Numerical modelling of the out-of-plane response of full-scale brick masonry prototypes subjected to incremental dynamic shake-table tests

2020 ◽  
Vol 209 ◽  
pp. 110298 ◽  
Author(s):  
Daniele Malomo ◽  
Rui Pinho ◽  
Andrea Penna
Keyword(s):  
Numerical Modelling ◽  
Brick Masonry ◽  
Full Scale ◽  
Shake Table ◽  
Shake Table Tests ◽  
Out Of Plane

Comparison of Failure Modes of Piping Systems With Wall Thinning Subjected to In-Plane, Out-of-Plane, and Mixed Mode Bending Under Seismic Load: An Experimental Approach

2010 ◽  
Vol 132 (3) ◽  
Author(s):  
Izumi Nakamura ◽  
Akihito Otani ◽  
Masaki Shiratori
Keyword(s):  
Dynamic Behavior ◽  
Failure Modes ◽  
Seismic Load ◽  
Piping System ◽  
Shake Table ◽  
Shake Table Tests ◽  
Wall Thinning ◽  
Piping Systems ◽  
Out Of Plane ◽  
Plane Bending

Pressurized piping systems used for an extended period may develop degradations such as wall thinning or cracks due to aging. It is important to estimate the effects of degradation on the dynamic behavior and to ascertain the failure modes and remaining strength of the piping systems with degradation through experiments and analyses to ensure the seismic safety of degraded piping systems under destructive seismic events. In order to investigate the influence of degradation on the dynamic behavior and failure modes of piping systems with local wall thinning, shake table tests using 3D piping system models were conducted. About 50% full circumferential wall thinning at elbows was considered in the test. Three types of models were used in the shake table tests. The difference of the models was the applied bending direction to the thinned-wall elbow. The bending direction considered in the tests was either of the in-plane bending, out-of-plane bending, or mixed bending of the in-plane and out-of-plane. These models were excited under the same input acceleration until failure occurred. Through these tests, the vibration characteristic and failure modes of the piping models with wall thinning under seismic load were obtained. The test results showed that the out-of-plane bending is not significant for a sound elbow, but should be considered for a thinned-wall elbow, because the life of the piping models with wall thinning subjected to out-of-plane bending may reduce significantly.

Shake-Table Tests of a Full-Scale Three-Story Reinforced Masonry Shear Wall Structure

2016 ◽  
Vol 142 (10) ◽  
pp. 04016074 ◽  
Author(s):  
A. Stavridis ◽  
F. Ahmadi ◽  
M. Mavros ◽  
P. B. Shing ◽  
R. E. Klingner ◽  
...  
Keyword(s):  
Shear Wall ◽  
Full Scale ◽  
Wall Structure ◽  
Shake Table ◽  
Shake Table Tests ◽  
Reinforced Masonry ◽  
Masonry Shear Wall

Comparison of Failure Modes of Piping Systems With Wall Thinning Subjected to In-Plane, Out-of-Plane and Mixed Mode Bending Under Seismic Load: An Experimental Approach

2007 ◽  
Author(s):  
Izumi Nakamura ◽  
Akihito Otani ◽  
Masaki Shiratori
Keyword(s):  
Failure Modes ◽  
Seismic Load ◽  
Piping System ◽  
Shake Table ◽  
Shake Table Tests ◽  
Wall Thinning ◽  
Piping Systems ◽  
Out Of Plane ◽  
Plane Bending ◽  
The Difference

In order to investigate the influence of degradation on the dynamic behavior and failure modes of piping systems with local wall thinning, shake table tests using 3-D piping system models were conducted. About 50% full circumferential wall thinning at elbows was considered in the test. Three types of models were used in the shake table tests. The difference of the models was the applied bending direction to the thinned wall elbow. The bending direction considered in the tests was either of the in-plane bending, out-of-plane bending, or mixed bending of the in-plane and out-of-plane. These models were excited under the same input acceleration until failure occurred. Through these tests, the vibration characteristic and failure modes of piping models with wall thinning under seismic load were obtained. The test results showed that the out-of-plane bending is not significant for a sound elbow, but should be considered for a thinned wall elbow, because the life of piping models with wall thinning subjected to out-of-plane bending may reduce significantly.

Shake table tests on the out-of-plane response of unreinforced masonry wallsThis article is one of a selection of papers published in this Special Issue on Masonry.

2007 ◽  
Vol 34 (11) ◽  
pp. 1381-1392 ◽  
Author(s):  
C. S. Meisl ◽  
K. J. Elwood ◽  
C. E. Ventura
Keyword(s):  
Ground Motion ◽  
Ground Motions ◽  
Unreinforced Masonry ◽  
Rigid Bodies ◽  
Shake Table ◽  
Shake Table Tests ◽  
Out Of Plane ◽  
Wall Construction ◽  
Selection Of

Given sufficient anchorage to the diaphragms, out-of-plane walls in unreinforced masonry (URM) buildings have been shown to crack above midheight and then rock as two rigid bodies. This study investigates the sensitivity of the rocking response to the type of ground motion and the quality of the wall construction. Shake table tests were conducted on four full-scale multi-wythe walls, all with a height to thickness (h/t) ratio of 12 but of varying construction quality and subjected to three different ground motions. All walls experienced cracking at less than one half of the 2005 National Building Code of Canada (NBCC) level for Vancouver, but exhibited a stable rocking behaviour without collapse beyond a ground motion 1.5 times the 2005 NBCC level.

Two-way bending out-of-plane collapse of a full-scale URM building tested on a shake table

2018 ◽  
Vol 17 (4) ◽  
pp. 2165-2198 ◽  
Author(s):  
Umberto Tomassetti ◽  
António A. Correia ◽  
Paulo X. Candeias ◽  
Francesco Graziotti ◽  
Alfredo Campos Costa
Keyword(s):  
Full Scale ◽  
Shake Table ◽  
Out Of Plane

DDBD assessment of steel CBFs using full scale shake table tests with realistic connections

2019 ◽  
Vol 154 ◽  
pp. 14-26 ◽  
Author(s):  
S. Salawdeh ◽  
T. Ryan ◽  
B.M. Broderick ◽  
J. Goggins
Keyword(s):  
Full Scale ◽  
Shake Table ◽  
Shake Table Tests

Shake-Table Tests of a Full-Scale Two-Story Shear-Dominated Reinforced Masonry Wall Structure

2016 ◽  
Vol 142 (10) ◽  
pp. 04016078 ◽  
Author(s):  
M. Mavros ◽  
F. Ahmadi ◽  
P. B. Shing ◽  
R. E. Klingner ◽  
D. McLean ◽  
...  
Keyword(s):  
Masonry Wall ◽  
Full Scale ◽  
Wall Structure ◽  
Shake Table ◽  
Shake Table Tests ◽  
Reinforced Masonry
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