Users needn ’ t establish the model themselves . through the verification of practical engineering projects , the program afforded by this article is simple and easy to use , as well as accurate and reliable 运用本文开发的格构式动臂港口轮胎起重机结构参数化计算分析平台对qly50港口轮胎式起重机进行参数化建模分析,验证了本参数化设计分析平台的有效性和实用性。
Though the contrast of the algorithm used in cantilever lattice structure and cantilever solid web beam , we can get the algorithm that can be used to calculate the equivalent inertia moment of the lattice structure when it is regarded as solid web beam 并进一步延伸到四肢格构式构件等效惯性矩的计算,给出了四肢格构式构件等效为实腹式构件时,等效惯性矩的计算公式。
Based on the analytical model of the generalized force spectra of the first mode of typical lattice towers in along - wind direction , simplified empirical formulae to evaluate along - wind dynamic responses of lattice towers under wind load are proposed in this paper 摘要基于格构式塔架顺风向一阶广义荷载谱解析模型，提出了格构式塔架顺风向风振响应简化计算公式，这些简化公式将求格构式塔架顺风向风振响应的复杂积分变为简便的代数运算。
According to the elastic bucking theory this paper reviews and compares the calculations that such member bend around the reat axis and the hollow axis as well as bend with torsion around the hollow axis . here this paper presents a formula of calculating b used in with the h - shaped anglicizing element . meanwhile , this paper deduces out a formula of calculating b . by , which the member could be controlled to only buckle around the real axis 本文根据弹性屈曲理论对双肢格构式单轴对称缀板柱绕实轴、虚轴以及弯扭屈曲进行了计算分析和比较，提出了绕虚轴侧向屈曲的换算长细比_ ( oy ) = ( y ~ 2 + l ~ 2 ) ~ ( 1 / 2 )中的值用h计算单元指出的计算公式，同时推导出了单轴对称缀板柱只出现绕实轴弯曲屈曲的最小肢间间距b 。
The methods of modificatory lattice cross - section and equivalent circular cfst cross - section for calculating the maximum load of dumbbell cfst columns with eccentric loading were presented in this paper . the ultimate strength of 14 specimens were calculated by the two methods were close to experimental results . finally , the two methods were used to calculate the ultimate strength of arch bridge of zhengzhou yellow river highway 对现有钢管混凝土哑铃形构件极限承载力的计算方法进行了分析，在此基础上，提出了计算钢管混凝土哑铃形构件的偏压极限承载力的修正的格构式截面法和等效截面法，两种算法的计算结果与试验值均吻合较好，最后用这两种算法计算了郑州黄河公路二桥拱肋的极限承载力。
Vierendeel latticed shell , utilized the engineering principle of latticed bar in single - layer latticed shell , is a new type of space structures . it is not only simple and attractive , but also has the stability and bearing capacity of double - layer latticed shell , therefore it is an excellent type of new structure 空腹网壳是将格构式压杆的工作原理应用到单层网壳而形成的新型空间结构，该结构具有单层网壳简洁美观的优点，又有双层网壳的稳定性和承载力，是一种优良的结构形式。
Based on the research to the stability variable cross - section beam , the bending defection differential equation of the variable cross - section beam in critical state of bucking is established . according to the edge condition of the structure , the differential equation is solved and bucking equation of variable cross - section beam is created . we can get the algorithm which can be used to calculate the equivalent inertia moment of the variable cross - section lattice structure when it is regarded as constant cross - section of solid web beam 对变截面格构式构件的稳定性计算进行了初步的研究,通过建立变截面构件临界状态下弯曲变形的微分方程,根据变形边界条件,得到了两端铰支的变截面梁失稳特征方程,提出了几种特殊形式的变截面格构式构件等效为等截面实腹式构件时等效惯性矩的计算方法。
Secondly , by making use of the features of lattice frame anchor structure which can protect slope and retain stability of landslide together with its small space between beams and light anchor , the calculation model and formulas of slope force are dealt with and the design process of lattice beam and pillar as well as anchor and plate are introduced carefully 利用格构式锚杆框架结构所采用的小间距、小吨位锚杆及连续格构梁柱，从而使格构梁柱受力较均匀，适合松散堆积体滑坡治理的需要，即同时满足深层抗滑和浅层护坡。
