| 控制截面的极限分析法速算最大剪力与弯矩 |
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| 引用本文： | 张国锋,;宁录,;赵帅阳,;彭岩岩,;宫伟力. 控制截面的极限分析法速算最大剪力与弯矩[J]. 科技咨询导报, 2014, 0(24): 98-99 |
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| 作者姓名： | 张国锋, 宁录, 赵帅阳, 彭岩岩, 宫伟力 |
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| 作者单位： | [1]中国矿业大学北京力学与建筑工程学院,北京100083; [2]中国矿业大学北京机电与信息工程学院,北京100083; [3]中国矿业大学北京地球科学与测绘工程学院,北京100083 |
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| 摘 要： | 剪力和弯矩是梁弯曲时横截面上存在的两种基本内力。基于这两种内力之间的微分关系，用控制截面法计算其最大剪力与弯矩。不仅解题速度快而且正确率也高，能真正达到事半功倍的效果。老师在引导学生用这种方法分析题目时，当学生有了一定的感悟和表达，不要急于将剩下的一切和盘托出，而要趁热打铁，不断连续追问，充分调动每位学生的积极性，以最大限度挖掘学生的潜能，这种互动启发式的教学方法正是当今中国高等教育改革应当大力推荐的教学方法。
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| 关 键 词： | 控制截面 剪力 弯矩 互动启发式教学 |
Control section of limit analysis to simplify maximum shear force and bending moment |
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| Affiliation: | Zhang Guofeng, Ning Lu, Zhao Shuaiyang, Peng Yanyan, Gong Weili (1 School of Mechanics ＆ Civil Engineering, China University of Mining ＆ Technology , Beijing ,100083; 2. School of Mechanical Electronic ＆ Information Engineering, China University of Mining ＆ Technology, Beijing 100083;3. College of Geoscience ＆ Surveying Engineering , China University of Mining ＆ Technology, Beijing 100083) |
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| Abstract: | Shear force and bending moment are two kinds of basic internal force on the bending beam, based on the differential relation between the two kinds of internal force with control section method for calculating the maximum shear force and bending moment can not only fast but also high accuracy, in this way can we really achieve twice the result with half the effort. While teachers guiding students to analysis the topic in this way, when students have a certain feeling and expression, don’t jump to the rest of the CARDS but strike while the iron is hot, and keep continuous cross-examine, fully arouse the enthusiasm of each student, excavate the potential of students to the largest extent, the interaction of heuristic is one of the teaching method that China’s higher education reform should be strongly adopted. |
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| Keywords: | Control section shear Force bending moment interaction heuristic teaching |
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