This paper studies the seismic performance of FRP-strengthened RC interior non-seismically detailed beam-wide columns and beam-wall joints after limited seismic damage.Four eccentric and concentric beam-wide column jo...This paper studies the seismic performance of FRP-strengthened RC interior non-seismically detailed beam-wide columns and beam-wall joints after limited seismic damage.Four eccentric and concentric beam-wide column joints and two beam-wall joints,initially damaged in a previous study,were repaired and tested under constant axial loads(0.1fc′Ag and 0.35fc′Ag) and lateral cyclic loading.The rapid repair technique developed,aimed to restore the original strength and to provide minimum drift capacity.The repair schemes were characterized by the use of:(a) epoxy injections and polymer modified cementitious mortar to seal the cracks and replace spalled concrete;and(b) glass(GFRP) and carbon(CFRP) sheets to enhance the joint performance.The FRP sheets were effectively prevented against possible debonding through the use of fiber anchors.Comparison between responses of specimens before and after repair clearly indicated reasonable restoration in strength,drift capacity,stiffness and cumulative energy dissipation capacity.All specimens failed with delamination of FRP sheets at beam-column joint interfaces.The rapid repair technique developed in this study is recommended for mass upgrading or repair of earthquake damaged beam-column joints.展开更多
目的 分析老年子宫脱垂患者术后新发压力性尿失禁(de novo SUI)情况及其影响因素。方法 回顾性分析泗县人民医院2020年10月~2023年5月期间因子宫脱垂行手术治疗的60例患者,调查患者术后de novo SUI发生情况,将患者分为无de novo SUI组及...目的 分析老年子宫脱垂患者术后新发压力性尿失禁(de novo SUI)情况及其影响因素。方法 回顾性分析泗县人民医院2020年10月~2023年5月期间因子宫脱垂行手术治疗的60例患者,调查患者术后de novo SUI发生情况,将患者分为无de novo SUI组及de novo SUI组,通过单因素及多因素logistic回归分析影响患者术后de novo SUI发生的相关因素。结果 60例行手术治疗的子宫脱垂患者,18例患者术后发生de novo SUI,发病率为30.00%。单因素分析结果显示,体质量指数(BMI)、高血压史、巨大儿分娩史、糖尿病史、便秘史、盆腔手术史、雌激素治疗史是影响老年子宫脱垂患者术后de novo SUI的相关因素(χ^(2)=5.701、4.775、6.782、4.113、3.951、5.644、9.966,P<0.05)。多因素logistic分析结果显示,高血压史、巨大儿分娩史、糖尿病史、便秘史、盆腔手术史为老年子宫脱垂患者术后de novo SUI的独立危险因素(P<0.05)。结论 老年子宫脱垂患者术后存在一定的de novo SUI发生风险,高血压史、巨大儿分娩史、糖尿病史、便秘史、盆腔手术史为老年子宫脱垂患者术后de novo SUI的独立危险因素。展开更多
文摘This paper studies the seismic performance of FRP-strengthened RC interior non-seismically detailed beam-wide columns and beam-wall joints after limited seismic damage.Four eccentric and concentric beam-wide column joints and two beam-wall joints,initially damaged in a previous study,were repaired and tested under constant axial loads(0.1fc′Ag and 0.35fc′Ag) and lateral cyclic loading.The rapid repair technique developed,aimed to restore the original strength and to provide minimum drift capacity.The repair schemes were characterized by the use of:(a) epoxy injections and polymer modified cementitious mortar to seal the cracks and replace spalled concrete;and(b) glass(GFRP) and carbon(CFRP) sheets to enhance the joint performance.The FRP sheets were effectively prevented against possible debonding through the use of fiber anchors.Comparison between responses of specimens before and after repair clearly indicated reasonable restoration in strength,drift capacity,stiffness and cumulative energy dissipation capacity.All specimens failed with delamination of FRP sheets at beam-column joint interfaces.The rapid repair technique developed in this study is recommended for mass upgrading or repair of earthquake damaged beam-column joints.
文摘目的 分析老年子宫脱垂患者术后新发压力性尿失禁(de novo SUI)情况及其影响因素。方法 回顾性分析泗县人民医院2020年10月~2023年5月期间因子宫脱垂行手术治疗的60例患者,调查患者术后de novo SUI发生情况,将患者分为无de novo SUI组及de novo SUI组,通过单因素及多因素logistic回归分析影响患者术后de novo SUI发生的相关因素。结果 60例行手术治疗的子宫脱垂患者,18例患者术后发生de novo SUI,发病率为30.00%。单因素分析结果显示,体质量指数(BMI)、高血压史、巨大儿分娩史、糖尿病史、便秘史、盆腔手术史、雌激素治疗史是影响老年子宫脱垂患者术后de novo SUI的相关因素(χ^(2)=5.701、4.775、6.782、4.113、3.951、5.644、9.966,P<0.05)。多因素logistic分析结果显示,高血压史、巨大儿分娩史、糖尿病史、便秘史、盆腔手术史为老年子宫脱垂患者术后de novo SUI的独立危险因素(P<0.05)。结论 老年子宫脱垂患者术后存在一定的de novo SUI发生风险,高血压史、巨大儿分娩史、糖尿病史、便秘史、盆腔手术史为老年子宫脱垂患者术后de novo SUI的独立危险因素。
