1) straight-section hypothesis of strain
应变平截面假定
2) plane section assumption
平截面变形假定
1.
The computation of stress resulted by external load is relatively complex because the deformation of unbonded prestressed strand cannot comply with the plane section assumption.
无粘结筋的变形不符合平截面变形假定,因此由外荷载引起的应力计算比较复杂。
3) plane-section assumption
平截面假定
1.
Applicable range of plane-section assumption in analysis of L-shaped RC columns;
钢筋混凝土L形柱分析时平截面假定的适用范围
2.
According to the plane-section assumption,the shear strength provided by compression stresses in the concrete of concrete girders at ultimate stage can be calculated.
基于平截面假定,可以计算得到混凝土梁抗剪承载力中混凝土承担的剪力部分。
3.
The plane-section assumption and the grouting effect of AFRP tendons were investigated.
进行了7根配置芳纶纤维(AFRP)筋或钢绞线的有粘结简支梁受弯承载能力试验,分析了构件的开裂荷载与极限承载能力,考察了平截面假定及AFRP筋灌浆效果。
4) Assumption of Plane Section
平截面假定
1.
Analysis on Assumption of Plane Section of the Tshaped Short-piered Shear Wall;
T型短肢剪力墙平截面假定的分析
2.
Following the process of construction,considering the worst loads,according to the assumption of plane section,the steel girder alone and the composite girder are computed respectively.
按照实际施工过程,考虑最不利计算荷载,根据平截面假定,分别对钢梁单独受力和钢-混凝土组合梁两种工况进行计算。
3.
The assumption of plane section of reinforced concrete wide flange T-special shaped section columns has been validated by analysis of strain of sections.
按不同肢厚比设计了3组计算模型,应用ADINA有限元软件分析宽肢T形截面柱在单调荷载作用下的非线性特性,分析了轴压比、水平力作用方向对其承载能力的影响,并通过对柱底部钢筋与混凝土单元的应力、应变随荷载增加而变化的情况的分析,验证了宽肢异形柱对平截面假定的适用性。
5) plane cross-section assumption
平截面假定
1.
Based on axial and eccentric compressive tests of six experimental model walls that may be used in the middle-high reinforced masonry building,the compressive behavior and capacity of the reinforced masonry are obtained,the plane cross-section assumption is verified,and the load-bearing capacity formula of the reinforced masonry is brought forward.
本文针对中高层配筋砌体房屋可能需要的材料性能情况,进行了6片混凝土小砌块配筋砌体墙片的受压性能试验,研究了该类配筋砌体墙片在轴心、小偏心荷载作用下的破坏特征,对平截面假定从现象上作了一定的分析验证,进行了配筋砌体的受压承载力计算并与实验结果进行了对比分析。
2.
It was found that load-middle span deflection curve could be defined as following stages: elastic stage,elasto-plastic stage and hardening stage;the circumferential strain does not distribute uniformly; longitudinal strain distribution obeys the plane cross-section assumption from 0 load till about 70 percent the ultimate load of bearing capacity.
7Pu基本符合平截面假定;同一点的环向应变与纵向应变符号相反。
补充资料：平截面假设
材料力学中的一个变形假设，其内容是：垂直于杆件轴线的各平截面（即杆的横截面）在杆件受拉伸、压缩或纯弯曲而变形后仍然为平面，并且同变形后的杆件轴线垂直。根据这一假设，若杆件受拉伸或压缩，则各横截面只作平行移动，而且每个横截面的移动可由一个移动量确定；若杆件受纯弯曲,则各横截面只作转动,而且每个横截面的转动可由两个转角确定。利用杆件微段的平衡条件和应力-应变(见应力和应变)关系,即可求出上述移动量和转角，进而可求出杆内的应变和应力。如果杆上不仅有力矩，而且还有剪力，则横截面在变形后不再为平面。但对于细长杆，剪力引起的变形远小于弯曲变形，平截面假设近似可用。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条