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허석재,조승호,정란 단국대 부설 리모델링연구소 2007 리모델링 연구소 논문집 Vol.5 No.2
In order to obtain the flexural and shear performance capacity of newly developed WAffle Slab(WAS) System, 14 full-scale 1.98mx10.00m specimens were tested under monotonic load. The Flexural performance was observed and compared with the conventional double-tee slab system using the test result. The shear performance was observed W AS slab using the test result. lt was confirmed that WAS system has enough flexural and shea capacity to carry the design load. Destruction features of test result, it appeared with bending destruction on the whole. According to steel wire increase, tolerance force's also increased. But steel wire increases to follow, it appears brittle destruction aspect. Case of shear test, the stirrup interval to be narrow maximum load appeares the tendency which comes to be destroyed.
허석재 ( Heo Seok Jae ),유한국 ( Ryu Han Gook ),최경규 ( Choi Kyoung Kyu ),조승호 ( Cho Seung Ho ),정란 ( Chung Lan ) 한국구조물진단유지관리공학회 2008 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.12 No.2
Economical efficiency of precast concrete WAffle shape slab and conventional RC floor systems investigated in terms of direct construction cost when used as a underground parking structures. The comparison showed that WAS systems require cost 2.7% more than conventional RC floor system. However, the short construction period when using WAS system reduces the indirect construction cost including the Safety management cost and maintenance cost. Consequently, total construction cost considely both direct and indirect construction cost, the WAS system is expected to be economicaly efficient.