单跨悬索结构简明计算程序研究  

Research on Concise Calculation Program of Single-span Suspended Cable Structure

作　　者：康滴 KANG Di(The Fourth Engineering Company of CCCC Fourth Harbor Engineering Co.,Ltd.,Chengdu 610218,Sichuan,China)

机构地区：[1]中交四航局第四工程有限公司,四川成都610218

出　　处：《工程技术研究》2024年第16期23-25,共3页Engineering and Technological Research

摘　　要：文章基于柔索单元刚度方程,采用分段悬链线模拟长索,通过建立索端力与索形的相互关系,进行迭代计算,以获取无应力状态下的索长。文章通过研究成功地编制了一套计算程序,能对单跨悬索进行形状找寻,准确计算无应力长度和悬索内力。此外,该程序还具备分析悬索在施工阶段的形状和内力的能力。通过与传统解析法进行详细对比,验证了计算程序的正确性和可靠性。该程序不仅能有效地找到悬索的合适形状,在无应力状态下提供准确的长度和内力信息,而且在施工过程中也能可靠地模拟悬索的形状和内力分布情况,应用前景广阔。Based on the element stiffness equation of the flexible cable,this paper uses the segmented catenary to simulate the long cable.By establishing the relationship between the cable end force and the cable shape,the iterative calculation is carried out to obtain the cable length under the stress-free state.A set of calculation program is successfully compiled through research,which can fi nd the shape of single-span suspended cable and accurately calculate the unstressed length and internal force of the suspended cable.In addition,the program also has the ability to analyze the shape and internal force of the suspended cable during the construction phase.By comparing with the traditional analytical method,the correctness and reliability of the calculation program are verifi ed.The program can not only effectively fi nd the appropriate shape of the suspended cable,provide accurate length and internal force information in the stress-free state,but also reliably simulate the shape and internal force distribution of the suspended cable during the construction process,and has broad application prospects.

关 键 词：悬索 计算程序 无应力索长 水平拉力 几何非线性分析 

分 类 号：U441[建筑科学—桥梁与隧道工程]