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CFRP plate lifting bridge with support

A technology of bridges and strips, applied in bridges, bridge parts, bridge forms, etc., can solve problems affecting the bearing capacity and durability of bridge structures, increase transportation costs, and increase structural costs, so as to reduce load bearing and improve operation benefit and reduce project cost

Pending Publication Date: 2022-05-17
CENT RES INST OF BUILDING & CONSTR CO LTD MCC GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Once the construction of the bridge structure is completed, the clearance height under the bridge will be fixed, and its shape cannot be changed. It cannot be adjusted according to the current changes in the flow of vehicles, ships and people.
For example, pedestrian bridges in urban roads, due to the limited clearance height under the bridge, when large trucks or other special vehicles need to pass, the clearance height of the pedestrian bridge is limited, so these vehicles can only choose to bypass the way to pass, which is undoubtedly Increased transportation costs
[0004] At present, steel strands are mostly used in bridge structures to provide prestressed tension. The corrosion problem of traditional steel strands or traction ropes in natural environments is becoming more and more serious, which will greatly affect the bearing capacity and durability of bridge structures. Secondly, steel strands The self-weight is relatively large, and its self-weight stress will account for most of the allowable stress, which will reduce the load-bearing efficiency
In addition, with the increase of the structure's self-weight, the cost of the structure will also be increased, and the construction difficulty will be increased.

Method used

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  • CFRP plate lifting bridge with support
  • CFRP plate lifting bridge with support
  • CFRP plate lifting bridge with support

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Embodiment Construction

[0032] To make the object, technical solution and advantages of embodiments of the present invention more clearly understood, the following embodiments and accompanying drawings, the embodiments of the present invention will be further elaborated. Herein, exemplary embodiments of the present invention and description thereof are used to explain the present invention, but not as a limitation of the present invention.

[0033] In the present invention, unless otherwise expressly specified and qualified, the term "installation", "connection", "connection", "fixed" and other terms should be understood broadly, for example, may be a fixed connection, may also be a detachable connection, or into one; may be a mechanical connection, may also be an electrical connection; may be directly connected, may also be indirectly connected by an intermediate medium, may be a connection within the two elements or the interaction of two elements. For those of ordinary skill in the art, the specific m...

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PUM

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Abstract

The CFRP plate lifting bridge with the supports comprises a main beam, bridge abutments, bridge towers and lifting devices, the two ends of the main beam are supported on the bridge abutments, and the middle of the main beam is not directly supported by the bridge towers; the lifting device is composed of a first winding device, a second winding device, a first roll shaft and a CFRP plate strip, the first winding device and the second winding device are symmetrically installed at the two ends of the main beam relative to the bridge tower, the first roll shaft is installed at the top of the bridge tower, the CFRP plate strip bypasses the first roll shaft located at the top of the bridge tower, and the two ends of the CFRP plate strip are fixed to the first winding device and the second winding device respectively; in the natural state, the two ends of the main beam are supported by the bridge abutments, and the middle of the main beam is supported by the bridge towers through the CFRP plate strips. And in a lifting state, the main beam is supported by the bridge tower through the CFRP plate strip. Lifting is conducted through the winding equipment and the CFRP plate strip traction main beam in the lifting device, the structural design is reasonable, safety is high, and the operation efficiency of urban roads or inland river traffic is improved while the original bridge structural form is kept.

Description

Technical field [0001] The present invention relates to the technical field of bridge construction, in particular to a liftable bridge, specifically to a CFRP plate belt support lifting bridge. Background [0002] With the acceleration of the modernization process, the increasingly close exchanges between cities, and the congestion of road traffic or inland traffic, how to alleviate the increasingly tense traffic pressure has become a key issue that needs to be considered at present. The infrastructure construction industry is the direction of China's vigorous development for decades, and the construction of bridge structures has accelerated the exchanges between different cities to a certain extent and improved people's living standards. According to the structural system, the bridge structure can be divided into girder bridge, arch bridge, cable-stayed bridge, suspension bridge and combination girder bridge. Further subdivided, the bridge of each structural system can be divid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D15/02E01D19/00E01D19/14E01D19/16B66D1/00B66D1/28B66C13/08
CPCE01D15/02E01D19/00E01D19/14E01D19/16B66D1/00B66D1/28B66C13/08Y02A30/60
Inventor 刘越张宏涛韦青
Owner CENT RES INST OF BUILDING & CONSTR CO LTD MCC GRP
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