Experimental assessment of the in-plane/out-of-plane interaction in unreinforced masonry infill walls

被引:113
作者
Ricci, Paolo [1 ]
Di Domenico, Mariano [1 ]
Verderame, Gerardo M. [1 ]
机构
[1] Univ Naples Federico II, Dept Struct Engn & Architecture, Via Claudio 21, I-80125 Naples, Italy
关键词
URM infill wall; Out-of-plane; Experimental; In-plane/out-of-plane interaction; Out-of-plane strength; Out-of-plane response; BRICK MASONRY; RC FRAMES; CAPACITY; INPLANE; PERFORMANCE; BEHAVIOR; TESTS;
D O I
10.1016/j.engstruct.2018.07.033
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
During earthquakes, unreinforced masonry (URM) infills are subjected to in-plane (IP) and out-of-plane (OOP) actions. Displacement demands in the IP direction affect the OOP response to seismic accelerations and vice versa: this phenomenon is called IP/OOP interaction. In this study, experimental tests aimed at investigating the IP action effects on the OOP response of thin URM infills are presented. Three URM infills in reinforced concrete frames are first cyclically loaded in-plane up to three different drift levels. Then, on each test specimen, monotonic OOP tests are performed. Tests' results are compared to the pure OOP response of an IP-undamaged reference specimen. For each specimen, the evolution of cracking pattern during the IP and the successive OOP test is presented and discussed. Data concerning the variation of secant stiffness and force at first OOP macro-cracking and at peak load due to the increasing IP damage are presented. Based also on experimental tests presented in the literature, empirical relationships relating the reduction of force and secant stiffness at first macro-cracking and peak load due to the IP damage to the maximum interstorey drift ratio attained during IP tests are proposed. Finally, some considerations concerning the different post-peak behaviour, up to collapse displacement, of IP-undamaged and IP-damaged infills are reported.
引用
收藏
页码:960 / 978
页数:19
相关论文
共 46 条
[1]   Effect of in-plane damage on out-of-plane strength of unreinforced masonry walls [J].
Agnihotri, Pawan ;
Singhal, Vaibhav ;
Rai, Durgesh C. .
ENGINEERING STRUCTURES, 2013, 57 :1-11
[2]  
Angel R., 1996, EARTHQ SPECTRA, V12, P825
[3]  
Angel R, 1994, RESERACH SERIES, V589, P94
[4]  
[Anonymous], 2014, 9 INT MAS C GUIM POR
[5]  
[Anonymous], 1998, FEMA306 ATC
[6]  
[Anonymous], 2000, Prestandard and Commentary for the Seismic Rehabilitation of Buildings
[7]  
[Anonymous], 1997, 032113125TNOBOUWNO97
[8]  
[Anonymous], 2013, P 15 ANIDIS ING SISM
[9]  
ASCE, 2013, ASCE/SEI 41-13
[10]   Numerical modelling of out-of-plane response of infilled frames: State of the art and future challenges for the equivalent strut macromodels [J].
Asteris, P. G. ;
Cavaleri, L. ;
Di Trapani, F. ;
Tsaris, A. K. .
ENGINEERING STRUCTURES, 2017, 132 :110-122