摘要
针对西南山区较典型的岩石地基岩面起伏较大的情况,进行竖向荷载作用下的嵌岩桩基础、地基梁与框架的共同作用分析,并与传统方法比较。计算结果表明,由于桩端为起伏变化的基岩,桩长往往不等,桩顶集中刚度系数相差较大,在竖向荷载作用下,桩顶不均匀沉降能在上部结构内产生较大的次应力。
Aiming at the circumstances where the face of rock base of southwestern mountain area in China rises and falls seriously, the internal forces of frame structures with the various rock foundations are computed with interaction method and traditional method, and the comparison is made on the two groups of data. The calculation indicates that the pile-top stiffness coefficients differ greatly from each other for the given case, and the inferior stress in the upper structure becomes quite large because of the uneven pile-top settlements.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2002年第5期749-754,共6页
Chinese Journal of Rock Mechanics and Engineering
基金
贵州省自然科学基金项目(黔基合计字(1996)3100号)。
关键词
竖向荷载
山区
嵌岩桩
共同作用
vertical load, mountain area, rock socketed pile,base beam,frame,interaction
