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Novel prefabricated assembled pier connecting structure and construction method thereof

A technology for prefabricated assembling and connecting structures, applied in the erection/assembly of bridges, bridges, bridge parts, etc., can solve the problems of uncontrolled pier swinging, overturning and collapse, unfavorable on-site construction replacement, etc., to achieve balanced force, speed up construction progress, and take into account The effect of practical rationality and economy

Pending Publication Date: 2022-02-11
NANJING TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current self-resetting piers need to lay prestressed tendons inside the pier, which is not conducive to on-site construction and replacement after the earthquake. At the same time, the self-resetting swaying of the pier also faces the danger of uncontrolled swinging and overturning.

Method used

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  • Novel prefabricated assembled pier connecting structure and construction method thereof
  • Novel prefabricated assembled pier connecting structure and construction method thereof
  • Novel prefabricated assembled pier connecting structure and construction method thereof

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Embodiment Construction

[0033]Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0034] like figure 1 As shown, a novel prefabricated assembled pier connection structure and construction method thereof, the main structure of the invention includes: assembled pier 1, cap 2, concrete pile 3, steel corbel structure 4; The reserved groove 8 connected with the concrete pile 3, the first prestressed pre-embedded pipe 10 is reserved inside the cap 2, the concrete pile 3 is provided with a steel corbel structure 4, and the steel corbel structure 4 is reserved inside There is a second prestressed pre-embedded pipeline 11, and unbonded prestressed tendons 5 for connecting the bearing platform 2 and the steel corbel structure 4.

[0035] like figure 1 and figure 2 As shown, the assembled pier 1 is connected to the cap 2 through a semi-grouting sleeve 6, and a high-strength mortar seat layer 7 is provided at the bottom of the assembled pier 1...

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PUM

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Abstract

The invention provides a novel prefabricated assembled pier connecting structure and a construction method thereof. The connecting structure comprises an assembled pier, a plurality of semi-grouting sleeves are arranged in the assembled pier, the multiple semi-grouting sleeves are used for connecting longitudinal steel bars located in the assembled pier and reserved steel bars located in a bearing platform, a plurality of concrete piles are in contact connection with the lower part of the bearing platform, a plurality of steel corbel structures are arranged on the plurality of concrete piles, and unbonded prestressed tendons are arranged on the plurality of steel corbel structures. The invention further provides a construction method of the connecting structure. The construction method comprises the steps of assembly prefabrication, bottom construction, prestressed tendon installation and hoisting. The bridge can be subjected to the self-resetting effect of the prestressed tendons in the two horizontal directions, the anti-seismic performance of the bridge in the longitudinal bridge direction and the transverse bridge direction is effectively improved, damage to the bridge piers can be reduced while the anti-seismic performance of the bridge can be improved, and meanwhile the repairability of the bridge after an earthquake can be greatly improved.

Description

technical field [0001] The invention relates to the field of bridge engineering, in particular to a novel prefabricated assembled pier connection structure and a construction method thereof. Background technique [0002] With the continuous development of modern cities, the demand for bridge construction is also increasing. As an important link connecting cities, bridges play a vital role. However, earthquakes frequently occur in our country, which makes bridges face serious earthquake threats. The current seismic design method of bridges at home and abroad mainly uses the ductility of bridge piers for seismic design, allowing bridge piers to enter plasticity under strong earthquakes and form plastic hinges, so bridge piers may be seriously damaged and produce large plastic deformation. permanent residual displacement. However, past earthquake disasters have shown that it is far from enough to only aim at the safety of life and the anti-collapse performance of bridges. E...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/02E01D21/00
CPCE01D19/02E01D21/00
Inventor 徐积刚沈子森徐伟杰
Owner NANJING TECH UNIV
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