钢桁架

• In this paper , mid - rise shear wall with concealed truss has been brought forward . this new composite shear wall includes two kinds of composition . one is composition of two bearing systems - truss and shear wall and the other is composition of two materials - steel and concrete
  本文主要工作: 1 .首次提出了一种新型内藏钢桁架混凝土组合中高剪力墙,该新型组合剪力墙包含两种组合,即不同受力体系桁架与剪力墙的组合、不同材料型钢与混凝土的组合,形成了双重组合剪力墙。
• Based on the system engineering theory , and through detailed analysis of economic techniques of the engineering work plan examples of the common used long span steel truss structures , utilizing the sequenced layer analysis , the current paper will establish the long span engineering work plan index system . also by the fuzzy mathematical principles , it builds multi - layer fuzzy complex mathematics judgment and calculate the weight coefficient of each index by application of fuzzy power duality method ; and based upon the experts investigation method builds each index judgment matrix . finally applying the current popular update system tool - power builder 8 . 0 developed the " optimization system of ( construction ) fuzzy work plan " to solve and carry out the multi - layered fuzzy combination judgment ; then step on the analysis and research on the reliability of the optimal solution for further achievement of the final objective of the fuzzy optimization in selecting the construction work plan of long - span steel truss realization
  本文以系统工程学的理论为基础，通过工程实例对常用大跨度钢桁架结构施工方案进行详细的技术经济分析，运用层次分析法建立起大跨度钢桁架结构施工方案的指标体系，利用模糊数学原理建立了多层次模糊综合评判数学模型，采用模糊权重二元对比法计算出各指标的权重系数，并采用专家调查法建立各指标的评判矩阵，利用目前最流行的工具系统- powerbuilder8 . 0编制了《建筑施工方案模糊优选系统》求解计算，进行多层次模糊综合评判；调整权重和隶属度，对数学模型最优解的可靠性作了进一步的分析和研究，从而达到模糊优化选择大跨度钢桁架结构施工方案的最终目的。
• Abstract : based on the fundamental theory of computation of the cable - prestressed steel trusses established in paper 1 , the iterative perturbation formulas which inversively determine the stiffenesses of elements of steel trusses and cables with the restraint of vertical displacements of the truss are put forward on matrix perturbation principle
  文摘:基于文1所建立的拉索式予应力钢桁架基本计算理论，根据矩阵摄动原理进一步给出了以竖向结点位移为约束反演确定任意布索张拉予应力钢桁架单元刚度和拉索刚度的摄动迭代公式。
• First , the load effect influence factor to the steel truss transfer story , including temperature load effect and differential constrains at the truss end , relative stiffness change between the transfer story with its upper frame structure , and relative stiffness change between transfer story and its lower frame structure , is studied
  首先，对钢桁架转换层的受力影响因素进行了研究。主要进行了温度作用与钢桁架端部支承约束方式对钢桁架受力影响的研究，转换层与上部结构相对刚度变化对钢桁架受力影响的研究，以及转换层与下部结构相对刚度变化对钢桁架受力影响的研究。
• The experimental study on the seismic behavior of six 1 / 3 scale and shear - span ratio 2 . 2 high - rise shear walls , including a high - rise shear wall with steel frame , a high - rise shear wall with steel truss , a high - rise shear wall with steel frame - steel truss , a high - rise shear wall with steel bar truss , a high - rise shear wall with steel - steel bar truss and a usual one , has been studied
  6个试件包括1个普通混凝土高剪力墙、 1个内藏钢筋桁架混凝土高剪力墙、 1个内藏钢框架混凝土高剪力墙、 1个内藏钢框架-钢筋桁架高剪力墙、 1个内藏钢桁架混凝土高剪力墙及1个内藏钢-钢筋组合桁架混凝土高剪力墙。
• In this paper , high - rise shear wall with concealed truss has been brought forw - ard , this new composite concealed shear wall includes two kinds of compositions that are the composition of truss and shear wall and the composition of steel and concrete , which forms a double composite shear wall
  本文提出了一种新型内藏钢桁架混凝土组合剪力墙,该新型组合剪力墙包含两种组合,即不同受力体系桁架与剪力墙的组合、不同材料型钢与混凝土的组合,形成了双重组合剪力墙。
• Based on a shaking table experiment of steel reinforced concrete frame - shearwall structure model with steel truss transfer stories and finite element analysis , its seismic performance is studies deeply . in order to evaluate the structural seismic performance , three approaches , shaking table experiment for simulating earthquake , time - history analysis method and static elastic - plastic analysis method , are used in this project
  本文的主要工作是研究和评估带高位大跨度钢桁架转换层型钢混凝土框架?剪力墙结构的抗震性能，为此，采用了三种方法：模拟地震振动台试验方法；弹性时程分析方法；弹塑性静力( push - over )分析方法，展开了对课题的研究。
• In staged construction process , study is primarily aimed at the truss load resistance capacity and flexural performance under construction and design load , combination performances of steel trusses in conjunction with concrete beam , the vertical displacement difference of two steel trusses with different span and their lateral stability , the glide displacement of the steel truss end during construction , the load resistance performance of steel trusses and concrete structure at the designed load , and the extreme limit loads and the breaking appearance of the combined steel trusses
  主要研究了在阶段施工过程中，钢桁架在施工荷载及设计荷载下的受力性能和变形能力；钢桁架与混凝土梁板的共同工作性能；两榀不等跨钢桁架在整体受力下的竖向位移差及其对结构的作用和侧向稳定性；钢桁架端部在施工阶段的滑动情况；使用阶段钢桁架及其端部混凝土结构的受力性能；组合钢桁架结构的极限承载力和破坏形态。