The load-deflection curve at the middle of SFRPCS was obtained,which shows that the development of deflection can be divided into three-stage,and the bending toughness of slab with steel fiber is increased a lot.
通过设计制作加载装置和位移传感器对三种不同钢纤维掺量(0、1%、2%)的预应力钢纤维混凝土板进行了弯曲试验研究,得到了弯曲过程中预应力钢纤维混凝土板跨中的荷载-挠度曲线,揭示了预应力钢纤维混凝土板的跨中挠度在弯曲加载过程中呈现三阶段变化,并且钢纤维的加入有助于提高板的弯曲韧性,通过等效截面法计算得出了不同钢纤维掺量板的抗弯强度。
The flexual behaviour of UHPC was researched and the flexual load-displacement curves were recorded.
通过大掺量超细工业废渣制备了2个不同配比的超高性能混凝土,分别研究了其棱柱体三点弯曲行为和薄板四点弯曲行为,绘制了弯曲荷载-挠度曲线,讨论了钢纤维、有机纤维和纤维混杂对其弯曲行为的影响。
The finite element software was adopted in this thesis,and the process from loading to failure of four sides waffle slab floor with unbounded prestressed tendons and nonprestressed steel under the condition of distributed load was simulated,and the ultimate load,load-deflection curves and the distribution of crack could be obtained.
采用有限元软件ANSYS,模拟了均布荷载作用下,周边简支混合配筋预应力混凝土密肋楼盖从开始加载到破坏的全过程,得到了极限荷载,荷载-挠度曲线和裂缝分布情况。