A composite t-beam with transversely assembled corrugated steel webs and its construction method

Abstract

The invention discloses a laterally spliced combination T beam bridge with wavy steel webs. The laterally spliced combination T beam bridge comprises a plurality of prefabricated T beam units (1) and cross beams 5, wherein a porous continuous combination T beam is formed through the longitudinal connection of adjacent prefabricated T beam units by the cross beams 5, and the lower end surfaces of top slab wet joints (2) of two adjacent prefabricated T beam units are connected with top slab lower edge steel plates (2-1). The invention further discloses a construction method of the laterally spliced combination T beam bridge. The construction method comprises the following construction steps: constructing bridge piers, bridge abutment pier bodies (6) and bridge abutment cap beams (4), erecting trestles (3) at the outer sides of the bridge piers, and installing the prefabricated T beam units at the trestles; fixing the top slab lower edge steel plates (2-1) to which studs are connected at the parts of the top slab wet joints of two adjacent prefabricated T beam units, and using the top slab lower edge steel plates as support formworks to pour top slab wet joint concrete (2-3); longitudinally pouring pier top cross beams or installing prefabricated pier top cross beams (5) on the trestles, and connecting all spans of prefabricated T beam units into the porous continuous T beam. The use quantity of the trestles and the formworks is effectively reduced, the cost is reduced, traffic on roads below the bridge is not interrupted in the construction process, and the scenery requirement of the urban bridge is met.

Description

technical field [0001] The invention belongs to the technical field of bridges for highways and railways, and mainly relates to a T-beam with transversely assembled corrugated steel webs and a construction method. Background technique [0002] As a new type of steel-concrete composite structure, prestressed concrete beam with corrugated steel web makes full use of the advantages of high compressive strength of concrete and high shear strength of corrugated steel web, effectively combining steel and concrete , which improves the use efficiency of materials, and is an economical, reasonable and efficient structural form. [0003] The prefabricated transversely spliced ​​concrete T-beam is one of the most common upper bridge structures at present, and it has many advantages. However, due to its high self-weight of prestressed concrete T-beams, it has high requirements for transportation and erection equipment. To ensure the quality of concrete pouring, there will be hazards s...

AI Technical Summary

Problems solved by technology

The problems of this construction method are: the cover beam needs to be disposed of at the bridge pier, and the construction of the cover beam on the top of the pier is difficult, which affects the construction progress and increases the project cost; and the shape of the bridge pier is single, and the bridge landscape effect is poor

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