第3章 浅基础结构设计

1、24024060 560 5120 120 12060 60 120 5840840混凝土基础单侧扩展范围内基础底面处的平均压力值超过混凝土基础单侧扩展范围内基础底面处的平均压力值超过300kPa时，尚应时，尚应进行抗剪验算；对基底反力集中于立柱附近的岩石地基，应进行局部受压进行抗剪验算；对基底反力集中于立柱附近的岩石地基，应进行局部受压承载力验算。承载力验算。24024060 560 5120 120 12060 60 120 5840840)61(jminjmaxbebFWMbFp 11jmaxjI)(21appV )32(611max21IAGppaM 0thI7 . 0hfV 0yIs

2、9 . 0hfMA 纯剪破坏纯剪破坏斜压破坏斜压破坏冲切破坏冲切破坏弯曲破坏弯曲破坏11jmaxjI)(21appV lppAGppalaM)()/2)(2(1211max1max21I 则则取取,0bbaa lppppalbblppAGppalaM)()(2()(481)()/2)(2(1211jmaxj1jmaxj201max1max21I )2()(24)/2)(2()(48102jminmax2IIbbalpAGppbbalM )/2)(2()(481)()/2)(2(121minmax2II1max1max21IAGppbbalMlppAGppalaM )(9 . 09 . 00II

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5、BlOAOBlOAAlOBOAlOBOAVMAMVDVVAMMDVVMMDMVCVMDMMCVV 2222222222442244 BABAOBOAOBOAADADDCDCVVMMMMVVllllllll2221222221212414221441 FRCPSbSbSbPyyxxyyy PSbSbSbPyyxxxxx 441xxxxkbEIS 441yyyykbEIS PSbSbSbPyyxxxxx 44PSbSbSbPyyxxyyy 4PSbSbSbPyyxxxxx PSbSbSbPyyxxyyy PSbSbSbPyyxxxxx PSbSbSbPyyxxyyy PSbSbSbPyyxxyyy PSbSbSbPyyxxxxx yyyxxxPPPPPP ,pAPPPpAPPPyyxx ,pAAp AAPp AWe1 . 0 外墙外墙内墙内墙SEEfp SEmaxE2 . 1fp aSSEff 0min pAWe1 . 0 iiiiiiiniEpzzEpE