Honeycomb-shaped steel web and steel pipe concrete flange combined T-shaped section column

Abstract

The invention discloses a honeycomb-shaped steel web and steel pipe concrete flange combined T-shaped section column. The honeycomb-shaped steel web and steel pipe concrete flange combined T-shaped section column comprises a first steel pipe concrete flange, a second steel pipe concrete flange, a third steel pipe concrete flange, a first steel web, a second steel web and holes; one side edge of the second steel web is perpendicularly connected with the middle part of the first steel web and the other side edge of the second steel web and two side edges of the first steel web are respectively connected with the first steel pipe concrete flange, the second steel pipe concrete flange and the third steel pipe concrete flange together to form the special-shaped steel column with a T-shaped section; the first steel web and the second steel web are honeycomb-shaped webs of which the middles are provided with the holes; each of the first steel web and the second steel web respectively consists of steel plates of which the edges are provided with notches; the steel plates are welded by butt-jointed seams to form the honeycomb-shaped webs. According to the invention, the structural behavior is improved without obviously increasing comprehensive cost, so that the special-shaped column structure is more widely applied to multi-storey and high-rise residences.

Description

technical field [0001] The invention relates to the technical field of a novel building structure, in particular to a T-shaped column with a combined section of a honeycomb steel web-concrete steel tube flange. Background technique [0002] In residential buildings, special-shaped column structures have incomparable advantages over other structural systems, and are more and more favored by people. In recent years, they have been highly valued by scholars and engineers at home and abroad, and thus have been widely used. [0003] However, in multi-story residential buildings, the reinforced concrete special-shaped column structure is difficult to meet the bearing capacity requirements due to the limitation of the length and thickness ratio of the column section, the crowded reinforcement in the node area, and the unsatisfactory seismic performance and difficult to deal with. The advantages of the special-shaped column cannot be fully reflected, thereby limiting its application...

AI Technical Summary

Problems solved by technology

In order to meet the requirements of compressive bending mechanical performance, a larger section size is usually required. If a solid-web type T-shaped section special-shaped steel column is selected, the web shear strength will be much more abundant. However, in order to ensure the local stability of the web, it is necessary to meet the The web height-to-thickness ratio limit specified in the "Code for Design of Steel Structures" usually needs to increase the web thickness, which will lead to increased steel consumption and increased project costs, thereby increasing the overall cost of the project; if the truss type is selected T-shaped cross-section special-shaped steel columns, in addition to their limited shear bearing capacity, seismic performance and overall stability, the truss-type webs need to be welded with plates or strips, the construction is relatively cumbersome, and the connection workload is relatively large, which increases the Construction cost, which also increases the overall cost of the project

Moreover, when the bending moment effect is large, the flanges of the above two T-shaped special-shaped steel columns may enter the failure state prematurely, causing the steel columns to quickly lose their resistance; at the same time, the above two steel columns are all pure steel structure, its fire resistance is poor

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