Research on Concise Calculation Program of Single-span Suspended Cable Structure
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 iter-ative 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 find 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 sus-pended cable during the construction phase.By comparing with the traditional analytical method,the correctness and reliability of the calculation program are verified.The pro-gram can not only effectively find 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.
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