1) confining stress
紧箍应力
1.
Influence of creep on confining stress of axially compressed concrete filled steel tubular short columns;
徐变对钢管混凝土轴心受压短柱紧箍应力影响分析
2) confinement effect
紧箍效应
1.
Through experimental investigation of confinement effect of core lightweight aggregate concrete(LWAC) confined by steel tube,the stress-strain relations of the core LWAC under axial compression and failure modes of the specimens thereof are obtained,and the confinement effect and strength criterion of the LWAC are then analytically studied in details.
通过钢管约束下核心轻集料混凝土的紧箍效应试验,得到核心混凝土在轴压作用下应力~变形关系曲线及试件破坏形态,重点对轻集料混凝土的紧箍效应及强度准则进行分析研究。
3) confining force
紧箍力
1.
Influence of the steel rate to the confining force of self stress light weight aggregate concrete filled steel tubes;
含钢率对自应力钢管轻骨料混凝土紧箍力的影响
2.
In this paper,concrete filled steel tube short column with dumbbellshaped cross section is studied by finite element method,further analysis on the influence of concrete grade and steel ratio on confining force,and stress distribution and other properties of the core concrete in web cavity of the column under load is carried out.
采用有限元法对哑铃型截面钢管混凝土短柱进行分析,研究了不同混凝土标号和含钢率对其紧箍力的影响以及腹腔部分钢管和混凝土的应力分布等受力特性。
4) tightening-ring force
紧箍力
1.
The article analyzes the interaction between the steel tube and the concrete core of the Concrete-Filled Tubular Steel(CFTS) column when loaded from the axis,and worked out the formulas of tightening-ring force between the two sides,and the formulas of the load applied to the column core and the radial displacement of the steel tube.
考虑钢管混凝土柱在轴向荷载作用下,研究钢管与混凝土柱芯间的相互作用,导出了两者之间的紧箍力以及柱芯受荷与钢管径向位移的计算公式并进行了实例计算,结果表明:紧箍力与材料的弹性常量有关,与所受荷载成正比;钢管的径向位移与荷载成正比;钢管混凝土柱的截面越小,紧箍力所起的作用越大,钢管径向位移也越大。
2.
Constitutive relationship formulas of tightening-ring force and parameters of materials thermodynamics capability are deduced.
0,研究了大直径钢管混凝土柱由混凝土水化热引起的温变产生的初始应力对结构的影响,并推导了紧箍力与材料热力学性能参数本构关系公式。
5) wrapping hoop force
箍紧力
6) equivalent confining force
等效紧箍力
1.
This paper gives the concept of equivalent confining force for concrete-filled steel tubular columns under compression and bending, and how to predigest steel and core concrete to ideal elasto-plastic member.
提出了钢管混凝土偏压柱考虑等效紧箍力的作用,把钢材和核心混凝土均简化成理想弹性塑性体,按截面形成塑性铰确定强度承载力,同时采用压溃理论确定构件的稳定承载力。
补充资料:胎紧浸入和套紧浸入
胎紧浸入和套紧浸入
tight and taut immersions
矍数) 图3 犷鳖{ 图4 称空间A CB的嵌人在Z:同调中为单射的(in-Jeetive),如果对于i)0,诱导同态万.(注,22)~H.(B,22)是单的.令HC=R“是R“中带有超平面边界aH的半空间.例如, H=H:(t)={x“R“:z’(x)簇r}.如果f是一个胎紧浸人,h:是一个非退化的高度函数,那么由Morse理论得到f一’(万:(r))C=M在22同调中是单的.于是由连续性,对任一半空间H这种单性都成立.对于闭流形的光滑浸人,这种半空间性质等价于胎紧性.然而,这种半空间定义也能应用于更大范围的从流形和其他紧拓扑空间到RN中的连续浸人或甚至是映射中去.一个例子是胎紧的“瑞士干酪”,它是一个带边的嵌人曲面,见图5.一个到R中的胎紧映射也称为一个完满函数(详rfect丘inction).公 图5今 图6 对于曲线和闭曲面,半空间性质可导出对任一半空间H,f一’(H)是连通的.它等价于R功ehoff两片性质(R朔chofft场。一pieee pro详rty),即R“中的任一超平面日H将M至多分割成两个连通的片,见图3和图4中的胎紧曲面和图2中的非胎紧曲线. 半空间定义将胎紧性置于经典几何学和凸性理论之中.由于胎紧性在RN中的任意将凸包才(f(M))映到RN内的射影变换下是不变的,因此胎紧性是一个射影性质(见射影几何学(projeetive罗。
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