矢跨比

这些设计参数包括矢跨比、拱轴系数、拱上结构的布置和箱形拱圈截面尺寸。

The parameter contain rise-span ratio , quotiety of arch axis , arrangement of arch superstructure and size of box arch ring section .

得出了混凝土自锚式悬索桥最佳的矢跨比在1／7左右。证实了目前正在施工的设计方案是可选的。

It is drawn that the most optimized rise-span ratio is about 1 / 7 . It is proved that the design scheme in construction is feasible .

通过CFD数值模拟技术，探讨了不同矢跨比球壳表面风压分布特性。

The characteristics of pressure distributions of spherical shells with different rise-span ratio are also discussed by Computational Fluid Dynamic ( CFD ) numerical simulations techniques .

首次将遗传算法（GA）引入双层圆柱面网壳结构的优化设计中，实现了对网格尺寸、结构厚度、矢跨比的同步优化。

We firstly proposed that genetic algorithm could be used in the optimization design of double layer cylindrical latticed shell , which realized the synchronous optimization of the rise / span ratio , grid size and the vault thickness .

根据大量算例的计算结果，分析了在竖向阶跃荷载作用下，跨度为40～70m、矢跨比为1/8～1/5的单层球面网壳的初始缺陷和初始静位移对其动力稳定性的影响。

Based on the comprehensive numerical analysis of single layer reticulated domes subjected to vertical step load , the effects of initial imperfection and initial static displacement on dynamic stability behavior are presented .

分别对其中最常用的斜拉杆式桁架拱桥和斜腿刚架桥进行了跨径为20m、30m、40m和50m时的矢跨比和分跨比参数分析。

Moreover , parameter analysis of rise-to-span ratio of truss arch bridge with oblique tension link and span ratio of slant legged rigid frame bridge are carried out in four kinds of span which are 20m , 30m , 40m and 50m .

第三个体育馆平面尺寸为157m×127m的矩形，通过考虑用钢量指标、施工方法、矢跨比、节点形式等因素，文中给出了四种结构方案，并逐一评述。

The length and width of the third gymnasium were 157m and 127m respectively . Four design projects were summarized out through considering steel weight , construction , rise-to-span ratio , joint form , and so on .

分别对168例K8和K6型单层球面网壳结构进行了计算，分析了跨度和矢跨比、屋面荷载、支承条件等因素对单层球面网壳结构自振特性的影响，并绘出了基频实用设计图表。

Calculated eighty four K8 and eighty four K6 pattern single-layer reticulated domes respectively , analyzed the dynamic characteristics in terms of span and height to span 、 load 、 the condition of the support and so on , and draws the first frequency practicality designing chart .

高矢跨比椭圆抛物面弦支穹顶风振系数研究

Wind-induced vibration coefficient for elliptic paraboloid suspension-dome of large rise-span ratio

小矢跨比拱桥的模型试验研究与分析

Research and Analysis on Model Experiment of Flat Arch Bridge

大矢跨比局部双层球面网壳的形式及稳定性分析

Formations and stability analyses of partial double-layer reticulated domes with high rise-to-span ratios

大矢跨比连续拱桥-桂林解放桥施工技术

Construction Techniques for Jiefang Bridge in Guilin-A High Rise-to-Span Ratio Continuous Arch Bridge

大矢跨比抛物线拱精确分析

Precise Analysis of Two Hinged Parabolic Arches of Large Rise to Span Ratio

脊椎动物肋骨矢跨比的研究

Research on height - span ratio for vertebrate ribs

矢跨比和垂跨比对张弦立体桁架性能的影响分析

Influences of rise-to-span ratio and sag-to-span ratio on the prestressed spatial truss string structure

浅埋暗挖小矢跨比地下过街道的设计与施工

Design and construction of tunnelled underpass with shallow overburden and small rise span ratio

给定索矢跨比的张拉式膜结构协同形态分析

Coordinated form-finding analysis of tensioned membrane structures of given cables ' ratio of rise to span

文中以五边形曲面薄膜结构为例，研究不同的矢跨比、膜材的弹性模量对结构变形和受力的影响。

This article mainly discussed the mechanical performance of membrane structure with different structural and mechanical parameters .

此外，在矢跨比为7/30左右时，该结构有最佳的稳定性能。

Moreover , the structure has best stability performance when the rise-to-span ratio is nearly 7 / 30 .

一种小矢跨比平面曲杆的近似分析方法

An approximate analysis method for arc member with low ratio of arc 's height to length of chord

分析的参数有矢跨比、长细比、含钢率以及加载方式。

The parameters used in the analyses include rise to span ratio , slenderness ratio , steel ratio and load conditions .

系统分析了索膜结构自振特性与预应力、矢跨比、索初始应力等的关系。

The relationship between frequency and prestress , ratio of rise to span of tensioned cable and membrane structure are also studied .

随着猫道矢跨比的增大，承重绳索力减小，猫道在人行荷载作用下产生的加速度响应增大。

With the increasing of the ratio of rise to span , tension of bearing cable reduce and pedestrian-induced acceleration response increase .

研究表明，初始缺陷对结构动力稳定临界荷载有影响，并且初始缺陷对不同矢跨比的结构影响不同。

The results show that the dynamic instability critical load of the imperfection structure is different from that of a perfection structure .

布索方式、下部结构的对称性以及网壳的矢跨比是影响结构索力损失的主要因素。

Cable layout , asymmetry of substructure and the rise-span ratio of upper dome are important influence factors to the loss of cable force .

而对于平均风荷载全为吸力的小矢跨比穹顶结构，脉动风作用下基本模态位于高阶。

As for low rise dome-like roofs , on which the mean wind load is suction , the fundamental mode locates on the high order .

采用索元、梁元、杆元混合非线性有限元法，探讨了10种布索工况以及不同矢跨比下结构的几何非线性稳定性。

The nonlinear finite element method was used to analyze the stability of the structure with ten sorts of cable arrangements and different rise-to-span ratio .

以两种矢跨比弦支穹顶为例，得出不同矢跨比弦支穹顶的缺陷敏感性规律。

In this paper , taking two different rise-to-span ratio suspen-dome structures as examples , imperfection sensitivity of different rise-to-span ratio suspen-dome structures was obtained .

选取了几种几何尺寸不同的单层柱面网壳，分析了矢跨比和长跨比对单层柱面网壳动力稳定性能的影响。

With considering various geometric sizes of single-layer cylindrical reticulated shells , the effects of rise-to-span and length-to-span to the structural dynamic stability are also analyzed .

大连市泉水居住区四号路跨东北路桥主桥是跨度为88米，矢跨比1／12的箱形截面预应力钢筋混凝土双铰坦拱。

The main bridge of Dalian Quanshui No.4 Bridge is a box-section prestressed steel concrete two-hinged flat arch bridge with88m span and1 / 12 rise-to-span ratio .