High-toughness fiber concrete beam

Abstract

The invention discloses a high-toughness fiber concrete beam. The high-toughness fiber concrete beam comprises a connecting part and a fiber concrete pouring body; supporting rods are inserted into the four corners of the connecting part; the connecting part comprises a rectangular installing frame, a first inserting pipe is arranged in the installing frame in a penetrating manner, and the first inserting pipe is hinged to the installing frame through a pin shaft; a limiting plate is welded to one side of the installing frame and provided with an arc-shaped limiting hole, and a pin column is welded to the first inserting pipe, penetrates through the limiting hole and is slidably connected with the limiting hole; and the supporting rods are provided with circular installing holes connectingrods are inserted into the installing holes, and a first frame, a second frame and a third frame are connected among the connecting rods. According to the high-toughness fiber concrete beam, the cross section of the concrete beam is evenly provided with the connecting rods and the frames from interior to exterior, therefore, the deformation resistance is high, and the load resistance is high; andfiber concrete is adopted as a pouring material, therefore, the tensile strength is high, and the limit elongation is large.

Description

technical field [0001] The invention relates to the technical field of construction, in particular to a strong and tough fiber concrete beam. Background technique [0002] In recent years, with the development of social economy, the urban agglomeration has expanded and larger, and more and more high-rise buildings have been built. Sudden traffic accidents and accidental explosion terrorist attacks may cause the building structure to bear strong dynamic loads during its service life. When ordinary reinforced concrete members are subjected to strong dynamic loads, local and overall deformation or damage will occur. Such as projectile impact, explosion impact, or vehicle impact may cause concrete structures to undergo penetration, collapse, penetration, and punching damage, and eventually lead to partial or overall collapse of the building structure. [0003] However, for the problems of insufficient bearing capacity and excessive deformation of ordinary concrete structural m...

AI Technical Summary

Problems solved by technology

Such as projectile impact, explosion impact or car impact may cause concrete structures to undergo penetration, collapse, penetration and punching damage, and eventually lead to partial or overall collapse of the building structure

[0003] However, for the problems of insufficient bearing capacity and excessive deformation of ordinary concrete structural members under dynamic loads, traditional methods generally only use higher-strength concrete, increase reinforcement ratios, or take corresponding structural measures, but are limited to ordinary concrete structural members. In reinforced concrete members, the coordination ability of concrete deformation is insufficient and the binding force between the steel skeleton and concrete is limited. Simply using high-strength concrete cannot fully improve the ability of members to resist dynamic loads.

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