Abstract

In the building construction above public lines such as railroads, it is necessary to assume the accident by falling objects such as column members lifted by cranes. Even if RC slabs prevent perforation caused by falling objects during construction, scattering concrete debris may cause serious damage to the public space below the slabs. This study suggests an anchoring system to control the debris scattering by folding up the end of steel deck plates which are used as permanent formworks. Impact test was performed with specimens that have an anchoring system or not with changing the drop height as parameters. As a result, the anchoring system prevents debris from scattering in the case that the falling height was twice as high as the case without the anchoring system. In addition, finite element analysis was also performed to evaluate the result of the impact test. The result showed the analysis could evaluate the debris scattering of both the specimen which has the anchoring system or not.