CN115418939A - Unit type prefabricated fast-assembling bridge expansion device and construction method - Google Patents
Unit type prefabricated fast-assembling bridge expansion device and construction method Download PDFInfo
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- CN115418939A CN115418939A CN202211080003.1A CN202211080003A CN115418939A CN 115418939 A CN115418939 A CN 115418939A CN 202211080003 A CN202211080003 A CN 202211080003A CN 115418939 A CN115418939 A CN 115418939A
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- leveling
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- 238000010276 construction Methods 0.000 title claims abstract description 21
- 239000004567 concrete Substances 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims description 21
- 230000008569 process Effects 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- 238000004873 anchoring Methods 0.000 claims description 8
- 239000000835 fiber Substances 0.000 claims description 7
- 239000004636 vulcanized rubber Substances 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 239000011178 precast concrete Substances 0.000 claims description 3
- 230000035939 shock Effects 0.000 claims description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 2
- 238000004078 waterproofing Methods 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 12
- 239000000243 solution Substances 0.000 description 12
- 238000011161 development Methods 0.000 description 6
- 230000006872 improvement Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
- 244000126211 Hericium coralloides Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
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- 230000014509 gene expression Effects 0.000 description 1
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- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
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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
- E01D19/00—Structural or constructional details of bridges
- E01D19/06—Arrangement, construction or bridging of expansion joints
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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
- E01D19/00—Structural or constructional details of bridges
- E01D19/08—Damp-proof or other insulating layers; Drainage arrangements or devices ; Bridge deck surfacings
- E01D19/083—Waterproofing of bridge decks; Other insulations for bridges, e.g. thermal ; Bridge deck surfacings
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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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Abstract
The invention relates to the field of road and bridge expansion joints, in particular to a unit type prefabricated quick-mounting bridge expansion device and a construction method. The telescopic device comprises a comb plate, the comb plate and concrete are prefabricated into an integral unit module, a leveling upper sleeve (71) corresponding to the telescopic leveling system is arranged on the unit module, and a leveling bolt (73) can be placed in the leveling upper sleeve (71); at least one leveling upper sleeve (71) is included at the side of the integrated unit module. Compared with the prior art, the invention adopting the technical scheme has the following beneficial effects: firstly, the construction can be carried out quickly, and secondly, the micro leveling can be realized.
Description
Technical Field
The invention relates to the field of road and bridge expansion joints, in particular to a unit type prefabricated quick-mounting bridge expansion device and a construction method.
Background
Query is carried out on a public database of Chinese patent by taking 'leveling and expansion joint and sleeve' as abstract key words
The patent CN206396629U and a quick-mounting comb plate expansion device are inquired;
this technique is applied to leveling boards;
however, in the construction process of the expansion device of the expansion joint in the prior art, a large amount of grouting is needed, and the after-ripening and solidification of concrete need time; the construction period of the road bridge construction is influenced to a certain extent.
This patent is mainly improved comb-tooth formula bridge telescoping device.
Disclosure of Invention
The purpose of the invention is as follows: in order to provide a unit type prefabricated quick-assembly bridge expansion device and a construction method with better effects, the concrete purpose is to see a plurality of substantial technical effects of concrete implementation parts.
In order to achieve the purpose, the invention adopts the following technical scheme:
a unit type prefabricated fast-assembling bridge expansion device is characterized in that the expansion device comprises a comb plate, the comb plate and concrete are prefabricated into an integral unit module, a leveling upper sleeve 71 corresponding to a telescopic leveling system is arranged on the unit module, and a leveling bolt 73 can be placed in the leveling upper sleeve 71; at least one leveling upper sleeve 71 is included at the side of the integrated unit module.
The invention has the further technical scheme that the integral unit module also comprises more than one fixed sleeve which can be used for installing the bolt, and the fixed sleeve is a stepped sleeve upper half part 22.
A further technical solution of the present invention is that the upper half portions 22 of the stepped sleeves are uniformly distributed on the integrated unit modules.
The invention further adopts the technical scheme that the two sides of the bridge expansion joint comprise corresponding parts for placing the integral unit modules, and the beam bodies on the two sides of the bridge expansion joint comprise corresponding parts on which leveling lower sleeves 72 vertically corresponding to the leveling upper sleeves 71 are arranged; one inner wall of the leveling upper sleeve 71 and the leveling lower sleeve 72 is smooth, and the other inner wall comprises threads; the corresponding leveling bolt 73 also has a portion of smooth outer wall, and a portion of containing threads; screwing the bolt from the leveling gap 10 can rotate the leveling bolt 73 to adjust the leveling degree of the unit module.
The invention further adopts the technical scheme that the telescopic leveling system comprises four groups which are distributed on the side of the integral unit module.
The invention has the further technical scheme that beam bodies on two sides of the bridge expansion joint comprise corresponding parts, and the parts comprise a lower stepped sleeve part 23 corresponding to the upper stepped sleeve part 22; the bolts 4 are installed in the stepped sleeve upper half 22 and the stepped sleeve lower half 23 to fix the integrated unit modules.
The invention further adopts the technical scheme that the integral anchoring plate 1 is welded at the lower part of the comb plate and used for supporting the whole comb plate; a plurality of transverse steel bars 6 are arranged in the integral anchoring plate.
The invention further adopts the technical scheme that the comb plate comprises a fixed comb plate and a sliding comb plate, and the comb plates are symmetrically arranged or are in a seam crossing type.
A construction method of a unit type prefabricated fast-assembling bridge expansion device is characterized in that the device is used, and comprises the following steps;
prefabricating a unit: a cavity is enclosed by a detachable wood template or a one-step molding steel template, the interior of the cavity is filled with concrete or steel fiber concrete, and the leveling upper sleeve 71 and the upper half part 22 of the stepped sleeve are wrapped by the concrete at the same time; pre-burying or pouring a prefabricated leveling lower sleeve 72 and a step sleeve lower half part 23 at openings at two sides of the expansion joint;
leveling: the telescopic device is quickly leveled through a telescopic leveling system 7, the upper part of the telescopic leveling system is a leveling upper sleeve 71 which is pre-embedded in precast concrete, the lower part of the telescopic leveling system is a leveling lower sleeve 72 which is pre-embedded in a beam body, when the telescopic device is installed, the telescopic device is quickly leveled by matching a high-strength bolt, an upper sleeve and a lower sleeve, and the telescopic device and the beam body are firmly connected together through the high-strength bolt; during the hoisting process of the bolts, the leveling bolts 73 are rotated by screwing the bolts through the leveling gaps 10 so as to adjust the leveling degree of the unit modules;
fixing: the inner side of the stepped sleeve is provided with internal threads matched with the high-strength bolt, the high-strength bolt is connected with the sleeve through threads, and the stepped sleeve vertically penetrates through the upper surface and the lower surface of the telescopic device; the stepped sleeve comprises two parts, namely an upper half part 22 of the stepped sleeve and a lower half part 23 of the stepped sleeve, wherein the upper half part 22 of the stepped sleeve is embedded in the telescopic device, the lower half part 23 of the stepped sleeve is embedded in a beam body at a predetermined position, the two parts are completely matched into the stepped sleeve when the telescopic device is installed, and the whole telescopic device is stable and firm through the connection of the high-strength bolts.
The invention further adopts the technical scheme that the method also comprises the step of arranging a vulcanized rubber layer or grouting between the integral unit and the beam body; the vulcanized rubber layer is used for water resistance and shock absorption; the grouting is used for filling the space, and steel fiber concrete is adopted for grouting.
The invention further adopts the technical scheme that the bridge deck further comprises a special wrench system without extending hands, the system comprises a bottom support sleeve 139 capable of being supported on the bridge deck, the bottom support sleeve 139 comprises a hole, an inner ring 138 can rotate in the bottom support sleeve 139, and a support shaft 137 is fixed above the inner ring 138; the upper portion of the supporting shaft 137 comprises a horizontal middle shaft 135 and an upper and lower turning sleeve 136 capable of rotating around the middle shaft 135, the upper and lower turning sleeve 136 is fixedly connected with an upper and lower turning shaft 134, the upper and lower turning shaft 134 is fixedly connected with a thread pushing shaft 133, the thread pushing shaft 133 is fixedly connected with a wrench 131 and can drive the wrench 131 to rotate, and further, the wrench head 132 is driven to rotate to further drive the leveling bolt in the leveling gap 12 to rotate.
The further technical solution of the invention is that the bottom support sleeve 139 is supported on the bridge deck; the up-down flip sleeve 136 can rotate about the middle shaft 135; further pushing the wrench head 132 to fit the leveling bolt in the leveling gap 12; at this time, the hand pushes the screw to push the shaft 133 to rotate left and right, so as to perform leveling and tightening; a camera is stuck on the wrench, the camera is in communication connection with the mobile phone, and the leveling gap 12 can be seen on the mobile phone on the bridge floor.
Compared with the prior art, the invention adopting the technical scheme has the following beneficial effects: firstly, the construction can be carried out quickly, and secondly, the microscopic leveling can be realized.
Drawings
To further illustrate the present invention, further description is provided below with reference to the accompanying drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an unlabeled schematic diagram of FIG. 1;
FIG. 3 is a schematic structural diagram of a telescopic leveling system of the telescopic device;
FIG. 4 is a partial perspective view of the overall device;
FIG. 5 is a schematic perspective side view of the integrated device;
FIG. 6 is a top view of the device;
FIG. 7 is a perspective view of the overall device;
FIG. 8 is a perspective view of the invention;
wherein: 1. an integral anchoring plate; 2. a stepped sleeve; 22. the upper half part of the stepped sleeve; 23. the lower half part of the stepped sleeve; 3. a sliding comb plate; 4. a bolt; 5. fixing the comb plate; 6. traversing the reinforcing steel bars; 7. the telescopic device is a telescopic leveling system; 8. a bridge deck pavement layer; 9. a rubber waterstop; 71. leveling the upper sleeve; 72. leveling the lower sleeve; 73. leveling bolts; 10. the gap is leveled.
Detailed Description
The present invention will be further illustrated with reference to the accompanying drawings and specific embodiments, which are to be understood as merely illustrative of the invention and not as limiting the scope of the invention. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "top", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the devices or elements referred to must have specific orientations, be constructed and operated in specific orientations, and thus, should not be construed as limiting the present invention. Furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; 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 in specific cases to those skilled in the art.
It is noted that, herein, relational terms such as first and second, and the like may be 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.
The patent provides a plurality of parallel schemes, and different expressions belong to an improved scheme based on a basic scheme or a parallel scheme. Each solution has its own unique features. In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other. The fixing means, which is not described herein, may be any one of screw fixing, bolt fixing, or glue bonding.
The first embodiment is as follows: with reference to all of the accompanying drawings; a unit type prefabricated fast-assembling bridge expansion device is characterized in that the expansion device comprises a comb plate, the comb plate and concrete are prefabricated into an integral unit module, a leveling upper sleeve 71 corresponding to a telescopic leveling system is arranged on the unit module, and a leveling bolt 73 can be placed in the leveling upper sleeve 71; at least one leveling upper sleeve 71 is included at the side of the integrated unit module. The technical scheme of the invention has the following substantial technical effects and the realization process, namely the basic functions: the embodiment is an individual which can be sold independently, and the lower solutions are all parallel solutions or improved solutions.
Prefabricating a unit: a cavity is enclosed by a detachable wood template or a one-step molding steel template, the interior of the cavity is filled with concrete or steel fiber concrete, and the leveling upper sleeve 71 and the upper half part 22 of the stepped sleeve are wrapped by the concrete at the same time; pre-burying or pouring a prefabricated leveling lower sleeve 72 and a step sleeve lower half part 23 at openings at two sides of the expansion joint;
leveling: the telescopic device is quickly leveled through a telescopic leveling system 7, the upper part of the telescopic leveling system is a leveling upper sleeve 71 which is pre-embedded in precast concrete, the lower part of the telescopic leveling system is a leveling lower sleeve 72 which is pre-embedded in a beam body, when the telescopic device is installed, the telescopic device is quickly leveled by matching a high-strength bolt, an upper sleeve and a lower sleeve, and the telescopic device and the beam body are firmly connected together through the high-strength bolt; during the hoisting process of the bolts, the bolts are screwed through the leveling gaps 10 to enable the leveling bolts 73 to rotate so as to adjust the leveling degree of the unit modules;
firstly, the construction can be carried out quickly, and secondly, the microscopic leveling can be realized.
The second embodiment: as a further improvement or a parallel solution or an alternative independent solution, the integral unit module further comprises more than one fixing sleeve capable of mounting the bolt, and the fixing sleeve is a stepped sleeve upper half part 22. The technical scheme of the invention has the following substantial technical effects and the realization process, namely the basic functions: the embodiment is a matching structure of the first embodiment, and can realize integral leveling and fixing.
Example three: as a further development or in a parallel or alternatively independent solution, the stepped sleeve upper half 22 is distributed over the entire unit module. The technical scheme of the invention has the following essential technical effects and the realization process, namely, the basic functions: can be uniformly distributed or arranged on the base plate at intervals, and is within the protection scope of the patent as long as the fixation can be realized.
Example four: as a further improvement scheme or a parallel scheme or an optional independent scheme, two sides of the bridge expansion joint comprise corresponding parts for placing the integral unit modules, and two side beam bodies of the bridge expansion joint comprise corresponding parts on which leveling lower sleeves 72 vertically corresponding to the leveling upper sleeves 71 are arranged; one inner wall of the leveling upper sleeve 71 and the leveling lower sleeve 72 is smooth, and the other inner wall comprises threads; the corresponding leveling bolt 73 also has a portion of smooth outer wall, and a portion of containing threads; screwing the bolt from the leveling gap 10 can rotate the leveling bolt 73 to adjust the leveling degree of the unit module. The technical scheme of the invention has the following substantial technical effects and the realization process, namely the basic functions: the smooth inner wall is convenient for rotation, and the thread rotation is for height adjustment.
Example five: as a further development or a side-by-side solution or an alternative independent solution, the telescopic leveling system comprises four groups, distributed on the sides of the integrated unit module. The technical scheme of the invention has the following substantial technical effects and the realization process, namely the basic functions: the number of the telescopic leveling systems can be adjusted as long as the adjustment is convenient.
Example six: as a further improvement scheme or a parallel scheme or an optional independent scheme, beam bodies on two sides of the bridge expansion joint comprise corresponding parts and comprise lower stepped sleeve halves 23 corresponding to the upper stepped sleeve halves 22; the bolts 4 are installed in the stepped sleeve upper half 22 and the stepped sleeve lower half 23 to fix the integrated unit modules. The technical scheme of the invention has the following substantial technical effects and the realization process, namely the basic functions: the embodiment provides a fixed knot constructs, and the convenience corresponds carries out the monolithic stationary. Fixing: the inner side of the stepped sleeve is provided with internal threads matched with the high-strength bolt, the high-strength bolt is connected with the sleeve through threads, and the stepped sleeve vertically penetrates through the upper surface and the lower surface of the telescopic device; the step sleeve comprises two parts, namely an upper half part 22 of the step sleeve and a lower half part 23 of the step sleeve, wherein the upper half part 22 of the step sleeve is embedded in the telescopic device, the lower half part 23 of the step sleeve is embedded in a beam body at a predetermined position, and the two parts are completely matched into the step sleeve when the telescopic device is installed, so that the whole telescopic device is stable and firm through the connection of high-strength bolts;
example seven: as a further development or a parallel development or an alternative independent development, the integral anchoring plate 1 is welded to the lower part of the comb plate for supporting the whole comb plate; a plurality of transverse steel bars 6 are arranged in the integral anchoring plate.
Example eight: as a further improvement, or a parallel scheme or an optional independent scheme, the comb plate comprises a fixed comb plate and a sliding comb plate, and the comb plates are symmetrically arranged comb plates or seam-crossing comb plates.
Example nine: as a further improved scheme or a parallel scheme or an optional independent scheme, the method also comprises the step of arranging a vulcanized rubber layer or grouting between the integral unit and the beam body; the vulcanized rubber layer is used for water resistance and shock absorption; the grouting is used for filling the space, and steel fiber concrete is adopted for grouting.
Creatively, the above effects exist independently, and the combination of the above results can be completed by a set of structure.
Generally speaking, by utilizing the integral anchoring plate, the comb plate, the stepped sleeve, the high-strength bolt and the telescopic device leveling system of the bridge telescopic device, a cavity is enclosed by a detachable wood mould or a one-step forming steel film, the cavity is filled with concrete or steel fiber concrete, and the parts are integrally wrapped; form a unit type prefabricated fast-assembling bridge expansion device. The telescopic device has the advantages of standardized installation, simple and quick installation, long service life and the like.
Example eleven: as a further development or in parallel or alternatively independently, a dedicated hands-free wrench system is also included, which comprises a bottom support sleeve 139 capable of being supported on the deck, the bottom support sleeve 139 comprising a hole, an inner ring 138 capable of rotating in the bottom support sleeve 139, a support shaft 137 fixed above the inner ring 138; the upper portion of the supporting shaft 137 comprises a horizontal middle shaft 135 and an upper and lower turning sleeve 136 capable of rotating around the middle shaft 135, the upper and lower turning sleeve 136 is fixedly connected with an upper and lower turning shaft 134, the upper and lower turning shaft 134 is fixedly connected with a thread pushing shaft 133, the thread pushing shaft 133 is fixedly connected with a wrench 131 and can drive the wrench 131 to rotate, and further, the wrench head 132 is driven to rotate to further drive the leveling bolt in the leveling gap 12 to rotate. The technical scheme of the invention has the following essential technical effects and the realization process, namely, the basic functions: the bottom support sleeve 139 is supported on the deck; the upper and lower overturning sleeves 136 can rotate around the middle shaft 135; further pushing the wrench head 132 to fit the leveling bolt in the leveling gap 12; at this time, the hand pushes the screw to push the shaft 133 to rotate left and right, so as to perform leveling and tightening; a camera is stuck on the wrench, the camera is in communication connection with a mobile phone, and the leveling gap 12 can be seen on the mobile phone on the bridge floor.
In general, the technical problem is addressed: the construction is complicated, no matter be comb-tooth formula or modulus formula, all need skilled workman of a large amount of installation time and a large amount of skills, adopt technical scheme: directly preparing the materials in a factory, and then modularly transporting the materials to a site; the realization process of the technical scheme is modular installation and leveling; therefore, the technical problem can be solved certainly, and the realized technical effects are as follows: the adjustment is convenient, and the construction period is greatly shortened.
The method has the outstanding advantages that the method is quick to install, can greatly shorten the construction period, and takes a bridge two kilometers long as an example;
according to the general on-site concrete cast-in-place mode as the comparison of the prior art, the patent and the prior art are compared in detail:
| speed of construction | Difficulty of maintenance | Cost of labor | Whether it is possible to level and final flatness | |
| This patent | The construction speed is improved by nearly 1 time | Simple maintenance and replacement | Saving nearly half of labor cost | The leveling speed is high, and the final flatness is good |
| Prior Art | The construction speed is slow | The difficulty coefficient is larger | The labor cost is high | The leveling speed is slow, and the final flatness is poor |
It should be noted that the solutions provided in this patent include their own basic solutions, which are independent of each other and not restricted to each other, but they may be combined with each other without conflict, so as to achieve a plurality of effects.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, and the invention is to be limited to the embodiments described above.
Claims (10)
1. A unit type prefabricated fast-assembling bridge expansion device is characterized in that the expansion device comprises a comb plate, the comb plate and concrete are prefabricated into an integral unit module, leveling upper sleeves (71) corresponding to a telescopic leveling system are arranged on the unit module, and leveling bolts (73) can be placed in the leveling upper sleeves (71); at least one leveling upper sleeve (71) is included at the side of the integrated unit module.
2. The expansion device of claim 1, further comprising more than one fixing sleeve for mounting bolts, wherein the fixing sleeve is an upper half (22) of the stepped sleeve.
3. A unit prefabricated quick-assembling bridge expansion device according to claim 2, characterized in that the upper half parts (22) of said stepped sleeves are uniformly distributed on the integral unit modules.
4. A unit type prefabricated quick-assembling bridge expansion device as claimed in claim 2, wherein, the bridge expansion joint comprises corresponding parts at both sides thereof for placing integral unit modules, and the beam bodies at both sides thereof comprise corresponding parts on which leveling lower sleeves (72) corresponding to the leveling upper sleeves (71) up and down are arranged; one inner wall of the leveling upper sleeve (71) and one inner wall of the leveling lower sleeve (72) are smooth, and the other inner wall of the leveling upper sleeve and the leveling lower sleeve contains threads; the corresponding leveling bolt (73) has a smooth part of the outer wall and a part containing threads; screwing the bolt from the leveling clearance (10) can rotate the leveling bolt (73) so as to adjust the leveling degree of the unit module.
5. A unit type prefabricated quick-assembling bridge expansion device as claimed in claim 4, wherein the telescopic leveling system comprises four groups, and the four groups are distributed on the sides of the integral unit modules.
6. The unit-type prefabricated quick-mounting bridge expansion device as claimed in claim 2, wherein the beam bodies at both sides of the bridge expansion joint comprise corresponding parts and the lower parts (23) of the stepped sleeves corresponding to the upper parts (22) of the stepped sleeves; the bolts (4) are arranged in the upper half part (22) and the lower half part (23) of the stepped sleeve to fix the integral unit modules.
7. A unit type prefabricated quick-assembling bridge expansion device as claimed in claim 2, wherein the integral anchoring plate (1) is welded on the lower part of the comb plate for supporting the whole comb plate; a plurality of transverse reinforcing steel bars (6) are arranged in the integral anchoring plate; the comb plate comprises a fixed comb plate and a sliding comb plate, and the comb plate is a symmetrical comb plate or a seam crossing comb plate.
8. A modular prefabricated quick-mount bridge expansion device according to claim 1, further comprising a dedicated hands-free wrench system, said system comprising a bottom support sleeve (139) capable of being supported on a bridge deck, said bottom support sleeve (139) comprising a hole, an inner ring (138) capable of rotating in said bottom support sleeve (139), and a support shaft (137) fixed above said inner ring (138); the upper portion of the supporting shaft (137) comprises a horizontal middle shaft (135) and an upper and lower turning sleeve (136) capable of rotating around the middle shaft (135), the upper and lower turning sleeve (136) is fixedly connected with an upper and lower turning shaft (134), the upper and lower turning shaft (134) is fixedly connected with a thread pushing shaft (133), the thread pushing shaft (133) is fixedly connected with a wrench (131) and can drive the wrench (131) to rotate, and further, a wrench head (132) is driven to rotate to further drive a leveling bolt in the leveling gap (12) to rotate.
9. A construction method of a unit type prefabricated fast-assembling bridge expansion device is characterized in that the device of any one of claims 1 to 8 is utilized, and the construction method comprises the following steps;
prefabricating a unit: a cavity is enclosed by a detachable wooden template or a one-step molding steel template, concrete or steel fiber concrete is filled in the cavity, and the leveling upper sleeve (71) and the upper half part (22) of the stepped sleeve are wrapped by the concrete at the same time; opening holes are formed in the two sides of the expansion joint, and a prefabricated leveling lower sleeve (72) and a lower half part (23) of the stepped sleeve are embedded or poured;
leveling: the telescopic device is quickly leveled through a telescopic leveling system (7), the upper part of the telescopic leveling system is a leveling upper sleeve (71) which is pre-embedded in precast concrete, the lower part of the telescopic leveling system is a leveling lower sleeve (72) which is pre-embedded in a beam body, and when the telescopic device is installed, the telescopic device is quickly leveled by matching a high-strength bolt, an upper sleeve and a lower sleeve, and the telescopic device and the beam body are firmly connected together through the high-strength bolt; during the hoisting process of the bolts, the leveling bolts (73) are rotated by screwing the bolts through the leveling gaps (10) so as to adjust the leveling degree of the unit modules;
fixing: the inner side of the stepped sleeve is provided with internal threads matched with the high-strength bolt, the high-strength bolt is connected with the sleeve through threads, and the stepped sleeve vertically penetrates through the upper surface and the lower surface of the telescopic device; the stepped sleeve comprises two parts, namely an upper half part (22) of the stepped sleeve and a lower half part (23) of the stepped sleeve, wherein the upper half part (22) of the stepped sleeve is embedded in the telescopic device, the lower half part (23) of the stepped sleeve is embedded in a beam body at a predetermined position in advance, the two parts are completely combined into the stepped sleeve when the telescopic device is installed, and the whole telescopic device is stable and firm through the connection of high-strength bolts; also comprises a step of arranging a vulcanized rubber layer or grouting between the integral unit and the beam body; the vulcanized rubber layer is used for water proofing and shock absorption; the grouting is used for filling the space, and steel fiber concrete is adopted for grouting.
10. The construction method of the unit-type prefabricated fast-assembling bridge expansion device of claim 9,
the bottom support sleeve (139) is supported on the bridge deck;
the upper and lower overturning sleeves (136) can rotate around the middle shaft (135);
further pushing the wrench head (132) to fit the leveling bolt in the leveling gap (12);
at the moment, the screw thread pushing shaft (133) is pushed by hand to rotate left and right, and then leveling and tightening are carried out;
a camera is stuck on the wrench, the camera is in communication connection with the mobile phone, and the leveling gap (12) can be seen on the mobile phone on the bridge floor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211080003.1A CN115418939A (en) | 2022-09-05 | 2022-09-05 | Unit type prefabricated fast-assembling bridge expansion device and construction method |
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| CN202211080003.1A CN115418939A (en) | 2022-09-05 | 2022-09-05 | Unit type prefabricated fast-assembling bridge expansion device and construction method |
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Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1469128A1 (en) * | 2003-04-16 | 2004-10-20 | Hebag AG | Waterproof expansion joint construction |
| JP2008025320A (en) * | 2006-07-20 | 2008-02-07 | Masashi Wakabayashi | Multilayer structure type expansion device for road bridge |
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| CN215617712U (en) * | 2021-05-26 | 2022-01-25 | 邯郸钢铁集团有限责任公司 | Narrow and small space bolt fastening instrument of adjustable length |
| CN217997812U (en) * | 2022-09-05 | 2022-12-09 | 天津交科新材料有限公司 | Unit type prefabricated fast-assembling bridge expansion device |
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| EP1469128A1 (en) * | 2003-04-16 | 2004-10-20 | Hebag AG | Waterproof expansion joint construction |
| JP2008025320A (en) * | 2006-07-20 | 2008-02-07 | Masashi Wakabayashi | Multilayer structure type expansion device for road bridge |
| KR100911839B1 (en) * | 2009-03-09 | 2009-08-11 | (주)하이로드 | Expansion joint for underground driveways and construction method thereof |
| AU2010214742A1 (en) * | 2009-09-03 | 2011-03-17 | Illinois Tool Works Inc. | Expansion joints |
| CN204023401U (en) * | 2014-08-28 | 2014-12-17 | 西安公路研究院 | A kind of bidirectional modulation formula bridge expansion joint installation |
| CN207646604U (en) * | 2017-12-12 | 2018-07-24 | 衡水双盛工程橡胶有限公司 | Leveling multi-directional deflection comb plate, comb joint bridge extension joint is turned up in unit assembled damping |
| CN108312097A (en) * | 2018-04-11 | 2018-07-24 | 广州市优泰安防技术有限公司 | A kind of adjustable nut spanner suitable for elongate slot |
| KR20200023090A (en) * | 2018-08-24 | 2020-03-04 | 대봉비엠텍 주식회사 | Installation structure of finger type expansion joint |
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| CN210968648U (en) * | 2019-08-29 | 2020-07-10 | 南京地铁运营有限责任公司 | Bridge sleeper bolt fixing device |
| CN112538817A (en) * | 2020-12-14 | 2021-03-23 | 衡水安夙路桥材料有限公司 | Assembled bridge expansion joint and construction process |
| CN215617712U (en) * | 2021-05-26 | 2022-01-25 | 邯郸钢铁集团有限责任公司 | Narrow and small space bolt fastening instrument of adjustable length |
| CN113502736A (en) * | 2021-06-16 | 2021-10-15 | 宁波路宝科技实业集团有限公司 | Bridge expansion joint device and installation method thereof |
| CN217997812U (en) * | 2022-09-05 | 2022-12-09 | 天津交科新材料有限公司 | Unit type prefabricated fast-assembling bridge expansion device |
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