What are the special review items for seismic fortification of overrun high rise building projects?

What are the special regret review projects for seismic fortification of overrun high-rise building projects?

1.Basic information (including: construction unit, project name, construction site, construction area, declaration date, survey unit and qualification, design unit and qualification, contact person and method, etc.).

2.Seismic fortification standards (including: fortification intensity or design parameters, seismic fortification classification, etc.).

3.The basic data of the survey report (including: site type, equivalent shear wave velocity and cover thickness, liquefaction discrimination, bearing layer name and burial depth, foundation bearing capacity and foundation scheme, unfavorable lot evaluation, etc.).

4.Foundation design overview (including: foundation type of main building and podium, foundation burial depth, thickness of basement floor and roof, pile type and monopile bearing capacity, main cross-section of cushion cap, etc.).

5.Layout and selection of building structure (including: height and number of floors of the main building, height and number of floors out of the roof, height and number of floors of the podium; Shockproof seam setting; the regularity of the floor plan and vertical orientation of the building; whether the structure type is complex or special; the size and structural form of the roof of the large spatial structure; seismic rating of concrete structures, etc.).

6.Structural analysis key results (including: computational software; Total shear force and periodic adjustment coefficient, total gravity of structure and shear coefficient, vertical stool jock value; the basic period in the direction of the vertical and horizontal torsion; maximum layer displacement angle and position, torsional displacement ratio; the maximum axial compression ratio of frame columns and walls; The maximum shear compression ratio of the component and the stress ratio of the steel member are coarse; floor stiffness ratio; the role of the framework part; The waveform and quantity of the time-history method, the comparison of the results of the time-history method and the response spectrum method, and the displacement of the seismic isolation support; large-scale spatial structure, roof stability, etc.).

7.Seismic structures designed beyond limits (including: the highest and lowest material strength of concrete, rebar, and steel for structural components; the maximum and minimum cross-sections of beams and columns in key parts, and the maximum and minimum thicknesses of key walls and cylinders; stub column distribution range; the main structures of split-layers, conjoined bodies, conversion beams, conversion trusses and reinforcement layers; The cross-sectional form and basic connection structure of key steel structural components; steel content and structure of steel reinforced concrete columns, etc.).

8.Questions to focus on (including: a brief description of performance design objectives; The main strengthening measures for the design of overrun engineering, the problems to be solved, the test results, etc.).

Legal grip rotten analysis:

The provincial, autonomous region, and municipality directly under the central government where the overrun high-rise building project is located is responsible for organizing the provincial, autonomous region, and municipality overrun high-rise building project seismic fortification expert committee to conduct a special review of the seismic fortification project of the overrun high-rise building section leakage.

The law is based on slippery evidence:

Regulations on the Management of Seismic Fortification of Overrun High-rise Building Projects

Article 4 Effective seismic measures shall be taken to ensure that the overrun high-rise building projects meet the seismic fortification objectives specified in the code.

Article 5 When carrying out the construction of overrun high-rise building projects in the seismic fortification area, the construction unit shall, in the preliminary design stage, submit a special report to the people's construction administrative departments of the provinces, autonomous regions and municipalities directly under the Central Government where the project is located.

In the overrun high-rise building project, if the following situations are applied, it is recommended to entrust the National Overrun High-rise Building Project Seismic Fortification Review Expert Committee to conduct a special review of seismic fortification:

1) High-rise building projects with concrete structures that exceed the "Code for High-rise Concrete Structures" Class B and mixed structures with the maximum applicable height in Chapter 11;

2) The height exceeds the specified staggered structure, the tower body is significantly different or the span is greater than 24m of the conjoined structure, and at the same time has more than two of the four types of complex structures with conversion layer, with reinforcing layer, staggered layer and conjoined, the height exceeds the "high-rise concrete structure regulations" grade A and the position of the conversion layer exceeds the specified number of floors and the height exceeds grade A and the horizontal and vertical direction are particularly irregular high-rise building projects;

3) Steel structure high-rise building projects that exceed the scope of application of Chapter 8 of the Seismic Code;

4) according to the requirements of Article 8 of this technical point, high-rise building projects that need to carry out model tests;

E) provinces, autonomous regions and municipalities directly under the Central Government construction administrative departments believe that it is necessary to entrust the national expert committee to review the cavity of other overrun high-rise building projects, including a variety of special structural types of high-rise building projects.