摘要
配制了C30、C50两个强度等级的自密实混凝土,通过自密实混凝土棱柱体轴心抗压强度试验得到了其峰值应变、极限应变和应力-应变曲线。通过对试验结果的分析,建立了自密实混凝土应力-应变全曲线方程,并在此基础上给出了受弯构件受压区等效应力图形。通过试验梁的承载力试验值与理论值的对比,二者吻合较好,验证了所建立的应力-应变曲线方程的正确性,为自密实混凝土本构关系研究提供参考。
Two kinds of self-compacting concrete of C30 and C50 are made according to the manual of SCC design and construction. Through the prismatic compression experiment, peak strain, utmost strain and stress - strain curves are obtained and through the analysis of experimental result the formula for stress- strain curves is established. Also on the basis of that the figure of equivalent stress in compression region is proposed. Subsequently the correctness of the stress-strain curves is testified through the comparison of experimental and calculative bearing capacity value which are quiet approach. These conclusions will provide references for the stress-strain curves research of SCC.
出处
《低温建筑技术》
2008年第5期70-72,共3页
Low Temperature Architecture Technology
