1) elastic foundation beam model
弹性地基梁模型
1.
Taking Xidan station engineering on Line 4** of Beijing Subway as an example, the double-parameter elastic foundation beam models for the pipe-roof are put forward.
以北京地铁4~#线西单站工程为例,建立管棚受力的双参数弹性地基梁模型,推导出管棚的挠度及转角、弯矩微分方程,并进行求解,根据管棚两端支撑条件,分析了其变形和内力特征。
2) modified elastic foundation beam model
改进弹性地基梁模型
1.
In order to analyses the pile soil interaction adjacent to superficial surcharge, the paper proposes the modified elastic foundation beam model, derives its stiff matrix of finite beam method and encodes the program EFBMPP.
本文在分析堆载条件下邻近桩基与土体的相互作用时 ,提出了改进弹性地基梁模型 ,采用最小势能原理推导了改进弹性地基梁的有限杆系法平衡方程 ,并编制了相应的分析程序EFBMPP ,对影响桩基变位和弯矩的影响因素进行了计算分
3) beam spring foundation system
梁弹地基模型
4) elastic foundation beam
弹性地基梁
1.
The application of elastic foundation beam in the longitudinal design of shield tunnel;
弹性地基梁法在盾构隧道纵向设计中的应用
2.
Discussion on calculation methods for elastic foundation beam;
浅谈弹性地基梁的计算方法
3.
On the effect of inner force on elastic foundation beams with different elastic characteristics;
弹性地基梁的弹性特征对梁内力的影响
5) beam on elastic foundation
弹性地基梁
1.
Dynamic response of beam on elastic foundation caused by variable speed moving load;
变速移动荷载作用下弹性地基梁的动态反应
2.
Application of bar system FEM for beam on elastic foundation in supporting design for a deep and large foundation pit engineering;
弹性地基梁杆系有限元法在深大基坑工程支护设计中的应用
3.
In order to improve the analytical accuracy of the deformation and proper vibration of beam on elastic foundations, the “multi-resolution” concept of wavelet analysis was introduced into conventional Finite Element Method.
为了提高有限元法对弹性地基梁的变形和固有振动的分析精度,将小波分析的“多分辨”分析思想引入传统有限元法。
6) beams on elastic foundation
弹性地基梁
1.
The beams on elastic foundation were calculated by means of Laplace s integral transformation.
利用拉普拉斯变换方法来计算弹性地基梁,得到了有限长弹性地基梁的弯曲变形、剪力和弯矩的统一表达式。
2.
A special finite difference method is applied to analyse the beams on elastic foundation.
采用特殊处理的有限差分法求解弹性地基梁的挠曲方程,剪应力连续的区域用 Runge-Kutta 差分法离散,不连续的奇异点根据内力平衡条件建立传递矩阵。
3.
In this paper, According to the infection line method, the maximal values (sefflement, shear and moment) of the tunnel are calculated by using the theory of beams on elastic foundation.
本文根据弹性地基梁原理 ,采用计算各截面的影响线方法 ,按最不利情况加载 ,得到了最大的反应值 (沉陷、剪力和弯矩 )。
补充资料:弹性地基梁法
弹性地基梁法
method of beam on elastic subgrade
tanxing dili Iiangfa弹性地基梁法(method of beam on elas-:ic subgrade)垂直水流方向将水闸底板截取为单宽截条并作为弹性地基上的梁进行内力计算的方法。其内力计算简图与截面法基本相同,但横向地基反力不再假定为均匀分布,而是根据地基与梁的弹性变形一致的原则进行具体的计算〔见图)。此外,弹性地基梁法还计及边荷载对地基变形的影响。因此,本方法较之倒,梁法、截面法合理,常用于大、中型水一夕一~浮托力渗透压力地基反力 ┌───┬─┬──┐ │闸墩 │1 │1 │ │ 刁 │! │l__ │ ├───┼─┼──┤ │1拿 │n │li │ └───┴─┴──┘ ┌─────┬─┬─┬───┐ │闸墩 │ │ │扮 │ │ 口 │ │ │ │ ├─────┼─┴─┼───┤ │侣一 │〔 │r,了 │ └─────┴───┴───┘ ┌───────────┬──┬────┐ │‘..~-.-.~二二~-.曰.. │T │丫 │ │ 闸墩 │! │/ │ │ 截条一 │L │ │ │ │/ │ │ └───────────┴──┴────┘ ┌──┬─┬─┐ │即 │尸│田│ └──┴─┴─┘ ┌─┬─────────┬────┬───┐ │{ │{ │灌几 │·!) │ └─┴─────────┴────┴───┘ 闸底板荷载分布闸底板的设计。具体计算方法见弹性地基上梁的计算,但由于地基的性能参数不易准确选择,什算结果也难以完全符合实际。对于复杂地基可按弹性地基上的框架决行平面或空间有限元法计算。
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参考词条