1.1 UHPC-NSC界面基本力学性能 UHPC-NSC界面具有典型的二维受力特征,界面间受力主要可分为法向及切向的拉、剪应力[4]。UHPC加固NSC主要依靠界面传递剪力来实现两种材料的协同受力,形成组合作用。因此,抗剪性能是衡量UHPC-NSC界面力学性能最重要的一项力学指标。同时,在复杂受力状态下UHPC-NSC界面不可避免会承受沿法...
(2)通过直接剪切,斜剪试验研究了NSC-UHPC界面抗剪性能.在直剪试验中,粗糙度为Ⅲ型的NSC-UHPC界面抗剪强度最高.而在斜剪试验中,UHPC-UHPC界面表现出更好的抗剪性能,其相比于NSC-UHPC界面(Ⅲ型)提高了39%.从界面破坏形式上推断为界面钢纤维的存在增大了界面摩擦和粘结强度.对比界面抗剪强度增幅的大小,斜剪...
In NSC, increasing the bond length increases the maximum bond stress, while in UHPC, for increasing bond length, the maximum bond stress decreases. New relationships have been proposed to predict bond-slip behaviour. 展开 关键词: Ultra-high performance concrete (UHPC) High-strength rebar Bond ...
状态:BD英语 类型:选秀 主演:Edwin,Schalaudek,Heaven 导演:Pons 年代:1976 集数时长:46分钟 语言字幕:英语 国家地区:泰国 更新时间:2025-02-05 05:25 影视评论:当前有0条评论, 简介:休息一会儿由于两人都浑身湿透不得以欧阳天指着不远处那栋建筑对张晓晓道:马上天黑了我们到那里现将衣服弄干吧张宇成走到殿堂...
abaqus第111课UHPC-NSC钢筋混凝土用胶粘一起后的三点弯模拟教学CAE老司机 1.9万粉丝 关注 836观看 --弹幕 2021-02-22 BV1bv411Y73wabaqus第111课UHPC-NSC钢筋混凝土用胶粘一起后的三点弯模拟教学 CAE老司机 836观看 11 18 相关推荐 评论2 1.4万 4 14:54 【Abaqus】第三十七讲:样件三点弯曲仿真模拟 8820...
Since the static behavior of studs with UHPC cover embedded in UHPC-NSC composite slab is different from in the NSC or UHPC slab, an experimental study is needed to investigate the ultimate strength of studs, as well as the relative slip and failure patterns. The mainly parameters considered ...
普通混凝土(NSC)铰缝弯剪试验超高性能混凝土(UHPC)具有优异力学性能以及与预制混凝土粘接强度高,将其作为装配式空心板梁桥铰缝材料,可以避免铰缝病害的发生.先对空心板梁桥进行整体受力分析,根据分析计算得到的最大弯剪比,设计3组共6根铰缝梁模型进行弯剪试验常规型NSC铰缝梁(N-N),常规型UHPC铰缝梁(N-U)和加强型...
According to the test results, the higher the strength or wettability of NSC substrate, the greater the shear capacity of the interface. The shear capacity of UHPC-NSC interface increased rapidly when the age of UHPC increased from 3days to 7days, and at the age of 7days, the shear ...
Two load-slip development patterns, and two types of main crack location are identified for the HESUHPC-NSC composites tested in different ages and seasons. In addition, shear capacity of the HESUHPC-NSC composite develops rapidly at the early age, and the increasing amplitude decreases as the ...