Laminated rubber bearings are fixed together a superstructure and a foundation by fixing bolts in many cases. The tension force of the bolts is generated only by the moment caused by shear force of the laminated rubber bearing. Though this fact has been predicted from the results of FEM, the verification by experiments has not been made. In this paper, the experiment was carried out in order to measure the magnitude of tensile force of the bolts, and the verification results of prediction equation of maximum tensile force were present. In addition, the factor influenced in the tensile force of the bolt was also examined by FEM analysis. By the experiment and FEM, it was clarified that the maximum tensile force of the bolt received the effect of the number of the bolts and rigidity of the flange plate, etc.. And, it was shown that the largest bolt tension can be estimated the according to the proposed equation by expecting to some extent margin.
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