WO2007093131A1 - Procédé de construction d'un pont maritime - Google Patents

Procédé de construction d'un pont maritime Download PDF

Info

Publication number
WO2007093131A1
WO2007093131A1 PCT/CN2007/000576 CN2007000576W WO2007093131A1 WO 2007093131 A1 WO2007093131 A1 WO 2007093131A1 CN 2007000576 W CN2007000576 W CN 2007000576W WO 2007093131 A1 WO2007093131 A1 WO 2007093131A1
Authority
WO
WIPO (PCT)
Prior art keywords
bridge
sea
constructing
floating
floating platform
Prior art date
Application number
PCT/CN2007/000576
Other languages
English (en)
Chinese (zh)
Inventor
Yifang Yang
Original Assignee
Yifang Yang
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yifang Yang filed Critical Yifang Yang
Publication of WO2007093131A1 publication Critical patent/WO2007093131A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D15/00—Movable or portable bridges; Floating bridges
    • E01D15/14—Floating bridges, e.g. pontoon bridges

Definitions

  • the invention relates to a bridge technology, in particular to a construction technique of a cross-sea bridge.
  • cross-sea traffic uses mostly real-base bridges, such as Hangzhou Bay and Donghai Bridge; there are also tunnel schemes, such as the Tsugaru Strait in Japan.
  • the foundation bridge technology can be combined with the cables and box girder structures to reduce the cost or safety of the bridge deck to some extent.
  • the super-long and ultra-deep The problem is difficult to solve. This will consume a lot of manpower and material resources, so that the cost of the beam will be greatly increased, which will affect the investment value of the infrastructure. Even the original technology cannot be realized.
  • the tunnel scheme is limited by the construction period, and the pressure is too large for the ventilation system. The resistance to catastrophic effects such as earthquake resistance is relatively weak.
  • the task of the present invention is to solve the problem of investment cost and safety and stability caused by the two problems of ultra-deep and super-long bridges.
  • the invention adopts a floating body fixed on the sea bottom by a cable or the like as a buffer platform of a bridge foundation, and the buoyancy of the floating body cancels the bridge itself and the bridge surface load, thereby achieving the purpose of simplifying the bridge structure and stabilizing the bridge foundation.
  • a method for constructing a cross-sea bridge characterized in that the floating force generated by the floating body structure under the surface of the water is used to offset part of the bridge body and the load, and to support the weight of the bridge base and the bridge body, and the average density of the floating body structure is lower than that of the water.
  • Two or more stages of pontoon construction can be used in the deep sea.
  • the floating body structure is integrally formed in a platform-like floating platform structure, and the floating platform is fixed to the bottom of the water by a cable or a column beam.
  • the surface of the floating platform is made of materials resistant to seawater salt alkali corrosion and biodegradation.
  • the interior is made of lightweight materials.
  • the average density of the floating platform is 1/2-1/10 of the average density of the water.
  • the cross-sectional area of the pontoon structure and the vertical direction of the bridge deck should be reduced as much as possible to reduce the impact of water flow on the pontoon.
  • the width of the pontoon exceeds the deck to stabilize the deck. It is more stable with a floating body connection.
  • the invention Compared with the original foundation technology and the tunnel scheme originally used in the cross-sea bridge application, the invention has the advantages of cost saving, rapid construction, strong anti-destructive disaster capability and the like. Make the structure of the cross-sea bridge more rational and greatly reduce the construction cost, or increase the load capacity of the bridge for unit cost.
  • Figure 1 is a schematic view of the structure of the present invention.
  • 1 is the bridge base
  • 2 is the cable
  • 3 is the floating platform
  • the preset floating body platform (also referred to as a floating platform) in the present invention adopts a floating body structure whose average density is much lower than that of water, and the floating body is fixed under the water surface with a cable or a column beam during construction, and the preset floating body bearing Refer to the local hydrology for the depth of the platform, and the surface of the bridge will not be exposed to the water surface.
  • the cable or column beam directly fixes the bottom of the water, and the secondary or multi-stage preset floating body cap connection is connected in the ultra-deep sea area to achieve stability; the tension direction of the cable or column beam is designed to achieve the preset stable posture of the floating platform. aims.
  • the bridge is erected on the floating foundation, and can be combined with the structure of the box girder and the stay cable. ⁇
  • the destructive force of the seawater is mainly concentrated on the waves on the sea surface, so as to reduce the destructive force, the preset floating part of the floating platform is minimized.
  • the volume is carried out using an X-type bridge base
  • the buoyancy of the preset floating platform is based on the proper proportion of the total pressure of the bridge and the maximum load. Due to the buoyancy and gravity, the direction of the bridge column and its foundation load and force can be greatly reduced, so that the overall structure of the bridge can be economical.
  • the design of the preset floating platform is to refer to the hydrological data such as the flow direction of the water. According to the geographical attributes of the channel, the cross-sectional area in the vertical direction of the surface is generally minimized. Reduce the impact of the water flow on the floating platform, so that the impact of the water flow can be reduced.
  • the method is to minimize the thickness of the preset floating platform and the streamline type when designing. At the same time, increase the preset width of the floating platform to increase the pair. Stable control of the floating platform. If the sea water is deep, it is also considered to be more consistent by connecting a plurality of preset floating body caps.
  • the bridge base and the floating platform are hard or soft connected, such as a hard connection, which can directly pour the bridge base on the floating platform.
  • the shape of the pontoon can be varied, such as square or rectangular, or it can be designed to be wide and thin. Due to the safety and durability of the bridge design, the preset floating platform is designed with reference to the economy. At the same time, it is required to pay attention to the structural stability.
  • the floating material and cables and other components are resistant to seawater alkali corrosion and biodegradation. When designing and constructing bridges, it is possible to use component combinations as much as possible, and to build on shore and then assemble and fix on the ocean, which can save a lot of construction costs.
  • the structure of the sea-crossing bridge of the present invention adopts a multi-stage floating platform structure, such as a plurality of floating platforms 3 in the figure, the top of the floating platform 3 supports the bridge base 1, and the lower part of the floating platform 3 is fixed by the cable 2 seabed.
  • the preset pontoon cap can be used as a bridge to erect a bridge across the sea;
  • the floating platform is made of cement tank and the interior is filled with high-strength polystyrene, so that the average density can be less than 300 kg I cubic, resulting in 700 kg of force I cubic buoyancy, thus offsetting the bridge itself and the bridge load. It is only necessary to fix the preset floating body platform by multi-directional oblique pulling of the steel cable on the seabed, without spending huge sums of money to construct a physical pier from the seabed or construct an unsafe tunnel.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

La présente invention concerne un procédé de construction d'un pont maritime, qui fait appel à des de fondations tampons se présentant sous la forme de structures flottantes (3), qui contrebalancent une partie du poids mort et de la charge du pont et supportent le poids des fondations (1) et du corps du pont. Les structures flottantes (3) sont formées d'un matériau d'une densité moyenne inférieure à celle de l'eau, et sont fixées sous l'eau à l'aide de câbles d'ancrage (2) ou analogues. Le procédé selon l'invention présente l'avantage de ne pas occasionner de coûts importants et d'éviter les problèmes d'étroitesse de la zone de construction, de faible capacité de résistance aux catastrophes, d'écoulement d'air stagnant, etc.
PCT/CN2007/000576 2006-02-17 2007-02-16 Procédé de construction d'un pont maritime WO2007093131A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN 200610038344 CN1811066A (zh) 2006-02-17 2006-02-17 跨海桥梁构造
CN200610038344.7 2006-02-17

Publications (1)

Publication Number Publication Date
WO2007093131A1 true WO2007093131A1 (fr) 2007-08-23

Family

ID=36844169

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2007/000576 WO2007093131A1 (fr) 2006-02-17 2007-02-16 Procédé de construction d'un pont maritime

Country Status (2)

Country Link
CN (1) CN1811066A (fr)
WO (1) WO2007093131A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO20150509A1 (no) * 2015-04-19 2016-10-20 Roedstoel Oeystein Flytebru og plattform som er bygd på forankret dyptflytende undervannsfundament
CN114059437A (zh) * 2020-07-31 2022-02-18 李宽 造价低工期短的轻型长距离跨海智能永久铁路公路浮桥

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2135637A (en) * 1983-02-21 1984-09-05 Fayren Jose Marvo Modular pontoon bridge
CN1259602A (zh) * 1999-01-06 2000-07-12 刘寄声 一种不随波浪晃动的海上浮桥及其架设方法
CN2390911Y (zh) * 1999-08-09 2000-08-09 林涛 海洋潜浮式浮桥
CN2628577Y (zh) * 2003-04-30 2004-07-28 王仕禹 一种潜浮桥

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2135637A (en) * 1983-02-21 1984-09-05 Fayren Jose Marvo Modular pontoon bridge
CN1259602A (zh) * 1999-01-06 2000-07-12 刘寄声 一种不随波浪晃动的海上浮桥及其架设方法
CN2390911Y (zh) * 1999-08-09 2000-08-09 林涛 海洋潜浮式浮桥
CN2628577Y (zh) * 2003-04-30 2004-07-28 王仕禹 一种潜浮桥

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO20150509A1 (no) * 2015-04-19 2016-10-20 Roedstoel Oeystein Flytebru og plattform som er bygd på forankret dyptflytende undervannsfundament
CN114059437A (zh) * 2020-07-31 2022-02-18 李宽 造价低工期短的轻型长距离跨海智能永久铁路公路浮桥

Also Published As

Publication number Publication date
CN1811066A (zh) 2006-08-02

Similar Documents

Publication Publication Date Title
JP2020514181A (ja) 浮体式海洋プラットフォーム
WO2007104251A1 (fr) Treillis flottant
US20110174206A1 (en) Wave attenuating large ocean platform
US8764346B1 (en) Tension-based tension leg platform
US20160083052A1 (en) Pontoon Platform and Arrangement Having the Pontoon Platform
CN207331431U (zh) 一种桥梁用减震装置
JP2018502761A (ja) 風力エネルギーを利用するための浮体式プラットフォーム
CN114228929B (zh) 一种用于海上光伏发电的张力腿海洋平台
Watanabe et al. Analysis and design of floating bridges
CN110671280A (zh) 漂浮式风机基础
Han et al. Development of self-floating fibre reinforced polymer composite structures for photovoltaic energy harvesting
CN201520401U (zh) 一种水上浮动式城市
CN203200647U (zh) 桥墩防船撞装置用固态泡沫填充刚浮箱
WO2007093131A1 (fr) Procédé de construction d'un pont maritime
CN113619742A (zh) 一种混合型浮式海上风机平台及其复合材料边柱的设计构造方法
WO2021224525A1 (fr) Plateforme flottante en béton armé applicable à l'industrie du secteur de l'éolien marin
CN1112483C (zh) 一种不随波浪晃动的海上浮桥及其架设方法
CN207595210U (zh) 浮式码头及其浮体结构
CN108239916B (zh) 一种内壁钢板与超高性能混凝土组合的浮箱
US4834014A (en) Floating platform structure
CN202718034U (zh) 新型浮式组合跨海大桥
WO2020136288A1 (fr) Plate-forme flottante pour aérogénérateurs de grande puissance
CN107972827A (zh) 浮式码头及其浮体结构
JP2008274733A (ja) 回転浮上式堤防
CN105386938A (zh) 用于海上风电升压站的柔性支架装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application
NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 07720253

Country of ref document: EP

Kind code of ref document: A1