Analysis of Mechanical Performance of Prefabricated External Composite Wallboard
In order to analyze the mechanical properties of prefabricated external composite wall panels,the mechanical behavior of prefabrica-ted external composite wall panels was analyzed by numerical simulation,and the effects of opening size,reinforcement type and concrete type on the load displacement curve of prefabricated external composite wall panels were analyzed.The results show that the load-displacement curve of prefabricated composite wall panels is similar to S-type function,and the maximum bearing level is approximately 350kN.The varia-tion law of load-displacement curve of prefabricated external composite wall panel is relatively consistent with that of test value,and the numer-ical deviation is less than 10%,which proves the effective accuracy of the simulation model.Under all conditions,with the increase of dis-placement,the load borne by the specimen increases rapidly at first and then slowly.Reducing the opening size and increasing the strength of steel bar and concrete can effectively improve the ultimate bearing capacity and elastic stiffness of prefabricated composite wall panels.
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