CN212477531U - Sea sand concrete and glass fiber reinforcement combined guardrail structure - Google Patents
Sea sand concrete and glass fiber reinforcement combined guardrail structure Download PDFInfo
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- CN212477531U CN212477531U CN201922282170.4U CN201922282170U CN212477531U CN 212477531 U CN212477531 U CN 212477531U CN 201922282170 U CN201922282170 U CN 201922282170U CN 212477531 U CN212477531 U CN 212477531U
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Abstract
The utility model discloses a sea sand concrete and glass fiber muscle combination guardrail structure, including glass fiber muscle, sea sand concrete, the glass fiber muscle includes vertical glass fiber muscle and constitutes glass fiber muscle cage, sea sand concrete wall body is connected with the basis anchor. The glass fiber reinforced plastic has high tensile strength and good cohesiveness with concrete; the glass fiber reinforced bar has better corrosion resistance, and the condition that the steel bar is not suitable is overcome; the glass fiber reinforced plastic guardrail is light in weight and convenient to transport and install; the concrete adopting the sea sand can effectively improve the matching of the use condition limitation and the material performance and reduce the construction cost.
Description
Technical Field
The utility model relates to a highway safety protection technical field particularly, relates to a sea sand concrete and glass fiber muscle combination guardrail structure.
Background
In the field of highway guardrails, concrete guardrails are widely applied to more and more road sections because of easily reaching high anti-collision grade, the concrete guardrails are mainly formed by pouring a steel reinforcement cage by building concrete according to a certain form, the reinforced concrete is greatly advocated and applied in the material field, the concrete guardrails and the reinforced concrete are matched in mechanical properties and are arranged on the aspect of durability, as is well known, steel bars are easy to rust under the action of water and oxygen, the concrete wrapped around the steel bars just plays a role in protecting the steel bars from rusting, the cement used for manufacturing the concrete has quite strong alkalinity after hydration reaction, the surfaces of the steel bars are oxidized, a thin and compact hydrated iron sesquioxide protective film is formed, and the effect of protecting the steel bars is achieved. In addition, the sand and stone are used as concrete fine aggregate, and if the concentration of the doped chloride ions is high to a certain degree, the doped chloride ions can permeate through the passivation film and react with the reinforcing steel bars to form soluble ferrous chloride, namely free ferrous ions and chloride ions. The passive film of ferric oxide loses the attached inner layer metal, and the passive film is dissolved along with the passive film, so that the reinforcing steel bar is finally damaged. And thus, some problems are exposed during the use of the reinforced concrete guard rail.
Firstly, the steel bar in a concrete structure is particularly difficult to prevent corrosion, the phenomenon that the steel bar is seriously corroded is found in some road sections at present, particularly, the safety protection performance of the reinforced concrete guardrail is seriously influenced in coastal areas and areas where ice and salt are removed in winter, and hidden danger is brought to the occurrence of road accidents; meanwhile, the reinforced concrete structure is heavy and difficult to hoist and transport, and the reinforced concrete structure is applied to bridge sections to greatly increase the self weight of the bridge and influence the safety of the self structure of the bridge.
Secondly, river sand and river sand are always adopted as control factors of chloride ions, but in recent years, as the policy of the government of China for forbidden exploitation and limited exploitation of natural river sand and river sand is unchanged and becomes stricter, the supply of the natural sand is seriously insufficient, and the price rises. The problem that a plurality of contractors use sea sand illegally for producing building concrete in order to save cost occurs, the sea sand is washed for a long time in seawater, the content of chloride ions is more than 0.06 percent, and the sea sand has strong corrosivity on reinforcing steel bars. Sea sand will have serious effects on the strength, impermeability, service life and the like of a concrete structure under the condition of improper use.
Therefore, under the limitation of the materials and the using conditions, the combined guardrail structure of the sea sand concrete and the glass fiber reinforced plastic is provided.
The material research shows that the glass fiber rib can achieve higher tensile strength, is light in weight and corrosion resistant, is a composite material compounded by taking high-strength glass fiber as a reinforcing material, taking synthetic resin as a base material and adding a proper amount of auxiliary agent, is 100% of inorganic fiber, is 1/4 of reinforcing steel bars with the same volume, has the density of 1.5-1.9 (g/cm 3), and can realize better bonding effect with concrete structure; meanwhile, the sea sand does not generate chemical reaction with chloride ions in the sea sand, the sea sand is low in manufacturing cost and high in content compared with natural river sand and river sand, concrete of the sea sand is adopted to be cast in cooperation with glass fiber ribs, the use condition limitation and material performance matching of a concrete structure can be effectively improved, engineering cost is saved, meanwhile, appropriate materials can be selected according to local conditions to carry out production work, the national policy of 'green traffic and safe traffic' is responded, and better safety guarantee is provided for roads.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a sea sand concrete and glass fiber muscle combination guardrail structure to increase concrete barrier's application scope, improve concrete barrier's corrosion resistance simultaneously, and reduce concrete barrier weight.
In order to achieve the technical purpose, the technical scheme of the utility model is realized as follows:
the utility model provides a sea sand concrete and glass fiber reinforcement combination guardrail structure, includes glass fiber muscle, sea sand concrete, the glass fiber muscle is 100% inorganic fiber, and the quality is 1/4 with the volume reinforcing bar, and density is between 1.5-1.9 (g/cm 3), the glass fiber muscle includes vertical glass fiber muscle and vertical glass fiber muscle, glass fiber muscle cage is constituteed with the ligature of vertical glass fiber muscle, vertical glass fiber muscle distributes in a plurality of and basic vertically plane, vertical glass fiber muscle is arranged along concrete wall length direction, pours sea sand concrete on glass fiber muscle cage and forms sea sand concrete wall, sea sand concrete wall is connected with the basic anchor.
Furthermore, the outline of the glass fiber reinforcement cage is matched with the cross section of the sea sand concrete wall body.
Further, a part of the vertical glass fiber ribs forming the glass fiber rib cage is embedded inside the foundation, the upper part of the vertical glass fiber ribs is connected with the vertical glass fiber ribs in a binding mode, and the glass fiber rib cage is connected with the foundation through the vertical glass fiber ribs in an embedded mode.
Further, the inside pre-buried glass fiber muscle in advance of basis, its above part and glass fiber muscle cage ligature are connected, glass fiber muscle cage is connected with basic foundation through pre-buried glass fiber muscle.
Furthermore, the slope surface of the collision-facing surface of the sea sand concrete wall body is an F-shaped slope surface, or a reinforced slope surface, or a single slope surface, and the back of the sea sand concrete wall body is a straight wall type or an inclined plane type.
Further, the foundation comprises bridge slabs and a roadbed, and when the foundation is in the form of the roadbed, the sea sand concrete wall is embedded in the pavement.
After the technical scheme is adopted, the utility model discloses following beneficial effect has:
(1) the glass fiber reinforced plastic has high tensile strength and good cohesiveness with concrete, and the manufactured concrete wall has good overall stability and strength;
(2) the glass fiber reinforcement has better corrosion resistance while the safety performance is met, overcomes the inapplicable condition of the reinforcement, can adapt to the climatic region with the corrosion resistance requirement on the guardrail, and is convenient for later maintenance;
(3) the concrete guardrail adopting the glass fiber reinforced bars has the advantages that the weight is greatly reduced, the transportation and the installation are convenient, and the safety of the self structure of the bridge is improved;
(4) the sea sand is used in the production of building concrete, is advocated by a new process, and promotes enterprises and scientific research units to attack and fight against the sea sand technology;
(5) the sea sand concrete and the glass fiber reinforcement are adopted for pouring in a matched mode, the limitation of the use condition of the concrete structure and the matching of the material performance can be effectively improved, and the construction cost can be reduced compared with a reinforced concrete guardrail.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of embodiment 1 of the present invention;
fig. 2 is a schematic view of embodiment 1 of the present invention and a bridge anchor;
fig. 3 is a schematic view of embodiment 2 of the present invention;
fig. 4 is a schematic view of embodiment 2 of the present invention and a roadbed anchor;
FIG. 5 is a schematic view of the glass fiber reinforcement cage of the present invention;
fig. 6 is a schematic view of a single slope surface of the sea sand concrete wall of the present invention;
fig. 7 is the domatic schematic diagram of sea sand concrete wall strenghthened type.
The figures are labeled as follows:
1. a pavement; 2. sea sand concrete; 3. vertical glass fiber ribs; 4. longitudinal glass fiber ribs; 5. a sea sand concrete wall; 6. a foundation; 7. a collision-facing surface; 8. a back; 9. and (5) pre-burying a glass fiber rib.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by a person skilled in the art based on the embodiments of the present invention belong to the protection scope of the present invention.
As shown in embodiment 1 of fig. 1, a sea sand concrete and glass fiber reinforcement combined guardrail structure comprises glass fiber reinforcement and sea sand concrete 2, and is characterized in that: the glass fiber reinforcement is a composite material compounded by taking high-strength glass fiber as a reinforcing material, taking synthetic resin as a base material and adding a proper amount of auxiliary agents, and is 100% of inorganic fiber, wherein the mass of the glass fiber reinforcement is 1/4 of reinforcing steel bars with the same volume, the density of the glass fiber reinforcement is 1.5-1.9 (g/cm 3), the sea sand concrete 2 is concrete formed by mixing sea sand as fine aggregate and other building pouring materials, the content of chloride ions in the sea sand is more than 0.06%, the glass fiber reinforcement comprises vertical glass fiber reinforcements 3 and longitudinal glass fiber reinforcements 4, the vertical glass fiber reinforcements 3 and the longitudinal glass fiber reinforcements 4 are bound to form a glass fiber reinforcement cage, the vertical glass fiber reinforcements 3 are distributed in a plurality of planes vertical to a foundation 6, the longitudinal glass fiber reinforcements 4 are arranged along the length direction of the concrete wall, the sea sand concrete 2 is poured on the glass fiber reinforcement cage to form a sea sand concrete wall 5 with a certain shape, the sea sand concrete wall 5 is connected with the foundation 6 in an anchoring mode. The structure can be applied to both a prefabrication process and a cast-in-place process.
The outline of the glass fiber reinforcement cage is matched with the section of the sea sand concrete wall 5, and the thickness of the protective layer is 5 cm.
The slope form of the collision-facing surface 7 of the sea sand concrete wall body 5 is an F-shaped slope, and the back 8 of the sea sand concrete wall body 5 is a straight wall.
The foundation 6 is a bridge plate.
As shown in fig. 2, the lower part of the vertical glass fiber reinforcement 3 is arranged and embedded below the foundation 6 for anchoring according to the design, a part of the vertical glass fiber reinforcement 3 forming the glass fiber reinforcement cage is embedded inside the foundation 6, the upper part of the vertical glass fiber reinforcement 3 is bound and connected with the vertical glass fiber reinforcement 4, the glass fiber reinforcement cage is connected with the foundation 6 through the vertical glass fiber reinforcement 3 in an embedded mode, and then the steps of formwork erection and pouring are carried out to form the sea sand concrete wall 5.
As shown in embodiment 2 of fig. 3, a sea sand concrete and glass fiber reinforced plastic combined guardrail structure comprises glass fiber reinforced plastic and sea sand concrete 2, and is characterized in that: the glass fiber reinforcement is a composite material compounded by taking high-strength glass fiber as a reinforcing material, taking synthetic resin as a base material and adding a proper amount of auxiliary agents, and is 100% of inorganic fiber, wherein the mass of the glass fiber reinforcement is 1/4 of reinforcing steel bars with the same volume, the density of the glass fiber reinforcement is 1.5-1.9 (g/cm 3), the sea sand concrete 2 is concrete formed by mixing sea sand as fine aggregate and other building pouring materials, the content of chloride ions in the sea sand is more than 0.06%, the glass fiber reinforcement comprises vertical glass fiber reinforcements 3 and longitudinal glass fiber reinforcements 4, the vertical glass fiber reinforcements 3 and the longitudinal glass fiber reinforcements 4 are bound to form a glass fiber reinforcement cage, the vertical glass fiber reinforcements 3 are distributed in a plurality of planes vertical to a foundation 6, the longitudinal glass fiber reinforcements 4 are arranged along the length direction of the concrete wall, the sea sand concrete 2 is poured on the glass fiber reinforcement cage to form a sea sand concrete wall 5 with a certain shape, the sea sand concrete wall 5 is connected with the foundation 6 in an anchoring mode. The structure can be applied to both a prefabrication process and a cast-in-place process.
The outline of the glass fiber reinforcement cage is matched with the section of the sea sand concrete wall 5, and the thickness of the protective layer is 4.5 cm.
The slope form of the collision-facing surface 7 of the sea sand concrete wall body 5 is an F-shaped slope, and the back 8 of the sea sand concrete wall body 5 is a straight wall.
The foundation 6 is a roadbed, and the sea sand concrete wall 5 is embedded in the pavement 1 in the form of the roadbed.
As shown in fig. 4, the lower part of the pre-buried glass fiber reinforcement 9 is arranged and pre-buried below the foundation 6 for anchoring according to the design, the pre-buried glass fiber reinforcement 9 is pre-buried inside the foundation 6 according to a certain distance, the upper part of the pre-buried glass fiber reinforcement is bound and connected with a glass fiber reinforcement cage, the glass fiber reinforcement cage is connected with the foundation 6 through the pre-buried glass fiber reinforcement 9, and then the steps of formwork erection and pouring are performed to form the sea sand concrete wall 5.
As shown in fig. 5, is a schematic view of the glass fiber reinforcement cage of the present invention. The glass fiber rib comprises a vertical glass fiber rib 3 and a longitudinal glass fiber rib 4, the vertical glass fiber rib 3 and the longitudinal glass fiber rib 4 are bound to form a glass fiber rib cage, the vertical glass fiber rib 3 is distributed in a plurality of planes perpendicular to the foundation 6, the planes are generally uniformly distributed, and the glass fiber rib cage can be encrypted if special strength requirements exist in partial areas. The quantity of vertical glass fiber muscle 3 is generally equal in every plane, and the mode of arranging is the same, and the place that vertical glass fiber muscle 3 is connected with vertical glass fiber muscle 4 is fixed through the ligature. In the embodiment, three glass fiber reinforcements are arranged in each vertical section, wherein the glass fiber reinforcement with the largest inclination degree at the lowermost part is used for improving the shear resistance and the overturning resistance of the sea sand concrete wall 5. According to the actual strength requirement of the sea sand concrete wall 5, the vertical glass fiber ribs 3 and the longitudinal glass fiber ribs 4 can adopt other quantities and arrangement modes.
As shown in fig. 6, it is a schematic view of a single slope surface of the sea sand concrete wall of the present invention. The utility model provides a sea sand concrete and glass fiber muscle combination guardrail structure, includes glass fiber muscle, sea sand concrete 2, its characterized in that: the glass fiber reinforcement is a composite material compounded by taking high-strength glass fiber as a reinforcing material, taking synthetic resin as a base material and adding a proper amount of auxiliary agents, and is 100% of inorganic fiber, wherein the mass of the glass fiber reinforcement is 1/4 of reinforcing steel bars with the same volume, the density of the glass fiber reinforcement is 1.5-1.9 (g/cm 3), the sea sand concrete 2 is concrete formed by mixing sea sand as fine aggregate and other building pouring materials, the content of chloride ions in the sea sand is more than 0.06%, the glass fiber reinforcement comprises vertical glass fiber reinforcements 3 and longitudinal glass fiber reinforcements 4, the vertical glass fiber reinforcements 3 and the longitudinal glass fiber reinforcements 4 are bound to form a glass fiber reinforcement cage, the vertical glass fiber reinforcements 3 are distributed in a plurality of planes vertical to a foundation 6, the longitudinal glass fiber reinforcements 4 are arranged along the length direction of the concrete wall, the sea sand concrete 2 is poured on the glass fiber reinforcement cage to form a sea sand concrete wall 5 with a certain shape, the sea sand concrete wall 5 is connected with the foundation 6 in an anchoring mode. The structure can be applied to both a prefabrication process and a cast-in-place process.
The outline of the glass fiber reinforcement cage is matched with the section of the sea sand concrete wall 5, and the thickness of the protective layer is 4 cm.
The slope form of the collision-facing surface 7 of the sea sand concrete wall body 5 is a single slope, and the back 8 of the sea sand concrete wall body 5 is an inclined surface.
The foundation 6 comprises bridge slabs and a roadbed, and the sea sand concrete wall 5 is embedded in the pavement 1 in the form of the roadbed.
As shown in fig. 7, it is a schematic view of a single slope surface of the sea sand concrete wall of the present invention. The utility model provides a sea sand concrete and glass fiber muscle combination guardrail structure, includes glass fiber muscle, sea sand concrete 2, its characterized in that: the glass fiber reinforcement is a composite material compounded by taking high-strength glass fiber as a reinforcing material, taking synthetic resin as a base material and adding a proper amount of auxiliary agents, and is 100% of inorganic fiber, wherein the mass of the glass fiber reinforcement is 1/4 of reinforcing steel bars with the same volume, the density of the glass fiber reinforcement is 1.5-1.9 (g/cm 3), the sea sand concrete 2 is concrete formed by mixing sea sand as fine aggregate and other building pouring materials, the content of chloride ions in the sea sand is more than 0.06%, the glass fiber reinforcement comprises vertical glass fiber reinforcements 3 and longitudinal glass fiber reinforcements 4, the vertical glass fiber reinforcements 3 and the longitudinal glass fiber reinforcements 4 are bound to form a glass fiber reinforcement cage, the vertical glass fiber reinforcements 3 are distributed in a plurality of planes vertical to a foundation 6, the longitudinal glass fiber reinforcements 4 are arranged along the length direction of the concrete wall, the sea sand concrete 2 is poured on the glass fiber reinforcement cage to form a sea sand concrete wall 5 with a certain shape, the sea sand concrete wall 5 is connected with the foundation 6 in an anchoring mode. The structure can be applied to both a prefabrication process and a cast-in-place process.
The outline of the glass fiber reinforcement cage is matched with the section of the sea sand concrete wall 5, and the thickness of the protective layer is 3 cm.
The slope surface form of the collision-facing surface 7 of the sea sand concrete wall body 5 is a reinforced slope surface, and the back 8 of the sea sand concrete wall body 5 is a straight wall type.
The foundation 6 comprises bridge slabs and a roadbed, and the sea sand concrete wall 5 is embedded in the pavement 1 in the form of the roadbed.
A combined guardrail structure of sea sand concrete and glass fiber bars corresponds to a common reinforced concrete guardrail, but a reinforcement cage in the reinforced concrete guardrail is replaced by a glass fiber bar cage, and common river sand concrete is replaced by sea sand concrete. The design tensile strength of a common steel bar is 360MPa, but the design tensile strength of a glass fiber bar with the diameter of 34 mm is 450MPa, and the design tensile strength of a glass fiber bar with the diameter of 16 mm is 600MPa, which is far greater than that of the steel bar. Compared with reinforced concrete, the combined use of concrete and glass fiber reinforced plastic has higher bending strength under the same structural condition, namely higher anti-collision capacity; if the strength is the same, the engineering quantity can be reduced; the sea sand has low manufacturing cost and high content compared with the river sand of natural river sand, and the concrete of the sea sand is matched with the glass fiber bar for pouring, so that the use condition limitation of a concrete structure and the matching of material performance can be effectively improved, particularly for projects close to a coastline, the construction cost is saved, and meanwhile, suitable materials can be selected according to local conditions for production.
The glass fiber reinforcement is for the reinforcing bar, and density reduces by a wide margin, the transportation and the construction of being convenient for can reduce the guardrail dead weight in the concrete guardrail, can reduce the load on bridge or road surface when using on the road.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a sea sand concrete and glass fiber muscle combination guardrail structure, includes glass fiber muscle, sea sand concrete (2), its characterized in that: the glass fiber reinforcement is 100% inorganic fiber, and the quality is 1/4 with the volume reinforcing bar, and density is between 1.5-1.9g/cm3, the glass fiber reinforcement includes vertical glass fiber reinforcement (3) and vertical glass fiber reinforcement (4), glass fiber reinforcement cage is constituteed in vertical glass fiber reinforcement (3) and vertical glass fiber reinforcement (4) ligature, vertical glass fiber reinforcement (3) distribute in a plurality of and basis (6) vertically plane, vertical glass fiber reinforcement (4) are arranged along concrete wall length direction, pour sea sand concrete (2) on glass fiber reinforcement cage and form sea sand concrete wall (5), sea sand concrete wall (5) are connected with basis (6) anchor.
2. The sea sand concrete and glass fiber reinforcement combined guardrail structure of claim 1, which is characterized in that: the outline of the glass fiber reinforcement cage is matched with the cross section of the sea sand concrete wall body (5).
3. The sea sand concrete and glass fiber reinforcement combined guardrail structure of claim 1, which is characterized in that: the glass fiber reinforcement cage is characterized in that a part of vertical glass fiber reinforcements (3) forming the glass fiber reinforcement cage is embedded inside a foundation (6), the upper part of the vertical glass fiber reinforcements is connected with vertical glass fiber reinforcements (4) in a binding mode, and the glass fiber reinforcement cage is connected with the foundation (6) through the vertical glass fiber reinforcements (3) in an embedded mode.
4. The sea sand concrete and glass fiber reinforcement combined guardrail structure of claim 1, which is characterized in that: basis (6) inside pre-buried glass fiber muscle (9) in advance, its above part and glass fiber muscle cage bound connection, glass fiber muscle cage passes through pre-buried glass fiber muscle (9) and is connected with basis (6) basis.
5. The sea sand concrete and glass fiber reinforcement combined guardrail structure of claim 1, which is characterized in that: the slope form of the collision-facing surface (7) of the sea sand concrete wall body (5) is an F-shaped slope, or a reinforced slope, or a single slope, and the back (8) of the sea sand concrete wall body (5) is a straight wall type or an inclined plane type.
6. The sea sand concrete and glass fiber reinforcement combined guardrail structure of claim 1, which is characterized in that: the foundation (6) comprises bridge slabs and a roadbed, and when the foundation (6) is in the form of the roadbed, the sea sand concrete wall (5) is embedded in the pavement (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201922282170.4U CN212477531U (en) | 2019-12-18 | 2019-12-18 | Sea sand concrete and glass fiber reinforcement combined guardrail structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922282170.4U CN212477531U (en) | 2019-12-18 | 2019-12-18 | Sea sand concrete and glass fiber reinforcement combined guardrail structure |
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| CN212477531U true CN212477531U (en) | 2021-02-05 |
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| CN201922282170.4U Active CN212477531U (en) | 2019-12-18 | 2019-12-18 | Sea sand concrete and glass fiber reinforcement combined guardrail structure |
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