Connecting structure of inverted-T-shaped bent cap and main beam

Abstract

The invention relates to a connecting structure of an inverted-T-shaped bent cap and a main beam, and relates to the technical field of bridge construction. A pouring space is formed between the inverted-T-shaped bent cap and the main beam; the connecting structure comprises a pavement layer, a tensile layer and a transition layer, wherein the pavement layer is paved on the main beam; the tensile layer is used for being filled in the pouring space, and the top end of the tensile layer is connected with the pavement layer; the transition layer is used for being filled in the pouring space, the top end of the transition layer is connected with the bottom end of the tensile layer, and the bottom end of the transition layer is used for being pressed on the inverted-T-shaped bent cap; a gap is formed in the transition layer, and one end of the gap extends to the top end of the transition layer. The gap is formed in the transition layer, stress is concentrated to the gap in advance, the transition layer can be firstly damaged in the process that the main beam is pulled and deflected, the structure of the main beam is not affected by damage of the transition layer, and thus the transition layer plays a role in protecting the main beam.

Description

technical field [0001] The application relates to the technical field of bridge construction, in particular to a connection structure between an inverted T-shaped cover beam and a main beam. Background technique [0002] In recent years, with the needs of economic development and urban construction, municipal bridges have been built on a large scale. Because some municipal bridges have high requirements for bridge clearance, and the structure of ordinary cover beam + main beam is difficult to meet the requirements, therefore, the structural form of inverted T-shaped cover beam + main beam came into being. The form of inverted T-shaped cover girder + main girder can effectively reduce the clearance of the bridge, but it also brings problems such as large expansion joint gaps at the top of the main girder pier, difficulty in continuous bridge deck construction, and poor bridge deck smoothness. [0003] In related technologies, the traditional asphalt concrete bridge deck cont...

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Problems solved by technology

[0004] The embodiment of the present application provides a connection structure between the inverted T-shaped cover beam and the main beam to solve the problems of poor waterproofness, easy blockage by sundries, and high cost in the related art that uses a steel expansion joint structure as the bridge deck transition.

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