In-Plane Strengthening Effect of Prefabricated Concrete Walls on Masonry Structures: Shaking Table Test

The improvement effect of a new strengthening strategy on dynamic action of masonry structure, by installing prefabricated concrete walls on the outer facades, is validated by shaking table test presented in this paper. We carried out dynamic tests of two geometrically identical five-story reduced scaled models, including an unstrengthened and a strengthened masonry model. The experimental analysis encompasses seismic performances such as cracking patterns, failure mechanisms, amplification factors of acceleration, and displacements. The results show that the strengthened masonry structure shows much more excellent seismic capacity when compared with the unstrengthened one.

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Shaking Table Test Analysis of Bottom-Business Multi-Story Masonry Structure in Small and Middle Towns in the Southward

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.580-583.1463 ◽

2014 ◽

Vol 580-583 ◽

pp. 1463-1466

Author(s):

Yong Duo Liang ◽

Xun Guo ◽

Hua Wei Yi ◽

Yong Zhen Li ◽

Jin Zheng Jiang

Keyword(s):

Shaking Table Test ◽

Masonry Structure ◽

Shaking Table ◽

Earthquake Simulation ◽

Seismic Capacity ◽

Test Analysis ◽

Earthquake Resistant ◽

Scale Models ◽

Longitudinal Wall ◽

Reduced Scale

Bottom-business multi-story masonry structure is widely used in small and middle towns in the southward in China. In the downtown of Beichuan county which affected by Wenchuan earthquake, more than 80% of this kind of building collapsed. But the Apartment of Beichuan Telecommunication Bureau behaved well earthquake resistant capacity with a moderate damage in the earthquake. The obvious difference between this building and others is the setting of winged columns in the front longitudinal wall of the first floor. For proving the influence of these members in the structure seismic capacity, the earthquake simulation shaking table test of 2 1/5 reduced scale models were designed and carried out. The models dynamic response, acceleration, displacement and strain were measured and collected, that model with winged columns behave well was testified. And the reinforcement method of balancing stiffness and increasing ductility is put forward. The results provide a foundation for the retrofitting design of the existing houses.

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Shaking table test study on a steel frame with autoclaved aerated concrete walls

ce/papers ◽

10.1002/cepa.876 ◽

2018 ◽

Vol 2 (4) ◽

pp. 283-289

Author(s):

Caiyuan Cheng ◽

Liusheng He

Keyword(s):

Shaking Table Test ◽

Steel Frame ◽

Shaking Table ◽

Concrete Walls ◽

Autoclaved Aerated Concrete ◽

Test Study ◽

Aerated Concrete

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DEVELOPMENT OF A SIMPLIFIED SHAKING TABLE TEST METHOD FOR REINFORCED CONCRETE STRUCTURES USING ULTRA SMALL-SCALED MODELS : Reproduction of restoring force characteristics of reinforced concrete members by ultra small-scaled models

Journal of Structural and Construction Engineering (Transactions of AIJ) ◽

10.3130/aijs.69.147_3 ◽

2004 ◽

Vol 69 (584) ◽

pp. 147-152

Author(s):

Yuki SAKAI ◽

Noriko TOKUI ◽

Yasushi SANADA ◽

Naruhito YAMAUCHI ◽

Yoshiaki NAKANO ◽

...

Keyword(s):

Reinforced Concrete ◽

Shaking Table Test ◽

Concrete Structures ◽

Test Method ◽

Shaking Table ◽

Reinforced Concrete Structures ◽

Restoring Force ◽

Concrete Members ◽

Scaled Models ◽

Force Characteristics

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Shaking table test on building in masonry structure with construction waste recycled brick

World Journal of Engineering ◽

10.1260/1708-5284.11.4.357 ◽

2014 ◽

Vol 11 (4) ◽

pp. 357-364

Author(s):

Hui Su ◽

Jian Wang ◽

Xinpei Jiang ◽

Yang Tan

Keyword(s):

Seismic Behavior ◽

Shaking Table Test ◽

Concrete Block ◽

Masonry Structure ◽

Recycled Aggregate Concrete ◽

Shaking Table ◽

Recycled Aggregate ◽

Test Results ◽

Scaled Model ◽

Construction Waste

Based on the shake table test on "tie column-ring beam-cast-in-place slab" construction waste recycled brick masonry structure, a 1/3 scaled model of 4 stories is tested to analyze the seismic behavior of the multi-storey masonry structure. The test is conducted with EL-Centro seismic wave, Taft wave and artificial wave to simulate the damages observed and the seismic response under different earthquake levels. On the basis of test results, the seismic performance of the model is good and the overall structure could satisfy seismic fortification requirements in the region of intensity 8. At the same time, there was no obvious difference between this masonry structure and recycled aggregate concrete block masonry structure. The lintel of the door and window damage seriously. The base damages more easily than the superstructure. Masonry structure with construction waste recycled brick can satisfy the requirement of the masonry structure buildings in eight degree of aseismatic design area.

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Effect of Roof and Diaphragm Connectivity on Dynamic Behaviour of the PP-band Retrofitted Adobe Masonry Structures

Periodica Polytechnica Civil Engineering ◽

10.3311/ppci.12247 ◽

2018 ◽

Author(s):

Navaratnarajah Sathiparan

Keyword(s):

Shaking Table Test ◽

Masonry Wall ◽

Shaking Table ◽

Experimental Program ◽

Masonry Structures ◽

Test Results ◽

Structural Components ◽

Masonry Unit ◽

Seismic Safety ◽

Lateral Drift

This paper discusses the shaking table test results of three PP-band (Polypropylene band) retrofitted quarter scale one-story masonry house models with different roof conditions. Better connections between masonry wall and roof connection are one factor to improve the seismic safety of the masonry houses. Past studies show that PP-band retrofitting improves the integrity of structural components and prevent the collapse of masonry structures during an earthquake. Although the effect of masonry unit type, surface plastering, the pitch of the PP-band mesh, PP-band connectivity in mesh and tightness of the mesh attachment to walls were studied by experiment program, the effect of the roof and its diaphragm connectivity on PP-band retrofitted masonry structure is nonexistent. Therefore, an experimental program was designed and executed for an understanding the effect of the roof and its connection on the dynamic behavior of the PP-band retrofitted box-shaped masonry house models. Results reveal that the PP-band retrofitted models with proper roof diaphragm improves the seismic behavior with respect to lateral drift, shear resistance and ductility.

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Dynamic Experiments on a 1/4 Scale New-Styled Korean Traditional Wooden House

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.598.743 ◽

2014 ◽

Vol 598 ◽

pp. 743-746 ◽

Cited By ~ 1

Author(s):

Yeong Min Kim

Keyword(s):

Natural Frequency ◽

Shaking Table Test ◽

Shaking Table ◽

Test Model ◽

Dynamic Tests ◽

Analysis Model ◽

Dynamic Experiments ◽

Wooden House ◽

Scale Test ◽

The Impact

This research performed dynamic tests on a 1/4 scale test model of a new-styled Korean traditional wooden house to study its dynamic characteristics. The dynamic tests were performed both by the impact hammer test and the shaking table test of an El-centro N-S seismic wave. Together with these dynamic tests, structural analysis was also performed and the results were compared. The natural frequency from the impact hammer test was slightly higher than that from the shaking table test. The natural frequency from the eigenvalue analysis was about 16~33% lower than that from both the impact hammer test and the shaking table test. It can be deduced that the rotational stiffness of joints of analysis model were somewhat underestimated than those of experiment model.

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A Full-Scale Shaking Table Test on Philippine Concrete Hollow Blocks (CHB) Masonry Houses

Journal of Disaster Research ◽

10.20965/jdr.2015.p0113 ◽

2015 ◽

Vol 10 (1) ◽

pp. 113-120 ◽

Cited By ~ 2

Author(s):

Hiroshi Imai ◽

◽

Chikahiro Minowa ◽

Angelito G. Lanuza ◽

Henremagne C. Penarubia ◽

...

Keyword(s):

Developing Countries ◽

Shaking Table Test ◽

Evaluation Methods ◽

The Philippines ◽

Full Scale ◽

Shaking Table ◽

Masonry Structures ◽

Seismic Evaluation ◽

Hollow Block ◽

Traditional Manner

Most of the human casualties in past earthquakes were attributed to the collapse of buildings, particularly masonry constructions in developing countries. Most of these buildings are categorized into “Non-Engineered Construction.” In effect, these structure are spontaneously and informally constructed in various countries in a traditional manner without any or with little intervention in their design by qualified architects and engineers. Unfortunately, these types of buildings have been extensively constructed in most of the seismic prone areas in developing countries. Therefore, the safety of “Non-Engineered Construction” has become one of the most urgent issues in recent years. The concrete hollow block (CHB) masonry structures have recently become common residential structures in the Philippines. A full-scale shaking table test on CHBmasonry structures of Philippine ordinary houses was conducted in Japan. This experiment aims to acquiring a better understanding of the behavior of these structures during major earthquakes, and its results will be used to produce simple seismic evaluation methods as awareness tools, and to disseminate information on safer construction of houses in the Philippines.

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Discussion on Masonry Structure Model Mechanical Property Test

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.238.659 ◽

2012 ◽

Vol 238 ◽

pp. 659-662 ◽

Cited By ~ 1

Author(s):

Gong Lian Chen ◽

Lin Jun Si

Keyword(s):

Shaking Table Test ◽

Mechanical Test ◽

Dynamic Test ◽

Masonry Structure ◽

Shaking Table ◽

Structure Model ◽

Loading Test ◽

Mixture Ratio ◽

Static Test ◽

Masonry Material

The problems in the mechanical test of masonry structure model were discussed in this paper, including the masonry material, similar relationship, shaking table test device, judgment of wall cracking and number of cycles in pseudo-static loading test. The conclusions are: (1) for the masonry material mechanical test, usually the size decreased the strength increased, but if the laying method and appropriate adjustments in the process of the test mixture ratio, the size effect can be greatly reduced; (2) In the dynamic test of the masonry structure, for the gravity distortion model, the common way is the external prestressing method, but in this method the tension force is not constant, which is differ from the actual situation; (3) The wall cracking can be judged when the main tension crack of the wall appeared; (4) The loading cycle in the pseudo-static test of masonry wall would be twice.

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Study on a Simple Self-Resetting Sliding Isolation

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.250-253.2558 ◽

2011 ◽

Vol 250-253 ◽

pp. 2558-2561

Author(s):

Jian Min Jin ◽

Ping Tan ◽

Yu Hong Ma ◽

Xue Zhen Zhuang ◽

Chao Yong Shen

Keyword(s):

Theoretical Analysis ◽

Shaking Table Test ◽

Masonry Structure ◽

Brick Masonry ◽

Shaking Table ◽

Isolation System ◽

Rubber Bearing ◽

Sliding Isolation

This paper presents a simple Self-resetting sliding isolation system, which is composed of graphite sliding device and simple rubber bearing. Theoretical analysis is carried out. Shaking table test for a typical brick masonry structure in village of China is performed on a 1:4 scale. Results show that the proposed new isolation system can achieve a favorable level of performance.

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