织物增强混凝土薄板受力性能试验初步研究.pdfVIP

2007年第 12期(总第 218期 ) 混 凝 土 理 论 研 究 Number 12in2007(TotalNo．2l8) Concrete THEoRETICAL RESEARCH 织物增强混凝土薄板受力性能试验初步研究 潘永灿1,2，荀 勇1,2 (1．盐城工学院土木工程学院，江苏盐城 224003；2．东南大学 土木工程学院，江苏 南京 210096) 摘 要： 研究了织物增强混凝土薄板的受力性能。首先与企业合作研究了对织物施加预应力的设备，测试了织物的力学性能，同时配制 了与织物性能相适应的高性能混凝土，然后对织物增强混凝土薄板抗折性能、抗弯性能和粘结性能进行测试。试验表明，用织物增强混凝 土薄板，具有较高的抗折和抗弯承载力，同时具有良好的变形性能；对织物施加预应力后，薄板的开裂荷载提高，裂缝宽度减小。对纤维织 物浸胶后，会明显改善纤维织物与混凝土之间的界面粘结性能。并根据试验结果，分析了纤维织物与混凝土的粘结锚固机理。 关键词：织物；混凝土；抗折性能；抗弯性能；界面粘结 中图分类号：TU528．572 文献标志码： A 文章编号： 1002—3550(2007)12-0027—05 Experimental research on resistance flexure performance in textile reinforced concrete sheet PANYong-can ，XUN y0n 。 (1．DepartmentofConstructionEngineeringofYanchengInstitute ofTechnology，Yancheng224003，China 2．Civil Engineering Institute ofSoutheast University，Nanjing 210096，China) Abstract： The resistance flexure performance research on concrete sheet is carried out．First，we research the equipments in adding prestressed to textile cooperated m enterprise，test the mechanics performance ofthe textile，prepare the high performance concrete to adapt textile，then test the flexure performance in textile reinforced concrete sheet．The results of the experiments indicate that the textile reinforced concrete sheet has high resistance flexure performance and better deform~ion performance；The prestressed concrete sheet has higher crack load and smaller crack width．Impregnated the fiber textile will improve bond behavior．Based on the experiment results，the theory ofbond behavior between fiber textile and concreteiSanalized． Keywords：textile；concrete；three-point resistanceflexureperformance；four-point resistanceflexureperformance；bondbehavior