CN113202030B - Installation system and installation method suitable for arch rib - Google Patents
Installation system and installation method suitable for arch rib Download PDFInfo
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- CN113202030B CN113202030B CN202110412806.1A CN202110412806A CN113202030B CN 113202030 B CN113202030 B CN 113202030B CN 202110412806 A CN202110412806 A CN 202110412806A CN 113202030 B CN113202030 B CN 113202030B
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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
- E01D4/00—Arch-type 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
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- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to a mounting system and a mounting method thereof suitable for arch ribs, wherein the mounting system comprises the following components: an arch support; the arch rib is laterally laid on one side of the arch base, and the arch rib is connected with the arch base through an arch foot rotating hinge so that the arch rib can rotate relative to the arch base along the transverse bridge direction; the first driving mechanism and the arch rib are respectively positioned at two opposite sides of the arch support, and the first driving mechanism is connected with one side of the arch rib through a first dragging rope and is used for dragging the arch rib to turn over integrally. According to the installation system and the installation method suitable for the arch rib, the arch rib can be firstly assembled into a whole in a prone position on one side of the arch seat, the height of each segment of the arch rib from the foundation is the same in the assembling process, high-altitude butt joint is not needed, and after the assembling is finished, the arch rib can be pulled up from the prone position to rotate to a vertical position through the first driving mechanism and the first pulling rope, so that the workload of assembling the arch rib on the ground is small, and the working efficiency is improved.
Description
Technical Field
The invention relates to the field of bridge construction, in particular to an installation system and an installation method suitable for arch ribs.
Background
At present, the installation construction of the main arch of the existing steel arch bridge mainly comprises a bracket-free method and a bracket method, and the main arch rib is divided into sections and is lengthened section by section to close the arch. The construction of the bracket-free method mainly adopts the cable crane to obliquely pull, buckle and hang the cantilever and assemble the cantilever section by section to the middle closure, and has high construction control requirement and large safety risk; during the construction of the bracket method, a sufficiently strong support needs to be provided for each arch rib segment, and then segment components are hoisted by utilizing hoisting equipment, so that the arch bridge is assembled into a whole at the support position.
In the related art, when a main arch of a steel arch bridge is installed, a special floor type assembling support is generally erected at an arch rib bridge position, then large-scale hoisting equipment is used for hoisting section by section, the arch rib bridge is assembled into a whole at a high altitude, and finally the steel arch bridge is closed in a midspan.
However, by adopting the assembling method, the steel arch rib assembling support needs to be erected before assembling, high-altitude butt joint needs to be carried out on sections one by one in the assembling process, the workload is large, the consumed time is long, the working efficiency is low, and meanwhile, the safety risk is high when the support is high.
Therefore, there is a need for a new construction method and installation method for steel arch bridges to overcome the above problems.
Disclosure of Invention
The embodiment of the invention provides an installation system and an installation method suitable for arch ribs, and aims to solve the problems that in the related art, high-altitude butt joint is needed one by one in the process of assembling a main arch of a steel arch bridge, the workload is large, the consumed time is long, and the working efficiency is low.
In a first aspect, there is provided a mounting system for a rib comprising: an arch support; the arch rib is laterally laid on one side of the arch base, and the arch rib is connected with the arch base through an arch foot rotating hinge so that the arch rib can rotate relative to the arch base along the transverse bridge direction; the first driving mechanism and the arch rib are respectively positioned at two opposite sides of the arch support, and the first driving mechanism is connected with one side of the arch rib through a first dragging rope and is used for dragging the arch rib to turn over integrally.
In some embodiments, the first haul line is coupled to the rib by a haul frame, and an axis of the haul frame is substantially collinear with the first haul line when the rib is rotated to a vertical position.
In some embodiments, a bogie is disposed between the first drive mechanism and the abutment, the bogie comprising: a frame body fixed to a foundation; a steering wheel mounted on the top of the frame body, and the first pulling rope is wound around the steering wheel.
In some embodiments, the bogie further comprises: the balance hoisting weight is arranged on the frame body; and one end of the balance lifting rope is fixed on the frame body or the foundation, and the other end of the balance lifting rope is connected with the first pulling rope.
In some embodiments, the mounting system further comprises a reverse drag fuse located on opposite sides of the rib from the first drive mechanism, the reverse drag fuse comprising: a second driving mechanism fixed to the foundation; and one end of the second dragging rope is connected with the arch rib, and the other end of the second dragging rope is connected with the second driving mechanism.
In a second aspect, there is provided a method of installation using the installation system for a rib described above, comprising the steps of: assembling the arch ribs into a whole section by section in a prone position; two ends of the arch rib are connected with the arch seat through an arch foot rotating hinge; and starting a first driving mechanism to enable the first driving mechanism to pull the arch rib through a first pulling rope, and enabling the arch rib to rotate to a vertical state around the arch springing pivot from a horizontal state.
In some embodiments, the assembling the arch rib into a whole section by section in a prone position includes: placing an assembling buttress at one side of the arch seat; and assembling the arch ribs section by section on the assembling buttress in a prone position, adjusting the linearity of the arch ribs, and welding the arch ribs into a whole.
In some embodiments, the mounting system further comprises a bogie including a frame body and a steering wheel, and before the first driving mechanism is activated to cause the first driving mechanism to drag the rib through the first dragging rope, the rib rotates from the prone position to the vertical position, the method further comprises: fixing the first driving mechanism on a foundation according to a preset position; fixing the bogie on a foundation according to a preset position, wherein the bogie is positioned between the first driving mechanism and the arch support; connecting the first driving mechanism with the arch rib using a first haul line, and simultaneously winding the first haul line around the steering wheel.
In some embodiments, the mounting system further comprises a reverse pull safety device comprising a second drive mechanism and a second pull cord, the actuating the first drive mechanism causing the first drive mechanism to pull the rib through the first pull cord, the rotation of the rib from the prone position to the upright position comprising: and starting the first driving mechanism, slowly pulling the arch rib up by the first pulling rope, and simultaneously, reversely pulling the arch rib by the second driving mechanism at the reverse side through the second pulling rope.
In some embodiments, after the actuating the first driving mechanism to cause the first driving mechanism to pull the rib through the first pulling rope, the rib rotates from the prone position to the vertical position, the method further comprises: and locking the arch springing rotary hinge, and supporting a cushion seat between the bottom surface of the arch rib and the arch seat.
The technical scheme provided by the invention has the beneficial effects that:
the embodiment of the invention provides an installation system and an installation method suitable for arch ribs, wherein the arch ribs are laterally laid on one side of an arch support, the arch ribs can be firstly assembled into a whole section by section in a horizontal position on one side of the arch support, the height of each section of the arch ribs from a foundation in the assembling process is the same, high-altitude butt joint is not needed, and after the assembling is finished, the arch ribs can be pulled up from the horizontal position to be rotated to be in a vertical state through a first driving mechanism and a first pulling rope, so that the workload of assembling the arch ribs on the ground is small, and the working efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a mounting system for a rib according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a rib swiveling process of a mounting system for a rib according to an embodiment of the present invention;
fig. 3 is a left side view of a mounting system for a rib according to an embodiment of the present invention, after the rib is rotated in place;
fig. 4 is a schematic front view of a mounting system for a rib according to an embodiment of the present invention, after the rib is swiveled in place;
fig. 5 is a schematic top view of a mounting system for a rib according to an embodiment of the present invention, with the rib rotated in place.
In the figure:
1. an arch support;
2. an arch rib;
3. the arch springing is hinged;
4. a first drive mechanism; 41. a first pulling rope;
5. pulling the frame;
6. a bogie; 61. a frame body; 62. a steering wheel;
7. pulling the safety device in the reverse direction; 71. a second drive mechanism; 72. a second pulling rope;
8. assembling the buttress; 9. a cushion seat.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
The embodiment of the invention provides an installation system and an installation method suitable for arch ribs, and solves the problems that in the related art, the main arch of a steel arch bridge needs to be butted at high altitude section by section in the assembly process, the workload is large, the consumed time is long, and the working efficiency is low.
Referring to fig. 1 to 3, a mounting system for a rib according to an embodiment of the present invention may include: the arch center 1, in this embodiment, the arch center 1 is partially buried in the foundation; the arch rib 2 is laterally laid on one side of the arch base 1, in the embodiment, the arch rib 2 is positioned on the left side of the arch base 1, the arch rib 2 is temporarily supported on a foundation through an assembling buttress 8, the arch rib 2 is assembled into a whole in a lying posture section by section on the assembling buttress 8, the bottom of the arch rib 2 can be connected with the arch base 1 through an arch foot turning hinge 3, namely, one side of the bottom of the arch rib 2, which is close to the arch base 1, is connected with the arch base 1 through the arch foot turning hinge 3, and two opposite ends of the arch rib 2 in the longitudinal bridge direction can be provided with the arch foot turning hinges 3, so that the arch rib 2 can rotate around the rotating shaft of the arch foot turning hinges 3 relative to the arch base 1 in the transverse bridge direction; and the first driving mechanism 4, it locates at opposite both sides of the arch center 1 separately with the arch rib 2, in this embodiment, the arch rib 2 lies on the left side of the arch center 1 on one side, the first driving mechanism 4 is set up on the right side of the arch center 1, and the first driving mechanism 4 can be fixed with the foundation, the first driving mechanism 4 is preferably an anchor type hoist engine, provide power for turning over construction of the arch rib 2, at the same time, it is convenient to resist some horizontal force produced in the turning over process of the arch rib 2, the first driving mechanism 4 can be connected with one side of the arch rib 2 through the first drawing rope 41, in this embodiment, the first drawing rope 41 is connected to the right side of the arch rib 2, used for drawing the whole body of the arch rib 2 to turn over, namely, the arch rib 2 rotates from the lying state to the vertical state, thus can be supported on the upper side of the arch center 1 vertically, through the lying assembly on one side, then drawing the vertical rotation way, make the arch rib 2 complete the whole, the arch rib 2 sections do not need to be hung in the air, assembly operation in the air is not needed, safety risks are reduced, the use of large-scale hoisting equipment and vertical assembly supports corresponding to the sections is reduced, workload is low, and working efficiency is improved.
Referring to fig. 1 and 2, further, the arch foot hinge 3 may include a base ear box, wherein the base ear box may be fixed on the top of the arch base 1, and a connection ear box, which may be fixed on the bottom of the arch rib 2, the base ear box and the connection ear box may be connected as a whole by a pin so that the arch rib 2 may rotate around the axis of the pin, wherein the base ear box and the connection ear box are preferably box-type welded structures or molded castings, and the pin is preferably alloy steel castings.
Referring to fig. 1 and 2, in some embodiments, the first pulling rope 41 may be connected to the arch rib 2 through a pulling frame 5, that is, when the arch rib 2 is in a lying state, the pulling frame 5 may be fixed to an upper side of the arch rib 2, wherein the pulling frame 5 has a certain width, one side of the pulling frame 5 is fixed to the arch rib 2, and the other side of the pulling frame 5 is connected to the first pulling rope 41, and the pulling frame 5 may have a truss structure, which is simple and light in structure, increases a contact area between the first pulling rope 41 and the arch rib 2 by providing the pulling frame 5, and simultaneously provides a safety guarantee, and plays a role of buffering between the first pulling rope 41 and the arch rib 2, so as to prevent the first pulling rope 41 from directly pulling the arch rib 2, so that the local stress of the arch rib 2 is concentrated, and the structure of the arch rib 2 is affected; when the arch rib 2 rotates to the vertical state, the axis of the pulling frame 5 is approximately collinear with the first pulling rope 41, so that when the arch rib 2 rotates to the vertical state, the force exerted on the arch rib 2 by the first pulling rope 41 is almost along the inclined direction of the first pulling rope 41, and almost no component force exists in other directions, thereby avoiding the deformation of the arch rib 2 and the pulling frame 5 caused by the component force in other directions pulling the arch rib 2 and the pulling frame 5; in this embodiment, two pulling frames 5 are provided, one of which is disposed at a quarter of the length of the rib 2, and the other is disposed at three quarters of the length of the rib 2, and in other embodiments, one or three or more pulling frames 5 may be provided.
Referring to fig. 1 and 3, in some alternative embodiments, a bogie 6 may be provided between the first drive mechanism 4 and the abutment 1, wherein the bogie 6 may comprise: in the embodiment of the frame body 61, the frame body 61 can be welded into a support structure by using a truss, and the bottom of the frame body 61 can be fixed on a foundation to resist partial horizontal force and vertical force generated by the arch rib 2 in the process of turning over and turning; the directive wheel 62, it can be installed in the top of support body 61, make first stay cord 41 of dragging can twine on directive wheel 62, be unlikely to hang down to ground, the directive wheel 62 can change the first winding direction that drags stay cord 41 simultaneously, it is great to make the first perpendicular power of turning that drags the stay cord 41 and provide, it is in controllable state to drag the construction, support body 61 and directive wheel 62 can play and provide for first stay cord 41 of dragging and turn to and conveniently drag the effect of pulling, and will turn over partial power transmission of in-process for the ground.
Referring to fig. 1, further, the bogie 6 may further include: a balance sling, which can be arranged on the frame body 61, so that the bogie 6 has a certain weight and is not easy to topple or be lifted; and one end of the balance lifting rope is fixed on the frame body 61 or the foundation, and the other end of the balance lifting rope is connected with the first pulling rope 41, so that the first pulling rope 41 is in a tensioned state in the process of pulling the arch rib 2 to turn over and swivel.
Referring to fig. 2, preferably, one or more pulley blocks may be fixedly disposed on the frame body 61, the balance lifting rope may be wound around the pulley blocks, a horizontal force generated when the balance lifting rope pulls the first pulling rope 41 can be overcome by disposing the pulley blocks, the larger the force borne by the balance lifting rope, the more the pulley blocks are disposed, and when the force borne by the balance lifting rope is smaller, the pulley blocks may not be disposed.
Referring to fig. 2, 3 and 5, in some embodiments, the mounting system may further comprise a reverse pulling safety 7, the reverse pulling safety 7 and the first driving mechanism 4 may be located on opposite sides of the arch rib 2, and the arch rib 2 and the reverse pulling safety 7 are located on the same side of the arch base 1 when the arch rib 2 is in the side-lying state, wherein the reverse pulling safety 7 may comprise: a second drive mechanism 71 which may be fixed to the foundation, in this embodiment the second drive mechanism 71 is also preferably an anchor winch, facilitating anchoring to the foundation; in the embodiment, the second pulling rope 72 is wound on the second driving mechanism 71, and along with the turning process of the arch rib 2, the second driving mechanism 71 gradually releases the second pulling rope 72, the second pulling rope 72 can be always in a tensioned state in the turning process of the arch rib 2, and by arranging the reverse second driving mechanism 71 and the second pulling rope 72, reverse correction can be provided for the turning of the arch rib 2, so that the phenomenon that the arch rib 2 overturns due to the fact that the forward turning speed is too high and the external wind force acts is avoided.
Referring to fig. 1 to 5, a method for installing a mounting system for a rib according to an embodiment of the present invention may include the following steps:
step 1: the arch ribs 2 are assembled into a whole section by section in a prone position.
In some embodiments, before the ribs 2 are assembled into a whole in a lying position, a plurality of the rib 2 segments may be transported to a construction site, and the foundation is treated according to relevant specifications in combination with actual conditions at the construction site.
In some embodiments, the assembling the arch rib 2 into a whole section by section in a prone position may include: an assembling buttress 8 is placed on one side of the arch support 1, in the embodiment, the assembling buttress 8 is placed on the left side of the arch support 1, and meanwhile, the height of each assembling buttress 8 is the same; then, the arch ribs 2 can be assembled section by section in a lying position on the assembly buttresses 8, that is, the arch ribs 2 are in a side lying state in the assembly process, because the width of each section of the arch ribs 2 is generally the same, after the arch ribs 2 are placed in the side lying state, the height of the top surface of each section of the arch ribs 2 from the ground is the same, and compared with the arch ribs 2 in a vertical state, the height of each section of the arch ribs 2 from the ground in the side lying assembly process is relatively lower, then the arch ribs 2 can be adjusted according to the preset linearity, and after the linearity of the arch ribs 2 is adjusted, the arch ribs 2 can be welded into a whole.
Step 2: the two ends of the arch rib 2 are connected with the arch base 1 through arch foot rotary hinges 3.
In some embodiments, the arch foot hinge 3 comprises a base ear box, a connecting ear box and a pin; the connection of both ends of rib 2 and hunch seat 1 through hunch foot pivot 3 can include: the base ear box is fixed at the top of the arch support 1, the connecting ear box is fixed at the bottom of the arch rib 2, the base ear box is connected with the connecting ear box through a pin shaft, and meanwhile, arch foot rotating hinges 3 are arranged at two ends in the longitudinal direction of the arch rib 2, so that two ends of the arch rib 2 are connected with the arch support 1.
And step 3: the first driving mechanism 4 is activated to cause the first driving mechanism 4 to pull the arch rib 2 through the first pulling rope 41, and the arch rib 2 rotates from the prone position to the vertical position.
In some embodiments, the mounting system may further include a bogie 6, the bogie 6 may include a frame body 61 and a steering wheel 62, and before the first driving mechanism 4 is activated to cause the first driving mechanism 4 to pull the rib 2 through the first pulling rope 41, the rib 2 may further include: fixing the first driving mechanism 4 on the foundation according to a preset position; fixing a bogie 6 on the foundation according to a preset position, wherein the bogie 6 is positioned between the first driving mechanism 4 and the arch support 1; the first driving mechanism 4 and the rib 2 are connected by using the first pulling rope 41, wherein one end of the first pulling rope 41 is wound on the first driving mechanism 4, and the other end can be connected with the rib 2 through the pulling frame 5, and meanwhile, the middle part of the first pulling rope 41 can be wound on the steering wheel 62 at the top of the steering frame 6, so as to change the winding direction of the first pulling rope 41.
Further, the mounting system may further include a reverse pulling safety device 7, the reverse pulling safety device 7 may include a second driving mechanism 71 and a second pulling rope 72, the starting of the first driving mechanism 4 causes the first driving mechanism 4 to pull the arch rib 2 through the first pulling rope 41, and the rotation of the arch rib 2 from the prone position to the vertical position may include: the first driving mechanism 4 is started to recover the first pulling rope 41, so that the first pulling rope 41 slowly pulls the arch rib 2, meanwhile, the second driving mechanism 71 on the reverse side reversely pulls the arch rib 2 through the second pulling rope 72, that is, in the process of turning over the arch rib 2, the second driving mechanism 71 gradually releases the second pulling rope 72, and the second pulling rope 72 is always in a tightened state in the process of turning over the arch rib 2, thereby providing the stable guarantee of excessive pulling and temporary wind resistance for the turning over of the arch rib 2.
In some optional embodiments, after the first driving mechanism 4 is activated to cause the first driving mechanism 4 to pull the rib 2 through the first pulling rope 41, and the rib 2 rotates from the prone position to the vertical position, the method may further include: after the arch rib 2 is vertically rotated in place in situ, the arch springing hinge 3 is locked, in this embodiment, the welding mode is adopted to firmly lock the arch springing hinge 3, and the cushion seat 9 can be supported between the bottom surface of the arch rib 2 and the arch seat 1, in this embodiment, the cushion seat 9 can be a temporary support seat, the cushion seat 9 is arranged at one end of the arch rib 2 where the arch springing hinge 3 is not arranged, after the temporary cushion seat 9 is changed into a permanent support seat, concrete can be poured at the arch springing hinge 3 and the permanent support seat to form the arch springing, and finally, auxiliary facilities such as the pulling frame 5, the bogie 6, the first driving mechanism 4 and the second driving mechanism 71 can be dismantled, so that the integral in-situ rotation turning construction of the arch rib 2 is completed.
The principles of the installation system and the installation method suitable for the arch rib provided by the embodiment of the invention are as follows:
because the arch rib 2 lies on one side of the arch support 1, the arch rib 2 can be firstly assembled into a whole section by section in a lying position on one side of the arch support 1, the height of each section of the arch rib 2 from a foundation is the same in the assembling process, high-altitude butt joint is not needed, the high-altitude operation of the arch rib 2 is converted into ground operation, and after the assembling is finished, the arch rib 2 can be pulled up from the lying position to rotate to a vertical state through the first driving mechanism 4 and the first pulling rope 41, meanwhile, the arch foot turning hinge 3 can provide a certain range of angle when the arch rib 2 turns over, and the effect in the rotating process is transferred to the arch support 1, so that the workload of assembling the arch rib 2 on the ground is small, the assembling difficulty is greatly reduced, the working efficiency is improved, the construction is safe and reliable, and the assembling quality on the ground is better; meanwhile, a large crane or a special crane is not needed, the adaptability is strong, temporary facilities and investment are less, the arrangement and management of a construction site are convenient, and the operation is simple and controllable; in the process of turning over and turning over the arch rib 2, the arch seat 1 is fully utilized as a rigid body to resist partial action effect of turning over and reduce loads of other machines, the integral temperature of the arch rib 2 is good in construction, and the arch rib 2 does not need to be closed and converted in the air, so that the line shape and secondary stress of the structure of the arch rib 2 are easier to guarantee and control.
In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
It is to be noted that, in the present invention, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A mounting system for a rib, comprising:
an arch support (1);
the arch rib (2) is laid on one side of the arch base (1), and the arch rib (2) is connected with the arch base (1) through an arch foot rotating hinge (3) so that the arch rib (2) can rotate along the transverse bridge direction relative to the arch base (1);
the first driving mechanism (4) and the arch rib (2) are respectively positioned at two opposite sides of the arch support (1), and the first driving mechanism (4) is connected with one side of the arch rib (2) through a first dragging rope (41) and is used for dragging the arch rib (2) to turn over integrally.
2. A mounting system for a rib as claimed in claim 1, wherein:
the first haul line (41) is connected to the rib (2) by a haul frame (5), and when the rib (2) is rotated to a vertical position, the axis of the haul frame (5) is substantially collinear with the first haul line (41).
3. A mounting system for a rib as claimed in claim 1, characterised in that between said first driving means (4) and said abutment (1) there is a bogie (6), said bogie (6) comprising:
a frame body (61) fixed to a foundation;
a steering wheel (62) mounted on the top of the frame body (61), and the first drag rope (41) is wound around the steering wheel (62).
4. A mounting system for a rib as claimed in claim 3, characterised in that said bogie (6) further comprises:
a balance weight provided to the frame body (61);
and one end of the balance lifting rope is fixed on the frame body (61) or the foundation, and the other end of the balance lifting rope is connected with the first dragging rope (41).
5. A mounting system for a rib as claimed in claim 1, wherein:
the mounting system further comprises a reverse pulling safety (7), the reverse pulling safety (7) being located on opposite sides of the rib (2) with the first drive mechanism (4), the reverse pulling safety (7) comprising:
a second drive mechanism (71) fixed to the foundation;
and a second dragging rope (72) with one end connected with the arch rib (2) and the other end connected with the second driving mechanism (71).
6. A method of installing a mounting system for a rib as claimed in claim 1, including the steps of:
the arch ribs (2) are spliced into a whole section by section in a prone position;
two ends of the arch rib (2) are connected with the arch support (1) through an arch foot rotating hinge (3);
and starting the first driving mechanism (4), so that the first driving mechanism (4) pulls the arch rib (2) through a first pulling rope (41), and the arch rib (2) rotates around the arch foot hinge (3) from the horizontal state to the vertical state.
7. The installation method according to claim 6, characterized in that said assembling, segment by segment, in a lying position, of the rib (2) into a whole comprises:
an assembling buttress (8) is arranged on one side of the arch seat (1);
assembling the arch rib (2) on the assembling buttress (8) section by section in a prone position, adjusting the linearity of the arch rib (2), and welding the arch rib (2) into a whole.
8. The mounting method according to claim 6, wherein the mounting system further comprises a bogie (6), the bogie (6) comprising a frame body (61) and a steering wheel (62), and before activating the first driving mechanism (4) to cause the first driving mechanism (4) to pull the rib (2) through the first pulling rope (41), the rib (2) being rotated from the lying position to the upright position, further comprising:
fixing the first driving mechanism (4) on a foundation according to a preset position;
fixing the bogie (6) on a foundation according to a preset position, wherein the bogie (6) is positioned between the first driving mechanism (4) and the arch support (1);
connecting the first drive mechanism (4) with the rib (2) using a first haul line (41), while the first haul line (41) is wound around the steering wheel (62).
9. The mounting method according to claim 6, wherein the mounting system further comprises a reverse pull safety (7), the reverse pull safety (7) comprising a second drive mechanism (71) and a second pull cord (72),
the actuating the first drive mechanism (4) to cause the first drive mechanism (4) to pull the arch rib (2) through a first pull-cord (41), the arch rib (2) rotating from a prone position to a vertical position, comprising:
and starting the first driving mechanism (4), slowly pulling up the arch rib (2) by the first dragging rope (41), and simultaneously, reversely pulling the arch rib (2) by the second driving mechanism (71) at the reverse side through the second dragging rope (72).
10. The mounting method according to claim 6, wherein after activating the first driving mechanism (4) to cause the first driving mechanism (4) to pull the rib (2) through the first pulling rope (41), the rib (2) being rotated from the horizontal position to the vertical position, further comprising:
and locking the arch springing rotary hinges (3), and supporting cushion seats (9) between the bottom surfaces of the arch ribs (2) and the arch seats (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110412806.1A CN113202030B (en) | 2021-04-16 | 2021-04-16 | Installation system and installation method suitable for arch rib |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110412806.1A CN113202030B (en) | 2021-04-16 | 2021-04-16 | Installation system and installation method suitable for arch rib |
Publications (2)
| Publication Number | Publication Date |
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| CN113202030A CN113202030A (en) | 2021-08-03 |
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| JP2000328519A (en) * | 1999-05-20 | 2000-11-28 | Taisei Corp | Arch bridge foundation structure |
| CN101200879A (en) * | 2007-12-04 | 2008-06-18 | 中铁大桥局股份有限公司 | Multi-arch bridge rib vertical turning technical method |
| JP2017048613A (en) * | 2015-09-02 | 2017-03-09 | 三井住友建設株式会社 | How to build an arch bridge |
| CN109505266A (en) * | 2018-12-07 | 2019-03-22 | 中铁局集团厦门建设工程有限公司 | A kind of sleeping splicing method in the scene of tubular arch |
| CN110318341A (en) * | 2019-07-02 | 2019-10-11 | 武船重型工程股份有限公司 | A kind of turning-over working method |
| CN110924309A (en) * | 2019-12-11 | 2020-03-27 | 广西路桥工程集团有限公司 | Arch rib segment overturning method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000328519A (en) * | 1999-05-20 | 2000-11-28 | Taisei Corp | Arch bridge foundation structure |
| CN101200879A (en) * | 2007-12-04 | 2008-06-18 | 中铁大桥局股份有限公司 | Multi-arch bridge rib vertical turning technical method |
| JP2017048613A (en) * | 2015-09-02 | 2017-03-09 | 三井住友建設株式会社 | How to build an arch bridge |
| CN109505266A (en) * | 2018-12-07 | 2019-03-22 | 中铁局集团厦门建设工程有限公司 | A kind of sleeping splicing method in the scene of tubular arch |
| CN110318341A (en) * | 2019-07-02 | 2019-10-11 | 武船重型工程股份有限公司 | A kind of turning-over working method |
| CN110924309A (en) * | 2019-12-11 | 2020-03-27 | 广西路桥工程集团有限公司 | Arch rib segment overturning method |
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