20 src eccentric loading specimens were designed taking the relative eccentricity e0 / h the slendemess ratio 10 / h as the factors . according to the mechanical behavior of eccentric loading columns , unidirectional embedded electronic steel - concrete slip transfers and double - directional embedded electronic steel - concrete slip transfers were respectively placed inside these 20 specimens and electronic strain gauges were also installed on the steel shape flanges webs and concrete . the change of the mechanical behavior and interior slip of the 20 specimens in the whole process of loading was fully observed 设计了以长细比、偏心距为主要参数的20个偏压柱试件，根据偏压柱的受力特性，在试件中分别放置了单向内置式钢?混凝土电子滑移传感器和双向内置式钢?混凝土电子滑移传感器，并分别在型钢翼缘、腹板和混凝土上布置了电子应变片，对试验柱在受荷全过程的受力性能、和内部滑移的变化进行了细致的观察。
The response of multi - storey regularly asymmetric building excited by two directions earthquake is researched . and the torsional coupling response influenced by the strength eccentricity is discussed . the response of the rc frame excited by two directions earthquake is simulated using fiber models 4 、对双向水平地震作用下均匀偏心结构的非弹性扭转耦联反应进行了分析，考重庆大学博士学位论文察了强度偏心距对结构非弹性扭转祸联反应的影响程度，并采用纤维模型梁柱单元模拟分析了不规则钢筋混凝土框架结构在双向水平地震作用下的反应过程。
By tests of 9 specimens subjected to biaxial eccentric compression , shear and reversed torque , the failure modes and the varying laws of cracking torque , original stiffness , ultimate torsion strength and ductility are discussed , with the change of axial stress level and relative eccentricity . then , the cracking bearing capacity , the ultimate capacity and the deformability of the specimens are obtained 通过9根承受双向偏压、弯、剪构件在反复扭矩作用下的试验研究，以轴压比和相对偏心距为主要研究参数，揭示钢筋混凝土构件中双向偏压剪反复扭矩作用下的破坏特征、开裂扭矩、刚度、强度、延性等特性和耗能性能，从而确定其开裂承载能力和极限承载能力及变形性能。
By the summarizes and the whole analysis with the experimental results of the 20 specimens , the slip - distributions on tensile and compressive side of steel shape flange were obtained and the influence of the factors such as relative eccentricity e0 / h the slendemess ratio 10 / h on the bond - slip properties was further studied 根据20个偏压柱滑移的测试结果，进行综合分析和归纳，基本得到了型钢拉、压侧翼缘滑移的分布规律，并进一步以偏压柱长细比、偏心距为主要参数，分析了其对粘结滑移性能的影响。
In order to implement the proposed numerical procedure , a two - module computer program is developed with the computational module in visual fortran code and the data - input module in visual basic code . using the numerical procedure , two groups of slender composite columns of rectangular cross section are first analyzed . the obtained results are compared with the corresponding test results and good agreement is found 应用编制的计算程序首先对两组矩形截面组合长柱的试件进行了实例计算，并与试验结果作了比较，验证了计算方法和程序的正确性和有效性；同时就柱子长细比、荷载偏心距对长柱极限承载力的影响进行了较详细的数值分析和讨论。
Also the failure modes and the cracking torque , original stiffness , ultimate torsion strength and ductility are discussed in this case . the factors affected torsion bearing capacity of high - strength concrete frame column is analyzed too . the seismic performances of normal - strength and high - strength concrete frame column subjected to biaxial eccentric compression , shear and reversed torque are studied 以轴压比和相对偏心距为主要研究参数，揭示高强钢筋混凝土构件在单向、双向偏压剪单调、反复扭矩作用下的破坏特征、开裂扭矩、刚度、强度、延性等特性，分析了影响高强混凝土框架柱抗扭承载力的因素。
The analysis on unilateral , bilateral and lateral - torsional coupled seismic response of base - isolated structures with lead rubber bearings is carried out . the maximal displacement of the bearings is studied . the influence on lateral - torsional coupled seismic response of base - isolated structures due to the excentricity and uncoupled period ratio of the superstructure , and the excentricity of the isolation system is investigated 对铅芯叠层橡胶支座基础隔震结构进行了单向及双向地震反应对比分析，并研究了支座最大位移的确定；对结构进行了平?扭耦联地震反应分析，研究上部结构的偏心距及非耦联周期比、隔震层偏心距等因素对结构的平?扭耦联地震反应的影响，并对结构平?扭耦联地震反应的控制进行了探讨。
Referring to three kinds of plan irregularity , structures individually with four kinds of irregularity as eccentricity in one direction , eccentricities in two directions , re - entrant corner irregularity and diaphragm discontinuity have been analyzed to investigate the relationship between torsion effects and parameters of above irregular structures . the parameters and the schemes for determining the scope of structures with different kind of irregularity considering seismic action in two directions simultaneously are proposed , some conclusions have been get as following : it is indicated by the analysis results that torsion effect has no dependency relation with eccentric torsional angel adopted in code for seismic design for buildings . it is suggested that the eccentric torsional angel should not be take as the parameter of torsion effect of structures considering seismic action in two directions simultaneously ; for the structures with regular plan and elevation and with eccentricity in one direction due to irregular mass layout , the relative eccentricity can be take as the parameter of torsion effect of structures considering seismic action in two directions simultaneously ; for the structures with regular plan and elevation and with eccentricities in two directions due to irregular mass layout , the ratio of relative eccentricities in two directions and the angel of them can be take as the parameters of torsion effect of structures considering seismic action in two directions simultaneously ; it is indicated by the analysis results that the torsion effect has no dependency relation with re - entrant corner ratio adopted in code for seismic design for buildings as 所取得的主要结论有：结构的扭转效应与《抗震规范》所采用的扭转不规则指标即偏心扭转角之间的相关性较差，偏心扭转角不宜作为判断结构是否计及扭转效应及需考虑双向水平地震作用的界定指标；对于楼层间均匀偏心的多层单向偏心结构，建议采用相对偏心距作为需考虑双向水平地震作用的界定指标，并给出针对不同平面尺寸的界限相对偏心距；对于楼层间均匀偏心的多层双向偏心结构，建议采用两个主轴方向的相对偏心距及其夹角作为界定指标，结合单向偏心结构的界定方案进行需考虑双向水平地震作用的结构范围界定；凸凹不规则结构的扭转效应与凸凹比例无正相关关系， 《抗震规范》要求所有平面布置不对称的凸凹不规则结构计及扭转效应的规定欠妥当，建议凸凹不规则界限值从30改为15 ，只要求分析采用空间模型比较合适； 《抗震规范》关于有效楼板宽度较小的结构需计及扭转效应的规定很有必要，楼板局部不连续的结构需采用符合楼板实际刚度的计算模型予以分析，可使用相对偏心距（及其夹角）参照单向（和双向）偏心结构的界定方案，界定楼板局部不连续结构是否需要计入双向水平地震作用下的扭转效应。
Abstract : in view of the application of calculation formulae on clamping force of circular eccentric , this paper presents classification by self - locking degree and corresponding calculation of clamping force . on the basis of analyzing an comparing a - type and b - type eccentrics , it is concluded that the former has an advantage over the latter . and then the reasonableness of the standard eccentricity and tolerances is discussed and some revisions are suggested . this offers a dependable theoretical foundaation for design and application of the device 文摘:针对圆偏心夹紧机构夹紧力计算公式的应用问题，提出了按圆偏心自锁程度不同的分类方式及其相应的夹紧力计算方法；分析比较了a 、 b两类偏心的夹紧特性，得出了前者优于后者的正确结论；讨论了标准偏心轮的偏心距及其公差取值的合理性问题，并提出了相应的修改建议，为正确设计和应用该机构提供了可靠的理论依据。
