CN112281627B - Steel bar joint structure of prefabricated section T beam - Google Patents
Steel bar joint structure of prefabricated section T beam Download PDFInfo
- Publication number
- CN112281627B CN112281627B CN202010994849.0A CN202010994849A CN112281627B CN 112281627 B CN112281627 B CN 112281627B CN 202010994849 A CN202010994849 A CN 202010994849A CN 112281627 B CN112281627 B CN 112281627B
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- groove
- frame
- shaped beam
- trough
- fixed
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 19
- 239000010959 steel Substances 0.000 title claims abstract description 19
- 241001465382 Physalis alkekengi Species 0.000 claims abstract description 12
- 239000011440 grout Substances 0.000 claims abstract description 6
- 238000010276 construction Methods 0.000 claims description 14
- 239000002002 slurry Substances 0.000 claims description 3
- 230000001808 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 210000000614 Ribs Anatomy 0.000 description 23
- 210000000515 Tooth Anatomy 0.000 description 20
- 238000000034 method Methods 0.000 description 7
- 230000000903 blocking Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 241000985665 Cecropia obtusifolia Species 0.000 description 1
- 210000001503 Joints Anatomy 0.000 description 1
- 210000003205 Muscles Anatomy 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 230000000149 penetrating Effects 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 239000011374 ultra-high-performance concrete Substances 0.000 description 1
Images
Classifications
-
- 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
-
- 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
Abstract
The invention provides a steel bar joint structure of a prefabricated section T beam. The steel bar joint structure of the prefabricated section T-shaped beam comprises a T-shaped beam; the two grout outlets are arranged on the top surface of the T-shaped beam; the groove structure is arranged inside the T-shaped beam and comprises an inner groove and an outer groove; the splicing structure is connected with the inner groove in a sliding mode and comprises a frame and meshes; the connecting structure is fixed inside the outer groove and comprises a reserved rib, a first connecting hook and a second connecting hook; the fixing structure is respectively fixed inside the inner groove and the side wall of the frame and comprises a lantern ring, an expansion ring, an outer expansion column and an annular groove; and the grouting port is arranged on the bottom surface of the T-shaped beam and communicated with the inner groove. The steel bar joint structure of the prefabricated section T-shaped beam has the advantages of being simple in splicing and convenient to construct.
Description
Technical Field
The invention relates to the technical field of T-beam splicing, in particular to a steel bar joint structure of a prefabricated section T-beam.
Background
The prefabricated section assembled T-beam has the advantages of high construction speed, small interference to construction site environment, easy quality guarantee and the like, and is widely applied at home and abroad. The seam is used as a local discontinuous part of the structure, is the characteristic of the prefabricated segmental beam, and is also a position with weak and fuzzy structural mechanical property. The joints play an important role in transferring pressure and shear forces throughout the structure and are therefore considered important in both design and construction.
At present, aiming at different beam heights or different tooth key construction types of prefabricated section beams, an end mold is generally required to be customized in the construction process to realize splicing among the section beams; in order to ensure that all the tooth keys are uniformly stressed after the bridge is formed, close construction is usually adopted to ensure the accurate matching between the male tooth key and the female tooth key of the joint. Although the construction method does not form a technical problem for the existing construction technology level, under the background of advocating full prefabrication, full assembly, simplified manufacture and rapid bridge construction, from the perspective of construction convenience, a larger perfection space still exists.
Therefore, there is a need to provide a new steel bar joint structure of prefabricated section T-beam to solve the above technical problems.
Disclosure of Invention
In order to solve the technical problems, the invention provides the steel bar joint structure of the prefabricated section T beam, which is simple in splicing and convenient to construct.
The invention provides a steel bar joint structure of a prefabricated section T beam, which comprises the following components: a T-beam; the two grout outlets are arranged on the top surface of the T-shaped beam; the trough structure is arranged inside the T-shaped beam and comprises an inner trough and an outer trough, the inner trough is arranged inside the T-shaped beam, the slurry outlet is communicated with the inner trough, and the outer trough is arranged on the side wall of the T-shaped beam; the splicing structure is connected with the inner tank in a sliding mode and comprises a frame and a net piece, the frame is connected with the inner tank in a sliding mode, and the net piece is fixed inside the frame; the connecting structure is fixed inside the outer groove and comprises a reserved rib, a first connecting hook and a second connecting hook, one end of the reserved rib is fixed inside the outer groove and extends into the T-shaped beam, the other end of the reserved rib is connected with the net piece in a sliding mode, the first connecting hooks and the second connecting hooks are fixed on the inner side of the reserved rib at equal intervals, and the first connecting hooks are connected with the net piece in a clamping mode; the fixing structure is respectively fixed inside the inner groove and the side wall of the frame and comprises a lantern ring, expansion rings, outer expansion columns and an annular groove, the bottom ends of the lantern rings are equidistantly fixed on the side wall of the frame, the outer expansion columns are fixed in the centers of the lantern rings, the annular groove is formed between the lantern rings and the outer expansion columns, the bottom ends of the expansion rings are fixed inside the T-shaped beam, and the top ends of the expansion rings are in sliding connection with the annular groove; and the grouting port is arranged on the bottom surface of the T-shaped beam and communicated with the inner groove.
Preferably, the inner tank is in communication with the outer tank, and the outer tank has a width greater than a width of the inner tank.
Preferably, the splicing structure further comprises fixing columns and blocking rods, the two fixing columns are fixedly connected with the two ends of the net piece, the fixing columns are close to the two ends of the frame, and the four blocking rods are symmetrically fixed on the two sides of the frame.
Preferably, the length of the inner tank and the outer tank is equal to one half of the frame, and the width of the frame is slightly smaller than the width of the inner tank.
Preferably, the reserved rib abuts against the fixed column and the side wall of the stop lever, and the second connecting hook is connected with the fixed column in a clamping mode.
Preferably, the fixed knot constructs still includes lug, first antiskid tooth and second antiskid tooth, the lug is located respectively the top inner wall of the lantern ring with the top outer wall of expansion ring, first antiskid tooth is located the outer wall of expansion ring, second antiskid tooth is located the inner wall of the lantern ring, just first antiskid tooth with second antiskid tooth block is connected.
Compared with the related art, the steel bar joint structure of the prefabricated section T-shaped beam has the following beneficial effects:
the invention provides a steel bar joint structure of a prefabricated section T beam, which is characterized in that two T beams are connected by adopting a splicing structure, and the splicing structure is completely fixed in an inner groove by utilizing the connecting structure and a fixing structure, so that the labor amount of workers is greatly reduced, the splicing speed of the T beams is improved, the shearing resistance of the T beam joint is improved, the overall performance of a bridge is good, the bending resistance and the ductility of the joint are improved, and the T beams are spliced without building a template again.
Drawings
Fig. 1 is a schematic structural view of a steel bar joint structure of a prefabricated section T-beam according to a preferred embodiment of the present invention;
FIG. 2 is an enlarged schematic view of area A shown in FIG. 1;
FIG. 3 is a schematic cross-sectional view of the splice structure and connection structure shown in FIG. 1;
FIG. 4 is a schematic top cross-sectional view of the connection shown in FIG. 3;
FIG. 5 is an enlarged schematic view of region B shown in FIG. 4;
fig. 6 is a schematic cross-sectional view of the fastening structure shown in fig. 4.
Reference numbers in the figures: 1. t roof beam, 2, grout outlet, 3, mosaic structure, 31, frame, 32, net piece, 33, fixed column, 34, shelves pole, 4, groove structure, 41, inside groove, 42, outer tank, 5, connection structure, 51, reserve muscle, 52, first hookup, 53, second hookup, 6, fixed knot construct, 61, lantern ring, 62, expansion ring, 63, lug, 64, first anti-skidding tooth, 65, second anti-skidding tooth, 66, external expanding post, 67, ring channel, 7, slip casting mouth.
Detailed Description
The invention is further described with reference to the following figures and embodiments.
Referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6, wherein fig. 1 is a schematic structural view illustrating a steel bar joining structure of a prefabricated section T-beam according to a preferred embodiment of the present invention; FIG. 2 is an enlarged schematic view of area A shown in FIG. 1; FIG. 3 is a schematic cross-sectional view of the splice structure and connection structure shown in FIG. 1; FIG. 4 is a schematic top cross-sectional view of the connection shown in FIG. 3; FIG. 5 is an enlarged schematic view of region B shown in FIG. 4; fig. 6 is a schematic cross-sectional view of the fastening structure shown in fig. 4. The steel bar joint structure of the prefabricated section T beam comprises: a T-beam 1; the two grout outlets 2 are arranged on the top surface of the T-shaped beam 1; the trough structure 4 is arranged inside the T-shaped beam 1, the trough structure 4 comprises an inner trough 41 and an outer trough 42, the inner trough 41 is arranged inside the T-shaped beam 1, the slurry outlet 2 is communicated with the inner trough 41, and the outer trough 42 is arranged on the side wall of the T-shaped beam 1; the splicing structure 3, the splicing structure 3 is slidably connected with the inner tank 41, the splicing structure 3 comprises a frame 31 and a mesh 32, the frame 31 is slidably connected with the inner tank 41, and the mesh 32 is fixed inside the frame 31; the connecting structure 5 is fixed inside the outer groove 42, the connecting structure 5 comprises a reserved rib 51, a first connecting hook 52 and a second connecting hook 53, one end of the reserved rib 51 is fixed inside the outer groove 42 and extends into the T-shaped beam 1, the other end of the reserved rib 51 is connected with the mesh 32 in a sliding manner, the first connecting hooks 52 and the second connecting hooks 53 are fixed on the inner side of the reserved rib 51 at equal intervals, and the first connecting hooks 52 are connected with the mesh 32 in a clamping manner; the fixing structure 6 is respectively fixed inside the inner groove 41 and on the side wall of the frame 31, the fixing structure 6 includes a collar 61, an expansion ring 62, a plurality of outer expansion columns 66 and an annular groove 67, the bottom ends of the collar 61 are equidistantly fixed on the side wall of the frame 31, the outer expansion columns 66 are fixed in the center of the collar 61, the annular groove 67 is arranged between the collar 61 and the outer expansion columns 66, the bottom end of the expansion ring 62 is fixed inside the T-beam 1, and the top end of the expansion ring 62 is slidably connected with the annular groove 67; and the grouting opening 7 is arranged on the bottom surface of the T-shaped beam 1, and the grouting opening 7 is communicated with the inner groove 41.
In a specific implementation process, as shown in fig. 4, the inner groove 41 is communicated with the outer groove 42, the width of the outer groove 42 is larger than that of the inner groove 41, and in order to embed the root of the reserved rib 51 in the outer groove 42, when the two T-shaped beams 1 are spliced, the reserved rib 51 does not influence the side walls of the two T-shaped beams 1 to interfere with each other.
In a specific implementation process, as shown in fig. 1, 3 and 4, the splicing structure 3 further includes fixing columns 33 and blocking bars 34, the two fixing columns 33 are fixedly connected to two ends of the mesh sheet 32, the fixing columns 33 are close to two ends of the frame 31, the four blocking bars 34 are symmetrically fixed to two sides of the frame 31, in order to limit a movement track of the reserved ribs 51 inserted into the frame 31, and prevent the reserved ribs 51 from penetrating through the mesh sheet 32 to affect the frame 31 and the mesh sheet 32 from entering the inner groove 41.
In a specific implementation, as shown in fig. 4, the lengths of the inner trough 41 and the outer trough 42 are equal to one half of the length of the frame 31, so that when the side walls of two T-beams 1 abut against each other, the two ends of the frame 31 just abut against the side walls of the inner trough 41, so that the fixing structures 6 can be connected to each other; and the width of the frame 31 is slightly smaller than the width of the inner groove 41 in order for the frame 31 to be easily slid in the inner groove 41.
In a specific implementation process, as shown in fig. 3 and 4, the reserved rib 51 abuts against the side walls of the fixed column 33 and the stop lever 34, the second connecting hook 53 is connected with the fixed column 33 in a clamping manner, and in order to connect the reserved rib 51 and the splicing structure 3 together, the structures of the parts form a whole, so that the splicing strength of the T-beam 1 is increased.
In a specific implementation process, as shown in fig. 6, the fixing structure 6 further includes a protrusion 63, a first anti-slip tooth 64 and a second anti-slip tooth 65, the protrusion 63 is respectively disposed on the top inner wall of the collar 61 and the top outer wall of the expansion ring 62, the first anti-slip tooth 64 is disposed on the outer wall of the expansion ring 62, the second anti-slip tooth 65 is disposed on the inner wall of the collar 61, and the first anti-slip tooth 64 and the second anti-slip tooth 65 are in a snap-fit connection, so as to improve the connection strength between the expansion ring 62 and the collar 61, so that the frame 31 is firmly fixed inside the inner groove 41, and thus the T-beam 1 spliced together forms a whole, and the connection is more stable.
The working principle of the steel bar joint structure of the prefabricated section T beam provided by the invention is as follows:
firstly, one end of the frame 31 and the mesh 32 is put into the inner groove 41 in one of the webs of the T-beam 1, the frame 31 and the mesh 32 are pushed into the inner groove 41, the reserved rib 51 fixed in the outer groove 42 enters the other half of the frame 31 and slides along the mesh 32, the first connecting hook 52 and the second connecting hook 52 with arc-shaped back surfaces on the reserved rib 51 cross the mesh 32, when the frame 31 reaches the deepest part of the inner groove 41, the side wall of the other end of the reserved rib 51 just abuts against the side wall of the fixing post 33 on the other half of the mesh 32 and continues sliding along the side wall of the fixing post 33, when the frame 31 and the mesh 32 reach the deepest part of the inner groove 41, the half of the frame 31 and the mesh 32 just enter the inner groove 41, the second connecting hook 53 on the reserved rib 51 just goes over the fixing post 33 and hooks the fixing post 33, and the top end of the reserved rib 51 abuts against the stop lever 41 on the other half of the frame 31, at this time, the first connecting hook 52 hooks the mesh sheet 32, so that the splicing structure 3 and the connecting structure 5 are connected together, and the frame 31 and the mesh sheet 32 do not retreat out of the inner groove 41; meanwhile, the collar 61 on the side wall of the frame 31 abuts against the expansion ring 62 on the inner wall of the inner groove 41, and the projection 63 on the outer wall of the top end of the expansion ring 62 slides into the annular groove 67 to abut against the projection 63 on the inner wall of the top end of the collar 61; next, the other T-beam 1 is close to the T-beam 1, so that the exposed half of the frame 31 and the mesh 32 enter the inner groove 41 of the web of the other T-beam 1, and the reserved rib 51 in the outer groove 42 of the other T-beam 1 is also inserted into the frame 31 in the above manner, and when the frame 31 and the mesh 32 reach the deepest part of the inner groove 41 in the other T-beam 1, the top end of the reserved rib 51 thereon just interferes with the fixing post 33 and the stop bar 34 respectively inserted into the splicing structure 3 in the previous T-beam 1, and the first connecting hook 52 on the reserved rib 51 hooks the mesh 32, and the second connecting hook 53 hooks the fixing post 33, so that the other half of the splicing structure 3 is connected with the connecting structure 5 on the other T-beam, preventing the frame 31 and the mesh 32 from being retracted out of the inner tank 41; continuing to bring the other T-beam 1 closer to the previous T-beam 1 until the side walls of the two T-beams 1 abut against each other, in the process, the splicing structure 3 in the inner groove 41 continues to be pressed, so that the collar 61 on the side wall of the frame 31 continues to press the expansion ring 62, the expansion ring 62 slides into the annular groove 67, and simultaneously the outer expansion post 66 presses the inner wall of the expansion ring 62 all around, because the outer expansion post 66 is of a conical structure, as the expansion ring 62 slides into the annular groove 67, the expansion ring 62 is pressed into a trumpet shape by the outer expansion post 66, the top end of the expansion ring 62 is opened all around, the outer wall of the expansion ring 62 abuts against the inner wall of the collar 61, and the first anti-skid teeth 64 on the outer wall of the expansion ring 62 are tightly clamped with the second anti-skid teeth 65 on the inner wall of the collar 61, the collar 61 and the expansion ring 62 are tightly connected and difficult to separate, and finally the splicing structure 33 is firmly connected with the two T-shaped beams 1; finally, ultra-high performance concrete is injected from the grouting port 7 at the bottom end of the T-shaped beam 1, the inner groove 41, the outer groove 42 and the gap between the two T-shaped beams 1 are filled with the concrete, and the excess concrete flows out from the grout outlet 2.
Compared with the related art, the steel bar joint structure of the prefabricated section T-shaped beam has the following beneficial effects:
the invention provides a steel bar joint structure of a prefabricated section T-beam, which is characterized in that two T-beams are connected by adopting a splicing structure 3, and the splicing structure 3 is completely fixed in an inner groove 41 by utilizing the connecting structure and a fixing structure, so that the labor intensity of workers is greatly reduced, the splicing speed of the T-beams is improved, the shearing resistance of the T-beam joint is improved, the overall performance of a bridge is good, and the bending resistance and the ductility of the joint are improved.
The prefabricated sections can still utilize conventional formworks without additional cost and are easier to construct
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (6)
1. A steel bar joint structure of a prefabricated section T beam is characterized by comprising:
a T-beam (1);
the two grout outlets (2) are arranged on the top surface of the T-shaped beam (1);
the trough structure (4), the trough structure (4) is arranged inside the T-shaped beam (1), the trough structure (4) comprises an inner trough (41) and an outer trough (42), the inner trough (41) is arranged inside the T-shaped beam (1), the slurry outlet (2) is communicated with the inner trough (41), and the outer trough (42) is arranged on the side wall of the T-shaped beam (1);
a splicing structure (3), wherein the splicing structure (3) is connected with the inner tank (41) in a sliding manner, the splicing structure (3) comprises a frame (31) and a mesh (32), the frame (31) is connected with the inner tank (41) in a sliding manner, and the mesh (32) is fixed inside the frame (31);
the connecting structure (5) is fixed in the outer groove (42), the connecting structure (5) comprises a reserved rib (51), a first connecting hook (52) and a second connecting hook (53), one end of the reserved rib (51) is fixed in the outer groove (42) and extends into the T-shaped beam (1), the other end of the reserved rib (51) is connected with the net piece (32) in a sliding mode, the first connecting hooks (52) and the second connecting hook (53) are fixed on the inner side of the reserved rib (51) at equal intervals, and the first connecting hooks (52) are connected with the net piece (32) in a clamping mode;
the fixing structure (6) is respectively fixed inside the inner groove (41) and on the side wall of the frame (31), the fixing structure (6) comprises a lantern ring (61), an expansion ring (62), a plurality of outer expansion columns (66) and an annular groove (67), the bottom ends of the lantern rings (61) are equidistantly fixed on the side wall of the frame (31), the outer expansion columns (66) are fixed at the center of the lantern rings (61), the annular groove (67) is arranged between the lantern rings (61) and the outer expansion columns (66), the bottom ends of the expansion ring (62) are fixed inside the T-shaped beam (1), and the top ends of the expansion ring (62) are in sliding connection with the annular groove (67);
the grouting opening (7) is formed in the bottom face of the T-shaped beam (1), and the grouting opening (7) is communicated with the inner groove (41).
2. A rebar seam construction of a precast segment T-beam according to claim 1, wherein the inner groove (41) communicates with the outer groove (42), and the outer groove (42) has a width greater than a width of the inner groove (41).
3. The reinforced joint structure of the prefabricated section T-beam as claimed in claim 1, wherein the splicing structure (3) further comprises fixing columns (33) and stop rods (34), two fixing columns (33) are fixedly connected with two ends of the mesh (32), the fixing columns (33) are close to two ends of the frame (31), and four stop rods (34) are symmetrically fixed on two sides of the frame (31).
4. A rebar seam construction of a precast segment T-beam according to claim 1, wherein the length of the inner groove (41) and the outer groove (42) is equal to one half of the frame (31), and the width of the frame (31) is slightly smaller than the width of the inner groove (41).
5. A steel bar joint construction of a precast segment T beam according to claim 3, wherein the reserved bar (51) is abutted against the fixing column (33) and the side wall of the stopper bar (34), and the second coupling hook (53) is snap-coupled with the fixing column (33).
6. A rebar seam construction of a prefabricated section T-beam according to claim 1, wherein the fixing structure (6) further comprises a bump (63), a first anti-slip tooth (64) and a second anti-slip tooth (65), the bump (63) is respectively arranged on the top inner wall of the sleeve ring (61) and the top outer wall of the expansion ring (62), the first anti-slip tooth (64) is arranged on the outer wall of the expansion ring (62), the second anti-slip tooth (65) is arranged on the inner wall of the sleeve ring (61), and the first anti-slip tooth (64) is in snap-fit connection with the second anti-slip tooth (65).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010994849.0A CN112281627B (en) | 2020-09-21 | 2020-09-21 | Steel bar joint structure of prefabricated section T beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010994849.0A CN112281627B (en) | 2020-09-21 | 2020-09-21 | Steel bar joint structure of prefabricated section T beam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112281627A CN112281627A (en) | 2021-01-29 |
| CN112281627B true CN112281627B (en) | 2021-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010994849.0A Active CN112281627B (en) | 2020-09-21 | 2020-09-21 | Steel bar joint structure of prefabricated section T beam |
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| CN205557302U (en) * | 2016-04-29 | 2016-09-07 | 中铁十五局集团有限公司 | Section section precast box girder's a seam connection structure is assembled to short line method |
| CN207633207U (en) * | 2017-10-10 | 2018-07-20 | 山西省交通科学研究院 | A kind of ultra-high performance concrete seam construction for assembly hollow slab bridges beam |
| CN209162631U (en) * | 2018-08-31 | 2019-07-26 | 浙江工业大学 | A kind of hinge seam sealing and connecting device |
| CN209493826U (en) * | 2018-11-20 | 2019-10-15 | 湖南工业大学 | The interim splicing structure of concrete segment precast bridge |
| CN211228146U (en) * | 2019-10-18 | 2020-08-11 | 贵州大通路桥工程建设有限公司 | Steel and rubber combined comb template |
-
2020
- 2020-09-21 CN CN202010994849.0A patent/CN112281627B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030024015A (en) * | 2001-09-15 | 2003-03-26 | 안철승 | multi cell rubber pannel seal joint system |
| CN204185755U (en) * | 2014-11-03 | 2015-03-04 | 河南大建桥梁钢构股份有限公司 | A kind of Wavelike steel webplate post-stressed concrete T beam |
| CN205557302U (en) * | 2016-04-29 | 2016-09-07 | 中铁十五局集团有限公司 | Section section precast box girder's a seam connection structure is assembled to short line method |
| CN207633207U (en) * | 2017-10-10 | 2018-07-20 | 山西省交通科学研究院 | A kind of ultra-high performance concrete seam construction for assembly hollow slab bridges beam |
| CN209162631U (en) * | 2018-08-31 | 2019-07-26 | 浙江工业大学 | A kind of hinge seam sealing and connecting device |
| CN209493826U (en) * | 2018-11-20 | 2019-10-15 | 湖南工业大学 | The interim splicing structure of concrete segment precast bridge |
| CN211228146U (en) * | 2019-10-18 | 2020-08-11 | 贵州大通路桥工程建设有限公司 | Steel and rubber combined comb template |
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| CN112281627A (en) | 2021-01-29 |
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