Fabricated composite bridge surface system of U-shaped bolt connecting parts with adjustable screw pitch

A connector and assembly technology, applied in the direction of bridges, bridge parts, bridge construction, etc., can solve the problems of large welding workload, low efficiency, complex process, etc., and achieve the effect of optimizing the overall mechanical performance

Pending Publication Date: 2019-07-05
SUZHOU UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Among them, the bending bar connector was used the earliest, and its production and construction are relatively simple. However, because only the tensile strength of the bending bar is used to resist the shear force, the direction of the shear force is single, and the effect is poor.
Channel steel shear connectors have better shear resistance, but the amount of work is relatively large
Stud shear connectors are the most widely used. Studs are suitable for factory production. On-site installation and welding workload is heavy, the process is complicated, the efficiency is low, and the construction quality is not easy to guarantee

Method used

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  • Fabricated composite bridge surface system of U-shaped bolt connecting parts with adjustable screw pitch
  • Fabricated composite bridge surface system of U-shaped bolt connecting parts with adjustable screw pitch
  • Fabricated composite bridge surface system of U-shaped bolt connecting parts with adjustable screw pitch

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Embodiment Construction

[0031] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0032] like Figure 9 As shown, a prefabricated composite bridge deck system with adjustable U-bolt connectors, including U-bolt shear connectors and I-shaped steel beams 7, along the length direction of the I-shaped steel beams 7 at intervals U-bolt shear connectors are arranged on the upper flange plate at a certain distance, and concrete is poured on the upper flange plate of the I-beam 7 to form a concrete bridge deck 12. In this embodiment, the concrete bridge deck 12 One side of the bridge deck is provided with a concrete bridge deck slab edge occlusal part 16, which can be used to connect other parts of the concrete bridge deck 12, and the concrete bridge deck 12 is hoisted on the cover beam 14 above the pier 13 to form a steel-concrete assembled bridge deck system.

[0033] The U-shaped bolt shear connector is composed of a...

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Abstract

The invention discloses a fabricated composite bridge surface system of U-shaped bolt connecting parts with the adjustable screw pitch. The fabricated composite bridge surface system includes the U-shaped bolt shearing force connecting parts and an I-shaped steel beam, wherein the U-shaped bolt shearing force connecting parts are arranged on an upper frange plate of the I-shaped steel beam at intervals in the longitudinal direction of the I-shaped steel beam, concrete is poured on the upper frange plate on the I-shaped steel beam to form a concrete bridge surface panel, the concrete bridge surface panel is hoisted on a cover beam above a bridge pier, and thus a steel mixed-assembly fabricated composite bridge panel system is formed. According to the structural system, the effects that mounting errors are reduced, and connecting part initial rigidity is improved are achieved, thus the bearing capacity in the fabricated composite bridge panel system can be optimized, prefabricating and direct assembling can be achieved, convenience and fastness are achieved, and the construction progress is fast.

Description

technical field [0001] The invention relates to the technical field of bridge engineering, in particular to an assembled composite bridge deck system with adjustable bar distance U-shaped bolt connectors. Background technique [0002] In the field of civil engineering, shear connectors are the key parts of steel-concrete composite structures, especially for steel-concrete composite bridge decks. Specifically, shear connectors can resist the longitudinal shear forces on the superimposed faces of the concrete slab and steel beam so that the two cannot slip. At the same time, the shear connection resists the "pick-up force" that tends to separate the concrete slab from the steel beam. Therefore, what kind of shear connectors to adopt and arrange is the key to the overall performance of the composite structure. [0003] At present, there are many forms of shear connectors, which are divided into rigid connectors and flexible connectors. The traditional shear connectors mainly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/12
CPCE01D19/12E01D19/125
Inventor 黎明罗云标孙国华张硕硕
Owner SUZHOU UNIV OF SCI & TECH
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