摘要
基于四点弯曲试验,研究了S-P混杂纤维局部增强对C50高强混凝土梁的挠度、极限承载力和开裂荷载的影响,并与普通钢筋混凝土梁、S-P混杂纤维整体增强钢筋混凝土梁弯曲性能进行对比。研究表明:钢筋混凝土梁中掺入S-P混杂纤维能显著提高钢筋混凝土梁的弯曲性能,且能使S-P混杂纤维局部增强钢筋混凝土梁具有与S-P混杂纤维整体增强钢筋混凝土梁相当的弯曲性能,而S-P混杂纤维局部增强钢筋混凝土梁使用纤维较少,更能节约原材料。
Based on four-point bending test,it researched the influence of the S-P hybrid fiber local enhancement on the deflection,ulti-mate bearing capacity and cracking load of C50 high strength concrete beam,and compared with ordinary reinforced concrete beam and the bending performance of S-P hybrid fiber whole enhancement reinforced concrete beam.Researches show that adding S-P hybrid fibers to reinforced concrete beam can significantly increase the flexural performance of it and make the S-P hybrid fiber local enhancement rein-forced concrete beam have the same bending performance of the S-P hybrid fiber whole enhancement reinforced concrete beam,further-more,the content of fiber in the S-P hybrid fiber local enhancement reinforced concrete beam is low,which can save more raw material.
出处
《混凝土》
CAS
北大核心
2016年第7期24-26,29,共4页
Concrete
基金
国家自然科学基金(51478183)
江西省高等学校科技落地计划项目(KJLD13039)
江西省青年科学家培养对象计划(20142BCB23012)
