WO2017084636A1 - Traverse en tube d'acier d'acier rempli de béton appropriée pour voie sans ballast - Google Patents

Traverse en tube d'acier d'acier rempli de béton appropriée pour voie sans ballast Download PDF

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Publication number
WO2017084636A1
WO2017084636A1 PCT/CN2016/110229 CN2016110229W WO2017084636A1 WO 2017084636 A1 WO2017084636 A1 WO 2017084636A1 CN 2016110229 W CN2016110229 W CN 2016110229W WO 2017084636 A1 WO2017084636 A1 WO 2017084636A1
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WO
WIPO (PCT)
Prior art keywords
sleeper
concrete
filled steel
filled
ballastless track
Prior art date
Application number
PCT/CN2016/110229
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English (en)
Chinese (zh)
Inventor
孙立
王森荣
李秋义
陈潇
林超
Original Assignee
中铁第四勘察设计院集团有限公司
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Publication of WO2017084636A1 publication Critical patent/WO2017084636A1/fr

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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B3/00—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails
    • E01B3/28—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone
    • E01B3/32—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone with armouring or reinforcement
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B2204/00—Characteristics of the track and its foundations

Definitions

  • the invention belongs to the field of ballastless track concrete sleepers, and more particularly to a steel tube concrete sleeper suitable for ballastless tracks.
  • the function of the sleeper is mainly to provide the positioning of the embedded parts of the fasteners and the geometrical position of the track during the construction of the ballastless track bed.
  • the rails are required to have good shape retention, and the deformation, bending and torsion resistance should be satisfied during manufacturing, storage, transportation and construction.
  • the main structure of the ballastless track is guaranteed to meet the requirements of the concrete structure related durability requirements, and the traditional concrete long sleeper has been Gradually optimize the design of concrete sleeper blocks that are connected and positioned by truss reinforcement.
  • the application of concrete sleepers in ballastless track mainly includes: (1) French Stdedf sleepers, whose sleeper connecting parts are made of angle steel; (2) German radar 2000, whose sleeper connecting parts are made of reinforced trusses or reinforcing bars, such as application Publication No. CN102277799A, a steel-reinforced mesh concrete sleeper disclosed in the patent document published on December 14, 2011, the disclosure of which is incorporated herein by reference. No. CN100443663C, a block type or multi-block sleeper disclosed in the patent document of December 17, 2008, and a manufacturing method thereof, the CRTS I type block type sleeper which is widely laid in the country is digested on the basis of the radar 2000 sleeper.
  • Trapezoidal sleepers with steel pipes as connecting parts such as the authorized bulletin number CN1135279C, a type of trapezoidal sleeper and railway track disclosed in the patent document dated January 21, 2004; No. CN1099505C, a railway road disclosed in the patent document dated January 22, 2003 Rail ladder type rail sleeper steel pipe joints.
  • Stdedf-type ballastless track adopts block type concrete sleepers, and the sleeper concrete blocks are connected by angle steel to increase stability.
  • the sleeper production process is simple, but the sleeper uses angle steel. More, higher cost, poor resistance to deformation of the sleeper;
  • Radar 2000 and CRTS type I block type truss truss are space welded structures of multiple straight chord bars and two wavy webs, which are cooled It is produced by rolling, straightening, bending and welding.
  • the reinforced concrete truss is made of special equipment. The process is complicated and the equipment is expensive, which leads to high cost of the sleeper.
  • Trapezoidal sleeper with steel pipe as the connecting component which mainly uses steel pipe to realize the connection of two longitudinal beams.
  • the prepared sleeper is suitable for the ballasted track.
  • Special treatment such as end leveling or the use of prestressed steel bars and reinforcing bars to achieve effective coupling of steel pipes and longitudinal beams and prevent rotation, the preparation process is complicated On-site construction is not possible.
  • the present invention provides a concrete-filled steel tubular sleeper suitable for a ballastless track, wherein the concrete filled steel tube is applied in a concrete sleeper without ballast track, and the concrete filled steel tube is used as a connecting component of the sleeper block. It can effectively alleviate the deformation of concrete sleepers during storage and transportation; at the same time, it can realize the formation of concrete-filled steel tube while pouring the concrete blocks of sleepers, effectively increase the geometric shape retention ability of the sleepers, reduce the amount of steel bars, and improve the construction.
  • the concrete end of the concrete-filled steel tube of the present invention does not need special treatment, and the hollow steel pipe can be directly placed in the manufacturing mold of the sleeper concrete block, so that the concrete tube sleeper can be formed and constructed.
  • the steel pipe concrete sleeper of the present invention is particularly suitable for use in a ballastless track or the like.
  • the present invention provides a steel tubular concrete sleeper suitable for a ballastless track, characterized in that it comprises two or more sleeper concrete blocks and a sleeper joint for connecting the above-mentioned sleeper concrete blocks, wherein:
  • the sleeper concrete block has a block structure, which is poured from concrete; each of the sleepers The concrete block is provided with an embedded part for fixing the rail and a reinforcing mesh or stirrup for connecting the sleeper connecting piece, and the embedded part is used for ensuring reliable connection of the sleeper concrete block with the rail;
  • the sleeper connector is composed of a plurality of hollow steel pipes horizontally disposed between two adjacent sleeper concrete blocks, and the hollow steel pipe and the sleeper are made during the on-site pouring of the sleeper concrete block
  • the concrete block is poured into one body, and each hollow steel pipe is filled with concrete; in this way, the on-site construction of the steel pipe concrete sleeper is realized, and the workability of the steel pipe concrete sleeper is improved.
  • the hollow steel pipe is preferably a circular hollow steel pipe.
  • the hollow steel pipes are preferably two, which are distributed on both sides of the embedded part.
  • the hollow steel pipe is preferably three, and the three hollow steel pipes are preferably arranged in such a manner that the center line of the cross section of the three hollow steel pipes constitutes a triangle.
  • the side surface of the sleeper concrete block is provided with an inclination angle of 11:1 to 7:1, and the upper corners thereof are chamfered.
  • the reinforcing mesh or stirrup is independently placed in the sleeper concrete block to increase the strength of the sleeper concrete block.
  • the bending stiffness EI Z of the concrete-filled steel tubular sleeper is obtained by the following formula:
  • F is the concentrated load applied to the middle of the concrete sleeper
  • l is the bearing spacing in the loading model
  • q is the uniform load generated by the self-weight of the concrete-filled steel tubular sleeper
  • f is the maximum deflection displacement of the concrete sleeper under the load.
  • the torsional stiffness GI P of the concrete-filled steel tubular sleeper is obtained by the following formula:
  • T is the torque load applied to the sleeper concrete block (2)
  • the unit length twist angle of the concrete sleeper under the torque load is the torque load applied to the sleeper concrete block (2).
  • the concrete-filled steel tubular sleeper has a bending rigidity of 1145.3 kN/m 2 and a torsional rigidity of 61.7 kN ⁇ m 2 /rad.
  • the present invention provides a concrete-filled steel tubular sleeper with a steel tube concrete instead of a steel truss on the basis of the existing ballastless track concrete sleepers, and the above technical solutions conceived by the present invention are related to the prior art. Compared with, it mainly has the following technical advantages:
  • the invention applies the steel tube concrete in the concrete sleeper of the ballastless track, and uses the steel tube concrete as the connecting component of the sleeper block, which is more integral than the general combined reinforced truss connection, and can effectively alleviate the storage of the concrete sleeper.
  • the geometric shape retention ability of the sleeper reduces the amount of steel bars and improves the workability. It can be directly constructed on site to meet the requirements of the bending and torsion resistance of the sleepers.
  • the end of the concrete filled steel tube in the present invention does not need special treatment, and it is not necessary to provide prestressed steel bars in the concrete block of the sleeper, and the hollow steel pipe is directly placed in the manufacturing mold of the concrete structure of the sleeper, and is integrated with the concrete block of the sleeper. It can be used, the construction is convenient and fast, no special production equipment is needed, and the construction cost is low; and the concrete block of the pouring sleeper is basically symmetrical to the vertical axis of the rail, and the joint surface with the cast-in-place bed board is small, and the side of the concrete block of the sleeper is set to be certain.
  • the slope of the slope and the upper corners of the concrete block of the sleeper are chamfered to facilitate the demoulding of the concrete sleeper block during the manufacturing process and reduce the stress concentration of the concrete.
  • the concrete-filled steel tubular sleeper structure of the present invention has good bending and torsion resistance, and maintains the geometric position and capability, and The combination of the track bed board is good, and the stability of the track is strong; in addition, this The invention relates to a concrete-filled steel tubular sleeper which has the advantages of simple preparation process, low cost, reliable quality, flexible specifications, high precision and small error, and has high commercial promotion and application prospects.
  • FIG. 1 is a schematic view of a concrete-filled steel tubular sleeper using three steel pipe concrete joints according to the present invention
  • Figure 2 is a plan view of Figure 1;
  • Figure 3 is a side cross-sectional view of Figure 1;
  • Figure 4 is a schematic view of a concrete-filled steel tubular concrete sleeper according to the present invention.
  • Figure 5 is a plan view of Figure 4.
  • Figure 6 is a side cross-sectional view of Figure 4.
  • Figure 7 is a bending stiffness loading mode of a double steel tube concrete sleeper
  • Figure 8 is a twisting stiffness loading mode of a double steel tube concrete sleeper
  • Figure 9 is a schematic view of a multi-tube concrete sleeper.
  • a concrete-filled steel tubular sleeper suitable for ballastless track comprises two sleeper concrete blocks 2 and a sleeper joint 3 (ie, concrete filled steel tube) for connecting two sleeper concrete blocks 2, two
  • the sleeper concrete block 2 has a block structure, which is casted by concrete; the two sleeper concrete blocks 2 are provided with embedded parts 5 for fixing the rails 1, and the embedded parts 5 make each of the sleeper concrete blocks 2 symmetrical On the vertical axis of the rail 1 mounted thereon, and to ensure that the sleeper concrete block 2 and the rail 1 are reliably connected by fasteners; the concrete filled steel tube is located between two adjacent sleeper concrete blocks 2 for use in the two sleepers
  • the concrete blocks 2 are connected as a whole, wherein the concrete filled steel tube is horizontally arranged horizontally on two adjacent sleeper concrete blocks by using a plurality of hollow steel pipes In the manufacturing mold of 2, it is poured into the concrete block 2, and in the pouring process, each hollow steel pipe is filled with concrete, and the horizontal direction is perpendicular to the arrangement direction
  • the upper surface of the sleeper concrete block 2 is not provided with inner and outer shoulders, which is convenient for the construction personnel to step on; the side of the sleeper concrete block 2 is inclined at a angle of 11:1 to 7:1, so as to be demoulded during manufacture, and the corners of the concrete block of the sleeper are
  • the chamfering treatment is not only convenient for demoulding, but also prevents or reduces the stress concentration of the concrete of the surrounding road bed and reduces the crack of the concrete of the road bed;
  • the steel mesh or stirrup 4 is arranged in the concrete block 2 of the sleeper, the steel mesh
  • the sheets or stirrups 4 are independently placed in the sleeper concrete block 2 to increase the strength of the sleeper concrete block.
  • the above-mentioned concrete-filled steel tubular sleepers are embedded in the cast-in-place concrete track bed after being prefabricated, and are one of the important components of the pillow-type ballastless track system.
  • a concrete-filled steel tubular sleeper having three or more sleeper concrete blocks can be obtained by the present invention to facilitate application to various multi-track sections.
  • any type of hollow tube such as a plastic hollow tube may be used instead of the hollow steel tube of the present invention, and only the strength, bending resistance and torsion resistance are required to meet the requirements.
  • the present embodiment performs a bending and torsion resistance test of the concrete-filled steel tubular sleeper and the existing reinforced concrete truss sleeper.
  • the bending stiffness of the concrete-filled steel tubular sleeper is better than that of the steel truss sleeper.
  • the torsional stiffness comparison test is shown in Figure 8.
  • the reinforced concrete truss sleepers and reinforced concrete sleepers are loaded in the same way.
  • the middle part of the upper and lower surfaces of the left sleeper block is clamped by the splint and the right side is completely fixed.
  • the following test is obtained through comparison test. result:
  • T is the torque load applied to the concrete block on the other side when the concrete block on the side of the sleeper is fixed. It can be seen from the above model test that the torsional stiffness of the double-tube concrete sleeper is slightly smaller than that of the double-reinforced truss sleeper.
  • the steel bars of the reinforced concrete truss sleepers and the reinforced concrete sleepers are compared with each other, and the steel for the single sleeper of the reinforced truss sleepers is 18.1 kg, and the single root of the concrete filled steel sleepers is obtained.
  • the steel for the sleeper is 16.6kg, and the steel for the single sleeper of the concrete-filled steel tubular sleeper is smaller than the steel truss sleeper.
  • the concrete-filled steel tubular sleeper of the present invention is superior to the reinforced concrete truss sleeper in bending rigidity and steel for a single sleeper, and the torsional rigidity is slightly smaller than that of the reinforced truss sleeper, so it has high theoretical value and commercial promotion prospect.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)

Abstract

Cette invention concerne une traverse en tube d'acier d'acier rempli de béton appropriée pour une voie sans ballast, comprenant un ou plusieurs blocs de béton de traverse (2) et des pièces de liaison de traverse (3) pour relier les blocs de béton de traverse (2). Les blocs de béton de traverse (2) présentent des structures en bloc, ils sont formés par coulée de béton et sont intérieurement dotés de parties encastrées (5) utilisées pour fixer des rails en acier (2) et des pièces de treillis ou des étriers en acier d'armature reliés aux pièces de liaison de traverse (3). Les pièces de liaison de traverse (3) sont formées par une pluralité de tubes d'acier creux qui sont agencés entre les blocs de béton de traverse (2) le long de la direction transversale. Lors d'un processus de coulée des blocs de béton de traverse (2), les tubes d'acier creux sont intérieurement remplis de béton en même temps, de telle sorte que des tubes d'acier remplis de béton sont formés, et les pièces de liaison de traverse (3) ainsi que les blocs de béton de traverse (2) sont de plus formés en une seule pièce par coulée. Lorsqu'ils sont appliqués à une traverse en béton d'une voie sans ballast, les tubes d'acier remplis de béton sont considérés comme des pièces de liaison de blocs de traverse, et les tubes d'acier remplis de béton ainsi que les blocs de béton de traverse (2) sont moulés en une seule pièce, de sorte que la capacité de la traverse à préserver sa configuration est efficacement améliorée et la consommation en acier est réduite. La présente invention présente les avantages d'être simple à préparer, d'avoir une bonne constructibilité, etc.
PCT/CN2016/110229 2015-11-20 2016-12-16 Traverse en tube d'acier d'acier rempli de béton appropriée pour voie sans ballast WO2017084636A1 (fr)

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CN201510814742.2A CN105463948B (zh) 2015-11-20 2015-11-20 一种适用于无砟轨道的钢管混凝土轨枕
CN201510814742.2 2015-11-20

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CN109183524A (zh) * 2018-08-30 2019-01-11 广州地铁设计研究院股份有限公司 一种适用于城市轨道交通的无砟轨道长轨枕
CN110396878A (zh) * 2019-08-13 2019-11-01 长沙瀚鹏电子技术有限公司 一种轨枕扣件安装车
CN113011061A (zh) * 2021-03-04 2021-06-22 东华理工大学 一种内置波纹圆筒空心楼盖刚度测算方法
CN113010941A (zh) * 2021-02-25 2021-06-22 东华理工大学 一种内置薄壁波纹圆筒空心楼盖力学分析测算方法
CN113605153A (zh) * 2021-08-10 2021-11-05 中铁第一勘察设计院集团有限公司 可安装护轮轨的双块式轨枕
CN114232393A (zh) * 2022-02-10 2022-03-25 中国铁道科学研究院集团有限公司铁道建筑研究所 一种稳定无砟轨道平面线形的装置及方法
CN114239360A (zh) * 2021-12-20 2022-03-25 中铁第六勘察设计院集团有限公司 一种有砟轨道道砟垫静刚度测试荷载范围确定方法
CN115110706A (zh) * 2022-07-11 2022-09-27 中建八局第一建设有限公司 一种预制组合楼梯及其施工方法
CN116227262A (zh) * 2022-12-12 2023-06-06 中国矿业大学 一种高速铁路无砟轨道宽频动力学精细化仿真方法

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CN105463948B (zh) * 2015-11-20 2017-10-27 中铁第四勘察设计院集团有限公司 一种适用于无砟轨道的钢管混凝土轨枕
CN107190585A (zh) * 2017-07-10 2017-09-22 中铁第四勘察设计院集团有限公司 一种现浇轨枕板式无砟轨道及其施工方法
CN107217551A (zh) * 2017-07-10 2017-09-29 中铁第四勘察设计院集团有限公司 一种装配式钢管混凝土双块式轨枕
CN109457547A (zh) * 2018-12-13 2019-03-12 中铁第四勘察设计院集团有限公司 一种钢管混凝土与轨枕块的搭接式连接加强结构
CN109457548A (zh) * 2018-12-14 2019-03-12 中铁第四勘察设计院集团有限公司 一种钢管混凝土与轨枕块的贯穿式连接加强结构
CN109457549A (zh) * 2018-12-17 2019-03-12 中铁第四勘察设计院集团有限公司 无砟轨道的钢管混凝土与轨枕块之间的框型连接加强结构
CN109457551B (zh) * 2018-12-18 2024-06-21 中铁第四勘察设计院集团有限公司 轨枕块与道床之间的组合框架型连接加强结构及施工方法
CN109457550A (zh) * 2018-12-18 2019-03-12 中铁第四勘察设计院集团有限公司 一种轨枕块与道床之间的凹槽型连接加强结构及施工方法
CN110424191A (zh) * 2019-07-24 2019-11-08 中铁第四勘察设计院集团有限公司 无砟轨道的钢管混凝土构件与轨枕块的防脱离设计
CN110424190A (zh) * 2019-07-24 2019-11-08 中铁第四勘察设计院集团有限公司 无砟轨道的钢管混凝土构件与轨枕块的连接加强设计

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CN105463948A (zh) * 2015-11-20 2016-04-06 中铁第四勘察设计院集团有限公司 一种适用于无砟轨道的钢管混凝土轨枕
CN205171283U (zh) * 2015-11-20 2016-04-20 中铁第四勘察设计院集团有限公司 一种适用于无砟轨道的钢管混凝土轨枕

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CN109183524A (zh) * 2018-08-30 2019-01-11 广州地铁设计研究院股份有限公司 一种适用于城市轨道交通的无砟轨道长轨枕
CN110396878A (zh) * 2019-08-13 2019-11-01 长沙瀚鹏电子技术有限公司 一种轨枕扣件安装车
CN113010941B (zh) * 2021-02-25 2023-05-12 衢州学院 一种内置薄壁波纹圆筒空心楼盖力学分析测算方法
CN113010941A (zh) * 2021-02-25 2021-06-22 东华理工大学 一种内置薄壁波纹圆筒空心楼盖力学分析测算方法
CN113011061B (zh) * 2021-03-04 2023-05-12 衢州学院 一种内置波纹圆筒空心楼盖刚度测算方法
CN113011061A (zh) * 2021-03-04 2021-06-22 东华理工大学 一种内置波纹圆筒空心楼盖刚度测算方法
CN113605153A (zh) * 2021-08-10 2021-11-05 中铁第一勘察设计院集团有限公司 可安装护轮轨的双块式轨枕
CN114239360A (zh) * 2021-12-20 2022-03-25 中铁第六勘察设计院集团有限公司 一种有砟轨道道砟垫静刚度测试荷载范围确定方法
CN114232393A (zh) * 2022-02-10 2022-03-25 中国铁道科学研究院集团有限公司铁道建筑研究所 一种稳定无砟轨道平面线形的装置及方法
CN115110706A (zh) * 2022-07-11 2022-09-27 中建八局第一建设有限公司 一种预制组合楼梯及其施工方法
CN115110706B (zh) * 2022-07-11 2023-09-29 中建八局第一建设有限公司 一种预制组合楼梯及其施工方法
CN116227262A (zh) * 2022-12-12 2023-06-06 中国矿业大学 一种高速铁路无砟轨道宽频动力学精细化仿真方法
CN116227262B (zh) * 2022-12-12 2023-12-12 中国矿业大学 一种高速铁路无砟轨道宽频动力学精细化仿真方法

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