Beam bottom steel bar structure with steel bar protection layer thickness controlled by utilizing steel bar supporting framework

Abstract

The invention relates to the field of beam bottom steel bar structures and discloses a beam bottom steel bar structure with the steel bar protection layer thickness controlled by utilizing a steel bar supporting framework. The beam bottom steel bar structure comprises beam tensile bars located at the upper end of a beam, bearing bars located at the lower end of the beam and hoop bars fixing the beam tensile bars and the bearing bars together and further comprises the supporting framework, wherein the supporting framework is located below the beam tensile bars and is clamped and connected to the edge steel bars of a structure plate bottom layer through cushion blocks, the bottoms of the cushion blocks are supported above a beam side concrete protection layer, the diameter of the steel bar supporting framework is 18-25 mm, the length of the steel bar supporting framework is 0.5-0.9 mm, and the cushion blocks are plum blossom shaped concrete cushion blocks. The beam bottom steel bar structure is simple in structure, beam bottom cushion blocks are omitted, and the steel bar protection layer thickness is controlled by utilizing the steel bar structure.

Description

technical field [0001] The invention relates to the field of steel bar structures at the bottom of beams, in particular to a steel bar structure at the bottom of beams that uses a steel bar support frame to control the thickness of a steel bar protective layer. Background technique [0002] Beam pads are also referred to as beam pads in masonry structure textbooks, and their function is to use beam pads to expand when the local compressive strength of the masonry at the bottom of the beam end is not satisfied when the concentrated force at the beam end acts on the masonry. The contact area between the beam end and the masonry is used to reduce the compressive stress caused by the concentrated force at the beam end on the masonry. The beam pad is divided into two types: rigid and flexible. Rigidity needs to be placed directly under the beam. Rebar and cast together with the beam. In the process of concrete pouring, it often occurs that the concrete protective layer at the bo...

AI Technical Summary

Problems solved by technology

The technical problem to be solved is: the thickness deviation of the concrete cover layer at the bottom of the beam is too large due to many unstable factors when using the pad at the bottom of the beam

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