欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
为了研究方钢管再生混凝土短柱的轴压承载性能，以再生粗骨料取代率为主要变化参数，设计了11个方钢管再生混凝土试件进行轴压试验。试验结果表明：方钢管再生混凝土的破坏形态与普通方钢管混凝土相似，呈斜压破坏，再生粗骨料取代率变化对方钢管再生混凝土的承载性能影响不明显。采用统一强度理论、叠加计算理论对方钢管再生混凝土短柱的极限承载力进行了计算和分析，结果表明两种理论的计算结果均小于试验值，偏于安全，综合经济性考虑，建议采用统一强度理论的计算公式对方钢管再生混凝土短柱进行设计。最后根据试验数据拟合了方钢管再生混凝土应力-应变关系的全过程表达式。
英文摘要：
In order to study the bearing capacity of recycled aggregate concrete-filled square steel tube （RACFSST） short columns, 11 specimens with different recycled coarse aggregate replacement percentage are designed for axial compressive test. Test results indicate that the failure pattern of RACFSST short columns is the diagonal shear, which is similar to ordinary concrete-filled square steel tube short columns. The variation of recycled coarse aggregate replacement percentage does not obviously affect the bearing capacity of RACFSST short columns. According to the calculation and analysis of the ultimate bearing capacity of RACFSST short columns by Unified Strengthen theory and Superposition Calculation theory, the calculated values are both less than test values, so it is conservative. Economically, the calculation formulas proposed by Unified Strengthen theory can be applied to the design of RACFSST short columns. Finally, the stress-strain relationship of RACFSST short columns is proposed based on test data.
同期刊论文项目
同项目期刊论文
期刊信息
位置：