高等混凝土結構理論要點

1、高等混凝土結構理論要點Stress-strain curves of concrete under monotonic, repeated and cyclic uniaxial loadings.單軸受力時混凝土在單調(diào)、重復、反復加載時的應力應變曲線。Creep of concrete (linear and nonlinear)混凝土的徐變(線性、非線性徐變)Components of deformation of concrete 混凝土變形的多元組成Process of failure of concrete under uniaxial compression 混凝土在單向受 壓時破

2、壞的過程。Strength indices of concrete and the relations among them混凝土的強度指 標及其之間關系Features of stress-strain envelope curve of concrete under repeated compressive loading.混凝土單向受壓重復加載時的應力應變關系的包絡線的 特征。The crack contact effect of concrete and its representation in stress-strain diagram.混凝土的裂面效應及其在應力應變關系圖上的表示

3、。The multi-level two-phase system of concrete.混凝土的多層次二相體系。The rheological model of concrete.混凝土的流變學模型。Influence of stress gradient on strength of concrete. 應力梯度 對混凝土強度的影響。Tensile test of concrete and result.混凝土軸心受拉試驗及結果。Size effect of concrete.混凝土的尺寸效應。Non-objectivity of desending branch of stress-s

4、train curve of concrete subject to tension (gauge length dependency). 混凝土受拉時應力應 變曲線下降段應變觀測的非客觀性(標距依賴性)。Failure modes of concrete under multiaxial loading.混凝土在多 軸受力時的破壞形式。15Strength theories of concrete and their forms of representation.混凝土強度理論及其表述方式。16Properties of failure surface of concrete.混凝土破壞曲

5、面的特性。Types of 3D stress-strain relations of concrete.混凝土三維應力 應變關系的各種類型。Stress-strain relations of rebars under different types of loading. 在不同加載條件下鋼筋的應力應變關系。The bauschinger effect of rebars.鋼筋的包興格效應。The valley of shear failure of concrete beam (Kanis 混lley). 凝土梁的剪切破壞谷(卡尼谷)。Truss model of shear resis

6、tance and its failure modes.抗剪桁架 模型及其破壞模式。Shear failure zone.剪切強度控制區(qū)。Features of shear resistance of T-beams. T 形梁的抗剪特點.Shear resistance of beams with variable depth.變高度梁的抗剪。Beam action and arch action of shear resistance.抗剪的梁作用 和拱作用。Calculation of stress in diagonal struts of truss model for shear.

7、 抗剪桁架模型混凝土斜壓桿的應力計算。Solution of the statically indeterminate truss in the plastic truss theory.塑性桁架理論中超靜定桁架的求解。Why should the angle of inclination of diagonal cracks duo to shear be limited?為什么要限制剪切斜裂縫的傾角？Compression fan and compression field.壓力扇 和壓力場。B-region and D-region. B 區(qū)和 D 區(qū)。The strut-and-tie

8、 model and its components.拉壓桿模型及其組 成部分。How to determine which strut-and-tie model is better?如何判另 U 拉壓桿模型的優(yōu)劣？33.Analysis of flexural sections under given conditions.在給定條件下混凝土受彎截面的分析。The contribution of tension flange to the flexural strength of the beam; shear lag concept.梁的受拉翼緣對受彎承載力的貢獻；剪力滯。Ductilit

9、y design of structures.結構的延性設計。The influence of confinement by stirrups on properties of concrete.箍筋約束對混凝土性能的影響。Factors influencing curvature ductility.影響截面曲率延性的因 素。Analysis of axial compression.軸壓截面分析。The approximate method for strength calculation by using the convex nature of failure surfaces.利用破

10、壞曲面的凸性的承載力近似計算。How to determine the effective length of a column.柱的計算長 度是如何確定的？How will the sidesway of a structure influence the effective length of columns?結構的側移對柱的計算長度有何影響？Equilibrium torsion and compatibility torsion and their examples. 平衡扭轉(zhuǎn)、協(xié)調(diào)扭轉(zhuǎn)及其例。Try to deduce the expression for plastic ultim

11、ate torque of concrete rectangular section.試導出素混凝土矩形截面的塑性極限扭矩的表達 式。Sand heap analogy.沙堆比擬。Torsional strength of complex sections made up of rectangles.由 矩形組成的復合截面受扭承載力。The angle of inclination of initial diagonal crack of a torsional member; the angle of inclination of critical diagonal crack of the

12、 member at torsional failure.受扭構件的初始斜裂縫傾角與最終破壞時的臨界斜裂縫的傾 角。The curve of interaction between ultimate shear and ultimate torque.梁受剪扭時，極限扭矩與極限剪力之間的相關關系。48.The expression for shear flow in an RC rectangular section subject to torsion.有腹筋矩形截面梁受扭時剪力流的表達式。The curve of interaction between ultimate moment an

13、d ultimate torque.極限扭矩與極限彎矩之間的相關關系。What are the factors influencing the bond stress between rebarand concrete ?鋼筋和混凝土之間粘結應力的大小與哪些因素有關？The distribution of bond stress along the longitudinal rebar of a beam before it is cracked.梁開裂前粘結力沿鋼筋縱向的分布。The influence of the position of a rebar in concrete on it

14、s bond behaviour .鋼筋在混凝土中的澆筑位置對其粘結性能的影響。The cracks caused by bond failure.粘結破壞的裂縫形式。The internal forces in a reinforced concrete slab.鋼筋混凝土板 中的內(nèi)力。The equilibrium equation that should be satisfied by the bending and twisting moments of a slab.板中的彎矩和扭矩應滿足的平衡方程。What is the use of torque in reinforcing

15、a slab.板中的扭矩對板 的配筋有何作用？The boundary conditions at simply supported boundary and fixed boundary of a slab.板的簡支邊和固定邊的邊界條件。Factors influencing puncing shear strength.影響沖切承載力的 因素。The effect of opening on the puncing shear strength.板中開洞 對沖切承載力的影響。Features of prestressed concrete.預應力混凝土的特點。The allowable z

16、one of c.g.s. in a statically determinate beam.靜 定梁中預應力筋中心線的容許區(qū)域。Equivalent load due to prestress.預應力產(chǎn)生的等效荷載。The concept of load balancing in designing a prestressed concrete beam.設計預應力混凝土梁時所用的荷載平衡法的概念。What is partial prestressing? Indicate this concept in themoment-curvature diagram through compari

17、son.什么是部分預應力混凝土?試用截面的彎矩-曲率圖的比較予以說明。The principal moment, the secondary moment and the combined moment in a prestressed concrete structure and the relation among them. 預 應力混凝土結構的主彎矩、次彎矩、綜合彎矩及這三者之間的關系。What is the linear transform of c.g.s. of a prestressed concrete structure? Of the quantities of prin

18、cipal moment, secondary moment, combined moment, support reaction, and compression line (C-line), which will change and which will not change under this linear transform?什么是預應力混凝土結 構中預應力筋形心線的線性變換？在此線性變換下，主彎矩、次彎矩、綜合彎矩、 支座反力、壓力線(C線)哪些變化，哪些不變化？The concept of concordant tendon.吻合鋼索的概念。Establishing the equilibrium equations of a rectangular flexural section after cracking within the given coordinates under the given assumptions.在給定坐標和給定假定下建立矩形受彎截面開裂后的平衡方程。Calculation of normal sections