- 摘 要
-
（中國建筑技術集團有限公司， 北京 100013)
［摘要］詳細介紹了巖石地基條件下高層建筑柱下獨立基礎設計需要驗算的內容與相關要求。通過實際算例，說明單獨柱基受剪承載力無論是按鋼筋混凝土計算還是按素混凝土計算都不容易滿足規(guī)范要求，且單獨柱基受彎鋼筋很大，不經濟。提出加大底層柱截面的方法來解決既有建筑單獨柱基抗剪承載力不足的問題，對于設計人員有一定的參考價值和實際意義。
［關鍵詞］單獨柱基； 受沖切承載力； 受剪承載力； 受彎承載力； 局部受壓承載力
中圖分類號：TU375文獻標識碼：A文章編號：1002-848X(2016)16-0088-05
Analyses and suggestions for single foundation under column of tall buildings
Chen Changxing, Chang Jing, Niu Yanbing
(China Building Technique Group Co., Ltd., Beijing 100013, China)
Abstract:The checking contents and relevant requirements of the single foundation under column of tall buildings on the rock foundation were introduced. Through actual examples, it shows that the shear bearing capacity of the single foundation under column is not easy to meet specification requirements whether calculated according to reinforced concrete or plain concrete, and flexural reinforcement of single foundation under column is large and not very economic. The method of increasing the bottom column section was proposed to solve the problem of insufficient shear strength of single foundation under column for the existing building, and the method has some reference values and practical significance for structure designers.
Keywords:single foundation under column； punching shear bearing capacity； shear bearing capacity； flexural bearing capacity； local compressive bearing capacity
作者簡介：陳長興，本科，教授級高級工程師，一級注冊結構工程師，Email：878393552@qq.com。
