Investigation Of Lateral Load-Resisting Performance In Prefabricated Concrete Frame With Built-in Support Wall Panel Structre

To improve the lateral resistance of the fabricated concrete frame structure with steel connections and reduce the self-weight of the enclosure wallboard,some internally braced foam concrete wallboards are arranged in the frame structure.The arrangement of internally braced foam concrete wallboard can not only improve the lateral stiffness of the structure,but also improve the adaptive height of the frame structure.In this thesis,a combination of finite element analysis and theoretical derivation was employed to conduct in-depth research on the lateral performance of this structure.The main work is as follows:(1)The finite element analysis software ABAQUS was used to analyze and compare the relevant experiments completed by the research group,verified the rationality of the parameter selection of the finite element analysis model,and compared the lateral resistance of the prefabricated concrete frame-built-in support wall plate structure with the cast-in-place concrete frame-shear wall structure and the steel frame-support structure.(2)The mechanical properties of the prefabricated concrete frame-built-in support wall plate structure were analyzed by finite element analysis method,and the influence of parameter changes such as section steel strength,shear span ratio,built-in diagonal brace thickness,and built-in wall plate thickness on the lateral resistance performance of the structure was explored.(3)Using the lateral stiffness superposition method,a simplified calculation method of lateral stiffness of prefabricated concrete frame-built-in supporting wall plate structure is proposed,and the simplified calculation formula of structural lateral stiffness is derived,which is compared with the calculation result of the calculation formula through finite element example analysis.(4)Based on the principle of stiffness equivalence,the equivalent calculation method of prefabricated concrete frame-built-in support wall plate structure is proposed,and the influence of wall panel on the overall lateral shift of the structure is explored by changing the built-in support wall plate parameters.