山东理工大学：《荷载与结构设计方法》课程教学课件（讲稿，双语）Chapter 1 Introduction

Contact information 。Mobile Phone: 15666536533 。Email: cgwang@sdut.edu.cn ·QQ: 32231453 。Office: 12#327 归东理子大军 SHANDONG UNIVERSITY OF TECHNOLOGY

Contact information • Mobile Phone: 15666536533 • Email: cgwang@sdut.edu.cn • QQ: 32231453 • Office: 12#327

课程简介 本课程为双语课，将会以中文和英文来教授。考核方式为考试 课，最终成绩由平时成绩和考试成绩两部分组成，考试成绩占60%， 平时成绩40%，包括出勤情况、听课、小组讨论、作业、在线测试 等。 教学大纲，课程目标等见网络教学平台。 归东理子大军 SHANDONG UNIVERSITY OF TECHNOLOGY

课程简介 本课程为双语课，将会以中文和英文来教授。考核方式为考试 课，最终成绩由平时成绩和考试成绩两部分组成，考试成绩占60%， 平时成绩40%，包括出勤情况、听课、小组讨论、作业、在线测试 等。 教学大纲，课程目标等见网络教学平台

Chapter 1 Introduction 1 hour Chapter 2 Gravity Load 3 hours Chapter 3 Water Actions 1 hour Chapter 4 Wind Load 2 hours Chapter 5 Earthquake actions 2 hours Chapter 6 Other actions 1.5 hours Chapter 7 Statistical analysis of loads 1.5 hours Chapter 8 Statistical analysis of resistance 2 hours Chapter 9 Reliability analysis of structure 1 hour Chapter 10 Structural probabilistic reliability-based design approaches 1 hour Totally 16 hours 归东理工大军 SHANDONGANIVERSITY OF TECHNOLOGY

4 Totally 16 hours Chapter 1 Introduction 1 hour Chapter 2 Gravity Load 3 hours Chapter 3 Water Actions 1 hour Chapter 4 Wind Load 2 hours Chapter 5 Earthquake actions 2 hours Chapter 6 Other actions 1.5 hours Chapter 7 Statistical analysis of loads 1.5 hours Chapter 8 Statistical analysis of resistance 2 hours Chapter 9 Reliability analysis of structure 1 hour Chapter 10 Structural probabilistic reliability-based design approaches 1 hour

Chapter 1 Introduction 1.1 Actions and effects on structure 1.2 representative values of loads 1.3 Evolution of design theory on structure G 山东理王大军 SHANDONG UNIVERSITY OF TECHNOLOGY

Chapter 1 Introduction 1.1 Actions and effects on structure 1.2 representative values of loads 1.3 Evolution of design theory on structure

1.1 Actions and effects on structure Actions on structure Definition:concentrated or distributed loads imposed on structure and the other factors caused additional or constrained deformation on structure. ·定义：施加在结构上的集中或分布荷载，以及引起结构外加变形或约 束变形的原因。 归东理子大军 SHANDONG UNIVERSITY OF TECHNOLOGY

1.1 Actions and effects on structure • Actions on structure ▫ Definition: concentrated or distributed loads imposed on structure and the other factors caused additional or constrained deformation on structure. ▫ 定义：施加在结构上的集中或分布荷载，以及引起结构外加变形或约 束变形的原因

1.1 Actions and effects on structure 。Actions on structure Classification by action mode作用形式： ·Direct actions.直接作用：imposed in terms of"force'”,usually called"load'. ·eg structural self-weight,weight of assembly of persons,equipment,vehicle and so on ·Indirect actions间接作用：imposed in terms of“deformation", ·e.g foundation settlement causing external structural deformation,temperature change, ground movement due to earthquake 归东理王大军 SHANDONG UNIVERSITY OF TECHNOLOGY

1.1 Actions and effects on structure • Actions on structure ▫ Classification by action mode作用形式:  Direct actions直接作用: imposed in terms of “force”, usually called “load”.  e.g. structural self-weight, weight of assembly of persons, equipment, vehicle and so on  Indirect actions间接作用: imposed in terms of “deformation”,  e.g. foundation settlement causing external structural deformation, temperature change, ground movement due to earthquake

1.1 Actions and effects on structure Actions on structure Classification by action duration作用时间： ·Permanent actions永久作用：constant magnitude,negligible variation or monotonic variation to a limit ·e.g self-weight,earth pressure,hydrostatic pressure ·Variable actionsi可变作用：the magnitude varies during service period and the variation is NOT negligible. ·e.g live loads on floor,roof;wind load,snow load ·Accidental actions偶然作用：may not happen during service period,once happened: huge magnitude but short duration. ·eg seismic action,blasting force 归东理子大军 SHANDONG UNIVERSITY OF TECHNOLOGY

1.1 Actions and effects on structure • Actions on structure ▫ Classification by action duration作用时间:  Permanent actions永久作用: constant magnitude, negligible variation or monotonic variation to a limit  e.g. self-weight, earth pressure, hydrostatic pressure  Variable actions可变作用: the magnitude varies during service period and the variation is NOT negligible.  e.g. live loads on floor, roof; wind load, snow load  Accidental actions偶然作用: may not happen during service period, once happened: huge magnitude but short duration.  e.g. seismic action, blasting force

1.1 Actions and effects on structure 。Actions on structure ·Classification by spatial location?空间位置： ·Fixed actions個定作用：fixed distribution but varied magnitude. ·eg tank weight on roof,fixed equipment weight ·Free actions可s动作用：free distribution with random location and magnitude ·e.g vehicle load,crane load 归东理子大军 SHANDONG UNIVERSITY OF TECHNOLOGY

1.1 Actions and effects on structure • Actions on structure ▫ Classification by spatial location空间位置:  Fixed actions固定作用: fixed distribution but varied magnitude.  e.g. tank weight on roof, fixed equipment weight  Free actions可动作用: free distribution with random location and magnitude.  e.g. vehicle load, crane load

1.1 Actions and effects on structure Actions on structure ·Classification by structural reaction结构反应： ·Static actions静态作用：cause no or little acceleration in structure. ·eg self-weight,load of persons on floor,earth pressure ·Dynamic actions动态作用：cause innegligible acceleration in structure. ·e.8 seismic actions,pile striking actions,wind load on high-rise buildings 的东理王大军 SHANDONG UNIVERSITY OF TECHNOLOGY

1.1 Actions and effects on structure • Actions on structure ▫ Classification by structural reaction结构反应:  Static actions静态作用: cause no or little acceleration in structure.  e.g. self-weight, load of persons on floor, earth pressure  Dynamic actions动态作用: cause innegligible acceleration in structure.  e.g. seismic actions, pile striking actions, wind load on high-rise buildings

1.1 Actions and effects on structure 。Effects on structure Definition:the caused internal forces and deformation by imposed actions. When imposed action is direct action,the effect is also called Load Effect 。 效应 The relation between load Q and load effect S is usually considered as linear relationship: S=CQ where C is load effect coefficient,which is a constant. G 归东理王大军 SHANDONG UNIVERSITY OF TECHNOLOGY

1.1 Actions and effects on structure • Effects on structure ▫ Definition: the caused internal forces and deformation by imposed actions.  When imposed action is direct action, the effect is also called Load Effect荷载 效应. The relation between load Q and load effect S is usually considered as linear relationship: where C is load effect coefficient, which is a constant. 𝑆𝑆 = 𝐶𝐶𝐶𝐶