索结构外文文献 基于数值方法的弦支穹顶结构索力估算.pdf

Iranian Journal of Science and Technology Transactions of Civil Engineering (2020)44:115-126 https:/doiorg/10.1007/s40996-020-00345-5 RESEARCH PAPER Check fou updates Cable Tension Estimation for Suspen-Dome Structures Based on Numerical Method Zhiguang Yang'.Bing Liang'.Haiging Liu'.Zhongwei Zhao D Received:20 August 2017/Accepted:4 January 2020/Published online:13 January 2020 Shiraz University 2020 Abstract Suspen-dome structures have been widely adopted due to their superiority over traditional structures.Cable condition is crucial to the safety of suspen-dome structures especially the magnitude of cable force.However thus far investigations on estimating the tension in this type of structure remain lacking.In this study double-element method was initially devel- oped to simulate cables and its accuracy was validated.Tension pensation method was adopted to ensure that the cable force is equal to the designed value.Then transient analysis was conducted based on an actual suspen-dome structure.The dynamic responses derived based on the overall structures and the simplified models were pared and the reliability of the simplified models was validated.Finally parametrical analysis was conducted to investigate the influence of support stiffness and cable-bending stiffness on the fundamental frequency of cables.A cable tension estimation program which was suitable for suspen-dome structures was updated.Results indicate that vibration method can maintain good accuracy when ...