WO2021114689A1 - Construction method for traffic gate in bridge road flyover construction - Google Patents
Construction method for traffic gate in bridge road flyover construction Download PDFInfo
- Publication number
- WO2021114689A1 WO2021114689A1 PCT/CN2020/106033 CN2020106033W WO2021114689A1 WO 2021114689 A1 WO2021114689 A1 WO 2021114689A1 CN 2020106033 W CN2020106033 W CN 2020106033W WO 2021114689 A1 WO2021114689 A1 WO 2021114689A1
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- inclined portion
- support
- upper support
- slider
- screw
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C1/00—Design or layout of roads, e.g. for noise abatement, for gas absorption
- E01C1/002—Design or lay-out of roads, e.g. street systems, cross-sections ; Design for noise abatement, e.g. sunken road
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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
Definitions
- the invention relates to the field of construction engineering, in particular to a construction method of a traffic gate in the cross-line construction of bridges and roads.
- the common construction method is to erect a steel structure temporary traffic portal above the original road.
- the steel structure temporary traffic doorway includes supporting steel pipes and longitudinal beams welded to the supporting steel pipes, I-beams, and formwork.
- the existing construction method requires the longitudinal beams and the supporting steel pipes to be welded, which is achieved by cutting the supporting steel pipes after the construction is completed. To support the separation of steel pipes and longitudinal beams, this removal method has the shortcomings of long removal cycle and waste of steel pipes.
- the upper and lower ends of the left and right sliders are set with sharp angle structures, which cannot be placed on a plane smoothly.
- the screw is worn, it is necessary to hold or hold the slider by hand to wear it.
- the set operation brings inconvenience.
- the object of the present invention is to provide a construction method that not only facilitates the dismantling operation, but also saves the traffic gate opening in the construction of bridge roads supporting steel pipes.
- the present invention provides a method for constructing a traffic doorway in bridge road cross-line construction, which includes an installation step.
- the installation step includes: installing a number of supporting steel pipes on both sides of the road; installing a drop device on the supporting steel pipes,
- the unloading device includes an upper support, a lower support, a left slide, a right slide, a screw and two nuts.
- the upper support is located above the lower support, and the left and right slides are located on both sides of the lower support.
- the upper support is provided with a first inclined part and a second inclined part, the first inclined part and the second inclined part are inclined from the top to the bottom from the two sides of the upper support to the middle of the support, and the lower support is provided with There are a third inclined part and a fourth inclined part.
- the third inclined part and the fourth inclined part are inclined from the two sides of the upper support to the middle of the support from the bottom to the top.
- the left slider is provided with a fifth inclined part and a second inclined part.
- the fifth inclined part is arranged parallel to and adjacent to the first inclined part
- the sixth inclined part is arranged parallel to and adjacent to the third inclined part
- the first flat part and the second flat Are partially set on the end surfaces of the upper and lower ends of the left slider
- the first plane portion and the second plane portion are respectively arranged in parallel with the bottom wall of the lower support
- the right slider is provided with a seventh inclined portion, an eighth inclined portion, and a first
- the three-plane part and the fourth flat part, the seventh inclined part and the second inclined part are arranged in parallel and adjacent to each other
- the eighth inclined part and the fourth inclined part are arranged in parallel and adjacent to each other
- the third and fourth flat parts are arranged on the right slide
- the third plane part and the fourth plane part are respectively arranged in parallel with the bottom wall of the lower support.
- the screw penetrates the left and right sliders, and the axial direction of the screw is parallel to the bottom wall of the lower support.
- the nut is set on the screw, the left slider and the right slider are located between the two nuts; adjust the preset height of the upper support and install the longitudinal beam on the upper support, the longitudinal beam is set on the support steel pipe on the same side of the road Install the beam on the longitudinal beams, which are set on the longitudinal beams on both sides of the road; lay the formwork on the beams and pour concrete.
- a further solution is that after the installation step is performed, the removal step is also performed including: rotating the nut to move to the end of the screw; controlling the left slider to move along the third inclined part to the end of the screw, and at the same time controlling the right slider to move along the first
- the four inclined parts move to the end of the screw to drive the upper support to move down, so that the upper support is separated from the longitudinal beam; the supporting steel pipe, the longitudinal beam and the formwork are removed to separate the formwork from the concrete.
- the unloading device further includes two supporting parts, the two supporting parts are located on both sides of the screw axis, and the supporting part is located between the first inclined part and the second inclined part.
- top wall of the support part is higher than the height of the screw in the horizontal direction and lower than the lowest position of the fifth inclined part and the lowest position of the seventh inclined part.
- top wall of the support part is arranged parallel to the bottom wall of the upper support.
- a further solution is that when the support part is in contact with the upper support, the upper support is separated from the left and right sliders; when the upper support is adjacent to the left and right sliders, the upper support is separated from the support .
- a further solution is that an anti-skid pad is provided on the top wall of the support part.
- a screw rod that penetrates the left and right sliders at the same time is arranged, and nuts are arranged at both ends of the screw, and the left and right sliders are pushed to move relatively close by rotating the nuts, thereby pushing the upper support to move vertically upwards.
- It is used to support the longitudinal beams to facilitate the installation of beams, formwork and concrete pouring on the longitudinal beams; after the concrete construction is completed for a certain period of time, the door opening needs to be removed.
- the nut is rotated in the opposite direction and the left and right sliders are moved away from each other.
- the upper support moves downward under the action of gravity, so that the upper support is separated from the longitudinal beam.
- the unloading device of the present invention is installed between the supporting steel pipe and the longitudinal beam, which not only facilitates and quickly realizes the separation of the support steel pipe and the longitudinal beam, saves time and improves efficiency, but also avoids cutting the support steel pipe, ensures the integrity of the support steel pipe, and saves materials.
- the upper and lower ends of the left slider and the right slider of the present invention are provided with flat surfaces. On the one hand, when the screw is threaded, the flat surface can be adjacent to the top wall of the supporting steel pipe, so that both the left slider and the right slider can It is placed steadily on the left and right sides of the lower support, and the screw threading operation can be completed without the need to hold the slider.
- the upper and lower ends of the slider are provided with flat parts, and the inclined part is located on the side of the flat part.
- the inclined part is compressed by the external force and has a tendency to deform.
- the arrangement of the flat part can strengthen the strength of the slider and reduce the probability of deformation.
- Fig. 1 is a structural diagram of the first embodiment of the unloading device of the present invention when it is used to support a longitudinal beam.
- Fig. 2 is an exploded view of the structure of the first embodiment of the unloading device according to the present invention when the screw is threaded.
- Fig. 3 is a structural diagram of a second embodiment of the unloading device of the present invention.
- Figure 4 is a flow chart of the installation steps in the construction method of the present invention.
- the unloading device of this embodiment includes an upper support 1, a lower support 2, a left slider 3, a right slider 4, a screw rod 5 and two nuts 6,
- the upper support 1 is located on the lower support Above the base 2, the left slider 3 and the right slider 4 are located on both sides of the lower support 2.
- Both the left slider 3 and the right slider 4 are provided with through holes, so that the screw 5 penetrates the left slider 3 and the right slider Block 4, the axial direction of the screw 5 is parallel to the bottom wall of the lower support 2, and the nut 6 is threadedly connected to the end of the screw 5, so that the left slider 3 and the right slider 4 are located between the two nuts 6, the nut 6
- the end faces of are adjacent to the side wall of the left slider 3 and the side wall of the right slider 4, respectively.
- the upper support 1 is set as an inverted isosceles trapezoid structure.
- the left and right sides of the upper support 1 are provided with a first inclined portion 11 and a second inclined portion 12, and the first inclined portion 11 and the second inclined portion 12 are arranged from above.
- the bottom is inclined from the two sides of the upper support 1 to the middle of the upper support 1.
- the upper support 1 is formed by welding a surrounding third frame 13 and two third baffles 14.
- the third baffles 14 are sealed on the front and rear ends of the third frame 13, so that the upper support 1 is hollow.
- the third baffle 14 is recessed in the third frame 13, so that a step is formed between the side wall of the third baffle 14 and the end surface of the third frame 13. When the third baffle 14 is welded, the welding head is along the edge of the step Perform welding.
- the lower support 2 is set in an isosceles trapezoid structure.
- the left and right sides of the lower support 2 are provided with a third inclined portion 21 and a fourth inclined portion 22.
- the third inclined portion 21 and the fourth inclined portion 22 are from bottom to top.
- the two sides of the support 2 are inclined downward in the direction of the middle of the support 2.
- the lower support 2 is formed by welding a surrounding fourth frame 23 and two fourth baffles 24.
- the fourth baffles 24 are sealed on the front and rear ends of the fourth frame 23, so that the lower support 2 is hollow.
- the fourth baffle 24 is recessed in the fourth frame 23, so that a step is formed between the side wall of the fourth baffle 24 and the end surface of the fourth frame 23. When the fourth baffle 24 is welded, the welding head is along the edge of the step Perform welding.
- the cross section of the left slider 3 is set as a combination of a trapezoid and a rectangle.
- the upper end of the left slider 3 is provided with a fifth inclined portion 31 and a first flat portion 33
- the lower end of the right slider 4 is provided with a sixth inclined portion 32 and The second plane 34.
- the fifth inclined portion 31 and the sixth inclined portion 32 correspond up and down
- the fifth inclined portion 31 is arranged parallel to and adjacent to the first inclined portion 11
- the sixth inclined portion 32 is arranged parallel to and adjacent to the third inclined portion 21.
- the first flat portion 33 and the second flat portion 34 correspond up and down
- the first flat portion 33 and the second flat portion 34 are respectively arranged in parallel with the bottom wall of the lower support 2.
- the left slider 3 is formed by welding an enclosing first frame 35 and two first baffles 36.
- the first baffles 36 are sealed on the front and rear ends of the first frame 35, so that the left slider 3 is hollow.
- the first baffle 36 is recessed in the first frame 35, so that a step is formed between the side wall of the first baffle 36 and the end surface of the first frame 35. When the first baffle 36 is welded, the welding head is along the edge of the step. Perform welding.
- the cross section of the right slider 4 is a combination of a trapezoid and a rectangle.
- the upper end of the right slider 4 is provided with a seventh inclined portion 41 and a third flat portion 43
- the lower end of the right slider 4 is provided with an eighth inclined portion 42 and The fourth plane 44.
- the seventh inclined portion 41 and the eighth inclined portion 42 correspond up and down
- the seventh inclined portion 41 is arranged parallel to and adjacent to the second inclined portion 12
- the eighth inclined portion 42 is arranged parallel to and adjacent to the fourth inclined portion 22.
- the third flat part 43 and the fourth flat part 44 correspond up and down
- the third flat part 43 and the fourth flat part 44 are respectively arranged in parallel with the bottom wall of the lower support 2.
- the right slider 4 is formed by welding the enclosing second frame 45 and two second baffles 46, and the second sealing is on the front and rear ends of the second frame 45, so that the right slider 4 forms a hollow closed structure .
- the second baffle 46 is recessed in the second frame 45, so that a step is formed between the side wall of the second baffle 46 and the end surface of the second frame 45. When the second baffle 46 is welded, the welding head is along the edge of the step Perform welding.
- Both the left slider 3 and the right slider 4 are welded by high-strength steel plates. They have a certain weight.
- the left slider 3 and the right slider 4 can be placed on a flat surface smoothly. , That is, the second plane portion 34 and the fourth plane portion 44 are adjacent to the plane. At this time, hold one end of the screw 5, and then pass the other end of the screw 5 through the through holes of the left slider 3 and the right slider 4, and then Nuts 6 are installed on both ends of the screw 5 to complete the sleeve operation.
- the left slider 3 and the right slider 4 are placed on the left and right sides of the lower support 2, and the third inclined portion 21 is adjacent to the sixth inclined portion 32, and the fourth inclined portion 22 and the eighth inclined portion 42 are adjacent to each other. Abut, and then install the upper support 1 between the left slider 3 and the right slider 4, and make the fifth inclined portion 31 abut the first inclined portion 11, and the seventh inclined portion 41 abuts the second inclined portion 12 . At this time, the left slider 3 and the right slider 4 are moved closer to each other by rotating the nut 6 to push the upper support 1 up to a preset height. The longitudinal beam can be installed on the upper support 1 at this time.
- the lower support 2 of this embodiment is provided with two supporting parts 37, and the two supporting parts 37 are located on both sides of the screw 5 in the axial direction.
- the supporting portion 37 is located between the first inclined portion 11 and the second inclined portion 12.
- the top wall of the supporting portion 37 is higher than the height of the screw 5 in the horizontal direction, and is lower than the lowest position of the fifth inclined portion 31 and the seventh The lowest position of the inclined portion 41.
- the lowest position refers to the height position of the fifth inclined portion 31 when the second flat portion 34 of the left slider 3 and the bottom wall of the lower support 2 are in the same plane, or when the fourth When the flat portion 44 and the bottom wall of the lower support 2 are in the same plane, the seventh inclined portion 41 is at a height position.
- the top wall of the supporting portion 37 is arranged in parallel with the bottom wall of the upper support 1 for abutting against the upper support 1. When the support portion 37 abuts the upper support 1, the upper support 1 separates from the left slider 3 and the right slider 4; when the upper support 1 abuts the left slider 3 and the right slider 4, the upper support 1 is separated from the supporting portion 37.
- An anti-skid pad is provided on the top wall of the support portion 37 to prevent the upper support 1 and the support portion 37 from being misaligned when abutting, causing the upper support 1 and the support portion 37 to separate.
- the construction method of the traffic gate opening in the bridge road crossing construction in this embodiment includes installation steps and dismantling steps.
- step S1 perform step S1 to install several supporting steel pipes on both sides of the road.
- step S2 is executed to install a drop device on each support steel pipe, and the drop device is the drop device in the above-mentioned embodiment.
- step S3 is performed to adjust the preset height of the upper support in the unloading device and install the longitudinal beam on the upper support, and the longitudinal beam is set on the supporting steel pipe on the same side of the road.
- Adjusting the preset height of the upper support in the unloading device specifically includes: rotating two nuts so that the two nuts move relatively closely along the axial direction of the screw, and then push the left and right sliders to move relatively close, and the left and right sliders move closer together. The right slider pushes the upper support to move up to the preset height.
- step S4 is executed to install the cross beams on the longitudinal beams, and the cross beams are arranged on the longitudinal beams on both sides of the road.
- step S5 to lay the formwork on the beam and pour concrete.
- the removal steps include:
- the left slider is controlled to move along the third inclined portion to the end of the screw, while the right slider is controlled to move along the fourth inclined portion to the end of the screw, driving the upper support to move downward, so that the upper support is separated from the longitudinal beam.
- the invention is a construction method of a traffic door opening in the bridge road cross-line construction, which can be applied to the bridge road cross-line construction. Because the present invention provides the unloading device between the supporting steel pipe and the longitudinal beam, the upper support of the unloading device is used to support the longitudinal beam when the upper support is at a higher position, and when the upper support is at the lower position, the upper support and The rapid separation of the longitudinal beams saves time and improves the efficiency of construction.
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Abstract
A construction method for a traffic gate in bridge road flyover construction, comprising installation steps and dismantling steps, the installation steps comprising: installing a plurality of supporting steel pipes on two sides of a road; installing release apparatuses on the supporting steel pipes, the release apparatuses comprising an upper base (1) able to move up and down; adjusting a pre-set height of the upper bases (1) and installing longitudinal beams on the upper bases (1), the longitudinal beams being arranged on the supporting steel pipes on the same side of the road; installing cross beams on the longitudinal beams, the cross beams being arranged on the longitudinal beams on the two sides of the road; and arranging a form on the cross beams and pouring concrete.
Description
本发明涉及建筑工程领域,具体是涉及桥梁道路跨线建设中交通门洞的施工方法。The invention relates to the field of construction engineering, in particular to a construction method of a traffic gate in the cross-line construction of bridges and roads.
随着我国运输道路网不断完善,各种桥梁道路交叉纵横,在交叉施工时,往往需要跨越既有道路。施工时既要保证新建道路能如期完工,又要保证原有道路的正常运营,常有的施工方法是在原有道路上方架设钢结构临时交通式门洞。钢结构临时交通式门洞包括支撑钢管和焊接在支撑钢管上的纵梁、工字钢和模板等,现有的施工方法需将纵梁与支撑钢管焊接,在施工完成后通过切断支撑钢管来实现支撑钢管和纵梁的分离,该拆除方法的具有拆除周期长,且会浪费钢管的缺点。现有的卸落装置,其左右两滑块的上下两端均设为尖角结构,无法平稳地放置在平面上,在穿套螺杆时,需要用手拿着或扶住滑块,给穿套操作带来不便。With the continuous improvement of my country's transportation road network, various bridges and roads intersect vertically and horizontally, and it is often necessary to cross existing roads during cross construction. During construction, it is necessary to ensure that the new road can be completed on schedule and the normal operation of the original road. The common construction method is to erect a steel structure temporary traffic portal above the original road. The steel structure temporary traffic doorway includes supporting steel pipes and longitudinal beams welded to the supporting steel pipes, I-beams, and formwork. The existing construction method requires the longitudinal beams and the supporting steel pipes to be welded, which is achieved by cutting the supporting steel pipes after the construction is completed. To support the separation of steel pipes and longitudinal beams, this removal method has the shortcomings of long removal cycle and waste of steel pipes. In the existing unloading device, the upper and lower ends of the left and right sliders are set with sharp angle structures, which cannot be placed on a plane smoothly. When the screw is worn, it is necessary to hold or hold the slider by hand to wear it. The set operation brings inconvenience.
本发明的目的是提供一种既方便拆除操作,又能节省支撑钢管的桥梁道路跨线施工中交通门洞的施工方法。The object of the present invention is to provide a construction method that not only facilitates the dismantling operation, but also saves the traffic gate opening in the construction of bridge roads supporting steel pipes.
技术解决手段Technical solutions
为了实现上述的目的,本发明提供的一种桥梁道路跨线施工中交通门洞的施工方法,包括安装步骤,安装步骤包括:在道路两侧安装若干支撑钢管;在支撑钢管上安装卸落装置,卸落装置包括上支座、下支座、左滑块、右滑块、螺杆和两个螺母,上支座位于下支座的上方,左滑块和右滑块位于下支座的两侧,上支座上设有第一倾斜部和第二倾斜部,第一倾斜部和第二倾斜部从上向下自上支座的两侧向上支座的中部方向倾斜,下支座上设有第三倾斜部和第四倾斜部,第三倾斜部和第四倾斜部从下向上自上支座的两侧向上支座的中部方向倾斜,左滑块上设有第五倾斜部、第六倾斜部、第一平面部和第二平面部,第五倾斜部与第一倾斜部平行设置并邻接,第六倾斜部与第三倾斜部平行设置并邻接,第一平面部和第二平面部分设在左滑块的上下两端的端面上,第一平面部和第二平面部分别与下支座的底壁平行设置,右滑块上设有第七倾斜部、第八倾斜部、第三平面部和第四平面部,第七倾斜部与第二倾斜部平行设置并邻接,第八倾斜部与第四倾斜部平行设置并邻接,第三平面部和第四平面部分设在右滑块的上下两端的端面上,第三平面部和第四平面部分别与下支座的底壁平行设置,螺杆贯穿左滑块和右滑块,螺杆的轴向与下支座的底壁平行,螺母设置在螺杆上,左滑块和右滑块位于两个螺母之间;调整上支座的预设高度并在上支座上安装纵梁,纵梁设置在道路同一侧上的支撑钢管上;在纵梁上安装横梁,横梁设置在将道路两侧上的纵梁上;在横梁上铺设模板并浇筑混凝土。In order to achieve the above-mentioned purpose, the present invention provides a method for constructing a traffic doorway in bridge road cross-line construction, which includes an installation step. The installation step includes: installing a number of supporting steel pipes on both sides of the road; installing a drop device on the supporting steel pipes, The unloading device includes an upper support, a lower support, a left slide, a right slide, a screw and two nuts. The upper support is located above the lower support, and the left and right slides are located on both sides of the lower support. , The upper support is provided with a first inclined part and a second inclined part, the first inclined part and the second inclined part are inclined from the top to the bottom from the two sides of the upper support to the middle of the support, and the lower support is provided with There are a third inclined part and a fourth inclined part. The third inclined part and the fourth inclined part are inclined from the two sides of the upper support to the middle of the support from the bottom to the top. The left slider is provided with a fifth inclined part and a second inclined part. Six inclined parts, a first flat part and a second flat part, the fifth inclined part is arranged parallel to and adjacent to the first inclined part, the sixth inclined part is arranged parallel to and adjacent to the third inclined part, the first flat part and the second flat Are partially set on the end surfaces of the upper and lower ends of the left slider, the first plane portion and the second plane portion are respectively arranged in parallel with the bottom wall of the lower support, and the right slider is provided with a seventh inclined portion, an eighth inclined portion, and a first The three-plane part and the fourth flat part, the seventh inclined part and the second inclined part are arranged in parallel and adjacent to each other, the eighth inclined part and the fourth inclined part are arranged in parallel and adjacent to each other, and the third and fourth flat parts are arranged on the right slide On the end faces of the upper and lower ends of the block, the third plane part and the fourth plane part are respectively arranged in parallel with the bottom wall of the lower support. The screw penetrates the left and right sliders, and the axial direction of the screw is parallel to the bottom wall of the lower support. , The nut is set on the screw, the left slider and the right slider are located between the two nuts; adjust the preset height of the upper support and install the longitudinal beam on the upper support, the longitudinal beam is set on the support steel pipe on the same side of the road Install the beam on the longitudinal beams, which are set on the longitudinal beams on both sides of the road; lay the formwork on the beams and pour concrete.
进一步的方案是,执行安装步骤后,还执行拆除步骤包括:旋转螺母使其向螺杆的端部移动;控制左滑块沿第三倾斜部向螺杆的端部移动,同时控制右滑块沿第四倾斜部向螺杆的端部移动,带动上支座向下移动,使得上支座与纵梁分离;拆除支撑钢管、纵梁和模板,使模板与混凝土分离。A further solution is that after the installation step is performed, the removal step is also performed including: rotating the nut to move to the end of the screw; controlling the left slider to move along the third inclined part to the end of the screw, and at the same time controlling the right slider to move along the first The four inclined parts move to the end of the screw to drive the upper support to move down, so that the upper support is separated from the longitudinal beam; the supporting steel pipe, the longitudinal beam and the formwork are removed to separate the formwork from the concrete.
更进一步的方案是,卸落装置还包括两个支撑部,两个支撑部位于螺杆轴向的两侧上,且支撑部位于第一倾斜部和第二倾斜部之间。A further solution is that the unloading device further includes two supporting parts, the two supporting parts are located on both sides of the screw axis, and the supporting part is located between the first inclined part and the second inclined part.
更进一步的方案是,支撑部的顶壁在水平方向上高于螺杆的所在高度,且低于第五倾斜部的最低位置和第七倾斜部的最低位置。A further solution is that the top wall of the support part is higher than the height of the screw in the horizontal direction and lower than the lowest position of the fifth inclined part and the lowest position of the seventh inclined part.
更进一步的方案是,支撑部的顶壁与上支座的底壁平行设置。A further solution is that the top wall of the support part is arranged parallel to the bottom wall of the upper support.
更进一步的方案是,支撑部与上支座抵接时,上支座与左滑块、右滑块分离;上支座与左滑块、右滑块邻接时,上支座与支撑部分离。A further solution is that when the support part is in contact with the upper support, the upper support is separated from the left and right sliders; when the upper support is adjacent to the left and right sliders, the upper support is separated from the support .
更进一步的方案是,支撑部的顶壁上设有防滑垫。A further solution is that an anti-skid pad is provided on the top wall of the support part.
本发明通过设置同时贯穿左滑块和右滑块的螺杆,并在螺杆的两端设置螺母,通过旋转螺母推动左滑块和右滑块相对靠近移动,进而推动上支座竖直向上移动,用于支撑纵梁,方便在纵梁上设置横梁、模板和浇筑混凝土;混凝土施工完成一定时间后,需拆除门洞,此时反向旋转螺母,并使左滑块和右滑块作相对远离运动,此时上支座在重力作用下向下移动,使得上支座与纵梁分离。In the present invention, a screw rod that penetrates the left and right sliders at the same time is arranged, and nuts are arranged at both ends of the screw, and the left and right sliders are pushed to move relatively close by rotating the nuts, thereby pushing the upper support to move vertically upwards. It is used to support the longitudinal beams to facilitate the installation of beams, formwork and concrete pouring on the longitudinal beams; after the concrete construction is completed for a certain period of time, the door opening needs to be removed. At this time, the nut is rotated in the opposite direction and the left and right sliders are moved away from each other. At this time, the upper support moves downward under the action of gravity, so that the upper support is separated from the longitudinal beam.
本发明的卸落装置安装在支撑钢管和纵梁之间,既方便快速实现支撑钢管和纵梁的分离,节省时间,提高效率,又避免切割支撑钢管,保证支撑钢管的完整性,节省材料。本发明的左滑块和右滑块的上下两端均设有平面部,一方面在穿套螺杆时,可将平面部与支撑钢管的顶壁邻接,使得左滑块和右滑块均能平稳地放置在下支座的左右两侧,在无需手扶滑块的情况下也能完成螺杆的穿套操作,另一方面在滑块的上下两端设置平面部,倾斜部位于平面部一侧,在上支座支撑纵梁时,倾斜部受到外力压迫具有形变趋势,平面部的设置能加强滑块的自身强度,降低发生形变的概率。The unloading device of the present invention is installed between the supporting steel pipe and the longitudinal beam, which not only facilitates and quickly realizes the separation of the support steel pipe and the longitudinal beam, saves time and improves efficiency, but also avoids cutting the support steel pipe, ensures the integrity of the support steel pipe, and saves materials. The upper and lower ends of the left slider and the right slider of the present invention are provided with flat surfaces. On the one hand, when the screw is threaded, the flat surface can be adjacent to the top wall of the supporting steel pipe, so that both the left slider and the right slider can It is placed steadily on the left and right sides of the lower support, and the screw threading operation can be completed without the need to hold the slider. On the other hand, the upper and lower ends of the slider are provided with flat parts, and the inclined part is located on the side of the flat part. When the upper support supports the longitudinal beam, the inclined part is compressed by the external force and has a tendency to deform. The arrangement of the flat part can strengthen the strength of the slider and reduce the probability of deformation.
图1是本发明的卸落装置第一实施例用于支撑纵梁时的结构图。Fig. 1 is a structural diagram of the first embodiment of the unloading device of the present invention when it is used to support a longitudinal beam.
图2是本发明的卸落装置第一实施例的螺杆穿套时的结构分解图。Fig. 2 is an exploded view of the structure of the first embodiment of the unloading device according to the present invention when the screw is threaded.
图3是本发明的卸落装置第二实施例的结构图。Fig. 3 is a structural diagram of a second embodiment of the unloading device of the present invention.
图4是本发明施工方法中安装步骤的流程图。Figure 4 is a flow chart of the installation steps in the construction method of the present invention.
以下结合附图及实施例对本发明作进一步说明。The present invention will be further described below in conjunction with the drawings and embodiments.
卸落装置第一实施例The first embodiment of the unloading device
参见图1和图2,本实施例的卸落装置包括上支座1、下支座2、左滑块3、右滑块4、螺杆5和两个螺母6,上支座1位于下支座2的上方,左滑块3和右滑块4位于下支座2的两侧,左滑块3和右滑块4上均设有通孔,使得螺杆5贯穿左滑块3和右滑块4,螺杆5的轴向与下支座2的底壁平行,螺母6螺纹连接在螺杆5的端部上,使得左滑块3和右滑块4位于两个螺母6之间,螺母6的端面分别与左滑块3的侧壁、右滑块4的侧壁邻接。1 and 2, the unloading device of this embodiment includes an upper support 1, a lower support 2, a left slider 3, a right slider 4, a screw rod 5 and two nuts 6, the upper support 1 is located on the lower support Above the base 2, the left slider 3 and the right slider 4 are located on both sides of the lower support 2. Both the left slider 3 and the right slider 4 are provided with through holes, so that the screw 5 penetrates the left slider 3 and the right slider Block 4, the axial direction of the screw 5 is parallel to the bottom wall of the lower support 2, and the nut 6 is threadedly connected to the end of the screw 5, so that the left slider 3 and the right slider 4 are located between the two nuts 6, the nut 6 The end faces of are adjacent to the side wall of the left slider 3 and the side wall of the right slider 4, respectively.
上支座1设为倒置的等腰梯形结构,上支座1的左右两侧上设有第一倾斜部11和第二倾斜部12,第一倾斜部11和第二倾斜部12从上向下自上支座1的两侧向上支座1的中部方向倾斜。上支座1通过呈包围状的第三边框13和两个第三挡板14焊接而成,第三挡板14封堵在第三边框13的前后两端上,使得上支座1形成中空的封闭结构。第三挡板14凹陷与第三边框13之内,使得第三挡板14的侧壁与第三边框13的端面之间形成台阶,焊接第三挡板14时,焊头沿该台阶的边缘进行焊接。The upper support 1 is set as an inverted isosceles trapezoid structure. The left and right sides of the upper support 1 are provided with a first inclined portion 11 and a second inclined portion 12, and the first inclined portion 11 and the second inclined portion 12 are arranged from above. The bottom is inclined from the two sides of the upper support 1 to the middle of the upper support 1. The upper support 1 is formed by welding a surrounding third frame 13 and two third baffles 14. The third baffles 14 are sealed on the front and rear ends of the third frame 13, so that the upper support 1 is hollow. The closed structure. The third baffle 14 is recessed in the third frame 13, so that a step is formed between the side wall of the third baffle 14 and the end surface of the third frame 13. When the third baffle 14 is welded, the welding head is along the edge of the step Perform welding.
下支座2设为等腰梯形结构,下支座2的左右两侧上设有第三倾斜部21和第四倾斜部22,第三倾斜部21和第四倾斜部22从下向上自下支座2的两侧向下支座2的中部方向倾斜。下支座2通过呈包围状的第四边框23和两个第四挡板24焊接而成,第四挡板24封堵在第四边框23的前后两端上,使得下支座2形成中空的封闭结构。第四挡板24凹陷与第四边框23之内,使得第四挡板24的侧壁与第四边框23的端面之间形成台阶,焊接第四挡板24时,焊头沿该台阶的边缘进行焊接。The lower support 2 is set in an isosceles trapezoid structure. The left and right sides of the lower support 2 are provided with a third inclined portion 21 and a fourth inclined portion 22. The third inclined portion 21 and the fourth inclined portion 22 are from bottom to top. The two sides of the support 2 are inclined downward in the direction of the middle of the support 2. The lower support 2 is formed by welding a surrounding fourth frame 23 and two fourth baffles 24. The fourth baffles 24 are sealed on the front and rear ends of the fourth frame 23, so that the lower support 2 is hollow. The closed structure. The fourth baffle 24 is recessed in the fourth frame 23, so that a step is formed between the side wall of the fourth baffle 24 and the end surface of the fourth frame 23. When the fourth baffle 24 is welded, the welding head is along the edge of the step Perform welding.
左滑块3的横截面设为梯形和矩形的结合体,左滑块3的上端设有第五倾斜部31和第一平面部33,右滑块4的下端设有第六倾斜部32和第二平面部34。第五倾斜部31与第六倾斜部32上下对应,第五倾斜部31与第一倾斜部11平行设置并邻接,第六倾斜部32与第三倾斜部21平行设置并邻接。第一平面部33与第二平面部34上下对应,第一平面部33和第二平面部34分别与下支座2的底壁平行设置。左滑块3通过呈包围状的第一边框35和两个第一挡板36焊接而成,第一挡板36封堵在第一边框35的前后两端上,使得左滑块3形成中空的封闭结构。第一挡板36凹陷于第一边框35之内,使得第一挡板36的侧壁与第一边框35的端面之间形成台阶,焊接第一挡板36时,焊头沿该台阶的边缘进行焊接。The cross section of the left slider 3 is set as a combination of a trapezoid and a rectangle. The upper end of the left slider 3 is provided with a fifth inclined portion 31 and a first flat portion 33, and the lower end of the right slider 4 is provided with a sixth inclined portion 32 and The second plane 34. The fifth inclined portion 31 and the sixth inclined portion 32 correspond up and down, the fifth inclined portion 31 is arranged parallel to and adjacent to the first inclined portion 11, and the sixth inclined portion 32 is arranged parallel to and adjacent to the third inclined portion 21. The first flat portion 33 and the second flat portion 34 correspond up and down, and the first flat portion 33 and the second flat portion 34 are respectively arranged in parallel with the bottom wall of the lower support 2. The left slider 3 is formed by welding an enclosing first frame 35 and two first baffles 36. The first baffles 36 are sealed on the front and rear ends of the first frame 35, so that the left slider 3 is hollow. The closed structure. The first baffle 36 is recessed in the first frame 35, so that a step is formed between the side wall of the first baffle 36 and the end surface of the first frame 35. When the first baffle 36 is welded, the welding head is along the edge of the step. Perform welding.
右滑块4的横截面设为梯形和矩形的结合体,右滑块4的上端设有第七倾斜部41和第三平面部43,右滑块4的下端设有第八倾斜部42和第四平面部44。第七倾斜部41与第八倾斜部42上下对应,第七倾斜部41与第二倾斜部12平行设置并邻接,第八倾斜部42与第四倾斜部22平行设置并邻接。第三平面部43与第四平面部44上下对应,第三平面部43和第四平面部44分别与下支座2的底壁平行设置。右滑块4通过呈包围状的第二边框45和两个第二挡板46焊接而成,第二封堵在第二边框45的前后两端上,使得右滑块4形成中空的封闭结构。第二挡板46凹陷与第二边框45之内,使得第二挡板46的侧壁与第二边框45的端面之间形成台阶,焊接第二挡板46时,焊头沿该台阶的边缘进行焊接。 The cross section of the right slider 4 is a combination of a trapezoid and a rectangle. The upper end of the right slider 4 is provided with a seventh inclined portion 41 and a third flat portion 43, and the lower end of the right slider 4 is provided with an eighth inclined portion 42 and The fourth plane 44. The seventh inclined portion 41 and the eighth inclined portion 42 correspond up and down, the seventh inclined portion 41 is arranged parallel to and adjacent to the second inclined portion 12, and the eighth inclined portion 42 is arranged parallel to and adjacent to the fourth inclined portion 22. The third flat part 43 and the fourth flat part 44 correspond up and down, and the third flat part 43 and the fourth flat part 44 are respectively arranged in parallel with the bottom wall of the lower support 2. The right slider 4 is formed by welding the enclosing second frame 45 and two second baffles 46, and the second sealing is on the front and rear ends of the second frame 45, so that the right slider 4 forms a hollow closed structure . The second baffle 46 is recessed in the second frame 45, so that a step is formed between the side wall of the second baffle 46 and the end surface of the second frame 45. When the second baffle 46 is welded, the welding head is along the edge of the step Perform welding.
左滑块3、右滑块4均采用高强度的钢板焊接而成,其自身具有一定重量,在穿套螺杆5时,可将左滑块3、右滑块4平稳地放置在一平面上,即第二平面部34和第四平面部44与该平面邻接,此时,手持螺杆5的一端,然后将螺杆5的另一端穿过左滑块3和右滑块4的通孔,然后在螺杆5的两端上分别安装螺母6,完成穿套操作。Both the left slider 3 and the right slider 4 are welded by high-strength steel plates. They have a certain weight. When the screw 5 is worn, the left slider 3 and the right slider 4 can be placed on a flat surface smoothly. , That is, the second plane portion 34 and the fourth plane portion 44 are adjacent to the plane. At this time, hold one end of the screw 5, and then pass the other end of the screw 5 through the through holes of the left slider 3 and the right slider 4, and then Nuts 6 are installed on both ends of the screw 5 to complete the sleeve operation.
接着,将左滑块3和右滑块4置于下支座2的左右两侧,并使第三倾斜部21与第六倾斜部32邻接,且第四倾斜部22与第八倾斜部42邻接,然后将上支座1安装在左滑块3和右滑块4之间,并使第五倾斜部31与第一倾斜部11邻接,且第七倾斜部41与第二倾斜部12邻接。此时通过旋转螺母6推动左滑块3和右滑块4相对靠近运动,以推动上支座1上升预设高度。此时即可在上支座1上安装纵梁。拆除操作时,先反向旋转螺母6,并使左滑块3和右滑块4相对远离运动,此时上支座1在重力作用下向下移动,以实现上支座1和纵梁的分离操作。Next, the left slider 3 and the right slider 4 are placed on the left and right sides of the lower support 2, and the third inclined portion 21 is adjacent to the sixth inclined portion 32, and the fourth inclined portion 22 and the eighth inclined portion 42 are adjacent to each other. Abut, and then install the upper support 1 between the left slider 3 and the right slider 4, and make the fifth inclined portion 31 abut the first inclined portion 11, and the seventh inclined portion 41 abuts the second inclined portion 12 . At this time, the left slider 3 and the right slider 4 are moved closer to each other by rotating the nut 6 to push the upper support 1 up to a preset height. The longitudinal beam can be installed on the upper support 1 at this time. During the dismantling operation, first rotate the nut 6 in the reverse direction, and make the left slider 3 and the right slider 4 move away from each other. At this time, the upper support 1 moves downward under the action of gravity to realize the upper support 1 and the longitudinal beam. Separate operation.
卸落装置第二实施例The second embodiment of the unloading device
参见图3,在卸落装置第一实施例的基础上,本实施例的下支座2上设有两个支撑部37,两个支撑部37位于螺杆5轴向的两侧上。支撑部37位于第一倾斜部11和第二倾斜部12之间,支撑部37的顶壁在水平方向上高于螺杆5的所在高度,且低于第五倾斜部31的最低位置和第七倾斜部41的最低位置。最低位置是指当左滑块3的第二平面部34与下支座2的底壁处于同一平面时,第五倾斜部31所处的高度位置,或者,指当右滑块4的第四平面部44与下支座2的底壁处于同一平面时,第七倾斜部41所处的高度位置。支撑部37的顶壁与上支座1的底壁平行设置,用于与上支座1抵接。当支撑部37与上支座1抵接时,上支座1与左滑块3、右滑块4分离;当上支座1与左滑块3、右滑块4邻接时,上支座1与支撑部37分离。Referring to FIG. 3, on the basis of the first embodiment of the unloading device, the lower support 2 of this embodiment is provided with two supporting parts 37, and the two supporting parts 37 are located on both sides of the screw 5 in the axial direction. The supporting portion 37 is located between the first inclined portion 11 and the second inclined portion 12. The top wall of the supporting portion 37 is higher than the height of the screw 5 in the horizontal direction, and is lower than the lowest position of the fifth inclined portion 31 and the seventh The lowest position of the inclined portion 41. The lowest position refers to the height position of the fifth inclined portion 31 when the second flat portion 34 of the left slider 3 and the bottom wall of the lower support 2 are in the same plane, or when the fourth When the flat portion 44 and the bottom wall of the lower support 2 are in the same plane, the seventh inclined portion 41 is at a height position. The top wall of the supporting portion 37 is arranged in parallel with the bottom wall of the upper support 1 for abutting against the upper support 1. When the support portion 37 abuts the upper support 1, the upper support 1 separates from the left slider 3 and the right slider 4; when the upper support 1 abuts the left slider 3 and the right slider 4, the upper support 1 is separated from the supporting portion 37.
支撑部37的顶壁上设有防滑垫,起防止上支座1与支撑部37抵接时发生错位,导致上支座1与支撑部37分离。An anti-skid pad is provided on the top wall of the support portion 37 to prevent the upper support 1 and the support portion 37 from being misaligned when abutting, causing the upper support 1 and the support portion 37 to separate.
施工方法实施例Construction method embodiment
参见图4,本实施例的桥梁道路跨线施工中交通门洞的施工方法,包括安装步骤和拆除步骤。Referring to Fig. 4, the construction method of the traffic gate opening in the bridge road crossing construction in this embodiment includes installation steps and dismantling steps.
本实施例的安装步骤包括:The installation steps of this embodiment include:
首先执行步骤S1,在道路两侧安装若干支撑钢管。First, perform step S1 to install several supporting steel pipes on both sides of the road.
然后执行步骤S2,在每一支撑钢管上安装卸落装置,该卸落装置为上述实施例中的卸落装置。Then step S2 is executed to install a drop device on each support steel pipe, and the drop device is the drop device in the above-mentioned embodiment.
接着执行步骤S3,调整卸落装置中上支座的预设高度并在上支座上安装纵梁,纵梁设置在道路同一侧上的支撑钢管上。调整卸落装置中上支座的预设高度具体包括:旋转两个螺母,使得两个螺母沿螺杆的轴向相对靠近运动,进而推动左滑块和右滑块相对靠近移动,左滑块和右滑块推动上支座向上移动至预设高度。Then step S3 is performed to adjust the preset height of the upper support in the unloading device and install the longitudinal beam on the upper support, and the longitudinal beam is set on the supporting steel pipe on the same side of the road. Adjusting the preset height of the upper support in the unloading device specifically includes: rotating two nuts so that the two nuts move relatively closely along the axial direction of the screw, and then push the left and right sliders to move relatively close, and the left and right sliders move closer together. The right slider pushes the upper support to move up to the preset height.
然后执行步骤S4,在纵梁上安装横梁,横梁设置在将道路两侧上的纵梁上。Then step S4 is executed to install the cross beams on the longitudinal beams, and the cross beams are arranged on the longitudinal beams on both sides of the road.
接着执行步骤S5, 在横梁上铺设模板并浇筑混凝土。Then perform step S5 to lay the formwork on the beam and pour concrete.
执行安装步骤后,还执行拆除步骤,拆除步骤包括:After the installation steps are performed, the removal steps are also performed. The removal steps include:
旋转两个螺母使螺母向螺杆的最接近的一端端部移动。Rotate the two nuts to move the nut to the closest end of the screw.
控制左滑块沿第三倾斜部向螺杆的端部移动,同时控制右滑块沿第四倾斜部向螺杆的端部移动,带动上支座向下移动,使得上支座与纵梁分离。The left slider is controlled to move along the third inclined portion to the end of the screw, while the right slider is controlled to move along the fourth inclined portion to the end of the screw, driving the upper support to move downward, so that the upper support is separated from the longitudinal beam.
拆除支撑钢管、纵梁和模板,使模板与混凝土分离。Remove the supporting steel pipes, longitudinal beams and formwork to separate the formwork from the concrete.
工业应用性Industrial applicability
本发明是一种桥梁道路跨线建设中交通门洞的施工方法,可以应用在桥梁道路跨线的施工。由于本发明通过在支撑钢管和纵梁之间设置卸落装置,卸落装置的上支座位于较高位置时用于支撑纵梁,上支座位于较底位置时,可实现上支座和纵梁的快速分离,节省时间,提高施工的效率。The invention is a construction method of a traffic door opening in the bridge road cross-line construction, which can be applied to the bridge road cross-line construction. Because the present invention provides the unloading device between the supporting steel pipe and the longitudinal beam, the upper support of the unloading device is used to support the longitudinal beam when the upper support is at a higher position, and when the upper support is at the lower position, the upper support and The rapid separation of the longitudinal beams saves time and improves the efficiency of construction.
Claims (7)
- 一种桥梁道路跨线施工中交通门洞的施工方法,包括安装步骤,其特征在于:A method for constructing a traffic doorway in a bridge and road crossing construction, including an installation step, is characterized in that:所述安装步骤包括:The installation steps include:在道路两侧安装若干支撑钢管;Install several supporting steel pipes on both sides of the road;在所述支撑钢管上安装卸落装置,所述卸落装置包括上支座、下支座、左滑块、右滑块、螺杆和两个螺母,所述上支座位于所述下支座的上方,所述左滑块和所述右滑块位于所述下支座的两侧,所述上支座上设有第一倾斜部和第二倾斜部,所述第一倾斜部和所述第二倾斜部从上向下自所述上支座的两侧向所述上支座的中部方向倾斜,所述下支座上设有第三倾斜部和第四倾斜部,所述第三倾斜部和所述第四倾斜部从下向上自所述下支座的两侧向所述下支座的中部方向倾斜,所述左滑块上设有第五倾斜部、第六倾斜部、第一平面部和第二平面部,所述第五倾斜部与所述第一倾斜部平行设置并邻接,所述第六倾斜部与所述第三倾斜部平行设置并邻接,所述第一平面部和所述第二平面部分设在所述左滑块的上下两端的端面上,所述第一平面部和所述第二平面部分别与所述下支座的底壁平行设置,所述右滑块上设有第七倾斜部、第八倾斜部、第三平面部和第四平面部,所述第七倾斜部与所述第二倾斜部平行设置并邻接,所述第八倾斜部与所述第四倾斜部平行设置并邻接,所述第三平面部和所述第四平面部分设在所述右滑块的上下两端的端面上,所述第三平面部和所述第四平面部分别与所述下支座的底壁平行设置,所述螺杆贯穿所述左滑块和所述右滑块,所述螺杆的轴向与所述下支座的底壁平行,所述螺母设置在所述螺杆上,所述左滑块和所述右滑块位于两个所述螺母之间;A drop device is installed on the support steel pipe. The drop device includes an upper support, a lower support, a left slider, a right slider, a screw and two nuts. The upper support is located on the lower support. Above, the left slider and the right slider are located on both sides of the lower support, the upper support is provided with a first inclined portion and a second inclined portion, the first inclined portion and the The second inclined portion is inclined from both sides of the upper support to the middle of the upper support from top to bottom, and the lower support is provided with a third inclined portion and a fourth inclined portion. The three inclined portions and the fourth inclined portion are inclined from both sides of the lower support to the middle of the lower support from bottom to top, and the left slider is provided with a fifth inclined portion and a sixth inclined portion , A first flat surface portion and a second flat surface portion, the fifth inclined portion is arranged parallel to and adjacent to the first inclined portion, the sixth inclined portion is arranged parallel to and adjacent to the third inclined portion, the first A plane portion and the second plane portion are provided on the end surfaces of the upper and lower ends of the left slider, the first plane portion and the second plane portion are respectively arranged in parallel with the bottom wall of the lower support, The right slider is provided with a seventh inclined portion, an eighth inclined portion, a third flat portion, and a fourth flat portion. The seventh inclined portion is arranged parallel to and adjacent to the second inclined portion, and the eighth The inclined part is arranged parallel to and adjacent to the fourth inclined part, the third flat part and the fourth flat part are arranged on the end faces of the upper and lower ends of the right slider, the third flat part and the The fourth plane portions are respectively arranged in parallel with the bottom wall of the lower support, the screw passes through the left slider and the right slider, and the axial direction of the screw is parallel to the bottom wall of the lower support, The nut is arranged on the screw, and the left slider and the right slider are located between the two nuts;该方法包括:The method includes:调整所述上支座的预设高度并在所述上支座上安装纵梁,所述纵梁设置在所述道路同一侧上的所述支撑钢管上;Adjusting the preset height of the upper support and installing a longitudinal beam on the upper support, the longitudinal beam being arranged on the supporting steel pipe on the same side of the road;在所述纵梁上安装横梁,所述横梁设置在将所述道路两侧上的所述纵梁上;Installing cross beams on the longitudinal beams, the cross beams being arranged on the longitudinal beams on both sides of the road;在所述横梁上铺设模板并浇筑混凝土。Laying a formwork and pouring concrete on the beam.
- 根据权利要求1所述的施工方法,其特征在于:The construction method according to claim 1, characterized in that:执行所述安装步骤后,还执行拆除步骤,所述拆除步骤包括:After the installation step is performed, a dismantling step is also performed, and the dismantling step includes:旋转所述螺母使其向所述螺杆的端部移动;Rotating the nut to move to the end of the screw;控制所述左滑块沿所述第三倾斜部向所述螺杆的端部移动,同时控制所述右滑块沿所述第四倾斜部向所述螺杆的端部移动,带动所述上支座向下移动,使得所述上支座与所述纵梁分离;Control the left slider to move to the end of the screw along the third inclined portion, and control the right slider to move to the end of the screw along the fourth inclined portion to drive the upper support The seat moves downward so that the upper support is separated from the longitudinal beam;拆除所述支撑钢管、所述纵梁和所述模板,使所述模板与所述混凝土分离。The supporting steel pipe, the longitudinal beam and the formwork are removed to separate the formwork from the concrete.
- 根据权利要求1或2所述的施工方法,其特征在于:The construction method according to claim 1 or 2, characterized in that:所述卸落装置还包括两个支撑部,两个所述支撑部位于所述螺杆轴向的两侧上,且所述支撑部位于所述第一倾斜部和所述第二倾斜部之间。The unloading device also includes two supporting parts, the two supporting parts are located on both sides of the screw shaft, and the supporting part is located between the first inclined part and the second inclined part .
- 根据权利要求3所述的施工方法,其特征在于:The construction method according to claim 3, characterized in that:所述支撑部的顶壁在水平方向上高于所述螺杆的所在高度,且低于所述第五倾斜部的最低位置和所述第七倾斜部的最低位置。The top wall of the supporting part is higher than the height of the screw in the horizontal direction, and lower than the lowest position of the fifth inclined part and the lowest position of the seventh inclined part.
- 根据权利要求3或4所述的施工方法,其特征在于:The construction method according to claim 3 or 4, characterized in that:所述支撑部的顶壁与所述上支座的底壁平行设置。The top wall of the support part is arranged in parallel with the bottom wall of the upper support.
- 根据权利要求5所述的施工方法,其特征在于:The construction method according to claim 5, characterized in that:所述支撑部与所述上支座抵接时,所述上支座与所述左滑块、所述右滑块分离;所述上支座与所述左滑块、所述右滑块邻接时,所述上支座与所述支撑部分离。When the support part abuts the upper support, the upper support is separated from the left slider and the right slider; the upper support is separated from the left slider and the right slider When abutting, the upper support is separated from the support part.
- 根据权利要求3至6任一项所述的施工方法,其特征在于:The construction method according to any one of claims 3 to 6, characterized in that:所述支撑部的顶壁上设有防滑垫。An anti-skid pad is arranged on the top wall of the supporting part.
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CN111335089B (en) * | 2020-03-05 | 2021-06-08 | 中铁十九局集团广州工程有限公司 | Construction method of traffic door opening in bridge road cross-line construction |
CN113774798A (en) * | 2021-09-02 | 2021-12-10 | 中铁四局集团第二工程有限公司 | Bridge construction method and bridge dragging and pulling system |
CN113774799A (en) * | 2021-09-02 | 2021-12-10 | 中铁四局集团第二工程有限公司 | Traction adjusting device for integral bridge dragging construction |
CN114164765A (en) * | 2021-12-20 | 2022-03-11 | 中铁一局集团有限公司 | Assembly type dismounting method for temporary support of cast-in-place bent cap in narrow space |
CN117428363B (en) * | 2023-12-20 | 2024-02-23 | 贵州省公路工程集团有限公司 | Welding method of unloading device |
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