| 1. | Using the analysis method , the calculating method and practical formula of transverse and longitudinal column effective length coefficient of staggered truss framing have been done systematically and completely at the first time
本文采用解析法，首次全面系统地推导出错列桁架体系横向和纵向柱子计算长度系数的计算方法和实用计算公式。 |
| 2. | The load stress and the thermal stress of concrete pavement with lean concrete base are analyzed by three - dimensional finite element method , and the practical formulas of load stress under different axle load models and of thermal stress are get by regression method
利用三维有限元方法对贫混凝土基层混凝土路面进行了荷载应力和温度应力的大量计算，通过回归，得出了贫混凝土基层混凝土路面荷载应力及温度应力实用计算公式。 |
| 3. | When the axis force p is much greater than the moment m , the out - of - plane column - instability mode is dominated . otherwise , the in - plane instability mode of the beam - column is dominated . at the end of this part , the practical formula of box section beam - columns is suggested which avoid the incorrect concept of
最后对数据进行分析、拟合，得到了实用的计算箱形柱压弯构件承载力的计算公式，并消除了规范中稳定系数罗_ b > 1 . 0的概念错误。 |
| 4. | First , the basic mechanical capability and creep were proceeded on the material test system with the modified three point bending creep fracture test . the modulus and fracture toughness and tensile strength was attained and creep curve in 200 temperature was also presented . applying basic damage mechanical theory , thermal damage analyses were performed induced in fracture toughness and modulus , the practical formula of damage factors varying with temperature and time was given
首先利用改进的三点弯曲试验在mts实验机上进行了岩石力学性能和蠕变测试，得到了花岗岩在温度影响下的弹性模量和断裂韧度以及抗拉强度变化规律，并得到了200下北山花岗岩蠕变全过程曲线。 |
| 5. | Once again , contraposing the specific case in engineering strengthening and the shortcoming in the strengthening concrete norm , the author puts forward modified means that designer should examine the internal force after esmating the prestressed tension rod sectional area and deduce the practical formula used in the examining
再次，针对加固规范和工程设计不完善的情况，提出了先估算后较核的改进办法，并推导出较核中易用的预应力等效弯矩、轴力的计算公式。 |
| 6. | Study of practical formula about strength and rigidity of 6 - point - supported - glass using the super sap fea software to solve different calculation models - which have different parameters , such as a / b , a / c and so on , this paper achieves a series maximum deflection coefficients and maximum stress coefficients , then form calculation formulas of maximum deflection and maximum stress under the load of wind
6点支承玻璃强度刚度实用的计算公式研究采用supersap有限元分析，求出不同的计算模型(玻璃板的尺寸参量a b ， a c不同) ，得出一系列最大挠度系数和最大应力系数，形成6点支承玻璃在风载荷作用下的最大挠度计算公式和最大应力的计算公式。 |
| 7. | In this paper , torsional - flexural buckling of single - angle members is researched deeply and systematically by ultimate strength theory and general fem analysis software ansys , and is contrasted with some codes , as a result the simple and practical formulas for stability coefficient are recommended for design purpose
本文采用极限强度理论和通用有限元分析软件ansys ，系统深入地研究了单角钢轴心受压构件的弯扭失稳，并与多本规范进行了对比分析；在此基础上提出简单实用的稳定系数计算公式，以便工程设计参考。 |
| 8. | A conclusion can be safely obtained : under the condition of considering geometric size c , which is a measurement from the center of a hole to the nearest side in the 6 - point - supported - glass , the analytic approach and the numerical analysis approach ( i . e . fea ) have a smooth unanimity , thus supplying a theoretical basis on which practical formula can be deduced through fea
得出结论： 6点支承玻璃在考虑孔边距c影响的条件下，采用解析法与采用数值法进行计算，有较好的一致性。从而为采用有限元分析推导实用的计算公式提供了理论依据。 |
| 9. | Six circular concrete columns were tested under concentric loading , to investigate the confinement effect of confining reinforcement in both normal strength and high strength concrete columns . test results were analyzed and compared . practical formulas were proposed for the minimum volumetric ratio and the spacing of the stirrups
通过对6根圆柱体混凝土柱的轴压试验，研究普通混凝土及高强混凝土在箍筋作用下的约束效应，并将试验结果进行分析比较，提出了配箍率及箍筋间距实用计算公式。 |
| 10. | The main work of this thesis includes : 1 . using energy theory , the cable sag and bending stiffness effects are investigated on the determination of cable tension forces through cable ' s fundamental frequency . based on the curve fitting , the practical formulas are proposed where the cable tension can be easily estimated using measured fundamental frequency
本文的主要工作包括： 1 .考虑拉索的垂度和抗弯刚度对基频的影响，用能量的方法，并辅以曲线拟合，提出了由基频计算索力的实用公式，公式与理论解的误差在以内，并对公式的适用范围进行了讨论。 |
