Steel and concrete combined connecting piece with changeable dual column caps

A technology for connecting parts and concrete, applied in bridge parts, bridges, buildings, etc., can solve the problems of high rigidity, disadvantage, and large support pressure of welding studs, and achieve the effects of replacement, convenient construction and uniform shear force distribution.

Inactive Publication Date: 2014-10-15
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, due to the consolidation of the cylindrical head welding stud with steel, and the overall rigidity of the welding stud is relatively large, the shrinkage and creep of concrete and other effects make the force of the welding stud connection extremely unfavorable, and the support pressure near the root of the cylindrical head is relatively large

Method used

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  • Steel and concrete combined connecting piece with changeable dual column caps
  • Steel and concrete combined connecting piece with changeable dual column caps
  • Steel and concrete combined connecting piece with changeable dual column caps

Examples

Experimental program
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Embodiment

[0020] like figure 1 and figure 2 As shown, a replaceable connecting piece with double column heads combined steel and concrete, the connecting piece 3 is penetrated in the installation hole of the steel mother plate 2, and serves as a shear force connecting piece on the joint surface of the steel mother plate 2 and the concrete 1 . The connecting piece includes a rod body 5 and a nut 7 , the upper end of the rod body 5 is provided with an end welding nail cap 4 , and the middle part of the rod body 5 is provided with a middle column head 6 . The connection structure between the connector and the steel plate is as follows: image 3 As shown, the part above the middle stigma 6 on the rod body is smooth, and the part below the middle stigma 6 is pierced in the installation hole of the steel mother plate 2, and is provided with threads. 6 Cooperate up and down to clamp the rod body 5 of the connector 3 on the steel mother plate 2.

[0021] The invention discloses a replaceabl...

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PUM

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Abstract

The invention relates to a steel and concrete combined connecting piece with changeable dual column caps. The connecting piece is formed in a mounting hole of a steel mother plate in a penetrating manner and is used as a shear connecting piece of the steep mother plate and a concrete bonding surface; the connecting piece comprises a rod body and a screw cap; an end part welding stud cap is arranged at the upper end of the rod body; a middle column cap is arranged in the middle of the rod body; the rod body at the lower part of the middle column cap is arranged in the mounting hole of the steel mother plate in the penetrating manner; the nut is arranged at the lower part of the rod body and is matched with the middle column cap for clamping the rod body on the steel mother plate. Compared with the prior art, the steel and concrete combined connecting piece has the advantages of being uniform in stress distribution, convenient to use and replace, capable of reducing the influence of concrete shrinkage and creep and temperature on a combined structure and the like.

Description

technical field [0001] The invention relates to a connecting piece, in particular to a replaceable connecting piece with double column heads combined with steel and concrete. Background technique [0002] The mechanical properties of steel and concrete composite structures are not only affected by their own material properties, but also have a great relationship with the connection form of the joint surface. There are many kinds of connection forms, which can be roughly divided into bonding type, adhesive type, friction type and connector form. Commonly used steel-concrete composite structure connectors include cylindrical head welding stud connectors and perforated plate connectors, among which cylindrical head welding stud connectors are one of the most commonly used connectors. Handstand, sidestand, etc. [0003] The durability of completed bridges has attracted more and more attention. Steel corrosion and concrete cracking are the main problems affecting durability. Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/41E01D19/00
Inventor 刘玉擎辛灏辉
Owner TONGJI UNIV
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