Stressed Length Stakeout Method for Cable Clamp Position of Suspension Bridge

Abstract

The invention discloses a method for setting out a stressed length of a cable clamp position of a suspension bridge. The influence analysis of the two parameters of deviation is carried out; after the erection of the cable strands in step 2, the temperature of the main cable and the deviation of the bridge tower are tested, and the actual cable shape after considering the temperature and span changes is established, which is converted into the reference temperature. And the line shape of the empty cable without the influence of the span change, so as to determine the mid-span elevation of the main span of the main cable under the reference temperature and without the influence of the span change. The invention has the characteristics of simple operation, high precision and high setting-out efficiency, and provides strong technical support for the rapid setting-out construction of the cable clamps of medium and small diameter suspension bridges.

Description

Technical field [0001] The invention involves the construction technology field of suspension bridges. More specifically, the present invention involves a stress -length way to put a stress length of a suspended cable cable clip. Background technique [0002] The suspension bridge is a bridge type with large leapfrog ability, simple structure and clear force. The wiring of the suspension bridge is beautiful, especially the suspension bridge within 400m, which has a strong competitive advantage and often becomes local iconic buildings and landscape points. [0003] The suspension bridge cable has a strong sensitivity to temperature. The empty cable shape changes with the temperature, which determines the variability of the cable. At the same time, the precise sample of the cable directly determines the inclined angle and horizontal inclination angle of the hanging cable bridge under the bridge state, which not only affects the appearance of the bridge shape, but also affects the c...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to solve the current problems such as the time asynchrony between the mileage measurement of the cable clamp position and the temperature test in the stakeout of the main cable clamp of the small and medium-span suspension bridge, the stakeout efficiency is too low, and the environment is limited by low visibility. Provide a stress-length stakeout method for the position of cable clips in suspension bridges

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