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An asymmetric construction method and control method for the main truss of a long-span flexible suspension bridge

A main truss and long-span technology, applied in the direction of suspension bridges, bridges, bridge construction, etc., can solve the problem that the main truss cannot be hoisted symmetrically, achieve bridge engineering technology satisfaction, improve management level, and save the hoisting period

Active Publication Date: 2020-07-31
CENT & SOUTHERN CHINA MUNICIPAL ENG DESIGN & RES INST CO LTD
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Problems solved by technology

[0009] Aiming at the problems existing in the prior art, the present invention provides an asymmetric construction method and control method for the main truss of a large-span flexible suspension bridge, which solves the technical problem that the main truss cannot be hoisted symmetrically due to the limitation of the construction site, and has the advantages of low investment and fast construction. Fast, construction safety and other characteristics

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  • An asymmetric construction method and control method for the main truss of a long-span flexible suspension bridge
  • An asymmetric construction method and control method for the main truss of a long-span flexible suspension bridge
  • An asymmetric construction method and control method for the main truss of a long-span flexible suspension bridge

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Embodiment Construction

[0048] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0049] Such as figure 1 As shown, the asymmetric construction device for the main truss of a large-span flexible suspension bridge provided by the embodiment of the present invention includes: tower column 1, ground anchor 2, main cable 3, boom 4, main truss 5, tower platform 11, hoist and ground anchor 12. Construction load-bearing cable 13, cable pulley hoist running rope 14, hoisting pulley hoist running rope 15, cable pulley 16, hoisting pulley block 17, steering pulley 18, construction basket 19, main truss launching hoisting platform 20.

[0050] figure 1 The span parameters of the medium and long-span flexible su...

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Abstract

The invention belongs to the construction field of oil and gas pipeline suspension bridges, and discloses an asymmetric construction method and a control method for a main truss of a long-span flexible oil and gas pipeline suspension bridge, and solves the technical problem that the main truss cannot be symmetrically hoisted due to the limitation of the construction site, and features low investment, high construction speed and safety. In the asymmetrical hoisting construction of long-span flexible suspension bridge, the construction method and construction control technology must be used at the same time, so that the bridge construction can reach the maximum bridge design state and ensure the safety of the construction process. The invention successfully solves the technical problem thatthe main truss of the long-span flexible suspension bridge can not be symmetrically hoisted due to the limitation of the construction site, and ensures the safety of the construction process state through the control technology, the completed state of the bridge is completely consistent with the design state as far as possible, and the bridge engineering technology meets the requirements of the corresponding specifications.

Description

Technical field [0001] The invention belongs to the construction of a suspension bridge for oil and gas pipelines, and particularly relates to an asymmetric construction method and a control method for the main truss of a large-span flexible suspension bridge. Background technique [0002] At present, the existing technology commonly used in the industry is as follows: [0003] Suspension bridge is a bridge type with reasonable structure. It can give full play to the performance of cable tension, beam bending, and tower compression members. It is one of the most competitive bridge types among long-span bridges. In the highway municipal industry, suspension bridges are commonly used bridge types. At present, the suspension bridge main truss hoisting method in the highway and municipal industries adopts the following two more mature construction methods: (1) the symmetrical hoisting method at both ends to the mid-span closing method; (2) the symmetrical hoisting method starting from...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D21/00E01D11/02
CPCE01D11/02E01D21/00
Inventor 张勤詹胜文蔡伟民曾靖
Owner CENT & SOUTHERN CHINA MUNICIPAL ENG DESIGN & RES INST CO LTD
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