The Research On Ship Collision Risk Assessment Of Jiashao Bridge

Transportation safety is always the subject of traffic engineering. With the rapid development of China’s economy, the construction of a bridge across the fairway is becoming more and more, while also moving in large ship building industry developed rapidly to meet the needs of economic development. In the 21st century, China has built a lot of bridges across the waterway, the bridge is an important part of the land traffic, but it is on the pier waterway obstructions. This contradiction makes the boat hit the bridge accident occurred more frequently, and therefore the safety of the ship hit the bridge in front of the bridge became an important topic workers.Our scholars on the bridge of ship collision risk assessment carried out some basic research, and achieved some results, but it can not fully meet the actual course of the growing about the bridge construction. Ship-Bridge Collision will bring irreparable damage, prediction and prevention of ship collision accident occurred bridge event are of great significance. Therefore, to carry out a risk assessment for the research boat hit the bridge is necessary.Probabilistic risk assessment methods is the main way to assess the risk of Ship-Bridge Collision, a focus of this paper is on one of the ship collision probability calculation model to study the existing model by comparing the current analysis, put forward their own views. Another focus of this paper is to use the boat hit the bridge framework for risk assessment carried out on the bridge Jiashao ship collision risk assessment, drawn comparisons meaningful conclusions.(1) Based on the domestic and foreign ship collision probability calculation model parameter analysis, combined with statistical information on relevant historical probability KUNZI model yaw replaced with yaw function, while the introduction of visibility correction factor of probability formula KUNZI models were correction, draw the boat hit the bridge that contains the visibility impact probability correction formula.(2) On the basis of in-depth analysis KUNZI model, the yaw of the ship hit the pier long side and the short side of the different situations are given their ship collision probability calculation formula.(3) Taking into account the actual ship hit the bridge during the ship hit a certain point of view exist, and AASHTO specifications do not consider the impact angle, impact angle parameters associated with the introduction of a parameter to the U.S. specification ship collision force calculation formula was amended been corrected ship collision force calculation formula.(4) Jiashao Bridge ship collision risk assessment carried out by calculating the probability of each pier ship collision in the final calculation of the probability Jiashao collapsed bridge, determine their boat hit a high level of risk and risk.