Connecting joint of prefabricated hollow steel-reinforced concrete column and steel beam and construction method

Abstract

The invention discloses a connecting joint of a prefabricated hollow steel-reinforced concrete column and a steel beam and a construction method. The connecting joint comprises the prefabricated hollow steel-reinforced concrete column, the H-type steel beam, a horizontal connecting disc and a connecting piece. In the construction process, the horizontal connecting disc and the connecting piece are attached to a central steel tube to be manufactured with the hollow steel-reinforced concrete column in a factory, and prefabricated hollow steel-reinforced concrete column splicing and steel beam installation are carried out at the construction site. The connecting joint is simple in structure and reliable in force transmission. The steel beam and the hollow steel-reinforced concrete column are manufactured in the factory, therefore, the operation condition can be improved, and the quality is easily guaranteed. The construction method for connecting the steel beam with the prefabricated hollow steel-reinforced concrete column is easy and convenient to achieve, and influences of installation errors on stress in a joint area are fewer. After concrete is poured, two materials including steel and the concrete are mutually limited and jointly stressed, and the improvements of the bearing capacity, the rigidity and the ductility of the joint are facilitated.

Description

technical field [0001] The invention belongs to the field of construction engineering, and in particular relates to a connection node and a construction method of a prefabricated hollow steel concrete column and a steel beam. Background technique [0002] As a kind of composite material, steel concrete is widely used in engineering. It cleverly plays the respective advantages of the constituent materials and has good technical and economic effects. Affected by the inherent mechanical characteristics of concrete, steel concrete can especially exert its advantages when applied to axially compressed or eccentrically compressed members. However, when applied to flexural members, its advantages are weakened, and steel beams are still flexural. The best choice for components. In order to give full play to the performance of materials and build a more reasonable and economical building structure, a hybrid structure using steel concrete columns and steel beams has emerged. No matt...

AI Technical Summary

Problems solved by technology

This invention still has the following disadvantages: first, because the steel beams on both sides of the column are connected by the same set of bolts, the failure of the bolts will cause continuous damage to the structure; second, due to the limitation of the section size of the column, it is difficult to arrange enough bolts In order to ensure that the beam end reaches the full section plasticity, the material strength of the steel beam cannot be fully utilized; thirdly, in practical applications, steel beams need to be arranged in two directions perpendicular to each other and the elevation of the top of the beam must be kept the same, which will inevitably result in two directions. Collision of bolts

Guo Ming and others applied for a utility model patent (application number 201220230419.2) titled "Beam-column Joint Structure of Composite Section Concrete Steel Tube Column and Steel Beam". The joint proposed by this utility model also has the problem that bolts are not easy to install. The beam makes the outer steel pipe wall to be subjected to tension and compression outside the plane, and the stiffness and strength of the joint cannot be guaranteed

Images