Development of Structural Design Procedure of Buildings Harmonizing Damage Control Seismic Design and Fire Design Based on Constitutive Laws of Materials and Deformation Analyses

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Steel and concrete as structural materials used for buildings were investigated at elevated temperatures, to design building structures not to collapse, and to predict damage on structural members during and after fire. Stress - strain relationships of these materials, and their bond - slip relationships were idealized on the basis of experiments and numerical analyses. Beam - column assemblages were tested at elevated temperatures. The results were compared with the numerical analysis ones. A new test method using a small furnace was developed for a beam-column subassemblage. Finally, an influence of crack on temperature distribution in reinforced concrete members was experimentally and analytically studied.