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Analysis of Spatial Load Bearing Behavior of Cable Clamps of A Suspension Bridge
Author(s): 
Pages: 58-62
Year: Issue:  5
Journal: World Bridges

Keyword:  suspension bridgemain cablecable clampload bearing behavior analysisVon Mises stressradial stressloop tensile stressfinite element method;
Abstract: The main bridge of the Taohuayu Huanghe River Bridge is a self‐anchored steel box girder suspension bridge .The cable clamps are pin‐connected structures ,involving the main com‐ponents of an upper and a lower halves (with ear plates) and screw rods .To examine the load bearing behavior of the main cable‐cable clamps configuration ,the typical cable clamps are taken as the study objects .ANSYS is used to establish the local spatial finite element model of the main ca‐bles and cable clamps ,to analyze and study the load bearing conditions and stress distribution law of each elements of the cable clamp .The results of the finite element analysis are compared with those gained by simplified formula and verified .The findings from the comparison and verification demonstrate that under unfavorable loading effect ,the stress in each steel elements of the cable clamp all meets the code requirements ,stress transfers smoothly among elements .The loop tensile stress in the arc section of the upper half of the cable clamp is in good agreement with the results calculated by simplified formula .T he compressive stress on the contacting surface of the main ca‐ble and the upper half of the cable clamp is about 85% of the calculated value .Whereas the com‐pressive stress in the contacting surface of the main cable and the lower half of the cable clamp ex‐hibits uneven distribution towards the main cable ,being V‐like distribution ,the unfavorable effect of w hich should be considered in the design .
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