中美溷凝土结构设计规范构件正截面受弯承载力的分析比较.pdfVIP

23 7 建 筑 科 学 Vol1 23, No1 7 2007 7 BUILDING SCIENCE Jul. 2007 [ ] 1002-8528(2007) 07-0028-06 宋世研, 叶列平( 清华大学 土木工程系, 北京 100084) [ ] , , 56( GB 50010-2002) ACI 318M-05 , , , , ; , 115 , , [ ] ; ; ; ; [ ] TU375; TU312 [ ] A A Compariso of Desig Methods for Flexure Stre gth of RC Beams betwee Chi ese a d America Desig Codes for RC Structures SONG Shi-yan, YE Lie-ping ( Department of Civil Engineering , Tsinghua University , Bejiing 100084, China) [Abstract] A compariso of flexure stre gths of RC beams is carefully studied betwee Chi ese a d ACI 318M-05 desig codes, i cludi g desig methods, co crete stre gths, calculatio methods, maximum a d mi imum ratios of rei forceme t a d calculatio results. The results show that the stre gth reductio factors are almost the same betwee the both codes, but the requireme t of the maximum ratio of rei forceme t of ACI318 code is stricter tha Chi ese code, while the mi imum ratio of rei forceme t of ACI318 code is 50% larger tha Chi ese code. Furthermore, the load-resista ce coefficie t desig method of ACI 318 code seems more flexible i adjusti g the desig safety degree for differe t behaviors of RC eleme ts subjected to various forces. [Keywords] rei forced co crete; flexure stre gth; desig method; stre gth reductio factor; maximum a d mi imum ratio of rei forceme t 1 , , 5 [ 1] 2 GB 50010-20026( / 0) , 5 Buildi g Code Requireme ts for 56[ 3] Structural Co crete6 ( ACI318M-05) ( / , , 0) [ 2] : Rk f c,k f s, k C S [ = R ,