A new construction method of hybrid combined beam cable-stayed bridge

A construction method and hybrid technology, applied in the direction of bridges, bridge construction, erection/assembly of bridges, etc., can solve the problems of poor adaptability of bridges, troublesome assembly and disassembly, etc., to avoid troubles of assembly and disassembly, good economic benefits, and saving The effect of renting construction costs

Inactive Publication Date: 2011-12-21
ZHONGTIE MAJOR BRIDGE RECONNAISSANCE & DESIGN INST
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Problems solved by technology

This kind of bridge deck crane is fixed on the steel girder in the center of the bridge deck during operation, and can walk f...

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  • A new construction method of hybrid combined beam cable-stayed bridge
  • A new construction method of hybrid combined beam cable-stayed bridge
  • A new construction method of hybrid combined beam cable-stayed bridge

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Embodiment Construction

[0023] The invention transports the mid-span steel girder members and the prefabricated concrete bridge deck of the cable-stayed bridge from the ground to the mid-span via the approach bridge and the side span of the main bridge by means of a beam transport vehicle. The truck crane also moves from the ground through the approach bridge and the side span of the main bridge to the front end of the completed combined beam in the mid-span, and lifts the components on the girder truck for cantilever construction. Bridge, and then construct the wet joints of the bridge deck to form the joint beam structure of this section. There is also a work of hanging cable-stayed cables and carrying out tensioning in the middle, so that it goes round and round until the construction of the main structure of the cable-stayed bridge is completed.

[0024] Describe the present invention in detail below with reference to accompanying drawing,

[0025] refer to figure 1 , 2 , 3, the concrete steps ...

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Abstract

The invention relates to a brand-new construction method of a mixed combined girder cable-stayed bridge. After the construction of the main tower, auxiliary piers, side piers, main bridge side span concrete beams and approach bridges, the mid-span steel girder members and prefabricated concrete decks of the cable-stayed bridges are transported from the ground via the approach bridges and main bridge side spans to Midspan. The truck crane also moves from the ground through the approach bridge and the side span of the main bridge to the front end of the completed combined beam in the mid-span, and lifts the components on the girder truck for cantilever construction. The bridge is hung with stay cables and tensioned for the first time. Construct the wet joints of the bridge deck, form the mid-span combined beam of this section, and repeat the construction until the main structure of the cable-stayed bridge is completed, and the bridge deck and the auxiliary structure of the main tower are constructed. The invention adopts the automobile crane, which can adapt to the construction of the wide bridge, and is convenient and flexible in use, and saves labor;

Description

technical field [0001] The invention belongs to the field of bridge construction engineering and relates to a construction method of a brand-new hybrid combined beam cable-stayed bridge. Background technique [0002] In recent years, a large number of transportation infrastructures have been built in my country, and various cable-stayed bridges across rivers, straits, highways, railways and other terrains have emerged continuously, requiring continuous innovation and development of construction methods for cable-stayed bridges to meet the needs of various construction situations . [0003] The construction method of a cable-stayed bridge mainly refers to the construction method of its main girder, because the construction method of the main tower and cable-stayed cables is relatively fixed. When the main girder adopts the concrete girder, the construction methods mainly include the cast-in-place method of the bracket, the cast-in-place method of the cantilever hanging basket...

Claims

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Application Information

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IPC IPC(8): E01D21/10
Inventor 徐恭义梅新咏程应刚张云昭华敬华王欣德汪晶龚俊谢波朱军彭振华王庆曾
Owner ZHONGTIE MAJOR BRIDGE RECONNAISSANCE & DESIGN INST
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