| Based on the safety estimation of bodhi project in Wuxi, this thesis set the Lingzhi structure of which shape looks like a tree as an example, and attempted to find a method to evaluate the operation safety of special structure, which could help the similar project. The author used 3D-FEM to analysis the mechanics status of the structure under loads in static state and wind state, and did checking computations according the active criterion of reinforced concrete structure. Further more, the reliability theory was imported to analysis the failure probability of the key point. The main product are stated below:(1) It is representative to analysis the Lingzhi structure in the special structure field, as complexity of its shape and loads. And the Win3D_pb programme is resultful to analysis the structure, which can post the character of beam element and plate element in 3D special structure.(2) The model was predigested by ignoring the shield part. According to the active criterion of reinforced concrete structure, the checking computations result of two loads states are available, which matched the spot situation, and indicates that certain parts of structure need reinforce measure.(3) Based on the reliability theory and the improved JC method, this thesis compiled the programme of the reliability which included the 3D-FEM analysis.(4) The quadratic multinomial was imported to replace the iterated equation in constitution of the limit state equation, which let the reliability analysis of the key point come ture.(5) This thesis discussed the effecting to the structure reliability which are caused by change of statistical parameter such as the intensity of concrete compression, the radius of beam, the loads and the area of portrait reinforcing steelbar in section.
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