【摘要】 桥梁电算当中,桥梁结构内力分析涉及空间梁格的影响线计算问题,当前采用的一些算法在工程应用中有一定的不足.依据内力影响线定理,采取ANSYS提供的单元生死功能顺利实现在关心节点处的相对单位位移,使该定理直接能够用于实际计算,并在ANSYS平台进行了二次开发,编制了相应的宏,能够高效地解决梁格类复杂的空间结构影响线计算问题.更多还原

【Abstract】 On the computer calculation of bridges, the internal force analysis of space structures often involves the calculation of influence line. But the general methods presently used can not meet the needs of practical engineering. According to the influence line principle, a new and more effective method is given. By creating the relative unit displacement on the concerned node, the influence line principle is employed directly into the practical engineering calculation. The code of our method is written by some ANSYS macros. The results proved that this method can calculate the influence line of the complex structures such as space gridiron successfully and efficiently.更多还原