【作者】 胡勇；

【导师】 龙炳煌；

【作者基本信息】 武汉理工大学 ， 结构工程， 2006， 硕士

【摘要】 混凝土这门古老而年轻的科学,随着现代土木工程的发展,对培养新一代的结构工程师提出了更新,更高的要求,然而就目前的教学形式和手段是滞后的,计算机和网络技术的发展和广泛应用,使得基于互联网的现代远程教育方式—网络教育,逐渐成为人们获取知识,实现终生学习的重要手段。网络课程是网络教育的重要资源,网络课程是教学内容的直接体现,教学支撑平台是实施网络教学活动的基础。 论文为申报国家精品课程项目—混凝土结构网络课程进行研究与探索服务,从混凝土力学出发,系统地总结和归纳受扭理论的历史,以力学原理为分析方法,以变角度空间桁架模型与斜弯力学模型为手段对受扭构件性能进行研究。 第一部分概述部分,分别对国内外受扭理论发展简史进行了总结和简单的介绍,并且提出了本课题研究背景与意义。 第二部分用混凝土力学对混凝土纯扭构件性能进行研究,并采用C语言程序进行全过程分析,并将程序的计算结果和试验结果与规范计算值进行对比,对受扭力学性能和混凝土强度、配筋率、有效壁厚、扭转角以及配筋强度比等参数进行分析,反应受扭的力学性能; 第三部分用混凝土力学对混凝土纯扭构件性能进行研究,分析弯扭受力相关性,结合工程常用配筋比与弯扭复合受扭的力学分析,简化弯扭受力模型,得出含有配筋比参数的弯扭相关方程,与实验结果进行对比,为提出符合弯扭相关性形式的统一设计公式提供参考; 第四部分是对网络课程发展现状以及网络课程的定义、混凝土结构课程特点进行了介绍,并基于以上的研究提出受扭网络课程大纲,为混凝土结构网络课程申报国家精品课程建设作为参考。 最后,在总结本文所做工作的基础上,提出需要进一步研究的问题。更多还原

【Abstract】 With the rapid development of civil engineering, old and younger science of concrete be faced with new challenge for teaching way and means is lagging. With the development and the extensive applications of computer and network, network education, a modem long-distance education method, becomes a main way for people to obtain knowledge and learn all lifetime. Network Course is the important resource for Network Education. It is direct embodiment of the teaching contents, platform is the foundation to actualize the network teaching activities.The paper is used to apply for national perfect curriculum. The paper, which is based on concrete mechanics, systematically summarized the history of theory about torsion, and researched on performance of member under torsion.In the first part, the paper simply summarized the history of theory about torsion and putted forward the background and meaning of research.In the second part, the paper studied and generalized the mechanics model and analysis of the member under torsion. In addition, the paper did an analysis of the whole process with C language. In this analysis, the paper contrasted the calculating data and code values, and did an analysis of mechanics behavior of torsion, and did an analysis of Strength ratio of distributed steel ratio of reinforcement concrete strength. Etc. These perfectly reflected the mechanics behavior of torsion.In the third part, the paper studied and generalized the mechanics model and analysis of reinforced concrete members subjected to combined torsion, analyzed relevance of bend-torsion under stress. The paper simplified the model of bend-torsion under stress by combining with mechanical analysis. Finally, the paper obtained the relativity formulas of bend-torsion, which provided reference for uniform design formula about calculation of bend-torsion.In the forth part, the paper introduced development status the definition and the characteristics of the network course. Based on these studies, the paper put forward the syllabus of the network course, which is reference to apply for national perfect curriculum.At last, Based on mentioned above, the paper put forward some problems which needed further research.更多还原