宁夏工程技术
寧夏工程技術
저하공정기술
NINGXIA ENGINGEERING TECHNOLOGY
2012年
4期
359-361,367
,共4页
空间巨型框架%弹性地基%共同工作%自由振动
空間巨型框架%彈性地基%共同工作%自由振動
공간거형광가%탄성지기%공동공작%자유진동
space mega frame%elastic subgrade%subgrade-foundation-superstructure interaction%free vibration
采用由巨型柱和巨型弹性地基梁组成的空间巨型框架,将其与基础结构建立在具有半无限大弹性地基等效刚度的弹性地基模型上,建立三维分析模型,将整个建筑物的质量分配到巨型梁所在的楼层上,在考虑了地基的弹性变形后,采用空间杆系一层的简化分析模型进行动力分析.为弹性地基上的空间巨型框架结构的动力分析找到一种合理并可行的简化算法.
採用由巨型柱和巨型彈性地基樑組成的空間巨型框架,將其與基礎結構建立在具有半無限大彈性地基等效剛度的彈性地基模型上,建立三維分析模型,將整箇建築物的質量分配到巨型樑所在的樓層上,在攷慮瞭地基的彈性變形後,採用空間桿繫一層的簡化分析模型進行動力分析.為彈性地基上的空間巨型框架結構的動力分析找到一種閤理併可行的簡化算法.
채용유거형주화거형탄성지기량조성적공간거형광가,장기여기출결구건립재구유반무한대탄성지기등효강도적탄성지기모형상,건립삼유분석모형,장정개건축물적질량분배도거형량소재적루층상,재고필료지기적탄성변형후,채용공간간계일층적간화분석모형진행동력분석.위탄성지기상적공간거형광가결구적동력분석조도일충합리병가행적간화산법.
Adopting space mega frame that composed by the mega column and mega beam on elastic subgrade, built its foundation and itself on elastic subgrade model which is semi infinite elastic subgrade with equivalent stiffness, and then three-dimensional analysis model is established. The whole mass of structure is acted on the floors of mega beam, and after considering elastic deformation of subgrade, the simplified model, named space-pole-storey model, is used to dynamic analysis. Consequantly a reasonable and feasible simplified method for dynamic analysis of space mega frames on elastic subgrade is presented.