With a longitudinal axis of steel stirrups and the general failure mode of compression members, bearing capacity; Longitudinal and spiral reinforcement with stirrups failure modes of axial The concept of stability factor and its influencing factors; Analysis of the core concrete strength and strength calculation; Ordinary hoops column, spiral column reinforcement stirrup features and construction requirements

Computation of Stress, Crack width and Reflection of RC Flexural Members  Characteristics of use of reinforced concrete beam during the calculation.  The concept of transformed section and the geometric characteristics.  The stress state of reinforced concrete short-term checking.  Flexural members of the cracks and the maximum width of crack.  Deformation of flexural members.  Durability of concrete structures

bias components are the mechanical characteristics of cross sections and two failure modes, Boundaries and determine the size of bias conditions; Familiar with eccentric compression of the second-order effect and calculation; Eccentric rectangular cross-section bearing capacity of compression members is calculated, Including the formula, the formula of the applicable conditions of reinforcement and non-symmetrical Design and reinforcement of the cross-section symmetrical cross section for review; I-shaped, T shaped eccentric compression AND CIVIL ENGINEERING Calculation method; Circular section eccentric compression member cross section design and review; Eccentric compression reinforcement of the structure and reasonable layout requirements

Oblique cross-section flexural members of the mechanical characteristics and failure modes. Oblique section of bending members the main factor for shear strength. Flexural oblique shear strength formula for conditions. Such a high degree of web reinforcement beams of the preliminary design steps. Resisting moment mapping. Check all of bearing capacity and structural requirements. Construction oblique shear strength calculations

Basic Concepts of Reinforced Concrete Structure and Physical and Mechanical Properties of Materials Basic Concepts of Reinforced Concrete(RC) Strength and deformation of concrete under various stress conditions Type ,Grade and Mechanical Properties of Steel Reinforcement Bond between concrete and steel reinforcement

第一节概述 一、概念 轴心受拉构件:当纵向拉力作用线与构件截面形心轴线相重合时的受力构件。 偏心受拉构件:当纵向拉力作用线偏离构件截面形心轴线,或者构件上既作用有拉力,同时又作用有弯矩时的受力构件。 二、工程上应用 在钢筋混凝土桥中,常见的受拉构件有:桁架拱桥中的拉杆,桁架梁桥中的拉杆等。 三、钢筋混凝土受拉构件中的主要钢筋 纵向钢筋:数量由计算确定。 箍筋:按构造确定

9.1 预应力混凝土的基本概念 9.2 张拉控制应力与预应力损失 9.3 后张法构件端部锚固区的局部承压验算 9.4 预应力轴心受拉构件各个阶段的应力分析 9.5 预应力混凝土受弯构件计算

轴心受拉构件从加载到破坏,其受力过程分 为三个阶段:从加载到砼受拉开裂前,砼开裂后 到钢筋即将屈服,受拉钢筋开始屈服到全部受拉 钢筋达到屈服。 轴心受拉破坏时混凝土裂缝贯通,纵向拉钢筋达 到其受拉屈服强度,正截面承载力公式如下:

本章学习的主要内容及基本要求 1.局部承压的破坏形式和机理。 2.局部承压强度提高系数及计算方法。 重点: 掌握局部承压的强度提高系数及计算方法

§7.1 概述 §7.2 纯扭构件的试验研究 §7.3 纯扭构件的扭曲截面承载力 §7.4 弯剪扭构件的扭曲截面承载力