Self-resetting guide plate structure suitable for seamless bridge and method thereof

A self-resetting, seamless bridge technology, used in bridges, bridge parts, bridge construction and other directions, can solve the problems of difficult maintenance, high maintenance costs, damage to bridge expansion joints, etc., to reduce damage and damage, improve lateral force resistance, The effect of high power consumption

Pending Publication Date: 2020-04-03
FUZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention improves the above problems, that is, the technical problem to be solved by the present invention is that with the increase of traffic pr

Method used

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  • Self-resetting guide plate structure suitable for seamless bridge and method thereof
  • Self-resetting guide plate structure suitable for seamless bridge and method thereof
  • Self-resetting guide plate structure suitable for seamless bridge and method thereof

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Embodiment Construction

[0020] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] like Figure 1~4 As shown, a self-resetting leading plate structure suitable for seamless bridges includes an abutment 2, a main girder 1 on the abutment and a leading plate fixedly connected with the main beam. The leading plate is L-shaped, and the The guide plate includes a horizontal plate 3 fixedly connected to the main beam and a vertical plate 4 extending downward from one end of the horizontal plate away from the main beam. The lower end of the vertical plate 4 is fixed with an enlarged foundation 5, and inside the vertical plate 4 Unbonded prestressed tendons 6 are provided, the upper ends of the unbonded prestressed tendons are anchored to the top of the lead plate, and the lower ends of the unbonded prestressed tendons are anchored to the bottom of the enlarged foundation.

[0022] The upper surface of the guide pla...

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PUM

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Abstract

The invention provides a self-resetting guide plate structure suitable for a seamless bridge and a method thereof. The self-resetting guide plate structure comprises a bridge abutment, a main beam lapped on the bridge abutment and a guide plate fixedly connected with the main beam, the guide plate is L-shaped; the guide plate comprises a horizontal plate fixedly connected with the main beam and avertical plate extending downwards from one end, deviating from the main beam, of the horizontal plate; an expanded foundation is fixed at the lower end of the vertical plate; unbonded prestressed tendons are arranged in the vertical plates; the upper ends of the unbonded prestressed tendons are anchored to the tops of the guide plate, the lower ends of the unbonded prestressed tendons are anchored to the bottom of the expanded foundation. By means of the flexibility of the vertical plate of the L-shaped guide plate, the self-resetting capacity and the anti-overturning capacity of the guide plate under the earthquake action are provided through the unbonded prestressed tendons.

Description

technical field [0001] The invention relates to a self-resetting guide plate structure and method suitable for seamless bridges. Background technique [0002] Bridge expansion joints are weak points in bridge structure design, and have become one of the difficult problems in bridge construction and maintenance. It is not only expensive but also requires long-term maintenance. Chinese designers and scholars have made a lot of valuable explorations in the mechanism, performance and materials of expansion joints, which have played a positive role in solving the problem of longitudinal deformation of bridges, but they cannot fundamentally solve the problem of the vulnerability of expansion joints. With the development of the economy and the increase of traffic pressure, the phenomenon of bridge expansion joint damage is becoming more and more serious, and the increase of maintenance cycle and maintenance cost is also increasing the pressure on the maintenance of bridge expansion...

Claims

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Application Information

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IPC IPC(8): E01D19/00E01D19/02E01D19/12
CPCE01D19/00E01D19/02E01D19/125
Inventor 黄福云何凌峰单玉麟刘征峰周志明
Owner FUZHOU UNIVERSITY
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