板式柱帽对现浇空心板柱结构等代梁刚度系数的影响
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摘要
用等代框架法计算空心板柱结构的关键是确定等代框架的宽度。针对水平荷载作用下带板式柱帽的空心板柱结构等代框架计算模型中等代梁宽度取值的问题,认为采用刚度系数的形式来描述等代梁宽度更为合理。运用有限元分析软件 ANSYS 10.0进行了6组33种不同几何参数的空心板柱结构在水平荷载下的弹性分析,研究了等代梁刚度系数与框架尺寸的关系,最后通过线性回归分析得到了带板式柱帽的空心板柱结构的等代梁刚度系数的计算公式,为今后现浇空心板柱结构的等代框架法的进一步研究提供了依据。
The equivalent frame method is the most common method for hollow flat-plate structures,and how to compute the equivalent frame width coefficient is one of key questions of the method.Aimed at the problem of the width coefficient of equivalent frame in cast-in-situ hollow slab column-cap structure under horizontal load,it is more reasonable to describe the width coefficient of equivalent frame in the form of stiffness coefficient.In order to get the formulas to calculate the stiffness coefficient of cast-in-situ hollow slab structures with column-cap,6 groups of hollow flat-plate structures with 33 kinds of different geometric parameters under lateral load were analysed elastically.The relationship between the equivalent beam stiffness coefficient and the geometric parameters of the frame was studied.And the formula for calculating the equivalent beam stiffness coefficient was obtained by linear regression analysis,which is the basic issure for the further research of equivalent frame method in cast-in-situ hollow slab structures.
The equivalent frame method is the most common method for hollow flat-plate structures,and how to compute the equivalent frame width coefficient is one of key questions of the method.Aimed at the problem of the width coefficient of equivalent frame in cast-in-situ hollow slab column-cap structure under horizontal load,it is more reasonable to describe the width coefficient of equivalent frame in the form of stiffness coefficient.In order to get the formulas to calculate the stiffness coefficient of cast-in-situ hollow slab structures with column-cap,6 groups of hollow flat-plate structures with 33 kinds of different geometric parameters under lateral load were analysed elastically.The relationship between the equivalent beam stiffness coefficient and the geometric parameters of the frame was studied.And the formula for calculating the equivalent beam stiffness coefficient was obtained by linear regression analysis,which is the basic issure for the further research of equivalent frame method in cast-in-situ hollow slab structures.
引文
[1] 周克荣,蒋大骅.板柱结构等代框架计算宽度的取值初探[J].结构工程师,1993(3) :14-19．
[2] 刘劲松,唐锦春,裘涛.板式柱帽对板柱结构等代框架宽度取值的影响[J].建筑结构,2004,34(2) :64-66．
[3] 李俊兰,吕西林,周德源.地震作用下板柱结构等代框架法计算模型的研究[J].建筑结构学报,1999,20(1) :39-45．
[4] 吴强,程文瀼.水平力下板柱结构等代梁有效宽度系数的研究[J].南京航空航天大学学报,2006,38(2) :261-266．
[5] 张宇峰,吕志涛.边梁对板柱结构等代框架宽度取值的影响[J].建筑结构,2001,31(2) :43-46．
[6] 成洁筠,杨建军.边梁对空心板柱结构等代梁宽度取值的影响[J].中南林业科技大学学报,2008,28(6) :106-111．
[7] 王小梅,蔡健.平板-异形柱结构体系合理计算模型和分析方法的研究[J].四川建筑科学研究,2008,34(6) :34-37．
[8] 谭磊.水平荷载作用下空心板-柱结构受力性能及试验研究[D].长沙:湖南科技大学,2008．
[2] 刘劲松,唐锦春,裘涛.板式柱帽对板柱结构等代框架宽度取值的影响[J].建筑结构,2004,34(2) :64-66．
[3] 李俊兰,吕西林,周德源.地震作用下板柱结构等代框架法计算模型的研究[J].建筑结构学报,1999,20(1) :39-45．
[4] 吴强,程文瀼.水平力下板柱结构等代梁有效宽度系数的研究[J].南京航空航天大学学报,2006,38(2) :261-266．
[5] 张宇峰,吕志涛.边梁对板柱结构等代框架宽度取值的影响[J].建筑结构,2001,31(2) :43-46．
[6] 成洁筠,杨建军.边梁对空心板柱结构等代梁宽度取值的影响[J].中南林业科技大学学报,2008,28(6) :106-111．
[7] 王小梅,蔡健.平板-异形柱结构体系合理计算模型和分析方法的研究[J].四川建筑科学研究,2008,34(6) :34-37．
[8] 谭磊.水平荷载作用下空心板-柱结构受力性能及试验研究[D].长沙:湖南科技大学,2008．
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