结构力学(双语)绪论综述.ppt

本学期教学内容The content of the course in this semester 1.序论 Introduction 2.几何组成分析 Geometrical construction analysis 3.静定梁和静定刚架 Statically determinate beams and rigid frames 4.静定拱Statically determinate arches 5.静定平面桁架Statically determinate plane trusses 6.静定结构位移计算 Computation of displacements of structures 7.力法 Force method 11.影响线 Influence lines 2.拱Arches：拱是一种杆轴为曲线且在竖向力作用下，会产生水平反力的结构 The centroidal axis of an arch is a curved line. Horizontal thrust will be developed at the supports under the action of vertical loads. 3.刚架Rigid frame： 刚架由直杆组成，其结点通常为刚结点及铰结点。 Rigid frame is composed by several members, hinged or rigidly connected at their ends * * 结 构 力 学 Structural Mechanics 双语课 Bilingual course 课程要求： 1.掌握课程常用的英语词汇，以便在考试时能 够理解英文试卷内容； 2.能够用英语理解课程的基本概念； 3.提倡用英语做作业； 4.不旷课，注意考勤，课堂安静，认真听讲。 5.勤奋学习，淡化学习方法； 6.独立认真做作业，作业整洁，不抄袭，按时交。 6.平时成绩占20％，主要考察考勤、作业、期 中考试，每学期写一篇小论文。 7.答疑，周二、周三下午，地点1－120。 英 文 作 业 示 范 小论文示范 研讨会照片 第一章 绪论 Chapter I Introduction §1-1 结构力学的研究对象和任务 The objective and task of Structural Mechanics 结构：建筑物、构筑物,或者能承担荷载起骨架作用的部分称为结构。 Structure is referred to as buildings, constructions or parts of them which can carry loads applied on them and maintain stability. 结构的分类Classification os structures: 分类名称 Classification 特点Characteristics 实例Examples 杆件结构 Framed structures 由杆件组成，是结构力学的研究对象 Composed by beams – the main objective of structural mechanics 梁Beams, 拱arches ,刚架rigid frames ,桁架trusses 板壳结构 Shells and plates 又称薄壁结构，几何特征是其厚度要比长度和宽度小的多 Thin-walled structures, thickness is much less than length and width. 房屋中的楼板和壳体屋盖 Floors and roofs of buildings 实体结构 Massive structures 长、宽、厚三个尺度大小相仿 Length,width and thickness has the same order 水工结构中的重力坝 Gravitational damp in hydraulic enineering Some examples of structures 杆件结构 Framed stuctures 平面杆件结构 Plane structures: all the members and the applied loads lie in a single plane Otherwise the structures are