A Marking Alignment Erection Method for Main Cable Strands of Suspension Bridge Based on Multi-standard Wires

Abstract

The invention discloses a suspension bridge main cable strand mark alignment erection method based on multiple standard wires. The method mainly solves the problems that when a main cable strand is erected through an existing sag method, under the stable weather condition, the sag needs to be measured and adjusted many times, the linear requirement can be met, the construction period is long, andthe construction difficulty is large. After the cable strand erecting method is used, sag adjustment is not needed any more, the influence of the climatic environment is avoided, and the purposes of improving the main cable erecting quality and shortening the construction period are achieved. According to the main cable strand manufactured through the method, the manufacturing precision is greatlyimproved. When a main cable is erected, after the reference cable strand is placed into the main cable saddle, the marking point of the reference cable strand coincides with the IP point of the maincable, and the sag of the main cable does not need to be adjusted. The construction period is saved for erection of the main cable of the suspension bridge, especially in an environment with severe weather conditions, the erection construction period can be saved by tens of days to months, and the erection method is simplified.

Description

technical field [0001] The invention relates to the field related to the main cable strands of a suspension bridge, in particular to a method for erecting marks and alignment of the main cable strands of a suspension bridge based on multi-standard wires. Background technique [0002] The main cable is the most important main force-bearing component of the suspension bridge. The shape of the main cable can hardly be adjusted after the bridge is completed. Therefore, the line shape of the prefabricated parallel steel wire main cable strands is the key to the quality of the main cable. [0003] The purpose of erecting and adjusting the main cable strands is to keep the length of the main cables of each span or infinitely close to the theoretical value. Theoretically, if the calculation of the length of each span of the main cable strand is very accurate and the manufacturing accuracy is sufficient, it is only necessary to place each span strand of the main cable in each saddle,...

AI Technical Summary

Problems solved by technology

[0007] Therefore, in order to solve the above-mentioned deficiencies, the present invention hereby provides a method for erecting the marks of the main cable strands of a suspension bridge based on multi-standard wires; In this case, the sag needs to be measured and adjusted multiple times to meet the alignment requirements, resulting in long and difficult construction periods.

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