ANALYSIS OF AN IRREGULAR PLAN LONG-SPAN CAST-IN-SITU
PRESTRESSED CONCRETE HOLLOW FLOOR STRUCTURE
LIU Hang1, JING Jie2, YANG Xue-zhong1, LI Jun-ping3
1.Beijing Building Construction Research Institute,100039，Beijing，China；2.Architectural Design and Research Institute of Tsinghua University,100084,Beijing，China；3.Beijing University of Civil Engineering and Architecture,100044，Beijing，China
Abstract：
In order to accurately calculate the internal force and deformation of the hollow floor structure under loads, the calculation results of finite entity element analysis models and the simplified calculation models, such as the analogue slab method, analogue cross beam method and cross rib beam method, etc., are compared and analyzed. The result shows that favorable isotropic property is available when concrete hollow floor structures are arranged symmetrically by using box filler. When the concealed beam or analogue beam connected to the frame column is calculated by using analogue beam method and cross rib beam method, the calculation result is usually much greater and should not be used directly. Based on this result, the principle and method for arrangement of prestressed steel bar is discussed in depth.
LIU,HANG,JING et al. ANALYSIS OF AN IRREGULAR PLAN LONG-SPAN CAST-IN-SITU
PRESTRESSED CONCRETE HOLLOW FLOOR STRUCTURE[J]. Architecture Technology, 2011, 42(02): 115-119.
