结构工程

Based on full-probability,a new solving method for probability density of natural frequency of a stochastic truss is proposed.

0引言在许多工程实际中，结构的各种物理、几何参数的随机性是客观存在的且是不能忽视的。

Through a series of studies, the knowledge on key parameters such as distribution, magnitude and temporal variation of negative friction of structural pile foundation, and the location of neutral point is acquired, which is valuable and contributes largely to the subsequent construction of the Yangshan project.

通过一系列的研究，取得了对该结构桩基负摩擦力分布、数值大小、随时间变化的规律、中性点位置等关键参数的认识，对指导洋山后续工程的建设起到的很有价值的成果。

Based on the functional link network, a new algorithm is proposed to solve the multi-objective optimization problems in engineering structures.

基于函数联接神经网络，提出了一种解决工程结构多目标模糊优化问题的新算法。

With safety and reliability,the new mode sustains steep slope mining ,increases the angle of ultimate slope,and reduces 3%～5% of noneffective overburden amount.

通过新桥缓倾斜散体结构边坡工程模式的研究，提出了基于陡帮开采的安全清扫平台新模式。

This method is simple and convenient to solve, and has enough engineering accuracy. So if can be used for estimating the nonelastic seismic deformations of the structures.

本方法求解简便，且有足够的工程精度，可以用于结构的非弹性地震变形反应的计算。

The exploration of nonlinear random vibration with random parameters has engineering background and great academic value, and it is of theoretical significance as well.

随机参数非线性结构随机振动响应分析的研究有着广泛的工程背景和重要的理论意义与学术价值。

Most of them can be employed as engineers in the fields of the research and development, process, equipment design, manufacture and management of i norganic nonmetallic materials.

培养能在无机非金属材料结构研究与分析、材料的制备和加工成型等领域从事科学研究、技术开发、工艺和设备设计、生产及经营管理的工程技术人才。

Yet it cannot be evaluated by the normal dynamic equations based on acceleration parameters due to the limitation of response spectra for seismic design of buildings.

本文探讨了采用速度反应谱和位移反应谱分析的可行性；对结构时程分析法的工程应用价值和可操作性提出看法。

In this study, a moment method improved by the third-order normal transformation polynomial for practical slope reliability analysis with random variables having unknown distributions is discussed.

5在实际的结构或岩土工程中，有学者提出用变量正态化转换多项式解决仅知道变量前几阶统计矩的可靠性分析问题。

can be used to properly instruct design of nozzle structure.

在工程应用上，为选择合理的喷嘴结构具有一定的指导作用。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐