International Journal of Advances in Scientific Research and Engineering (ijasre) E-ISSN : 2454-8006 DOI: 10.31695/IJASRE.2020.33833 Volume 6, Issue 6 June - 2020 www.ijasre.net Page 33 Licensed Under Creative Commons Attribution CC BY-NC Nonlinear Time History Analysis of Anti Seismic Device on Highway Bridges M. Firman Jauhari, Arie Febry Fardheny and Dr. Eng. Irfan Prasetia Magister Study Program of Civil Engineering, Lambung Mangkurat University, Indonesia Lambung Mangkurat University, Indonesia Indonesia _____________________________________________________________________________________ ABSTRACT There are many earthquake suppression technologies offered by experts, one of them is the use of Lead Rubber Bearing (LRB) in civil buildings. LRB works by reducing the dynamic load acting on a bridge caused by seismic loads. It diverts the load that works through the dynamic system by maintaining a balance between the force and displacement that occurs. The purpose of this study is to find out how much influence are the use of LRB on the reduction of seismic loads received by a flyover. This study compares the structure of the highway bridge using LRB to those non- LRB, where the results show that the use of LRB can reduce the base shear occurs in bridge piers and is able to increase energy attenuation, but causes additional displacement and acceleration. Key word: Lead Rubber Bearing (LRB), Time history, Base shear, Displacement, Acceleration. 1. INTRODUCTION An earthquake is a recurring geological event that becomes a serious problem in many countries. An earthquake with a destructive force can cause many losses such as fatalities, damaged infrastructure, loss of material, stalled economy and so on (Park and Hamza, 2018). Therefore, anticipatory measures are needed to reduce the adverse effects of these natural events, one of which is to build earthquake-resistant building structures. One application of earthquake resistant structures is to install anti-seismic devices on the structure. In its application, one way to anticipate adverse effects caused by earthquakes on building structures is to install anti-seismic devices. The working principle of anti-seismic device is to separate the movement of the super structure and the sub structure due to horizontal forces caused by the earthquake load so that the movement of the soil distributed by the sub structure can be muted in such way as to reduce its destructive power to the super structure (Dezfuli, et al, 2016) (Himeno, 2018). One of the most common anti-seismic devices used today is the earthquake resistant rubber bearing Lead Rubber Bearing (LRB). LRB is a rubber bearing designed from rubber combined with steel plates and a lead core placed in the middle of the bearing, in order to make the LRB has high damping capability, horizontal flexibility and very rigid in the vertical direction, which is why LRB is strong enough to withstand the vertical loads that burden it and able to reduce earthquake forces that occur. (Buckle, et al. 2006) (Naeim and Kelly, 1999) (Nuraini, et al. 2018). The LRB’s profile can be seen in Figure 1. Figure 1. Lead Rubber Bearing