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[1]LIU Jing-jing,ZHAO Qi-hua,ZHANG Wen-ju,et al.Study on Model Experiment of Multi-nodal Load Prestressed Anchor-rope and Lattice Beam in Laboratory[J].Research of Soil and Water Conservation,2012,19(02):264-266,270.

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Study on Model Experiment of Multi-nodal Load Prestressed Anchor-rope and Lattice Beam in Laboratory

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 19 Number of periods: 2012 02 Page number: 264-266,270 Column: Public date: 2012-04-20

Title:: Study on Model Experiment of Multi-nodal Load Prestressed Anchor-rope and Lattice Beam in Laboratory

Author(s):: LIU Jing-jing^1,2, ZHAO Qi-hua², ZHANG Wen-ju^2,3, PENG Sheng-en¹, ZHOU Yong¹, YU Yu¹; 1. Limited Company of Nuclear Industry Southwest Institute of Survey and Design, Chengdu 610061, China;
2. National Specialty Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu 610059, China;
3. Sichuan Expressway Construction Development Corporation, Chengdu 610041, China

Keywords:: prestress; lattice beam; multi-nodal; model experiment; friction; Winkler elastic foundation beam

CLC:: TU476

DOI:: -

Abstract:: At the present,the mechanical calculation models of lattice beam usually adopt elastic foundation beam method.But for the lattice beam on the slope,the existence of bottom surface fiction makes the stress complex.Therefore,it is important to reflect the true stress of lattice beam with reasonable calculation model.Through study on model experiment of multi-nodal load prestressed anchor-rope and lattice beam in laboratory,it is thought that the friction on base surface may directly affect deformation and stress towards lattice beam on slope because of the effect of slope angle and anchor-rope dip angle.Based on this point,this paper adopts method of Winkler elastic foundation beam which considers friction in theoretical calculation,and compares test results with the calculated ones,it is conformed that this foundation model can reflect the stress condition of grade beam,and make the calculated results more reliable and suitable for engineering application.

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