垫板加强N形圆钢管相贯节点静力性能试验研究.pdf

31 10 2010 10 Jou rn al of Bu ild ing Structures V o l3 1 N o10 O ct2010 0 12 : 2010) 1000 8306 N 1 2, 3 3 吴亮秦, 李自林 , 韩庆华 ( 1. 同济大学桥梁工程系, 上海 200092 2. 天津城市建设学院 土木工程系, 天津 300384 3. 天津大学 建筑工程学院, 天津 300072) : N , , , , , , , , : N :TU 3923 : A Expermi ental study on static behavior of plate rein forced tubular N jo ints 1 2, 3 3 WU L iangqin , L I Z ilin , HAN Q inghua ( 1. D epartm ent o f Br idge Eng ineer ing, T ongjiU n iversity, Shangha i 200092, China 2. D epartm ent of C iv il Eng ineer ing, T ian jin Institute of U rban Construction, T ian jin 300384, Ch ina 3. Schoo l of C iv il Eng ineer ing, T ianj in U n iversity, T ian jin 300072, Ch ina) A bstract: In order to investigate the effect o f the reinforcing p late on static behavior of tubu lar N jo in ts und er ax ial compress ion of brace and chord, expermi ent and non linear fin ite elem ent an alys isw ere carried ou t on a p late reinforced and an unreinforced tubu lar Njoint. T est resu lts, in clud ing th e failu rem ode and u lt mi ate capac ity w ere compared w ith the FEA resu lts, show ing good agreem en t. An aly s is of geom etric param eters of the reinforced p late w ere conducted u sing fin ite elem en t m ethod. Th e resu lts show that the reinforcing p late can reduce stress con cen tration factors, decrease local deform at ion and increase u ltmi ate capacity of the join t. It is found from the param etric stu