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Experimental study on the seismic performance of new sandwich masonry walls

Earthquake Engineering and Engineering Vibration 2013年第1期12卷 77-86页

作者： Xiao Jianzhuang Pu Jie Hu Yongzhong Department of Building Engineering Tongji University State Key Laboratory for Disaster Reduction in Civil Eng. Tongji University

sandwich masonry walls are widely used as energy-saving panels since the interlayer between the outer leaves can act as an insulation *** types of sandwich walls are continually being introduced in research and applications,and due to their unique bond patterns,experimental studies have been performed to investigate their mechanical properties,especially with regard to their seismic *** this study,three new types of sandwich masonry wall have been designed,and cyclic lateral loading tests were carried out on five *** results showed that the specimens failed mainly due to slippage along the bottom cracks or the development of diagonal cracks,and the failure patterns were considerably influenced by the aspect *** was undertaken on the seismic response of the new walls,which included ductility,stiffness degradation and energy dissipation capacity,and no obvious difference was observed between the seismic performance of the new walls and traditional *** were made between the experimental results and the calculated results of the shear *** is concluded that the formulas in the two Chinese codes（GB 50011 and GB 50003） are suitable for the calculation of the shear capacity for the new types of walls,and the formula in GB 50011 tends to be more conservative.

关键词： sandwich wall seismic performance shear behavior cyclic loading test

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Experimental study on the compressive performance of new sandwich masonry walls

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Frontiers of Structural and Civil Engineering 2013年第2期7卷 154-163页

作者： Jianzhuang XIAO Jie PU Yongzhong HU Department of Building Engineering Tongji UniversityShanghai 200092China

sandwich masonry wall,namely,multi-leaf masonry wall,is widely applied as energy-saving wall since the interlayer between the two outer leaves can act as insulation *** types of sandwich walls keep appearing in research and application,and due to their unique connection patterns,experimental studies should be performed to investigate the mechanical behavior,especially the compressive performance.3 new types of sandwich masonry wall were investigated in this paper,and 3 different technical measures were considered to guarantee the cooperation between the two leaves of the *** on the compression tests of 13 specimens,except for some damage patterns similar with the conventional masonry walls,several new failure patterns are found due to unique connection construction *** were made between the tested compression capacity and the theoretical one which was calculated according to the Chinese Code for Design of Masonry *** results indicate that the contributions of the 3 technical measures are *** modification coefficient(γ)was suggested to evaluate the contribution of the technical measures on the compression capacity,and then a formula was proposed to evaluate the design compression capacity of the new sandwich masonry walls.

关键词： sandwich wall insulation wall connection compressive performance compression test

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