To acquire a perceptual knowledge of this kind of beam - to - column connection , for the first time , cyclic - loading test of four such specimens were carried out , particular attention was paid to the splicing joints 为了获得对带悬臂梁段拼接的梁柱连接抗震性能的感性认识，本文首次对这种连接进行了四个试件的循环加载试验，试验侧重于对拼接节点的研究。
After choosing two bridges with pressure on signal board and making the research on it . it is clearly . seen that it is resulted from the both comparing actual data with these of design , we can find the difference between them 选出存在单板受力病害的两座典型桥涵，进行加载试验，得出该桥涵的挠度，对比实际挠度和设计要求挠度的差别，分析病害的程度。
Through testing eight composite beams with partial shear connectors under dead load and repeated load , the effect that repeated load acts on composite beams is analyzed on the basis of the test process , phenomena , and result 摘要通过8根部分剪力连接组合梁的静载和重复加载试验，在对试验过程、试验现象以及试验结果分析的基础上研究了重复加载对部分剪力连接组合梁受力性能的影响。
Secondly , the basic principle of the model test is discussed . a pullout loading test equipment is designed , and then , a great deal of tests and data - gathering apparatuses are introduced , including the examination approaches and processes 2 、分析真型试验的试验原理，并设计出一套轴向抗拔加载试验装置，详细介绍了各种试验和数据采集仪器，以及基础进行真型抗拔试验的试验方法及步骤。
Problems appearing at work and tackling methods are both presented . recently , the research result has been applied to the helicopter airscrew harmony loading test . the results of harmony loading test show that it has high performance 目前，论文的研究成果已经成功地应用在某型直升机旋翼载荷模拟加载试验系统中，实际加载试验表明，该加载控制系统能很好的完成加载试验控制，保证系统的控制性能指标。
In this paper , the mechanics behavior of the src column and steel beam joints is studied . the tests of the src column and steel beam joints under the cyclic reversed loading are carried out , which are analyzed by the ansys 3d nonlinear finite element program 本文主要研究劲性柱?钢梁节点的受力性能，对劲性柱?钢梁节点进行低周反复加载试验研究，同时用ansys三维有限元非线性分析软件进行计算机模拟。
To a helicopter , one of the key technologies is how to control the airscrew . so it is very important to simulate aerodynamic loads acting on the helicopter ' s airscrew when the helicopter is flying in the air . it affords datum , which are contributed to the use of new flight vehicle 对于直升机来说，旋翼操纵控制是其关键技术之一，对旋翼进行地面加载试验，模拟旋翼在飞行过程中所受的气动载荷，对于研究和改进直升机飞行控制系统非常重要。
The main contents are followed below : ( 1 ) for the aim of knowing the characteristics of main factory building structure frame columns of large - scale thermal power plants , nine high strength concrete frame columns with high axial compression ratio and six slender ordinary strength concrete frame columns with high axial compression ratio were tested under low reversed cyclic horizontal loading for the very first time , and thus the influencing factors of normal section bearing capacity , such as concrete intensity grade , axial compressive ratio , slendemess ratio , the type of stirrups and stirrup ratio , etc , the anti seismic deformation capability of frame columns were acquired 本文主要研究的内容有： ( 1 )首次针对火电厂主厂房结构框架柱的特点，对9个高轴压比高强混凝土框架柱和6个高轴压比普通混凝土框架长柱进行了低周反复水平加载试验，获得混凝土等级、轴压比、长细比、配箍形式及配筋率等对框架柱的抗弯及抗剪承载力、抗震变形能力的影响因素。
Experiments results showed that height - width ratio is not a main influencing factor on wall shear behaviors . the wall shear strength by cyclic loading is lower 10 % than that of static loading . test results also showed that the ductility coefficients of walls is equal to 3 . 08 - 3 . 84 , consuming coefficient e is about 1 . 0 and shear strength of wall specimens is about 12kn to 14 kn 试验结果发现：墙体试件的高宽比不同对延性系数、耗能系数e 、抗剪系数等影响不大；相同尺寸、构造的墙体抗剪试件，进行往复加载试验时得到的抗剪强度比进行单调加载试验得到的结果低10左右；通过试验得到本次抗剪试验墙体的延性系数在3 . 08 3 . 84之间，耗能系数e在1 . 0左右，墙体试件的抗剪强度在12 14kn m之间。
By measuring pressure induced by dynamiting which located various positions of the circular shell , the localizational effect of impact force on the circular shell is disclosed . also , pvdf piezofilms are used to determine accurate time while projectile contacting target , accurate time while two interfaces of the target contacting at a initial distance of 5 , and the contacting pressure between the two interfaces when the projectile is in 500m / s to looom / s . experimental results , which are consonant with computer simulation , supply support to engineering 通过对化爆模拟加载试验中柱壳不同角度压力的监测，揭示了化爆模拟产生的压力局域化效应，为进一步模拟设计提出研究的方向；采用pvdf压电薄膜来监测弹靶碰撞的时刻、细小间隙的闭合时间以及由此产生的压力变化，通过对pvdf压力计测试结果分析以及和数值模拟结果的比较，获得规律性的认识，为进一步的应用提供了技术支持。
