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Concrete hollow slab bridge reinforced by transverse steel beams

A hollow slab bridge and concrete technology, used in bridges, bridge parts, bridge construction and other directions, can solve the problems of bridge lateral force transmission performance decline, high requirements for equipment and hinged concrete defects, etc., to achieve easy construction quality assurance, overall High structural strength and obvious reinforcement effect

Inactive Publication Date: 2012-08-15
茅桥交通科技(东莞)有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Concrete hollow slab bridge is a bridge with multiple hollow slab longitudinal girders along the bridge direction to form a spanning structure. It has the advantages of convenient construction, low engineering cost, standardized centralized prefabrication production, and small building height. Concrete hollow slab bridges are prone to various degrees of functional and structural defects, such as concrete defects, cracks, and long-term shedding of hinge joints. At the same time, due to improper construction methods of concrete hollow slab bridges, the width of the hinge joints between the actual construction hollow slab beams is much larger than the designed one. The width of the hinge joints, after a period of operation, the hinge joints are prone to diseases, which will lead to the decline of the bridge's transverse force transmission performance, and make the bridge deck prone to longitudinal cracks along the hinge joints, which will affect the normal use of the hollow slab bridge. Plates are damaged plate by plate under force
[0003] In addition, for concrete hollow slab bridges with longitudinal cracks on the bridge deck along the hinge joints, the usual corresponding treatment measures are to eradicate the old deck and replace it with a new deck. The requirements for machinery and equipment are high, and the construction period is long, which has a great impact on traffic. The structural damage of hinge joints has not been fundamentally cured, and the hinge joints between hollow slab beams are prone to cracking again under the action of fatigue load and concentrated stress after repair, and the service life is short

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  • Concrete hollow slab bridge reinforced by transverse steel beams
  • Concrete hollow slab bridge reinforced by transverse steel beams
  • Concrete hollow slab bridge reinforced by transverse steel beams

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Embodiment Construction

[0020] figure 1 It is a structural schematic diagram of the present invention, figure 2 for figure 1 right view of the image 3 for figure 1 The enlarged view at A in the middle is shown in the figure: the concrete hollow slab bridge reinforced with transverse steel girders in this embodiment includes a bridge deck beam 1 formed by a plurality of hollow slab girders 2 arranged side by side and a bridge deck beam 1 arranged on the bridge deck. At least one stiffening beam 3 on the bottom surface of the beam 1 is used to laterally reinforce it so that the load on each hollow slab girder 2 can be transmitted laterally. For hollow slab bridges, it is enough to install one stiffening beam 3 in the middle of the span. For hollow bridges with serious hinge joint disease, three or more stiffening beams 3 can be installed according to the overall stress requirements, which can improve the bearing capacity of the bridge and avoid single-slab stress and prolong the service life of t...

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Abstract

The invention discloses a concrete hollow slab bridge reinforced by transverse steel beams. The concrete hollow slab bridge comprises a bridge deck beam constituted by arranging a plurality of hollow plate beams in parallel and at least one stiffening cross beam which is arranged on the bottom surface of the bridge deck beam and is used for transversely reinforcing the bridge deck beam so as to enable all the hollow plate beams to transversely transfer loads on the hollow plate beams, wherein the stiffening cross beam is fixedly connected with the hollow plate beams. According to the concrete hollow slab bridge reinforced by the transverse steel beams, disclosed by the invention, the overall structural strength is high, the bearing capacity of the bridge is strong, the single-plate stress can be avoided by reinforcing through the transverse steel beams, the service life of the bridge is prolonged, and the concrete hollow slab bridge has the advantages of simple structure construction, easiness in ensuring engineering construction quality, good stress performance, obvious reinforcing effect, convenience and quickness in construction, lower requirements for machines, tools and equipment required for construction and significant economic benefits, and is further conductive to popularization.

Description

technical field [0001] The invention relates to a bridge construction, in particular to a concrete hollow slab bridge reinforced with transverse steel girders. Background technique [0002] Concrete hollow slab bridge is a bridge with multiple hollow slab longitudinal girders along the bridge direction to form a spanning structure. It has the advantages of convenient construction, low engineering cost, standardized centralized prefabrication production, and small building height. Concrete hollow slab bridges are prone to various degrees of functional and structural defects, such as concrete defects, cracks, and long-term shedding of hinge joints. At the same time, due to improper construction methods of concrete hollow slab bridges, the width of the hinge joints between the actual construction hollow slab beams is much larger than the designed one. The width of the hinge joints, after a period of operation, the hinge joints are prone to diseases, which will lead to the decli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D2/00E01D19/00
Inventor 周劲宇刘大路
Owner 茅桥交通科技(东莞)有限公司
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