TY - JOUR
T1 - Behavior of slender, posttensioned masonry walls under transverse loading
AU - Popehn, Jennifer R.Bean
AU - Schultz, Arturo E.
AU - Drake, Christopher R.
PY - 2007/10/22
Y1 - 2007/10/22
N2 - A conceptual model of the response of slender, posttensioned masonry walls to uniformly distributed, transverse loading is introduced and verified through an experimental program. To validate the model, 12 simply supported 3.54 m (11.6 ft) tall walls with 810×100 mm (32×4 in.) cross sections were tested under monotonically increasing transverse (i.e., out-of-plane lateral) loads. Six walls were built using cored clay brick, and the remaining six using hollow concrete block. The walls were posttensioned using threaded steel bars with six walls featuring "unrestrained" tendons (i.e., neither grout nor mechanical devices were used to restrain the bars), while the other six had "restrained" bars (i.e., mechanical devices were used to restrain the bars relative to the masonry), and three magnitudes of effective prestress were investigated. Initial response to transverse loads was linear, but cracking was observed over a broad range of loading. The response of the wall specimens is traced through crack propagation, hinge formation, and development of a plastic section.
AB - A conceptual model of the response of slender, posttensioned masonry walls to uniformly distributed, transverse loading is introduced and verified through an experimental program. To validate the model, 12 simply supported 3.54 m (11.6 ft) tall walls with 810×100 mm (32×4 in.) cross sections were tested under monotonically increasing transverse (i.e., out-of-plane lateral) loads. Six walls were built using cored clay brick, and the remaining six using hollow concrete block. The walls were posttensioned using threaded steel bars with six walls featuring "unrestrained" tendons (i.e., neither grout nor mechanical devices were used to restrain the bars), while the other six had "restrained" bars (i.e., mechanical devices were used to restrain the bars relative to the masonry), and three magnitudes of effective prestress were investigated. Initial response to transverse loads was linear, but cracking was observed over a broad range of loading. The response of the wall specimens is traced through crack propagation, hinge formation, and development of a plastic section.
KW - Cracking
KW - Flexure
KW - Lateral loads
KW - Masonry
KW - Posttensioning
KW - Prestressing
KW - Walls
UR - http://www.scopus.com/inward/record.url?scp=35348817317&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=35348817317&partnerID=8YFLogxK
U2 - 10.1061/(ASCE)0733-9445(2007)133:11(1541)
DO - 10.1061/(ASCE)0733-9445(2007)133:11(1541)
M3 - Article
AN - SCOPUS:35348817317
SN - 0733-9445
VL - 133
SP - 1541
EP - 1550
JO - Journal of Structural Engineering
JF - Journal of Structural Engineering
IS - 11
ER -