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Behavior of steel frame-reinforced concrete infill slit walled system

Mi Xufeng(School of Civil and Architecture Engineering,Jiangsu University of Science and Technology,Zhenjiang Jiangsu 212003,China)  
Aimed at the behavior of steel frame-reinforced concrete infill slit walled system,the material nonlinear behavior of concrete was considered,and steel frame-reinforced concrete infill slit walled system was analyzed by FEA.It was found that the cracks occurred around the silts in the loading process.For wall bears the constrained axial force which is generated by expansion of concrete,a lot of small cracks were distributed in wall.From the stress and crake figure of silts-wall,the deformation of shear walls was mainly bending deformation,which were similar to wall-columns.In the loading process,the lateral stiffness of slits-wall decreased slowly so that it can work together with steel frame and be suitable for use in the earthquake zone.
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