Whole assembly type steel concrete combined beam

Abstract

The invention discloses a whole assembly type steel concrete combined beam. The whole assembly type steel concrete combined beam comprises joist steel, concrete is arranged on the upper portion of the joist steel, the bottom face of the concrete is in contact with the top face of the joist steel, multiple fixing modules are arranged in the concrete, each fixing module comprises a steel cover plate which is horizontally and transversely arranged, a thread sleeve which is vertically arranged is arranged on the lower portion of the steel cover plate, the top face of the thread sleeve is in contact with the bottom face of the steel cover plate and is in fixed connection, the fixed modules are fixedly connected with the concrete, multiple vertical through holes are formed in the front flange and the rear flange of an upper leg on the joist steel, the through holes correspond to the thread sleeve in position, bolts are arranged in the through holes, and penetrate through the through holes to enter the thread sleeve, bolt threads are matched with threads of the thread sleeve, nuts are arranged on the bolts, the nuts are in contact with the bottom face of the upper leg of the joist steel, and bolts are arranged on the front flange and the rear flange of the upper leg of the joist steel. The combined beam has the beneficial effects that assembling rate is improved, the steel structure and the concrete can be rapidly connected, the steel beam, the concrete plate and the bolts have the convertibility, and the structure is more stable and firm.

Description

technical field [0001] The invention belongs to the technical field of steel-concrete composite beams, and in particular relates to a fully assembled steel-concrete composite beam. Background technique [0002] At present, steel-concrete composite beams, which give full play to the compressive properties of concrete and the tensile properties of steel beams, are increasingly widely used in the field of structural engineering. [0003] The mechanical performance of the steel-concrete composite beam structure depends on the effective transmission of shear stress at the junction of concrete and steel beams. The design of the junction is very critical. It must be considered whether the longitudinal and horizontal shear forces occurring between the steel and concrete materials can It is effectively controlled to ensure that there is no relative displacement between the two different materials when the structure moves, and the effectiveness of the connection here directly affects ...

AI Technical Summary

Problems solved by technology

[0004] The shear connection key is a key component that combines the steel beam and the concrete flange to work together, and plays the role of transmitting the longitudinal shear force between the steel beam and the concrete flange. The traditional connector concrete needs to be poured on site, and the construction period It is longer and the effect is poor after molding. For this reason, engineers have been looking for prefabricated solutions

Images