从岩土类材料极限应力状态线所致的各向异性出发，提出了应力空间变换的思想。
Based on the anisotropy induced by the critical stress line, the idea of transformation of stress space is presented.
在VII级烈度地震作用过程中输电塔各构件未达到极限应力状态，塔具有较好的抗震性。
Maximum stress of tower is lower than ultimate stress which reveals that the tower has a good resistance in VII magnitude intensity earthquake.
从土体极限应力状态线所致的各向异性出发，结合原状土的力学特性，给出了原状土的应力空间、应力增量变换公式。
Based on the anisotropy induced by the critical state line, the idea of transformation of stress space is presented.
在深井软岩条件下，巷道围岩应力状态处于岩石强度极限邻域内，围岩会产生较大的蠕变变形。
Soft rock wall of tunnels in deep mining will have large creep deformation when the stress in rock is near its ultimate strength.
采用传统的极限平衡方法来分析边坡的稳定，没有考虑土体本身的应力—应变关系，其工作状态是虚拟的。
Analyzing the stability of the side slope through classical ultimate balance method, the working state is fictitious without considering the stress-strain relation of the soil mass.
根据算例表明当考虑三向应力状态时条形地基的极限承载力将提高，这对实际工程具有重要理论和现实意义。
According to the numerical results, the ultimate bearing capacity of foundation with consideration of three-dimensional stress is improved, which is of important significance for engineering.
对由线应力性强化材料制造的薄壁钢箱梁在弯曲极限状态下的强度及有效宽比进行了分析。
In this paper, for the thin walled linear strengthened steel box beam, the strength and valid width ratio of flange is investigated under the condition of elastoplastic limit state.
试验结果表明，部分预应力陶粒砼叠合连续板跨中取用较低的预应力度，不仅能满足正常使用极限状态的要求，而且具有较好的延性。
The test results show that the continuous composite slab with lower level of prestressing can meet the requirement of ultimate state under normal serviceability and has better ductility.
本文采用非线性有限元方法，对极限工况下该区域的应力状态作了分析计算。
The non-linear finite element method was used in this paper to analyze the stress distribution in the area.
分析预应力钢筋混凝土正截面承载能力极限状态计算公式。
That have analyzed prestressed reinforced concrete normal section calculate formula of bearing capacity limit states.
最后对三种结构型式的拱顶储罐的变形方式、应力状态、塑性变形历史、塑性极限压力、弹性失稳临界压力进行了分析与对比。
The analysis and contrast of deformation pattern, state of stress, plastic deformation history, plastic limit load and limit load of elastic buckling are analyzed and contrasted.
研究了体外预应力钢-混凝土组合梁在正常使用极限状态下的受弯性能。
It is researched that the bending behaviors of external prestressed composite steel-concrete beams in service ability limit state.
根据两类极限状态的基本要求，建立了预应力混凝土梁截面设计的控制方程，提出了直接设计方法。
Based on the demands of two limit states, the design control equations of cross section for prestressed concrete beam are derived and the direct design method is presented.
但众所周知，在塑性阶段的极限承载力状态下应力叠加原理是不成立的。
But it is well known that the principle of superimposed stresses is not correct under ultimate limit states of plastic stage.
由于结构性、初始各向异性和复杂的应力路径的共同影响，往往使极限状态设计如何确定天然土体渐进破损的强度及参数变得复杂而困难。
The mutual effects of the structure, initial anisotropy and complex stress path make it complicated and difficult to determine the progressive destructive strength and parameters of natural soils.
对外贴FRP加固预应力混凝土桥梁正常使用极限状态的抗裂和变形性能进行初步研究。
This paper conducts a preliminary study of crack resistance and deformation behavior of prestressed concrete girders strengthened with externally bonded FRP in serviceability limit state.
深井软岩的应力状态接近于岩石强度极限状态，对外部扰动载荷十分敏感，为了研究这种高应力状态下岩石表现出的力学特性，提出了岩石流变扰动效应这一研究课题。
Stress of soft rock in deep mining is close to strength limit state, rock is sensitive to outer disturbed loading, research project was put forward in order to study rock rheology disturbed effects.
本文提出了部分预应力砼构件基于两类极限状态直接控制的设计方法，并给出了具体的设计公式和设计步骤。
The authors put forward a design method of Partially Prestressed Concrete members, Which is based on the direct Controlling of two Kind of limit state and also the design formula and design steps.
研究了体外预应力钢-混凝土组合梁在承载能力极限状态下的抗弯承载能力，提出了相应的计算公式。
It is researched that the ultimate flexural capacity of external prestressed composite steel-concrete beams in ultimate limit state of carrying capacity, and the relevant formula are derived.
以钢结构设计原理中的极限状态设计法或容许应力法为基础，阐述了预应力加固钢结构的分阶段加固设计计算原理和方法。
Based on limit-state design method in steel structure design principle, the principle and method of phased strengthening design of steel structures strengthened by prestressing is represented here.
研究三向应力状态下条形地基极限承载力问题具有重要的理论和实际意义。
It is of important significance to study the ultimate bearing capacity of foundation in three-dimensional stress.
分析在正常使用极限状态下截面内力分别为最大负弯矩和最大正剪力两种工况下应力分布规律。
Then take three-dimensional simulation for the model, and analyze the stress distribution when conditions maximum positive shear or maximum nagetive moment happens.
文中还提出了应对碳纤维布锚固长度、剥离应力、极限状态下碳纤维布的应变、强剪弱弯等进行验算的建议。
It is advised that the anchorage length of CFS, peeling stress, the strain of CFS under the ultimate load and the shear capacity should also be verified to insure enough ductility of the member.
本文基于挠度的思想建立了体外预应力RC梁在极限状态下承载力的计算方法。
This paper presents a method to calculate the ultimate bearing capacity of externally prestressed RC beams based on deflection.
本文通过对预应力混凝土屋架的荷载-挠度曲线分析，说明预应力混凝土屋架在强度极限状态时，屋架的挠度是不小的。因此，由屋架的变位引起的上弦次弯矩影响是不可忽略的。
Through the analysis of the load-deflection curves of prestressed concrete roof trusses, it is shown that these trusses deflect a considerable amount in the state of ultimate strength.
获得了不同应力状态下的岩石强度极限值和岩石的三向全应力应变曲线。
The rock strength limit value under different stress states and the strain curve of 3-dimensional full stress are obtained.
岩土体应力状态靠近极限状态线时，岩土体塑性剪切变形越来越大，趋于破坏；
The plastic deviatoric deformation becomes larger and larger and geomaterials tend towards to damage, when the stress state of geomaterials is close to the critical state line.
岩土体应力状态靠近极限状态线时，岩土体塑性剪切变形越来越大，趋于破坏；
The plastic deviatoric deformation becomes larger and larger and geomaterials tend towards to damage, when the stress state of geomaterials is close to the critical state line.
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