CN113186854A - Concrete guardrail prefabricated thin plate structure and recycling construction method thereof - Google Patents
Concrete guardrail prefabricated thin plate structure and recycling construction method thereof Download PDFInfo
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- CN113186854A CN113186854A CN202110469443.5A CN202110469443A CN113186854A CN 113186854 A CN113186854 A CN 113186854A CN 202110469443 A CN202110469443 A CN 202110469443A CN 113186854 A CN113186854 A CN 113186854A
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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
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/10—Railings; Protectors against smoke or gases, e.g. of locomotives; Maintenance travellers; Fastening of pipes or cables to bridges
- E01D19/103—Parapets, railings ; Guard barriers or road-bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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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
- E01F15/006—Lane control by movable lane separating barriers, e.g. shiftable barriers, retractable kerbs ; Apparatus or barriers specially adapted therefor, e.g. wheeled barriers
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention discloses a recycling construction method of a precast thin plate structure of a concrete guardrail, which comprises light thin plate standard sections, an assembled reserved component and a supporting component, wherein the light thin plate standard sections are precast shell structures formed by pouring construction ribs and concrete, and the supporting component anchors a plurality of light thin plate standard sections into a whole in the longitudinal direction and the transverse direction through bolts; the prefabricated thin plate structure of the concrete guardrail can be reused among four forms of a temporary guardrail, a center belt opening guardrail, a center belt standard section guardrail and a bridge guardrail, the four guardrail forms all adopt the same light thin plate standard section, and the arrangement is carried out by changing a supporting member and an assembly type reserved member. The lightweight structural design of the concrete guardrail realizes the construction process of the prefabricated assembled concrete guardrail and reduces the resource waste; the standard section of the concrete shell realizes the requirements of factory batch production and reutilization, and the construction is simpler; the connection is reserved to general assembled, more convenient connection.
Description
Technical Field
The invention belongs to the field of traffic safety protection, and particularly relates to a concrete guardrail prefabricated thin plate structure and a recycling construction method thereof.
Background
With the rapid growth of economy in China and the vigorous development of road transportation industry, traffic volume is rapidly increased, particularly, the increase of large heavy-duty vehicles directly leads to the increase of the use frequency and load of road traffic facilities, people pay more and more attention to the safety of traffic travel, and a road guardrail plays a vital role as the last line of defense of traffic safety.
At present, concrete guardrails are common highway guardrail protection forms, have the advantage of high rigidity through years of application and practice, and have larger safety protection allowance, the concrete guardrail manufacturing can be divided into a prefabrication process and a cast-in-place process, the construction of the concrete guardrail is usually carried out in the cast-in-place mode at the present stage, the process is relatively mature, and the quality can be ensured, but the cast-in-place construction method is relatively complex, the construction period is long, the occupied space is large, the construction is inconvenient for the field construction of the 'keep-through' reconstruction and extension highway, and the later maintenance and repair also cause certain difficulty; the prefabricated process is produced, the segments are prefabricated in a factory, and the segments are assembled through the standard segments and the anchoring parts on site, so that the time for occupying the road surface on site can be saved, the construction period is greatly shortened, but in order to ensure the protection strength, the existing prefabricated guardrail structure is heavy, the simultaneous connection of the anchoring parts in site hoisting is very difficult, great danger exists, the quality of the prefabricated process is uneven, the linear control of site assembly is difficult to ensure, the application is single, the reusable guardrail form hardly relates, and a crushing mode is often adopted during dismantling, so that great resource waste is caused.
Based on the above, if the advantages of the concrete guardrail safety protection are combined, the concrete guardrail is subjected to lightweight structural design, and the construction method is optimized, so that the concrete guardrail is suitable for two working conditions of a bridge or a roadbed, namely a side guardrail of the bridge, or a middle guardrail of the roadbed, or a middle guardrail with an opening or a temporary guardrail, the connection mode and the connection members under each working condition can be different, but the concrete guardrail can be connected through the same assembly type member, the reutilization function of the concrete guardrail is realized, and the concrete guardrail can be applied to any position of a newly-built road or a reconstructed and expanded road for protection; meanwhile, in recent years, the development of new materials can be combined, the problem of insufficient strength of concrete is solved by using ultra-high performance concrete (UHPC), and the problem of corrosion on the surface of reinforced concrete is solved by using novel material ribs. In summary, the concrete guardrail prefabricated thin plate structure and the recycling construction method thereof are provided.
Disclosure of Invention
The invention aims to provide a precast thin plate structure of a concrete guardrail and a recycling construction method thereof, which are used for solving the problems of heavy structure, difficult field construction and recycling of the precast concrete guardrail and increasing the application range of the concrete guardrail.
In order to achieve the technical purpose, the technical scheme of the invention is realized as follows:
precast thin plate structure of concrete guardrail, its characterized in that: the device comprises a light sheet standard knot, an assembly type reserved component and a supporting component;
the light sheet standard knot is a prefabricated shell structure formed by pouring construction ribs and concrete, and comprises a front face, a back face, a top part and a bottom part, wherein the top part of the light sheet standard knot is a block protruding out of the back face, an inverted L-shaped plate-shaped structure with an included angle formed between the top part and the back face is formed, the bottom part of the light sheet standard knot is horizontally arranged on a foundation and is not connected with the foundation, the assembly type reserved component is embedded in the light sheet standard knot and comprises a top embedded connecting component, a bottom embedded connecting component and a longitudinal embedded connecting component, the top embedded connecting component is embedded in a groove in the top part, the bottom embedded connecting component is embedded in the junction position of the back face and the bottom part, the longitudinal embedded connecting component comprises a top longitudinal embedded connecting component and a bottom longitudinal embedded connecting component, the top longitudinal embedded connecting components are embedded at two ends of the light sheet standard knot and are arranged at the top part, the vertical pre-buried connecting element in bottom is pre-buried the both ends of light-duty sheet metal standard festival and set up in the bottom position, the assembled part of reserving the component and exposing the concrete part and being equipped with the bolt hole, also set up the bolt hole of matching on the backup element, the backup element is reserved the component with the assembled and is passed through penetrating bolted connection after aligning the bolt hole, the backup element includes top bracing member, bottom bracing member, back bracing member, the backup element passes through the bolt anchor with a plurality of light-duty sheet metal standard festival and is whole.
Furthermore, the thickness of the section of the standard section of the light sheet is generally 5 cm-20 cm, the longitudinal length of the standard section of the light sheet is generally 2 m-4 m, the slope form of the front surface and the back surface of the standard section of the light sheet is a single slope, an F-shaped slope, a reinforced slope or a straight wall surface, the standard section of the light sheet is manufactured by pouring common portland cement or ultra-high performance concrete (UHPC) supporting templates, a construction rib is arranged inside the standard section of the light sheet, and the construction rib of the standard section of the light sheet is a steel bar, a glass fiber rib, a basalt rib, a carbon fiber rib or a high polymer compound rib.
Further, the bottom support member is of a profile steel structure or a concrete structure, the top support member and the back support member are of profile steel structures, and the top embedded connection member, the bottom embedded connection member and the longitudinal embedded connection member are flat plates, or angle steels, or channel steels, or steel pipes.
Further, light-duty sheet metal standard festival sets up to interim guardrail earlier, and the form of recycling includes well minute area opening guardrail, well minute area standard section guardrail and bridge railing, and above-mentioned four kinds of guardrail forms all adopt the same light-duty sheet metal standard festival, reserve the component mode through transform supporting member and assembled and set up, and concrete construction steps are as follows:
prefabricating a light sheet standard section through construction ribs and concrete in a factory, and simultaneously processing a supporting member and an assembly type reserved member, wherein the assembly type reserved member comprises a top embedded connecting member, a bottom embedded connecting member and a longitudinal embedded connecting member, the longitudinal embedded connecting member comprises a top longitudinal embedded connecting member and a bottom longitudinal embedded connecting member, the supporting member comprises a top supporting member, a bottom supporting member and a back supporting member, the assembly type reserved member is embedded in the light sheet standard section, and the light sheet standard section is transported to a construction site after the processing is finished;
firstly, when the temporary guardrail is applied, the light sheet standard knot is arranged in a double-row mode with the back surface opposite to the back surface, the tops of the light sheet standard knot arranged in the double-row mode are attached to each other, the bottom of the light sheet standard knot is horizontally arranged on the basis, the top transverse direction of the light sheet standard knot corresponding to the double-row mode is connected with a top pre-embedded connecting member through a top supporting member, the bottom transverse direction of the light sheet standard knot corresponding to the double-row mode is connected with a bottom pre-embedded connecting member through a bottom supporting member, the top longitudinal direction of each section of the light sheet standard knot is connected with a top longitudinal pre-embedded connecting member through a top supporting member, the bottom longitudinal direction of the light sheet standard knot is connected with a bottom longitudinal pre-embedded connecting member through a bottom supporting member, and all the members are connected through bolts;
thirdly, when the components are reused as the middle belt opening guardrail components, all connecting bolts of the on-site temporary guardrail are removed, and the standard sections of the light sheet are placed at the middle belt opening positions for standby;
processing a top supporting member and a bottom supporting member with plugging upright post holes and plugging upright posts matched with the plugging upright post holes in a factory;
fifthly, when the split type open guardrail is reused, the preformed holes are arranged at intervals in the foundation of the split position of the split, the light sheet standard knot is arranged in a double-row mode from the back side to the back side, the bottom of the light sheet standard knot is horizontally arranged on the foundation, the top transverse direction of the light sheet standard knot corresponding to the double rows is connected with the top embedded connecting component through the top supporting component, the bottom transverse direction of the light sheet standard knot corresponding to the double rows is connected with the bottom embedded connecting component through the bottom supporting component, the top longitudinal direction of each section of the light sheet standard knot is connected with the top longitudinal embedded connecting component through the top supporting component, the bottom longitudinal direction of the light sheet standard knot is connected with the bottom longitudinal embedded connecting component through the bottom supporting component, and the plugging upright post holes of the top supporting component and the bottom supporting component are matched with the preformed holes arranged at intervals in the foundation, the top supporting member and the bottom supporting member are inserted into the plugging upright post holes and the reserved holes through the plugging upright posts to form anchoring connection with the foundation, and the rest members are connected through bolts;
when the component is reused as a middle sub-standard section guardrail component, all connecting bolts of the on-site temporary guardrail are removed, and the light sheet standard section is placed at the middle sub-standard section for standby;
when the middle-branch belt standard section guardrail is used, firstly, embedding grooves are formed in the foundation of the middle-branch belt standard section, the light sheet standard sections are arranged in the embedding grooves in a double-row mode from the back to the back, the top transverse directions of the light sheet standard sections corresponding to the double rows are connected with top embedded connecting members through top supporting members, the bottom transverse directions of the light sheet standard sections corresponding to the double rows are connected with bottom embedded connecting members through bottom supporting members, the top longitudinal direction of each section of the light sheet standard section is connected with top longitudinal embedded connecting members through top supporting members, the bottom longitudinal direction of each section of the light sheet standard section is connected with bottom longitudinal embedded connecting members through bottom supporting members, and the connection among other members is realized through bolts;
when the temporary guardrail is reused as a bridge guardrail component, dismantling all connecting bolts of the on-site temporary guardrail, and placing the standard sections of the light sheets on the bridge for later use;
when the construction method is a bridge guardrail form, firstly arranging embedded bolts on a foundation, wherein the light sheet standard knot is arranged in a single row, the bottom of the light sheet standard knot is horizontally arranged on the foundation, each section of the light sheet standard knot is connected with a top longitudinal embedded connecting component through the top of a back supporting component in the longitudinal direction and is connected with a bottom longitudinal embedded connecting component through the bottom of the back supporting component to form an anchor, each section of the back of the light sheet standard knot is connected with the top embedded connecting component and the bottom embedded connecting component through the back supporting component to form the anchor, the back supporting component is attached to the back of the light sheet standard knot, the position of the back supporting component is matched with the position of the embedded bolts arranged on the foundation, the bottom surface of the back supporting component is fixed with the foundation through the embedded bolts, and the connection among other components is realized through the bolts;
the conversion between arbitrary two kinds of guardrail forms can be realized through above-mentioned 1 ~ 9 steps to the R, if well minute area opening guardrail, well minute area standard section guardrail and bridge guardrail recycle wantonly for interim guardrail, dismantle light-duty sheet metal standard festival for subsequent use, through transform supporting member and assembled reservation component mode set up can.
Furthermore, the embedded bolts are anchored in the foundation in an embedded mode or a bar-planting bolt mode.
Furthermore, a flange plate is welded on the bottom surface of the back supporting component, the flange plate is provided with bolt holes, and the embedded bolts penetrate through the bolt holes of the flange plate to be connected with the bridge in an anchoring mode.
Further, the foundation includes a roadbed or a bridge slab.
After the technical scheme is adopted, the invention has the following beneficial effects:
(1) the lightweight structural design of the concrete guardrail realizes the construction process of the prefabricated assembled concrete guardrail and reduces the resource waste;
(2) the standard section of the concrete guardrail shell is prefabricated, so that the requirements of factory batch production and reutilization are met, and the construction is simpler;
(3) the universal assembly type reserved connection is convenient to connect, and only the assembly component is replaced according to different arrangement positions;
(4) the load of the bridge is reduced, and the safety margin of the load of the main structure of the bridge is ensured;
(5) the lightweight concrete guardrail adopting the new material meets the policy of safe traffic and green traffic.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the embodiments are briefly described as follows:
FIG. 1 is a cross-sectional view of an example of a light gauge section of the present invention;
FIG. 2 is an elevational view of an exemplary light gauge section of the present invention;
FIG. 3 is an example of a top view of a light gauge section of the present invention;
FIG. 4 is an example of a perspective view of a temporary barrier top support member of the present invention;
FIG. 5 is an example of a perspective view of a temporary barrier bottom support member of the present invention;
FIG. 6 is an example of a cross-sectional view of a temporary barrier according to the present invention;
FIG. 7 is an elevational view of an example of a temporary barrier of the present invention;
FIG. 8 is an example of a top view of the temporary guard rail of the present invention;
FIG. 9 is an example of a perspective view of a reusable split center opening guardrail top support member according to the present invention;
FIG. 10 is an example of a perspective view of a reusable split center opening barrier bottom support member of the present invention;
FIG. 11 is a perspective view of an example of a reusable center-split guardrail plug post according to the present invention;
FIG. 12 is a cross-sectional view of an example of a reusable center split open barrier of the present invention;
FIG. 13 is an illustration of a front view of the reusable center split open barrier of the present invention;
FIG. 14 is an example of a top view of the reusable center split open barrier of the present invention;
FIG. 15 is an example of a perspective view of a reusable mid-section guardrail top support member of the present invention;
FIG. 16 is a cross-sectional view of an example of a standard section guardrail of the present invention being reused as a center belt;
FIG. 17 is an elevational view of an example of a reusable mid-section rail of the present invention;
FIG. 18 is an exemplary top view of the reusable mid-banded modular segment barrier of the present invention;
FIG. 19 is an example of a perspective view of a reusable back support member for a bridge rail according to the present invention;
FIG. 20 is a cross-sectional view of an example of the reusable bridge railing of the present invention;
FIG. 21 is an elevational view of an example of the reusable bridge railing of the present invention;
FIG. 22 is an example of a top view of the reusable bridge railing of the present invention;
fig. 23 is an example of a recycling flow chart of the light gauge section of the present invention.
Reference numerals
1, standard section of light sheet; 2. a front face; 3. a back side; 4. a top portion; 5. embedding a connecting component at the top; 6. connecting components are embedded at the bottom; 7. longitudinally embedding a connecting component at the top; 8. a top support member; 9. a bottom support member; 10. a back support member; 11. a foundation; 12. a bottom; 13. embedding bolts in advance; 14. plugging and pulling the upright post hole; 15. plugging and unplugging the upright column; 16. reserving a hole; 17. embedding a fixed groove; 18. a groove; 19. and longitudinally embedding a connecting member at the bottom.
Detailed Description
The present invention will be described in further detail with reference to examples and embodiments. It should not be understood that the scope of the above-described subject matter of the present invention is limited to the following examples, and all techniques realized based on the disclosure of the present invention are within the scope of the present invention.
As shown in fig. 1-3, is an example of a light gauge section of the present invention. The light sheet standard knot 1 is a prefabricated shell structure formed by pouring construction ribs and concrete, the light sheet standard knot 1 comprises a front face 2, a back face 3, a top portion 4 and a bottom portion 12, the top portion 4 of the light sheet standard knot 1 is a block body protruding out of the back face 3, an inverted L-shaped plate-shaped structure with an included angle formed by the top portion 4 and the back face 3 is formed, the bottom portion 12 of the light sheet standard knot 1 is horizontally arranged on a foundation 11 and is not connected with the foundation 11, the assembly type reserved component is pre-embedded in the light sheet standard knot 1 and comprises a top pre-embedded connecting component 5, a bottom pre-embedded connecting component 6 and a longitudinal pre-embedded connecting component, the top pre-embedded connecting component 5 is pre-embedded in a groove 18 of the top portion 4, the bottom pre-embedded connecting component 6 is pre-embedded at the junction position of the back face 3 and the bottom portion 12, the longitudinal pre-embedded connecting component comprises a top longitudinal pre-embedded connecting component 7 and a bottom longitudinal pre-embedded connecting component 19, the top longitudinal embedded connecting members 7 are embedded at two ends of the light sheet standard section 1 and are arranged at the top 4 positions, the bottom longitudinal embedded connecting members 19 are embedded at two ends of the light sheet standard section 1 and are arranged at the bottom 12 positions, and bolt holes are formed in the concrete exposed parts of the assembly type reserved members.
The thickness of the cross section of the light sheet standard knot 1 is 10cm, the longitudinal length of the light sheet standard knot 1 is 4m, the slope surface form of the front surface 2 and the back surface 3 of the light sheet standard knot 1 is an F-shaped slope surface, the light sheet standard knot 1 is made by pouring an ultrahigh-performance concrete (UHPC) formwork, a construction rib is arranged inside the light sheet standard knot 1, and the construction rib of the light sheet standard knot 1 is a glass fiber rib.
The top embedded connecting component 5 and the longitudinal embedded connecting component are flat plates, and the bottom embedded connecting component 6 is an angle steel.
Fig. 4 is a perspective view showing an example of a top support member of the temporary fence according to the present invention. The top support member 8 is a flat plate with bolt holes.
Fig. 5 is a perspective view showing an example of a bottom support member of the temporary guard rail according to the present invention. The bottom support member 9 is a rectangular steel pipe, and through bolt holes are formed in the side face of the steel pipe.
As shown in fig. 6 to 8, which are examples of the temporary guard rail of the present invention. Light-duty sheet metal standard festival 1 is 3 double settings to the back 3 for the back, double setting light-duty sheet metal standard festival 1's top 4 is laminated mutually, light-duty sheet metal standard festival 1's bottom 12 horizontal pendulum is on basis 11, double correspondence light-duty sheet metal standard festival 1's top 4 transverse direction passes through top supporting component 8 and connects the pre-buried connecting elements in top 5, double correspondence light-duty sheet metal standard festival 1's bottom 12 transverse direction passes through bottom supporting component 9 and connects the pre-buried connecting elements in bottom 6, light-duty sheet metal standard festival 1 is every 4 longitudinal directions in top through the vertical pre-buried connecting elements in top supporting component 8 connection top 7, light-duty sheet metal standard festival 1's bottom 12 longitudinal direction passes through bottom supporting component 9 and connects the vertical pre-buried connecting elements in bottom 19, and the connection between all components all passes through the bolt.
An example of a perspective view of a reusable split center guardrail top support member of the present invention is shown in FIG. 9. The top supporting member 8 is a rectangular steel pipe, the side surfaces of two ends of the steel pipe are provided with long holes, the two ends of the steel pipe are provided with bolt holes with through upper and lower surfaces, and the center of the steel pipe is provided with a plug upright post hole 14.
An example of a perspective view of a reusable split center guardrail bottom support member of the present invention is shown in fig. 10. The bottom supporting member 9 is a rectangular steel pipe, through bolt holes are formed in the side faces of two ends of the steel pipe, and a plug upright hole 14 is formed in the center of the steel pipe.
Fig. 11 is a perspective view showing an example of the inserting and pulling upright post of the guardrail with the opening for middle division for reuse according to the present invention. The cross section of the plugging upright post 15 is circular, one part of the plugging upright post is inserted into the foundation 11, and the other part of the plugging upright post penetrates through the plugging upright post holes 14 on the top supporting member 8 and the bottom supporting member 9.
Examples of the reuse of the present invention as a center-split open barrier are shown in fig. 12-14. The method is characterized in that preformed holes 16 are arranged in a foundation 11 with an opening position at a central zone at intervals, a light sheet standard knot 1 is arranged on the back 3 in a double-row mode, the bottom 12 of the light sheet standard knot 1 is horizontally arranged on the foundation 11, the double rows correspond to the top 4 transverse direction of the light sheet standard knot 1 through a top supporting member 8 to be connected with a top embedded connecting member 5, the double rows correspond to the bottom 12 transverse direction of the light sheet standard knot 1 through a bottom supporting member 9 to be connected with a bottom embedded connecting member 6, the top 4 longitudinal direction of each section of the light sheet standard knot 1 is connected with a top longitudinal embedded connecting member 7 through a top supporting member 8, the bottom 12 longitudinal direction of the light sheet standard knot 1 is connected with a bottom longitudinal embedded connecting member 19 through a bottom supporting member 9, the positions of plugging upright post holes 14 of the top supporting member 8 and the bottom supporting member 9 are matched with the positions of the preformed holes 16 arranged in the foundation 11 at intervals, the top supporting component 8 and the bottom supporting component 9 are inserted into the plugging upright post holes 14 and the reserved holes 16 through the plugging upright posts 15 to form anchoring connection with the foundation 11, and the connection between the other components is realized through bolts.
An example of a perspective view of a reusable mid-section guardrail top support member of the present invention is shown in FIG. 15. The top supporting member 8 is a rectangular steel pipe, the side surfaces of two ends of the steel pipe are provided with long holes, and the two ends of the steel pipe are provided with bolt holes with through upper and lower surfaces.
The bottom support member 9 is structurally identical to the temporary barrier application.
As shown in fig. 16-18, an example of the present invention is reused as a mid-banded standard section barrier. Firstly, an embedded groove 17 is formed in a foundation 11 of a middle-zone standard section position, a light sheet standard section 1 is arranged in the embedded groove 17 in a double-row mode for a back 3 to the back 3, the double-row mode corresponds to a top 4 transverse direction of the light sheet standard section 1 is connected with a top embedded connecting component 5 through a top supporting component 8, the double-row mode corresponds to a bottom 12 transverse direction of the light sheet standard section 1 is connected with a bottom embedded connecting component 6 through a bottom supporting component 9, a top 4 longitudinal direction of each section of the top of the light sheet standard section 1 is connected with a top longitudinal embedded connecting component 7 through the top supporting component 8, a bottom 12 longitudinal direction of the light sheet standard section 1 is connected with a bottom longitudinal embedded connecting component 19 through the bottom supporting component 9, and connection among other components is realized through bolts.
As shown in fig. 19, a perspective view of the invention is reused as a back support member for a bridge railing. The back support component 10 is formed by welding and assembling steel plates, the shape of the cross section of the back surface 3 of the back support component 10 and the back surface 3 of the light sheet standard knot 1 are matched, a flange plate is welded on the bottom surface of the back support component 10, the flange plate is provided with bolt holes, and embedded bolts 13 penetrate through the bolt holes of the flange plate to be connected with a bridge in an anchoring mode.
As shown in fig. 20-22, the present invention is reused as an example of a bridge railing. Firstly, pre-embedded bolts 13 are arranged on a foundation 11, the light sheet standard knot 1 is arranged in a single row, the bottom 12 of the light sheet standard knot 1 is horizontally arranged on a foundation 11, the longitudinal direction of each knot of the light sheet standard knot 1 is connected with the top longitudinal embedded connecting component 7 through the top of the back supporting component 10 and is connected with the bottom longitudinal embedded connecting component 19 through the bottom of the back supporting component 10 to form an anchorage, the back of each section of the light sheet standard knot 1 is connected with the top embedded connecting component 5 and the bottom embedded connecting component 6 through the back supporting component 10 to form anchoring, the back supporting component 10 is attached to the back 3 of the light sheet standard knot 1, the position of the back support member 10 matches the position of the embedded bolts 13 provided on the foundation 11, the bottom surface of the back support component 10 and the foundation 11 are fixed through the embedded bolts 13, and the other components are connected through bolts.
The embedded bolts 13 are anchored in the foundation 11 in an embedded mode or a bar-planting bolt mode.
The foundation 11 comprises a roadbed or a bridge slab.
Fig. 23 shows an example of a flowchart for recycling the light gauge section of the present invention. Light-duty sheet metal standard festival 1 sets up to interim guardrail earlier, and the form of recycling includes well minute area opening guardrail, well minute area standard section guardrail and bridge guardrail, and above-mentioned four kinds of guardrail forms all adopt the same light-duty sheet metal standard festival 1, reserve the component mode through transform supporting member and assembled and set up, and concrete construction steps are as follows:
prefabricating a light sheet standard section 1 through constructional ribs and concrete in a factory, and simultaneously processing a supporting member and an assembly type reserved member, wherein the assembly type reserved member comprises a top embedded connecting member 5, a bottom embedded connecting member 6 and a longitudinal embedded connecting member, the longitudinal embedded connecting member comprises a top longitudinal embedded connecting member 7 and a bottom longitudinal embedded connecting member 19, the supporting member comprises a top supporting member 8, a bottom supporting member 9 and a back supporting member 10, the assembly type reserved member is embedded in the light sheet standard section 1, and the light sheet standard section is transported to a construction site after the processing is finished;
secondly, when the temporary guardrail is firstly applied, the light sheet standard knot 1 is arranged from the back 3 to the back 3 in double rows, the tops 4 of the light sheet standard knot 1 in double rows are jointed, the bottom 12 of the light sheet standard knot 1 is horizontally arranged on a foundation 11, the top 4 of the light sheet standard knot 1 corresponding to two rows is transversely connected with a top embedded connecting member 5 through a top supporting member 8, the bottom 12 of the light sheet standard knot 1 corresponding to two rows is transversely connected with a bottom embedded connecting member 6 through a bottom supporting member 9, the top 4 of each section of the light sheet standard section 1 is connected with a top longitudinal embedded connecting member 7 through a top supporting member 8 in the longitudinal direction, the bottom 12 of the light sheet standard knot 1 is connected with a bottom longitudinal embedded connecting component 19 through a bottom supporting component 9 in the longitudinal direction, and all the components are connected through bolts;
thirdly, when the components are reused as the middle belt opening guardrail components, all connecting bolts of the on-site temporary guardrail are removed, and the light sheet standard knot 1 is placed at the middle belt opening position for standby;
processing a top supporting member 8 and a bottom supporting member 9 with plugging upright post holes 14 and plugging upright posts 15 matched with the plugging upright post holes 14 in a factory;
fifthly, when the split type open guardrail is reused, the reserved holes 16 are formed in the foundation 11 at the split position at intervals, the light sheet standard knot 1 is arranged in a mode that the back face 3 is arranged in a double row mode for the back face 3, the bottom 12 of the light sheet standard knot 1 is horizontally arranged on the foundation 11, the top 4 of the light sheet standard knot 1 corresponding to the double row mode is connected with the top embedded connecting component 5 through the top supporting component 8 in the transverse direction, the bottom 12 of the light sheet standard knot 1 corresponding to the double row mode is connected with the bottom embedded connecting component 6 through the bottom supporting component 9 in the transverse direction, the top 4 of each section of the light sheet standard knot 1 is connected with the top longitudinal embedded connecting component 7 through the top supporting component 8 in the longitudinal direction, the bottom 12 of the light sheet standard knot 1 is connected with the bottom longitudinal embedded connecting component 19 through the bottom supporting component 9 in the longitudinal direction, and the positions of the plugging upright post holes 14 of the top supporting component 8 and the bottom supporting component 9 The positions of the prepared holes 16 are matched, the top supporting component 8 and the bottom supporting component 9 are inserted into the inserting and extracting upright post holes 14 and the prepared holes 16 through the inserting and extracting upright posts 15 to form anchoring connection with the foundation 11, and the connection among the other components is realized through bolts;
when the component is reused as a middle sub-belt standard section guardrail component, all connecting bolts of the on-site temporary guardrail are removed, and the light sheet standard section 1 is placed at the middle sub-belt standard section for standby;
when the middle-sub belt standard section guardrail is used, firstly, embedding grooves 17 are formed in a foundation 11 at the position of the middle-sub belt standard section, the light sheet standard section 1 is formed in a manner that the back surface 3 is arranged in the embedding grooves 17 in a double row mode relative to the back surface 3, the top 4 of the light sheet standard section 1 corresponding to the double row mode is connected with a top embedded connecting component 5 through a top supporting component 8 in the transverse direction, the bottom 12 of the light sheet standard section 1 corresponding to the double row mode is connected with a bottom embedded connecting component 6 through a bottom supporting component 9 in the transverse direction, the top 4 of each section of the light sheet standard section 1 is connected with a top longitudinal embedded connecting component 7 through a top supporting component 8 in the longitudinal direction, the bottom 12 of the light sheet standard section 1 is connected with a bottom longitudinal embedded connecting component 19 through a bottom supporting component 9 in the longitudinal direction, and the connection among other components is realized through bolts;
when the temporary guardrail is reused as a bridge guardrail component, dismantling all connecting bolts of the on-site temporary guardrail, and placing the light sheet standard knot 1 on a bridge for later use;
ninthly, when the form of a bridge guardrail is recycled, firstly, embedded bolts 13 are arranged on a foundation 11, the light sheet standard knot 1 is arranged in a single row, the bottom 12 of the light sheet standard knot 1 is horizontally arranged on the foundation 11, each section of the light sheet standard knot 1 is connected with a top longitudinal embedded connecting component 7 and a bottom longitudinal embedded connecting component 19 through the top of a back supporting component 10 in the longitudinal direction and is connected with the bottom of the back supporting component 10 to form an anchor, each section of the back of the light sheet standard knot 1 is connected with a top embedded connecting component 5 and a bottom embedded connecting component 6 through the back supporting component 10 to form an anchor, the back supporting component 10 is attached to the back 3 of the light sheet standard knot 1, the position of the back supporting component 10 is matched with the position of the embedded bolts 13 arranged on the foundation 11, and the bottom surface of the back supporting component 10 is fixed with the foundation 11 through the embedded bolts 13, the connection between other components is realized through bolts;
the conversion between arbitrary two kinds of guardrail forms can be realized through above-mentioned 1 ~ 9 steps to the R, if one of median zone opening guardrail, median zone standard section guardrail and bridge guardrail arbitrary form is recycled when interim guardrail, dismantle light-duty sheet metal standard festival 1 for subsequent use, through transform supporting member and assembled reservation component mode set up can.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. Precast thin plate structure of concrete guardrail, its characterized in that: the device comprises a light sheet standard knot (1), an assembly type reserved component and a supporting component;
the light sheet standard knot (1) is a prefabricated shell structure formed by pouring construction ribs and concrete, the light sheet standard knot (1) comprises a front surface (2), a back surface (3), a top portion (4) and a bottom portion (12), the top portion (4) of the light sheet standard knot (1) is a block protruding out of the back surface (3), the top portion (4) and the back surface (3) form an inverted L-shaped plate-shaped structure with an included angle, the bottom portion (12) of the light sheet standard knot (1) is horizontally arranged on a foundation (11) and is not connected with the foundation, the assembly type reserved component is pre-embedded inside the light sheet standard knot (1), the assembly type reserved component comprises a top pre-embedded connecting component (5), a bottom pre-embedded connecting component (6) and a longitudinal pre-embedded connecting component, the top pre-embedded connecting component (5) is pre-embedded in a groove (18) of the top portion (4), the bottom pre-buried connecting member (6) is pre-buried at the junction position of the back surface (3) and the bottom (12), the longitudinal pre-buried connecting member comprises a top longitudinal pre-buried connecting member (7) and a bottom longitudinal pre-buried connecting member (19), the top longitudinal pre-buried connecting member (7) is pre-buried at the two ends of the light sheet standard joint (1) and is arranged at the top (4), the bottom longitudinal pre-buried connecting member (19) is pre-buried at the two ends of the light sheet standard joint (1) and is arranged at the bottom (12), a bolt hole is formed in the concrete exposed part of the assembly type reserved member, a matched bolt hole is also formed in the supporting member, the supporting member and the assembly type reserved member are connected through penetrating bolts after aligning the bolt holes, the supporting member comprises a top supporting member (8), a bottom supporting member (9) and a back supporting member (10), the supporting component anchors a plurality of light sheet standard knots (1) into a whole through bolts.
2. The concrete guardrail precast slab structure of claim 1, wherein: the thickness of the section of the light sheet standard knot (1) is 5-20 cm generally, the longitudinal length of the light sheet standard knot (1) is 2-4 m generally, the slope form of the front surface (2) and the back surface (3) of the light sheet standard knot (1) is a single slope, an F-shaped slope, an enhanced slope or a straight wall surface, the light sheet standard knot (1) is made of ordinary portland cement or ultra-high performance concrete (UHPC) formwork, a construction rib is arranged inside the light sheet standard knot, and the construction rib of the light sheet standard knot (1) is a steel bar, a glass fiber rib, a basalt rib, a carbon fiber rib or a high molecular compound rib.
3. The concrete guardrail precast slab structure of claim 1, wherein: the bottom supporting member (9) is of a profile steel structure or a concrete structure, the top supporting member (8) and the back supporting member (10) are of profile steel structures, and the top embedded connecting member (5), the bottom embedded connecting member (6) and the longitudinal embedded connecting member are flat plates, or angle steels, or channel steels, or steel pipes.
4. The recycling construction method of the precast thin plate structure of the concrete guardrail according to any one of claims 1 to 3, characterized in that: light-duty sheet metal standard festival (1) sets up to interim guardrail earlier, and the form of recycling includes well minute area opening guardrail, well minute area standard section guardrail and bridge guardrail, and above-mentioned four kinds of guardrail forms all adopt same light-duty sheet metal standard festival (1), reserve the component mode through transform supporting member and assembled and set up, and concrete construction steps are as follows:
prefabricating a light sheet standard section (1) through constructional bars and concrete in a factory, and simultaneously processing a supporting member and an assembly type reserved member, wherein the assembly type reserved member comprises a top embedded connecting member (5), a bottom embedded connecting member (6) and a longitudinal embedded connecting member, the longitudinal embedded connecting member comprises a top longitudinal embedded connecting member (7) and a bottom longitudinal embedded connecting member (19), the supporting member comprises a top supporting member (8), a bottom supporting member (9) and a back supporting member (10), the assembly type reserved member is embedded in the light sheet standard section (1), and the light sheet standard section is transported to a construction site after the light sheet standard section is processed;
firstly, when using as interim guardrail form, light gauge sheet standard festival (1) is back (3) and is set up back (3) double, and double setting top (4) of light gauge sheet standard festival (1) are laminated mutually, bottom (12) horizontal pendulum of light gauge sheet standard festival (1) is on basis (11), and double corresponds top (4) transverse direction of light gauge sheet standard festival (1) passes through top supporting member (8) and connects pre-buried connecting element in top (5), and double corresponds bottom (12) transverse direction of light gauge sheet standard festival (1) passes through bottom supporting member (9) and connects pre-buried connecting element in bottom (6), light gauge sheet standard festival (1) every section top (4) longitudinal direction passes through top supporting member (8) and connects the vertical pre-buried connecting element in top (7), bottom (12) longitudinal direction of light gauge sheet standard festival (1) passes through bottom supporting member (9) and connects the bottom pre-buried connecting element (6) Longitudinally pre-embedded connecting components (19), wherein all the components are connected through bolts;
thirdly, when the components are reused as the middle belt opening guardrail components, all connecting bolts of the on-site temporary guardrail are removed, and the light sheet standard knot (1) is placed at the middle belt opening position for standby;
processing a top supporting member (8) and a bottom supporting member (9) with plugging upright post holes (14) and plugging upright posts (15) matched with the plugging upright post holes (14) in a factory;
when the middle belt opening guardrail is reused, the reserved holes (16) are formed in the foundation (11) at the middle belt opening position at intervals, the light sheet standard knot (1) is arranged in a double-row mode from the back (3) to the back (3), the bottom (12) of the light sheet standard knot (1) is horizontally arranged on the foundation (11), the light sheet standard knot (1) in the double-row mode corresponds to the top (4) in the transverse direction of the light sheet standard knot (1) and is connected with the top embedded connecting component (5) through the top supporting component (8), the light sheet standard knot (1) in the double-row mode corresponds to the bottom (12) in the transverse direction of the light sheet standard knot (1) and is connected with the bottom embedded connecting component (6) through the bottom supporting component (9), the top longitudinal embedded connecting component (7) is connected with the top supporting component (8) in the longitudinal direction of each top (4) of the light sheet standard knot (1), and the bottom (12) of the light sheet standard knot (1) in the longitudinal direction is connected with the bottom supporting component (9) The connecting component (19) is longitudinally embedded at the bottom, the positions of plug upright post holes (14) of the top supporting component (8) and the bottom supporting component (9) are matched with the positions of preformed holes (16) which are arranged in the foundation (11) at intervals, the top supporting component (8) and the bottom supporting component (9) are inserted into the plug upright post holes (14) and the preformed holes (16) through plug upright posts (15) to form anchoring connection with the foundation (11), and the rest components are connected through bolts;
when the component is reused as a middle sub-belt standard section guardrail component, all connecting bolts of the on-site temporary guardrail are removed, and the light sheet standard section (1) is placed at the middle sub-belt standard section for standby;
when the middle-zone standard section guardrail is reused, firstly, an embedded groove (17) is arranged in a foundation (11) at the position of the middle-zone standard section, the light sheet standard section (1) is arranged in the embedded groove (17) in a double-row mode from the back (3) to the back (3), the top (4) of the light sheet standard section (1) corresponding to the double-row mode is transversely connected with a top embedded connecting component (5) through a top supporting component (8), the bottom (12) of the light sheet standard section (1) corresponding to the double-row mode is transversely connected with a bottom embedded connecting component (6) through a bottom supporting component (9), the longitudinal direction of the top (4) of each section of the light sheet standard section (1) is connected with a top longitudinal embedded connecting component (7) through a top supporting component (8), and the longitudinal direction of the bottom (12) of the light sheet standard section (1) is connected with a bottom longitudinal embedded connecting component (19) through a bottom supporting component (9), the connection between other components is realized through bolts;
when the temporary guardrail is reused as a bridge guardrail component, all connecting bolts of the on-site temporary guardrail are dismantled, and the light sheet standard knot (1) is placed on a bridge for later use;
ninthly, when the novel light-weight thin plate standard knot is in a bridge guardrail form, firstly, embedded bolts (13) are arranged on a foundation (11), the light-weight thin plate standard knot (1) is arranged in a single row, the bottom (12) of the light-weight thin plate standard knot (1) is horizontally arranged on the foundation (11), each section of the light-weight thin plate standard knot (1) is connected with a top longitudinal embedded connecting component (7) through the top of a back supporting component (10) and is connected with a bottom longitudinal embedded connecting component (19) through the bottom of the back supporting component (10) to form an anchor, each section of the back of the light-weight thin plate standard knot (1) is connected with a top embedded connecting component (5) and a bottom embedded connecting component (6) through the back supporting component (10) to form an anchor, the back supporting component (10) is attached to the back (3) of the light-weight thin plate standard knot (1), and the position of the back supporting component (10) is matched with the position of the embedded bolts (13) arranged on the foundation (11), the bottom surface of the back supporting component (10) is fixed with the foundation (11) through the embedded bolt (13), and the other components are connected through bolts;
the conversion between arbitrary two kinds of guardrail forms can be realized through above-mentioned 1 ~ 9 steps to the R, if well minute area opening guardrail, well minute area standard section guardrail and bridge guardrail recycle wantonly for interim guardrail, dismantle light-duty sheet metal standard festival (1) for subsequent use, through transform supporting member and assembled reservation component mode set up can.
5. The concrete guardrail prefabricated thin plate structure and the recycling construction method thereof according to claim 4, wherein: the embedded bolts (13) are anchored in the foundation (11) in an embedded mode or a bar-planting bolt mode.
6. The concrete guardrail prefabricated thin plate structure and the recycling construction method thereof according to claim 4, wherein: and a flange plate is welded on the bottom surface of the back supporting member (10), the flange plate is provided with bolt holes, and the embedded bolts (13) penetrate through the bolt holes of the flange plate to be connected with the bridge in an anchoring manner.
7. The concrete guardrail prefabricated thin plate structure and the recycling construction method thereof according to claim 4, wherein: the foundation (11) comprises a roadbed or a bridge slab.
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| CN202110469443.5A CN113186854B (en) | 2021-04-28 | 2021-04-28 | Concrete guardrail prefabricated thin plate structure and recycling construction method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117071475A (en) * | 2023-08-15 | 2023-11-17 | 齐齐哈尔大学 | Assembled recycled aggregate vegetation concrete central partition belt guardrail and construction method thereof |
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| CN113186854B (en) | 2023-01-31 |
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