CN109726449A - A kind of lattice point intersection anchoring process suitable for rigid lattice network shape material - Google Patents
A kind of lattice point intersection anchoring process suitable for rigid lattice network shape material Download PDFInfo
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- CN109726449A CN109726449A CN201811514693.0A CN201811514693A CN109726449A CN 109726449 A CN109726449 A CN 109726449A CN 201811514693 A CN201811514693 A CN 201811514693A CN 109726449 A CN109726449 A CN 109726449A
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Abstract
The invention discloses a kind of lattice points suitable for rigid lattice network shape material to intersect anchoring process, is used for concrete structure reinforcement, specific method is: first respectively cutting off the middle section in the lattice point spacing of one or more longitudinal rib of two panels netting material；Then the two panels netting material after excision is intersected splicing between the longitudinal rib after the excision of middle section, and by netting material fixed to component or body structure surface；Last spray furnace or concrete, netting material and component or construction bonds is integral.After the present invention is by cutting away middle section in lattice point spacing for the vertical muscle of two panels netting material, intersection is spliced to form entirety, two panels netting material is set to be in approximately the same plane, netting material is fixed on the surface of component or structure by spray furnace or concrete, common bearing load solves the problems, such as that sliding easily occurs for mesh sheet when overlapping lapping and anchoring or warpage is destroyed.In addition, this method is equally applicable in newly-built concrete structure.
Description
Technical field
The present invention relates to concrete structure and its field of reinforcement, and in particular to a kind of lattice point intersection of rigid lattice network shape material
Anchoring process is suitable for concrete structure.
Background technique
Rigid lattice network shape material is relatively common in practical projects, and the rigid rib material mainly used has reinforcing bar, FRP tendons, main
It is used for concrete structure reinforcement, specific implementation measure to be, by spray furnace or concrete by reinforced mesh or FRP grid
It is fixed on building structure surface, entirety is formed, to improve the performance of building structure.In addition it is also possible to be applied to newly-built coagulation
In soil structure.Because of its easy construction, cheap, it is widely applied in concrete structure.
In practical projects, especially in the engineering reinforcements such as large-scale wall, floorings, tunnel liner, it is limited to mesh sheet
Size or construction space generally require for two mesh sheet to be attached to form entirety；In reinforced bridge pier, building structure column,
It is also required to two mesh sheet forming entirety, to form effect of contraction to original structure, plays consolidation effect.Traditional practice is by two
A mesh sheet carries out overlapping overlap joint up and down, and using this kind of method tool, there are two obvious drawbacks, one is overlapping part is easily slided
Dynamic or warpage is destroyed, and warpage issues are difficult to solve by increasing the lap of splice；The second is overlapping part spray furnace or mixed
The net thickness for coagulating soil has lacked a mesh sheet thickness, Yi Fasheng cracking destruction relative to other positions.To realize reliable anchoring, often
The thickness for needing to increase mortar or concrete, causes waste of material.
Summary of the invention
Aiming at the problems existing in the prior art, the purpose of the present invention is to provide one kind to be suitable for rigid lattice network shape material
Lattice point intersect anchoring process, the anchoring property of rigid lattice network shape material can be improved, and can effectively solve tradition overlapping overlap joint anchor
Gu when mesh sheet easily occur sliding or warpage destroy the problem of；Material utilization amount has been saved simultaneously.
In order to achieve the above object, the present invention is achieved by the following scheme.
A kind of lattice point intersection anchoring process suitable for rigid lattice network shape material, comprising the following steps:
Step 1, the middle part in the lattice point spacing of one or more longitudinal rib of two panels netting material is cut respectively
It removes；The longitudinal rib is in netting material perpendicular to the muscle in anchoring direction；
Step 2, the two panels netting material after excision is intersected spelling between the longitudinal rib after the excision of middle section
It connects, and netting material is fixed to component or body structure surface；
Step 3, by spray furnace or concrete that netting material and component or construction bonds is integral, play reinforcement
Effect.
The features of the present invention and further improvement is that
Middle section in step 1, in the lattice point spacing of one or more longitudinal rib by two panels netting material
When excision, the excision width in the lattice point spacing of the longitudinal rib of every netting material is not less than the cross of another netting material
To the diameter of muscle.
The muscle material of the netting material is reinforcing bar or FRP tendons.
In step 4, the spray furnace or concrete with a thickness of 10-20mm.
Further, in step 4, the mortar is Polymer-Modified Mortar, and the concrete is polymer modification coagulation
Soil.
Before netting material is fixed to component or body structure surface, component or structure need to be surface-treated.
Further, the surface treatment is the surfacing for making the component or structure.
Further, it before netting material is fixed to component or body structure surface, is smeared in component or body structure surface
Interfacial agents.
Compared with prior art, the invention has the benefit that
The present invention intersects anchoring process using the lattice point of rigid lattice network shape material, by by the vertical muscle of two panels netting material
After cutting away middle section in lattice point spacing, intersection is spliced to form entirety, and two panels netting material is made to be in approximately the same plane,
Netting material is fixed on the surface of component or structure, common bearing load by spray furnace or concrete.
The resistant function that the anchorage effect of anchoring process of the invention mainly passes through lattice point undertakes with muscle material cementation,
The anchoring property that rigid lattice network shape material can be improved, sliding or warpage easily occur for mesh sheet when efficiently solving overlapping lapping and anchoring
The problem of destruction.On the other hand, intersect the thickness for covering mortar or concrete on anchoring position as other positions, save material
Expect dosage.This method structure is simple, changes less to existing structure, and significant effect has good engineering practicability.
Detailed description of the invention
The present invention is described in further details in the following with reference to the drawings and specific embodiments.
Fig. 1 is the anchor structure schematic diagram of conventional rigid grid lapping and anchoring method；
Fig. 2 is the anchor structure schematic diagram that the lattice point suitable for rigid lattice network shape material of the invention intersects anchoring process；
Fig. 3 is that a kind of single lattice point of embodiment of the invention intersects ruggedized construction schematic cross-sectional view；
Fig. 4 is the overall structure diagram of Fig. 3；
Fig. 5 is the overlooking structure diagram of Fig. 3；
Fig. 6 is that double lattice points of another embodiment of the invention intersect ruggedized construction schematic cross-sectional view；
Fig. 7 is that more lattice point R-joinings of another embodiment of the invention intersect the structural schematic diagram of anchoring.
In figure 1 above-Fig. 7: 1 concrete column；2 netting materials；3 fixed devices；The mortar or concrete of 4 injections；5 lattice
The horizontal bar of Web materials；The longitudinal rib of 6 netting materials.
Specific embodiment
Embodiment of the present invention is described in detail below in conjunction with embodiment, but those skilled in the art will
It will be appreciated that the following example is merely to illustrate the present invention, and it is not construed as limiting the scope of the invention.
With reference to Fig. 1, Fig. 1 is traditional schematic diagram that two mesh sheet are overlapped to overlapped anchoring process up and down, exists and takes
The net thickness of the problem of sliding or warpage destruction and overlapping part spray furnace or concrete can occur for socket part position relative to it
A problem of mesh sheet thickness has been lacked at his position, Yi Fasheng cracking destruction.
In view of the above-mentioned problems, with reference to Fig. 2, the embodiment of the invention provides a kind of lattice points to intersect anchoring process, by by two
After the vertical muscle of piece netting material cuts away middle section in each lattice point spacing, intersection is spliced to form entirety, makes two panels grid
Shape material is in the surface that netting material is fixed on component or structure by approximately the same plane, spray furnace or concrete, jointly
Bearing load.This method is suitable for rigid lattice network shape material, and the anchoring property of rigid lattice network shape material can be improved, can effectively solve
The problem of sliding or warpage destruction, easily occurs for mesh sheet when tradition overlapping lapping and anchoring；Material utilization amount can be saved simultaneously.
Embodiment 1
It is sequentially included the following steps: with reference to Fig. 3 using FRP grid reinforced concrete column
Step 1, the middle part in each lattice point spacing of a longitudinal rib of two panels FRP grid material is cut respectively first
It removes；The width of excision between the neighboring lattice points of the longitudinal rib of every FRP grid material is not less than the transverse direction of another FRP grid material
The diameter of muscle.
Step 2, then by the two panels FRP grid material after above-mentioned cut off between the longitudinal rib after the excision of middle section
Intersect splicing, forms an entirety, i.e., is intersected by a lattice point vertical masonry joint.
Step 3, then spliced FRP grid material is passed through into fixed device and is fixed to component or body structure surface to be reinforced.
Step 4, finally by spray furnace or concrete by FRP grid material with component to be reinforced or construction bonds at whole
Body plays reinforcement effect as shown in Figure 4 and Figure 5.Wherein, jet thickness 15mm, mortar are Polymer-Modified Mortar, coagulation
Soil is polymer modified concrete.
The present embodiment is first handled the surface of concrete column before step 3 construction, keeps the surface of concrete column flat
Whole, to increase its contact area with reinforcement material, then spraying one layer on the concrete column surface of surfacing again be can be improved
The interfacial agents of interfacial bond property can be mentioned more efficiently with enhancing the cementation between concrete column and FRP grid material
The anchoring property of high rigidity FRP grid material.
Wherein, the agent of the present embodiment median surface is to be mixed together by dry powder and base-material in the ratio of 3:1.Dry powder matches
Cement: coarse sand: fine sand=2:2:1, base-material proportion are water: the third cream: 901 glue=2:0.5:0.9；The coating thickness of interfacial agents is
1mm。
Embodiment 2
It is sequentially included the following steps: with reference to Fig. 6 using FRP grid reinforced concrete column
Step 1, the middle part in each lattice point spacing of two longitudinal ribs of two panels FRP grid material is cut respectively first
It removes；The width of excision between the neighboring lattice points of the longitudinal rib of every FRP grid material is not less than the transverse direction of another FRP grid material
The diameter of muscle.
Step 2, then by the two panels FRP grid material after above-mentioned cut off between the longitudinal rib after the excision of middle section
Intersect splicing, forms an entirety, i.e., is intersected by two lattice point vertical masonry joints.
Step 3, then spliced FRP grid material is passed through into fixed device and is fixed to component or body structure surface to be reinforced.
Step 4, finally by spray furnace or concrete by FRP grid material with component to be reinforced or construction bonds at whole
Body plays reinforcement effect as shown in Figure 4 and Figure 5.Wherein, jet thickness 15mm, mortar are Polymer-Modified Mortar, coagulation
Soil is polymer modified concrete.
The present embodiment is first handled the surface of concrete column before step 3 construction, keeps the surface of concrete column flat
It is whole, to increase its contact area with reinforcement material, one layer of 2mm thickness then is sprayed on the concrete column surface of surfacing again
The interfacial agents of interfacial bond property can be improved, to enhance the cementation between concrete column and FRP grid material, can more added with
Improve the anchoring property of FRP grid material in effect ground.
In above embodiments, spliced FRP grid material is fixed to by component or structure to be reinforced by fixed device
Surface, the fixed form being all made of in conventional anchorage style, it is therefore an objective to by FRP grid material be simply secured to component to be reinforced or
Body structure surface is stablized the position of FRP grid material, is facilitated subsequent in FRP grid material surface spray furnace or concrete.
It is noted that reinforced mesh reinforced concrete column or other structures to be reinforced also can be used in the embodiment of the present invention
Part or structure.Also, when cutting off the longitudinal rib of grid reinforcement material, the radical cut away is mainly by material property and practical reinforcing
Depending on the demand of mode, the width of excision is also mainly influenced by lattice point spacing and muscle material size；Correspondingly, cross modal
Also different due to the difference of cutting mode and intersection lattice point number.
With reference to Fig. 7, Fig. 7 is while having cut off the more longitudinal ribs and horizontal bar of netting material, makes two panels grid shape material
In the way of material carries out intersecting splicing in such a way that R-joining intersects, which is more suitable for adding the component of plate structure
Gu equally can achieve the purpose for making two panels netting material be in approximately the same plane, and anchoring property is improved, effectively solved
Determined overlapping lapping and anchoring when mesh sheet easily occur sliding or warpage destroy the problem of.
Although the present invention is described in detail with a general description of the specific embodiments in this specification,
But on the basis of the present invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.
Therefore, these modifications or improvements without departing from theon the basis of the spirit of the present invention, belong to claimed model
It encloses.
Claims (7)
1. a kind of lattice point suitable for rigid lattice network shape material intersects anchoring process, which comprises the following steps:
Step 1, the middle section in the lattice point spacing of one or more longitudinal rib of two panels netting material is cut off respectively；Institute
Stating longitudinal rib is in netting material perpendicular to the muscle in anchoring direction；
Step 2, the two panels netting material after excision is intersected splicing between the longitudinal rib after the excision of middle section, and
Netting material is fixed to component or body structure surface；
Step 3, by spray furnace or concrete that cell material and component or construction bonds is integral, play booster action.
2. the lattice point according to claim 1 suitable for rigid lattice network shape material intersects anchoring process, which is characterized in that step
In rapid 1, the excision width in the lattice point spacing of the longitudinal rib of every netting material is not less than the cross of another netting material
To the diameter of muscle.
3. the lattice point according to claim 1 suitable for rigid lattice network shape material intersects anchoring process, which is characterized in that institute
The muscle material for stating netting material is reinforcing bar or FRP tendons.
4. the lattice point according to claim 1 suitable for rigid lattice network shape material intersects anchoring process, which is characterized in that step
In rapid 4, the spray furnace or concrete with a thickness of 10-20mm.
5. the lattice point according to claim 1 or 4 suitable for rigid lattice network shape material intersects anchoring process, feature exists
In in step 4, the mortar is Polymer-Modified Mortar, and the concrete is polymer modified concrete.
6. the lattice point according to claim 1 suitable for rigid lattice network shape material intersects anchoring process, which is characterized in that step
In rapid 2, before netting material is fixed to component or body structure surface, component or structure need to be surface-treated, make institute
State the surfacing of component or structure.
7. the lattice point according to claim 6 suitable for rigid lattice network shape material intersects anchoring process, which is characterized in that
Before netting material is fixed to component or body structure surface, interfacial agents are smeared in component or body structure surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811514693.0A CN109726449B (en) | 2018-12-12 | 2018-12-12 | Lattice point cross anchoring method suitable for rigid grid material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811514693.0A CN109726449B (en) | 2018-12-12 | 2018-12-12 | Lattice point cross anchoring method suitable for rigid grid material |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH674546A5 (en) * | 1987-12-08 | 1990-06-15 | Jean Bernold | Construction of reinforced concrete wall in tunnel - whereby concrete is sprayed over mesh direct on to rock face |
| CN101503881A (en) * | 2009-03-18 | 2009-08-12 | 北京特希达技术研发有限公司 | Method for reinforcing underwater structure by fiber-reinforced composite material grid ribs |
| CN105888283A (en) * | 2016-05-10 | 2016-08-24 | 郑州大学 | Method for reinforcing reinforced concrete shear wall structure by using FRP grid strengthened ECC strips |
-
2018
- 2018-12-12 CN CN201811514693.0A patent/CN109726449B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH674546A5 (en) * | 1987-12-08 | 1990-06-15 | Jean Bernold | Construction of reinforced concrete wall in tunnel - whereby concrete is sprayed over mesh direct on to rock face |
| CN101503881A (en) * | 2009-03-18 | 2009-08-12 | 北京特希达技术研发有限公司 | Method for reinforcing underwater structure by fiber-reinforced composite material grid ribs |
| CN105888283A (en) * | 2016-05-10 | 2016-08-24 | 郑州大学 | Method for reinforcing reinforced concrete shear wall structure by using FRP grid strengthened ECC strips |
Non-Patent Citations (1)
| Title |
|---|
| 顾水友等: "预应力FRP网格加固混凝土空心板的张拉工法及其抗弯性能试验研究", 《建筑技术开发》 * |
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