by The 14th five year plan of Shanghai precast buildings issued by Shanghai Municipal Commission of housing and urban rural development mentioned that during the 14th Five Year Plan period, Shanghai continued to focus on precast buildings, deepen the innovation, transformation and development of the construction industry, strengthen the application of information and intelligent technology, realize the upgrading and development of precast buildings from existing to excellent, and improve the project quality, safety, efficiency and quality.
The promotion mechanism of precast buildings was basically established.
During the 13th Five Year Plan period, on the basis of adhering to policy guidance, Shanghai paid more attention to the combination of “Introduction” and “coercion”, focused on the implementation of projects, and opened a new situation in the development of precast buildings.
Through the introduction of policies such as special fund support for demonstration projects, preferential pre-sale of commercial houses and incentives for floor area ratio, encourage the landing of high prefabrication rate projects and the application of innovative technologies, and fully mobilize the participation enthusiasm of development enterprises; At the same time, by clarifying the requirements of precast buildings in the land transfer stage, the implementation proportion of precast buildings and single prefabrication indicators can be controlled.
By the end of 2020, the total area of precast buildings in the land transfer stage in Shanghai has been about 150 million square meters.
In 2020, the aboveground construction area of newly started precast buildings in Shanghai accounted for about 91.7% of the aboveground construction area of newly started buildings.
In addition, Shanghai has actively studied and judged the development needs of precast buildings, successively issued promotion policies involving design consultation, component production, on-site construction and completion acceptance, and enriched and improved the promotion mechanism of precast buildings.
By providing policy and business training and building a technical exchange platform, effectively guide the development enterprises to increase the investment and development of precast construction projects; By supporting design, construction, supervision and other enterprises to adjust their business structure in time, the understanding and acceptance of precast buildings in the construction industry have been improved, and the business ability of precast buildings practitioners has been enhanced; By guiding the rational layout of precast component factories in the region, effectively improve the production level of precast components, promote the rapid development of the industrial chain, and create conditions for the large-scale development of precast buildings.
By fully evaluating the application and development of precast buildings during the 13th Five Year Plan period, Shanghai has continuously improved the supporting policies of precast buildings.
In February 2019, the Municipal Commission of housing and urban rural development issued the notice on further clarifying the implementation scope and relevant work requirements of precast buildings (hjbm [2019] No.
97), revising and improving the implementation scope and index requirements of precast buildings; In November 2019, the detailed rules for calculation of prefabrication rate and assembly rate of precast buildings in Shanghai (hjbm [2019] No.
765) was revised and issued.
On the basis of fully considering the proportion value of external enclosure and internal decoration components, the calculation method of precast building index was adjusted, and the application of new technology system and process was encouraged, so as to make the evaluation system more scientific and reasonable.
With the continuous growth of road maintenance tasks in Shanghai.
Pavement assembly repair technology is a fast, efficient and green maintenance method.
In order to promote the application of pavement assembly repair technology in the maintenance of roads and urban roads in Shanghai.
According to the requirements of the notice on printing and distributing the 2019 Shanghai engineering construction specifications and building standard design preparation plan (HJB [2018] No.
753) issued by Shanghai Municipal Commission of housing and urban rural development and the notice on Issuing the 2019 Standard Specification project plan (HJK [2019] No.
208) issued by Shanghai Municipal Commission of transportation, Shanghai Road Transportation Development Center, together with Tongji University, formed a preparation team to undertake the preparation of technical specifications for pavement precast repair.
Based on a lot of research and investigation work, the preparation team summarized the practical experience of pavement precast repair, referred to relevant national and industrial standards, and formulated this procedure after extensive consultation.
This procedure mainly includes: General; Terms and symbols; Basic regulations; Material Science; Structure and structure design of pavement assembly repair; Precast pavement slab prefabrication; Pavement assembly repair construction; Quality inspection and methods; Description of words used in this procedure; List of referenced standards; Article description.
This procedure is formulated to meet the needs of Shanghai pavement precast repair and improve the quality of pavement precast repair engineering.
This procedure is applicable to the design, construction and quality acceptance of precast repair works of roads at all levels and urban roads.
The design, construction and quality acceptance of pavement precast repair shall not only be carried out in accordance with this specification, but also comply with the provisions of relevant current national standards…
