The 3 - point bending teat was performed on material testing system ( mts ) to investigate the quasistatic and fatigue behavior of ultra - thick 3 - d orthogonal woven composites ( glass / unsaturated resin ) , which aimed to predict the fatigue property of this material 摘要在材料测试系统mts上，采用三点弯曲加载方式对超厚三维正交机织复合材料（玻璃纤维不饱和聚酯）分别进行静态及疲劳试验，对该材料的疲劳性能进行探索和预测。
Based on consulting a large number of documents , the paper firstly analyses and generalizes all aspects of the creep tests , including test equipments , test methods , test procedure , test influencing factors ; so as to complete the creep tests successfully 在查阅大量文献资料的基础上，先介绍了蠕变试验方面所涉及到的试验仪器、试验加载方式、试验破坏标准及试验步骤，同时分析了影响蠕变试验结果的因素，明确这些有助于顺利地开展蠕变试验。
The experiment procedure and analysis result about exteriorly extended end - plate connection with high strength bolt are introduced primarily ; each sample ' s dimension is given . the adding load equipment , measuring apparatus placed , measuring point established is detailed . adding load measure load and m - curve is produced ; the single span gabled frames horizontal displacement formula is deduced when the horizontal concentrated force is applied to it 重点介绍了外伸端板高强螺栓连接的实验过程及实验分析结果，介绍了各组试件的形状尺寸、加载装置、测量仪器安放、测点的布置等；给出加载方式及测出的m -曲线；计算出试验节点的初始刚度；推导水平集中力作用下单跨门式刚架考虑节点半刚性的侧移计算公式。
At first , this thesis analyzes the main causes in theory , which have effects on the redistribution of internal force and modulation of moment for the bonded post - tensioned partially prestressed concrete frame ( for short prestressed frame ) , including the relative height of compressive zone of section ( ) , secondary moment and types of load applying . then , this thesis analyzes the test of prestressed frame . then , a method , called curvature - force method , for nonlinear analysis of prestressed frame is put forward 本文首先从理论上分析了影响后张有粘结部分预应力混凝土框架（简称为预应力框架）内力重分布和弯矩调幅的主要因素，即相对受压区高度、次弯矩和加载方式等，并初步分析了两榀只加竖向荷载和两榀既加竖向荷载又加水平荷载的单层单跨预应力框架静力加载的试验。
Because the kinematically - admissble cyclic strain rate field required in kninematical - type theorem of shakedown analysis is rather difficult to be constructed , shakedown analysis based on kinematcal theorem cannot be directly applied . some conditions of kinematical - type shakedown theorem are released by ksnig and then the shakedown rules respectively for alternating plasticity and incremental collapse are obtained , for the numerical method based on the upper - bound theorem is formulated 两种方法的特点是：运用一种分级循环加载方式来寻找机动许可的塑性应变率场，利用这两种机动安定准则的特点来判断结构的安定性，从而得到机动安定性分析的安定载荷。
The specimens of rpc filled in steel tube short columns were studied , and their characters of deflection were analyzed . the tested cures of loading - displacement relationship of rpc filled in steel tube short columns were given and the characters were discussed . a formula for predicting the ultimate bearing capacity of rpc filled in steel tube short columns under axial compression was derived from the limit equilibrium method 分析了钢管活性粉末混凝土短柱的变形特点，模拟了钢管活性粉末混凝土结构的三种加载方式，探讨了该组合结构的工作机理，分析了试件受荷时的变形特点，给出了试件的实测荷载-变形曲线，并分析了套箍指标、加载方式等对钢管活性粉末混凝土轴心受压时的荷载-变形曲线的影响。
The effect of plastic deformation and elastic strain energy induced by pre - strain on the nucleation of martensitic transformation of low alloy ultra - strength steel sosimncrmov had been studied by pre - strain quenching in austenite state . the control over deformation magnitude and deformation temperate as well as loading pattern was performed to adjust the storage of elastic strain energy in steel before martensitic transformation , using the type of geeble - 1500 thermal analogue test machine 使用gleeble - 1500型热模拟机，对低合金超高强度钢30simncrmov实施奥氏体预应变淬火处理，通过控制形变量、形变温度和加载方式，调整钢中马氏体相变前的弹性应变能储备，研究了预应变所造成的塑性变形与弹性应变能对马氏体相变的影响。
At last , with the program , 18 one - storey and one - span prestressed frames are simulated . some conclusions are reached with the taking into account the , secondary moment and types of load applying : ( 1 ) the in the beam affects the ductility of the section and rotary property of the plastic hinge . so total coefficient of the modulation of moment becomes less with the becoming bigger 最后，本文利用编制的非线性程序，模拟了18榀单层单跨预应力框架，重点研究截面相对受压区高度、次弯矩、加载方式对塑性内力重分布和弯矩调幅的影响，从中得出了以下主要的结论和规律： ( 1 )框架梁相对受压区高度在很大程度上反映了截面的延性，体现了塑性铰的转动能力，框架的总弯矩调幅系数随着相对受压区高度的增大而减小。
After that , based on the datum of the dsp and the correlative chips , the paper designed the key circuit in the data processor module . the design of the interface modules of the control system is the following work . they were the interfaces connecting controller with digital , analog network , and the monitor computer respectively 接下来，设计了系统的整体结构；研究分析了嵌入式控制系统在进行数据处理时所采用的器件以及dsp和相关的芯片资料之后，确定使用tms320vc5402作为系统的数据处理器，设计了数据处理模块的部分关键电路和dsp的16位并口自举加载方式。
The integral seismic behaviors of other three kinds of connection , namely bfp , dst , and sep connections are better than that of normal wfp connection . by the way , finite - element ( fe ) analyses were conducted to predict the influence on cfst structure under different kinds of elements , mesh density , load manners and boundary conditions . after that , a special program was designed to define the constitutive relationship of concrete material in cfst structures based on apdl in ansys program 此外，本文探讨了不同的单元类型、不同的网格划分密度、加载方式与边界条件对钢管混凝土组合结构数值计算的影响，运用ansys中的apdl语言，编写了适合钢管混凝土结构分析的混凝土材料本构关系程序，并运用该程序结合ansys对常规栓焊节点与翼缘全螺栓连接节点的滞回性能进行了初步计算，为进一步地数值分析打下了基础。
