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Fabricated bridge double-column pier system capable of recovering functions after earthquake and construction method

A function-recovery, prefabricated technology, used in the erection/assembly of bridges, bridges, bridge parts, etc., to solve problems such as difficult-to-control earthquake damage and damage

Active Publication Date: 2020-10-23
LANZHOU UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In previous major earthquakes, the earthquake damage of the double-column pier system of bridges was generally serious, indicating that the traditional double-column pier design is difficult to control its earthquake damage and destruction

Method used

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  • Fabricated bridge double-column pier system capable of recovering functions after earthquake and construction method
  • Fabricated bridge double-column pier system capable of recovering functions after earthquake and construction method
  • Fabricated bridge double-column pier system capable of recovering functions after earthquake and construction method

Examples

Experimental program
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Effect test

Embodiment Construction

[0041] Such as Figure 1~Figure 6 As shown, the prefabricated bridge double-column pier system with recoverable function after the earthquake includes: pile column 1, first pier column 2, second pier column 3, first cover beam 4, second cover beam 5, double-layer composite retaining Block 6, lead rubber bearing 7, shock-absorbing and energy-dissipating cable 8, self-resetting anti-buckling support 9, pier node area 10, hole slot 11, magnetite 12, prestressed tendon 13, self-compacting concrete 14, thin wall Steel pipe 15, cross-shaped steel plate 16, top steel plate 17, SMA plate 18, waste tire or rubber fragment 19, steel box 20, inner steel plate group 21, outer steel plate group 22, anchor 23, first steel plate 24, second steel plate 25. Steel spring 26, SMA short rod 27, first cable section 28, second cable section 29, third cable section 30, fourth cable section 31, transfer steel plate 32, high-strength spring 33, SMA long rod 34, PVC pipe 35.

[0042] A hole 11 is res...

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Abstract

The invention discloses a fabricated bridge double-column pier system capable of being recovering functions after an earthquake and a construction method. The fabricated bridge double-column pier system comprises a pile column, a first pier column, a second pier column, a first bent cap, a second bent cap, a double-layer combined stop block, a lead core rubber support, a shock absorption and energy dissipation cable, a self-resetting buckling-restrained brace and a pile pier joint area. The first pier column and the first bent cap as well as the second pier column and the second bent cap are internally connected by adopting prestressed tendons and externally connected by adopting a welding mode; transition between the first pier column and the pile column and transition between the secondpier column and the pile column are achieved through the pile pier joint area, and self-resetting buckling-restrained braces are adopted for reinforcement. Shock absorption and energy dissipation cables are arranged between the first pier column and the second pier column in a crossed mode, the first bent cap and the second bent cap are connected through a lead core rubber support, and double-layer combined check blocks are arranged on the top faces of the beam ends of the first bent cap and the second bent cap. The invention relates to the bridge double-pier quakeproof system, belongs to thefield of bridge engineering, is convenient to construct and has a post-earthquake recoverable function.

Description

technical field [0001] The invention relates to a bridge double-column pier system, in particular to an assembled bridge double-column pier system with recoverable functions after an earthquake, and belongs to the field of bridge engineering. Background technique [0002] The traditional bridge double-column pier system is composed of pier columns, cap beams and transverse beams. The construction method of cast-in-place is not only time-consuming and labor-intensive, but also pollutes the environment. More importantly, the earthquake damage is serious during earthquakes. The damage mechanism is complex and the damage forms are diverse. With the rapid development of my country's economy, prefabricated bridges have shown good development prospects in the field of bridge engineering in my country, such as convenient construction, high efficiency, good quality, and green environmental protection. There are few applications and limited technology. When the double-column pier sys...

Claims

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Application Information

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IPC IPC(8): E01D21/00E01D19/02E01D19/04E01D2/00E01D19/00E01D101/28
CPCE01D2/00E01D19/00E01D19/02E01D19/041E01D21/00E01D2101/28
Inventor 秦洪果李军李萍石岩成昭焦应乾王卫
Owner LANZHOU UNIVERSITY OF TECHNOLOGY
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