CN113957786A - Telescopic deformation coordination structure for beam end of assembled bridge and mounting method thereof - Google Patents
Telescopic deformation coordination structure for beam end of assembled bridge and mounting method thereof Download PDFInfo
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- CN113957786A CN113957786A CN202111286667.9A CN202111286667A CN113957786A CN 113957786 A CN113957786 A CN 113957786A CN 202111286667 A CN202111286667 A CN 202111286667A CN 113957786 A CN113957786 A CN 113957786A
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000006073 displacement reaction Methods 0.000 claims abstract description 63
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 54
- 239000010959 steel Substances 0.000 claims abstract description 54
- 238000010276 construction Methods 0.000 claims abstract description 14
- 238000009434 installation Methods 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims description 8
- 238000013461 design Methods 0.000 claims description 6
- 239000011324 bead Substances 0.000 claims description 2
- 210000001503 joint Anatomy 0.000 abstract description 6
- 230000003139 buffering effect Effects 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000087 stabilizing effect 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
- E01D19/06—Arrangement, construction or bridging of expansion joints
- E01D19/062—Joints having intermediate beams
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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
- E01D19/065—Joints having sliding plates
-
- 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 discloses a telescopic deformation coordination structure of an assembled bridge end and an installation method thereof, belonging to the technical field of bridge construction, wherein the structure comprises a first beam end and a second beam end which are in gap butt joint; a plurality of first displacement box grooves and second displacement box grooves with symmetrical notches are respectively formed in the side end faces of the first beam end and the second beam end along the transverse direction of the gap; a supporting beam crossing the gap is arranged in the first displacement box groove and the second displacement box groove in a sliding manner along the depth direction of the box grooves; the supporting beam is fixedly provided with I-steel, one end of a top leg plate of the I-steel is connected with a first beam end above the first displacement box groove through a buffer block, and the other end of the top leg plate of the I-steel is connected with a second beam end above the second displacement box groove through a buffer block. The invention can play a role in buffering and protecting the telescopic deformation of the assembled bridge end, and the structure is easy to replace and install and is convenient to maintain during operation.
Description
Technical Field
The invention belongs to the technical field of bridge construction, and particularly relates to a telescopic deformation coordination structure of an assembled bridge end and an installation method thereof.
Background
At present, an assembled bridge generally needs to be provided with expansion joints at the beam ends, and in the conventional method, after the assembled bridge is installed on site, the beam ends are chiseled at the joint positions, so that the expansion devices are installed, and concrete is poured, but the conventional method generally needs about 15 days to complete the construction period, and the time consumption is long. Meanwhile, once the traditional telescopic device is damaged, the beam end needs to be destructively dismantled and replaced, the maintenance period is long, and the normal traffic is influenced. Therefore, it is necessary to solve the above technical problems and to research a structure or a technology that can meet the requirements related to expansion and contraction deformation and is convenient to disassemble and maintain on the premise of meeting the technical requirements of expansion joints at the beam ends of bridges.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a telescopic deformation coordination structure of an assembled bridge end and an installation method thereof, which can play a role in buffering and protecting the telescopic deformation of the assembled bridge end, and the structure is easy to replace and install and is convenient to maintain during operation.
In order to achieve the purpose, the invention is realized by adopting the following technical scheme:
in a first aspect, the present invention provides a coordinated telescopic deformation structure for an assembled bridge end, comprising:
a first beam end and a second beam end which are butted in a gap;
a plurality of first displacement box grooves and second displacement box grooves with symmetrical notches are respectively formed in the side end faces of the first beam end and the second beam end along the transverse direction of the gap;
a supporting beam crossing the gap is arranged in the first displacement box groove and the second displacement box groove in a sliding manner along the depth direction of the box grooves;
the supporting beam is fixedly provided with I-steel, one end of a top leg plate of the I-steel is connected with a first beam end above the first displacement box groove through a buffer block, and the other end of the top leg plate of the I-steel is connected with a second beam end above the second displacement box groove through a buffer block.
Furthermore, the bottom leg plate of the I-shaped steel transversely crosses and is fixedly screwed on the plurality of supporting cross beams along the gap.
Furthermore, C-shaped inner curled edge first notches extending transversely along the gap are formed in two ends of the top leg plate of the I-shaped steel respectively, C-shaped inner curled edges and second notches opposite to the first notches are formed in the first beam end and the second beam end respectively, and two side ends of the buffer block are buckled in the first notches and the second notches in a sealing mode respectively.
Further, the second notch is a C-shaped inward-curled channel steel fixedly welded to the first beam end and the second beam end.
Furthermore, the buffer block is a long-strip-shaped rubber strip with two side end shapes respectively matched with the first notch and the second notch.
Further, the inner end angle of the C-shaped inner curled edge of the first notch and/or the second notch is in a right angle structure or a circular arc structure.
Furthermore, two parallel guide rails are arranged in the first displacement box groove and the second displacement box groove along the depth direction of the box grooves, and a plurality of pulleys sliding along the guide rails are arranged at the bottom of the supporting beam.
Furthermore, a plurality of studs provided with nuts are arranged on the top surface of the supporting cross beam, and a plurality of bolt holes for penetrating the studs are formed in the bottom leg plate of the I-shaped steel.
Further, the first displacement tank groove and the second displacement tank groove are steel tank bodies which are respectively embedded in the first beam end and the second beam end and have openings at one ends; the depth of the first displacement box groove is larger than that of the second displacement box groove, and is not smaller than the length of the supporting beam.
On the other hand, the invention provides a mounting method of a coordinated telescopic deformation structure at the beam end of an assembled bridge, which comprises the following steps:
preparing a first beam end, a second beam end, a supporting beam, I-shaped steel and a buffer block according to construction design requirements;
placing a plurality of supporting cross beams in corresponding first displacement box grooves in a first beam end with larger box groove depth, hoisting the first beam end and a second beam end in place by using hoisting machinery, and measuring and adjusting the gap distance between the first beam end and the second beam end according to the construction design requirement;
a plurality of supporting cross beams span between the corresponding first displacement box groove and the second displacement box groove, and the position of each supporting cross beam is adjusted by moving a pulley at the bottom of each supporting cross beam along a slide rail in each box groove, so that the stud on each supporting cross beam is in a proper position connected with the I-shaped steel;
hoisting the I-steel by using hoisting machinery, transversely placing the I-steel between the gaps along the gaps, and fixedly and spirally connecting the I-steel to the plurality of supporting cross beams through threaded holes in the bottom leg plate;
and respectively sealing and buckling the two strip-shaped rubber strips in a first notch and a second notch which are opposite to each other on two sides of the I-shaped steel, and finishing the installation of the telescopic deformation coordination structure of the assembled bridge beam end.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the I-steel, the buffer block and the movable supporting beam are arranged between two adjacent butt-joint beam ends, so that the telescopic deformation of the beam end of the assembled bridge can be buffered and protected, the field construction period is shortened, the structure is easy to replace and install, and the maintenance during operation is convenient;
the I-shaped steel and the beam end are sealed and buckled with a buffer block (a rubber strip and the like) through a C-shaped inward-rolling notch, so that the buffer block can buffer the expansion deformation smoothly and can also play a role in sealing and protecting the expansion joint;
the supporting beam can slide in the displacement box groove at the beam end, and the position can be adjusted during installation, so that the beam is convenient to adapt to different telescopic structures and is convenient to install;
and in the telescopic deformation process, the supporting beam is communicated with the I-shaped steel fixedly arranged on the supporting beam, so that the position sliding fine adjustment can be carried out, and the I-shaped steel is firmly connected with the rubber strip buffer block under the deformation stress and has a stable structure.
Drawings
FIG. 1 is a schematic cross-sectional view of a coordinated telescoping deformation of an assembled bridge end provided in accordance with an embodiment of the invention;
FIG. 2 is a cross-sectional view of an I-steel with a right angle inner end angle of the inner curl according to an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of an I-steel with an inner end angle of an inside curl being rounded according to an embodiment of the invention;
FIG. 4 is a side cross-sectional view of a support beam provided in accordance with an embodiment of the present invention;
FIG. 5 is a side cross-sectional view of a beam end provided in accordance with an embodiment of the present invention;
FIG. 6 is an elevation view of a beam end provided in accordance with an embodiment of the present invention;
fig. 7 is a top view of an assembled bridge-end coordinated telescopic deformation configuration provided in accordance with an embodiment of the present invention.
In the figure:
1. a first beam end; 2. a second beam end; 3. a support beam; 4. i-shaped steel; 5. a buffer block;
101. a first displacement tank slot; 102. a second displacement tank; 103. a guide rail; 104. a second notch;
301. a pulley; 302. a stud; 401. a bottom leg plate; 402. a top leg plate; 403. a waist panel;
404. a first notch; 405. bolt holes; 406. inward curling; 407. the inner end angle.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
As shown in fig. 1, an embodiment of the present invention provides a fabricated bridge end stretching deformation coordination structure, which includes:
a first beam end 1 and a second beam end 2 which are in gap butt joint;
a plurality of first displacement box grooves 101 and second displacement box grooves 102 with symmetrical notches are respectively formed in the side end faces of the first beam end 1 and the second beam end 2 along the transverse direction of the gap;
a supporting beam 3 crossing the gap is arranged in the first displacement box groove 101 and the second displacement box groove 102 in a sliding manner along the depth direction of the box grooves;
i-steel 4 is fixedly arranged on the supporting cross beam 3, one end of a top leg plate 402 of the I-steel 4 is connected with a first beam end 1 above the first displacement box groove 101 through a buffer block 5, and the other end of the top leg plate is connected with a second beam end 2 above the second displacement box groove 102 through the buffer block 5.
The invention provides a coordinated telescopic deformation structure of an assembled bridge end, which can play a role in buffering and protecting the telescopic deformation of the assembled bridge end, is easy to replace and install and is convenient to maintain during operation.
In some embodiments, as shown in fig. 7, a first displacement box groove 101 and a second displacement box groove 102 with symmetrical notches are respectively formed on the side end surfaces of the first beam end 1 and the second beam end 2 along the transverse direction of the gap. The i-steel 4 is strip-shaped, and the bottom leg plate 401 transversely crosses and is fixedly screwed on the plurality of supporting cross beams 3 along the gap. For convenience of construction, the length of the I-shaped steel 4 is equal to that of a telescopic gap between beam ends.
As shown in fig. 2 and 3, the i-beam 4 includes a top leg plate 402 and a bottom leg plate 401 connected by a waist plate 403. The two ends of the top leg plate 402 of the i-steel 4 are respectively provided with a C-shaped internal curling first notch 404 extending along the slit, and the opening direction of the notch faces the extending direction of the two ends of the top leg plate 402.
As shown in fig. 5, the first beam end 1 and the second beam end 2 are respectively provided with a second notch 104 that is C-shaped inward curled and is opposite to the first notch 404, and the second notch 104 is respectively disposed above the plurality of first displacement box grooves 101 and the plurality of second displacement box grooves 102 on the first beam end 1 and the second beam end 2 and extends along the slit in the transverse direction.
The opening directions of the corresponding first notch 404 and the second notch 104 are opposite, so that the buffer block 5 for sealing and buffering can be conveniently clamped.
Specifically, the second notch 104 is a C-shaped inward-curled channel steel fixedly welded to the first beam end 1 and the second beam end 2.
As shown in fig. 2 and 3, the inner end corner 407 of the C-shaped internal bead 406 of the first notch 404 and/or the second notch 104 is in a right angle configuration or a circular arc configuration. The inner curled edge 406 is used for fastening a buckle and preventing the buffer block 5 (rubber strips and the like) from falling off, and can reduce stress concentration in the process of telescopic deformation; the inner end angle 407 arc structure is more favorable for the disassembly and assembly of the rubber strip.
As shown in fig. 1, the shapes of the two ends of the buffer block 5 are respectively matched with the shapes of the first notch 404 and the second notch 104, so that the notches which are buckled with each other are fully filled, and a sealing effect and a connection stabilizing effect are achieved. In the structural connection, two side ends of the buffer block 5 are respectively and hermetically buckled with the first notch 404 and the second notch 104 which are opposite.
Specifically, the buffer block 5 is made of an elastic material which is corrosion-resistant, friction-resistant, compressible and water-swellable, for example, the buffer block 5 is made of a rubber strip, and the length, the shape of two ends and the like of the rubber strip are matched with the first notch 404 and the second notch 104, so that the application and installation are facilitated.
In some embodiments, as shown in fig. 5 and 6, two parallel guide rails 103 are disposed in each of the first displacement tank 101 and the second displacement tank 102 along the tank depth direction.
As shown in fig. 4, the bottom of the supporting beam 3 is provided with a plurality of pulleys 301 sliding along the guide rails 103.
The supporting beam 3 can slide in the displacement box groove at the beam end, and the position can be adjusted during installation, so that the beam is convenient to adapt to different telescopic structures and is convenient to install; and in the process of telescopic deformation, the supporting beam 3 is communicated with the I-shaped steel 4 fixedly arranged on the supporting beam to perform position sliding fine adjustment, so that the I-shaped steel 4 is firmly connected with the rubber strip buffer block 5 under the deformation stress, and the structure is stable.
As shown in fig. 4, the top surface of the support beam 3 is provided with a plurality of studs 302 fitted with nuts.
As shown in fig. 2, a bottom leg plate 401 of the i-beam 4 is provided with a plurality of bolt holes 405 for passing the studs 302.
When the fixing device is installed, bolt holes 405 of the I-shaped steel 4 are sleeved on the studs 302 on the supporting cross beam 3 and then are screwed tightly by nuts.
In some embodiments, the first and second displacement box slots 101 and 102 are open-ended steel boxes pre-buried in the first and second beam ends 1 and 2, respectively.
The tank depth of the first displacement tank 101 is greater than that of the second displacement tank 102, and is not less than the length of the supporting beam 3.
The depth space of first displacement tank groove 101 and second displacement tank groove 102 is not of uniform size, and the depth of the great first displacement tank groove 101 of messenger's depth is not less than supporting beam 3's length, so that place supporting beam 3 in first displacement tank groove 101 when hoist and mount equipment, be used for adjusting supporting beam 3's position along guide rail 103 after two first beam ends 1 and second beam end 2 butt joints, be convenient for installation operation, when having avoided the depth not enough, when supporting beam 3 can not put into the tank groove, hinder the hoist and mount butt joint of two beam ends, construction efficiency is improved.
On the other hand, the embodiment of the invention also provides an installation method of the assembled bridge end telescopic deformation coordination structure, which comprises the following steps:
preparing a first beam end 1, a second beam end 2, a supporting cross beam 3, I-shaped steel 4 and a buffer block 5 according to construction design requirements;
placing a plurality of supporting cross beams 3 in corresponding first displacement box grooves 101 in a first beam end 1 with larger box groove depth, hoisting the first beam end 1 and a second beam end 2 in place by using hoisting machinery, and measuring and adjusting the gap distance between the first beam end 1 and the second beam end 2 according to the construction design requirement;
a plurality of supporting cross beams 3 are spanned between the corresponding first displacement box grooves 101 and second displacement box grooves 102, and the positions of the supporting cross beams 3 are adjusted by moving pulleys 301 at the bottoms of the supporting cross beams 3 along slide rails in the box grooves, so that studs 302 on the supporting cross beams 3 are in proper positions connected with the I-shaped steel 4;
hoisting the I-beams 4 by using hoisting machinery, transversely placing the I-beams 4 between the gaps along the gaps, and fixedly and spirally connecting the I-beams 4 to the plurality of supporting cross beams 3 through threaded holes in the bottom leg plate 401;
and respectively sealing and clamping the two strip-shaped rubber strips in the first notch 404 and the second notch 104 which are opposite to each other at two sides of the I-shaped steel 4 to finish the telescopic deformation coordination structure installation of the beam end of the assembled bridge.
According to the invention, the I-steel, the buffer block and the movable supporting beam are arranged between two adjacent butt-joint beam ends, so that the telescopic deformation of the beam end of the assembled bridge can be buffered and protected, the field construction period is shortened, the structure is easy to replace and install, and the maintenance during operation is convenient;
the I-shaped steel and the beam end are sealed and buckled with a buffer block (a rubber strip and the like) through a C-shaped inward-rolling notch, so that the buffer block can buffer the expansion deformation smoothly and can also play a role in sealing and protecting the expansion joint;
the supporting beam can slide in the displacement box groove at the beam end, and the position can be adjusted during installation, so that the beam is convenient to adapt to different telescopic structures and is convenient to install;
and in the telescopic deformation process, the supporting beam is communicated with the I-shaped steel fixedly arranged on the supporting beam, so that the position sliding fine adjustment can be carried out, and the I-shaped steel is firmly connected with the rubber strip buffer block under the deformation stress and has a stable structure.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a flexible structure of coordinating that warp of assembled bridge beam-ends which characterized in that includes:
a first beam end and a second beam end which are butted in a gap;
a plurality of first displacement box grooves and second displacement box grooves with symmetrical notches are respectively formed in the side end faces of the first beam end and the second beam end along the transverse direction of the gap;
a supporting beam crossing the gap is arranged in the first displacement box groove and the second displacement box groove in a sliding manner along the depth direction of the box grooves;
the supporting beam is fixedly provided with I-steel, one end of a top leg plate of the I-steel is connected with a first beam end above the first displacement box groove through a buffer block, and the other end of the top leg plate of the I-steel is connected with a second beam end above the second displacement box groove through a buffer block.
2. The fabricated bridge-end coordinated telescopic deformation structure of claim 1, wherein said i-beam bottom leg plate is fixedly bolted to a plurality of supporting cross-beams transversely across a gap.
3. The fabricated bridge-end stretching deformation coordination structure according to claim 2, wherein a C-shaped internal-curling first notch extending along the gap transversely is respectively arranged at two ends of the top leg plate of the i-steel, a C-shaped internal-curling second notch opposite to the first notch is respectively arranged at the first beam end and the second beam end, and two side ends of the buffer block are respectively and hermetically buckled with the opposite first notch and the opposite second notch.
4. The fabricated bridge-end telescoping deformation coordinated construction of claim 3, wherein said second notch is a C-shaped internally crimped channel steel fixedly welded to said first and second beam ends.
5. The fabricated bridge-end expansion deformation coordination structure according to claim 4, wherein the buffer block is an elongated rubber strip with two side ends matched with the first notch and the second notch respectively.
6. The fabricated bridge-end concertina deformation configuration of claim 3, wherein the inner end corner of the C-shaped inner bead of the first and/or second notch is in a right angle configuration or a circular arc configuration.
7. The fabricated bridge-end stretching deformation coordination structure according to claim 1, wherein two parallel guide rails are arranged in the first displacement box groove and the second displacement box groove along the depth direction of the box grooves, and a plurality of pulleys sliding along the guide rails are arranged at the bottom of the supporting beam.
8. The structure of claim 7, wherein the top surface of the supporting beam is provided with a plurality of studs with nuts, and the bottom leg plate of the I-steel is provided with a plurality of bolt holes for the studs to pass through.
9. The fabricated bridge-end telescopic deformation coordination structure according to claim 1, wherein the first displacement tank groove and the second displacement tank groove are steel tank bodies which are respectively embedded in the first beam end and the second beam end and are provided with openings at one ends;
the depth of the first displacement box groove is larger than that of the second displacement box groove, and is not smaller than the length of the supporting beam.
10. A mounting method of a telescopic deformation coordination structure of an assembled bridge end is characterized by comprising the following steps:
preparing a first beam end, a second beam end, a supporting beam, I-shaped steel and a buffer block according to construction design requirements;
placing a plurality of supporting cross beams in corresponding first displacement box grooves in a first beam end with larger box groove depth, hoisting the first beam end and a second beam end in place by using hoisting machinery, and measuring and adjusting the gap distance between the first beam end and the second beam end according to the construction design requirement;
a plurality of supporting cross beams span between the corresponding first displacement box groove and the second displacement box groove, and the position of each supporting cross beam is adjusted by moving a pulley at the bottom of each supporting cross beam along a slide rail in each box groove, so that the stud on each supporting cross beam is in a proper position connected with the I-shaped steel;
hoisting the I-steel by using hoisting machinery, transversely placing the I-steel between the gaps along the gaps, and fixedly and spirally connecting the I-steel to the plurality of supporting cross beams through threaded holes in the bottom leg plate;
and respectively sealing and buckling the two strip-shaped rubber strips in a first notch and a second notch which are opposite to each other on two sides of the I-shaped steel, and finishing the installation of the telescopic deformation coordination structure of the assembled bridge beam end.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114991001A (en) * | 2022-05-20 | 2022-09-02 | 苏交科集团股份有限公司 | Easy-to-overhaul spliced bridge expansion joint structure and construction method thereof |
| CN115182243A (en) * | 2022-08-12 | 2022-10-14 | 苏交科集团股份有限公司 | Quickly-replaceable assembled telescopic device and construction method thereof |
| CN115928567A (en) * | 2022-12-26 | 2023-04-07 | 江苏久兴建设工程有限公司 | Seamless expansion device, bridge deck expansion joint structure and paving method thereof |
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| CN106894335A (en) * | 2017-04-25 | 2017-06-27 | 中国冶集团有限公司 | Modulus bridge expansion device and its installation method |
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| CN110331660A (en) * | 2019-08-21 | 2019-10-15 | 衡水中铁建工程橡胶有限责任公司 | A kind of modulus type bridge expanssion joint with flat pendulum support beam |
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| CN115182243A (en) * | 2022-08-12 | 2022-10-14 | 苏交科集团股份有限公司 | Quickly-replaceable assembled telescopic device and construction method thereof |
| CN115182243B (en) * | 2022-08-12 | 2024-01-19 | 苏交科集团股份有限公司 | Rapidly-replaceable assembled telescopic device and construction method thereof |
| CN115928567A (en) * | 2022-12-26 | 2023-04-07 | 江苏久兴建设工程有限公司 | Seamless expansion device, bridge deck expansion joint structure and paving method thereof |
| CN115928567B (en) * | 2022-12-26 | 2023-09-19 | 江苏久兴建设工程有限公司 | Seamless expansion device, bridge deck expansion joint structure and paving method thereof |
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