CN113512972A - Waveform beam guardrail and reinforcing method - Google Patents
Waveform beam guardrail and reinforcing method Download PDFInfo
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- CN113512972A CN113512972A CN202110423388.6A CN202110423388A CN113512972A CN 113512972 A CN113512972 A CN 113512972A CN 202110423388 A CN202110423388 A CN 202110423388A CN 113512972 A CN113512972 A CN 113512972A
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- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 170
- 238000000034 method Methods 0.000 title claims description 10
- 230000001681 protective effect Effects 0.000 claims abstract description 31
- 230000000694 effects Effects 0.000 claims abstract description 15
- 230000001052 transient effect Effects 0.000 claims abstract description 10
- 230000000903 blocking effect Effects 0.000 claims abstract description 9
- 238000005381 potential energy Methods 0.000 claims description 37
- 230000000670 limiting effect Effects 0.000 claims description 27
- 229910000831 Steel Inorganic materials 0.000 claims description 21
- 239000010959 steel Substances 0.000 claims description 21
- 230000002787 reinforcement Effects 0.000 claims description 16
- 230000002829 reductive effect Effects 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 5
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000005728 strengthening Methods 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 230000003116 impacting effect Effects 0.000 abstract description 5
- 230000002441 reversible effect Effects 0.000 description 6
- 230000004044 response Effects 0.000 description 5
- 230000008439 repair process Effects 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 238000004146 energy storage Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000003578 releasing effect Effects 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
- E01F15/02—Continuous barriers extending along roads or between traffic lanes
- E01F15/04—Continuous barriers extending along roads or between traffic lanes essentially made of longitudinal beams or rigid strips supported above ground at spaced points
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
- E01F15/02—Continuous barriers extending along roads or between traffic lanes
- E01F15/04—Continuous barriers extending along roads or between traffic lanes essentially made of longitudinal beams or rigid strips supported above ground at spaced points
- E01F15/0461—Supports, e.g. posts
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
- E01F15/02—Continuous barriers extending along roads or between traffic lanes
- E01F15/04—Continuous barriers extending along roads or between traffic lanes essentially made of longitudinal beams or rigid strips supported above ground at spaced points
- E01F15/0484—Installing; Repairing; Adjusting
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- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention discloses a waveform beam guardrail, which comprises at least one upright column array vertically fixed on a roadbed, wherein the upright column array comprises at least two upright columns, a waveform protective beam is arranged between every two adjacent upright columns, a first reinforcing member is arranged at the joint of the waveform protective beam and the upright columns, and a second reinforcing member is arranged at the joint of the upright columns and the ground. According to the invention, the first reinforcing member and the second reinforcing member are used for linking and opening to carry out transient reinforcing on the waveform protection beam and the upright column at the moment when the waveform protection beam is impacted so as to enhance the resistance strength of the waveform protection beam and the upright column and provide enhanced blocking protection for an impacted object, and the first reinforcing member and the second reinforcing member can be used for carrying out structural connection on adjacent upright columns, so that the opposite and inward instant tension generated by the impacting object impacting the protection beam between the two upright columns is effectively transmitted to a roadbed, and the protection effect is improved.
Description
Technical Field
The invention relates to the technical field of pavement protection, in particular to a corrugated beam guardrail and a reinforcing method.
Background
A corrugated beam barrier, which is a kind of barrier that is a facility for road collision avoidance, is the main form of a semi-rigid barrier, and is a continuous structure that corrugated steel guard beams are spliced with each other and supported by main columns. The deformation of the roadbed, the upright posts and the cross beams is utilized to absorb collision energy, and the out-of-control vehicle is forced to change direction and return to the normal running direction, so that the vehicle is prevented from rushing out of the road, the vehicle and passengers are protected, and the loss caused by accidents is reduced. The wave-shaped beam guardrail has the advantages of combining rigidity and flexibility, having stronger capabilities of absorbing collision energy and preventing collision, having better sight induction function, being capable of coordinating with the line shape of a road, having beautiful and coordinated appearance, being capable of being used on a small-radius curve and being easy to replace the damaged part. The composite wave beam guardrail can be used on narrow central dividing strips. A reinforced corrugated beam guardrail is selected for sections where vehicles are out of the way (bridge) and may have serious consequences.
The prior art CN202010677839.4 discloses a corrugated beam guardrail and a reinforcing method thereof, wherein the corrugated beam guardrail comprises an upright post, a first anti-blocking block and a corrugated plate. The reinforcing method comprises the following steps: arranging a reinforcing beam on one side of the corrugated plate close to the upright post, wherein the reinforcing beam extends along the length direction of the corrugated plate so as to increase the longitudinal rigidity of the corrugated beam guardrail; arranging a second anti-blocking block to connect the reinforcing beam and the upright; the first anti-blocking block, the upright post and the second anti-blocking block form a vertical stress body; the anti-toppling component is additionally arranged at the bottom of the upright column to prevent the upright column from toppling towards the non-collision side, the corrugated beam guardrail reinforcing method is provided, the longitudinal rigidity and the vertical rigidity of the existing corrugated beam guardrail are respectively reinforced, the outward toppling and the deformation of the guardrail of a vehicle after collision are reduced, and the effective protection is formed on the vehicle, drivers and passengers and structures outside the guardrail.
Although the CN202010677839.4 in the prior art can respectively reinforce the corrugated beam guardrail in the longitudinal rigidity and vertical rigidity directions, reduce the outward inclination of the vehicle and the deformation of the guardrail after collision, and effectively protect the vehicle, the driver and passengers and the structure outside the guardrail, certain defects still exist, such as the undifferentiated response to the collision strength, the reinforcing beam is not needed to be used for protection under the condition that the collision strength is smaller, the original basic protective beam can complete protection, and the undifferentiated response can cause the reinforcing beam and the protective beam to resist collision and generate deformation, and needs to be replaced, compared with the situation that only the basic protective beam is replaced, the raw material cost and the labor cost are increased, and the upright posts are mutually independent, when a target object impacts the protective beam between the two upright posts, the instantaneous tension facing inwards can be generated, and the tension between the two independent upright posts can not be effectively transmitted to the roadbed, thereby easily making two stands produce the fracture phenomenon.
Disclosure of Invention
The invention aims to provide a corrugated beam guardrail, which aims to solve the technical problems that in the prior art, the reinforcing beam and the protective beam can resist impact and deform in any impact due to indiscriminate response to impact strength, raw materials and labor cost are increased compared with the situation that only the basic protective beam is replaced, and the upright columns are independent from each other, so that a target object can not impact the protective beam between the two upright columns to effectively transmit instantaneous tension inwards to a roadbed, and the two upright columns are easy to break.
In order to solve the technical problems, the invention specifically provides the following technical scheme:
the utility model provides a wave form roof beam guardrail, includes an at least vertical fixation's stand array on the road bed, the stand array includes two piece at least stands, be provided with wave form guard beam between two adjacent stands the junction of wave form guard beam and stand is provided with first reinforcement member the stand is provided with the second reinforcement member with the junction on ground, first reinforcement member with the second reinforcement member is used for wave form guard beam receives the striking linkage in the twinkling of an eye and opens right wave form guard beam and stand carry out the resistance intensity of transient state reinforcement with reinforcing wave form guard beam and stand and provide the protection of blocking of strengthening for the striking object.
As a preferable aspect of the present invention, the first reinforcing member includes a first reinforcing beam and a second reinforcing beam which are respectively transversely disposed at the joints of two adjacent vertical columns and the corrugated protection beam, each of the first reinforcing beam and the second reinforcing beam includes a first beam section, a second beam section, and a third beam section, the inner diameter width of each of the first reinforcing beam section, the second reinforcing beam section, and the third beam section is sequentially reduced and connected to each other by a strip-shaped first elastic member, the two end portions of each of the first beam section, the second beam section, and the third beam section are respectively an end portion and an end portion, one end portion of the first beam section is fixedly connected to the vertical column, the two end portions of the first beam section are externally sleeved to one end portion of the second beam section, the two end portions of the second beam section are externally sleeved to one end portion of the third beam section, and the two end portions of the third beam section and one end portion of the first beam section are respectively connected to the two end portions of the first elastic member, the first beam section, the second beam section and the third beam section are connected in a laminated mode in a sleeved mode under the stretching-resistant elastic potential energy storage effect of the first elastic member, and are connected in a dispersed mode in a transverse strip mode consistent with the waveform protection beam under the stretching-resistant elastic potential energy releasing effect of the first elastic member.
As a preferable aspect of the present invention, the second reinforcing member includes a first reinforcing longitudinal beam and a second reinforcing longitudinal beam which are longitudinally disposed at a connection portion between two adjacent vertical columns and the corrugated protection beam, each of the first reinforcing longitudinal beam and the second reinforcing longitudinal beam includes a first longitudinal beam section, a second longitudinal beam section, and a third longitudinal beam section, inner diameter widths of which are sequentially reduced, and which are sequentially connected by a strip-shaped second elastic member, both end portions of the first longitudinal beam section, the second longitudinal beam section, and the third longitudinal beam section are respectively an end portion and an end portion, one end portion of the first longitudinal beam section is fixedly connected to the vertical columns, both end portions of the first longitudinal beam section are externally sleeved to one end portion of the second longitudinal beam section, both end portions of the second longitudinal beam section are externally sleeved to one end portion of the third longitudinal beam section, and both end portions of the third longitudinal beam section and one end portion of the first longitudinal beam section are respectively connected to both end portions of the second elastic member, the first longitudinal beam section, the second longitudinal beam section and the third longitudinal beam section are connected in a laminated mode in a sleeved mode under the stretching-resistant elastic potential energy storage effect of the second elastic member, and are connected in a dispersed mode in a longitudinal strip mode consistent with the vertical column under the stretching-resistant elastic potential energy releasing effect of the second elastic member.
As a preferable scheme of the present invention, the first elastic member and the second elastic member are both of the same structure, the first beam section and the first beam section are respectively provided with a touch control for controlling the first elastic member and the second elastic member to perform the elastic potential energy storage or potential energy linkage, the touch control includes a first limit hole and a second limit hole respectively arranged on the first beam section and the first beam section, and a touch steel rope having one end connected with the end of the first elastic member and the end of the second elastic member together through the first limit hole and the second limit hole respectively, the other end of the touch steel rope is laid along the wave-shaped guard beam towards the roadbed side surface to an adjacent upright post and passes through the first limit hole and the second limit hole on the first beam section and the first beam section to be connected with the end of the first elastic member and the end of the second elastic member together, the tactile steel cord is broken under the impact action so that the first elastic member and the second elastic member synchronously perform tensile elastic potential energy release.
As a preferable aspect of the present invention, an outer diameter of both ends of the third beam section of the first reinforcing beam is smaller than an inner diameter of both ends of the third beam section of the second reinforcing beam.
As a preferable aspect of the present invention, the inner peripheral portion of the corrugated protection beam is provided with a lateral limiting channel for limiting two ends of the third beam section of the first reinforcing beam and two ends of the third beam section of the second reinforcing beam to be connected in a nesting manner, so that the first reinforcing beam and the second reinforcing beam are connected to form a lateral strip shape consistent with the corrugated protection beam, the lateral limiting channel includes a symmetrical stepped tubular structure matched with the layer shape formed by the first beam section, the second beam section and the third beam section which are connected in a dispersed manner, and the symmetrical stepped tubular structure is in a cross-symmetry in both the lateral direction and the longitudinal direction.
As a preferable scheme of the present invention, both ends of the third longitudinal beam section of the first reinforcing longitudinal beam and both ends of the third longitudinal beam section of the second reinforcing longitudinal beam are in a pointed cone structure, and a groove structure consistent with the pointed cone structure is provided at a connection between the upright column and the ground.
As a preferable aspect of the present invention, the inner periphery of the pillar is provided with a longitudinal limiting channel for limiting two ends of the third beam section of the first reinforcing beam and two ends of the third beam section of the second reinforcing beam to be inserted into the groove structure in an embedded manner, and the longitudinal limiting channel includes a stepped tubular structure matching with the layered form formed by the first beam section, the second beam section and the third beam section in a distributed connection manner.
As a preferable aspect of the present invention, the pillar and the corrugated protection beam are fixedly connected by a bolt.
As a preferable aspect of the present invention, there is provided a method of reinforcing a corrugated girder guard rail according to the present invention, comprising the steps of:
step S1, assembling the upright posts, the waveform protection beam, the first reinforcing member and the second reinforcing member in an unreinforced form to form a waveform beam guardrail, and installing the waveform beam guardrail to a roadbed to be protected;
step S2, the touch control is used for monitoring the impact state and degree of the waveform guard beam, and controlling the first reinforcing member and the second reinforcing member to change from the unreinforced state to the reinforced state in a linkage manner, specifically:
if the impact is not generated or the impact degree is light, the touch steel rope is not broken, and only the wave-shaped protective beam and the upright post are utilized for basic protection;
if impact occurs and the impact degree is high, the touch steel rope is broken, the first elastic member and the second elastic member release energy through synchronous elastic potential energy, so that the first reinforcing cross beam and the second reinforcing cross beam are transversely connected along the transverse limiting channel to form a transverse strip-shaped form to perform transient reinforcing on the wave-shaped protective beam, and the first reinforcing longitudinal beam and the second reinforcing longitudinal beam are inserted into a groove structure of the roadbed along the longitudinal channel to form a longitudinal strip-shaped form to perform transient reinforcing on the upright post;
step S3, after the collision stops, repairing the deformed parts of the corrugated beam guardrail, enabling the first reinforcing member and the second reinforcing member to be in an unreinforced state, and continuously monitoring the collision state and degree by using a touch control;
the unreinforced state refers to a state that the first elastic member and the second elastic member are rigidly stretched by the touch steel rope, the first longitudinal beam section, the second longitudinal beam section and the third longitudinal beam section are connected in a laminated state in a sleeved mode under the tensile elastic potential energy storage effect of the second elastic member, and the first transverse beam section, the second transverse beam section and the third transverse beam section are connected in a laminated state in a sleeved mode under the tensile elastic potential energy storage effect of the first elastic member.
Compared with the prior art, the invention has the following beneficial effects:
the first reinforcing member and the second reinforcing member are used for linking and opening the wave-shaped protective beam and the upright column at the moment when the wave-shaped protective beam is impacted so as to reinforce the resistance strength of the wave-shaped protective beam and the upright column and provide reinforced blocking protection for an impacted object, the first reinforcing member and the second reinforcing member can be used for structurally connecting adjacent upright columns, the instant tension generated by the impacted object impacting the protective beam between the two upright columns in the opposite direction and the inward direction is effectively transmitted to a roadbed, the protection effect is improved, meanwhile, the differential response can be carried out according to the impact strength, the protection is finished by only using the basic protective beam under the condition that the impact strength is smaller, and the first reinforcing member and the second reinforcing member are used for reinforcing and protecting under the condition that the impact strength is larger, so that the non-differential repair is avoided, and the repair cost is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
FIG. 1 is a schematic structural view of a corrugated beam guardrail provided by an embodiment of the invention;
FIG. 2 is a schematic top view of a corrugated beam guardrail provided by an embodiment of the invention;
FIG. 3 is a schematic view of a corrugated beam guardrail reinforcing structure provided by an embodiment of the invention;
FIG. 4 is a schematic top view of a corrugated beam guardrail reinforcing structure provided by an embodiment of the invention;
fig. 5 is a flowchart of a reinforcement method according to an embodiment of the present invention.
The reference numerals in the drawings denote the following, respectively:
1-column array; 2-a wave-shaped guard beam; 3-a first reinforcement member; 4-a second reinforcement member; 5-a first elastic member; 6-a second elastic member; 7-a tactile control; 8-transverse limiting channel; 9-longitudinal limit channel;
101-a column;
301-a first reinforcing crossmember; 302-a second reinforcement beam; 303-first beam section; 304-a second beam section; 305-a third beam section;
401-a first reinforcing stringer; 402-a second reinforcing stringer; 403-a first longitudinal beam section; 404-a second longitudinal beam section; 405-a third longitudinal beam section;
701-a first limiting hole; 702-a second restraint aperture; 703-touch steel cord.
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.
As shown in fig. 1 to 5, the invention provides a corrugated beam guardrail, which comprises at least one upright column array 1 vertically fixed on a roadbed, wherein the upright column array 1 comprises at least two upright columns 101, a corrugated protection beam 2 is arranged between every two adjacent upright columns 101, a first reinforcing member 3 is arranged at the joint of the corrugated protection beam 2 and the upright column 101, a second reinforcing member 4 is arranged at the joint of the upright column 101 and the ground, and the first reinforcing member 3 and the second reinforcing member 4 are used for linking and opening to perform transient reinforcement on the corrugated protection beam 2 and the upright column 101 at the moment that the corrugated protection beam 2 is impacted so as to enhance the resistance strength of the corrugated protection beam 2 and the upright column 101 and provide enhanced blocking protection for the impacted objects.
The blocking protection is to absorb collision energy by using deformation of a roadbed, the upright columns 101 and the protective beams, force the collision object to change direction and return to a normal driving direction to prevent the collision object from rushing out of a road so as to protect the collision object and passengers and reduce loss caused by an accident, wherein the upright columns 101 and the waveform protective fence are used for providing basic blocking protection for the collision object when the collision intensity of the collision object is low, and providing enhanced blocking protection for the collision object when the collision intensity of the collision object is high.
As shown in fig. 1 to 4, the first reinforcing member 3 includes a first reinforcing beam 301 and a second reinforcing beam 302 respectively transversely disposed at the connection portions of the adjacent two upright posts 101 and the corrugated protection beam 2, each of the first reinforcing beam 301 and the second reinforcing beam 302 includes a first beam section 303, a second beam section 304 and a third beam section 305 having inner diameter widths sequentially decreasing and sequentially connected to each other by a strip-shaped first elastic member 5, both end portions of the first beam section 303, the second beam section 304 and the third beam section 305 are respectively an end portion and a second end portion, one end portion of the first beam section 303 is fixedly connected to the upright post 101, both end portions of the first beam section 303 are externally sleeved on one end portion of the second beam section 304, both end portions of the second beam section 304 are externally sleeved on one end portion of the third beam section 305, both end portions of the third beam section 305 and one end portion of the first beam section 303 are respectively connected to both end portions of the first elastic member 5, the first beam section 303, the second beam section 304 and the third beam section 305 are connected in a nested manner in a layered manner under the action of the energy storage of the tensile elastic potential energy of the first elastic member 5, and are connected in a dispersed manner in a transverse strip-like manner consistent with the waveform protection beam 2 under the action of the energy release of the tensile elastic potential energy of the first elastic member 5.
The first cross beam section 303, the second cross beam section 304 and the third cross beam section 305 are all of a tubular structure, tubular central axes of the first cross beam section 303, the second cross beam section 304 and the third cross beam section 305 are located on the same straight line, the first elastic member 5 is located on the straight line where the tubular central axes of the first cross beam section 303, the layered form is that elastic potential energy of the first elastic member 5 is stored to generate reverse tensile force to the third cross beam section 305, so that the third cross beam section 305 pushes the second cross beam section 304 to be embedded into the first cross beam section 303 together to form a nested layered structure, and the strip form is that the elastic potential energy of the first elastic member 5 is released to cut off the reverse tensile force to the third cross beam section 305, so that the third cross beam section 305 generates a reverse movement to drive the second cross beam section 304 to be pulled out from the first cross beam section 303 together to form a continuous strip structure.
The inner periphery of the wave-shaped guard beam 2 is provided with a transverse limiting channel 8 which is used for limiting the two ends of the third beam section 305 of the first reinforcing beam 301 and the two ends of the third beam section 305 of the second reinforcing beam 302 to be connected in a nesting mode, so that the first reinforcing beam 301 and the second reinforcing beam 302 are connected to form a transverse long strip shape consistent with the wave-shaped guard beam 2, the transverse limiting channel 8 comprises a symmetrical stepped tubular structure which is formed by dispersedly connecting the first beam section 303, the second beam section 304 and the third beam section 305 and is matched with a layered shape, and the symmetrical stepped tubular structure is in transverse and longitudinal two-way cross symmetry.
Because the outer diameter of the two ends of the third beam section 305 of the first reinforcing beam 301 is smaller than the inner diameter of the two ends of the third beam section 305 of the second reinforcing beam 302, the elastic potential energy of the first elastic member 5 is released to enable the third beam section 305 and the second beam section 304 of the first reinforcing beam 301 and the third beam section 305 and the second beam section 304 of the second reinforcing beam 302 to move oppositely along the transverse limiting channel 8, so that the third beam section 305 of the first reinforcing beam 301 is embedded into the third beam section 305 of the second reinforcing beam 302, and the first reinforcing beam 301 and the second reinforcing beam 302 jointly form an elongated shape consistent with the corrugated guard beam 2, thereby reinforcing the corrugated guard beam 2.
The second reinforcing member 4 comprises a first reinforcing longitudinal beam 401 and a second reinforcing longitudinal beam 402 which are longitudinally arranged at the connecting part of two adjacent upright posts 101 and the corrugated protective beam 2, the first reinforcing longitudinal beam 401 and the second reinforcing longitudinal beam 402 respectively comprise a first longitudinal beam section 403, a second longitudinal beam section 404 and a third longitudinal beam section 405, the inner diameter and the width of the first reinforcing longitudinal beam section 401 and the inner diameter and the width of the second reinforcing longitudinal beam section 402 are sequentially reduced, the first reinforcing longitudinal beam section 403, the second longitudinal beam section 404 and the third longitudinal beam section 405 are sequentially connected through a strip-shaped second elastic member 6, two end parts of the first longitudinal beam section 403, the second longitudinal beam section 404 and the third longitudinal beam section 405 are respectively one end part and two end parts of the first longitudinal beam section 403 are fixedly connected with the upright posts 101, two end parts of the first longitudinal beam section 403 are sleeved on one end part of the second longitudinal beam section 404, two end parts of the second longitudinal beam section 404 are sleeved on one end part of the third longitudinal beam section 405, two end parts of the third longitudinal beam section 405 and one end part of the first longitudinal beam section 403 are respectively connected with two end parts of the second elastic member 6, the first longitudinal beam section 403, the second longitudinal beam section 402 is connected with the second longitudinal beam section 404, the second reinforcing longitudinal beam section 402, The second longitudinal beam section 404 and the third longitudinal beam section 405 are connected in a nested manner in a layered manner under the action of the energy storage of the tensile elastic potential energy of the second elastic member 6, and are connected in a dispersed manner in a longitudinal strip-shaped manner consistent with the vertical column 101 under the action of the energy release of the tensile elastic potential energy of the second elastic member 6.
The two ends of the third longitudinal beam section 405 of the first reinforcing longitudinal beam 401 and the two ends of the third longitudinal beam section 405 of the second reinforcing longitudinal beam 402 are both in a pointed cone structure, and a groove structure consistent with the pointed cone structure is arranged at the joint of the upright column 101 and the ground.
The first longitudinal beam section 403, the second longitudinal beam section 404 and the third longitudinal beam section 405 are all of tubular structures, tubular central axes of the first longitudinal beam section 403, the second longitudinal beam section 404 and the third longitudinal beam section 405 are located on the same straight line, the second elastic member 6 is located on the straight line where the tubular central axes of the first longitudinal beam section, the layered structure is that elastic potential energy of the second elastic member 6 is stored to generate reverse tensile force to the third longitudinal beam section 405, so that the third longitudinal beam section 405 pushes the second longitudinal beam section 404 to be embedded into the first longitudinal beam section 403 together to form a nested layered structure, and the strip-shaped structure is that the elastic potential energy of the second elastic member 6 is released to cut off the reverse tensile force to the third longitudinal beam section 405, so that the third longitudinal beam section 405 generates a reverse movement to drive the second longitudinal beam section 404 to be pulled out from the first longitudinal beam section 403 together to form a continuous strip-shaped structure.
The inner periphery of the upright 101 is provided with a longitudinal limiting channel 9 for limiting the two ends of the third beam section 305 of the first reinforcing longitudinal beam 401 and the two ends of the third beam section 305 of the second reinforcing transverse beam 302 to be embedded and inserted into the groove structure, and the longitudinal limiting channel 9 comprises a stepped tubular structure matched with the layered shape formed by the first longitudinal beam section 403, the second longitudinal beam section 404 and the third longitudinal beam section 405 in a scattered connection mode.
Specifically, the elastic potential energy of the second elastic member 6 is released to enable the third longitudinal beam section 405 and the second longitudinal beam section 404 of the first reinforcing longitudinal beam 401 and the third longitudinal beam section 405 and the second longitudinal beam section 404 of the second reinforcing longitudinal beam 402 to move oppositely along the longitudinal limiting channel 9, so that the third longitudinal beam section 405 of the first reinforcing longitudinal beam 401 and the third longitudinal beam section 405 of the second reinforcing longitudinal beam 402 are respectively embedded into the groove structures on the roadbed, and the first reinforcing longitudinal beam 401 and the second reinforcing longitudinal beam 402 jointly form a strip-shaped form consistent with the upright post 101, thereby playing a role in reinforcing the upright post 101.
The first reinforcing cross beam 301 and the second reinforcing cross beam 302 jointly form an elongated shape consistent with the corrugated guard beam 2, and the first reinforcing longitudinal beam 401 and the second reinforcing longitudinal beam 402 jointly form a strip shape consistent with the upright post 101, so that the corrugated guard beam 2 and the upright post 101 form a force unloading structure, impact force can be transmitted to the first reinforcing longitudinal beam 401 and the second reinforcing longitudinal beam 402 from the first reinforcing cross beam 301 and the second reinforcing cross beam 302 and then transmitted to a roadbed, and the instant opposite and inward tension generated by an impact object impacting the guard beam between the two upright posts 101 is effectively transmitted to the roadbed.
The upright 101 and the corrugated protection beam 2 are fixedly connected by bolts.
The first elastic member 5 and the second elastic member 6 are both in the same structure, the first beam section 303 and the first beam section 403 are respectively provided with a touch control 7 for controlling the first elastic member 5 and the second elastic member 6 to perform elastic potential energy storage or potential energy, the touch control 7 comprises a first limit hole 701 and a second limit hole 702 which are respectively arranged on the first beam section 303 and the first beam section 403, and a touch steel rope 703 of which one end is respectively connected with the end parts of the first elastic member 5 and the second elastic member 6 through the first limit hole 701 and the second limit hole 702, the other end part of the touch steel rope 703 is paved to an adjacent upright post 101 along the wave-shaped protection beam 2 towards the roadbed and passes through the first limit hole 701 and the second limit hole 702 on the first beam section 303 and the first beam section 403 to be connected with the end parts of the first elastic member 5 and the second elastic member 6, the tactile cord 703 breaks under the impact to allow the first and second elastic members 5 and 6 to release energy in the elastic potential for simultaneous stretch resistance.
When the touch steel rope 703 is not broken, the first elastic member 5 and the second elastic member 6 are both in the elastic potential energy storage state, and when the touch steel rope 703 is broken, the first elastic member 5 and the second elastic member 6 synchronously release the elastic potential energy, so that the wave-shaped protection beam 2 and the upright post 101 are synchronously reinforced and protected.
As shown in fig. 5, based on the structure of the above-mentioned corrugated girder guard rail, the present invention provides a reinforcing method, including the steps of:
step S1, assembling the upright posts, the waveform protection beam, the first reinforcing member and the second reinforcing member in an unreinforced form to form a waveform beam guardrail, and installing the waveform beam guardrail to a roadbed to be protected;
step S2, the touch control is used for monitoring the impact state and degree of the waveform guard beam, and controlling the first reinforcing member and the second reinforcing member to change from the unreinforced state to the reinforced state in a linkage manner, specifically:
if the impact is not generated or the impact degree is light, the touch steel rope is not broken, and only the wave-shaped protective beam and the upright post are utilized for basic protection;
if impact occurs and the impact degree is high, the touch steel rope is broken, the first elastic member and the second elastic member release energy through synchronous elastic potential energy, so that the first reinforcing cross beam and the second reinforcing cross beam are transversely connected along the transverse limiting channel to form a transverse strip-shaped form to perform transient reinforcing on the wave-shaped protective beam, and the first reinforcing longitudinal beam and the second reinforcing longitudinal beam are inserted into a groove structure of the roadbed along the longitudinal channel to form a longitudinal strip-shaped form to perform transient reinforcing on the upright post;
step S3, after the collision stops, repairing the deformed parts of the corrugated beam guardrail, enabling the first reinforcing member and the second reinforcing member to be in an unreinforced state, and continuously monitoring the collision state and degree by using a touch control;
the unreinforced state refers to a state that the first elastic member and the second elastic member are rigidly stretched by the touch steel rope, the first longitudinal beam section, the second longitudinal beam section and the third longitudinal beam section are connected in a laminated state in a sleeved mode under the tensile elastic potential energy storage effect of the second elastic member, and the first transverse beam section, the second transverse beam section and the third transverse beam section are connected in a laminated state in a sleeved mode under the tensile elastic potential energy storage effect of the first elastic member.
The first reinforcing member and the second reinforcing member are used for linking and opening the wave-shaped protective beam and the upright column at the moment when the wave-shaped protective beam is impacted so as to reinforce the resistance strength of the wave-shaped protective beam and the upright column and provide reinforced blocking protection for an impacted object, the first reinforcing member and the second reinforcing member can be used for structurally connecting adjacent upright columns, the instant tension generated by the impacted object impacting the protective beam between the two upright columns in the opposite direction and the inward direction is effectively transmitted to a roadbed, the protection effect is improved, meanwhile, the differential response can be carried out according to the impact strength, the protection is finished by only using the basic protective beam under the condition that the impact strength is smaller, and the first reinforcing member and the second reinforcing member are used for reinforcing and protecting under the condition that the impact strength is larger, so that the non-differential repair is avoided, and the repair cost is reduced.
The above embodiments are only exemplary embodiments of the present application, and are not intended to limit the present application, and the protection scope of the present application is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present application and such modifications and equivalents should also be considered to be within the scope of the present application.
Claims (10)
1. The utility model provides a wave form roof beam guardrail which characterized in that: including at least one vertical fixation stand array (1) on the road bed, stand array (1) includes two piece at least stands (101), be provided with wave form guard beam (2) between two adjacent stands (101) wave form guard beam (2) are provided with first reinforcement member (3) with the junction of stand (101) be provided with second reinforcement member (4) with the junction on ground stand (101), first reinforcement member (3) with second reinforcement member (4) are used for wave form guard beam (2) receive the striking instantaneous linkage open right wave form guard beam (2) and stand (101) carry out the transient reinforcement with the resistance intensity of reinforcing wave form guard beam (2) and stand (101) for the protection of blocking that the striking object provided the reinforcement.
2. A corrugated beam guardrail as claimed in claim 1, wherein: the first reinforcing member (3) comprises a first reinforcing cross beam (301) and a second reinforcing cross beam (302) which are respectively transversely arranged at the joint of two adjacent upright posts (101) and the corrugated protection beam (2), the first reinforcing cross beam (301) and the second reinforcing cross beam (302) respectively comprise a first cross beam section (303), a second cross beam section (304) and a third cross beam section (305) which are sequentially reduced in inner diameter width and sequentially connected through a strip-shaped first elastic member (5), two end parts of the first cross beam section (303), the second cross beam section (304) and the third cross beam section (305) are respectively an end part and two end parts, one end part of the first cross beam section (303) is fixedly connected with the upright posts (101), two end parts of the first cross beam section (303) are sleeved outside one end part of the second cross beam section (304), and two end parts of the second cross beam section (304) are sleeved outside one end part of the third cross beam section (305), two ends of the third beam section (305) and one end of the first beam section (303) are respectively connected with two ends of the first elastic member (5), the first beam section (303), the second beam section (304) and the third beam section (305) are connected in a laminated mode in a sleeved mode under the anti-stretching elastic potential energy storage effect of the first elastic member (5), and are connected in a dispersed mode under the anti-stretching elastic potential energy release effect of the first elastic member (5) to form a transverse strip mode consistent with the waveform protection beam (2).
3. A corrugated beam guardrail as claimed in claim 2, wherein: the second reinforcing member (4) comprises a first reinforcing longitudinal beam (401) and a second reinforcing longitudinal beam (402) which are longitudinally arranged at the joint of two adjacent upright columns (101) and the corrugated protective beam (2), the first reinforcing longitudinal beam (401) and the second reinforcing longitudinal beam (402) respectively comprise a first longitudinal beam section (403), a second longitudinal beam section (404) and a third longitudinal beam section (405) of which the inner diameter and width are sequentially reduced and which are sequentially connected through a strip-shaped second elastic member (6), two end parts of the first longitudinal beam section (403), the second longitudinal beam section (404) and the third longitudinal beam section (405) are respectively an end part and two end parts, one end part of the first longitudinal beam section (403) is fixedly connected with the upright columns (101), two end parts of the first longitudinal beam section (403) are sleeved outside one end part of the second longitudinal beam section (404), and two end parts of the second longitudinal beam section (404) are sleeved outside one end part of the third longitudinal beam section (405), two ends of the third longitudinal beam section (405) and one end of the first longitudinal beam section (403) are respectively connected with two ends of the second elastic member (6), the first longitudinal beam section (403), the second longitudinal beam section (404) and the third longitudinal beam section (405) are connected in a laminated mode in a sleeved mode under the anti-stretching elastic potential energy storage effect of the second elastic member (6), and are connected in a dispersed mode in a longitudinal strip mode consistent with the vertical column (101) under the anti-stretching elastic potential energy release effect of the second elastic member (6).
4. A corrugated beam guardrail as claimed in claim 3, wherein: the first elastic member (5) and the second elastic member (6) are of the same structure, a touch control (7) for linkage control of the first elastic member (5) and the second elastic member (6) to perform elastic potential energy storage or potential energy is arranged on the first cross beam section (303) and the first longitudinal beam section (403) respectively, the touch control (7) comprises a first limiting hole (701) and a second limiting hole (702) which are arranged on the first cross beam section (303) and the first longitudinal beam section (403) respectively, and a touch steel rope (703) with one end connected with the ends of the first elastic member (5) and the second elastic member (6) through the first limiting hole (701) and the second limiting hole (702) respectively, the other end of the touch steel rope (703) is laid towards a roadbed side surface along the wave-shaped protection beam (2) to an adjacent upright post (101) to pass through the first cross beam section (303) and the first longitudinal beam section (403) The position hole (701) and the second position limiting hole (702) are connected with the ends of the first elastic member (5) and the second elastic member (6) together, and the touch steel rope (703) is broken under the impact action so that the first elastic member (5) and the second elastic member (6) can synchronously release tensile elastic potential energy.
5. A waveform beam guardrail as claimed in claim 4, wherein: the outer diameter of the two ends of the third beam section (305) of the first reinforcing beam (301) is smaller than the inner diameter of the two ends of the third beam section (305) of the second reinforcing beam (302).
6. A waveform beam guardrail as claimed in claim 5, wherein: the inner peripheral part of the wave-shaped protective beam (2) is provided with a transverse limiting channel (8) which is used for limiting the two ends of a third beam section (305) of the first reinforcing beam (301) and the two ends of a third beam section (305) of the second reinforcing beam (302) to be connected in a nesting mode so that the first reinforcing beam (301) and the second reinforcing beam (302) are connected to form a transverse long strip-shaped form consistent with the wave-shaped protective beam (2), the transverse limiting channel (8) comprises a symmetrical stepped tubular structure which is formed by dispersedly connecting the first beam section (303), the second beam section (304) and the third beam section (305) and is matched with the layer-shaped form, and the symmetrical stepped tubular structure is in transverse-longitudinal-transverse two-way cross symmetry.
7. A waveform beam guardrail as claimed in claim 6, wherein: the two ends of a third longitudinal beam section (405) of the first reinforcing longitudinal beam (401) and the two ends of a third longitudinal beam section (405) of the second reinforcing longitudinal beam (402) are both in a pointed cone structure, and a groove structure consistent with the pointed cone structure is arranged at the joint of the upright column (101) and the ground.
8. A corrugated beam guardrail according to claim 7, characterized in that the inner periphery of the upright (101) is provided with longitudinal spacing channels (9) for defining the insertion of the two ends of the third beam section (305) of the first reinforcing longitudinal beam (401) and the third beam section (305) of the second reinforcing transverse beam (302) into the groove structure, the longitudinal spacing channels (9) comprising stepped tubular structures matching the layered form formed by the discrete connection of the first (403), second (404) and third (405) longitudinal beam sections.
9. A wave beam guard rail according to claim 8, characterized in that the uprights (101) and the wave beam (2) are fixedly connected by means of bolts.
10. A method of strengthening a corrugated beam guardrail according to any one of claims 1 to 9, comprising the steps of:
step S1, assembling the upright posts, the waveform protection beam, the first reinforcing member and the second reinforcing member in an unreinforced form to form a waveform beam guardrail, and installing the waveform beam guardrail to a roadbed to be protected;
step S2, the touch control is used for monitoring the impact state and degree of the waveform guard beam, and controlling the first reinforcing member and the second reinforcing member to change from the unreinforced state to the reinforced state in a linkage manner, specifically:
if the impact is not generated or the impact degree is light, the touch steel rope is not broken, and only the wave-shaped protective beam and the upright post are utilized for basic protection;
if impact occurs and the impact degree is high, the touch steel rope is broken, the first elastic member and the second elastic member release energy through synchronous elastic potential energy, so that the first reinforcing cross beam and the second reinforcing cross beam are transversely connected along the transverse limiting channel to form a transverse strip-shaped form to perform transient reinforcing on the wave-shaped protective beam, and the first reinforcing longitudinal beam and the second reinforcing longitudinal beam are inserted into a groove structure of the roadbed along the longitudinal channel to form a longitudinal strip-shaped form to perform transient reinforcing on the upright post;
step S3, after the collision stops, repairing the deformed parts of the corrugated beam guardrail, enabling the first reinforcing member and the second reinforcing member to be in an unreinforced state, and continuously monitoring the collision state and degree by using a touch control;
the unreinforced state refers to a state that the first elastic member and the second elastic member are rigidly stretched by the touch steel rope, the first longitudinal beam section, the second longitudinal beam section and the third longitudinal beam section are connected in a laminated state in a sleeved mode under the tensile elastic potential energy storage effect of the second elastic member, and the first transverse beam section, the second transverse beam section and the third transverse beam section are connected in a laminated state in a sleeved mode under the tensile elastic potential energy storage effect of the first elastic member.
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| CN202110423388.6A CN113512972B (en) | 2021-04-20 | 2021-04-20 | Waveform beam guardrail and reinforcing method |
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| CN202110423388.6A CN113512972B (en) | 2021-04-20 | 2021-04-20 | Waveform beam guardrail and reinforcing method |
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| CN113512972A true CN113512972A (en) | 2021-10-19 |
| CN113512972B CN113512972B (en) | 2022-05-24 |
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