Detachable steel beam-concrete filled steel tube column penetrating connection joint

Abstract

The invention relates to a detachable steel beam-concrete filled steel tube column penetrating connection joint, which includes a concrete-filled steel tube column, H-shaped steel beams and a joint domain, a flange ring plate is arranged at one end of concrete-filled steel tube column, the joint domain comprises a steel pipe and a vertical connection plate communicating with the steel pipe, reinforcing ring plates are arranged on the upper part and the lower part of the steel pipe, the steel pipe, the vertical connection plate and the reinforcing ring plates are all fixed by welding, the steelpipe is poured with ultra-high performance concrete, the flange ring plate is connected with the reinforcing ring plates, and the four H-shaped steel beams are fixed to the joint domain in the shapeof a cross. According to the detachable steel beam-concrete filled steel tube column penetrating connection joint, all components adopt prefabricated connection, the workload of field welding and formwork consumption are significantly reduced, and the construction efficiency is greatly improved; and meanwhile, due to the fact that only bolts and a small amount of anchor bolts are used for connection, after the mission of an original building is completed, the components can be quickly disassembled and reused in a new building, and a more thorough green building structure concept is reflected.

Description

technical field [0001] The invention relates to the field of node design of building assembly structures, in particular to a detachable steel beam-concrete steel tube column through-core connection node. Background technique [0002] With the development of science and technology, the strength level of concrete has been continuously improved. At present, high-strength concrete has been successfully applied in structural engineering, but the flexural and tensile strength of high-strength concrete is still not high, and the strength of the structure must be increased by reinforcement. Strength, and a large number of reinforcements will bring difficulties in construction and pouring. At the same time, due to the shrinkage and deformation of concrete, the constraints of steel bars will also cause stress, resulting in cracking, which will have an adverse effect on durability. Compared with ordinary concrete and high-strength concrete, ultra-high-performance concrete increases the...

AI Technical Summary

Problems solved by technology

[0004] At present, the joints between concrete filled steel tube columns and composite beams in actual engineering are mostly connected by welds. This type of joints has the following problems: high rigidity, brittle failure at the welds is easy to occur when earthquake loads are applied, and it is affected by climate and welder level. Large size, difficult to guarantee construction quality, no detachable function, difficult to replace damaged beams

Images