Supporting method of steel bridge beam and beam-type steel bridge

Abstract

The invention discloses a supporting method of a steel bridge beam and a beam-type steel bridge utilizing the same. A bridge supporting part is of a steel structure, has the advantages of light deadweight, high bearing strength and small contraction distortion adapting to the influence of temperature change, can be produced and manufactured in a plant, and is high in installation accuracy; the bottom support of the beam-type steel bridge is a fixed wheel, has the advantages of low friction, large bearing capacity, convenience in replacement and the like, and can better realize axial displacement caused by various reasons; the top of a bridge abutment and a bridge pier is provided with a large groove, so as to effectively prevent the slippage of the beam-type steel bridge; and in order to prevent a bridge bearing from lateral movement, a simply support side wheel is arranged between the lateral of the bridge bearing and the large groove and used as a lateral limiting device.

Description

technical field [0001] The invention relates to a supporting method of a steel bridge and a beam type steel bridge, belonging to the technical field of bridges. Background technique [0002] Beam bridge is one of the more common bridge types at present. It is a bridge that uses beams or trusses as the main load-bearing structure. Under the action of vertical load on the superstructure, the fulcrum only produces vertical reaction force. At present, large and medium bridges generally adopt steel girder bridges and prestressed concrete girder bridges. Prestressed concrete girder bridges generally use concrete girders to support the bridge abutment and piers, but this type of concrete girder has its own weight and is easily affected by temperature during pouring. Axial displacement caused by temperature changes, so the performance requirements for foundation pressure and settlement adaptation are high. Therefore, compared with prestressed concrete girder bridges, girder steel b...

AI Technical Summary

Problems solved by technology

However, due to the two-way driving of the bridge, the impact force generated by the vehicle on the steel bridge when driving on the bridge is two-way. cause damage

[0005] To sum up, the main problems of the existing steel bridge support methods and girder steel bridges are that the bearing capacity of the support is insufficient, the vertical displacement of the support is relatively large, the replacement of the support is inconvenient, and the support at the fixed end is difficult to withstand impacts. Counteracts impact forces, etc. by axial deformation

Therefore, the existing technical solutions are not ideal

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