自锚式悬索桥主缆线形实用精细化算法研究

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【中图分类号】：U448.25 【文献标志码】：A 【文章编号】：1008-3197（2025）04-12-05

【DOI编码】：10.3969/j.issn.1008-3197.2025.04

Refined and Dractical Analysis of Main Cable Shape of Self-anchored Suspension Bridges

NIU Denghui'，CAI Songbao²

（1.TianjinMunicialEngieringDsign&ResearchIstituteCo.，d.ianj3O39，China;ChinaCostructionSthEging Department Co.，Ltd.，Tianjin ，China）

【Abstract】：Tocalculationthe main cable shapeof self-anchored suspension bridges，this study proposesa segmented catenary theory basedonthe traditional calculation method，thatsatisfies thelaws ofconservation of mass without solving nonlinear equations.Based on this theory，a program SASB_1 was compiled to calculate the main cable shape and stress-free length under the designed dead load condition of self-anchored suspension bridges.Thereliabilityand accuracy of the algorithm were verified through classic calculation analytical case and modeltests conducted on the Taohuayu YellowRiverBridge inHenan Province.

【Key words】： self-anchored suspension bridge；main cable shape;segmented catenary

悬索桥主缆成桥线形关系到结构内力及桥面平顺度。（剩余4180字）