55 &216758&ğ,, – Nr. 2 / 2009 ,QVWLWXWXO 1DĠLRQDO GH &HUFHWDUH 'H]YROWDUH vQ &RQVWUXFĠLL úL (FRQRPLD &RQVWUXFĠLLORU ± ,1&(5& %XFXUHúWL [email protected]ABSTRACT The article presents a case study that analyzes the seismic response of two RC frame buildings with different heights (a low and a tall structure) with or without masonry infill, when they are subjected to three types of seismic motion records (low, medium and high frequency). This analyze was made on three models of RC frame buildings: simple frame, masonry infill frame with soft infill and masonry infill frame with stiff infill. Four rehabilitation methods were applied and studied on these frame structure models: (1) introducing RC walls, (2) introducing steel bracings, (3) using diagonal FRP bracing and (4) partial or total wrapping of frame elements (columns and beams) using FRP. The analysis was made having as parameters the maximum peak ground acceleration, the maximum inter-storey drift, the maximum storey shear and the energy dissipation capacity. Keywords: rehabilitation, strengthening, methods, seismic response REZUMAT Articolul SUH]LQWă XQ VWXGLX GH FD] SULQ FDUH VH DQDOL]HD]ă UăVSXQVXO VHLVPLF D GRXă VWUXFWXUL vQ FDGUH GLQ EHWRQ DUPDW FX vQăOĠLPL GLIHULWH R VWUXFWXUă MRDVă úL XQD vQDOWă FkQG VXQW VXSXVH OD WUHL WLSXUL GH vQUHJLVWUăUL VHLVPLFH FX IUHFYHQĠă MRDVă PHGLH úL vQDOWă S-au studiat trei modele de cadre din beton armat: cadre simple, cadre cu SDQRXUL GLQ ]LGăULH FX ULJLGLWDWH PLFă úL cadre cu SDQRXUL GLQ ]LGăULH FX ULJLGLWDWH PDUH 3DWUX PHWRGH GH UHDELOLWDUH DX IRVW DSOLFDWH úL VWXGLDWH SH DFHVWH modele de structuri în cadre: (1) introducerea SHUHĠLORU GLQ EHWRQ DUPDW LQWURGXFHUHD FRQWUD vântuirilor metalice, (3) utilizarea diagonalelor din EHQ]L GLQ SROLPHUL DUPDĠL FX ILEU e (FRP) úL vQIăúXUDUHD SDUĠLDOă VDX WRWDOă D HOHPHQWHORU FDGUXOXL VWkOSL úL JULQ]L IRORVLQG PDWHULDOHOH GLQ SROLPHUL DUPDĠL FX ILEUă GH FDUERQ $QDOL]D D IRVW HIHFWXDWă având ca parametri DFFHOHUDĠLD GH YkUI a terenului PD[LPă deplasarea relativă de nivel maximă IRUĠD WăLHWRDUH GH QLYHO PD[LPă úL capacitatea de disipare a energiei. Cuvinte cheie: reabilitare, consolidare, metode, UăVSXQV seismic $1$/,=$ 5Ă638168/8, 6(,60,& $/ &/Ă',5,/25 &,9,/( ',1 BETON ARMAT REABILITATE PRIN DIFERITE 0(72'( 02'(51( '( ,17(59(1ğ,( $QGUHHD '8ğ8 1. INTRODUCERE Istoria ingineriei seismice în România este marcDWă GH SDWUX FXWUHPXUH LPSRUWDQWH octombrie 1802, 11/23 ianuarie 1838, 10 noiembrie úL PDUWLH Primul este considerat a fi cel mai mare eveniment seismic din zona Vrancea, când a avut ORF SUăEXúLUHa WXUQXOXL &ROĠHL &HO GHDO GRLOHD HVWH FRPSDUDELO FX SULPXO FD PDJQLWXGLQH úL HIHFWH Cutremurul din 10 noiembrie 1940, care a determinat SUăEXúLUHD EORFXOXL &DUOWRQ D IRVW SULPXO FDUH D QăVFXW vQWUHEăUL úL SUHRFXSăUL vQ LQJLQHULD VWUXFWXUDOă D FOăGLULORU GLQ EHWRQ DUPDW $FHVWHD DX FRQGXV OD DSDULĠLD SULPHORU QRUPH GH SURLHFWDUH D FRQVWUXFĠLLORU OD FXWUHPXU Ä,QVWUXFĠLXQLOH SHQWUX SUHYHQLUHD GHWHULRUăULL FRQVWUXFĠLLORU GLQ FDX]D FXWUHPXUHORU úL pentru refacerea celor degradate” publicate în 1942, QRUPH vQ FDUH D IRVW LQWURGXVă SULPD ]RQDUH VHLVPLFă a teritoriului. /D DFHD YUHPH FDOFXOXO VWUXFWXUDO VH IăFHD QXPDL OD IRUĠH JUDYLWDĠLRQDOH LDU WHQGLQĠD GH DOLQLHUH la principiile arhitecturale comune (de ex.: retragerile vQ WUHSWH GH OD IURQWRQXO VWUDGDO FX H[FHQWULFLWăĠL vQ VLVWHPXO GH WUDQVPLWHUH D IRUĠHORU D GHWHUPLQDW R YXOQHUDELOLWDWH VHLVPLFă LPSRUWDQWă [1]. 'HúL DYDULLOH DX IRVW PDMRUH QX VD SXV SUREOHPD UHDELOLWăULL IRQGXOXL FRQVWUXLW DYDULDW vQ XUPD FXWUHPXUXOXL GLQ $FHVW OXFUX D DYXW FRQVHFLQĠH grave în comportarea structurilor la cutremurul din PDUWLH FkQG VDX SUăEXúLW VDX DYDULDW vQ PDUH SURSRUĠLH GH FOăGLUL vQ %XFXUHúWL >@
10
Embed
BETON ARMAT REABILITATE PRIN DIFERITEcadre din beton armat: cadre simple, cadre cu SDQRXUL GLQ ]LG ULH FX ULJLGLWDWH PLF úL cadre cu SDQRXUL GLQ ]LG ULH FX ULJLGLWDWH PDUH 3DWUX PHWRGH
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.