WO2022083380A1 - 一种应用于轨道运营线的上盖结构体系及其实施方法 - Google Patents

一种应用于轨道运营线的上盖结构体系及其实施方法 Download PDF

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Publication number
WO2022083380A1
WO2022083380A1 PCT/CN2021/119483 CN2021119483W WO2022083380A1 WO 2022083380 A1 WO2022083380 A1 WO 2022083380A1 CN 2021119483 W CN2021119483 W CN 2021119483W WO 2022083380 A1 WO2022083380 A1 WO 2022083380A1
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Prior art keywords
prefabricated
prefabricated frame
column
cover structure
structure system
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PCT/CN2021/119483
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English (en)
French (fr)
Inventor
谭奇峰
朱德荣
吴颖
沈利
荣泽华
郝苗
肖剑飞
孙天荣
马铭
邓季坤
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中铁上海设计院集团有限公司
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Publication of WO2022083380A1 publication Critical patent/WO2022083380A1/zh

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
    • E04B1/21—Connections specially adapted therefor
    • E04B1/215—Connections specially adapted therefor comprising metallic plates or parts

Definitions

  • the invention relates to the technical field of the upper cover structure of rail transit, in particular to an upper cover structure system applied to a rail operation line and an implementation method thereof.
  • steel structure or prefabricated concrete structure can be used.
  • daily maintenance is required, including rust and anti-corrosion of steel structure, especially for urban rail transit, the maintenance unit under the cover and the use of the cover The units are not the same, and it is difficult to coordinate during work. Therefore, the prefabricated concrete structure has obvious advantages in the subsequent operation and use.
  • the prefabricated concrete structure generally spans a small span, and requires temporary construction support. After the post-cast concrete and the prefabricated member form a superimposed member, the overall force can be removed, and the temporary construction support can be removed. It is difficult to realize that the track line below will continue to operate during the construction period.
  • the purpose of the present invention is to provide an upper cover structure system applied to a track operation line and an implementation method thereof according to the above-mentioned deficiencies of the prior art.
  • the superstructure On the premise of temporary support, the superstructure will be constructed above the track operation line.
  • An upper cover structure system applied to a track operation line characterized in that: the upper cover structure system includes prefabricated frame columns, prefabricated frame beams, and prefabricated bottom plates, wherein the prefabricated frame columns and the prefabricated frame beams pass through between the prefabricated frame columns and the prefabricated frame beams.
  • the connection structure is connected and fixed, the prefabricated base plate is connected and fixed with the prefabricated frame beam through the connection structure, and a cast-in-place layer is poured above the prefabricated base plate.
  • the upper cover structural system further includes a temporary column, the temporary column is installed above the prefabricated frame column, and the temporary column and the prefabricated bottom plate are connected by a stay cable.
  • the bottom ends of the prefabricated frame beam and the prefabricated bottom plate are respectively provided with embedded nuts, and the prefabricated frame beam can be limited by connecting the prefabricated nut with the limit screw to achieve its position limit compared with the prefabricated frame column.
  • the prefabricated bottom plate can achieve its position limit compared with the prefabricated frame beam by connecting the limit screw with the embedded nut.
  • the prefabricated frame column is connected to the prefabricated frame beam by prefabricating a slot at its column head or setting a column angle code.
  • a screw rod is pre-embedded at the column head position of the prefabricated frame column, and the column angle code is connected and fixed with the prefabricated frame column through the screw rod.
  • the prefabricated frame beam is connected to the prefabricated bottom plate by prefabricating pick ears on both sides of the beam body or setting beam angle codes.
  • Screws are pre-embedded on both sides of the beam body of the prefabricated frame beam, and the beam angle code is connected and fixed with the prefabricated frame beam through the screws.
  • the prefabricated frame columns are connected to the site through cable wind ropes.
  • the prefabricated bottom plate is a prestressed hollow bottom plate.
  • implementation method involving the above-mentioned upper cover structure system applied to a track operation line, characterized in that: the implementation method comprises the following steps:
  • the prefabricated bottom plate is erected by setting beam corner yards on both sides of the beam body of the prefabricated frame beam, and the prefabricated bottom plate is supported on the prefabricated frame beam and the beam corner yards;
  • a limit screw is respectively installed at the position of the embedded nut set on the prefabricated frame beam and the prefabricated base plate, so that the two are respectively limited;
  • Fig. 1 is the elevational structure schematic diagram of the present invention
  • Fig. 2 is the A-A sectional view of Fig. 1;
  • Fig. 3 is the axonometric view of the middle column angle code of the present invention.
  • Fig. 4 is the axonometric view of the slot-type prefabricated column head in the present invention.
  • Fig. 5 is the axonometric view of the beam angle code in the present invention.
  • FIG. 6 is a schematic structural diagram of a pick-ear type prefabricated frame beam in the present invention.
  • FIG. 7 is a cross-sectional structural view taken along the line B-B of FIG. 2 .
  • the marks 1-19 in the figure are respectively: prefabricated frame column 1, prefabricated frame beam 2, column angle code 3, screw 4, cable wind rope 5, embedded nut 6, limit screw 7 , prefabricated bottom plate 8, beam angle code 9, embedded screw 10, embedded nut 11, limit screw 12, prefabricated slotted column head 13, pick ear 14, temporary column 15, reserved steel bar 16, embedded lifting ring 17, Stay cable 18, welding ring 19.
  • the upper cover structure system applied to the track operation line in this example is mainly applied to the situation where cover plates are erected above the track operation line.
  • the system breaks through the need to set up temporary supports for prefabricated bottom plates and temporary supports for prefabricated beams during the construction of traditional prefabricated structures. At the same time, it can be matched with a pre-stressed hollow prefabricated bottom plate to achieve a large span without temporary support and prevent intrusion into the track boundary.
  • the main body of the upper cover structure system applied to the track operation line in this embodiment includes a prefabricated frame column 1 , a prefabricated frame beam 2 and a prefabricated bottom plate 8 .
  • a screw rod 4 is pre-embedded at the position of the column head of the prefabricated frame column 1 , and the screw rod 4 can be connected and fixed with the column angle code 3 .
  • the structure of the column angle code 3 includes a vertical connecting plate with a connecting hole matched with the screw 4 and a horizontal supporting plate arranged above the vertical connecting plate.
  • the function of the horizontal supporting plate is to Support the prefabricated frame beam 2; in use, the screw 4 pre-buried at the column head position of the prefabricated frame column 1 can be inserted into the connecting hole of the vertical connecting plate of the column corner 3, so that the column corner 3 and the prefabricated frame column can be connected 1 is connected, so that the column angle code 3 can effectively support the prefabricated frame beam 2.
  • an oblique stiffening plate is also arranged between the vertical connecting plate and the horizontal supporting plate, so as to further improve the integrity of the vertical connecting plate and the horizontal supporting plate, thereby ensuring the prefabricated Supporting effect of frame beam 2.
  • screw rods 10 are pre-embedded on both sides of the prefabricated frame beam 2 , and the screw rods 10 can be connected and fixed with the beam angle code 9 .
  • the structure of the beam angle code 9 is similar to that of the column angle code 3, which includes a vertical connecting plate with a connecting hole matching the screw 10 and a horizontal support plate.
  • the horizontal support plate Its function is to support the prefabricated bottom plate 8, so as to build a column (prefabricated frame column 1) beam (prefabricated frame beam 2) plate (prefabricated bottom plate 8) system.
  • An embedded nut 6 is arranged at the bottom of the prefabricated frame beam 2.
  • a limit screw 7 adapted to the embedded nut 6 on site, the position limit of the prefabricated frame beam 2 can be realized to prevent the prefabricated frame beam 2 from slipping during construction. move and fall.
  • the embedded nut 6 is embedded in the bottom end of the prefabricated frame beam 2 and is located at the periphery of the column corner 3, and the limit screw 7 installed on the embedded nut 6 protrudes from the prefabricated frame beam. 2 , at this time, the prefabricated frame beam 2 is limited by the limit screw 7 compared to the prefabricated frame column 1 .
  • the design principle is to realize the limit by setting the limit structure at the bottom of the prefabricated frame beam 2 that can be adapted to the prefabricated frame column 1 or the column angle code 3 .
  • an embedded nut 11 is pre-embedded at the bottom of the prefabricated base plate 8.
  • a pre-embedded lifting ring 17 is pre-buried on the top of the prefabricated frame beam 2, and the pre-embedded lifting ring 17 can be tied with the welded lifting ring 19 on the temporary steel column 15 through the stay cable 18, so as to solve the problem of large-span prefabricated beams. Construction disturbance problem.
  • the temporary steel column 15 can be temporarily connected and fixed to its relative through the reserved steel bars 16 arranged on the column head of the prefabricated frame column 1 .
  • the prefabricated base plate 8 is connected with the prefabricated frame beam 2 through the beam angle code 9.
  • the beam angle code 9 is connected with the prefabricated frame beam 2 through the pre-embedded screw rod 10 .
  • the prefabricated frame column 1 is connected to the construction site through the cable wind rope 5 to ensure the stability of the prefabricated frame column 1 during construction.
  • the limit screw 7 is connected to the prefabricated frame beam 2 through the embedded nut 6
  • the limit rod 12 is connected to the prefabricated base plate 8 through the embedded nut 11 .
  • the temporary column 15 is connected by the reserved steel bar 16 of the prefabricated frame column 1, and the frame beam lifting ring 17 is tied with the temporary column 15 through the stay cable 18.
  • connection between the prefabricated frame column 1 and the prefabricated frame beam 2 can also be realized through the prefabricated slotted column head 13 as shown in FIG. 4 . That is, the top of the prefabricated frame column 1 is provided with a slot matching the prefabricated frame beam 2, and the prefabricated frame beam 2 can be clipped in the slot at the top of the prefabricated frame column 1, thereby realizing the quick connection and fixation of the two.
  • connection between the prefabricated frame beam 2 and the prefabricated bottom plate 8 can also be realized through the pick ears 14 as shown in FIG.
  • the picking ears 14 are cantilevered outwards, and part of the picking ears 14 supports the prefabricated bottom plate 8 together with the main body of the prefabricated frame beam 2 .

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)

Abstract

本发明涉及轨道交通上盖结构技术领域，尤其是一种应用于轨道运营线的上盖结构体系及其实施方法，其特征在于：所述上盖结构体系包括预制框架柱、预制框架梁、预制底板，其中所述预制框架柱和所述预制框架梁之间通过连接结构相连接固定，所述预制底板通过连接结构与所述预制框架梁相连接固定，所述预制底板的上方浇筑有现浇层。本发明的优点是：结构合理、功能明确、可操作性强、设计新颖等优点。

Description

一种应用于轨道运营线的上盖结构体系及其实施方法 技术领域
本发明涉及轨道交通上盖结构技术领域，尤其是一种应用于轨道运营线的上盖结构体系及其实施方法。
 背景技术
近年来随着城市的发展，城市轨道交通在早些年的地面线路影响线路两侧地块交通，割裂城市发展，需要在线路上方架设钢筋混凝土上盖，而其施工不能影响既有轨道运营，需要一种快速建造的装配式结构体系。在铁路站房中，老旧站房的改造需要建设线上候车厅，线上候车厅的建设，同样涉及在运营线上建设上盖结构的问题。
根据盖体的结构形式可以采用钢结构或者装配式混凝土结构，当采用钢结构时需要进行日常维护，包括钢结构防锈防腐，特别对于城市轨道交通，盖下的维护保养单位和盖上的使用单位并不相同，作业时协调困难。因此装配式混凝土结构在后续运营使用时有明显的优势。但装配式混凝土结构一般跨越的跨度不大，且需要设置施工临时支撑，待后浇的混凝土与预制构件形成叠合构件后才整体受力，才能拆除施工临时支撑，该施工临时支撑对线路运营产生影响，难以实现在施工期间，下方的轨道线路继续运营。
因此，既能既能快速建造，又能在建成后使用阶段不致产生过多的维护工作，还能在施工阶段不设临时支撑影响线路运营，同时能跨越较大的跨度以满足铁路限界的体系及其实施方法显得尤为重要。
 技术问题
本发明的目的是根据上述现有技术的不足，提供了一种应用于轨道运营线的上盖结构体系及其实施方法，通过预制框架柱、预制框架梁、预制底板相配合的体系实现在设施工临时支撑的前提下，于轨道运营线上方建设上盖结构。
 技术解决方案
一种应用于轨道运营线的上盖结构体系，其特征在于：所述上盖结构体系包括预制框架柱、预制框架梁、预制底板，其中所述预制框架柱和所述预制框架梁之间通过连接结构相连接固定，所述预制底板通过连接结构与所述预制框架梁相连接固定，所述预制底板的上方浇筑有现浇层。
所述上盖结构体系还包括临时立柱，所述临时立柱安装在所述预制框架柱的上方，所述临时立柱与所述预制底板之间通过斜拉索相连接。
所述预制框架梁和所述预制底板的底部两端分别设置有预埋螺母，所述预制框架梁可通过在其预埋螺母连接限位螺杆实现其相较于所述预制框架柱的限位，所述预制底板可通过在其预埋螺母连接限位螺杆实现其相较于所述预制框架梁的限位。
所述预制框架柱通过在其柱头位置预制卡槽或者设置柱角码的方式与所述预制框架梁连接。
所述预制框架柱的柱头位置预埋有螺杆，所述柱角码通过所述螺杆与所述预制框架柱相连接固定。
所述预制框架梁通过在其梁体两侧预制挑耳或者设置梁角码的方式与所述预制底板连接。
所述预制框架梁的梁体两侧位置预埋有螺杆，所述梁角码通过所述螺杆与所述预制框架梁相连接固定。
所述预制框架柱通过缆风绳与场地连接。
所述预制底板为预应力空心底板。
一种涉及上述的应用于轨道运营线的上盖结构体系的实施方法，其特征在于：所述实施方法包括以下步骤：
在线路两侧架设预制框架柱，通过在所述预制框架柱的柱头位置设置柱角码架设预制框架梁，所述预制框架梁支承在所述柱角码上；
通过在所述预制框架梁的梁体两侧位置设置梁角码的方式架设预制底板，所述预制底板支承在所述预制框架梁和所述梁角码上；
在所述预制框架梁和所述预制底板所设置的预埋螺母位置分别安装限位螺杆，使两者分别得到限位；
在所述预制框架柱的上方架设临时立柱并使所述临时立柱通过斜拉索与所述预制底板相连接，从而完成上盖结构体系架设；
在所述预制底板的上安装钢筋并浇筑现浇层，使所述预制框架柱、所述预制框架梁以及所述预制底板形成叠合构件整体受力，之后拆除临时立柱及其斜拉索。
 有益效果
结构合理、功能明确、可操作性强、设计新颖等优点。
 附图说明
图1为本发明的立面结构示意图；
图2为图1的A-A向剖面图；
图3为本发明中柱角码轴测图；
图4为本发明中卡槽式预制柱头轴测图；
图5为本发明中梁角码轴测图；
图6为本发明中挑耳式预制框架梁的结构示意图；
图7为图2的B-B向剖面结构图。
 本发明的实施方式
如图1-7所示，图中1-19标记分别表示为：预制框架柱1、预制框架梁2、柱角码3、螺杆4、缆风绳5、预埋螺母6、限位螺杆7、预制底板8、梁角码9、预埋螺杆10、预埋螺母11、限位螺杆12、预制卡槽式柱头13、挑耳14、临时立柱15、预留钢筋16、预埋吊环17、斜拉索18、焊接吊环19。
实施例：本实施例中应用于轨道运营线的上盖结构体系主要应用于轨道运营线上方架设盖板的情况，体系打破传统装配式结构施工期间需要设置预制底板临时支撑和预制梁临时支撑的方式，同时可配合采用预应力空心的预制底板，实现不设临时支撑而跨越较大跨度，防止侵入轨道限界。
具体而言，结合图1和图2所示，本实施例中应用于轨道运营线上的上盖结构体系主体包括预制框架柱1、预制框架梁2以及预制底板8。
其中，在预制框架柱1的柱头位置预埋有螺杆4，螺杆4可与柱角码3相连接固定。如图3所示，柱角码3的结构包括开设有与螺杆4相吻合适配的连接孔的竖向连接板以及设置在竖向连接板上方的水平支撑板，该水平支撑板的作用在于支撑预制框架梁2；在使用时，预埋在预制框架柱1柱头位置的螺杆4可穿设在柱角码3的竖向连接板的连接孔内，从而使柱角码3与预制框架柱1相连接，从而使柱角码3可对预制框架梁2进行有效支撑。为了保证柱角码3的支撑强度，在其竖向连接板和水平支撑板之间还设置有斜向加劲板，以使竖向连接板和水平支撑板的整体性进一步提高，从而保证对预制框架梁2的支撑效果。
如图7所示，在预制框架梁2的两侧预埋有螺杆10，螺杆10可与梁角码9相连接固定。如图5所示，梁角码9的结构与柱角码3的结构相类似，其包括开设有与螺杆10相吻合适配的连接孔的竖向连接板以及水平支撑板，该水平支撑板的作用在于支撑预制底板8，从而搭建起柱（预制框架柱1）梁（预制框架梁2）板（预制底板8）体系。
在预制框架梁2的底部设置有预埋螺母6，通过在现场安装与该预埋螺母6相适配的限位螺杆7可实现预制框架梁2的限位，防止预制框架梁2施工期间滑移而跌落。具体地，如图1所示，预埋螺母6预埋在预制框架梁2的底端且位于柱角码3的外围，安装在预埋螺母6上的限位螺杆7伸出于预制框架梁2的底面，此时预制框架梁2便通过限位螺杆7实现其相较于预制框架柱1的限位。即，设计原理是通过在预制框架梁2的底部设置可与预制框架柱1或柱角码3的相适配的限位结构实现其限位。同样地，在预制底板8的底部预埋有预埋螺母11，通过在现场安装与该预埋螺母11相适配的限位螺杆12，可以实现预制底板8相较于预制框架梁2的限位，以防止预制底板8施工期间滑移而跌落。
对于大跨度梁而言，在预制框架梁2的梁顶预埋有预埋吊环17，该预埋吊环17可通过斜拉索18与临时钢柱15上的焊接吊环19拉结，解决大跨预制梁施工扰度问题。临时钢柱15可通过设置在预制框架柱1柱头上的预留钢筋16与其相临时连接固定。
本实施例在实施时，包括如下步骤：
1）在既有轨道运营线的线路两侧分别架立预制框架柱1，预制框架梁2通过柱角码3与预制框架柱1相连接。其中，柱角码3通过预制框架柱1柱头预埋的螺杆4与其相连接。
2）预制底板8通过梁角码9与预制框架梁2相连接。其中，梁角码9通过预制框架梁2所预埋的螺杆10与其相连接。
3）预制框架柱1通过缆风绳5与施工场地连接，保证施工期间预制框架柱1的稳定。
4）限位螺杆7通过预埋螺母6与预制框架梁2连接，限位杆12通过预埋螺母11与预制底板8连接。
5）临时立柱15利用预制框架柱1的预留钢筋16连接，框架梁吊环17通过斜拉索18与临时立柱15拉结。
6）体系安装完后在预制底板8的顶面安装上部钢筋并浇筑现浇层，与预制梁板柱形成叠合构件整体受力。在拆除临时立柱15、斜拉钢索18和缆风绳5。
本实施例在具体实施时：除了采用上述实施例中的柱角码3以外，也可通过如图4所示的预制卡槽式柱头13实现预制框架柱1与预制框架梁2之间的连接，即在预制框架柱1的顶部设置与预制框架梁2相适配的卡槽，预制框架梁2可卡接在预制框架柱1顶部的卡槽内，从而实现两者的快速连接固定。
除了采用上述实施例中的梁角码9以外，也可通过如图6所示的挑耳14实现预制框架梁2和预制底板8之间的连接，即在预制框架梁2的两侧分别设置向外悬挑的挑耳14，该挑耳14部分即与预制框架梁2主体一起支撑预制底板8。

Claims (10)

  1. 一种应用于轨道运营线的上盖结构体系，其特征在于：所述上盖结构体系包括预制框架柱、预制框架梁、预制底板，其中所述预制框架柱和所述预制框架梁之间通过连接结构相连接固定，所述预制底板通过连接结构与所述预制框架梁相连接固定，所述预制底板的上方浇筑有现浇层。
  2. 根据权利要求1所述的一种应用于轨道运营线的上盖结构体系，其特征在于：所述上盖结构体系还包括临时立柱，所述临时立柱安装在所述预制框架柱的上方，所述临时立柱与所述预制底板之间通过斜拉索相连接。
  3. 根据权利要求1所述的一种应用于轨道运营线的上盖结构体系，其特征在于：所述预制框架梁和所述预制底板的底部两端分别设置有预埋螺母，所述预制框架梁可通过在其预埋螺母连接限位螺杆实现其相较于所述预制框架柱的限位，所述预制底板可通过在其预埋螺母连接限位螺杆实现其相较于所述预制框架梁的限位。
  4. 根据权利要求1所述的一种应用于轨道运营线的上盖结构体系，其特征在于：所述预制框架柱通过在其柱头位置预制卡槽或者设置柱角码的方式与所述预制框架梁连接。
  5. 根据权利要求4所述的一种应用于轨道运营线的上盖结构体系，其特征在于：所述预制框架柱的柱头位置预埋有螺杆，所述柱角码通过所述螺杆与所述预制框架柱相连接固定。
  6. 根据权利要求1所述的一种应用于轨道运营线的上盖结构体系，其特征在于：所述预制框架梁通过在其梁体两侧预制挑耳或者设置梁角码的方式与所述预制底板连接。
  7. 根据权利要求6所述的一种应用于轨道运营线的上盖结构体系，其特征在于：所述预制框架梁的梁体两侧位置预埋有螺杆，所述梁角码通过所述螺杆与所述预制框架梁相连接固定。
  8. 根据权利要求1所述的一种应用于轨道运营线的上盖结构体系，其特征在于：所述预制框架柱通过缆风绳与场地连接。
  9. 根据权利要求1所述的一种应用于轨道运营线的上盖结构体系，其特征在于：所述预制底板为预应力空心底板。
  10. 一种涉及权利要求1-9所述的应用于轨道运营线的上盖结构体系的实施方法，其特征在于：所述实施方法包括以下步骤：
    在线路两侧架设预制框架柱，通过在所述预制框架柱的柱头位置设置柱角码架设预制框架梁，所述预制框架梁支承在所述柱角码上；
    通过在所述预制框架梁的梁体两侧位置设置梁角码的方式架设预制底板，所述预制底板支承在所述预制框架梁和所述梁角码上；
    在所述预制框架梁和所述预制底板所设置的预埋螺母位置分别安装限位螺杆，使两者分别得到限位；
    在所述预制框架柱的上方架设临时立柱并使所述临时立柱通过斜拉索与所述预制底板相连接，从而完成上盖结构体系架设；
    在所述预制底板的上安装钢筋并浇筑现浇层，使所述预制框架柱、所述预制框架梁以及所述预制底板形成叠合构件整体受力，之后拆除临时立柱及其斜拉索。
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