Opening structure of reinforced concrete beam

Abstract

The invention discloses an opening structure of a reinforced concrete beam. The opening structure is characterized in that a position of an opening formed in the abdomen of the cast-in-place reinforced concrete beam is reserved, and reinforcing steel bars, confined stirrups and steel tie bars are configured at the opening; the reinforcing steel bars comprise opening upper-part reinforcing steel bars and opening lower-part reinforcing steel bars which are configured at the upper part and the lower part of the opening respectively; the opening upper-part reinforcing steel bars and beam upper-part reinforcing steel bars are wound with the confined stirrups, and the opening lower-part reinforcing steel bars and beam lower-part reinforcing steel bars are wound with the confined stirrups; and the steel tie bars are also configured nearby the opening of the beam, pulled from the lower part of a side wall of one side of the beam to the upper part of a side wall of the other side of the beam and extend into a beam plate. The reinforcing steel bars, the confined stirrups and the steel tie bars are configured nearby the opening of the beam, and by means of characteristics and performance of region constraints, the intensity and ductility reduction which is caused by opening of the beam abdomen is effectively reduced, the anti-bending and shear-resisting capacity of the reinforced concrete beam is guaranteed, the phenomenon of stress concentration of the periphery of the opening is relieved, and the reliability of the structure is improved.

Description

[0001] technical field [0002] The invention relates to a reinforced concrete beam opening structure, which belongs to the technical field of reinforced concrete structure design and construction. Background technique [0003] Reinforced concrete structure is one of the most widely used structural forms in the field of construction engineering. Since the reform and opening up 30 years ago, my country's economy and society have developed rapidly, and reinforced concrete structures have also experienced unprecedented opportunities for development in my country's industrial and civil buildings. In actual engineering, due to the owner's control of the construction cost or building as many floors as possible within the limited height to maximize the building area, and at the same time, the architect pursues higher headroom requirements to achieve the comfort of the building. When the size of the components is fixed, it is very important how to reasonably reduce the height occup...

AI Technical Summary

Problems solved by technology

In actual engineering, due to the owner's control of the construction cost or building as many floors as possible within the limited height to maximize the building area, and at the same time, the architect pursues higher headroom requirements to achieve the comfort of the building. When the size of the components is fixed, it is very important how to reasonably reduce the height occupied by the equipment and pipelines through the cooperation of various disciplines. This is also a major challenge for the design unit

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