AWAM International Conference on Civil Engineering 2019 (AICCE'19) - Nibong Tebal - Malaysia (2019-08-21)

THE EVALUATION OF CHANGES IN CHAMBER POSITION TO DEFLECTION OF ARCH STEEL BRIDGE IN EXTREME LOADS
Visualization of the chamber position which has a negative value on the steel frame arch bridge causes lead to a collapse hazard. Siak III Bridge is a national steel frame arch bridge as access between Pekanbaru City and other cities in Sumatra. Based on visual observations, it can be seen that the chamber position has a negative value. Monitoring in the form of measurements directly from the middle coordinates of the bridge using total station equipment. so that the chamber decreases 13 cm from the design bridge coordinate condition. Therefore, in this study, an analysis of the performance of the bridge was focused on bridge deflection. The analysis is carried out to estimate the deflection ratio of the bridge due to the load and to obtain critical conditions of the bridge structure. The purpose of this study is to evaluate the performance of the bridge structure due to the combination load during the service life of the structure with finite element analysis. The results showed that based on the maximum deflection value caused by loading (SNI) T-02-2016 the condition of the actual bridge model was -196,470 mm at the ultimate load conditions and -185,731mm under service load conditions. This is still below the maximum allowable deflection (L / 800) of 200 mm. It is hoped that this research can be an input for the government and parties related to bridge inspection in providing appropriate assessment for maintenance, repair, and improvement of bridge function.
Mrs. Widya Apriani, Dr. Reni Suryanita, Dr. Yohannes Firzal, Mr. Fadrizal Lubis