钢筋混凝土楼板_预应力空间桁架组合体系的静动力非线性分析_韩建平.pdfVIP

24 5 建 筑 科 学 Vol1 24, No1 5 2008 5 BUILDING SCIENCE May 2008 [ ] 1002- 8528( 2008) 05-0059-05 ) 1, 2 1 1 韩建平 , 杨文侠 , 李 慧 ( 11 兰州理工大学防震减灾研究所, 兰州730050; 21 同济大学 结构工程与防灾研究所, 上海 200092) [ ] , , , , , , , ; , , [ ] ; ; ; ; [ ] TU398 [ ] A Static and Dynamic Nonlin ar Analys s of a R inforc d Concr t Floor-Pr str ss Spac Truss Composit Syst m 1, 2 1 1 HAN Jian-p ing , YAN G Wen-xia , LI H ui ( 1. Institute of Earthquake Protection and Disaster Mitig ation, Lan hou University of Technology , Lan hou 730050, China; 2. Research Institute of Structural Engineering and Disaster Reduction, Tongj i University , Shanghai 200092, China) [Abstract] In ord r to str ngth n a damag d RC floor of a factory building und r m chanical vibration and mitigat its vibration r spons s, a composit syst m, which is compris d of original r inforc d concr t slab, t nsion chord of pr str ss st l wir rop s and compr ssion w b of st l tub , was pr s nt d and put into practic . R sults of dynamic m asur m nt b for and aft r str ngth ning show d that th p ak valu s of dynamic r spons s, such as acc l ration and v locity of th floor w r suppr ss d ff ctiv ly. Furth rmor , th static and dynamic nonlin ar analys s of this syst m w r p rform d by univ rsal finit l m nt analysis softwar . Analysis r sults indicat that diff r nt points of th compr ssion RC slab can vibrat synchronously and th maximum displac m nts of th slab in th composit syst m d cr as r markably. Th s simulation r sults consolidat th validity of this composit syst m for vibration suppr ssion and str ngth ning of th damag d RC floor. [ Keywords] pr str ss spac composit truss; floor vibration; str ngth ning; nonlin ar dynamic analysis; dynamic m asur m nt 1