- 摘 要
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(沈陽新大陸建筑設(shè)計有限公司, 沈陽 110179)
［摘要］短柱基礎(chǔ)可有效減小底層柱計算長度，滿足底層側(cè)向剛度要求。對多層框架采用不同高度及截面尺寸的短柱基礎(chǔ)與按以短柱頂為嵌固端進(jìn)行簡化計算分析比較，結(jié)果表明不能按以短柱頂為嵌固端進(jìn)行簡化計算。通過工程設(shè)計實(shí)例介紹了采用短柱基礎(chǔ)的多層框架的設(shè)計方法，即設(shè)計時可將短柱層設(shè)為一個結(jié)構(gòu)層，再將上部結(jié)構(gòu)嵌固于短柱頂及基礎(chǔ)頂分別進(jìn)行計算，一層梁、柱按兩次計算結(jié)果的較大值進(jìn)行設(shè)計配筋，其他構(gòu)件按有短柱層計算結(jié)果設(shè)計配筋。
［關(guān)鍵詞］短柱基礎(chǔ); 多層框架; 計算長度; 剛度比
中圖分類號：TU318.2 文獻(xiàn)標(biāo)識碼：A 文章編號：1002-848X(2014)02-0071-04
Design of multilayer frame structure with puncheon foundation
Dong Qihao
（Shenyang New World Architecture Design Co., Ltd., Shenyang 110179, China）
Abstract: By using puncheon foundation, the effective length of bottom columns can be reduced and lateral stiffness of bottom layer meet requirements of the code. Compared simplified calculation results of multilayer frame with application of different height and size puncheon foundation and set the embedded end on the top of puncheon foundation show that it is improper to set the embedded end on the top of puncheon foundation. The design method of multilayer frame with puncheon foundation was introduced based on practical projects as follows. Puncheon foundation can be set to a structure layer, and then set the embedded end of superstructure on the top of puncheons or the top of the foundation separately to calculate. Beams and columns in first layer are reinforced according to larger calculated values of models with different embedded end locations and other components are reinforced according to calculated values of the model with puncheon foundation.
Keywords: puncheon foundation; multilayer frame; effective length; stiffness ratio
作者簡介：董啟灝，碩士，教授級高級工程師，Email: nwdqh@163.com。
參考文獻(xiàn)
［1］GB 50011—2010 建筑抗震設(shè)計規(guī)范［S］.北京:中國建筑工業(yè)出版社，2010.
［2］GB 50007—2011建筑地基基礎(chǔ)設(shè)計規(guī)范［S］. 北京:中國建筑工業(yè)出版社，2012.
［3］王允鍔.短柱基礎(chǔ)在多層框架中的運(yùn)用［J］. 建筑結(jié)構(gòu)，2003，33（10）：48-50.
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