コンクリートの支圧応力-めり込み変形特性に関する研究 : 支圧強度式の提案と許容応力度の検証

概要

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Although information on bearing strength of ordinary strength concrete is provided for design of concrete structures, those of high strength concrete for high-rise buildings and low strength concrete used in existing buildings subjected to seismic retrofitting are not yet investigated sufficiently. In this paper, bearing strength tests are carried out using specimens with compression strength from 10 N/mm^2 to 100 N/mm^2. Following main results are obtained. 1) A design equation to estimate bearing strength of concrete based on tensile strength is derived. 2) Allowable bearing stress provided in AIJ standard for prestressed concrete structures is roughly corresponding to elastic limit of bearing stress-displacement relationships. 3) Influence of concrete strength and bearing area ratios on bearing stress-displacement relationships are obtained qualitatively.
一般社団法人日本建築学会の論文
2010-03-27