The effect of an applied electric field on the binding energy of shallow donor impurities in rectangular cross section gaas qwws was presented by montes et al , by considering an infinite confinement potential and using a variational scheme 外加电场对矩形量子阱线中浅施主杂质束缚能的效应是由montes等人提出的,他们采用变分法讨论了无限深势阱的量子线结构。
Meanwhile the effects of slenderness ratio and load eccentricity on the ultimate load - capacity of slender composite columns are numerically analyzed and discussed in detail . then a t - shaped slender composite column under axial load and two groups of slender composite columns of rectangular cross section subjected to combined biaxial and lateral loads are analyzed , the load - carrying and deformation behaviors of such columns are analyzed and discussed 在此基础上,对一偏压荷载作用下的t型截面组合长柱和两组横向与偏压荷载共同作用下的矩形截面长柱分别进行了实例计算,就不同荷载情况下组合长柱的受力与变形特性进行了分析和讨论。
In order to implement the proposed numerical procedure , a two - module computer program is developed with the computational module in visual fortran code and the data - input module in visual basic code . using the numerical procedure , two groups of slender composite columns of rectangular cross section are first analyzed . the obtained results are compared with the corresponding test results and good agreement is found 应用编制的计算程序首先对两组矩形截面组合长柱的试件进行了实例计算,并与试验结果作了比较,验证了计算方法和程序的正确性和有效性;同时就柱子长细比、荷载偏心距对长柱极限承载力的影响进行了较详细的数值分析和讨论。
As numerical examples , a slender composite column of rectangular cross section with embedded h - shape structural steel is first considered . the complete load - deflection curve is obtained and compared with the corresponding experimental results . the comparison demonstrates the validity and accuracy of the proposed method 应用编制的计算程序,首先对一配有工字型钢的矩形截面长柱进行了计算分析,获得了长柱的荷载-挠度全过程曲线,并与试验结果作了比较,验证了计算程序的正确性和有效性。
Based on the above contribution the method is used to evaluate the accuracy and limitation of the simplified design methods proposed by the chinese jgj 138 - 2001 specification and yb9082 - 97 specification , which are only suitable for concrete encased composite columns of rectangular cross section with doubly symmetric structural steel . several valuable conclusions and suggestions for practice design are obtained 在此基础上,利用计算机程序对国内两个组合柱设计规程,建设部颁布的《型钢混凝土组合结构技术规程》 ( jgj138 - 2001 )和冶金部颁布的《钢骨混凝土结构设计规程》 ( yb9082 - 97 )中建议的配置对称结构钢的矩形截面型钢-砼柱的简化设计方法进行了分析和评估,获得了一些对工程设计有价值的结论和建议。