水利与建筑工程学报
水利與建築工程學報
수리여건축공정학보
TECHNIQUE OF SEEPAGE CONTROL
2015年
3期
60-65
,共6页
双层高强螺旋箍筋%ABAQUS%圆柱%强度%延性
雙層高彊螺鏇箍觔%ABAQUS%圓柱%彊度%延性
쌍층고강라선고근%ABAQUS%원주%강도%연성
double-layered high-strength spiral stirrup%ABAQUS%circular columns%strength%ductility
为了研究双层高强螺旋箍筋约束混凝土短柱在轴压作用下的强度和延性，在国内外学者对约束混凝土研究的基础上，分析其应力－应变曲线和破坏形态，进而探讨箍筋形式和配箍特征值（综合影响因素）对双层高强螺旋箍筋约束混凝土短柱强度和延性性能的影响。研究结果表明：模拟与试验结果吻合较好，增大双层高强螺旋箍筋约束混凝土试件的配箍特征值对提高钢筋混凝土圆柱的极限承载力和延性有明显效果，结果偏于安全。
為瞭研究雙層高彊螺鏇箍觔約束混凝土短柱在軸壓作用下的彊度和延性，在國內外學者對約束混凝土研究的基礎上，分析其應力－應變麯線和破壞形態，進而探討箍觔形式和配箍特徵值（綜閤影響因素）對雙層高彊螺鏇箍觔約束混凝土短柱彊度和延性性能的影響。研究結果錶明：模擬與試驗結果吻閤較好，增大雙層高彊螺鏇箍觔約束混凝土試件的配箍特徵值對提高鋼觔混凝土圓柱的極限承載力和延性有明顯效果，結果偏于安全。
위료연구쌍층고강라선고근약속혼응토단주재축압작용하적강도화연성，재국내외학자대약속혼응토연구적기출상，분석기응력－응변곡선화파배형태，진이탐토고근형식화배고특정치（종합영향인소）대쌍층고강라선고근약속혼응토단주강도화연성성능적영향。연구결과표명：모의여시험결과문합교호，증대쌍층고강라선고근약속혼응토시건적배고특정치대제고강근혼응토원주적겁한승재력화연성유명현효과，결과편우안전。
High-strength stirrup (cold drawn high-strength steel wire) has been developed ,but there is only a few studies on the strength and ductility of double-layered high-strength spiral stirrup confined concrete circular columns at home and abroad .In order to study the strength and ductility of double-layered high-strength spiral stirrup confined concrete circu-lar columns under eccentric load ,based on domestic and oversea studies on confined concrete ,the stress-strain curves and failure patterns were analyzed .Then the influence of stirrup forms and transverse reinforcement characteristic values on the strength and ductility of double-layered high-strength spiral stirrup confined concrete circular columns were dis-cussed based on the analysis .The results indicate that the simulation results are in good agreement with the test results . The effective constraints have significant effect on improving the ultimate bearing capacity and ductility of reinforced con-crete columns and the results indicate that the values are within the safety range .
