A Fault Diagnosis Expert System Based on Fault Tree for Concrete Construction XIA Hong-xia,CAO Bin,ZHAO Jing-jing,ZHONG Luo,HU Shu-guang(School of Computer Science and Technology, Wuhan University of Technology, Wuhan 430070, China)The adoption of diagnosis expert system in concrete construction can direct the workers to solve the construction problems quickly and exactly. The basic method of fault diagnosis and fault tree was generally introduced. It was illustrated that the process of using expert knowledge to construct the fault tree model, combine the code representation and static pointer representation to implement in detail. Finally, the expert system based on the forward reasoning was implemented.concrete construction; fault diagnosis expert system; fault tree; forward reasoning