A new type of high-performance reinforced concrete beam and its manufacturing method

Abstract

The invention discloses a novel high-performance reinforced concrete beam comprising a concrete beam body and a steel bar cage precast in the concrete beam body. Arc steel plates are symmetrically arranged at the two ends inside the steel bar cage, and the lower ends of the arc steel plates are fixedly connected with lower longitudinal bars correspondingly. Mid-span crossing zigzag form rotatable steel plates are arranged in the middle of the steel bar cage, and the lower ends of the mid-span crossing zigzag form rotatable steel plates are fixedly connected with the lower longitudinal bars. The problems such as small span and poor shear resistant bearing capacity and ductility of a traditional reinforced concrete beam are effectively relieved, and the shear resistant bearing capacity and ductility of a common reinforced concrete beam are improved. In addition, the mechanical properties of all materials in the beam can be fully utilized, and repairability is high. The cross section size of beams of the type is smaller than the size of the common reinforced concrete beam, and the building space can be effectively saved, and therefore the building cost can be effectively saved.

Description

technical field [0001] The invention relates to the technical field of construction engineering, in particular to a novel high-performance reinforced concrete beam and a manufacturing method thereof. Background technique [0002] Ordinary reinforced concrete beams have disadvantages such as poor ductility, small span, and inability to fully utilize various materials. These shortcomings seriously hinder the development of concrete beams in the field of construction engineering. Now, in order to solve these shortcomings of ordinary reinforced concrete members, domestic experts and scholars have proposed a variety of steel concrete solid web and hollow beams, but these beams have some defects. For example: slippage between concrete and section steel, welding stress and deformation caused by welding, shear brittle failure, poor ductility and other issues. Contents of the invention [0003] The technical problem to be solved by the present invention is: in order to better sol...

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is: in order to better solve the problems of ordinary reinforced concrete beams such as poor ductility, small span, and inability to fully utilize various materials, the present invention makes full use of the mechanical properties of the materials used to provide a simple construction, A new type of high-performance reinforced concrete beam with good mechanical properties and its manufacturing method to overcome the deficiencies in the prior art

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