PLASTIC-DAMAGE ANALYSIS OF RCC DAMS STRENGTHENED WITH STEEL FIBER REINFORCED CONCRETE IN MONOLITH FOR SEISMIC RESISTANCE
In the paper, damage failure in the water-retaining monolith of Jinan Qiao RCC dam subjected to strong ground motion is simulated by a concrete damaged plasticity model based on damage index variables of tensile stress. The effects of steel fiber reinforced concrete(SFRC) to strengthen the dam are studied by using three different dimensions of SFRC zones and three volume ratios of SFRC. According to the above combination of SFRCs applied zones and volume ratios, the variable rules of equivalent crack width , crack expansion depth, displacement response and starting crack acceleration are analyzed respectively. The comparison of calculation results shows the measure can remarkably reduce the damage zone, significantly control the extension of damage zone and effectively improve the aseismic performance of the dam.
Plastic-damage model Damage index variable of tensile stress Aseismic measure Steel fiber reinforced concrete
Jin Qiao Li Xin He Tianfu Zhou Jing
Lecturer, School of Civil Engineering and Hydraulic Engineering, Dalian University of Technology, Dalian,China
国际会议
14th World Conference on Earthquake Engineering(第十四届国际地震工程会议)
北京
英文
2008-10-12（万方平台首次上网日期，不代表论文的发表时间）