劲性钢柱(梁)实例（Example of stiff steel column (beam)）.docVIP

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劲性钢柱(梁)实例（Example of stiff steel column (beam)）.doc

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劲性钢柱(梁)实例（Example of stiff steel column (beam)）

劲性钢柱(梁)实例（Example of stiff steel column (beam)） Example of stiff steel column (beam) 1. project overview 1.1 project introduction Project site: a site in Hexi, Nanjing The construction of the steel structure of this project is No. 1 building (main business building) of a news center. The building is a reinforced concrete frame, the seismic wall structure, the pile and raft foundation, the frame column adopts the stiff column (steel column), the 4 level above is partly equipped with the stiffening beam (steel reinforced beam), and the floor slab is the cast-in-place concrete floor. The underground 1 layer and the pipe interlayer, 34 floors above ground (including the computer room), the structure height is 156m, the main construction function is the newspaper business use, the office and the auxiliary room. Hoisting of steel structure, set up TC7052 tower crane according to field conditions. 1.2 main structure types of the project The engineering building of frame column 1, the SRC column (columns), from the basement to the 7 floor structure, periphery is arranged with 16 cross shaped columns (columns), two core wall with 16 H type steel column (columns), more than 7 layers of H type of concrete (steel column); between 4 and above the two core tube, a locally stiff beam (steel beam). The cross sectional stiffness column (steel reinforced column) from basement to 6 (elevation -11.44~26.750m) is 800 x 200 x 30 * 30MM, and 6 to 7 layers (elevation 35.150m~26.750m). The cross sectional dimensions are 800 * 200 * 20 * 20mm. Steel frames are as follows: Sketch of steel frame in frame column In the core barrel, there are 16 sections of the H type, the elevation from the floor to the roof, the cross-section size of 400 x 300 x 25 * 30MM stiff column. The steel skeleton diagram is shown below: Sketch of steel frame in core tube Survey of 1.3 steel reinforced concrete beams The horizontal structure of the project is made up of 2 24m cross steel beam connections in the 4 layers