I-shaped steel SRC beam with 45 degrees oblique arrangement of cross-shaped steel SRC column assembly nodes
A combination technology of cross-shaped steel and columns, which is applied in the direction of building types, building components, and earthquake resistance, can solve the problems of reduced bearing capacity and deformation capacity, poor core concrete restraint effect, and insufficient seismic performance
Inactive Publication Date: 2017-07-11
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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Problems solved by technology
However, with the deepening of engineering application and research, among ordinary steel concrete column joints, SRC columns often contain I-shaped steel. Although this type of steel column has stronger seismic capacity than reinforced concrete columns, its impact on the column section The confinement effect of the core concrete is poor, and the slip between the steel and concrete reduces the bearing capacity and deformation capacity of the column, and the seismic performance in high seismic intensity areas and high axial compression ratios is still insufficient
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[0024] The present invention will be further described below in conjunction with specific embodiments and accompanying drawings. It should be noted that the following examples are limited to explain the present invention, but do not limit the implementation scope of the present invention. All structural additions made on the basis of this scheme or replacements with the same content shall belong to the protection scope of the present invention.
[0025] figure 1 to combine image 3 , Figure 4 As shown, the I-shaped steel SRC beam-45 degree obliquely arranges the cross-shaped steel SRC column composite joints, including concrete columns, concrete beams, and column steel frames set in concrete columns, and beam steel frames set in concrete beams, where: as figure 2 , image 3 As shown, the concrete column is a square column, and the concrete column includes a column steel frame formed by several column longitudinal steel bars 2 and column stirrups 3 horizontally surroundin...
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The invention discloses an I-shaped steel SRC beam with 45 degrees oblique arrangement of cross-shaped steel SRC column assembly nodes. The I-shaped SRC beam comprises a concrete column and concrete beams arranged on both sides of the concrete column, the concrete column comprises a column reinforcement frame formed by a plurality of column longitudinal reinforcements and column tie-bars surrounding horizontally along the column longitudinal reinforcements, and a frame formed by the column tie-bars and the column longitudinal reinforcements is internally provided with cross-shaped steels with flanges which are distributed obliquely in 45 degrees; each of the concrete beams comprises a beam steel frame formed by a plurality of beam longitudinal reinforcements and beam tie-bars surrounding horizontally along the beam longitudinal reinforcements; and a frame formed by the beam longitudinal reinforcements and the beam tie-bars of the concrete beam is internally provided with I-shaped steels, and the I-shaped steels are horizontally connected with the flange angle of the cross-shaped steels. The cross-shaped steels in diagonal distribution are arranged in the concrete column, the I-shaped steels are arranged in the concrete beams, and rectangular steel plates and stiffening ribs are arranged in a node area. According to the SRC column, seismic performance can be greatly improved, and the purpose of strong node and weak component is achieved, so that a component has good seismic performance.
Description
technical field [0001] The invention relates to a composite frame joint of a steel concrete beam and a steel concrete column, in particular to a composite joint of an I-shaped steel SRC beam with a cross-shaped steel SRC column arranged obliquely at 45 degrees. Background technique [0002] The steel-reinforced concrete structure is an embedded composite structure system in which steel is used as the skeleton and steel bars and poured concrete are arranged around the steel, referred to as SRC structure. For the steel concrete frame, the node is the force transmission hub of the structure and the key part connecting the beam and the column. At present, in the SRC column-SRC beam composite structure, the steel concrete columns mainly adopt several steel forms such as I shape and core cross. Experiments show that the seismic performance of steel concrete columns is improved compared with ordinary RC columns. However, with the deepening of engineering application and research, ...
Claims
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Login to View More IPC IPC(8): E04B1/30E04B1/58E04B1/98E04H9/02
CPCE04B1/30E04B1/185E04H9/021
Inventor 王秋维张春尧史庆轩门进杰姜维山
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY