- 摘 要
-
盧建峰1， 蔣永生2， 梁書亭2
（1 南京市建筑設(shè)計研究院有限責(zé)任公司，南京210005；2 東南大學(xué)土木工程學(xué)院，南京210096）[摘要] 現(xiàn)行規(guī)范中，承臺設(shè)計均基于剛性假定。本文分析了樁頂反力分布的影響因素，并通過將樁-承臺體系簡化為彈簧支承的連續(xù)梁，推導(dǎo)出滿足近似剛性要求的承臺厚度計算公式。與有限元分析結(jié)果對比表明，建議公式具有較高的精度。
[關(guān)鍵詞] 承臺；彈簧支承連續(xù)梁；剛度要求；厚度
中圖分類號：TU470 文獻標(biāo)識碼：A 文章編號：1002-848X(2011) S2-0375-03Calculation on the thickness of pile cap according to rigidity requirement
Lu Jianfeng1, Jiang Yongsheng2, Liang Shuting2
(1 Nanjing Architectural Design ＆Research Institute Co., Ltd., Nanjing 210005, China; 2 College of Civil Engineering, Southeast University, Nanjing 210096, China)Abstract: Pile caps are designed on the basis of rigid-block assumption in current specification. The factors wluch affect pile load distribution were discussed. By simplifying pile cap as a continuous beam with spring supports,a series of formula computing depth of pile cap were proposed to meet the rigidity requirement. The proposed formulas are of high accuracy compared with finite-element analysis results.
Keywords: pile cap; continuous beam with spring supports; rigidity requirement; tluckness
