华北水利水电大学学报（自然科学版）
華北水利水電大學學報（自然科學版）
화북수이수전대학학보（자연과학판）
Journal of North China University of Water Resources and Electric Power
2015年
5期
39-43
,共5页
李凤兰%任访春%苏延峰%杨亚彬
李鳳蘭%任訪春%囌延峰%楊亞彬
리봉란%임방춘%소연봉%양아빈
机制砂再生粗骨料混凝土%配筋柱%小偏心受压%大偏心受压%长细比%初始偏心距%承载力
機製砂再生粗骨料混凝土%配觔柱%小偏心受壓%大偏心受壓%長細比%初始偏心距%承載力
궤제사재생조골료혼응토%배근주%소편심수압%대편심수압%장세비%초시편심거%승재력
concrete mixed with manufactured sand and recycled coarse aggregate ( MSRCAC )%reinforced column%small-eccentric compression%large-eccentric compression%slenderness ratio%initial eccentric distance%ultimate resistance
介绍了机制砂再生粗骨料混凝土配筋柱的小偏心和大偏心受压承载力试验成果,分析了长细比和初始偏心距分别对配筋柱正截面应变分布、混凝土和钢筋应变、侧向挠度、破坏形态、极限承载力等的影响规律.通过与现行规范相应计算公式的计算结果对比,基于混凝土材料性能与结构受力的相关机理,系统分析了机制砂再生粗骨料混凝土配筋柱偏心受压承载力的主控因素,并对偏心受压承载力的计算提出了建议.
介紹瞭機製砂再生粗骨料混凝土配觔柱的小偏心和大偏心受壓承載力試驗成果,分析瞭長細比和初始偏心距分彆對配觔柱正截麵應變分佈、混凝土和鋼觔應變、側嚮撓度、破壞形態、極限承載力等的影響規律.通過與現行規範相應計算公式的計算結果對比,基于混凝土材料性能與結構受力的相關機理,繫統分析瞭機製砂再生粗骨料混凝土配觔柱偏心受壓承載力的主控因素,併對偏心受壓承載力的計算提齣瞭建議.
개소료궤제사재생조골료혼응토배근주적소편심화대편심수압승재력시험성과,분석료장세비화초시편심거분별대배근주정절면응변분포、혼응토화강근응변、측향뇨도、파배형태、겁한승재력등적영향규률.통과여현행규범상응계산공식적계산결과대비,기우혼응토재료성능여결구수력적상관궤리,계통분석료궤제사재생조골료혼응토배근주편심수압승재력적주공인소,병대편심수압승재력적계산제출료건의.
The experimental results of ultimate resistance of the reinforced MSRCAC ( concrete mixed with manufactured sand and recy-cled coarse aggregate) columns under small and large eccentric compression are introduced, and the effects of the slenderness ratio and the initial eccentric distance on the cross-sectional strain distribution, concrete and reinforcement strains, transversal deflection, failure states and ultimate resistance of reinforced MSRCAC columns are studied. By the comparative analyses with the calculation results and formulas in current design code, and based on the related mechanism between the material properties of concrete and the loading behav-iors of structure, the main control factors influencing the ultimate resistance of reinforced MSRCAC columns under eccentric compres-sion are discussed. At last, the calculation suggestions for eccentric-compressive ultimate resistance of reinforced MSRCAC columns are proposed.
