A multi-girder steel-concrete composite continuous beam

Abstract

The invention discloses a steel-concrete composite continuous beam with multiple main beams, comprising a main body of main beams, wherein the top end of the main body of the main beams is connected with a bridge panel beam; the main body of main beams comprises a plurality of inverted T-shaped main beams; the bottom plate of each main beam is arranged at intervals along the longitudinal bridge direction; the webs of the main beams are arranged along the transverse bridge direction, and the webs are provided with grooves with an opening upward; two sets of sealing plate assemblies are arrangedon both sides of the each web along the longitudinal bridge direction, and the each sealing plate assembly comprise two sealing plates respectively arranged on both sides of the corresponding groove;the two sealing plates on the two adjacent main beams are connected between each other and form two rows spaced apart along the transverse direction of the bridge; two rows of sealing plates are enclosed with all the bottom plates and all the grooves to form a cavity with an opening upward and communication; and the cavity is filled with concrete.

Description

technical field [0001] The invention relates to the field of bridge engineering, in particular to a multi-girder type steel-concrete composite continuous beam. Background technique [0002] With the acceleration of urbanization in our country, the construction of municipal bridges is developing towards the goal of fast, green, environmental protection and friendliness. Lightweight, factory-like, standardized, assembled and fast-paced bridge construction is the basic requirement for realizing this goal. The multi-girder steel-concrete composite girder continuous girder bridge is one of the best construction schemes to meet the above requirements. [0003] At present, the multi-girder type steel-concrete composite continuous beam is composed of multiple I-beams. After each I-beam is manufactured in pieces in the factory, it is transported to the site for installation. The beams are connected into a whole. Such as figure 1 As shown, the top slab 10', web 11' and top slab 12'...

AI Technical Summary

Problems solved by technology

[0004] Since the structure of this continuous beam only forms a connection relationship along the longitudinal bridge direction through the bridge deck 2' on the top floor of the I-beam 1', although the I-beams 1' can withstand part of the pressure exerted by the top layer, they cannot provide sufficient pressure. The torsional rigidity guarantees the integrity and continuity of the longitudinal and transverse directions between the I-beams 1'

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