【作者】 刘永军； 祁皑； 宋岩升；

【Author】 Liu Yong-jun~1 Qi Ai~2 Song Yan-sheng (1.School of Civil Engineering,Shenyang Jianzhu University,Shenyang,China 110168; 2.School of Civil Engineering,Fuzhou University,Fuzhou,China 350002)

【机构】 沈阳建筑大学土木工程学院； 福州大学土木工程学院；

【摘要】 在结构力学中,用力法求解超静定结构时,需要首先确定结构的超静定次数,本文提出确定超静定次数的一种新方法,称为"拆杆法"。其原理是:依次拆除结构中的杆件或支座,直至变为静定结构,拆除约束的和,即为结构的超静定次数。教学实践证明,"拆杆法"易于理解,便于使用。更多还原

【Abstract】 In Structural Mechanics,the degrees of indeterminacy of a statically indeterminate structure must be determined before analyze the structure with force method.A new method for determining degrees of indeterminacy of statically indeterminate structures,termed deleting members method(DMM),is introduced.First,deleting members or supports until the structure becomes a statically determinate structure.Second,adding up all the deleted constraints and the sum is the degrees of indeterminacy of the structure.Teaching practices demonstrated that the new method is effective and easy to grasp for students.更多还原