Seismic Strengthening of Masonry Buildings Using Carbon Fiber-Reinforced Polymers

Volume 3 - Issue 4

Arkady Granovskiy* Bulat Dzhamuev and Oleg Simakov

Received: July 10, 2019;   Published: July 18, 2019

DOI: 10.32474/TCEIA.2018.03.000167

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Abstract

The experimental study on evaluation of seismic resistance of the large-scale model of a two-story fragment of brick building from ceramic bricks on cement mortar was conducted. The dynamic testing of the prototype was carried out on the two-component vibrio plat form, where seismic impacts with the intensity of 7 to 9 according to MSK-64 scale were modelled. During the tests the constant load on floors – 4,5kH/m2 was simulated using dynamic forces to the prototype were simulated. Different options for strengthening of load-bearing brick walls concrete blocks. The dimensions of the two-storey fragment are 2,3x × 1,56 × 3,0m. Using scrims from carbon fibre the slabs at each floor were combined into a single hard disk. During the tests, the horizontal and vertical with composite fabrics, scrims and nets, were considered. Upon the nature of the hysteresis curves the zones of elastic performance of masonry walls at the moment of cracks and destruction were determined. The optimal schemes of brick walls’ strengthening were proposed with the use of ribbons, scrims and nets from carbon cloth. The possibility to increase the stiffness of the slabs disk with composite materials was shown.

Keywords: Large-scale model of building; Brick masonry; Vibration platform; Hysteresis curve; Composite carbon ribbon and net

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