scholarly journals Unreinforced and TRM-Reinforced Masonry Building Subjected to Pseudodynamic Excitations: Numerical and Experimental Insights

2021 ◽  
Vol 147 (12) ◽  
pp. 04021107
Author(s):  
Ersilia Giordano ◽  
Elisa Bertolesi ◽  
Francesco Clementi ◽  
Manuel Buitrago ◽  
José M. Adam ◽  
...  
Keyword(s):  
Masonry Building ◽  
Reinforced Masonry

The Whittier Narrows, California Earthquake of October 1, 1987—Masonry Building Performance Survey

1988 ◽  
Vol 4 (1) ◽  
pp. 181-196 ◽  
Author(s):  
G. C. Hart ◽  
J. Kariotis ◽  
J. L. Noland
Keyword(s):  
Earthquake Response ◽  
Building Performance ◽  
Masonry Building ◽  
Masonry Buildings ◽  
Reinforced Masonry ◽  
Survey Results

The observed earthquake response of unreinforced and reinforced masonry buildings during the October 1 and 4, 1987 Whittier Narrows Earthquakes was documented in a comprehensive building survey. This paper describes the extent of the survey, the type of data collected and a preliminary summary of some survey results.

Strengthening of Historic Masonry Structures with Composite Materials

2017 ◽  
pp. 613-647 ◽  
Author(s):  
Marco Corradi ◽  
Adelaja Israel Osofero ◽  
Antonio Borri ◽  
Giulio Castori
Keyword(s):  
Composite Materials ◽  
Stone Masonry ◽  
Masonry Walls ◽  
Masonry Building ◽  
Masonry Buildings ◽  
Historic Masonry ◽  
Reinforced Masonry ◽  
Total Lack ◽  
Recent Earthquakes ◽  
Masonry Vaults

Existing un-reinforced masonry buildings made of vaults, columns and brick and multi-leaf stone masonry walls, many of which have historical and cultural importance, constitute a significant portion of construction heritage in Europe and rest of the world. Recent earthquakes in southern Europe have shown the vulnerability of un-reinforced masonry constructions due to masonry almost total lack of tensile resistance. Composite materials offer promising retrofitting possibilities for masonry buildings and present several well-known advantages over existing conventional techniques. The aim of this work is to analyze the effectiveness of seismic-upgrading methods both on un-damaged (preventive reinforcement) and damaged (repair) masonry building. After a brief description of mechanical and physical properties of composite materials, three different applications have been addressed: in-plane reinforcement of masonry walls, extrados and intrados reinforcement of masonry vaults/arches and masonry column confinement with composite materials.

Effects of Scale and Loading Rate with Tests of Concrete and Masonry Structures

1996 ◽  
Vol 12 (1) ◽  
pp. 13-28 ◽  
Author(s):  
Daniel Abrams
Keyword(s):  
Large Scale ◽  
Loading Rate ◽  
Shaking Table ◽  
Masonry Building ◽  
Reinforced Concrete Frame ◽  
Concrete Frame ◽  
Static Testing ◽  
Reinforced Masonry ◽  
Critical Components ◽  
Reduced Scale

Static and dynamic response of large-scale and reduced-scale test structures are correlated to discern effects attributable to scale and loading rate. Three case studies are presented where reduced-scale models were subjected to dynamic excitation using a shaking table. The test structures were: (a) multi-story reinforced masonry building systems, (b) two-story unreinforced masonry bearing and shear wall systems, and (c) ten-story reinforced concrete frame-wall systems. For each study, static testing of either critical components, or of the complete structural system, was done at a large scale to examine differences attributable to the modeling method, or to the loading procedure.

Simulated Seismic Laboratory Load Testing of Full-Scale Buildings

1996 ◽  
Vol 12 (1) ◽  
pp. 57-86 ◽  
Author(s):  
Frieder Seible ◽  
Gilbert Hegemier ◽  
Akira Igarashi
Keyword(s):  
Measurement Errors ◽  
Dynamic Testing ◽  
The United States ◽  
Full Scale ◽  
Seismic Load ◽  
Masonry Building ◽  
Load Testing ◽  
Tight Coupling ◽  
Limit States ◽  
Reinforced Masonry

Full-scale building systems have been tested to-date in Japan, the United States, and Europe under controlled laboratory conditions with simulated seismic loads, to determine behavior and design limit states and to calibrate predictive analytical and design models. Seismic load simulation for these tests consisted of increasing cyclic load/deformation patterns with predetermined load distribution or, where possible, of loading patterns derived experimentally from the measured building response in conjunction with updated displacement time-histories through pseudo-dynamic testing. Difficulties in the pseudo-dynamic testing of stiff multi-story buildings due to the tight coupling between individual actuators, stability problems with the numerical integration alorithms, measurement errors and error growth, as well as the control of undesirable torsional modes, were addressed with innovations in the testing hardware and in the actuator control alorithms in the first US full-scale building test of a 5-story reinforced masonry building.

scholarly journals Experimental Examination of Hollow Brick Masonry Wall with Reinforcement

2019 ◽  
Vol 8 (4) ◽  
pp. 4680-4684 ◽  
Keyword(s):  
Shear Walls ◽  
Unreinforced Masonry ◽  
Masonry Wall ◽  
Masonry Walls ◽  
Masonry Building ◽  
Brick Wall ◽  
High Wind ◽  
Load Bearing ◽  
Reinforced Masonry ◽  
Hollow Brick

The research aims at conducting a quality research with Reinforcement of a hollow brick wall. The empty internal sections significantly lower the dead load. With a better surface finish, the side of the block was cast, minimizing the cost of plastering. Several sample mixes are tested to achieve a finished surface. The respective frames were cast with and without reinforcement and the test results were compared. The blocks were used to build masonry walls and ' load-bearing strength ' of the walls was tested. It is possible to use the reinforced hollow block as a load-bearing wall. Nearly 75 percent of the deaths related to the earthquake in the last century,Buildings have collapsed, the majority of which (more than 70 percent)is due to the collapse of buildings made of masonry. Most of the properties in India are Unreinforced Masonry (URM) buildings that are weak and vulnerable even under moderate earthquakes and that function on the wall due to high wind forces, causing severe damage to high wind loads and it is recognized that Reinforced Masonry Building has many advantages over unreinforced masonry building.The use was very limited in Indian building practices and there are still no approved codes and shear walls were used in most constructions, even in mild earthquakes, instead of reinforced masonry walls

Reinforced Masonry Building Seismic Response Models for ASCE/SEI-41

2018 ◽  
Vol 144 (1) ◽  
pp. 04017175 ◽  
Author(s):  
Mohamed Ezzeldin ◽  
Wael El-Dakhakhni ◽  
Lydell Wiebe
Keyword(s):  
Seismic Response ◽  
Masonry Building ◽  
Response Models ◽  
Reinforced Masonry

Retrofitting of masonry building with reinforced masonry ring-beam

2009 ◽  
Vol 23 (5) ◽  
pp. 1892-1901 ◽  
Author(s):  
A. Borri ◽  
G. Castori ◽  
A. Grazini
Keyword(s):  
Masonry Building ◽  
Reinforced Masonry
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