Experimental study on internal force and deformation of anchored bracing piles
PAN Xu-liang1, 2, ZHANG Qin-xi1, DU Xiu-li1, WANG Jian2, YANG Su-chun2, ZHANG L黣2
(1. College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China; 2. Beijing Engineering Consultants Ltd., Beijing 100038, China)
Abstract：The anchored bracing pile is more widely and more applied beyond its theory. Dynamic data of steel bar stress and horizontal displacement along piles are analyzed, and the distribution rules of internal force and deformation are gained. Based on steel bar force and section curvature, two methods to calculate bending moment along pile are deduced. Comparison between the m method and the equivalent beam method indicates that moment distribution is similar, but its numerical value is very discrepant. The m-method has the largest bending moment, and the in-situ measurement has the smallest bending moment. So the traditional design methods have large optimization space. Theoretically it can save half quantities of steel bars, which are less collocated near the central axis.
潘旭亮, 张钦喜, 杜修力, 王坚, 杨素春, 张略. 桩锚支护结构内力和变形试验分析[J]. 岩土工程学报, 2012, 34(suppl): 277-281.
PAN Xu-liang, ZHANG Qin-xi, DU Xiu-li, WANG Jian, YANG Su-chun, ZHANG L黣 . Experimental study on internal force and deformation of anchored bracing piles. Chinese J. Geot. Eng., 2012, 34(suppl): 277-281.
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