Shear force connection member for flexible welding nails of combined structure of steel and concrete

A technology of combining structures and connecting components, applied in bridge parts, building structures, buildings, etc., can solve the problems of weak shear strength of joint surfaces, large tensile stress of concrete, self-fatigue damage, etc. The effect of improving force performance and increasing pre-energizing effect

Inactive Publication Date: 2012-06-13
CHINA RAILWAY ERYUAN ENG GRP CO LTD
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Problems solved by technology

If the welding studs are arranged too densely, it may cause a large tensile stress in the concrete. If the welding studs are arranged too thinly, the shear strength of the joint surface will be weak, and the welding studs themselves are stressed, which may also lead to fatigue damage or even direct shearing.

Method used

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  • Shear force connection member for flexible welding nails of combined structure of steel and concrete
  • Shear force connection member for flexible welding nails of combined structure of steel and concrete
  • Shear force connection member for flexible welding nails of combined structure of steel and concrete

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0014] refer to figure 1 , a flexible welding stud shear connection member for steel and concrete composite structures, including a steel member 10, a concrete member 20, and a welding stud 30 welded and fixed on the steel member structure 10 and embedded in the concrete member 20, the A flexible rubber sheath 40 is provided over the root of the welding stud 30 . During construction, the welding stud 30 is welded on the steel member, and then the flexible rubber sleeve 40 is installed at the root of the welding stud 30, and then the concrete member 20 is poured on the steel member 10. After the concrete member 20 reaches the design strength, the shear force can be passed. Connectors transmit internal forces between steel and concrete members. Compared with welding studs of the same specification but without flexible rubber sleeves, this connector has ...

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Abstract

A shear force connection member for flexible welding nails of a combined structure of steel and concrete aims at effectively optimizing the arrangement scheme of the welding nails, greatly facilitates design and construction of the combined structure of the steel and the concrete and comprises steel members (10), concrete members (20) and the welding nails (30). The welding nails (30) are fixedly welded on the steel members (10) and embedded into the concrete members (20). Flexible rubber sleeves (40) are sleeved outside the root portions of the welding nails (30).

Description

technical field [0001] The invention belongs to the technical field of structural engineering, and in particular relates to a flexible welding stud shear force connection member used for steel and concrete composite structures. Background technique [0002] In the composite structure of steel and concrete, steel members and concrete members are usually connected by ordinary welding stud connectors, that is, after the welding studs are arranged on the steel members, concrete is poured on the steel members. Under the action of constant live load, concrete shrinkage and temperature, when welding studs with several diameters specified in the design code are used for layout design, the shear stiffness, shear bearing capacity and welding stud stress often appear. Mutual constraints and incoordination of forces. If the welding studs are arranged too densely, it may cause a large tensile stress in the concrete. If the welding studs are arranged too thinly, the shear strength of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/38E04B1/41E01D19/12
Inventor 袁明陈克坚朱敏任万敏任杰侯勇白琦成刘晓琴张宁王江辉徐贤德曾永平刘玉擎罗杰王希慧
Owner CHINA RAILWAY ERYUAN ENG GRP CO LTD
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