| Summary: | The construction of lanes for the installation of reinforced concrete structures using holes are used for multi-storey buildings, which is required for utility networks such as power lines, piping, telephone cables, air conditioners, etc. The utility networks are usually sited in the space above the ceiling or attached by installation to the beam. Consequently, it can be reduced by the height of the rooms in the buildings and as well as debauched aesthetically. An alternative design is needed, and one of which would be implemented by utilizing spaces on the beam structures. In this research, we used an experimental method by performing analytical calculations initially, then the results from the laboratory were checked for collapse model on the test object I, which is a flexural collapse model. The collapse model on Test objects II and III was a shear failure model. Further, the test specimen III of 3-hollow T-beam cross section was feeblest from the other cross-section, with the type of shear failure occurring on the holes of the maximum shear area.
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