- 摘 要
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(1 南京金宸建筑設(shè)計有限公司，南京 210029； 2 長江南京航道工程局，南京 210011)
［摘要］運用ANSYS軟件對筏板基礎(chǔ)進(jìn)行數(shù)值模擬，通過分析可知，集水坑的存在改變了筏板基礎(chǔ)的受力特性，且集水坑對筏板有一定的“支座”效應(yīng)。隨著筏板下臥土層壓縮性的降低，集水坑的“支座”效應(yīng)逐漸發(fā)揮，從而使得筏板的受力狀態(tài)得到改善。除此之外，集水坑的加腋角度及下臥土層的性質(zhì)對筏板基礎(chǔ)的受力特性也有很大影響。從集水坑半深處進(jìn)行45°加腋與從集水坑底邊起進(jìn)行33.7°加腋，效果類似。
［關(guān)鍵詞］筏板基礎(chǔ)；集水坑；“支座”效應(yīng)；加腋角度
Analysis on mechanics of raft foundation which setting a catchpit
Lu Fengchi1, Zhang Weiyu1, Ye Haitao2 (1 Nanjing Kingdom Architecture Design Co., Ltd.，Nanjing 210029，China；2 Nanjing Changjiang Waterway Engineering Bureau，Nanjing 210011，China)
Abstract:By using the software ANSYS, it can be concluded that the mechanics of raft foundation has been changed while setting a catchpit on it, in the meantime, the bearing effect appeared. With reducing the compressibility of groundsill, the bearing effect will become intense, and the mechanics of raft foundation will be improved. The gradient of rib on the catchpit and soil characteristic are very important factors to raft foundation. When the gradient of rib on the catchpit is 45°or 33.7°, the effect of raft foundation is analogous.
Keywords:raft foundation; catchpit; bearing effect; gradient of rib
作者簡介：陸鳳池，碩士，工程師，Email:yongzhewuju@163.com。
參考文獻(xiàn)
［1］美國ANSYS公司駐京辦事處.Ansys 使用手冊［M］.
［2］GB50010—2002 混凝土結(jié)構(gòu)設(shè)計規(guī)范［S］. 北京: 中國建筑工業(yè)出版社，2002.
