CN110747735A - Anchoring connection device for precast concrete bridge deck of steel-concrete composite beam - Google Patents
Anchoring connection device for precast concrete bridge deck of steel-concrete composite beam Download PDFInfo
- Publication number
- CN110747735A CN110747735A CN201911041687.2A CN201911041687A CN110747735A CN 110747735 A CN110747735 A CN 110747735A CN 201911041687 A CN201911041687 A CN 201911041687A CN 110747735 A CN110747735 A CN 110747735A
- Authority
- CN
- China
- Prior art keywords
- panel
- prestressed
- anchor
- steel bars
- steel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
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
- E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
- E01D19/125—Grating or flooring for bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
- E01D2101/28—Concrete reinforced prestressed
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses an anchoring connection device of a precast concrete bridge deck of a steel-concrete composite beam, which relates to the field of bridge construction. According to the invention, the steel bar connecting piece is inserted and arranged in the middle of the reserved steel bars spliced by the first panel and the second panel, so that the tensile strength of the reserved steel bars arranged on the first panel and the second panel is enhanced; the first panel and the second panel are internally provided with a plurality of groups of prestress assemblies, the tensile stress of the structural member is controlled in a small range, so that the appearance and development of the concrete layer cracks of the panels in the first panel and the second panel are delayed, and the anti-cracking performance and the rigidity of the first panel and the second panel are improved.
Description
Technical Field
The invention relates to the field of bridge construction, in particular to an anchoring connection device for a precast concrete bridge deck of a steel-concrete composite beam.
Background
In the conventional connection mode among prefabricated bridge decks, the upper and lower layers of reinforcing steel bars extending out of two prefabricated bridge decks are arranged in a staggered mode, the reinforcing steel bars of the two prefabricated bridge decks are mutually overlapped in the longitudinal position, the mutually overlapped reinforcing steel bars are welded on site, then concrete is poured at the joint of the two prefabricated bridge decks, and the connection is completed after vibration maintenance. In order to ensure the connection strength of the two prefabricated bridge deck plates, the welding of the steel bars, which are mutually lapped, of the two prefabricated bridge deck plates needs to be more precise, and the workload is increased; when the length of the prefabricated bridge deck slab is longer, the bending resistance of the bridge deck slab is poor, and when the prefabricated bridge deck slab bears tensile stress caused by load, a concrete structure of the bridge deck slab is easy to crack, so that the structural strength of the bridge deck slab is influenced, particularly the prefabricated bridge deck slab is easy to be influenced by the tensile stress at a connecting position, and the rigidity of a common connecting mode is insufficient.
Disclosure of Invention
The present invention has been made in an effort to provide an anchor connecting device for precast concrete deck panels of a steel-concrete composite girder, which simultaneously solves the above-mentioned problems occurring in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: the anchoring and connecting device of the precast concrete bridge deck of the steel-concrete composite beam comprises a first deck, a second deck and a steel bar connecting piece, wherein the first deck and the second deck are respectively composed of a steel bar framework and a deck concrete layer poured outside the steel bar framework, reserved steel bars are arranged at two ends of the steel bar framework, the reserved steel bars are extended and arranged outside two ends of the deck concrete layer, two ends of the first deck and the second deck are spliced, the reserved steel bars arranged at the ends of the first deck and the second deck are arranged in a staggered manner, the steel bar connecting piece is arranged in the middle of the reserved steel bars spliced together along the first deck and the second deck in an alternating manner and comprises an insert column and reinforcing steel bars, the insert column is a rectangular column body, the insert column is arranged in the middle of the reserved steel bars spliced together by the first deck and the second deck, a pair of reinforcing steel bars is arranged at two sides of the insert column, a plurality of groups of prestressed components are arranged inside the first panel and the second panel, each prestressed component comprises a first prestressed sleeve, a second prestressed sleeve, a first prestressed rib, a second prestressed rib, a first anchor device, a second anchor device, a third anchor device, a first anchor plug, a second anchor plug, a first sleeve filling layer and a second sleeve filling layer, the first prestressed sleeves are pre-embedded inside the first panel and the second panel, the second prestressed sleeves are pre-embedded inside the through holes of the first panel, the second panel, the first concrete filling layer and the inserting column, the first prestressed sleeves and the second prestressed sleeves are elastic corrugated pipes, the first anchor devices are arranged at two ends of the first prestressed sleeve, the first anchor devices are embedded and fixed inside the panel concrete layer, the first prestressed sleeves are internally provided with first prestressed ribs, the two ends of the first prestressed ribs penetrate out along rib holes in the middle of the first anchor devices, a first anchor plug is inserted at the perforation of the first prestressed tendon and the first anchor, a first sleeve filling layer is poured inside the first prestressed sleeve, third anchors are arranged at two ends of the second prestressed sleeve, a second anchor is arranged at the connecting end of the second prestressed sleeve positioned at the first panel and the second panel, the third anchor and the second anchor are respectively embedded and fixed at two ends of the panel concrete layer and positioned inside the panel concrete layer, a second prestressed tendon is arranged inside the second prestressed sleeve, two ends and the middle part of the second prestressed tendon respectively penetrate out along the tendon holes at the middle parts of the third anchor and the second anchor, a third anchor plug is inserted at the perforation of the second prestressed tendon and the third anchor, a second anchor plug is inserted at the perforation of the second prestressed tendon and the second anchor, a second sleeve filling layer is poured inside the second prestressed sleeve, and the second anchor comprises expansive cement, the first anchor plug and the second anchor plug are opposite in stress direction, the second anchor is fixed on the first panel and the second panel through an adhesive, and a steel ring is arranged on the outer side of the second anchor.
Preferably, the steel reinforcement framework is composed of a plurality of transverse steel bars which are uniformly arranged along the longitudinal direction and a plurality of longitudinal steel bars which are uniformly arranged along the transverse direction, the contact positions of the transverse steel bars and the longitudinal steel bars are welded and fixed, and the two ends of the transverse steel bars are bent to form the reserved steel bars in a U shape.
Preferably, a plurality of notches are formed in the upper surface and the lower surface of the inserting column, the notches correspond to the positions of the reserved steel bars arranged on the first panel and the second panel, and the reserved steel bars arranged on the first panel and the second panel are clamped in the corresponding notches.
Preferably, the reinforcing steel bars are inserted along the middle parts of the reserved steel bars spliced by the first panel and the second panel, and the reinforcing steel bars are welded and fixed with the reserved steel bars.
Preferably, a first concrete filling layer is poured at the splicing position of the first panel and the second panel, and the first concrete filling layer fills gaps between the reserved steel bars and the steel bar connecting pieces.
The invention has the technical effects and advantages that:
1. according to the invention, the steel bar connecting piece is inserted and arranged in the middle of the reserved steel bars spliced by the first panel and the second panel, so that the tensile strength of the reserved steel bars arranged on the first panel and the second panel is enhanced, and the connection stability of the first panel and the second panel is improved;
2. a plurality of groups of prestressed components are arranged in the first panel and the second panel, and a first prestressed tendon in each prestressed component reduces or offsets concrete tensile stress caused by load, so that the tensile stress of the structural member is controlled in a smaller range, even in a compressed state, the occurrence and development of panel concrete layer cracks in the first panel and the second panel are delayed, and the crack resistance and the rigidity of the first panel and the second panel are improved; simultaneously, through the actions of the first prestressed tendon and the anchorage device and the anchor plug which are matched with the first prestressed tendon, the occurrence and the development of the slab concrete layer cracks in the first slab and the second slab can be further delayed, and through the arrangement of the second prestressed tendon which penetrates through the first slab, the second slab and the concrete filling layer, the concrete filling layer is in a stressed state at the same time, so that the occurrence and the development of cracks in the concrete filling layer are delayed, meanwhile, the rigidity of the concrete filling layer at the connecting position is more sufficient, the rigidity of the structure is improved, the occurrence and the development of cracks are delayed, particularly, the stress directions of the expansive cement, the adhesive, the first anchor plug and the second anchor plug which are contained in the second anchorage device are matched are opposite, so that the second anchor plug is fixed before the first concrete filling layer is poured, the penetration of the second prestressed tendon is not influenced, and after the penetration and before the first concrete filling layer is poured, arranging a second anchor with expansion cement at the position of the second anchor plug, then pouring the first concrete filling layer, and setting reasonable expansion coefficient and expansion time so that when the first concrete filling layer has certain rigidity and releases the second prestressed tendon, the expansion cement expands to enable the second anchor to extrude the first anchor plug for fixing, and the pressure to the periphery is uniform through the arranged steel ring, and the expansion is carried out towards the second anchor plug; through the cooperation, the rigidity of the panel joint can be well improved, the cracks of the panel and the panel joint are delayed, and the service life of the panel is prolonged.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic diagram of the spliced structure of the present invention.
Fig. 3 is an enlarged view of a portion a in fig. 3.
Fig. 4 is an elevational cross-sectional view of the structure of the present invention.
Fig. 5 is an enlarged view at B in fig. 4.
Fig. 6 is an elevational cross-sectional view of the present invention having a first pre-stressed steel bar structure.
Fig. 7 is an enlarged view of the invention at C in fig. 6.
Fig. 8 is an enlarged view of the invention at D in fig. 6.
Fig. 9 is an enlarged view of the invention at E in fig. 7.
Fig. 10 is a schematic structural view of the insert column of the present invention.
In the figure: 1. a first panel; 101. a second panel; 2. a steel reinforcement cage; 3. a panel concrete layer; 4. a reinforcing bar coupler; 5. transverse reinforcing steel bars; 501. reserving a steel bar; 6. longitudinal reinforcing steel bars; 7. inserting a column; 701. a notch; 8. reinforcing steel bars; 9. a pre-stressed assembly; 10. a first concrete filling layer; 11. a first pre-stressed casing; 12. a first tendon; 13. a first anchor; 14. a first anchor plug; 15. a first casing fill layer; 16. a second tendon; 17. a second anchor plug; 18. a second anchor; 19. a third anchor; 20. a third anchor plug; 21. a binder; 22. and a through hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides an anchoring and connecting device of a precast concrete bridge deck of a steel-concrete composite beam as shown in figures 1-5, which comprises a first deck 1, a second deck 101 and a reinforcing steel bar connecting piece 4, wherein the first deck 1 and the second deck 101 are both formed by a reinforcing steel bar framework 2 and a deck concrete layer 3 poured outside the reinforcing steel bar framework 2, the reinforcing steel bar framework 2 is formed by a plurality of transverse reinforcing steel bars 5 uniformly arranged along the longitudinal direction and a plurality of longitudinal reinforcing steel bars 6 uniformly arranged along the transverse direction, the contact parts of the transverse reinforcing steel bars 5 and the longitudinal reinforcing steel bars 6 are welded and fixed, the reinforcing steel bar framework 2 is used as a main framework inside the first deck 1 and the second deck 101 and is mainly used for bearing and bending resistance, two ends of the transverse reinforcing steel bars 5 are bent to form reserved reinforcing steel bars 501 in a U shape, the reserved reinforcing steel bars 501 are arranged outside two ends of the deck concrete layer 3 in an extending way, and two ends of the, and the reserved steel bars 501 arranged at the end parts of the first panel 1 and the second panel 101 are arranged in a staggered manner and used for connecting the first panel 1 and the second panel 101, as shown in fig. 2 and fig. 3, a steel bar connecting piece 4 is arranged in the middle of the reserved steel bars 501 spliced together along the first panel 1 and the second panel 101, the steel bar connecting piece 4 comprises an inserting column 7 and a reinforcing steel bar 8, the inserting column 7 is a rectangular cylinder, the inserting column 7 is arranged in the middle of the reserved steel bars 501 spliced together along the first panel 1 and the second panel 101 in an inserting manner, a plurality of notches 701 are respectively arranged on the upper surface and the lower surface of the inserting column 7, the notches 701 correspond to the positions of the reserved steel bars 501 arranged on the first panel 1 and the second panel 101, the reserved steel bars 501 arranged on the first panel 1 and the second panel 101 are clamped in the corresponding notches 701, the reserved steel bars 501 are clamped in the notches 701 to position the reserved steel bars 501 and prevent deviation, insert the both sides of post 7 and all be provided with a pair of reinforcing bar 8, reinforcing bar 8 alternates along the middle part of first panel 1, second panel 101 concatenation reservation reinforcing bar 501 mutually, and reinforcing bar 8 and reservation reinforcing bar 501 welded fastening, and steel bar connection 4 has strengthened the tensile strength of the reservation reinforcing bar 501 that first panel 1, second panel 101 were established, increases first panel 1, second panel 101's connection stability.
Referring to fig. 4 and 5, a plurality of groups of prestressed assemblies 9 are arranged inside the first panel 1 and the second panel 101, each prestressed assembly 9 includes a first prestressed casing 11, a first prestressed rib 12, a first anchor 13, a first anchor plug 14 and a first casing filling layer 15, the first prestressed casing 11 is pre-embedded inside the first panel 1 and the second panel 101, the first prestressed casing 11 is an elastic corrugated pipe, two ends of the first prestressed casing 11 are provided with the first anchor 13, the first anchor 13 is embedded and fixed inside the panel concrete layer 3, the first prestressed rib 12 is arranged inside the first prestressed casing 11, two ends of the first prestressed rib 12 penetrate out along a rib hole in the middle of the first anchor 13, the first prestressed rib 12 is tensioned by a prestressed rib tensioning device, the conical first anchor plug 14 is pushed into the rib hole to tension the first prestressed rib 12, and then concrete grout is poured into the first prestressed casing 11, a first casing filling layer 15 is formed after the concrete grout is solidified, the first prestressed reinforcement 12 is reinforced, the tensile stress of the concrete caused by the load is reduced or offset by the first prestressed reinforcement 12, the tensile stress of the structural member is controlled in a smaller range or even in a pressed state, the appearance and development of cracks of the panel concrete layer 3 in the first panel 1 and the second panel 101 are delayed, the anti-cracking performance and the rigidity of the first panel 1 and the second panel 101 are improved, the first concrete filling layer 10 is poured at the splicing part of the first panel 1 and the second panel 101, the first concrete filling layer 10 fills the reserved steel bars 501 and the gaps between the steel bar connecting pieces 4, the connecting gaps are paved, the steel bar connecting pieces 4 and the reserved steel bars 501 are protected, and the connection is strengthened.
According to the invention, the inserting column 7 is inserted and arranged in the middle of the reserved steel bar 501 spliced along the first panel 1 and the second panel 101, the reserved steel bar 501 arranged on the first panel 1 and the second panel 101 is clamped in the corresponding notch 701 in the inserting column 7, the reserved steel bar 501 is clamped in the notch 701, the reserved steel bar 501 is positioned to prevent deviation, the reinforcing steel bar 8 is inserted and fixed with the reserved steel bar 501 along the middle of the reserved steel bar 501 spliced along the first panel 1 and the second panel 101, and the reinforcing steel bar 8 is welded and fixed with the reserved steel bar 501, the tensile strength of the reserved steel bar 501 arranged on the first panel 1 and the second panel 101 is enhanced by the steel bar connecting piece 4, so that the connection stability of the first panel 1 and the second panel 101 is improved; the first panel 1, the inside multiunit prestressing force subassembly 9 that is provided with of second panel 101, stretch-draw first prestressing tendons 12 in to prestressing force subassembly 9 through prestressing steel stretch-draw equipment, and push into muscle hole with conical first anchor plug 14, fix first prestressing tendons 12, pour into the concrete thick liquid toward first prestressing sleeve 11 inside again, form first sleeve filling layer 15 after the concrete thick liquid solidifies, consolidate first prestressing tendons 12, first prestressing tendons 12 reduces or offsets the concrete tensile stress that the load arouses, thereby control the tensile stress of structural component in less scope, even be in compression state, in order postpone the appearance and the development of panel concrete layer 3 fissures in first panel 1, the second panel 101, thereby improve the crack resistance and the rigidity of first panel 1, second panel 101.
In the practice process, the technical scheme of the invention can achieve a good effect, but the inventor also finds that at the joint of the panels, although good rigidity can be achieved through the matching of the reserved steel bars, the inserting columns and the reinforcing steel bars, in the occasion of high weighing, the rigidity of the joint is still insufficient, cracks at the joint can appear faster than the cracks of the panels, the service life of the whole body is shortened, and the invention is further improved, and the specific scheme is as follows: as shown in fig. 6-10, the prestressed assembly 9 includes a first prestressed casing 11, a second prestressed casing, a first prestressed rib 12, a second prestressed rib 16, a first anchor 13, a second anchor 18, a third anchor 19, a first anchor plug 14, a second anchor plug 17, a first casing filling layer 15 and a second casing filling layer, the first prestressed casing 11 is pre-embedded inside the first panel 1 and the second panel 101, the second prestressed casing is pre-embedded inside the first panel 1, the second panel 101, the first concrete filling layer 10 and the through hole 22 of the insert column 7, the first and second prestressed casings are elastic corrugated pipes, the first anchor 13 is disposed at two ends of the first prestressed casing 11, the first anchor 13 is pre-embedded and fixed inside the panel concrete layer 3, the first prestressed casing 11 is internally disposed with the first prestressed rib 12, two ends of the first prestressed rib 12 penetrate through the rib hole in the middle of the first prestressed casing 13, a first anchor plug 14 is inserted at the perforation of a first prestressed tendon 12 and a first anchor device 13, a first sleeve filling layer 15 is poured inside a first prestressed sleeve 11, third anchor devices 19 are arranged at two ends of the second prestressed sleeve, a second anchor device 18 is arranged at the connecting end of the first panel 1 and the second panel 101 of the second prestressed sleeve, the third anchor devices 13 and the second anchor devices 18 are respectively embedded and fixed at two ends of the panel concrete layer 3 and are positioned inside, a second prestressed tendon 16 is arranged inside the second prestressed sleeve, two ends and the middle part of the second prestressed tendon 16 respectively penetrate through tendon holes at the middle parts of the third anchor devices 19 and the second anchor devices 18, a third anchor plug 20 is inserted at the perforation of the second prestressed tendon 16 and the third anchor devices 19, a second anchor plug 17 is inserted at the perforation of the second prestressed tendon 16 and the second anchor devices 19, a second sleeve filling layer 15 is poured inside the second prestressed sleeve, the second anchorage device 18 comprises expansion cement, the stress directions of the first anchor plug 14 and the second anchor plug 18 are opposite, the second anchorage device 17 is fixed on the first panel 1 and the second panel 101 through an adhesive 21, and a steel ring is arranged on the outer side of the second anchorage device 18.
The working principle of the invention is two: the same part with the first working principle is not described again, only the difference is described in detail, the second prestressed tendon 16 in the prestressed assembly 9 is tensioned by prestressed tendon tensioning equipment, the position of the first panel 1 and the second panel 101 corresponding to the second anchor plug 17 is provided with an adhesive, the conical second anchor plug 17 is jacked into the tendon hole, then the second anchor 18 with expansive cement is poured outside the second anchor plug 17, so that the second anchor 18, the second anchor plug 17, the first panel 1 or the second panel 101 are connected in a seamless manner, then the concrete filling layer 10 can be poured, after the concrete filling layer 10 reaches a certain rigidity after pouring, and the expansive cement has enough time to expand, the expansion is carried out towards the direction of the second anchor plug 17 by matching with the steel ring, so that the second anchor plug 17 can be fixed with the second prestressed tendon after the expansion, then the third anchor plugs 20 can be embedded at the two ends, and finally the pulling force to the second prestressed reinforcement can be released, so that the second prestressed reinforcement penetrating through the first panel, the second panel and the concrete filling layer is arranged, the concrete filling layer is in a stressed state at the same time, the occurrence and the development of cracks of the concrete filling layer are delayed, the rigidity of the concrete filling layer at the connecting position is more sufficient, the rigidity of the structure is improved, the occurrence and the development of cracks are delayed, particularly, the stress directions of the expansive cement, the adhesive, the first anchor plug and the second anchor plug contained in the second anchor device are opposite, the second anchor plug is fixed before the first concrete filling layer is poured, the penetration of the second prestressed reinforcement cannot be influenced, and the second anchor device with the expansive cement is arranged at the position of the second anchor plug after the penetration and before the first concrete filling layer is poured, then, pouring the first concrete filling layer, and setting a reasonable expansion coefficient and expansion time so that when the first concrete filling layer has certain rigidity and releases the second prestressed tendon, the expansion cement expands to enable the second anchor to extrude the first anchor plug for fixing, and the expansion is carried out towards the second anchor plug while the pressure to the periphery is uniform through the arranged steel ring; through the cooperation, the rigidity of the panel joint can be well improved, the cracks of the panel and the panel joint are delayed, and the service life of the panel is prolonged.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (5)
1. Steel-concrete composite beam precast concrete decking's anchor connecting device, including first panel (1), second panel (101) and steel bar connection spare (4), its characterized in that: first panel (1) and second panel (101) constitute by framework of steel reinforcement (2) and pour panel concrete layer (3) outside framework of steel reinforcement (2), and the both ends of framework of steel reinforcement (2) are provided with reserved reinforcing bar (501), and reserved reinforcing bar (501) extend to set up in the both ends outside of panel concrete layer (3), the both ends of first panel (1) and second panel (101) are spliced mutually, and reserved reinforcing bar (501) that first panel (1), second panel (101) tip were established are staggered mutually and set up, and reserved reinforcing bar (501) middle part along first panel (1), second panel (101) concatenation mutually alternates and is provided with steel bar connection spare (4), steel bar connection spare (4) are including inserting post (7) and reinforcing bar (8), insert post (7) for the rectangle cylinder, insert post (7) and alternate and set up at first panel (1), The middle parts of the reserved steel bars (501) are spliced with each other by the second panel (101), a pair of reinforcing steel bars (8) are arranged on two sides of each inserted column (7), a plurality of groups of prestressed assemblies (9) are arranged inside the first panel (1) and the second panel (101), each prestressed assembly (9) comprises a first prestressed sleeve (11), a second prestressed sleeve, a first prestressed rib (12), a second prestressed rib (16), a first anchor (13), a second anchor (18), a third anchor (19), a first anchor plug (14), a second anchor plug (17), a first sleeve filling layer (15) and a second sleeve filling layer, the first prestressed sleeve (11) is pre-embedded inside the first panel (1) and the second panel (101), and the second prestressed sleeve is pre-embedded inside the first panel (1), the second panel (101), the first concrete filling layer (10), The method comprises the steps that a first prestressed casing and a second prestressed casing are elastic corrugated pipes inside a through hole (22) of an insert column (7), first anchors (13) are arranged at two ends of the first prestressed casing (11), the first anchors (13) are embedded and fixed inside a panel concrete layer (3), first prestressed ribs (12) are arranged inside the first prestressed casing (11), two ends of each first prestressed rib (12) penetrate out along rib holes in the middle of the corresponding first anchor (13), first anchor plugs (14) are inserted into holes of the first prestressed ribs (12) and the corresponding first anchors (13), a first casing filling layer (15) is poured inside the first prestressed casing (11), third anchors (19) are arranged at two ends of the second prestressed casing, and a second anchor (18) is arranged at the connecting end of the first panel (1) and the second panel (101) of the second prestressed casing, a third anchorage device (13) and a second anchorage device (18) are respectively embedded and fixed at two ends of a panel concrete layer (3) and positioned inside, a second prestressed tendon (16) is arranged inside a second prestressed casing, two ends and the middle part of the second prestressed tendon (16) respectively penetrate out along a tendon hole in the middle part of the third anchorage device (19) and the second anchorage device (18), a third anchor plug (20) is inserted at the perforation position of the second prestressed tendon (16) and the third anchorage device (19), a second anchor plug (17) is inserted at the perforation position of the second prestressed tendon (16) and the second anchorage device (19), a second casing filling layer (15) is poured inside the second prestressed casing, the second anchorage device (18) comprises expansion cement, the stress directions of the first anchor plug (14) and the second anchor plug (18) are opposite, and the second anchorage device (17) is fixed on the first panel (1) and the second panel (101) through an adhesive (21), and a steel ring is arranged on the outer side of the second anchorage device (18).
2. The anchor connecting device of a steel-concrete composite girder precast concrete deck slab according to claim 1, wherein: the steel bar framework (2) is composed of a plurality of transverse steel bars (5) which are uniformly arranged along the longitudinal direction and a plurality of longitudinal steel bars (6) which are uniformly arranged along the transverse direction, the contact positions of the transverse steel bars (5) and the longitudinal steel bars (6) are welded and fixed, and the two ends of the transverse steel bars (5) are bent to form reserved steel bars (501) in a U shape.
3. The anchor connecting device of a steel-concrete composite girder precast concrete deck slab according to claim 1, wherein: the upper surface and the lower surface of the inserting column (7) are provided with a plurality of notches (701), the notches (701) correspond to the positions of reserved steel bars (501) arranged on the first panel (1) and the second panel (101), and the reserved steel bars (501) arranged on the first panel (1) and the second panel (101) are clamped in the corresponding notches (701).
4. The anchor connecting device of a steel-concrete composite girder precast concrete deck slab according to claim 1, wherein: the reinforcing steel bars (8) are inserted along the middle parts of the reserved steel bars (501) spliced by the first panel (1) and the second panel (101), and the reinforcing steel bars (8) are welded and fixed with the reserved steel bars (501).
5. The anchor connecting device of a steel-concrete composite girder precast concrete deck slab according to claim 1, wherein: a first concrete filling layer (10) is poured at the splicing position of the first panel (1) and the second panel (101), and the first concrete filling layer (10) fills gaps between the reserved steel bars (501) and the steel bar connecting pieces (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911041687.2A CN110747735A (en) | 2019-10-30 | 2019-10-30 | Anchoring connection device for precast concrete bridge deck of steel-concrete composite beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911041687.2A CN110747735A (en) | 2019-10-30 | 2019-10-30 | Anchoring connection device for precast concrete bridge deck of steel-concrete composite beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110747735A true CN110747735A (en) | 2020-02-04 |
Family
ID=69281066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911041687.2A Withdrawn CN110747735A (en) | 2019-10-30 | 2019-10-30 | Anchoring connection device for precast concrete bridge deck of steel-concrete composite beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110747735A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112095464A (en) * | 2020-09-16 | 2020-12-18 | 贵州路桥集团有限公司 | Anchoring connection device for precast concrete bridge deck of steel-concrete composite beam |
| CN114775423A (en) * | 2022-03-24 | 2022-07-22 | 清华大学 | Concrete composite slab unit, concrete composite slab assembly, concrete composite slab bridge body and splicing construction method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003268720A (en) * | 2002-03-19 | 2003-09-25 | Joban Kosan Kk | Joint structure for prestressed concrete floor plates |
| CN106436569A (en) * | 2016-11-24 | 2017-02-22 | 宁波大学 | Prestressed bridge surface connection device and prefabrication method and construction method thereof |
| CN207904700U (en) * | 2018-01-31 | 2018-09-25 | 广州大学 | A kind of prestressing force conductive concrete structures |
| CN109487686A (en) * | 2018-12-29 | 2019-03-19 | 武汉理工大学 | A kind of unit construction bridge panel transverse joint using UHPC grouting material |
| JP2019127770A (en) * | 2018-01-25 | 2019-08-01 | 中日本高速道路株式会社 | Junction structure for precast concrete slab |
| CN209323367U (en) * | 2018-11-30 | 2019-08-30 | 中铁第四勘察设计院集团有限公司 | Steel reinforced concrete composite beam bridge panel assembly seam construction based on early strong high performance concrete |
-
2019
- 2019-10-30 CN CN201911041687.2A patent/CN110747735A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003268720A (en) * | 2002-03-19 | 2003-09-25 | Joban Kosan Kk | Joint structure for prestressed concrete floor plates |
| CN106436569A (en) * | 2016-11-24 | 2017-02-22 | 宁波大学 | Prestressed bridge surface connection device and prefabrication method and construction method thereof |
| JP2019127770A (en) * | 2018-01-25 | 2019-08-01 | 中日本高速道路株式会社 | Junction structure for precast concrete slab |
| CN207904700U (en) * | 2018-01-31 | 2018-09-25 | 广州大学 | A kind of prestressing force conductive concrete structures |
| CN209323367U (en) * | 2018-11-30 | 2019-08-30 | 中铁第四勘察设计院集团有限公司 | Steel reinforced concrete composite beam bridge panel assembly seam construction based on early strong high performance concrete |
| CN109487686A (en) * | 2018-12-29 | 2019-03-19 | 武汉理工大学 | A kind of unit construction bridge panel transverse joint using UHPC grouting material |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112095464A (en) * | 2020-09-16 | 2020-12-18 | 贵州路桥集团有限公司 | Anchoring connection device for precast concrete bridge deck of steel-concrete composite beam |
| CN114775423A (en) * | 2022-03-24 | 2022-07-22 | 清华大学 | Concrete composite slab unit, concrete composite slab assembly, concrete composite slab bridge body and splicing construction method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8474080B2 (en) | Construction method of steel composition girder bridge | |
| CN110258789B (en) | Beam column connecting node with replaceable energy-consumption steel bar and construction method thereof | |
| CN111455806B (en) | Construction method of bridge structure in hogging moment area of prestressed concrete beam | |
| KR101586320B1 (en) | Psc girder rahmen bridge and construction method thereof | |
| CN211368347U (en) | Bridge deck and steel-concrete composite beam | |
| CN109235222B (en) | Light full-assembly type large cantilever ultrahigh-performance concrete finned beam and construction method thereof | |
| KR101043239B1 (en) | Prestressed segment concrete girder for bridge and manufacturing method thereof | |
| CN110846999A (en) | Assembled prestressed steel and concrete combined box girder and construction process | |
| CN110747735A (en) | Anchoring connection device for precast concrete bridge deck of steel-concrete composite beam | |
| CN111021227B (en) | Steel-concrete composite structure continuous box girder and manufacturing method thereof | |
| KR101881580B1 (en) | Bridge comprising monolithic structure of girder and pier and construction method for the same | |
| CN111827095A (en) | Prefabricated assembled hollow pier with built-in rib plates and construction method | |
| CN114232792A (en) | Fabricated building beam-column joint connection construction method based on post-tensioning method anchoring | |
| KR20080111686A (en) | Bridge using phc girder and slab-phc complex girder | |
| CN111455856B (en) | Construction method for applying prestress on bridge deck in hogging moment area of steel-concrete composite bridge | |
| CN209854527U (en) | Assembled hollow slab bridge structure | |
| CN112627016A (en) | Assembled pier with self-resetting and strong energy consumption and construction method thereof | |
| JPH05340031A (en) | Prestressed concrete girder and its manufacture | |
| KR101397131B1 (en) | Prestress concrete bridge and building method thereof | |
| CN112012356B (en) | Embedded shear-energy consumption dual-function sleeve reinforced beam-column joint | |
| CN212714597U (en) | Transverse prestressed steel wire rope reinforcing structure of assembled hollow plate girder bridge | |
| JP7222824B2 (en) | Wall balustrade reinforcement method and reinforcement structure | |
| JP3684213B2 (en) | Construction method of PC composite structure | |
| KR200184684Y1 (en) | Apparatus to prevent the negative moment of a bridge | |
| CN209760027U (en) | hollow core slab structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200204 |
|
| WW01 | Invention patent application withdrawn after publication |