| As an kind o f lig htweight, en erg y sa ving, e co- fri end l y building materi als, full lig htweight a ggr egat e conc re t e has g o od structu ral perf orma nc e, go od s eismic p er form anc e, thermal insulation, h eat ins ulation and good dur abilit y etc.T he full light weight conc ret e is bene fici al fo r redu cing t he stru ctur al w eight, r educ in g t he cost of the proj ec t, inc re as ing the span of the str uc ture and th e use of b uilding spac e.Th e pa per use d the full lightweight aggr egat e con cr ete in th e fram e stru ctur e, a nd the joint ar e a was th e we ak p art of the f ram e st ructu re, s o the m ec hani cal pro perties of the full lightwei ght co n cret e and th e s eismic pe rfo rman ce of beam- column joints wer e studi ed a nd an al yz ed.The c ompr essive st re ngth test, splitting te nsile stre ngth test an d elasti c modulus test of full lightweig ht c onc ret e o f LC30 a nd LC3 5 lev el w er e condu cted, and the mech anic al p rope rtie s and f ailure c ha ra cteristics of the full lightweight con c rete w er e an al yz ed, which pro vided a th e oretic al basis for th e seismi c be havior t est of t he full lightweig ht c oncr ete fr ame beam- column joint.Through tw o full lightweight ag gr ega te con cr ete f ram e int erior beam- column joint spe cimens and t wo e xterio r be am- column joint specim ens und er di ff ere nt axi al comp ressi on of low rev ers ed c yc lic lo ading test, the pap er an al yz ed the failu re ch ara cte ristics of full lightweight aggr egat e co ncr ete fram e be am- colum n jo int under th e condition of simulating ea rthqua ke and the impa ct of axial comp res sion on the beam- column joi nt of f ull lightwei g ht aggr eg ate con cr ete. Throug h h yst er etic curv es, s keleton cu rves, duct ilit y, stiffness cu rve s and en erg y dissipation cap acit y, t he seismic p er form anc e o f full light wei ght agg re gate conc ret e f ram e be am-column joints comp reh ensive l y ev aluat e d.The finit e el ement an al ysis soft war e AB A QUS was used to an a l yz e th e interior be am- colum n joints sp ecimen s and exte rior be am-c olumn joint speci m ens. Th e an al ys is o f the di ff er en ce o f test r esults a nd simulation results show ed th at t heor etic al anal ys es w ere consistent with te st re sults, so it was f easibl e to app l y ABA QUS to the a nal ysis o f s eismic be havior of full lightweight conc ret e fram e.Throu gh ex pe rimenta l res ea rc h on seismi c beh avior o f f ull ligh tweight aggr egat e c onc ret e fram e b eam-colu mn joints, it sho w ed th at full lightweight agg reg at e c onc ret e h ad a g ood seismi c p er for manc e. It w as feasi ble in th eor y t o appl y sh ale c er am site a nd s hale po tt e r y to the full lightweight agg reg at e conc ret e, fu rthe r re sear ch fo r pr actic al a pplication of full lightweig ht agg r egat e con cr ete was still need ed. |
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