东南大学学报(自然科学版)
東南大學學報(自然科學版)
동남대학학보(자연과학판)
JOURNAL OF SOUTHEAST UNIVERSITY
2015年
3期
550-556
,共7页
董宏英%张力嘉%曹万林%乔崎云%刘恒超
董宏英%張力嘉%曹萬林%喬崎雲%劉恆超
동굉영%장력가%조만림%교기운%류항초
密柱%钢板深梁%低周反复荷载试验%抗震性能%承载力计算
密柱%鋼闆深樑%低週反複荷載試驗%抗震性能%承載力計算
밀주%강판심량%저주반복하재시험%항진성능%승재력계산
dense columns-deep steel plate beams%low-cycle loading experiment%seismic behavior%load-bearing capacity calculation
提出了一种内藏密柱钢板深梁混凝土组合剪力墙,密柱钢板深梁为其核心钢构.为研发高性能密柱钢板深梁结构,对4个具有不同设计参数的试件进行了低周反复荷载试验.试件的密柱分为方钢管混凝土、圆钢管混凝土、工字钢3种截面,钢板深梁分为Q235,Q345两种钢材,试件剪跨比为1.5.基于试验,分析了各试件的承载力、刚度及退化过程、延性、滞回特性、耗能、损伤与破坏过程,提出了密柱钢板深梁结构承载力计算模型,计算结果与实测结果符合较好.研究结果表明:“强密柱、弱钢板深梁”型结构可实现延性屈服机制;密柱截面用钢量相同时,采用圆钢管混凝土密柱的结构性能最好;与采用Q345钢板深梁的结构相比,采用Q235钢板深梁的结构虽承载力略小但延性更好;密柱钢板深梁结构具有良好的抗震性能和延性屈服机制.
提齣瞭一種內藏密柱鋼闆深樑混凝土組閤剪力牆,密柱鋼闆深樑為其覈心鋼構.為研髮高性能密柱鋼闆深樑結構,對4箇具有不同設計參數的試件進行瞭低週反複荷載試驗.試件的密柱分為方鋼管混凝土、圓鋼管混凝土、工字鋼3種截麵,鋼闆深樑分為Q235,Q345兩種鋼材,試件剪跨比為1.5.基于試驗,分析瞭各試件的承載力、剛度及退化過程、延性、滯迴特性、耗能、損傷與破壞過程,提齣瞭密柱鋼闆深樑結構承載力計算模型,計算結果與實測結果符閤較好.研究結果錶明:“彊密柱、弱鋼闆深樑”型結構可實現延性屈服機製;密柱截麵用鋼量相同時,採用圓鋼管混凝土密柱的結構性能最好;與採用Q345鋼闆深樑的結構相比,採用Q235鋼闆深樑的結構雖承載力略小但延性更好;密柱鋼闆深樑結構具有良好的抗震性能和延性屈服機製.
제출료일충내장밀주강판심량혼응토조합전력장,밀주강판심량위기핵심강구.위연발고성능밀주강판심량결구,대4개구유불동설계삼수적시건진행료저주반복하재시험.시건적밀주분위방강관혼응토、원강관혼응토、공자강3충절면,강판심량분위Q235,Q345량충강재,시건전과비위1.5.기우시험,분석료각시건적승재력、강도급퇴화과정、연성、체회특성、모능、손상여파배과정,제출료밀주강판심량결구승재력계산모형,계산결과여실측결과부합교호.연구결과표명:“강밀주、약강판심량”형결구가실현연성굴복궤제;밀주절면용강량상동시,채용원강관혼응토밀주적결구성능최호;여채용Q345강판심량적결구상비,채용Q235강판심량적결구수승재력략소단연성경호;밀주강판심량결구구유량호적항진성능화연성굴복궤제.
The composite concrete shear wall embedded with dense columns-deep steel plate beams as the core structure was proposed.In order to investigate a high-performance structure with dense columns-deep steel plate beams, low cyclic loading experiments were carried out on four specimens with different design parameters.Three section styles, including concrete filled square steel tube col-umn, concrete filled circular steel tube column, and I-section steel column, were adopted for dense columns.The steel strengths of deep beams included two grades, Q235 and Q345.The shear span ratios of all the specimens were 1.5.Based on the experiments, the load-bearing capacities, stiffness and deterioration processes, ductilities, hysteretic behaviors, energy dissipations, damage and failure processes of specimens were analyzed.The load-bearing capacity calculation model was established, and the calculation results were in good agreement with the test results.The investigation results show that the structure with“strong columns and weak deep steel plate beams” can achieve the duc-tile yield mechanism.Among three types of dense columns with the same steel consumption, the structure with circular steel tube columns has the best seismic performance.Compared with the struc-ture of Q345, the structure with steel deep beams of Q235 has better ductility in spite of lower load-bearing capacity.The structure with dense columns-deep steel plate beams has good seismic perform-ance and shows good ductile yield mechanism.