CN213925853U - Height-adjustable prefabricated assembled bridge anti-collision guardrail - Google Patents
Height-adjustable prefabricated assembled bridge anti-collision guardrail Download PDFInfo
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- CN213925853U CN213925853U CN202022194686.6U CN202022194686U CN213925853U CN 213925853 U CN213925853 U CN 213925853U CN 202022194686 U CN202022194686 U CN 202022194686U CN 213925853 U CN213925853 U CN 213925853U
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Abstract
The utility model discloses a bridge anticollision barrier is assembled in prefabrication with adjustable height, form by the concatenation of a plurality of festival section along the bridge length direction, every festival section includes reinforced concrete wall, steel construction operating system, steel construction crash bar, wall outside anchor system, the inboard anchor system of wall, a plurality of steel construction operating system of reinforced concrete wall top installation, steel construction crash bar is installed on all steel construction operating system, a plurality of wall outside anchor systems of reinforced concrete wall outside installation, the inboard anchor system of a plurality of walls of reinforced concrete wall inside installation, reinforced concrete wall between the adjacent festival section vertically connects through connecting threaded rod. This guardrail is connected more reliably with the bridge girder to dismantle simply, but reuse, guardrail height-adjustable, reinforced concrete wall and steel construction operating system are prefabricated at the mill, transport to bridge position department and are connected with the bridge anchor, reduce construction period by a wide margin, and application prospect is wide.
Description
Technical Field
The utility model relates to a transportation industry bridge and culvert engineering field specifically is to relate to a bridge anticollision barrier is assembled in prefabrication with adjustable height.
Background
The reinforced concrete anti-collision guardrail has strong protective capability and convenient maintenance, is widely applied to highway bridges, but has obvious defects in the actual construction and operation period, and the existing reinforced concrete anti-collision guardrail adopts a construction method of cast-in-place, needs to build a template on the spot and has longer construction period; in a highway bridge reconstruction and extension project, construction mostly adopts a half-width sealing and half-width passing method, temporary guardrails need to be arranged between a new bridge and an old bridge to ensure driving safety during construction, the traditional temporary guardrails are weaker in connection with the bridge and poorer in anti-collision effect, and the temporary guardrails can be dismantled and discarded after the bridge reconstruction and extension are finished, so that the cost is higher; among the current bridge anticollision barrier, highly fixed unchangeable, when being in complicated topography section or the more highway section of heavily driving, the vehicle focus risees, leads to the relative altitude of guardrail to reduce, and the protecting effect reduces greatly to in the bridge reconstruction extension, because the bridge pavement thickness increase, the whole rising of bridge floor elevation leads to the highly decline of original guardrail distance bridge floor, and then influences the crashproof safety class of guardrail.
Disclosure of Invention
The utility model discloses a for overcome the problem that prior art exists, provide a bridge anticollision guardrail is assembled in prefabrication with adjustable height, the utility model discloses optimize the construction of guardrail, prefabricate the guardrail at the factory modularization, transport to bridge site department erection joint, guardrail and bridge connection mode are optimized in the reinforcing for guardrail and the existing reliable connection of bridge, demolish the convenience simultaneously, can change between interim guardrail and permanent guardrail, recycle utilizes, and the guardrail height-adjustable is suitable for multiple bridge highway section and rebuilds the engineering, guarantees the driving safety in the bridge operation, has very important engineering meaning.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a bridge anticollision barrier is assembled in prefabrication with adjustable height, is formed by the concatenation of a plurality of festival section along the bridge length direction, and every festival section includes reinforced concrete wall, steel construction operating system, steel construction crash bar, wall outside anchor system, the inboard anchor system of wall, its characterized in that: a plurality of steel structure operating systems are installed above the reinforced concrete wall body, the steel structure anti-collision rods are installed on all the steel structure operating systems, a plurality of wall body outer side anchoring systems are installed on the outer side of the reinforced concrete wall body, a plurality of wall body inner side anchoring systems are installed on the inner side of the reinforced concrete wall body, and the reinforced concrete wall bodies between adjacent sections are longitudinally connected through connecting threaded rods.
In the scheme, the length of the reinforced concrete wall body is 4-5 m. The reinforced concrete wall is characterized in that a plurality of longitudinal steel bars are arranged in the reinforced concrete wall, an inner anchoring reinforcing steel bar net, an outer anchoring reinforcing steel bar net and a top anchoring reinforcing steel bar net are arranged on the reinforced concrete wall, closed stirrups are arranged on the outer sides of the longitudinal steel bars, connecting holes are formed in two ends of the back of the reinforced concrete wall, the connecting holes are vertically arranged in two rows and consist of cylindrical connecting holes and cuboid anchoring holes, the vertical height of each cuboid anchoring hole is larger than the diameter of each cylindrical connecting hole, a longitudinal connecting threaded rod of the reinforced concrete wall is arranged in the connecting holes of the reinforced concrete wall of two adjacent sections, and the reinforced concrete wall of two adjacent sections is connected through anchoring nuts of the threaded rod.
In the scheme, the steel structure lifting system comprises high-strength anchor bolts, an anchor bolt anchoring steel plate, a vertical lifting steel plate and a lifting steel plate connecting bolt, wherein double rows of anchor bolt connecting holes are formed in the anchor bolt anchoring steel plate, the high-strength anchor bolts are connected with the anchor bolt anchoring steel plate into a whole through anchor bolt connecting nuts and are integrally embedded in the upper part of the reinforced concrete wall body, the high-strength anchor bolts penetrate into a top anchoring reinforcing steel bar net, the vertical anchoring steel plate is an I-shaped steel plate and is welded and connected with the anchor bolt anchoring steel plate into a whole, the vertical anchoring steel plate is partially embedded in the upper part of the reinforced concrete wall body, a plurality of rows of vertical anchoring steel plate bolt holes are formed in two sides of the vertical anchoring steel plate, a plurality of rows of vertical lifting steel plate bolt holes are formed in the vertical lifting steel plate, and the vertical lifting steel plate is arranged on the outer side of the vertical anchoring steel plate, and through lifting steel plate connecting bolt, high-strength nut and vertical anchor steel sheet anchor connection, the steel construction crash bar is installed on vertical lifting steel sheet, and vertical lifting steel sheet realizes through the adjusting with the hookup location of vertical anchor steel sheet that the guardrail total height goes up and down. The distance between the adjacent steel structure lifting systems is 1.5-1.8 m.
In the scheme, the wall outside anchoring system comprises an outside vertical anchoring steel plate, an outside reinforcing steel plate, a wall outside transverse embedded bolt, a girder outside transverse embedded bolt, a wall outside embedded steel plate and a girder outside embedded steel plate, wherein the wall outside transverse embedded bolt and the wall outside embedded steel plate are embedded in the lower part outside of the reinforced concrete wall, the girder outside transverse embedded bolt and the girder outside embedded steel plate are embedded in a bridge girder, the outside reinforcing steel plate is vertically welded with the outside vertical anchoring steel plate and connected with the outside vertical anchoring steel plate, a plurality of rows of outside vertical steel plate bolt holes are formed in the outside vertical anchoring steel plate, double rows of wall outside steel plate bolt holes are formed in the wall outside embedded steel plate, double rows of girder outside steel plate bolt holes are formed in the girder outside embedded steel plate, the wall outside embedded steel plate and the outside vertical anchoring steel plate pass through the wall outside transverse embedded bolt, the outside embedded steel plate and the wall outside vertical anchoring steel plate, The outer side anchoring connecting nut is used for anchoring connection, and the main beam outer side embedded steel plate and the outer side vertical anchoring steel plate are connected in an anchoring mode through the main beam outer side transverse embedded bolt and the outer side anchoring connecting nut. The distance between the adjacent wall body outer side anchoring systems is 1.2-1.5 m.
In the scheme, the wall body inner side anchoring system comprises an inner side vertical steel plate, an inner side horizontal steel plate, a transverse reinforcing steel plate, a wall body inner side embedded steel plate, an inner side transverse connecting bolt, a girder inner side embedded steel plate and an inner side vertical connecting bolt, wherein the inner side vertical steel plate and the inner side horizontal steel plate are vertically welded at the end parts, two ends of the transverse reinforcing steel plate are respectively welded with the inner side vertical steel plate and the inner side horizontal steel plate, a plurality of rows of inner side vertical steel plate bolt holes are formed in the inner side vertical steel plate, a plurality of rows of wall body inner side steel plate bolt holes are formed in the wall body inner side embedded steel plate, the wall body inner side embedded steel plate and the inner side transverse connecting bolt are embedded in the lower inner side of the reinforced concrete wall body, the inner side vertical steel plate and the wall body inner side embedded steel plate are in anchoring connection, be provided with the inboard steel sheet bolt hole of multirow girder on the inboard pre-buried steel sheet of girder, inboard pre-buried steel sheet of girder and inboard vertical connecting bolt are pre-buried in the bridge girder, and inboard pre-buried steel sheet of girder carries out the anchor with inboard horizontal steel sheet through inboard vertical connecting bolt, inboard vertical anchor coupling nut and is connected. The distance between the adjacent wall body inner side anchoring systems is 1.2-1.5 m.
In the scheme, the cross section of the steel structure anti-collision rod is of a circular ring shape and is welded and connected with the vertical lifting steel plates in the steel structure lifting system, the length of the steel structure anti-collision rod in the bridge length direction is equal to that of the reinforced concrete wall body in the bridge length direction, the circular stiffening steel plates are welded inside the steel structure anti-collision rod, and the distance between the adjacent circular stiffening steel plates is 1-1.2 m.
Compared with the prior art, the utility model following beneficial effect and advantage have:
one is as follows: the construction of adopting the prefabrication to assemble, guardrail segment section is prefabricated at the mill, transports to the bridge site after the bridge becomes and assembles the connection, has reduced construction cycle by a wide margin, especially is fit for the engineering that requires tighter to the time limit for a project in public road bridge roof beam reconstruction extension.
The second step is as follows: the guardrail and the bridge girder are simultaneously anchored and connected by the outer side anchoring system and the inner side anchoring system, so that the double anchoring connection is more reliable, and the anti-collision grade of the guardrail is ensured.
And thirdly: guardrail height-adjustable both has been applicable in complicated topography section or the more highway section of heavily driving, carries out guardrail altitude mixture control according to highway section and vehicle condition, and the engineering that highly descends apart from the bridge floor is whole to rise the original guardrail that leads to in bridge later stage reconstruction extension again applicable makes the protective effect of guardrail obtain the guarantee.
Fourthly, the method comprises the following steps: the guardrail is demolishd the convenience, uses the back of accomplishing as interim guardrail, can remove the guardrail and bridge girder's connection restraint, transports permanent guardrail department in bridge position and uses as permanent guardrail, also can transport to other engineering projects and use as interim guardrail, and the use occasion of guardrail can be changed between interim guardrail and permanent guardrail, and recycle has reduced engineering cost by a wide margin.
Drawings
FIG. 1 is a schematic perspective view of the present invention before height adjustment;
FIG. 2 is a schematic cross-sectional view of the present invention before the height is not adjusted;
FIG. 3 is a perspective view of the utility model after the height is raised;
FIG. 4 is a schematic cross-sectional view of the present invention after being raised;
FIG. 5 is a schematic perspective view of a vertical anchoring steel plate in the steel structure lifting system of the present invention;
FIG. 6 is a schematic perspective view of a steel plate anchored by a foundation bolt in the steel structure lifting system of the present invention;
fig. 7 is a schematic perspective view of a vertical lifting steel plate in the steel structure lifting system of the present invention;
FIG. 8 is a schematic view of the connection between the vertical anchoring steel plate and the anchor bolt anchoring steel plate in the steel structure lifting system of the present invention;
FIG. 9 is a cross-sectional layout before the height of the steel structure lifting system is not adjusted;
fig. 10 is a cross-sectional view of the steel structure lifting system according to the present invention after the height thereof is raised;
fig. 11 is a three-dimensional layout view of the steel structure lifting system after the height of the steel structure lifting system is raised;
fig. 12 is a schematic perspective view of the connection between the steel structure lifting system and the steel structure crash bar of the present invention;
fig. 13 is a schematic perspective view of the outer vertical steel plate in the wall outer anchoring system of the present invention;
fig. 14 is a schematic perspective view of the connection between the outer vertical steel plate and the outer reinforcing steel plate in the wall outer anchoring system of the present invention;
fig. 15 is a schematic perspective view of a wall outer side embedded steel plate in the wall outer side anchoring system of the present invention;
fig. 16 is a schematic perspective view of the outer side embedded steel plate of the main beam in the wall outer side anchoring system of the present invention;
fig. 17 is a schematic perspective view of the anchoring system at the outer side of the wall body of the present invention;
fig. 18 is a schematic connection perspective view of the inner vertical steel plate, the inner horizontal steel plate and the transverse reinforcing steel plate in the wall inner anchoring system of the present invention;
fig. 19 is a schematic perspective view of the wall inner side embedded steel plate in the wall inner side anchoring system of the present invention;
fig. 20 is a schematic perspective view of an inner embedded steel plate of a main beam in the wall inner anchoring system of the present invention;
fig. 21 is a schematic perspective view of the wall inner anchoring system of the present invention;
fig. 22 is a side elevation perspective view of the present invention;
FIG. 23 is a schematic view of a front section longitudinal joint back elevation with unadjusted height of the present invention;
fig. 24 is a schematic view of the vertical back elevation of the segment after elevation according to the present invention;
in the attached drawings, 1, a steel structure bumper bar; 2. a reinforced concrete wall body; 21. longitudinal reinforcing steel bars; 22. closing the stirrups; 23. the inner side is anchored with a reinforcing steel bar net; 24. the outside anchors and strengthens the reinforcing bar network; 25. anchoring a reinforcing steel bar mesh at the top; 3. a steel structure lifting system; 31. a high-strength anchor bolt; 32. anchoring a steel plate by using foundation bolts; 32a, foundation bolt connecting holes; 33. the foundation bolt is connected with a nut; 34. vertically anchoring a steel plate; 34a, vertical anchoring steel plate bolt holes; 35. a vertical lifting steel plate; 36. a vertical lifting steel plate bolt hole; 37. a lifting steel plate connecting bolt; 38. a high-strength nut; 4. a wall outer anchoring system; 41. the outer side is vertically anchored with a steel plate; 41a, an outer vertical steel plate bolt hole; 42. an outer reinforcing steel plate; 43. bolts are transversely connected to the outer side of the wall body; 43a, transversely embedding bolts outside the main beam; 44. embedding a steel plate outside the wall body; 44a, a steel plate bolt hole on the outer side of the wall body; 45. embedding a steel plate outside the main beam; 45a and a steel plate bolt hole on the outer side of the main beam; 46. the outer side is anchored with a connecting nut; 5. an anchoring system inside the wall body; 51. an inside vertical steel plate; 51a, an inner vertical steel plate bolt hole; 52. an inner horizontal steel plate; 52a, inner side horizontal steel plate bolt hole; 53. a transverse reinforcing steel plate; 54. embedding a steel plate on the inner side of the wall body; 54a, a steel plate bolt hole on the inner side of the wall body; 55. an inner lateral connecting bolt; 56. the inner side is transversely anchored with a connecting nut; 57. embedding a steel plate at the inner side of the main beam; 57a and a steel plate bolt hole on the inner side of the main beam; 58. an inside vertical connecting bolt; 59. the inner side is vertically anchored with a connecting nut; 6. connecting holes; 61. a cylindrical connection hole; 62. a rectangular solid anchoring hole; 7. connecting a threaded rod; 71. a threaded rod anchor nut; 8. paving an asphalt bridge deck; 8a, casting a concrete bridge deck cast-in-place layer; 9. bridge girder.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in fig. 1, fig. 2, fig. 3, fig. 23, the utility model discloses a bridge anticollision barrier is assembled in prefabrication with adjustable height, is formed by the concatenation of a plurality of festival section along the bridge length direction, and every festival section includes reinforced concrete wall 2, steel construction operating system 3, steel construction crash bar 1, wall outside anchor system 4, the inboard anchor system 5 of wall, its characterized in that: a plurality of steel construction operating system 3 of reinforced concrete wall 2 top installation, steel construction crash bar 1 is installed on all steel construction operating system 3, a plurality of wall outside anchor system 4 of 2 wall outsides of reinforced concrete wall, a plurality of wall inboard anchor system 5 of 2 wall inboard installations of reinforced concrete wall, and reinforced concrete wall 2 between the adjacent festival section vertically passes through connecting threaded rod 7 and connects.
As shown in fig. 2, 22, 23 and 24, a plurality of longitudinal reinforcing bars 21, an inner anchoring reinforcing mesh 23, an outer anchoring reinforcing mesh 24 and a top anchoring reinforcing mesh 25 are arranged in the reinforced concrete wall body 2, a closed hoop 22 is arranged outside the longitudinal reinforcing bars 21, two connecting holes 6 are arranged at two ends of the back of the reinforced concrete wall body 2, the connecting holes 6 are vertically arranged in two rows, each connecting hole 6 is composed of a cylindrical connecting hole 61 and a rectangular anchoring hole 62, the vertical height of each rectangular anchoring hole 62 is larger than the diameter of the cylindrical connecting hole 61, a longitudinal connecting threaded rod 7 of the reinforced concrete wall body 2 is arranged in the connecting hole 6 of the reinforced concrete wall body 2 of two adjacent sections, and the reinforced concrete wall body 2 of two adjacent sections is anchored and connected through a threaded rod anchoring nut 71. The length of the reinforced concrete wall body 2 is 4.8 m.
As shown in fig. 4, 5, 6, 7, 8, 9, 10, 11, and 12, the steel structure elevating system 3 includes a high-strength anchor bolt 31, an anchor bolt anchoring steel plate 32, a vertical anchoring steel plate 34, a vertical elevating steel plate 35, and an elevating steel plate connecting bolt 37, the anchor bolt anchoring steel plate 32 is provided with two rows of anchor bolt connecting holes 32a, the high-strength anchor bolt 31 is connected with the anchor bolt anchoring steel plate 32 by an anchor bolt connecting nut 33 to form a whole and is embedded in the upper portion of the reinforced concrete wall 2, the high-strength anchor bolt 31 penetrates into the top anchoring reinforcing mesh 25, the vertical anchoring steel plate 34 is an i-shaped steel plate and is welded with the anchor bolt anchoring steel plate 32 to form a whole, the vertical anchoring steel plate 34 is partially embedded in the upper portion of the reinforced concrete wall 2, bolt holes 34a are formed in two sides of the vertical anchoring steel plate 34, be provided with the vertical lift steel sheet bolt hole of multirow 36 on the vertical lift steel sheet 35, vertical lift steel sheet 35 sets up in the outside of vertical anchor steel sheet 34, and through lift steel sheet connecting bolt 37, high-strength nut 38 is connected with the anchor of vertical anchor steel sheet 34, steel construction crash bar 1 is installed on vertical lift steel sheet 35, vertical lift steel sheet 35 realizes through adjusting with the hookup location of vertical anchor steel sheet 34 that the guardrail overall height goes up and down, 3 distances of adjacent steel construction operating system are 1.6 m.
As shown in fig. 13, 14, 15, 16, 17, 22, 23 and 24, the wall outer anchoring system 4 comprises an outer vertical anchoring steel plate 41, an outer reinforcing steel plate 42, a wall outer transverse embedded bolt 43, a main beam outer transverse embedded bolt 43a, a wall outer embedded steel plate 44, a main beam outer embedded steel plate 45, the wall outer transverse embedded bolt 43 and the wall outer embedded steel plate 44 are embedded in the lower outer side of the reinforced concrete wall 2, the main beam outer transverse embedded bolt 43a and the main beam outer embedded steel plate 45 are embedded in the bridge main beam 9, the outer reinforcing steel plate 42 is vertically welded to the outer vertical anchoring steel plate 41, a plurality of rows of outer vertical steel plate bolt holes 41a are formed in the outer vertical anchoring steel plate 41, a double row of wall outer steel plate bolt holes 44a are formed in the wall outer embedded steel plate 44, a double row of main beam outer steel plate bolt holes 45a are formed in the main beam outer embedded steel plate 45, the wall body outside embedded steel plate 44 and the outside vertical anchoring steel plate 41 are connected in an anchoring mode through the wall body outside transverse embedded bolt 43 and the outside anchoring connecting nut 46, the main beam outside embedded steel plate 45 and the outside vertical anchoring steel plate 41 are connected in an anchoring mode through the main beam outside transverse embedded bolt 43a and the outside anchoring connecting nut 46, and the distance between the adjacent wall body outside anchoring systems 4 is 1.2 m.
As shown in fig. 18, 19, 20 and 21, the wall inner anchoring system 5 includes an inner vertical steel plate 51, an inner horizontal steel plate 52, a horizontal reinforcing steel plate 53, a wall inner embedded steel plate 54, an inner horizontal connecting bolt 55, a main beam inner embedded steel plate 57 and an inner vertical connecting bolt 58, the inner vertical steel plate 51 and the inner horizontal steel plate 52 are vertically welded at the end, two ends of the horizontal reinforcing steel plate 53 are respectively welded with the inner vertical steel plate 51 and the inner horizontal steel plate 52, the inner vertical steel plate 51 is provided with a plurality of rows of inner vertical steel plate bolt holes 51a, the wall inner embedded steel plate 54 is provided with a plurality of rows of wall inner steel plate bolt holes 54a, the wall inner embedded steel plate 54 and the inner horizontal connecting bolt 55 are embedded inside the lower portion of the reinforced concrete wall 2, the inner vertical steel plate 51 and the wall inner embedded steel plate 54 are embedded inside the reinforced concrete wall 2 through the inner horizontal, The inboard horizontal anchor coupling nut 56 carries out the anchor connection, be provided with the inboard horizontal steel plate bolt hole 52a of multirow on the inboard horizontal steel plate 52, be provided with the inboard steel plate bolt hole 57a of multirow girder on the inboard embedded steel plate 57 of girder, inboard embedded steel plate 57 of girder and inboard vertical connecting bolt 58 are pre-buried in bridge girder 9, inboard embedded steel plate 57 of girder and inboard horizontal steel plate 52 are through inboard vertical connecting bolt 58, inboard vertical anchor coupling nut 59 carries out the anchor connection, adjacent inboard anchor system 5 distance of wall is 1.2 m.
As shown in fig. 12, 23 and 24, the cross section of the steel structure impact beam 1 is circular and is connected with the vertical lifting steel plates 35 in the steel structure lifting system 3 in a welding manner, the length of the steel structure impact beam 1 along the bridge length direction is equal to the length of the reinforced concrete wall body 2 along the bridge length direction, the circular stiffening steel plates 11 are welded inside the steel structure impact beam 1, and the distance between the adjacent circular stiffening steel plates 11 is 1.2 m.
The height-adjustable prefabricated bridge crash barrier as shown in fig. 1 to 24 is described as a specific embodiment in the implementation process of the present invention. In a newly-built highway project, two-way six-lane traffic is adopted, a bridge girder is a concrete girder, an owner has a tight requirement on the construction period and needs to shorten the construction period as much as possible, the height-adjustable prefabricated assembled bridge anti-collision guardrail provided by the utility model is adopted for the anti-collision guardrail of the bridge section, as shown in figures 1, 2, 3 and 4, the anti-collision guardrail comprises a reinforced concrete wall body 2, a steel structure lifting system 3, a steel structure bumper bar 1, a wall body outer side anchoring system 4, a wall body inner side anchoring system 5 and a connecting threaded rod 7 arranged between two sections of reinforced concrete wall bodies 2, the length of the reinforced concrete wall body 2 of each section is 4.8m, the distance between the adjacent steel structure lifting systems 3 is 1.6m, as shown in figures 1, 17 and 21, the reinforced concrete wall body 2 of each section is anchored by the wall body outer side anchoring system 4 and the wall body inner side anchoring system 5 and the bridge girder 9, the distance between adjacent wall outer side anchoring systems 4 is 1.2m, the distance between adjacent wall inner side anchoring systems 5 is 1.2m, transverse embedded bolts 43a outside the embedded girder in a bridge girder 9, embedded steel plates 45 outside the girder, embedded steel plates 57 inside the girder and vertical connecting bolts 58 inside the girder, as shown in fig. 23 and 24, two adjacent reinforced concrete walls 2 are vertically connected through connecting threaded rods 7 and threaded rod anchoring nuts 71 in an anchoring manner, the cross section of the steel structure impact beam 1 is of a circular ring shape, the length of the steel structure impact beam 1 in the bridge length direction is equal to that of the reinforced concrete walls 2 in the bridge length direction, the circular stiffening steel plates 11 are welded inside the steel structure impact beam 1, and the distance between adjacent circular stiffening steel plates 11 is 1.2 m. In the embodiment, the height-adjustable prefabricated assembled bridge anti-collision guardrail is adopted as the anti-collision guardrail, the construction of the upper structure of the bridge and the prefabrication construction of the guardrail can be simultaneously carried out, the guardrail can be conveyed to the bridge position for assembly connection after the construction of the upper structure of the bridge is finished, the construction period is greatly reduced, the guardrail and the main beam of the bridge are simultaneously anchored and connected by the outer anchoring system and the inner anchoring system, the double anchoring connection is more reliable, the anti-collision grade of the guardrail is ensured, the height of the guardrail can be adjusted, the height can be adjusted according to the road sections with different complexity of the project and different types of vehicles passing by, meanwhile, the height-adjustable function of the guardrail can ensure that the effective height of the guardrail is kept unchanged after the bridge deck elevation is raised due to reconstruction and extension, under the prerequisite of saving time limit for a project and engineering cost, the guard effect of assurance guardrail that can the at utmost.
Claims (10)
1. The utility model provides a bridge anticollision barrier is assembled in prefabrication with adjustable height, is formed by the concatenation of a plurality of festival section along the bridge length direction, and every festival section includes reinforced concrete wall (2), steel construction operating system (3), steel construction crash bar (1), wall outside anchor system (4), the inboard anchor system (5) of wall, its characterized in that: a plurality of steel structure operating systems (3) are installed above a reinforced concrete wall body (2), steel structure crash bars (1) are installed on all the steel structure operating systems (3), a plurality of wall body outside anchoring systems (4) are installed on the outer side of the reinforced concrete wall body (2), a plurality of wall body inside anchoring systems (5) are installed on the inner side of the reinforced concrete wall body (2), and the reinforced concrete wall body (2) between adjacent sections are longitudinally connected through connecting threaded rods (7).
2. The prefabricated assembled bridge anti-collision guardrail with adjustable height as claimed in claim 1, wherein: the length of the reinforced concrete wall body (2) is 4-5 m.
3. The prefabricated bridge crash barrier with adjustable height of claim 1 or 2, wherein: a plurality of longitudinal steel bars (21), an inner side anchoring reinforcing steel bar net (23), an outer side anchoring reinforcing steel bar net (24) and a top anchoring reinforcing steel bar net (25) are arranged in the reinforced concrete wall body (2), the outer side of the longitudinal steel bar (21) is provided with a closed stirrup (22), two ends of the back of the reinforced concrete wall body (2) are provided with connecting holes (6), the connecting holes (6) are vertically arranged in two rows, the connecting holes (6) are composed of cylindrical connecting holes (61) and rectangular anchoring holes (62), the vertical height of the rectangular anchoring holes (62) is larger than the diameter of the cylindrical connecting holes (61), the longitudinal connecting threaded rods (7) of the reinforced concrete wall body (2) are arranged in the connecting holes (6) of the reinforced concrete wall body (2) of two adjacent sections, the reinforced concrete wall body (2) of two adjacent sections is connected through the anchoring of a threaded rod anchoring nut (71).
4. The prefabricated assembled bridge anti-collision guardrail with adjustable height as claimed in claim 3, wherein: the steel structure lifting system (3) comprises high-strength anchor bolts (31), anchor bolt anchoring steel plates (32), vertical anchoring steel plates (34), vertical lifting steel plates (35) and lifting steel plate connecting bolts (37), wherein double rows of anchor bolt connecting holes (32a) are formed in the anchor bolt anchoring steel plates (32), the high-strength anchor bolts (31) are anchored and connected with the anchor bolt anchoring steel plates (32) into a whole through anchor bolt connecting nuts (33) and are integrally embedded at the upper part of the reinforced concrete wall body (2), the high-strength anchor bolts (31) penetrate into a top anchoring reinforcing steel bar net (25), the vertical anchoring steel plates (34) are I-shaped steel plates and are welded and connected with the anchor bolt anchoring steel plates (32) into a whole, the vertical anchoring steel plates (34) are partially embedded at the upper part of the reinforced concrete wall body (2), a plurality of rows of vertical anchoring steel plate bolt holes (34a) are formed in two sides of the vertical anchoring steel plates (34), the steel structure anti-collision device is characterized in that a plurality of rows of vertical lifting steel plate bolt holes (36) are formed in the vertical lifting steel plates (35), the vertical lifting steel plates (35) are arranged on the outer sides of the vertical anchoring steel plates (34) and are connected with the vertical anchoring steel plates (34) in an anchoring mode through lifting steel plate connecting bolts (37) and high-strength nuts (38), and the steel structure anti-collision rods (1) are installed on the vertical lifting steel plates (35).
5. The prefabricated assembled bridge anti-collision guardrail with adjustable height as claimed in claim 4, wherein: the distance between the adjacent steel structure lifting systems (3) is 1.5-1.8 m.
6. The prefabricated assembled bridge anti-collision guardrail with adjustable height as claimed in claim 3, wherein: the wall body outer side anchoring system (4) comprises an outer side vertical anchoring steel plate (41), an outer side reinforcing steel plate (42), a wall body outer side transverse embedded bolt (43), a main beam outer side transverse embedded bolt (43a), a wall body outer side embedded steel plate (44) and a main beam outer side embedded steel plate (45), wherein the wall body outer side transverse embedded bolt (43) and the wall body outer side embedded steel plate (44) are embedded in the outer side of the lower part of the reinforced concrete wall body (2), the main beam outer side transverse embedded bolt (43a) and the main beam outer side embedded steel plate (45) are embedded in a bridge main beam (9), the outer side reinforcing steel plate (42) is vertically welded with the outer side vertical anchoring steel plate (41), a plurality of rows of outer side vertical steel plate bolt holes (41a) are arranged on the outer side vertical anchoring steel plate (41), and double rows of wall body outer side steel plate bolt holes (44a) are arranged on the wall body outer side embedded steel plate (44), be provided with double girder outside steel sheet bolt hole (45a) on girder outside embedded steel plate (45), wall outside embedded steel plate (44) and the vertical anchor steel sheet in the outside (41) carry out the anchor through horizontal embedded bolt in the wall outside (43), outside anchor coupling nut (46) and are connected, and girder outside embedded steel plate (45) and the vertical anchor steel sheet in the outside (41) carry out the anchor through horizontal embedded bolt in the girder outside (43a), outside anchor coupling nut (46) and are connected.
7. The prefabricated assembled bridge anti-collision guardrail with adjustable height as claimed in claim 6, wherein: the distance between the adjacent wall body outer side anchoring systems (4) is 1.2-1.5 m.
8. The prefabricated assembled bridge anti-collision guardrail with adjustable height as claimed in claim 3, wherein: the wall body inner side anchoring system (5) comprises an inner side vertical steel plate (51), an inner side horizontal steel plate (52), a transverse reinforcing steel plate (53), a wall body inner side embedded steel plate (54), an inner side transverse connecting bolt (55), a main beam inner side embedded steel plate (57) and an inner side vertical connecting bolt (58), wherein the inner side vertical steel plate (51) and the inner side horizontal steel plate (52) are vertically welded at the end parts, the two ends of the transverse reinforcing steel plate (53) are respectively welded with the inner side vertical steel plate (51) and the inner side horizontal steel plate (52), a plurality of rows of inner side vertical steel plate bolt holes (51a) are formed in the inner side vertical steel plate (51), a plurality of rows of wall body inner side steel plate bolt holes (54a) are formed in the wall body inner side embedded steel plate (54), and the inner side embedded steel plate (54) and the inner side transverse connecting bolt (55) are embedded in the lower inner side of the reinforced concrete wall body (2), the inner side vertical steel plate (51) and the inner side embedded steel plate (54) of the wall body are connected in an anchoring mode through inner side transverse connecting bolts (55) and inner side transverse anchoring connecting nuts (56), a plurality of rows of inner side horizontal steel plate bolt holes (52a) are formed in the inner side horizontal steel plate (52), a plurality of rows of inner side main beam steel plate bolt holes (57a) are formed in the inner side embedded steel plate (57) of the main beam, the inner side embedded steel plate (57) of the main beam and the inner side vertical connecting bolts (58) are embedded in a main beam (9), the inner side embedded steel plate (57) of the main beam and the inner side horizontal steel plate (52) are connected in an anchoring mode through the inner side vertical connecting bolts (58) and the inner side vertical anchoring connecting nuts (59).
9. The prefabricated assembled bridge anti-collision guardrail with adjustable height of claim 8, wherein: the distance between the adjacent wall inner side anchoring systems (5) is 1.2-1.5 m.
10. The prefabricated assembled bridge anti-collision guardrail with adjustable height as claimed in claim 4, wherein: the cross section of the steel structure anti-collision rod (1) is of a circular ring shape and is connected with a vertical lifting steel plate (35) in a steel structure lifting system (3) in a welding mode, the length of the steel structure anti-collision rod (1) in the bridge length direction is equal to that of the reinforced concrete wall body (2) in the bridge length direction, a circular stiffening steel plate (11) is welded inside the steel structure anti-collision rod (1), and the distance between adjacent circular stiffening steel plates (11) is 1-1.2 m.
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| CN202022194686.6U CN213925853U (en) | 2020-09-27 | 2020-09-27 | Height-adjustable prefabricated assembled bridge anti-collision guardrail |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114351583A (en) * | 2022-01-12 | 2022-04-15 | 山东高速股份有限公司 | Reinforced flexible anti-collision wall for highway bridge and construction method thereof |
| CN114427193A (en) * | 2022-03-11 | 2022-05-03 | 湖南大学 | Anchored UHPC curved surface anti-collision guardrail for splash zone bridge and construction method thereof |
-
2020
- 2020-09-27 CN CN202022194686.6U patent/CN213925853U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114351583A (en) * | 2022-01-12 | 2022-04-15 | 山东高速股份有限公司 | Reinforced flexible anti-collision wall for highway bridge and construction method thereof |
| CN114427193A (en) * | 2022-03-11 | 2022-05-03 | 湖南大学 | Anchored UHPC curved surface anti-collision guardrail for splash zone bridge and construction method thereof |
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