网格结构

• If we want to monitor the damage of the span lattice roof structure , the wind - induced responses and identification of parameters become the important problems first of all , which also the key technique of the damage monitoring of the structure . the method of time domain parameter identification is superior to the method in frequency domain : the structural response is only needed to identify the parameters of the structure
  时域参数识别方法具有频域方法无可比拟的优点,仅仅需要结构的响应信息,便可实现结构的参数识别,尤其对于大跨空间网格结构,人为激励往往有很多的弊端,因此,积极发展有效的时域参数识别方法,还是很有现实意义的。
• Compared with traditional plane structure , space grid structures possess many unique superiorities , it is a structure that combine mechanical rationality and manufacturing economy , architecture beauty and structural beauty , it provide probability and extensity to erect structures with rational form and spanning more space
  与传统的平面结构相比，网格结构具有独特的优越性，它是把力学的合理性和生产的经济性相结合，建筑美和结构美相结合的结构，为建筑合理的形体，跨越更大的空间提供了可能性和广阔性。
• This paper introduces the developing tendency of the space structure and the application of the pretensioned space lattice structure , summarize the analysis method and relation between lattice structure and pretensioned space lattice structure . dissertate the space pole - truss displacement method , tendon working principle , set forth the method of optimal design and whole process design . includes the use stage design and construction stage design of pretensioned space lattice structure
  本文首先介绍了空间结构的发展趋势及拉索预应力空间网格结构的应用情况，概述了网格结构与拉索预应力空间网格结构的分析方法及其相互关系，论述了空间杆系桁架位移法，拉索作用机理，阐述了拉索预应力空间网格结构的优化设计及全过程设计的设计方法，包括拉索预应力空间网格结构使用阶段的设计和施工阶段的设计。
• With phased array radar observing target ' s improvement of different performances of the aircraft , the deterioration of the working environment of radar and improvement of the radar demand request more and higher for putting forward the equipment of phased array radar video signal processing . the digital signal processing is all the time the developing direction of radar signal processing , its main shortcoming is that the increase processing precision , and the amount of information at the same time bring on the amount processing redouble , method to solve this problem is the real - time high speed digital signal processing system . presently multi - processors parallel processing is the focus of the field of high - speed real - time processing . this paper ' s background is the high - speed real - time signal processing of phased array radar . a parallel computing system designed with 4 adsp - 21060 analog device inc ' s dsp is presented . lt has fully utilized the dsp ' s characteristic to be supported the parallel computing , and formed a mes h architecture . this paper design and discusses this system in terms of design for test ( dft ) and real time operation system ( rtos ) , and have put forward the new solution for the design and development of the high - speed real - time signal processing system . . then , analysed the subject matter faced at the same time
  本文以高速实时相控阵雷达视频信号处理为背景，提出了一种由4片ad公司adsp - 21060构成的并行计算系统。它充分利用了adsp - 21060支持多处理器并行计算的特点构成了一种网格结构，并且从可测性设计、实时操作系统角度对该系统进行了设计与讨论，为高速实时信号处理系统的设计与开发提出了新的解决方案，同时分析了面临的主要问题。本文首先分析了相控阵雷达信号处理单元的特点，然后针对适合于片间并行的adsp - 21060讨论了并行计算结构，提出了一种采用四片adsp - 21060构成网格结构的信号处理平台，分析了它的工作原理。
• The inadequate response to this , we use java identity of cross - platform and proposed a framework - gpmj . gpmj is a framework that abstracts the details of interfacing with a grid infrastructure , resulting in a simple programming model that can be of substantial aid in the quicker development of maintainable grid client applications
  本文针对此不足,利用java程序的跨平台特性,提出了一个框架- gpmj ,它使得网格结构的接口的细节抽象化,构成了一个简单的编程模型,它能给予可维护的网格客户应用程序的开发一个实质性的帮助。
• Both latticed frame and reticulated shell are space grid structures , but their mechanical property has many difference , the integral stressing performance have analogy with slab in a sense , it mainly bear bending force ; then reticulated shell is mainly stress membrane fore , the integral mechanical property is similar to continuous shell
  网架和网壳虽同属于空间网格结构，但其力学性质有较大区别，网架在某种意义上其整体受力性能类似于平板，以受弯曲力为主；网壳则接近于连续壳体，结构受力以薄膜力为主。
• In fact , stuff quality of space grid structures member , manufacturing accuracy and construction management are major factor that influence development with high quality and high - level of space grid structures , space grid structures commonly with large span , and more is public buildings , important buildings , mass man under it , dearness equipments on it , erecting at high level , hardest strengthen when happen problems
  事实上，当前网格结构构件的材料质量，加工精度以及施工管理是影响网格结构高质量高水平发展的主要因素。网格结构一般跨度较大，而且多为公共建筑，重要建筑，下面人员众多，设备贵重，网架建在高空，出了问题极难加固。
• Pretensioned space lattice structure is a new kind of space structure which develops very fast in recent years . through taking the pretensioning with tendon , the space lattice structure could effectively improve the weight of bearing , control the distortion of the structure , minimize the cost of the engineering
  拉索预应力空间网格结构是近几年发展比较快的新型空间结构体系。在空间网格结构中通过拉索引入预应力，能够有效地提高结构承载力。控制结构变形，降低工程造价。
• 二 、 construction project organization latticed frame ( shell ) installation enterprise should set up project site organization institution adapted to project construction activities firstly before constructing and installing in the site , through discussing the designed principle and basis of construction project organization , the step of construction item organization of space grid structures are related as follows : project analysis , object working , agency and function determination , personnel and duty definition
  二、施工项目组织管理网架(壳)安装企业在现场施工安装前，首先应建立与工程项目施工活动相适应的项目现场组织机构，通过对施工项目组织形式设计的原则和依据论述，给出了网格结构施工项目组建的步骤：项目分析；目标划分；工作划分；确定机构及职责；确定人员及职责。