Mechanical Behaviour Experimental Study Of Multi-ribbed Composite Wall

Since the reform and opening, residence construction has been speedily developed. Due to masonry structure's high self-weight and low aseismic capacity, the total height of the building and the number of storeys are strictly limited. On the other hand, masonry structure's industrial level, productivity and technique content are low while its energy and material consumption is high. Civil Engineering New Technology Research Institute of Xi'an University of Architecture and Technology, meeting the nation's call for wall reform, industrialization and continuable progress, invented a new structural system-Multi-Ribbed Slab Structure. The new structure is characterized by low self-weight and high strength, high efficiency in saving energy, construction convenience and low cost. Therefore, Multi-ribbed Slab Structure, as a new structural system, is very potential. Previous study is much fruitful. The paper probed test research and studied load-resisting mechanism ,mechanical property of the composite wall under under horizontal loads. This paper will be helpful for the deeper theoretical study and engineering apply on multi-rib wall structures.First of all, the paper carried out test study on the behabior of half-scale,six single-story, single-bay, two double-story, single bay and three double-story, double-bay of masonry infilled reinforced concrete(RC) frame. The paper analyzed the test results, including analysis on mechanical property , deformation capacity, failure mode, load-resisting mechanism of the composite wall under under horizontal loads. The paper also compared infilled RC frames with bare RC frames. Secondly, by means of Finite Element Method (FEM), the paper studiedstress and strain distribution in infilled RC frames under horizontal loads. Lastly, the paper, based on mechanical analysis, proposed a new technique for masonry infilled RC frames and by contrast with experimental values, the result of simple method is acceptable.