1) eccentric sectional model
偏心节段模型
2) sectional model
节段模型
1.
Taking a bay bridge with a main span 688 m as an example,this paper investigates the influence of railing curbstone structure on the flutter stability of box main girder through sectional model wind tunnel test.
以某一主跨688 m的海港大桥为例,通过节段模型风洞试验研究栏杆缘石构造对箱形主梁颤振稳定性的影响。
2.
The three-component of aerodynamic force of a 1∶60 scale sectional model was tested for the 75 test cases including bridge deck without vehicles,bridge deck with vehicles and construction stage.
进行了1∶60缩尺模型试验,开展了桥面无车状态、桥面有车状态和施工状态下的75个试验工况节段模型测力试验研究,并利用获得的三分力系数进行了全桥静风响应分析。
3.
Based on the Shanghai Bridge over Yangtse River, the vortex-excited resonance of a 1:60 scale sectional model was tested in a TJ-1 wind tunnel, without or with vehicles at the attack angle of 0(, +3( and -3(, respectively.
以上海长江大桥为背景,在同济大学土木工程防灾国家重点实验室TJ-1边界层风洞中进行了1∶60缩尺模型试验,开展了桥面无车状态、桥面有车状态下的两种断面形式以及0°、+3°和-3°三种风攻角共6个试验工况节段模型涡激共振试验研究,并将模型试验结果经过振型修正换算到实桥。
3) section model
节段模型
1.
Algorithm for free vibration identification of bridge deck section model system matrix;
桥梁节段模型系统矩阵自由振动识别的一种算法
2.
The wind tunnel tests for measuring the static wind forces on the bridge girder and the section model wind tunnel dynamic testing for Caiyuanba Yangtze River Bridge in Chongqing are introduced in this paper.
风致振动是大跨度中承式拱桥设计的主要控制因素之一,本文介绍了重庆菜园坝长江大桥风洞主桥节段模型静力三分力试验以及节段模型动态试验的主要内容及相应的结果,介绍了由于双拱干扰下的主拱静力三分力试验和涡振试验及其结论。
3.
The section model wind tunnel tests and test results are described, and the wind-resistant behavior of the bridge is evaluated based on the tests.
对杭州湾大桥北航道斜拉桥成桥状态、施工状态进行了动力特性分析,介绍了节段模型风洞试验的主要内容、试验结果,据此分析评估了该桥的抗风性能。
4) segmental model
节段模型
1.
Wind tunnel test of segmental models of half-through truss arch bridges;
中承式桁架拱桥节段模型风洞试验研究
5) eccentric-disk model
偏心盘模型
补充资料：在AutoCAD中偏心圆锥与偏心圆台实体的画法
现在要画一个偏心圆锥,底面在WCS的XY平面上,圆心(0,0,0),半径100,顶点(300,0,400)在ZX平面上.
1)连接PA,PB. A(-100,0,0) B(100,0,0)
图1
在当前坐标下:
2)延长PA到C,使PA=CA;延长PB到D,使PB=DB;
3)连接CD;
4)以CD为直径画圆;
5)用XLINE命令中的二等分选项作角CPD的角平分线PO,交CD于O;
6)过O作CD的垂线,交圆于E,F;
图2
7)用三点UCS命令,取三点为:O,P,C;
8)过点O作PO的垂线GO,交PC于G;
图3
9)再次用三点UCS命令,取三点为O,F,G;
10)现在就可以画椭圆锥了!
cone-e-c-捕捉O点-捕捉F点-捕捉G点-a-捕捉P点;
图4
11)回到WCS,剖切椭圆锥
SL-选择椭圆锥-回车-XY-回车-捕捉P点.
12)删除辅助线条.
图5
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条