WO2003038189A1 - Procede de fabrication d'une poutre porteuse d'un chemin de fer a sustentation magnetique - Google Patents
Procede de fabrication d'une poutre porteuse d'un chemin de fer a sustentation magnetique Download PDFInfo
- Publication number
- WO2003038189A1 WO2003038189A1 PCT/CN2002/000462 CN0200462W WO03038189A1 WO 2003038189 A1 WO2003038189 A1 WO 2003038189A1 CN 0200462 W CN0200462 W CN 0200462W WO 03038189 A1 WO03038189 A1 WO 03038189A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- span
- beams
- continuous
- manufacturing
- simply supported
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 239000000725 suspension Substances 0.000 title abstract 2
- 238000000034 method Methods 0.000 claims abstract description 12
- 238000005339 levitation Methods 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000009417 prefabrication Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000011437 continuous method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000013332 literature search Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B25/00—Tracks for special kinds of railways
- E01B25/30—Tracks for magnetic suspension or levitation vehicles
- E01B25/305—Rails or supporting constructions
Definitions
- the present invention relates to a method for manufacturing a track beam, in particular to a method for manufacturing a track beam for a magnetic levitation and railroad railway, and belongs to the field of rails in the field of transportation.
- the system Since modern high-speed rail transportation systems such as magnetic levitation trains run at high speeds, the system has exceptionally high accuracy requirements for the line structure. It is required that the deformation and deflection of the line be controlled within a small range under the action of temperature differences and moving loads. The deflection or overarching of the beam caused by temperature difference or moving load is not a problem in traditional bridges. For modern high-speed traffic rail vehicles, especially in magnetic levitation tracks, these temperature difference or moving load The small deformation caused will affect the high-speed operation of the train. Under the action of temperature difference, the support reaction force of the middle pier of the continuous track beam, whether vertical or horizontal, is generally much greater than that of the simply supported beam.
- the method is self-explanatory: In high-speed traffic, especially in high-speed traffic on magnetic levitation tracks, the running track of a rail vehicle is distributed on a reinforced concrete multi-span beam.
- the multi-span beam is designed with a support and is supported on a support pier, which supports either end of a span.
- the beams referred to here, especially the empty box beams, have a bridge-shaped structure on the side.
- the beams are provided with anchors, which run vertically and are curved, similar to a sine curve.
- the highest point of the element is within the range of the support, and its lowest point is basically in the middle of each span of the beam, so each span of the beam has a certain curvature to compensate its own weight.
- the present invention contemplates a new manufacturing method that reduces manufacturing and construction costs and has a more reasonable structural force.
- This method is suitable for the traveling track of a rail vehicle, and is particularly suitable for a maglev railway.
- Tracks, track beams can be reinforced concrete structures or steel structures, which are connected by several single-span or multi-span beams.
- the connection method is: prefabricated, simply transported, installed, positioned according to simply supported beams, and then connected.
- the connected continuous points are close to continuous two-span or multi-span continuous beams in the direction of the vertical plane, but are still close to hinged two-span or multi-span simply supported beams in the horizontal plane.
- Each section of the track beam between each support pier is prefabricated, processed, transported, installed, accurately positioned in the form of a simply supported beam, and then every two or more spans In the vertical plane, that is, the bending rigidity is connected as much as possible around the horizontal axis, close to the structural form of the continuous beam, and in the horizontal direction, that is, about the vertical axis, the bending stiffness is designed to be as small as possible, close to the hinged two.
- Span or multispan simply supported beam is designed to be as small as possible, close to the hinged two.
- the continuous beam has superior structural performance compared with two simply supported beams of equal section in terms of controlling deformation caused by temperature difference or live load, but due to the continuous beam structure of the track beam Generally, it is constructed by prefabrication and erection. Due to its huge size and weight, and because the multi-span continuous beam belongs to an external statically indeterminate structure with multi-point support, it must always maintain the state of multi-point support during transportation and lifting. In addition, the relative displacement of any fulcrum must be controlled within a small range to ensure the safety of the track beam itself. Otherwise, the entire beam will be easily damaged during the construction process.
- the invention has substantial characteristics and significant progress, solves the disadvantages of large volume and awkwardness of continuous beams in prefabrication, processing, transportation and installation, and has a low foundation cost.
- the implementation of the present invention has a level of creativity that overcomes problems that the background technology cannot solve for a long time, and has strong practical value.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Railway Tracks (AREA)
Description
磁悬浮、 有轨铁路的轨道梁的制造方法 技术领域
本发明涉及的是一种轨道梁的制造方法， 特别是一种磁悬浮、 有轨铁路的 轨道梁的制造方法， 属于交通运输类的轨道领域。 技术背景
由于磁悬浮列车等现代高速轨道交通系统在高速运行时， 系统对线路结构 有异常高的精度要求， 要求线路在温差、 移动载荷等的作用下， 其变形和挠度 控制在很小的范围内。 由温差或移动载荷引起的梁的挠曲或上拱在传统的桥梁 中是不成问题的， 而对现代高速交通的有轨车辆的行驶轨道而言， 特别是磁悬 浮轨道中， 这些温差或移动载荷引起的微小变形会影响列车的高速运行。 在温 差作用下， 连续轨道梁的中间墩所受到无论是竖直方向还是水平方向的支座反 力一般要比简支梁的支反力大许多。 从高架基础的结构特征来说， 其抵抗竖向 反力的性能较好， 竖直反力的增大对下部基础造价的增加影响不敏感。 而这类 基础对抵抗水平力的能力往往较差， 每一次上部结构引起的水平反力的较小增 加都会造成下部基础用材大量增加。 这对软土地基的情况尤其如此。 经对本发 明的主题的文献检索， 发现德国专利申请， 申请号为： DE19936756A1 , 名称 为： 有轨车辆的行驶轨道， 该项专利申请技术也涉及将若干段简支梁形式的轨 道梁连接成连续的方法， 该技术自述： 在高速交通中， 特别是在磁悬浮轨道的 高速交通中， 有轨车辆的行驶轨道是分布在钢筋混凝土多跨梁上的。 多跨梁设 计有支座， 架在支墩上， 该支墩支撑着某一跨的任一端。 这里所指的梁， 特别 是空箱式梁其侧面呈桥形结构， 该梁设有锚固件， 竖直走向， 曲线形， 类似于 正弦曲线。 该元件的最高点在支座范围内， 其最低点基本上是在梁的每一跨的 中间， 所以梁的每一跨都有一定曲率是为了补偿自身重量。 虽然该技术也采用 了后续连续的方法将若干段轨道梁连接成连续梁， 但它是将若干段简支梁连成 无论在垂直方向还是水平方向均为完全连续的梁， 即连成一根真正连续的梁。
因此这样的结构形式无法克服两大缺陷与不足： 1、 连续梁中间墩水平力反力 过大， 2、 下部结构基础造价较高。 发明内容和具体实施方法
本发明针对背景技术存在的缺陷与不足， 构思出一种降低制作和施工成 本， 结构受力更加合理的新的制造方法， 这种方法适用于有轨车辆的行驶轨道， 尤其适用于磁悬浮轨铁路轨道， 轨道梁可以是钢筋混凝土结构， 也可以是钢结 构， 由若干段单跨或多跨梁连接而成， 其连接方式为： 按简支梁预制加工、 运 输、 安装、 定位， 然后连接， 连接后的连续点在竖向平面内方向是接近连续两 跨或多跨连续梁， 但在水平面侧向仍为接近铰接的两跨或多跨简支梁。
以下对发明进一步描述其技术方案： 轨道梁的介于各支墩之间的各段均预 先按简支梁的形式预制、 加工、 运输、 安装、 精确定位， 然后再将每两跨或多 跨在竖向平面， 即绕水平轴方向连成弯曲刚度尽可能大， 接近连续梁的结构形 式， 而在水平方向， 即绕竖向轴方向， 设计成弯曲刚度尽可能小， 接近于铰接 的两跨或多跨简支梁。
本通过计算和试验可以知道， 连续梁在结构性能上与其等截面的两根简支 形式的梁相比， 在控制温差或活载荷引起的变形方面具有优越性， 但由于连续 梁结构的轨道梁一般要通过预制制造再架设的方式施工， 由于自身尺寸和重量 的巨大， 同时由于多跨连续梁属于多点支承的外部超静定结构， 在运输及吊装 过程中必须始终保持多点支承的状态， 并且其任一支点的相对变位均要控制在 很小的范围， 才能保证轨道梁本身的安全。 否则在施工过程中极易造成整根梁 的破坏。 因此在线路施工时， 不仅要在沿线平行修筑高等级的运梁专用道路， 同时还要配备多点支承的运梁专用台车及多点同步起吊的专用吊装设备， 给制 造、 加工、 运输、 安装和定位带来很大的困难， 大大增加了制作和施工成本。 利用连续梁具有控制温差及活荷载等影响因素下较小变形的优点， 同时克服连 续梁在预制、 加工、 运输和安装中体量巨大、 笨拙等缺点， 即设计出集多跨连 续梁与单跨简支梁的所有优点于一体， 同时又克服了各自缺点的一种新的轨道
结构形式。
本发明具有实质性特点和显著进步， 解决了连续梁在预制、 加工、 运输和 安装中体积巨大、 笨拙的缺点， 而且基础造价较低。 本发明的实施其创造性水 平克服了背景技术长期无法解决的问题， 并具有很强的实用价值。
Claims
1、 一种磁悬浮、 有轨铁路的轨道梁的制造方法 ， 其特征在于由若干段单 跨或多跨梁连接而成， 其连接方式为： 按简支梁预制加工、 运输、 安装、 定位， 然后连接， 连接后的连续点在竖向平面内方向是接近连续两跨或多跨连续梁， 但在水平面侧向仍为接近铰接的两跨或多跨简支梁。
2、 根据权利要求 1 所述的这种磁悬浮、 有轨铁路的轨道梁的制造方法， 其特征是轨道梁的介于各支墩之间的各段均预先按简支梁的形式预制、 加工、 运输、 安装、 精确定位， 然后再将每两跨或多跨在竖向平面， 即绕水平轴方向 连成弯曲刚度尽可能大， 接近连续梁的结构形式， 而在水平方向， 即绕竖向轴 方向， 设计成弯曲刚度尽可能小， 接近于铰接的两跨或多跨简支梁。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01132090.7 | 2001-11-01 | ||
| CN01132090A CN1127593C (zh) | 2001-11-01 | 2001-11-01 | 磁悬浮、有轨铁路的轨道梁的制造方法 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2003038189A1 true WO2003038189A1 (fr) | 2003-05-08 |
Family
ID=4671135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2002/000462 WO2003038189A1 (fr) | 2001-11-01 | 2002-07-01 | Procede de fabrication d'une poutre porteuse d'un chemin de fer a sustentation magnetique |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN1127593C (zh) |
| HK (1) | HK1045342B (zh) |
| WO (1) | WO2003038189A1 (zh) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10253136A1 (de) * | 2002-11-14 | 2004-05-27 | Cbp Guideway Systems Gmbh | Funktionsebenenträger |
| CN100465376C (zh) * | 2005-06-29 | 2009-03-04 | 上海磁浮交通工程技术研究中心 | 高速磁浮叠合式轨道梁连接机构、轨道梁及其制造方法 |
| CN1317454C (zh) * | 2005-06-29 | 2007-05-23 | 上海磁浮交通工程技术研究中心 | 磁浮交通叠合式轨道梁及其制造方法 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1272437A (zh) * | 2000-06-02 | 2000-11-08 | 宋铁理 | 单轨道梁的安装方法及其运梁车和架桥机 |
| CN1313919A (zh) * | 1999-08-09 | 2001-09-19 | 马克斯博革建筑有限公司 | 多跨支承梁体 |
-
2001
- 2001-11-01 CN CN01132090A patent/CN1127593C/zh not_active Expired - Lifetime
-
2002
- 2002-07-01 WO PCT/CN2002/000462 patent/WO2003038189A1/zh not_active Application Discontinuation
- 2002-08-10 HK HK02105855.1A patent/HK1045342B/zh not_active IP Right Cessation
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1313919A (zh) * | 1999-08-09 | 2001-09-19 | 马克斯博革建筑有限公司 | 多跨支承梁体 |
| CN1272437A (zh) * | 2000-06-02 | 2000-11-08 | 宋铁理 | 单轨道梁的安装方法及其运梁车和架桥机 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1343812A (zh) | 2002-04-10 |
| HK1045342A1 (en) | 2002-11-22 |
| HK1045342B (zh) | 2004-07-23 |
| CN1127593C (zh) | 2003-11-12 |
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