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Bolt connection-based rapid assembling precast rectangular concrete filled steel tube bridge pier

A rectangular steel pipe and concrete technology, which is applied in the direction of erecting/assembling bridges, bridges, bridge parts, etc., can solve the problems of less research and development and application of steel pipe concrete, achieve good compression resistance, save prefabrication costs, and reduce traffic delays.

Active Publication Date: 2016-07-06
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the research and development and application of CFST in bridge piers are still very few.

Method used

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  • Bolt connection-based rapid assembling precast rectangular concrete filled steel tube bridge pier
  • Bolt connection-based rapid assembling precast rectangular concrete filled steel tube bridge pier
  • Bolt connection-based rapid assembling precast rectangular concrete filled steel tube bridge pier

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Effect test

Embodiment Construction

[0024] The following is attached Figure 2.1 - attached Figure 4 , to further describe the specific embodiments of the present invention.

[0025] Step 1: Processing the prefabricated steel pipe concrete segment (3), the connecting plate (4), and the embedded node (6), specifically including the following steps:

[0026] 1) Prefabricated steel pipe concrete section (3), the prefabricated steel pipe concrete section (3) is manufactured in the factory, the plates are welded into rectangular steel pipes, and the welds should be groove penetration welds. Process reserved bolt holes and core-through bolt holes on the steel pipe, align the preset nut (14) with the axis of the reserved bolt hole and then fix it by spot welding. The end of the nut that is not spot welded to the inner wall of the steel pipe is made of sealing material (14 ) for sealing, set the PVC pipe (15) at the position of the core bolt hole, pass the core bolt (8) through the PVC pipe (15) and tighten it for te...

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Abstract

The invention discloses a bolt connection-based rapid assembling precast rectangular concrete filled steel tube bridge pier, and belongs to the field of bridge engineering. The bolt connection-based rapid assembling precast rectangular concrete filled steel tube bridge pier comprises precast rectangular concrete filled steel tube sections, pre-buried nodes, connecting plates, high-strength bolts and core penetration bolts; each precast concrete filled steel tube section consists of a steel tube section, concrete, reserved core penetration bolt hole channels, reserved bolt holes, precast screw caps, a sealing material and PVC (Polyvinyl Chloride) tubes; each pre-buried node consists of a precast rectangular concrete filled steel tube section, a foot plate, outside-stiffened ribs and anchor bolts; bolt holes and core penetration bolt holes are formed in each connecting plate according to bolt design positions; adjacent precast concrete filled steel tube sections are connected with each other by the connecting plates, the high-strength bolts and the core penetration bolts. The bolt connection-based rapid assembling precast rectangular concrete filled steel tube bridge pier has the characteristics of high anti-pressure and anti-shear bearing capacity, excellent anti-seismic property, easiness in factory production, convenience and rapidness in site operation, energy conservation, environmental friendliness and the like.

Description

technical field [0001] The invention belongs to the field of bridge engineering, and in particular relates to a prefabricated section-assembled steel pipe concrete bridge pier. Background technique [0002] One of the main challenges that the current urban bridge construction is facing is that in addition to the safety and durability of the bridge structure, the owners and residents also hope to minimize the disturbance to the surrounding traffic during the construction of the bridge structure and shorten the traffic jam time caused by the bridge construction. Reduce various noises generated by engineering transport vehicles and construction. These requirements have promoted the development of bridge engineering industrialization technology, among which prefabricated assembly technology is produced under this background, segmental prefabricated assembly technology provides a favorable solution for the construction of fast, efficient, safe and durable urban bridge engineering...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/02E01D21/00
CPCE01D19/02E01D21/00E01D2101/268
Inventor 贾俊峰赵建瑜张强韩强杜修力
Owner BEIJING UNIV OF TECH
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