Thesis College of Engineering University of Rizal System-Morong 2024

The study aimed to design a bridge in Barangay Prinza, Teresa, Rizal that the researchers thought would be a great help in terms of safety and the aesthetics of the place, boosting its economy. It also aimed to provide residents and the community a bridge accessible to both vehicles and pedestrians, as opposed to the current design, which only caters to pedestrians. This study was conducted in Barangay Prinza, Teresa, Rizal during the School Year 2023–2024. The researchers used documentary analysis to gather the necessary data. They provided a bridge design based on the theories and ideas learned and proposed an innovative helical bridge for Barangay Prinza, Teresa, Rizal. This research employed a developmental research method, focusing on the relationship between materials and loads in bridges. The researchers gathered information and conducted topographic surveys. Based on the analysis of the obtained data, the bridge is designed to serve both as a tourist attraction and as a functional bridge. The study considered several objectives: to provide site investigation and analysis, to create detailed engineering plans such as Architectural Plans and Structural Plans, to prepare a detailed cost estimate, and to provide a physical model to aid in design development and documentation. Based on the calculations and interpreted data, the researchers obtained a maximum moment of 1429.70 kN-m and a maximum shear of 272.59 kN from the moving loads calculations. Assuming that the steel in compression yields, the total area of steel required is 9888.4710 mm². Furthermore, the computation of stirrups indicated that reinforcement is necessary. Through the computation of the abutment design, the actual bearing capacity was found to be 500.9584 kPa, while the allowable bearing capacity was 145 kPa. Since the actual is greater than the allowable, the bridge design incorporates piles. The computation also shows a factor of safety against sliding of 4.09. Based on the soil bearing test data, a pile depth of 15 m was computed, with total loads carried by the pile amounting to 1302.4237 kN. In the pile cap design, the researchers used a 500 mm diameter pile. Lastly, the design of the slab approach resulted in a sight distance of 63.90 m with a slope of 12.5%. The researchers recommend conducting a soil test at the exact location of the bridge. They also advise designing the helix as a load-carrying member of the structure and designing the bridge as a two-way road while maintaining a reasonable cost for the helical bridge. They further recommend using computer software such as Structural Analysis and Design (STAAD) for structural analysis and ProCore to provide an accurate total cost. Finally, they advocate using 3D printing to create a scale model for accurate visualization of the helical bridge.