This study aims to analyze the flexural capacity of RC without concrete in a tension cross-section using an experimental method. The number of specimens is three pieces, namely a spiral reinforced concrete beam (SBC) and a vertical reinforced concrete beam (CBN); both of these blocks are without concrete in the cross-section of the reinforcement and 60D tensile steel reinforcement in the support area, where D is the primary diameter, and a conventional concrete beam as the control beam (CB). The beam size is 3100×150×200 mm. The beams are supported by simple supports with a span of 3000 mm. The concrete in the structural beam elements, which work optimally to withstand the load, is the outermost fibre part of the side, while the concrete on the tension side does not have a direct role in determining the magnitude of the resisting moment. Therefore, the quality of the concrete in the concrete beam section must be optimized, while the concrete in the tension section must be minimized. Eliminating concrete in tension areas reduces the construction's self-weight and use of concrete-making materials. The main variables in this research are bending behaviour and crack pattern. The beam specimens were tested with two-point loading monotonically. By observing the crack pattern and failure mode, the results showed an increase in the capacity load of SBC by 21.58% CBN but a decrease of 27.57% compared to the CB control beam. Flexural cracks and beam failures resembled under-reinforcing. The flexural capacity was analyzed based on static analysis and then validated by calculating the ratio between the theoretical nominal moment and the experimental moment. This finding shows that changing the conventional shear reinforcement model to spiral can increase the flexural of the beam without concrete in the tension cross-section. Doi: 10.28991/CEJ-2022-08-11-014 Full Text: PDF

The building construction will decrease with an increased service life of the structure. The school building for SMP Negeri 2 Meulaboh West Aceh is one of the school buildings that need attention from the government. Much of the building damage is due to age and improper maintenance methods. This study aimed to determine the maintenance priorities of the structural and architectural elements of the SMP Negeri 2 Meulaboh school building. This study used the descriptive qualitative method. Primary data was collected through surveys, interviews, documentation, and distributing questionnaires, while secondary data was collected from related institutions or agencies. Data analysis was processed using the Analytical Hierarchy Process (AHP) method. The selection of sample respondents is not random/nonrandom sampling but is carried out using purposive sampling. The analysis results of the order of priority for the maintenance of structural elements the priority, namely, the column, the type of damage to the chipped concrete cover gets the highest priority with a priority value of 0.359. While the second priority is for architectural elements, namely ceilings, walls, doors, windows, and floors, the damage to fading ceiling paint gets the lowest priority with a value of 0.016.