Wind resisting system of pipeline cable-suspended structure

A technology that spans structures and pipelines. It is used in suspension bridges, bridge applications, buildings, etc., and can solve the problems of difficult layout of wind-resistant cables, high engineering costs, and inability to provide lateral and vertical stiffness.

Pending Publication Date: 2019-02-05
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the past engineering design, the wind-resistant cable system with a large angle with the horizontal plane was generally adopted or the bridge deck structure with high rigidity was adopted. However, due to the influence of the terrain of the canyon, the conventional wind-resistant

Method used

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  • Wind resisting system of pipeline cable-suspended structure
  • Wind resisting system of pipeline cable-suspended structure
  • Wind resisting system of pipeline cable-suspended structure

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Embodiment

[0040] The designed main span of the pipeline suspension cable spanning project is 360m, the anchor span on the south bank is 109.9m, the anchor span on the north bank is 75.7m, and the total length is 545.6m. The rise-span ratio of the main cable is 1 / 10, the elevation projection span of the horizontal wind-resistant cables is 360m, the total width of the plane projection is 54.6m, and the rise-span ratio of the horizontal wind-resistant cables is 1 / 15. Crossing the south side, that is, the left main cable and the wind cable share the anchor pier, the left bridge tower is provided with the wind cable lateral support, that is, the wind cable steering bracket, and the right side is separately provided with two horizontal wind cable anchor piers. Two conjugate cables are set under the bridge deck structure, the suspension range of the conjugate cables is 290m, the rise-span ratio is 1 / 42, and a conjugate cable anchorage pier is set on the south bank and the north bank respectivel...

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Abstract

The invention relates to a wind resisting system of a pipeline cable-suspended structure. The wind resisting system of the pipeline cable-suspended structure comprises two horizontal wind resistance cables and a conjugate cable, wherein the two horizontal wind resistance cables are arranged in the form of parabolas in the horizontal direction, aligned with a pipeline cable-suspended bridge deck inthe horizontal direction and correspondingly arranged on the two sides of the pipeline cable-suspended bridge deck; the conjugate cable is arranged in the form of an inverse parabola in the verticaldirection and arranged at the bottom of the pipeline cable-suspended bridge deck. At one end or two ends of the pipeline cable-suspended bridge deck, the horizontal wind resistance cables and a main cable share an anchor pier; when the horizontal wind resistance cables and the main cable share the anchor pier, wind cable steering brackets are arranged on the two sides of a bridge pier to realize the steering of the horizontal wind resistance cables. According to the wind resisting system of the pipeline cable-suspended structure, as the horizontal wind resistance cables, a wind inhaul cable, avertical conjugate cable and a conjugate cable inhaul cable are arranged, purposes of enabling the pipeline cable-suspended structure to resist horizontal wind load and wind load lift and improving the lateral rigidity and vertical rigidity of the pipeline cable-suspended structure are realized.

Description

technical field [0001] The invention relates to a wind resistance system of a pipeline suspension cable spanning structure, which belongs to the field of oil and gas pipeline spanning engineering design. Background technique [0002] Pipeline suspension cable spanning engineering is one of the most commonly used methods for long-distance oil and gas pipelines to cross rivers. The suspension cable spanning structure has the characteristics of strong spanning capacity, low structural stiffness, and low damping. It is extremely sensitive to wind loads, especially in canyon river areas. Influenced by canyon wind, structural wind-induced safety is one of the most concerned aspects of pipeline spanning projects. In the past engineering design, the wind-resistant cable system with a large angle with the horizontal plane was generally adopted or the bridge deck structure with high rigidity was adopted. However, due to the influence of the terrain of the canyon, the conventional wind...

Claims

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Application Information

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IPC IPC(8): E01D11/02E01D18/00E01D19/14E01D19/16
CPCE01D11/02E01D18/00E01D19/14E01D19/16
Inventor 左雷彬马晓成李国辉任文明詹胜文王丽李金玲陈晓晖邵强
Owner BC P INC CHINA NAT PETROLEUM CORP
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