1) occasional and rear earthquake
大震弹塑性时程
2) elastic-plastic seismic time-history analysis
弹塑性地震时程分析
4) elastic-plastic time-history analysis
弹塑性时程分析
1.
The elastic-plastic time-history analysis of a frame shear-wall structure
框—剪结构的弹塑性时程分析
2.
A new calculation model for the elastic-plastic time-history analysis of plane steel structures was presented by replacing the general bar element with a new one,which had two rotational springs at its ends.
用两端带转动弹簧的杆单元代替一般的杆单元,提出了一种新的平面杆系钢结构动力弹塑性时程分析计算模型。
3.
The elastic-plastic dynamic analysis program Drain-2d+ of the plane structure is used to get elastic-plastic time-history analysis for each typical mega frame under the action of seism.
采用平面结构弹塑性动力分析程序Drain-2d+对每个典型巨型框架在地震作用下进行弹塑性时程分析,得出了这些巨型框架在地震作用时的受力变形特点、塑性铰出现情况和整个结构的薄弱环节等,从中找出位于巨梁上的次框架底层柱底截面弯矩设计值增强系数取值的正确思路,并给出设计的合理取值,为钢筋混凝土巨型结构设计提出一些建议。
5) nonlinear time history analysis
弹塑性时程分析
1.
The seismic behavior of the building was evaluated on the basis of the nonlinear time history analysis under rare earthquake.
采用弹塑性时程分析程序CANNY对采用框架-非连续抗震墙结构的板式底商住宅进行了罕遇地震作用下的抗震性能分析。
2.
The nonlinear time history analysis is made on the seismic performance during rare earthquake for an aqueduct which is one of the typical aqueducts to cross the main trunk canal of the Mid-nroute of the South-to-North Water Transfer Project in China.
通过弹塑性时程分析,对南水北调中线工程中的典型渡槽结构在罕遇地震作用下的抗震性能进行了研究。
6) elastic-plastic time history analysis
弹塑性时程分析
1.
Discussion on the structural vibration model and rigid matrix of elastic-plastic time history analysis
弹塑性时程分析中结构的振动模型及刚度矩阵
2.
The nonlinear finite element model is stimulated by the combination of the shell element and beam element to make elastic-plastic time history analysis on the K-eccentrically braced steel frames.
采用梁单元与壳单元相结合的非线性有限元模型,对K型偏心支撑钢框架进行弹塑性时程分析,研究耗能梁段的长度、腹板高厚比和加劲肋间距的变化对K型偏心支撑钢框架结构抗震性能的影响,提出了相应的抗震设计建议。
3.
Through the finite element model combing both the shell element and beam element,the paper makes an elastic-plastic time history analysis of the seismic behavior of the Y-eccentrically braced steel frame to study how the change of parameters such as length of link beam and height-thickness ratio of web influences the properties of structural seismic-resistance.
采用梁单元与壳单元相结合的非线性有限元分析模型,对Y型偏心支撑钢框架进行弹塑性时程分析,研究耗能梁段的长度和腹板高厚比的变化对结构抗震性能的影响,提出了相应的抗震设计建议。
补充资料：弹—塑性变分原理
弹—塑性变分原理
elastic-plastic variational principle
tan一suxing bionfen yuanll弹一塑性变分原理(elastie一plastic variation-al Principle)适于弹一塑性材料的能量泛函的极值理论。包括最小势能原理和最小余能原理。塑性加工力学中常用最小势能原理。变形力学问题的能量解法和有限元解法都基于最小势能原理。最小势能原理有全量理论最小势能原理和增量理论最小势能原理。 全量理论最小势能原理在极值路径(应变比能取极值的路径)下运动许可的位移场u‘中，真实的位移和应变使所对应的总势能取最小，即总势能泛涵巾取最小值，其表达式为”一0，’一万〔A(一，一关一〕dV一好多!一‘“ (l)式中“:为位移;户:为外力已知面上的单位表面力;关为体力;A(气)为应变比能。 A(勒)随材料的模型而异。对应变硬化材料(图a)， E严_‘_‘_ A(乓r)一二丁二一气助+{刃(r)dr(2) 6(1一2刃~一“‘J一、-一、- 0式中E，，分别为弹性模量和泊松比;艺一硫瓜，r一掩不万，，，f，一，一音。魔。，，一，一，一音。*。!，;。f，为克罗内克(L.Kroneeker)记号，i=夕时a，一l，i笋少时民，一。，把式(2)代入式(1)便得到卡恰诺夫(几·M·Ka、aHoe)原理x的表达式。i厂:八 I’—几 I’一 ab 乞一乏(r)关系图 a一应变硬化材料;占~理想塑性材料 对于理想塑性材料(图b)， 艺~ZGr(r
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