二级考试房建实务的可编辑教材.doc

工程力学与工程结构
一、内容提要
1A410000  房屋建筑工程技术
lA411000  工程力学与工程结构
1、1A411010  掌握杆件强度、刚度和稳定的基本概念
2、1A411020  掌握平面力系的平衡方程及杆件内力分析
3、1A411030  掌握主要工程结构的受力特点及应用
4、1A411040  熟悉常用房屋结构的形式、体系和受力特点
5、1A411050  了解建筑抗震基本知识
二、重点、难点
1、1A411010  掌握杆件强度、刚度和稳定的基本概念
2、1A411020  掌握平面力系的平衡方程及杆件内力分析
三、内容讲解
1A410000  房屋建筑工程技术
lA411000  工程力学与工程结构
1A411010  掌握杆件强度、刚度和稳定的基本概念

lA411011  杆件的基本受力形式

   结构杆件的基本受力形式按其变形特点可归纳为以下五种：拉伸、压缩、弯曲、剪切和扭转。
1A411012  杆件强度的基本概念
   结构杆件在规定的荷载作用下，保证不因材料强度发生破坏的要求，称为强度要求。
lA411013  杆件刚度的基本概念
   结构杆件在规定的荷载作用下，虽有足够的强度，但其变形也不能过大，超过了允许的范围，也会影响正常的使用。限制过大变形的要求即为刚度要求。
   梁的变形主要是弯矩所引起的，叫弯曲变形。剪力所引起的变形很小，可以忽略不计。
   影响位移因素为：
   (1)材料性能：与材料的弹性模量E成反比。
   (2)构件的截面：截面越大惯性矩越大，与
Structural Engineering Mechanics and Engineering
Executive summary
1A410000 housing construction technology
lA411000 Structural Engineering Mechanics and Engineering
1,1 A411010 grasp the bar strength, stiffness and stability of the basic concepts
2,1 A411020 control plane forces in the equilibrium equations and analysis of internal forces of rod
3,1 A411030 grasp the main characteristics of engineering structures and application of force
4,1 A411040 familiar with the common form of housing structures, systems and force
5,1 A411050 basic knowledge about building earthquake
Second, focus, and difficult
1,1 A411010 grasp the bar strength, stiffness and stability of the basic concepts
2,1 A411020 control plane forces in the equilibrium equations and analysis of internal forces of rod
Third, explain the contents of
1A410000 housing construction technology
lA411000 Structural Engineering Mechanics and Engineering
1A411010 grasp the bar strength, stiffness and stability of the basic concepts

lA411011 rods form the basic force

   The basic structure of rods form their force deformation characteristics can be summarized in the following five categories: tension, compression, bending, shear and torsion.
1A411012 bar the basic concept of strength
   Structural Rod in the prescribed loads to ensure that no damage occurs due to material strength requirements, known as the strength requirements.
lA411013 the basic concepts of Stiffness
   Structural bars under the prescribed load, although adequate strength, but the distortion can not be too large, exceed the permitted range, will also affect the normal use. Too restrictive requirements shall deformation stiffness requirements.
   Beam deformation is mainly caused by the moment, called the bending deformation. Shear deformation caused by small, can be neglected.
   Factors affecting the displacement:
   (1) material properties: elastic modulus and inversely proportional to E.
   (2) members of the section: the larger section of the greater moment of inertia, and