Shaking-Table Test on a Two-Story Timber-Framed Masonry Structure Retrofitted with Ultra-High Ductile Concrete

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

Shock and Vibration ◽

10.1155/2017/3178032 ◽

2017 ◽

Vol 2017 ◽

pp. 1-13 ◽

Cited By ~ 1

Author(s):

Weiwei Li ◽

Weiqing Liu ◽

Shuguang Wang ◽

Dongsheng Du

Keyword(s):

Shaking Table Test ◽

Masonry Structure ◽

Shaking Table ◽

Strengthening Effect ◽

Masonry Structures ◽

Dynamic Tests ◽

Seismic Capacity ◽

Concrete Walls ◽

Improvement Effect ◽

Scaled Models

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 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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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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Shaking table test of scaled model of Protiron dry stone masonry structure

Procedia Engineering ◽

10.1016/j.proeng.2017.09.448 ◽

2017 ◽

Vol 199 ◽

pp. 3386-3391 ◽

Cited By ~ 3

Author(s):

Željana Nikolić ◽

Lidija Krstevska ◽

Pavao Marović ◽

Hrvoje Smoljanović

Keyword(s):

Shaking Table Test ◽

Masonry Structure ◽

Shaking Table ◽

Stone Masonry ◽

Scaled Model

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Dynamic Properties and Seismic Responses of the Masonry Structure Model Strengthened with BFRP Laminates

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.446-449.3279 ◽

2012 ◽

Vol 446-449 ◽

pp. 3279-3286

Author(s):

Li Hua Xu ◽

Si Zhang ◽

Xiao Bin Hu ◽

Ming Jie Zhang ◽

Fan Yang ◽

...

Keyword(s):

Shaking Table Test ◽

Dynamic Properties ◽

Masonry Structure ◽

Test Method ◽

Shaking Table ◽

Test Model ◽

Structure Model ◽

Seismic Responses ◽

Reinforced Masonry ◽

The Impact

To study the dynamic properties and seismic responses of masonry structure strengthened with Basalt Fiber Reinforced Plastic (BFRP) laminates, modal experiment and shaking table test were performed on a two-storey and two-bay masonry structure model involving constructional columns. Through the test, the dynamic properties of reinforced masonry structure were obtained, the development of cracks and degradation of stiffness of the reinforced masonry structure under earthquake were studied and the variations of displacement, acceleration, stress of this structure were analyzed. Based on the modal experiment using the impact hammer test method, a simplified numerical analysis model of the test model was proposed for modal analysis. From the shaking table test, it is concluded that BFRP laminates can slow down the degradation of structural stiffness and the development of cracks effectively, and the masonry structure reinforced with BFRP laminates has excellent seismic performance.

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