Mastering Shear Force and Bending Moment Diagrams

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课程主页: https://www.udemy.com/course/mastering-shear-force-and-bending-moment-diagrams/

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课程名称:掌握剪力和弯矩图 课程概述:本课程结合讲师在结构工程领域的丰富教学经验,采用手绘笔记和草图的方式进行授课,适应不同类型的学习者。学生将在每节视频讲座中积极记笔记,避免“死于PPT”的现象。课程将首先着重基础知识,然后再深入示例分析。课程现已更新,新增可选侧项目,通过Python构建剪力和弯矩图计算器。实践是巩固所学技能的重要环节,计算器将帮助学生练习,若不想学习Python,也可以简单观看第一节视频了解计算器的使用,并将其作为学习辅助工具。完成所有讲座和练习后,学生将掌握这一土木工程基本技能。 第一部分:基础知识回顾,学习如何确定静定结构的支撑反应。 第二部分:理解内部弯矩,探讨弯矩与结构内部应力状态的关系,并运用平衡原理确定结构任意点的内部弯矩。通过实例加深理解。 第三部分:理解内部剪力,利用类似的方法探讨剪力与剪应力的关系,并引入符号约定,通过实例确认理解。 第四部分:加载、剪力和弯矩之间的微分关系,建立系统的方法来构建弯矩图和剪力图,确保每次都能100%准确。 第五和第六部分:将所学知识整合,通过实例进一步巩固,重点在梁结构和框架结构中应用所学工具和技巧。到此,学生将能自信地分析任何遇到的静定结构,下一步将学习静不定结构。

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Each lecture is developed and delivered with the benefit of my experience as a university lecturer in structural engineering. The teaching style appeals to all types of learners with material developed through hand-drawn notes and sketches. Students are encouraged to engage with each lecture by actively developing their own notes during each video lecture…no ‘death by PowerPoint' here! We'll focus on pinning down the basics before diving into worked examples. COURSE UPDATE - I've just added an optional side project to the course in which we build a Shear Force and Bending Moment Diagram Calculator using Python. Practice is really important for embedding the skills you will learn in this course. But you'll quickly run out of example questions and this is where your calculator can come in handy. If you have no interest in Python and don't want to build the calculator, no problem, just watch the first video to see how to use it and go ahead and download it as a study aid.If you follow all lectures and attempt all of the worked examples, by the end of the course you will have an excellent grasp of this essential civil engineering skill! Section 1: Reviewing the basicsBefore we get into the detail of shear force and bending moment diagrams, first we need to do a little housekeeping. We'll clarify a few assumptions that apply to our analyses and make sure you can determine support reactions for statically determinate structures.Section 2: Understanding internal bending moments In this section we start laying the foundation for your understanding of bending moments. We kick things off by considering how the bending moment relates to the state of stress within the structure - we're trying to answer the question 'what is the bending moment telling us about the state of stress within the structure?'.Then we'll see how the principle of equilibrium allows us to determine the internal bending moment at any point within the structure. This will prepare us nicely to start thinking about how the bending moment changes along the structure.We'll wrap this section up with some worked examples to make sure you understand everything we have discussed in the section.Section 3: Understanding internal shear forces Everything we've done for bending moments we're going to now do for shear forces:relating shear stress to shear forcecutting the structure to reveal the internal shear forceintroducing a sign conventionAs always we'll confirm you understand everything by completing some worked examples.Section 4: Differential relationships between loading, shear force and bending moment In this section we take our understanding to the next level. We're going to establish the relationships (and rules) that allow us to systematically build bending moment and shear force diagrams - 100% accurately every time. By the time you complete this section, you will understand how these diagrams can be developed in a systematic way, ensuring success every time.Section 5 & 6: Bringing it all together - Worked ExamplesIn these final two sections we reinforce everything you have learning so far. Remember, structural analysis, like any other skill only improves through practice. By putting everything you have learning over the previous 4 sections into action here, you're ensuring the skills are embedded. We will start on familiar ground in section 5 by considering beam structures. In section 6 we'll map what you have learned onto frame structures - greatly expanding the applicability of the tools and techniques you have developed in this course!At this point you can confidently analyse any statically determinate structure you're likely to come across in your civil engineering studies or career. Next step...statically indeterminate structures!

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