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宋相道  李華亭　（青島市建筑設(shè)計(jì)研究院　266003）

[提要]  剛性基礎(chǔ)設(shè)計(jì)必須滿足臺(tái)階寬高比（剛性角）的限制。《建筑地基基礎(chǔ)設(shè)計(jì)規(guī)范》( GB50007-2002) 對(duì)剛性基礎(chǔ)臺(tái)階寬高比允許值作了規(guī)定，但其范圍較小。經(jīng)計(jì)算發(fā)現(xiàn)，有些情況下滿足規(guī)范寬高比的規(guī)定，基礎(chǔ)的抗彎或抗剪承載力仍不能滿足要求。按抗彎、抗剪承載力要求，補(bǔ)充計(jì)算了一些常用的不同地基凈反力、不同材料的臺(tái)階寬高比（剛性角），供設(shè)計(jì)參考。
[關(guān)鍵詞]  寬高比  剛性基礎(chǔ)  剛性角  凈反力

The rigid foundation design must satisfy the limitation of the width- height ratio of steps.  The design code for civil engineering foundations has prescribed the allowable value for the ratio, but the range is small. It has been found by means of calculating that in some case the ratio satisfies the demand of the design code, but bending resistance or shearing resistance of the foundations can't meet the demand. According to the demand of bending resistance and shearing resistance, the calculation of the net reaction of the foundations and the width-height ratio of the stepped foundations with different material in common conclition are provided as a reference for design.
Keywords:  width-height ratio; rigid foundation; rigid angle; net reaction

    參  考  文  獻(xiàn)
1．混凝土結(jié)構(gòu)設(shè)汁規(guī)范(GB50010-2002)．
2．建筑地基基礎(chǔ)設(shè)計(jì)規(guī)范( GB50007-2002)．
3．砌體結(jié)構(gòu)設(shè)計(jì)規(guī)范( (GB50003-2002)．
4．混凝土結(jié)構(gòu)設(shè)計(jì)規(guī)范（GBJ10-89）．
5．建筑地基基礎(chǔ)設(shè)計(jì)規(guī)范( GBJ7-89)
6．砌體結(jié)構(gòu)設(shè)計(jì)規(guī)范( GBJ3-88)
7．工業(yè)與民用建筑地基基礎(chǔ)設(shè)計(jì)規(guī)范( TJ7-74)．