Reinforcement built-in anti-shear steel plate concrete combination beam

Abstract

A built-in shearing resistance steel plate reinforcement concrete combination beam relates to a steel-concrete combination beam. The present invention removes the difficulty that, when concrete strength of the steel-concrete combination beam is high, shearing resistance capacity of the beam is increased by increasing strength level of the concrete and cross area of the beam, thus increasing construction difficulty and investment, and the construction quality cannot be guaranteed. Cross section in the present invention is one or a plurality of steel plates (1) longitudinally arranged through length of the beam in the stress reinforced steel bar (2), stirrups (3) and concrete (4) in the rectangular beam. Shearing resistance force of the reinforcement concrete combination column in the built-in shearing resistance steel plate is equal to the sum of the shearing resistance force of the reinforced steel bar concrete bar and built-in steel plate. The shearing resistance force is 2 times of the reinforced steel bar concrete beam with the same cross area and material, the construction is convenient and the cost is saved.

Description

technical field [0001] The invention relates to a steel-concrete composite beam in the field of civil engineering. Background technique [0002] In order to avoid baroclinic failure of reinforced concrete beams when they are sheared, the existing reinforced concrete beams often adopt the following two measures in order to ensure the shear bearing capacity of the beams: one is to increase the section size, and the other is to increase the design strength level of the concrete . Increasing the size of the section will affect the function of the building or structure. When the concrete strength level is already high, increasing the strength level of the concrete and increasing the section of the beam to increase the shear bearing capacity of the beam will not only increase the difficulty of construction, but also It will significantly increase the construction investment, and the construction quality is difficult to guarantee. Contents of the invention [0003] The present ...

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Problems solved by technology

[0003] The present invention solves the problem that when the concrete strength level of the existing steel-concrete composite beam is high, the shear bearing capacity of the beam is increased by increasing the strength level of the concrete and increasing the cross section of the beam, which affects the use function of the building or structure, and increases The difficulty of construction will also significantly increase the construction investment, and the construction quality is difficult to guarantee. A kind of built-in shear steel plate reinforced concrete composite beam is proposed. The specific technical solution to solve the above problems is as follows:

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