WO2020215651A1 - Limiting guide device for steel box girder incremental launching construction and limiting construction method - Google Patents
Limiting guide device for steel box girder incremental launching construction and limiting construction method Download PDFInfo
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- WO2020215651A1 WO2020215651A1 PCT/CN2019/115004 CN2019115004W WO2020215651A1 WO 2020215651 A1 WO2020215651 A1 WO 2020215651A1 CN 2019115004 W CN2019115004 W CN 2019115004W WO 2020215651 A1 WO2020215651 A1 WO 2020215651A1
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- box girder
- steel box
- roller
- support frame
- limit guide
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
- E01D2/04—Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
Definitions
- the invention relates to a limit guide device and a limit construction method for steel box girder pushing construction, belonging to the technical field of steel structure bridge construction.
- the existing steel box girder installation methods include bracket installation, cantilever assembly and jacking installation.
- the bracket installation refers to the installation of brackets at the bridge position, and the use of ground or water lifting equipment such as tower cranes, car cranes or floating cranes
- the box girder is hoisted in place section by section. This construction scheme is simple and reliable. After the steel box girder is in place, no major adjustments are required. It is suitable for land or water environments where the site under the bridge is good and it is convenient to erect the support. Projects that require traffic opening across the line are not applicable; cantilever assembly refers to the installation of steel box girder using a bridge deck crane that can move on the steel bridge deck. Each section of steel box girder is transported under the bridge by a beam truck, etc.
- the surface crane is lifted into place. After the welding and reinforcement, the bridge surface crane moves forward to install the next section.
- This construction scheme is mostly used for cable-stayed bridges with relatively large spans and small horizontal curves.
- Bridge construction is not applicable; the steel box girder pushing method refers to the construction method in which the beam body is assembled section by section at the bridge head and longitudinally pushed with a jack to make the beam body pass through the temporary sliding bearing surface of each pier or partial support. This method is suitable for large span continuous bridges with constant cross section, especially for valleys with complex environments under the bridge and projects that require cross-line traffic.
- the limit mechanism of the jacking construction generally adopts the sliding friction form, which increases the longitudinal jacking construction resistance of the steel box girder, and needs to be equipped with a jacking cylinder with a large thrust, which not only increases the construction cost and reduces the construction efficiency.
- the technical problem to be solved by the present invention is to provide a limit guide device for steel box girder pushing construction and a limit construction method.
- a steel box girder pushing construction limit guide device is symmetrically arranged on both sides of the steel box girder. It includes a support frame, a lateral displacement fine-tuning mechanism and an upper limit guide mechanism; The displacement fine-tuning mechanism is arranged on the outside of the support frame to drive the support frame to move along the beam; the limit guide mechanism is located between the steel box girder and the support frame bracket, and each limit guide mechanism includes a roller, a roller frame and more than two lead screws The assembly, the roller is arranged on the roller frame, and the roller frame is connected to the support frame through the screw nut assembly.
- the lateral displacement fine-tuning mechanism includes a hydraulic oil cylinder and a reaction seat.
- the cylinder body of the hydraulic oil cylinder is connected with the reaction seat, and the cylinder rod of the hydraulic oil cylinder is connected with the support frame.
- the support frame includes two inclined rods, a vertical rod and a cross rod.
- One of the inclined rods, the vertical rod and the cross rod form a large triangular structure.
- a diagonal rod connects the vertical rod and the cross rod at the same time to divide the large triangular structure into two small triangular structures.
- the roller frame includes a bottom plate and two side plates arranged on the bottom plate, and the roller is connected to the two side plates through a pin.
- a method of using the steel box girder to push the construction limit guide device for the steel box girder limit construction includes the following steps:
- the structure is simple, safe and reliable: the whole is in the form of a tripod, the structure is simple and stable, safe and reliable;
- the limit guide device has the function of fine adjustment of lateral displacement, which can adapt to the pushing construction of different flat curve radii and different angles of inclined web steel box girder.
- Figure 1 is a cross-sectional view of the present invention
- Figure 2 is a partial enlarged view 1 of the present invention
- Figure 3 is a partial enlarged view 2 of the present invention.
- Figure 4 is a longitudinal layout diagram of the present invention.
- a steel box girder pushing construction limit guide device the steel box girder pushing construction limit guide device is symmetrically arranged on both sides of the steel box girder, which includes a support frame 2, a lateral displacement fine-tuning mechanism 3 and more than one Limit guide mechanism 4.
- the support frame 2 includes two diagonal rods 2-1, a vertical rod 2-2 and a cross rod 2-3, of which one diagonal rod 2-1 and the vertical rod 2-2 and the cross rod 2- 3 forms a large triangular structure, and another diagonal rod 2-1 connects the vertical rod 2-2 and the cross rod 2-3 at the same time to divide the large triangular structure into two small triangular structures.
- the lateral rigidity is improved, which can effectively resist the lateral force generated during the pushing construction of the steel box girder 1, and there are slot 2-4 and slot 2 under the crossbar 2-3. 4 can make the support frame 2 slide smoothly along the beam 6.
- the lateral displacement fine-tuning mechanism 3 is arranged on the outside of the support frame 2 to drive the support frame 2 to move along the beam;
- the lateral displacement fine-tuning mechanism 3 includes a hydraulic cylinder 3-1 and a reaction seat 3, and a reaction seat 3 -2 is welded to the beam 6 and fixed, the cylinder body of the hydraulic cylinder 3-1 is connected with the reaction seat 3, and the cylinder rod of the hydraulic cylinder 3-1 is connected with the support frame 2.
- the lateral movement of the support frame 2 is driven by the expansion and contraction of the hydraulic cylinder 3-1, so as to fine-tune the displacement of the support frame 2.
- the limit guide mechanism 4 is located on the steel box girder and the support frame bracket.
- Each limit guide mechanism 4 includes a roller 4-1, a roller frame 4-3 and two or more screw nut components.
- the roller frame includes a bottom plate. And the two side plates set on the bottom plate, the roller 4-1 is connected to the two side plates through the pin 4-2, the roller 4-1 is set on the roller frame 4-3, and the roller frame 4-3 passes through the screw 4-4 and
- the screw nut 4-5 is connected to the support frame 2.
- the steel box girder 1 generates rolling friction with the roller 4-1 during the forward push construction, which not only reduces the resistance in the push process but also acts as a lateral limit, so that the steel box girder always moves along the longitudinal movement track 5.
- the shaft 4-2 is installed on the roller frame 4-3, and the extension distance of the roller 4-1 can be fine-tuned by adjusting the position of the screw nut 4-5 to adapt to the steel box girder 1 with inclined webs of different angles.
- a method for using the steel box girder jacking construction limit guide device according to any one of claims 1 to 4 for steel box girder limit construction comprising the following steps:
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Abstract
Provided are a limiting guide device for steel box girder incremental launching construction with a rational design and high efficiency, and a limiting construction method. According to the limiting guide device for steel box girder incremental launching construction, limiting guide devices for steel box girder incremental launching construction are symmetrically arranged on two sides of a steel box girder, and comprise a support frame, a lateral displacement fine-adjustment mechanism, and one or more limiting guide mechanisms, wherein the lateral displacement fine-adjustment mechanism is arranged on an outer side of the support frame and is used for driving the support frame to move along a cross girder; and the limiting guide mechanisms are located between the steel box girder and the support frame, and each of the limiting guide mechanisms comprises a roller, a roller frame and two or more lead screw and nut assemblies, the roller being arranged on the roller frame, and the roller frame being connected to the support frame via the lead screw and nut assemblies.
Description
本发明涉及一种钢箱梁顶推施工限位导向装置及限位施工方法，属于钢结构桥梁施工技术领域。The invention relates to a limit guide device and a limit construction method for steel box girder pushing construction, belonging to the technical field of steel structure bridge construction.
现有钢箱梁安装方法有支架安装、悬臂拼装和顶推安装三种，其中支架安装是指在成桥桥位搭设支架，利用塔吊、汽车吊或浮吊等地面或水上起重设备将钢箱梁逐节吊装就位，此种施工方案简单可靠，钢箱梁就位后无需进行大的调整，适用于桥下场地良好，便于搭设支架的陆地或水上环境，但对于地面条件不允许或跨线有通车需求的工程则不适用；悬臂拼装是指利用可在钢桥面上移动的桥面吊机安装钢箱梁，每节钢箱梁通过运梁车等运输到桥下，由桥面吊机提升就位，焊接加固完毕后桥面吊机前移，安装下一节段，此种施工方案多用于跨度比较大且平曲线较小的的斜拉桥，对于小半径曲线的钢桥施工则不适用；钢箱梁顶推法指的是梁体在桥头逐段拼装，用千斤顶纵向顶推，使梁体通过各墩顶或局部支架的临时滑动支座面就位的施工方法，该方法适用于跨度较大的等截面连续桥，尤其是桥下环境复杂的山谷和有跨线通车需求的工程。The existing steel box girder installation methods include bracket installation, cantilever assembly and jacking installation. The bracket installation refers to the installation of brackets at the bridge position, and the use of ground or water lifting equipment such as tower cranes, car cranes or floating cranes The box girder is hoisted in place section by section. This construction scheme is simple and reliable. After the steel box girder is in place, no major adjustments are required. It is suitable for land or water environments where the site under the bridge is good and it is convenient to erect the support. Projects that require traffic opening across the line are not applicable; cantilever assembly refers to the installation of steel box girder using a bridge deck crane that can move on the steel bridge deck. Each section of steel box girder is transported under the bridge by a beam truck, etc. The surface crane is lifted into place. After the welding and reinforcement, the bridge surface crane moves forward to install the next section. This construction scheme is mostly used for cable-stayed bridges with relatively large spans and small horizontal curves. For steel with small radius curves Bridge construction is not applicable; the steel box girder pushing method refers to the construction method in which the beam body is assembled section by section at the bridge head and longitudinally pushed with a jack to make the beam body pass through the temporary sliding bearing surface of each pier or partial support. This method is suitable for large span continuous bridges with constant cross section, especially for valleys with complex environments under the bridge and projects that require cross-line traffic.
现有技术中顶推施工的限位机构一般采用滑动摩擦形式，增加了钢箱梁纵向的顶推施工阻力，需要配备大推力的顶推油缸，既增加了施工成本有降低的施工效率。In the prior art, the limit mechanism of the jacking construction generally adopts the sliding friction form, which increases the longitudinal jacking construction resistance of the steel box girder, and needs to be equipped with a jacking cylinder with a large thrust, which not only increases the construction cost and reduces the construction efficiency.
发明内容Summary of the invention
本发明要解决的技术问题是提供了一种钢箱梁顶推施工限位导向装置及限位施工方法。The technical problem to be solved by the present invention is to provide a limit guide device for steel box girder pushing construction and a limit construction method.
本发明为实现上述目的，通过以下技术方案实现：In order to achieve the above objectives, the present invention is achieved through the following technical solutions:
一种钢箱梁顶推施工限位导向装置，钢箱梁顶推施工限位导向装置对称设置在钢箱梁两侧，其包括支撑架、横向位移微调机构和一个以上限位导向机构；横向位移微调机构设置在支撑架外侧，用于驱动支撑架沿横梁移动；限位导向机构位于钢箱梁与支撑架支架，每个限位导向机构包括滚筒、滚筒架和两个以上丝杠丝母组件，滚筒设置在滚筒架上，滚筒架通过丝杠丝母组件连接在支撑架上。A steel box girder pushing construction limit guide device. The steel box girder pushing construction limit guide device is symmetrically arranged on both sides of the steel box girder. It includes a support frame, a lateral displacement fine-tuning mechanism and an upper limit guide mechanism; The displacement fine-tuning mechanism is arranged on the outside of the support frame to drive the support frame to move along the beam; the limit guide mechanism is located between the steel box girder and the support frame bracket, and each limit guide mechanism includes a roller, a roller frame and more than two lead screws The assembly, the roller is arranged on the roller frame, and the roller frame is connected to the support frame through the screw nut assembly.
所述钢箱梁顶推施工限位导向装置优选方案，横向位移微调机构包括液压油缸和反力座，液压油缸的缸体与反力座连接，液压油缸的缸杆与支撑架连接。In the preferred solution of the steel box girder jacking construction limit guide device, the lateral displacement fine-tuning mechanism includes a hydraulic oil cylinder and a reaction seat. The cylinder body of the hydraulic oil cylinder is connected with the reaction seat, and the cylinder rod of the hydraulic oil cylinder is connected with the support frame.
所述钢箱梁顶推施工限位导向装置优选方案，支撑架包括两根斜杆、一根立杆和一 根横杆，其中一根斜杆与立杆及横杆构成一个大三角形结构，另外一根斜杆同时连接立杆和横杆将大三角形结构分成两个小三角形结构。In the preferred solution of the steel box girder jacking construction limit guide device, the support frame includes two inclined rods, a vertical rod and a cross rod. One of the inclined rods, the vertical rod and the cross rod form a large triangular structure. A diagonal rod connects the vertical rod and the cross rod at the same time to divide the large triangular structure into two small triangular structures.
所述钢箱梁顶推施工限位导向装置优选方案，滚筒架包括底板和设置在底板上的两侧板，滚筒通过销轴连接两侧板。In the preferred solution of the steel box girder pushing construction limit guide device, the roller frame includes a bottom plate and two side plates arranged on the bottom plate, and the roller is connected to the two side plates through a pin.
一种利用所述钢箱梁顶推施工限位导向装置进行钢箱梁限位施工的方法，包括以下步骤：A method of using the steel box girder to push the construction limit guide device for the steel box girder limit construction includes the following steps:
1)安装支架、铺设横梁及纵移轨道；1) Install brackets, lay beams and longitudinally move tracks;
2)将支撑架组装好并安装限位导向机构后整体安装在横梁上，在横梁上安装横向位移微调机构，通过丝杠丝母组件微调滚筒伸出的距离，以适应不同角度斜腹板的钢箱梁；2) Assemble the support frame and install the limit guide mechanism and install it on the beam as a whole, install the lateral displacement fine-tuning mechanism on the beam, and fine-tune the extension distance of the drum through the screw nut assembly to adapt to the different angles of the inclined web. Steel box girder
3)调节横向位移微调机构，使限位导向机构顺桥向按钢箱梁曲线布置；3) Adjust the lateral displacement fine-tuning mechanism so that the limit guide mechanism is arranged in the curve of the steel box girder along the bridge;
4)将预制钢箱梁运输到工地；4) Transport the prefab steel box girder to the construction site;
5)利用地面起重设备将钢箱梁放置在纵移轨道上；5) Use ground lifting equipment to place the steel box girder on the longitudinal moving track;
6)顶推钢箱梁纵移时，滚筒与钢箱梁接触，滚筒转动，从而使钢箱梁始终沿纵移轨道移动，直到将钢箱梁顶推到位。6) When the pushing steel box girder moves longitudinally, the roller contacts the steel box girder, and the roller rotates, so that the steel box girder always moves along the longitudinal movement track until the steel box girder is pushed into place.
本发明的优点在于：The advantages of the present invention are:
1、结构简单、安全可靠：整体为三角架形式，结构简单稳定、安全可靠；1. The structure is simple, safe and reliable: the whole is in the form of a tripod, the structure is simple and stable, safe and reliable;
2、施工效率高：限位导向机构导向过程由传统的滑动摩擦改为滚动摩擦，减小了顶推过程的施工阻力，提高了钢箱梁顶推安装的施工效率；2. High construction efficiency: The guiding process of the limit guide mechanism is changed from traditional sliding friction to rolling friction, which reduces the construction resistance of the jacking process and improves the construction efficiency of the steel box girder jacking installation;
3、经济性好：减轻了支架自重，与传统的限位方案相比节约了经济成本；3. Good economy: the weight of the support is reduced, and the economic cost is saved compared with the traditional limit solution;
4、适应性高：该限位导向装置具备横向位移微调功能，可以适应不同平曲线半径和不同角度斜腹板钢箱梁的顶推施工。4. High adaptability: The limit guide device has the function of fine adjustment of lateral displacement, which can adapt to the pushing construction of different flat curve radii and different angles of inclined web steel box girder.
附图用来提供对本发明的进一步理解，并且构成说明书的一部分，与本发明的实施例一起用于解释本发明，并不构成对本发明的限制。The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the specification, together with the embodiments of the present invention, are used to explain the present invention, and do not constitute a limitation to the present invention.
图1为本发明横断面图；Figure 1 is a cross-sectional view of the present invention;
图2为本发明局部放大图一；Figure 2 is a partial enlarged view 1 of the present invention;
图3为本发明局部放大图二；Figure 3 is a partial enlarged view 2 of the present invention;
图4为本发明纵向布置图；Figure 4 is a longitudinal layout diagram of the present invention;
其中，1.钢箱梁；2.支撑架；3.横向位移微调机构；4.限位导向机构；5.纵移轨道；6.底部横梁；7.支架；2-1.斜杆；2-2.立杆；2-3.横杆；2-4.卡槽；3-1.液压油缸；3-2.反力座；4-1.滚 筒；4-2.滚筒销轴；4-3.滚筒架；4-4.丝杆；4-5丝杆螺母。Among them, 1. Steel box girder; 2. Support frame; 3. Lateral displacement fine-tuning mechanism; 4. Limit guide mechanism; 5. Longitudinal movement track; 6. Bottom beam; 7. Bracket; 2-1. Inclined bar; 2. -2. Vertical pole; 2-3. Cross bar; 2-4. Card slot; 3-1. Hydraulic cylinder; 3-2. Reaction seat; 4-1. Roller; 4-2. Roller pin; 4 -3. Roller frame; 4-4. Screw rod; 4-5 screw rod nut.
以下结合附图对本发明的优选实施例进行说明，应当理解，此处所描述的优选实施例仅用于说明和解释本发明，并不用于限定本发明。The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not used to limit the present invention.
参考图1，一种钢箱梁顶推施工限位导向装置，钢箱梁顶推施工限位导向装置对称设置在钢箱梁两侧，其包括支撑架2、横向位移微调机构3和一个以上限位导向机构4。Referring to Figure 1, a steel box girder pushing construction limit guide device, the steel box girder pushing construction limit guide device is symmetrically arranged on both sides of the steel box girder, which includes a support frame 2, a lateral displacement fine-tuning mechanism 3 and more than one Limit guide mechanism 4.
参考图2，支撑架2包括两根斜杆2-1、一根立杆2-2和一根横杆2-3，其中一根斜杆2-1与立杆2-2及横杆2-3构成一个大三角形结构，另外一根斜杆2-1同时连接立杆2-2和横杆2-3将大三角形结构分成两个小三角形结构。在保持自身结构稳定性的同时提高了侧向刚度，可以有效抵抗钢箱梁1顶推施工中产生的侧向力，在横杆2-3下方设计有卡槽2-4，卡槽2-4可以使支撑架2平稳的沿横梁6滑动。Referring to Figure 2, the support frame 2 includes two diagonal rods 2-1, a vertical rod 2-2 and a cross rod 2-3, of which one diagonal rod 2-1 and the vertical rod 2-2 and the cross rod 2- 3 forms a large triangular structure, and another diagonal rod 2-1 connects the vertical rod 2-2 and the cross rod 2-3 at the same time to divide the large triangular structure into two small triangular structures. While maintaining the stability of its own structure, the lateral rigidity is improved, which can effectively resist the lateral force generated during the pushing construction of the steel box girder 1, and there are slot 2-4 and slot 2 under the crossbar 2-3. 4 can make the support frame 2 slide smoothly along the beam 6.
参考图1及图2，横向位移微调机构3设置在支撑架2外侧，用于驱动支撑架2沿横梁移动；横向位移微调机构3包括液压油缸3-1和反力座3，反力座3-2焊接在横梁6上固定不动，液压油缸3-1的缸体与反力座3连接，液压油缸3-1的缸杆与支撑架2连接。通过液压油缸3-1的伸缩带动支撑架2的横向移动，进而起到对支撑架2位移进行微调的作用。1 and 2, the lateral displacement fine-tuning mechanism 3 is arranged on the outside of the support frame 2 to drive the support frame 2 to move along the beam; the lateral displacement fine-tuning mechanism 3 includes a hydraulic cylinder 3-1 and a reaction seat 3, and a reaction seat 3 -2 is welded to the beam 6 and fixed, the cylinder body of the hydraulic cylinder 3-1 is connected with the reaction seat 3, and the cylinder rod of the hydraulic cylinder 3-1 is connected with the support frame 2. The lateral movement of the support frame 2 is driven by the expansion and contraction of the hydraulic cylinder 3-1, so as to fine-tune the displacement of the support frame 2.
参考图3，限位导向机构4位于钢箱梁与支撑架支架，每个限位导向机构4包括滚筒4-1、滚筒架4-3和两个以上丝杠丝母组件，滚筒架包括底板和设置在底板上的两侧板，滚筒4-1通过销轴4-2连接两侧板，滚筒4-1设置在滚筒架4-3上，滚筒架4-3通过丝杆4-4和丝杆螺母4-5连接在支撑架2上。钢箱梁1向前顶推施工时与滚筒4-1产生滚动摩擦，既减小了顶推过程的阻力又起到了横向限位作用，使钢箱梁始终沿纵移轨道5移动，滚筒销轴4-2安装在滚筒架4-3上，调节丝杆螺母4-5的位置可以微调滚筒4-1的伸出的距离，以适应不同角度斜腹板的钢箱梁1。Referring to Figure 3, the limit guide mechanism 4 is located on the steel box girder and the support frame bracket. Each limit guide mechanism 4 includes a roller 4-1, a roller frame 4-3 and two or more screw nut components. The roller frame includes a bottom plate. And the two side plates set on the bottom plate, the roller 4-1 is connected to the two side plates through the pin 4-2, the roller 4-1 is set on the roller frame 4-3, and the roller frame 4-3 passes through the screw 4-4 and The screw nut 4-5 is connected to the support frame 2. The steel box girder 1 generates rolling friction with the roller 4-1 during the forward push construction, which not only reduces the resistance in the push process but also acts as a lateral limit, so that the steel box girder always moves along the longitudinal movement track 5. The roller pin The shaft 4-2 is installed on the roller frame 4-3, and the extension distance of the roller 4-1 can be fine-tuned by adjusting the position of the screw nut 4-5 to adapt to the steel box girder 1 with inclined webs of different angles.
一种利用权利要求1至4任一项所述钢箱梁顶推施工限位导向装置进行钢箱梁限位施工的方法，包括以下步骤：A method for using the steel box girder jacking construction limit guide device according to any one of claims 1 to 4 for steel box girder limit construction, comprising the following steps:
1)安装支架7、铺设横梁6及纵移轨道5；1) Mounting bracket 7, laying beam 6 and longitudinal moving track 5;
2)将支撑架2组装好并安装限位导向机构4后整体安装在横梁6上，在横梁6上安装横向位移微调机构3，通过丝杠丝母组件微调滚筒4-1伸出的距离，以适应不同角度斜腹板的钢箱梁1；2) Assemble the support frame 2 and install the limit guide mechanism 4 and then install it on the beam 6 as a whole, install the lateral displacement fine-tuning mechanism 3 on the beam 6, and fine-tune the extension distance of the drum 4-1 through the screw nut assembly, To adapt to steel box girder with inclined webs of different angles 1;
3)调节横向位移微调机构3，使限位导向机构顺桥向按钢箱梁1曲线布置；3) Adjust the lateral displacement fine-tuning mechanism 3, so that the limit guide mechanism is arranged along the bridge direction according to the curve of the steel box girder 1;
4)将预制钢箱梁1运输到工地；4) Transport the prefab steel box girder 1 to the construction site;
5)利用地面起重设备将钢箱梁1放置在纵移轨道5上；5) Use ground lifting equipment to place the steel box girder 1 on the longitudinal moving track 5;
6)顶推钢箱梁1纵移时，滚筒4-1与钢箱梁1接触，滚筒4-1转动，从而使钢箱梁1始终沿纵移轨道5移动，直到将钢箱梁1顶推到位。6) When the pushing steel box girder 1 moves longitudinally, the drum 4-1 contacts the steel box girder 1, and the drum 4-1 rotates, so that the steel box girder 1 always moves along the longitudinal movement track 5 until the steel box girder 1 is topped. Push it into place.
最后应说明的是：以上所述仅为本发明的优选实施例而已，并不用于限制本发明，尽管参照前述实施例对本发明进行了详细的说明，对于本领域的技术人员来说，其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, it is still for those skilled in the art. The technical solutions described in the foregoing embodiments may be modified, or some of the technical features may be equivalently replaced. Any modification, equivalent replacement, improvement, etc., made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
- 一种钢箱梁顶推施工限位导向装置，其特征在于：钢箱梁顶推施工限位导向装置对称设置在钢箱梁两侧，其包括支撑架(2)、横向位移微调机构(3)和一个以上限位导向机构(4)；横向位移微调机构(3)，设置在支撑架(2)外侧，用于驱动支撑架(2)沿横梁移动；限位导向机构(4)位于钢箱梁与支撑架支架，每个限位导向机构(4)包括滚筒(4-1)、滚筒架(4-3)和两个以上丝杠丝母组件，滚筒(4-1)设置在滚筒架(4-3)上，滚筒架(4-3)通过丝杠丝母组件连接在支撑架(2)上。A steel box girder pushing construction limit guide device is characterized in that: the steel box girder pushing construction limit guide device is symmetrically arranged on both sides of the steel box girder, and it includes a support frame (2) and a lateral displacement fine-tuning mechanism (3). ) And an upper limit guide mechanism (4); lateral displacement fine adjustment mechanism (3), arranged on the outside of the support frame (2), used to drive the support frame (2) to move along the beam; the limit guide mechanism (4) is located in the steel Box girder and support frame bracket, each limit guide mechanism (4) includes a roller (4-1), a roller frame (4-3) and two or more screw nut components, the roller (4-1) is set on the roller On the frame (4-3), the roller frame (4-3) is connected to the support frame (2) through a screw nut assembly.
- 根据权利要求1所述钢箱梁顶推施工限位导向装置，其特征在于：横向位移微调机构(3)包括液压油缸(3-1)和反力座(3)，液压油缸(3-1)的缸体与反力座(3)连接，液压油缸(3-1)的缸杆与支撑架(2)连接。The steel box girder pushing construction limit guide device according to claim 1, characterized in that: the lateral displacement fine-tuning mechanism (3) includes a hydraulic cylinder (3-1) and a reaction seat (3), and the hydraulic cylinder (3-1) The cylinder of) is connected with the reaction seat (3), and the cylinder rod of the hydraulic oil cylinder (3-1) is connected with the support frame (2).
- 根据权利要求1所述钢箱梁顶推施工限位导向装置，其特征在于：支撑架(2)包括两根斜杆(2-1)、一根立杆(2-2)和一根横杆(2-3)，其中一根斜杆(2-1)与立杆(2-2)及横杆(2-3)构成一个大三角形结构，另外一根斜杆(2-1)同时连接立杆(2-2)和横杆(2-3)将大三角形结构分成两个小三角形结构。The steel box girder pushing construction limit guide device according to claim 1, characterized in that: the support frame (2) includes two inclined rods (2-1), a vertical rod (2-2) and a cross rod (2-3), one of the diagonal rods (2-1), the vertical rod (2-2) and the cross rod (2-3) form a large triangular structure, and the other diagonal rod (2-1) is connected at the same time The vertical rod (2-2) and the cross rod (2-3) divide the large triangular structure into two small triangular structures.
- 根据权利要求2所述钢箱梁顶推施工限位导向装置，其特征在于：滚筒架包括底板和设置在底板上的两侧板，滚筒(4-1)通过销轴(4-2)连接两侧板。The steel box girder pushing construction limit guide device according to claim 2, characterized in that: the roller frame includes a bottom plate and two side plates arranged on the bottom plate, and the roller (4-1) is connected by a pin (4-2) Both sides panels.
- 一种利用权利要求1至4任一项所述钢箱梁顶推施工限位导向装置进行钢箱梁顶推施工的方法，其特征在于包括以下步骤：A method for carrying out steel box girder jacking construction using the steel box girder jacking construction limit guide device according to any one of claims 1 to 4, characterized in that it comprises the following steps:1)安装支架(7)、铺设横梁(6)及纵移轨道(5)；1) Mounting brackets (7), laying beams (6) and longitudinal moving rails (5);2)将支撑架(2)组装好并安装限位导向机构(4)后整体安装在横梁(6)上，在横梁(6)上安装横向位移微调机构(3)，通过丝杠丝母组件微调滚筒(4-1)伸出的距离，以适应不同角度斜腹板的钢箱梁(1)；2) Assemble the support frame (2) and install the limit guide mechanism (4), then install it on the beam (6) as a whole, install the lateral displacement fine-tuning mechanism (3) on the beam (6), and pass the screw nut assembly Fine-tune the extension distance of the roller (4-1) to adapt to the steel box girder (1) with different angles of inclined webs;3)调节横向位移微调机构(3)，使限位导向机构顺桥向按钢箱梁(1)曲线布置；3) Adjust the lateral displacement fine-tuning mechanism (3), so that the limit guide mechanism is arranged in the curve of the steel box girder (1) along the bridge;4)将预制钢箱梁(1)运输到工地；4) Transport the prefabricated steel box girder (1) to the construction site;5)利用地面起重设备将钢箱梁(1)放置在纵移轨道(5)上；5) Use ground lifting equipment to place the steel box girder (1) on the longitudinal moving track (5);6)顶推钢箱梁(1)纵移时，滚筒(4-1)与钢箱梁(1)接触，滚筒(4-1)转动，从而使钢箱梁(1)始终沿纵移轨道(5)移动，直到将钢箱梁(1)顶推到位。6) When the pushing steel box girder (1) moves longitudinally, the roller (4-1) contacts the steel box girder (1), and the roller (4-1) rotates, so that the steel box girder (1) always moves along the longitudinal track (5) Move until the steel box girder (1) is pushed into place.
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| CN110424276A (en) * | 2019-08-30 | 2019-11-08 | 山东省路桥集团有限公司 | Hyperbolic steel box beam two-way pushing construction method based on BIM technology |
| CN111169805A (en) * | 2019-10-18 | 2020-05-19 | 绍兴市城投建筑工业化制造有限公司 | Supplementary bent cap is stacked prevents heeling device |
| CN112281671A (en) * | 2020-11-03 | 2021-01-29 | 龙建路桥股份有限公司 | Steel box girder pushing construction limiting and guiding device |
| CN114572829B (en) * | 2022-03-02 | 2023-01-06 | 振天建设集团有限公司 | Hoisting positioning auxiliary device and method |
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