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Cable Adjustment of Stayed Bridge in ANSYS
Author: ZhouQiang
Tutor: YangWenBing
School: Huazhong University of Science and Technology
Course: Engineering Mechanics
Keywords: cable adjustment nonlinear characteristics simulation of bridge construction secondary development of ANSYS
CLC: U448.27
Type: Master's thesis
Year: 2005
Downloads: 801
Quote: 2
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Abstract
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Having many advantages, cable-stayed bridge is an important form of modern bridges. Cable-stayed bridge is a kind of statically indeterminate structure in the domain of mechanics. Tensing stayed cables is a chief method to controlling the mechanical behaviors of cable-stayed bridge. As proved, the initial tension force of stayed cable cannot be exactly calculated, which is to avoid the complex process of stayed cable’s tension. So, the tension adjustment of stayed cable is still the key process of bridges’construction. Nonlinear characteristics, including slack effect, should be taken into consideration in bridge FEA software. The unstressed length of cable, which is consulted by unstressed status controlling in the construction of bridge, is a part of results. Changing the temperature of stayed cable can exactly simulate the alteration in cables’tension. The slack of cable is under consideration by using multiple tension-only elements. The unstressed length of stayed cable can be also calculated by the theory of catenaries. All these equivalences are the foundations that simulate tensing stayed cables in ANSYS. Supported by these equivalences, some programs are to present the process of tensing the stayed cables and organization of data in the simulation of bridge construction. Linked to the ANSYS, these programs have been the very one part of bridge construction simulation in bridge FEA software.
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CLC: > Transportation > Road transport > Bridges and Culverts > All kinds of bridges > Bridge: Structure > Cable-stayed bridge
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