ABSTRACT
The concrete self-anchor suspension bridge is popular in engineering at present, but because of the existing unsolved problems, the construction control of it is difficult. There are some reports about bridge failure of this type due to poor bridge line (Xu 2009, Zhang 2005). Good control of bridge line or not is the key effect of success or failure of concrete selfanchor suspension bridge control. Affected by many uncertain factors, the deviation between bridge line and ideal state line is inevitable. How to identify and deviation adjust the uncertain factors during the construction process, and give some effective measures are very important. In order to make the bridge line meet with ideal state line as much as possible, the parameter sensitivity analysis on the bridge line of concrete self-anchor suspension bridge must be carried out. And further study about the effect of every factor on bridge line of this type should be done to solve the complex problem of the bridge line control (Liang 2012).
