Lanzhou Zhongchuan International Airport Transportation Hub Project

By simply adjusting the relative position of the connector during connection, the track lines of the upper and lower threads of the butted reinforcement can be adjusted from non collinear to collinear

The strength of double screw sleeve is up to grade I, and the joint can be connected in the same plane. The reinforcement cage connection does not need to be staggered by 50%

Wulongxing double screw sleeve has the advantages of high strength, simple operation, fast construction speed and good mechanical properties

It has the characteristics of convenient, fast and simple connection, no power saving in construction, no obstruction in rain or wind, and all-weather construction

The exposure draft points out that by 2022, Beijing will realize that prefabricated buildings will account for more than 40% of the new building area, and by 2025, prefabricated buildings will account for 55% of the new buildings.

The draft also pointed out that affordable housing and commercial housing development projects with state-owned land use rights obtained by bidding, auction and listing should meet the standard of assembly rate of no less than 60%; The newly approved new buildings invested by the government, new public buildings, industrial buildings and other buildings within the scope of implementation shall meet the standard that the assembly rate shall not be less than 50%.

In terms of key work, the draft also gives relevant guidance and suggestions: give play to centralized scientific and technological support, strengthen systematic integrated design, improve standardized production level, promote lean construction, implement full decoration finished product delivery, improve information application level, innovate project organization and management mode, carry out evaluation demonstration and reward, and cultivate professional talent team.

The draft mentioned that it is necessary to support the R & D of prefabricated buildings and strengthen the R & D and application of new structural system, standardized design, quality inspection and efficient connection technology of prefabricated buildings. A database of major scientific and technological achievements of prefabricated buildings has been preliminarily established. Further improve the technical standard system, evaluation system and pricing basis of prefabricated buildings.

In addition, new buildings should implement the delivery of fully decorated finished products, gradually improve the application proportion of prefabricated decoration in indemnificatory housing, commercial housing and public buildings, and encourage the decoration and transformation of existing buildings to adopt prefabricated decoration.

Vigorously promote the application of building information model (BIM) technology in the whole life cycle of design, production, construction, operation and maintenance. The prefabricated construction projects invested by the government and public rental housing should apply BIM Technology in the whole life cycle, and other types of prefabricated construction projects are encouraged to apply BIM Technology in the whole life cycle.

Explore the establishment of an Internet platform for the construction industry, carry out intelligent upgrading of production equipment and construction equipment, encourage the application of intelligent equipment such as construction robots, industrial robots and intelligent mobile terminals, and promote intelligent office and building automation systems. Promote the integrated application of big data technology, 5g, radio frequency identification (RFID) and two-dimensional code identification in the construction and management of prefabricated buildings.

In the process of developing prefabricated buildings, on the one hand, real estate enterprises are actively layout. Vanke began to develop prefabricated buildings in 2003 and established Vanke Industrialization Center, which is committed to the research of prefabricated system. Since 2007, it has gradually promoted prefabricated buildings throughout the country and established Vanke prefabricated system.

At present, country garden has established a highly standardized parts library, house type library and building type library to open up the data flow of the whole industrial chain such as R & D, design, production, transportation and construction with the help of BIM Technology. Mass customization of PC components is realized through the automatic production line, and construction robots and intelligent construction equipment are applied on the construction site to reduce the waste of construction materials, improve the construction quality, and achieve green consumption reduction in the whole construction process.

In addition, real estate enterprises regard prefabricated construction as the key business of enterprise development in the future. Meihao real estate officially entered the field of prefabricated buildings in 2017 and announced the transformation from traditional real estate development to intelligent building integration business of integrated prefabricated buildings. According to the annual report, in terms of prefabricated construction business, Meihao real estate put into operation two factories in Wuhan Jiangxia factory and Qingdao Jimo factory in 2018, five factories in Henan Xinxiang, Hubei Jingzhou, Hefei Feidong, Chongqing Jiangjin and Changsha Miluo in 2019, and two factories in Chengdu Jintang and Jiangsu Yizheng in 2020. In 2020, the fabricated construction business of Meimei real estate involved a total amount of 4.765 billion yuan.

Capital is also laying out prefabricated construction innovation companies. On July 28, the digital technology integration platform company of prefabricated buildings, Dale decoration, announced the completion of strategic financing, and achieved component standardization based on AI prefabricated building design, so as to reduce costs and improve efficiency for customers and suppliers. Investors include star institutions such as Tencent and China Merchants.

On August 10, the assembly interior decoration company Weishi housing workers announced that it had completed a new round of financing of tens of millions of yuan, with the exclusive strategic investment of Panasonic electric.

Information shows that since 2014, China has successively issued a number of important policy documents to promote the development of prefabricated buildings. Among them, the action plan for prefabricated buildings in the 13th five year plan: by 2020, the proportion of prefabricated buildings in new buildings will reach more than 15%, of which the key promotion areas, active promotion areas and encouraged promotion areas will be more than 20%, 15% and 10% respectively; The opinions on promoting the sustainable and healthy development of the construction industry issued by the State Council office requires that by 2025, the proportion of prefabricated buildings in new buildings should reach 30%.

According to the data of prospective industry research institute, in 2020, the proportion of prefabricated buildings in the new construction area will reach 15%, 30% in 2025, and about 14% in 2018, so it will increase by an average of 2 percentage points per year in the future.

The data also shows that according to the reference basis of prefabricated construction cost issued by the Ministry of housing and urban rural development, based on 2230 yuan / m2 (considering the different effects of rising technology level and rising prices on the price level, assuming that the cost will remain unchanged in the next few years), the area of new real estate buildings will replace the area of new urban buildings, By 2024, the scale of China’s prefabricated construction market will reach more than 120 billion yuan.

At present, according to the guidance issued by Beijing, the development requirements and speed of prefabricated buildings are improving rapidly, and the trillion market may come quickly in the future.

(the article comes from the Internet. Please contact us to delete it if it is infringing.)

On June 28, principals of each company visited Wulongxing workshop and visited WL intelligent automatic rebar thread production line equipment of our company.

The equipment is independently developed by Beijing Wulongxing Technology Development Co., Ltd. and is a fully automatic rebar thread processing production line in China.

This equipment processes a 12m steel bar in 12 seconds, and each shift can process 100 tons. The whole line only needs 2 people to operate, which is 3-4 times the capacity of the conventional steel bar thread processing production line!

The thread is processed with high precision, and the reinforcement thread can reach grade 6 precision, and can meet the tolerance dimensions of length and diameter.

Recently, our company’s reinforcement mechanical connection joint and WL double screw sleeve reinforcement joint have been listed in the recommended list of certified suppliers of construction projects – and the list of excellent enterprise brands of China Construction and Research Institute Certification Center!

WL double screw sleeve reinforcement joint

Mechanical connection joint of reinforcement

Premier Li Keqiang stressed at the national teleconference on deepening the reform of “release, management and service” that “product certification management is the basic institutional arrangement to strengthen quality management and improve market efficiency under the condition of market economy” and “all those closely related to consumer life and can ensure product quality and safety through certification shall be converted to certification”. Product certification plays an important role in improving China’s product quality and guiding China’s industrial transformation and upgrading.

Voluntary product certification evaluates the quality, environmental protection, safety, reliability, compatibility, interoperability, efficiency and effectiveness of products, helps to guide product quality upgrading, increase effective market supply, improve market trust mechanism and create a good market environment.

As a comprehensive certification technical service organization integrating certification, standard setting, scientific and technological research and development, international cooperation, publicity and training, the certification center of China Academy of Building Sciences Co., Ltd. issues certificates to the products of the following excellent enterprises to prove that their products meet the social needs in the fields of quality and safety, low-carbon environmental protection, resource conservation and so on.

WL雙螺套鋼筋接頭應用在超長鋼筋籠對接

WL double screw sleeve reinforcement joint

The rib stripping and rolling straight thread reinforcement connection technology independently developed and produced by Beijing Wulongxing Technology Development Co., Ltd. has a history of more than ten years. It is a long-term product service provider of CSCEC and China Railway.

Over the years, the company has been adhering to the management concept of “quality first and reputation first” and constantly improving products and technology. Whether it is steel bar straight thread rib stripping and rolling machine or rib stripping and rolling straight thread sleeve, it has been trusted and affirmed by CSCEC, China Railway and other customers. The rib stripping and rolling straight thread joint produced by the company passed the product certification of the certification center of China Academy of Building Sciences in 2016.

Characteristics of joint:

● It is especially suitable for the connection of parts where the connecting reinforcement cannot rotate and the position error of the connecting reinforcement is large, and the connection quality can be guaranteed to meet the deformation performance requirements of class 1 joints of the industry standard under the condition that the middle of the reinforcement is not on the top;

● The connection is fast and convenient, and can bear the force after the connection is completed;

● Whether the joint quality is qualified or not, the joint appearance and torque can be visually inspected, and the installation torque can be inspected, which is simple and clear;

● No other machines, tools and equipment are required for connection operation, only a wrench is required;

● The joint has high quality and reliability, can fully meet the performance of 500MPa grade 1 joint, and can be connected at the same section of the structure, which is convenient for construction.

Applicable fields of joints:

Nuclear power project – connection of large-diameter vertical reinforcement mesh parts, connection of formwork free floor slab, reinforcement connection at the last joint of portal and annular reinforcement, spot inspection part of on-site joint, post cast strip and other special parts.

Bridge Engineering – connection of reinforcement parts such as foundation reinforcement cage, pier body reinforcement parts, tower body reinforcement parts, ground connecting wall reinforcement mesh, etc.

Prefabricated building — it can completely replace semi grouting and full grouting joints, and can be used for mechanical connection of vertical and horizontal reinforcement.

High rise core tube structure — mechanical connection of reinforcement parts, reinforcement parts and section steel parts.

Track engineering – mechanical connection of integral reinforcement of pier body components or reinforcement parts of viaduct.

Solve the problem that the reinforcement connection is not collinear

• By simply adjusting the relative position of the connector during connection, the track lines of the upper and lower threads of the butt reinforcement can be adjusted from non collinear to collinear!
• It can completely solve the problem of reinforcement connection of parts in building industrial construction.

It can completely solve the problem of reinforcement connection of parts in building industrial construction.

• High strength, simple operation, fast construction speed and good force teaching performance.
• Provide technical training and equipment maintenance services on the construction site in the later stage.

No pollution, all-weather construction

• The utility model has the advantages of convenient, fast and simple connection, no electricity for construction, no wind or rain, and can be constructed all day.
• Meet the corresponding environmental protection requirements, operate without open fire, and the construction is safe and reliable;

On August 4, the Ministry of housing and urban rural development, the Ministry of education, the Ministry of science and technology, the Ministry of industry and information technology and other nine departments jointly issued several opinions on accelerating the industrialization of new buildings, which benefited the BIPV (photovoltaic building integration) industry. The opinions pointed out that it is necessary to accelerate the integration and development of information technology and promote the development of intelligent construction technology. Accelerate the deep integration of new building industrialization and high-end manufacturing, and build an Internet platform for the construction industry. Promote intelligent photovoltaic application demonstration and promote the application of photovoltaic power generation system combined with buildings. Carry out intelligent upgrading of production equipment and construction equipment, and encourage the application of intelligent equipment such as construction robots, industrial robots and intelligent mobile terminals. Promote smart home, smart office and building automation systems to improve the convenience and comfort of buildings.

The certificate is certified and issued by Beijing Municipal Commission of science and technology. It is a product (service) with advanced technology, clear property rights, reliable quality and broad market prospect obtained by enterprises, universities, scientific research institutes and various social organizations through original innovation, integrated innovation and introduction, digestion, absorption and re innovation.

Being able to win this honor represents that the company’s intelligent full-automatic steel bar rolling production line has made obvious achievements in the field of steel bar engineering industrialization and the trend of energy conservation and environmental protection in the construction industry, and has been widely recognized by all sectors of the society!

This award means that the products will play a role in promoting air pollution prevention, sewage treatment, waste treatment, intelligent transportation, urban safe operation and emergency rescue, green building, housing industrialization and new rural construction. Recognized new technologies and products (services) can enjoy policy support such as government procurement, promotion and application.

Energy conservation and environmental protection are urgent

Fully implement the spirit of the 19th CPC National Congress and the second and third plenary sessions of the 19th CPC Central Committee, earnestly implement the decisions and arrangements of the CPC Central Committee and the State Council and the requirements of the national ecological and environmental protection conference, take the construction of ecological civilization as the guide, focus on the treatment of fine particulate matter (PM2.5), take intensive treatment as the means, CO governance as the basis and the rule of law as the guarantee, and focus on diesel trucks, dust In key prevention and control areas such as VOC Control, optimize and adjust the transportation structure, industrial structure, energy structure and land use structure, strengthen regional joint prevention and control, strive to strengthen urban fine management, comprehensively promote green development, resolutely win the blue sky defense war, and provide strong support for building a world-class harmonious and livable city.

By 2020, the improvement target of ambient air quality in this area will be further improved based on the target of the 13th five year plan, the concentration of PM2.5 will be significantly reduced, the number of days of heavy pollution will be significantly reduced, the ambient air quality will be significantly improved, and the citizens’ blue sky happiness will be significantly enhanced. Significantly reduce the total emission of major air pollutants, cooperate to reduce greenhouse gas emissions, and reduce nitrogen oxides and volatile organic compounds in the region by more than 30% compared with 2015; The ratio of heavily polluted days decreased by more than 25% compared with 2015. By 2020, the average concentration of PM2.5 in our region will be controlled at about 49 μ g / m3.

Strengthen construction dust control. All towns and streets are responsible for organizing various construction sites to comprehensively promote green construction, and strictly implement the dust control requirements of “six hundred percent” and “Three Guarantees in front of the door” for enclosure around the construction site, material stacking and covering, wet operation of earthwork excavation, pavement hardening, cleaning of incoming and outgoing vehicles, closed transportation of residue vehicles;

Low consumption and high efficiency, made in China

The full-automatic steel bar rolling production line developed and produced by our company can well solve this pain point problem, reduce energy consumption by greatly improving processing efficiency, and fully avoid the waste of human resources, land resources and energy consumption resources.

▲ High efficiency: process a 12m steel bar in 12 seconds, with a maximum processing capacity of 240 tons per shift. Only 2 people are required to override the whole line, which is 3-4 times the capacity of the conventional steel bar thread processing production line!

Mechanical connection technology of WL double screw sleeve reinforcement

On the other hand, WL double screw sleeve reinforcement mechanical connection technology is selected in the project, and the reinforcement component construction method is adopted to prefabricate the workpiece in advance, which will achieve better construction effect.

Taking the actual situation as an example, in the implementation of Humen No. 2 bridge and deep middle channel project, the construction unit has obtained the preliminary conclusion that the reinforcement component construction will shorten the construction time of reinforcement works on the working face by about 70% and the on-site construction personnel by about 70%. This not only solves the problems of pollution, dust and progress on the construction site, but also greatly shortens the construction period!

The intelligent automatic steel bar rolling production line is a revolution in the field of steel bar engineering industrialization. It truly completes the mission of low energy consumption, high efficiency, less manpower and less land occupation entrusted by the times. At the same time, this product not only makes you get twice the result with half the effort in terms of processing efficiency, but also achieves the industry-leading level in reinforcement processing accuracy!

▲ Full function: it integrates the functions of steel bar sawing, high-speed rib stripping, thread rolling, end leveling, etc. the same processing capacity means less workshop operation!

Main module functions

The informatization and intelligent management of this product will be reflected in the following modules:

Production line control center command module

• Prepare the equipment before the production shift according to the prompts on the system interface;
• According to the project and the company’s information management system, issue order instructions to the production line, and the system automatically generates daily processing plan and arranges production side by side;
• Manually adjust the position of the equipment according to the length of the reinforcement to be processed according to the production order;
• The operator of the production line manually adjusts the processing specifications of the thread rolling head and replaces the thread rolling wheels of corresponding specifications according to the instructions of the system interface;
• Start processing after being ready and receiving the machinable instruction;
• The system automatically generates production statistics reports.

Reinforcement sawing processing module

• The milling process is adopted, and the machined end face is flat, which fully meets the deformation performance requirements of the connecting joint;
• Milling processing has low noise, no dust pollution and meets the requirements of environmental protection;
• The efficiency of steel bar sawing is higher than that of wire rolling;
• The sawing length error shall be controlled within ≤± 1.0 mm,
• Reinforcement sizing measurement adopts automatic mode.

Reinforcement thread rolling processing module

• Thread rolling adopts two processes: rib stripping rolling and shaping direct rolling, and the production line device is configured according to the needs of customers;
• Rib stripping or shaping and thread rolling are divided into two process links and two sets of devices, which is conducive to improving the production and processing efficiency;
• Manually assisted rapid adjustment of thread processing diameter takes only about 10 minutes each time;
• The thread rolling of the production line adopts high-speed rolling process and special rapid tool withdrawal mechanism;
• The wire roller adopts high-quality materials and technology, and its service life can be several times that of conventional products, so as to avoid frequent replacement of accessories.

[automatic steel bar sawing and rolling wire production line] Click to view the product details

Civil engineering network

Novel coronavirus pneumonia emergency plan for housing and municipal engineering sites was issued in Guangdong housing construction office recently. Organization establishment, emergency response, classified treatment, follow-up management and protection, termination of the plan and other five parts are very detailed. The original text is as follows for your reference!

Department of housing and urban rural development of Guangdong Province

Notice on Issuing novel coronavirus pneumonia emergency plan for building and municipal works in Guangdong Province

Municipal competent departments of housing and urban rural development at or above the local level, transportation bureaus of Guangzhou, Shenzhen, Foshan, Huizhou, Dongguan and Zhongshan, rail transit bureaus of Foshan and Dongguan, water bureaus of Guangzhou, Shenzhen, Zhuhai, Heyuan, Dongguan, Zhongshan, Yangjiang, Zhanjiang and Maoming, Water Conservancy Bureau of Qingyuan, and relevant units:

To strengthen the novel coronavirus pneumonia emergency management in the construction of the municipal housing project in Guangdong, and strictly prevent the spread of the epidemic situation, according to the “emergency plan for public health emergencies in Guangdong”, the guideline for the prevention and control of the epidemic situation of New Coronavirus pneumonia in Henan Province (trial version second). Novel coronavirus pneumonia guideline for novel coronavirus pneumonia, novel coronavirus pneumonia in Guangdong, China, “the new guidelines for prevention and control of new housing in urban areas in housing and municipal engineering”, second, and “Guangdong County Housing and municipal works site prevention and control of new crown pneumonia emergency response plan” are hereby issued to you. Please conscientiously implement them.

Department of housing and urban rural development of Guangdong Province
March 3, 2020

Novel coronavirus pneumonia emergency plan for Guangdong municipal housing and municipal works site prevention and control

The novel coronavirus pneumonia prevention and control system should be effectively guided to prevent and prevent the occurrence and spread of the new crown pneumonia in construction sites in the province. The emergency disposal work should be standardized, the health and safety of the employees should be protected, and the economic losses and adverse effects caused by the epidemic to the construction site could be reduced to the maximum. Novel coronavirus pneumonia guidelines for novel coronavirus pneumonia in Guangdong province (Second Edition) are issued according to the “Guangdong provincial emergency plan for public health emergency”, “guidelines for the prevention and control of new crown pneumonia in organs, enterprises and factories” (Second Edition), “guidelines for the prevention and control of new crown pneumonia in Guangdong housing and municipal engineering sites” (Second Edition). This plan is formulated in combination with the actual situation of construction sites in the province.

1、 Organization

all The construction site prevention and control leading group (hereinafter referred to as the prevention and control leading group) led by the owner must be established immediately according to the requirements of the project. The member units include general construction contractor, supervisor, professional contractor, labor subcontracting and other relevant units. The leading group consists of functional groups such as medical support, safety and logistics support and disinfection team, as well as temporary medical observation points and epidemic prevention material allocation on the construction site, so as to clarify the division of responsibilities and guarantee mechanism. Organize the preparation of emergency plans for epidemic prevention and control, And organize emergency plan drill. After the drill, evaluate the drill effect, analyze the existing problems, and put forward revision opinions on the emergency plan. Set up the post of health administrator, arrange special personnel to receive training, collect the health status of construction employees, and report the health status of employees to the local health department according to regulations.

2、 Emergency disposal

（1）Exception found. When employees are found to have fever, fatigue, dry cough and other suspected symptoms, they shall immediately report to the prevention and control leading group, which shall immediately start the emergency plan. Work shall be carried out according to the following four categories:
one If employees living outside the construction site have suspected symptoms, the health administrator shall require them to wear masks and stay in the room; Personnel in the same dormitory or room shall wear masks at the same time, temporarily stay in the room, keep the room ventilated, and keep a safe distance of at least 1m from them.
two Once employees living in dormitories on the construction site have suspected symptoms, the health administrator shall require them to wear masks and send them to temporary medical observation points on the construction site for isolation; Residents in the same dormitory shall wear masks and temporarily stay in the dormitory room.
three In case of any suspected symptoms of employees in the construction operation area, office area, canteen or other public areas, the health administrator shall require them to stop operation immediately, wear masks and send them to temporary medical observation points for isolation; Personnel in close contact with the construction operation area, office or other personnel (within a safe distance of 1m) shall wear masks and send them to temporary medical observation points for temporary detention. In the process of disposal, try to avoid taking the construction elevator, avoid being close to the crowd and prevent the spread of the epidemic.
four Once employees at the entrance and exit of the construction site have suspected symptoms, the health administrator shall require them to wear masks and temporarily place them in the nearby open space. People in close contact (within a safe distance of 1m) shall wear masks and temporarily leave them in the nearby open space. The surrounding people shall be evacuated immediately to prevent people from watching or gathering.
For other employees in close contact with the above situations, the health administrator shall require them to wear masks and send them to temporary medical observation points for isolation.
（2） Preliminary investigation. In case of suspicious cases, the health administrator shall immediately report to the local health department where the construction site is located, and assist in inquiring about whether the persons with suspected symptoms have residence history, travel history or contact history with other cases in key areas of the epidemic in recent 14 days, so as to carry out preliminary investigation.
（3） Send to hospital for treatment. The work shall be carried out according to the following two categories:
1. If there is no epidemiological history, it is required to wear a mask, and the general contractor shall arrange a special vehicle to send it to the fever clinic of the local designated hospital for treatment.
2. If there is an epidemiological history, ask them to wear masks, immediately contact the local designated hospital, and the hospital will arrange an ambulance to transfer them to the fever clinic for further examination and treatment. At the same time, report to the local disease control agency.
（4） Follow up. The construction general contractor shall track and follow up the medical treatment information of employees in the whole process according to the following two situations:
1. if the novel coronavirus pneumonia can be excluded, temporary retention of the relevant personnel is removed.
2. if novel coronavirus pneumonia cannot be excluded, relevant investigation and disposal work should be carried out in conjunction with the CDC.
All personnel who cooperate with disease control institutions to carry out epidemiological investigation shall do a good job in personal protection and wear medical surgical masks.
3、 Classification processing
（1） Disposal by patient type
1. Suspected patient. After receiving the notification of suspected patients from the disease control agency, the general contractor shall assist in investigation and treatment, do a good job in the investigation and registration of close contacts of suspected patients, timely obtain the behavior track of employees with suspected diseases and the information records of contacts, objects and areas, delimit the risk scope, isolate frequent contacts and objects, and take emergency measures according to the risk degree.
2. Confirm the patient. After receiving the notification of confirmed patients from disease control institutions, the construction general contractor shall assist in investigation and disposal, identify employees who have had contact with patients and search for close contacts. Under the guidance of the disease control institution, according to the epidemic prevention regulations and disinfection guidelines, clean, disinfect at any time and disinfect at the end of the case’s dormitory (residence), construction operation area, public places and construction elevator. In principle, the places where the diagnosed patients have been from 2 days before the onset to before isolation treatment, and the places where they stay for more than 1 hour, have small space and poor ventilation should be listed as epidemic spots. In principle, one or several construction areas, offices, meeting rooms, the same corridor and the same building are the units of epidemic spots. Places involved in the diagnosis of patients and their close contacts It can be used again only after terminal disinfection.
Do a good job in cleaning, disinfection and epidemic prevention in other areas, especially ensure the ventilation, air conditioning and other public facilities and public appliances in personnel gathering places, and disinfect public places such as offices, canteens, dormitories, conference rooms, construction areas and toilets every day; According to the suggestions of local disease control institutions, start closed management, take measures such as blocking dormitories and buildings according to local conditions, and strictly restrict the access of personnel, especially foreign personnel and vehicles. Continue to do a good job in the health monitoring of employees, cooperate with disease control institutions to do a good job in the health monitoring of centralized isolated medical observers, and ensure the supply of facilities, equipment and materials required for emergency disposal, as well as the safety of catering and drinking water. Communicate with disease control institutions every day and report the latest situation in time.
（2） Dispose according to the degree of aggregation
1. If there is a suspected case, or a patient, or an epidemic caused by contact outside the construction site, and no transmission occurs within the construction site through epidemiological investigation, implement zoning management, check the body temperature and health status of personnel entering and leaving the construction site, minimize the gathering of employees, disperse protection, and follow the requirements of disease control institutions, Take rotation or partial shutdown measures as appropriate.
2. In case of more than 2 sporadic cases, or 2 unrelated aggregated outbreaks of infection caused by contact outside the construction site, or 1 aggregated outbreak of infection caused by contact inside the construction site, the local epidemic prevention and control headquarters shall take corresponding control measures after evaluation. Hard isolation shall be implemented for construction sites with aggregated epidemic situations. The local competent department of housing and urban rural development, under the leadership of the local epidemic prevention and control headquarters, shall cooperate with the health department to investigate and decide whether the construction site is shut down due to the epidemic situation and the scope of shutdown.
4、 Follow up management and protection
（1） Strict isolation. In principle, Close contacts are those who live and work with patients (such as offices, construction work areas, teams, etc.), or other personnel in close contact, such as construction elevators, corridors, public toilets, etc; Those who take transport vehicles together, such as all personnel of fully enclosed air-conditioned buses; Passengers and drivers in the front and rear rows of ventilated ordinary buses, as well as those who are found to meet the close contact conditions through on-site investigation and evaluation. In addition to close contacts, those who have been in contact with the case but do not meet the judgment principle of close contacts are determined as general contacts.
Those who are determined to be close contacts through investigation by disease control institutions shall be handed over to the local designated centralized isolation medical observation point for 14 days of centralized isolation medical observation. Before implementation, the flow shall be reduced locally; Novel coronavirus pneumonia should be registered and informed by health. It is necessary to inform the health administrator when fever, cough and other new symptoms of pneumonia are suspected.
（2） Strengthen publicity. We should cooperate with the local epidemic prevention and control headquarters to do a good job in publicity and psychological counseling for construction workers. Novel coronavirus pneumonia prevention and control knowledge is publicized through various channels and forms. Carry out targeted psychological support and crisis intervention according to the actual situation of different groups such as confirmed cases, suspected cases and close contacts, Stabilize the mood of construction workers and avoid excessive panic.
5、 Termination of plan
(1) novel coronavirus pneumonia can be terminated after suspected cases are sent to the fever clinic of a local designated hospital.
（2） When the cases have been treated in isolation, the close contacts have been observed for 14 days, there are no new cases in the follow-up, and the environment has been effectively disinfected, the prevention and control leading group shall decide to terminate the response after being evaluated by the local health department.
Implementation time of the plan From the date of issuance to the end of the epidemic situation.

This is an Italian EVG steel bar bending production line with a total investment of 5 million. The equipment operates reliably and stably, with low failure rate and high production efficiency. It often operates in two shifts. The maximum bending workpiece size is about 3M and the bending dimension error is about 2mm.

The maximum processed reinforcement specification of the production line is 28mm.
Italian EVG equipment is also used for wire bending, with an investment of 3 million yuan.

It can be processed by the control center, and the size of machined parts can be adjusted automatically.

Moving the bar loading platform car to process different specifications can realize automatic adjustment of loading.

Ordinary automatic sawing machine is used for bar sawing.

The upsetting process is adopted for the processing of bar thread, which is the central part of the bridge sink and is connected with the pier body to match the semi grouting sleeve. The specification of main reinforcement is 40mm reinforcement.

This is the pier body reinforcement fabrication bench. About two can be fabricated for one bench per day.

Wulongxing company has been rated as the high-quality supplier of the third company of China Construction Second Bureau for many times and has undertaken nearly 300 cooperation projects, including representative works: Beijing China Trade Center, headquarters office building of China Development Bank, Beijing Olympic shooting hall, fengke Wanda, West Rail Wanda, Tongzhou Wanda, Langfang Wanda, Nanchang Wanda City, etc.

During the inspection, Wang Kaiyu, general manager of Wulongxing company, introduced the latest R & D achievements of the company to all leaders in detail: Invention Patent: WL double screw sleeve reinforcement joint and intelligent reinforcement sawing full-automatic straight thread rolling production line. The production line in the workshop carried out actual operation demonstration. Everyone paid special attention to the reinforcement automatic sawing function and processing accuracy of the production line, Moreover, this production line is the product with the most comprehensive functions, the highest production efficiency and processing accuracy in the market. One production line can replace 12-16 sets of traditional reinforcement straight thread processing equipment, save 18-24 labor personnel and greatly reduce the production and manufacturing cost. You are looking forward to this product as soon as possible to provide you with comprehensive reinforcement processing service guarantee!

WL double screw sleeve joint is the latest generation of reinforcement mechanical connection technology, which can be used for overall butt joint of reinforcement cage, overall butt joint of diaphragm wall and overall butt joint of tunnel inverted arch. The welded double screw socket joint developed by the company can be applied to the butt joint of reinforced rigid columns, which effectively replaces the connecting wing plate, saves a lot of steel, improves the on-site operation speed, and has remarkable economic benefits. At the same time, it can be applied to many fields such as PC building, reinforcement part connection, bridge engineering, nuclear power engineering, high-rise and super high-rise engineering. The visiting guests fully affirmed this new “dry” connection product of prefabricated and assembled reinforcement.

At present, China Nuclear Huaxing company is the strongest company in the field of nuclear power construction in China, accounting for more than 60% of the market share in the field of nuclear power construction. In addition, it has strong strength in construction projects, civil housing construction, bridges, municipal administration and other fields. Accompanied by Yang Zhongyong, deputy general manager and chief engineer of the company’s nuclear power division, Zhang Leilei, manager of the technical center of the company’s nuclear power division, and Xu Liniu, mechanical engineer。

During the inspection, Wang Kaiyu, general manager of Wulongxing company, introduced the latest R & D achievements of the company in detail: WL double screw sleeve reinforcement joint and automatic production line for reinforcement straight thread processing. The actual operation of the production line in the workshop was demonstrated. You pay special attention to the automatic steel bar sawing function of the production line, and this production line should be the product with the most complete functions and the highest production efficiency in the market. You look forward to this product serving the nuclear power project as soon as possible.

Double screw socket joint is the latest generation of reinforcement mechanical connection technology, which can be used in many fields such as PC building, reinforcement part connection, bridge engineering, nuclear power engineering, high-rise and super high-rise engineering. When the project application has further implementation cases, leaders of Huaxing company will be invited to visit the project for guidance and investigation.