| 1. | The beam has an i - shaped cross - section
梁具有i形断面。 |
| 2. | Finite element analysis of combined i - shaped beams under eccentric load
组合工字型梁在偏心荷载作用下的有限元分析 |
| 3. | The stress contribution in the cross - section is uniformity , and i - shaped steel in web space can result in reduction of stresses , when the concrete was filled into the new dumbbell
进行了14根钢管混凝土哑铃形试件的偏压试验，其中腹腔内不填充混凝土的构件6根和腹腔内填充混凝土的试件8根。 |
| 4. | Following the linear analysis , a new nonlinear theory for curved members with i - shaped sections is presented according to the theory of finite deformation , in which the effect of transverse stress is also incorporated
在线性分析的基础上，依据有限变形理论，建立了工字形曲梁涉及稳定问题的非线性理论，其中考虑了横向正应力的影响。 |
| 5. | The developed finite element program is then used to investigate the ultimate behaviors of horizontally curved beams with a specified i - shaped cross - section . these curved members are assumed to be simple - supported and subjected to a conce
利用上面编制的非线性有限元程序，针对一特定截面的工字形水平曲梁，研究其在跨中集中荷载作用下的弹塑性工作特性。 |
| 6. | Simplified theories are also presented for curved beams with commonly used sections , such as i - shape , channel and h section without any symmetrical axis . linear analysis is also performed in combination with finite element method
其后就常见的截面形式(单轴对称工字形、槽形和无对称轴的形截面) ，对所提出的曲梁理论进行简化，并结合有限元方法求解曲梁的线性问题。 |
| 7. | They can be found in circular cast houses of blast furnace , in oil - sealed dry gasholders and in workshops with curved cranes . cross sections of these curved members are of various types , such as il - shaped , i - shaped , channel , box and h section without any symmetrical axis
曲线梁在工业和民用建筑中也常有应用，在高炉环形出铁场、干式煤气柜内部结构以及某些有工艺要求的厂房内，常需采用不同截面形式的环形曲梁。 |
| 8. | Based on the investigation of research and application of concrete - filled tubular column to steel beam connections in china and abroad , according to engineering practice , six full - size specimens that the joints composed by concrete - filled square tubular column and i - shape steel beam divided as a and b groups have been tested under cyclic - loading in this paper . the three specimens of group a are connected by bolt - weld and the group b connected by welded at the end of beams
本文在总结分析了国内外关于钢管混凝土框架节点研究与应用现状的基础上，以实际工程为背景，在国内首次进行了a 、 b两组共6个足尺节点试件的低周反复循环加载试验，其中a组三个试件梁端采用栓-焊连接； b组三个试件梁端为全对接焊接。 |
| 9. | Aimed at the in - line inspection of small - diameter pipelines , the modules have been designed in i - shape . the distance wheel system is adopted the mouse principle by its simple and reliable characteristics , and the force - enhanced structure is added on arms so that the precision and reliability of the distance count are improved
针对小管道在役检测的特点，提出了将舱体设计为工字形，采用简单可靠的“鼠标工作原理”设计里程定位系统，并在支撑臂上采用增力机构，以提高里程计数的精确性和可靠性。 |
| 10. | It analyzes the dynamic response of many different damage cases of simple i - shape beam structure and discusses their influences to natural frequency and modal curvature . it is found that the natural frequency and modal curvature can be used in identifying the severity and location of structural damage respectively . dynamic response of some real beams are measured and compared to the results analyzed by computer , it is found that there are some differences between them and the main reason is the error caused by modeling
2 .针对土木结构中最为常见的梁式结构,对简支工字钢梁的多种不同损伤工况的动力特性进行了有限元仿真分析,研究了损伤对频率和模态曲率的影响,发现固有频率变化率和模态曲率的变化分别可以用于损伤程度和损伤位置的识别;在实验室中实测了几种工况的钢梁的振动模态,发现实测结果与计算结果有一定的差异,分析其原因主要是模型误差和噪声影响。 |
