Pipeline suspension cable spanning wind resistant system

Abstract

The invention relates to a pipeline suspension cable span wind resistant system. The pipeline suspension cable span wind resistant system comprises two horizontal wind resistant cables and a conjugatecable, wherein the horizontal wind resistant cables are arranged in a parabolic shape in the horizontal direction and flush with a pipeline suspension cable spanning bridge floor in the horizontal direction, and are arranged on both sides of the pipeline suspension cable spanning bridge floor correspondingly; and the two horizontal wind resistant cables are connected with the pipeline suspensioncable spanning bridge floor correspondingly through a plurality of wind inhaul cables which are arranged in parallel; the conjugate cable is arranged in an inverted parabolic shape in the vertical direction and arranged at the bottom of the pipeline suspension cable spanning bridge floor; and the conjugate cable is connected with the pipeline suspension cable spanning bridge floor through a plurality of parallel arranged conjugate cable inhaul cables. According to the pipeline suspension cable spanning wind resistant system, through arrangement of the horizontal wind resistant cables, the windinhaul cables, the vertical conjugate cable and the conjugate cable inhaul cables, the purposes of resisting horizontal wind load and lift force of wind load of the pipeline suspension cable spanningstructure and improving the lateral and vertical stiffness of the structure are realized.

Description

technical field [0001] The invention relates to a pipeline suspension cable spanning wind resistance system, 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, a wind-resistant cable system with a large angle to the horizontal plane or a bridge deck structure with a high rigidity were generally adopted. However, due to the influence of the terrain of the canyon, the conventional wind-resistant cable layout is ext...

AI Technical Summary

Problems solved by technology

In the past engineering design, a wind-resistant cable system with a large angle with the horizontal plane or a bridge deck structure with a high rigidity were generally adopted. However, due to the influence of the terrain of the canyon, the conventional wind-resistant cable layout is extremely difficult, and the installation of the wind-resistant cables is extremely difficult. However, it cannot provide sufficient lateral and vertical rigidity, and at the same time, the bridge deck structure with higher rigidity will bring higher engineering costs

Images