The Evaluation Performance of Concrete Barrier to Resist the Collision Force on the Expressway

Abstract

From past to presents many car accidents on the expressway was found that the vehicle with over speed limit is the most cause of damaged that occurred. These causes of damage affect on properties and risk of life. In order to decreased the severity of the accident and prevented the vehicle falling, it is important to increased the road safety. Recently, there are 2 types of the concrete barriers constructed on the expressway to prevented the car crash; Which are “the New Jersey Safety-Shape barrier” and “F-Shape barrier”. This paper aims to study the evaluation of concrete barrier performance in each type to analyze the strength to resisting the collision force from the vehicle. The simulation model was used to calculate the collision force of vehicle with speed between 80 – 140 km/hr. The crash directions were 20, 25 and 45 degree which were the actual direction of the collision on the concrete barrier and based on the actual crash test standard NCHRP 350.
The collision force simulation was in the form of static load to evaluate the performance of the  concrete barrier strength and reinforcement. The evaluation of reinforcement was used to plan strengthening the concrete barriers when the performance of concrete barriers couldn’t resist the collision force enough.