作　　者： ; ; ;

机构地区： 佛山科学技术学院环境与土木建筑学院土木工程与建筑系

出　　处： 《佛山科学技术学院学报（自然科学版）》 2006年第3期36-40,共5页

摘　　要： 利用七自由度单元的有限元法,当考虑弯曲与剪翘时,对矩形截面简支短直梁进行了内力和变形计算,同时与弯曲和剪翘时的解析解结果进行对比,比较表明,对于静定简支梁的内力,两法的数值具有相同的不变值;另外还对简支短直梁有限元弯曲解和两跨连续梁有限元法的弯曲解与解析弯翘解的结果进行了对比。说明采用七自由度单元的有限元法进行矩形截面简支梁的弯翘分析,有很高的精度,可以代替繁琐的解析解。 Seven-freedom unit finite element method is used. Considering bend and warping, the internal force and distortion of rectangular section shot beam are calculated. Compared with the result of analytic solution of bend and warping, it is indicated that, for the internal force numerical value of simple beam, the two methods have the same fixed value; in addition, comparison between finite element bended solution of simple beam and finite element method bended solution and warping solution of twin-span continuous beam has been made. The result shows seven-freedom unit finite element method has high precision to analyse simple beam of rectangular section, it can replace complex analytic solution.

关 键 词： 矩形截面 直梁 弯翘 七自由度单元

领　　域： [建筑科学] [交通运输工程]