Steel braces can enhance the lateral stiffness and aseismic shear capacity of the structure , then reduces the story drifts and total deflection of the structure and meet the requirements of aseismic design code . but whether all the structural members that designed not accord to the seismic design code should be retrofitted 钢支撑增强了整体结构的抗侧刚度和抗剪强度，从而减少了结构的层间位移和总体位移，使之满足《规范》的相应要求；但结构中未按《规范》要求进行抗震设计的构件是否仍需加固
3 ) based upon analyzing the variation laws of bridge ’ s dynamic features , it is proposed in this paper that structure frequency and mode of vibration should not be used as the “ dynamic index ” of cable force dynamic evaluation , because the variation of structure frequency and mode of vibration resulting from tie bars ’ loss is very small 3 )在分析系杆截面损失时桥梁整体结构的动力特性变化规律的基础上,指出系杆损失引起的整体结构频率及振型的变化很小,不宜作为索力动态评估的“动力指纹” 。
From above analysis , the thesis gets conclusions as following : ( 1 ) the frequencies of multi - tower building are so dense and the coupling in each mode is so evident that the cqc method instead of srss should be used to calculate the seismic action effect ; ( 2 ) torsion effects is distinct between the modes of asymmetry multi - tower structure and it is necessary to take translation - torsion coupling into account ; ( 3 ) the effect of the enlarged base rigid on the seismic properties is very big , the rigid ratio of the enlarged base to towers in asymmetry multi - tower structure should be designed in a proper range ; ( 4 ) the distribution of plane rigid is asymmetry because of the asymmetry layout of towers . the torsion effects of structure not only result in large torsion internal force in vertical element resisting lateral displacement , but also make large influences on the stress of transfer plate and near floors , thus it is necessary to strengthen those floors 通过上述分析，得出以下主要结论：多塔楼结构存在频率密集现象，各振型间耦联效应明显，地震作用计算应采用cqc组合原则而不能简单地采用srss组合原则；非对称多塔结构的振型中，扭转作用明显，平扭耦联效应值得考虑；裙楼刚度对整体结构的抗震性能影响很大，非对称多塔结构宜控制裙楼与塔楼刚度比在适宜的范围；非对称多塔易导致平面刚度分布不均匀，结构扭转效应不仅在竖向抗侧构件中引起较大的扭转内力，对转换层楼板应力有较大的影响，且延续至相邻楼层，对相应楼层均应采取相应的加强措施。
This paper describes the behavior of ground pressure in gaofeng mining district , presents the causes of ground pressure activities appearing and the evaluation criteria of ground staility , evaluates the global structure stability of no . 100 orebody of gaofeng mine , finally discusses the possibility of recovering the residual ore of the orebody 摘要叙述高峰矿区的地压显现特点，地压活动产生的根源以及岩体稳定性评判标准，评价了高峰矿区100号矿体整体结构的稳定性，探讨100号矿体残矿量回收的可能性。
The rule of the axial force distribution in the src column summarized , and a reasonable formula for the axial force level ’ s calculation in src column is offered for the design . besides , the aseismic analysis methods for the src structures are listed , and the dynamic time history analysis and static push - over analysis for the whole structure are done . the character of the earthquake response in this kind of structure is analyzed and some advice for actual design is proposed 同时分析了src柱中的轴力分配规律,给出了比较合理的src柱轴压比计算公式;另外综合叙述了适用于src结构抗震分析的方法,并且运用常用的设计计算软件对整体结构进行弹性的动力分析和静力弹塑性分析,得出src柱对结构的整体抗震性能有提高,可以在保证竖向承载力的同时增大整体结构的抗侧能力,为以后的实际设计提供一定的依据。
At last , take a three - storeyed and two - span reinforced concrete frame as example , its damage value under cyclic load at different time is computed by the program . and the damage evolution curve of different element and whole structure is also obtained . as result the damage evolution law of reinforced concrete structure under cyclic load is found , which provides basis for the study of collapsing mechanism of reinforced structure under seismic force 最后，以一个三层两跨的钢筋混凝土框架为例，应用作者自编的程序计算了循环荷载作用下该框架结构在不同时刻的损伤值，并给出了其不同构件及整体结构的损伤演化曲线，揭示了循环荷载作用下钢筋混凝土框架结构的损伤演化规律，为地震力作用下钢筋混凝土结构的倒塌机制问题的研究提供了依据。
To promote the quality of hospital service , not only proper introduction of macro - policy and optimization of whole structure , but also quality management involved in all kinds of healthcare activities are needed so as to discover problems promptly and to eliminate mistakes and waste 医院提高医疗服务质量，不仅要有宏观政策的正确引导，整体结构的优化，而且质量管理应尽可能深入到医疗活动的各个环节，以便及时发现问题，消除错误及浪费，达到医疗服务质量的持续改进。
Because the computer monitoring system for plcs plays a central role in the whole smg - iii intelligent control system , in this chapter , we show how to define the system modules based on analysis of smg - iii intelligent control system and the practical condition of shanghai minhang sports park . based on the partition of system modules , chap Plc上位机监控系统是整个“ smg -智能控制系统”的中枢神经，在该章中作者通过对“ smg -智能控制系统” 、工程目标以及系统整体结构的分析，结合上海闵行环城体育公园的实际情况，有针对性地提出了plc上位机监控系统的模块划分。
The steady of grottoes attacked by earthquake is analyzed with the engineering soft named adina , in order to show where the weak parts of grottoes are and time - history curves of the horizontal displacement of the easily damaged nodes and time - history curves of first and third principal stress of the easily damaged elements ( 3 )以大型adina有限元分析软件为基础,编制了预应力锚索材料的非线性有限元计算程序模块,研究石窟在地震作用下的稳定性问题。选取能代表石窟整体结构的三个不同剖面作为有限元计算模型,并采用不同工程特性的地震动加速度时程作为荷载输入。
The newly arisen homogenization theories of masonry , derived from composite material mechanics , bases on the characteristics of masonry ' s constituent phases and the analysis of their blend effect , so that the mechanics characters of the masonry representative volume element ( rve ) can be obtained . then the rve is applied in complete structures to describe the structures mechanics characters 新发展起来的砌体均质化理论，源于复合材料力学，它以砌体各组成相（材料）的力学性能为基础，以分析它们之间的混合效应为主，得到砌体代表性体积单元rve （ representativevolumeelement ）的各种力学特征，再将代表性单元应用到整体结构中，来表达整体结构的力学性能。
