CN214993806U - Non-metal anti-floating anchor rod structure system - Google Patents
Non-metal anti-floating anchor rod structure system Download PDFInfo
- Publication number
- CN214993806U CN214993806U CN202120622861.9U CN202120622861U CN214993806U CN 214993806 U CN214993806 U CN 214993806U CN 202120622861 U CN202120622861 U CN 202120622861U CN 214993806 U CN214993806 U CN 214993806U
- Authority
- CN
- China
- Prior art keywords
- anchor rod
- rod body
- metal
- anchoring section
- steel bar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The utility model belongs to the technical field of underground structure anti-floating, and relates to a non-metal anti-floating anchor rod structure system, wherein a non-metal anchor rod body is embedded into a grouting body in an inner anchoring section, the non-metal anchor rod body passes through a locator to reserve a hole, and the non-metal anchor rod body is fixed in the central position of an anchor rod hole; the lower end of the steel bar anchor rod body is connected with the upper end of the nonmetal anchor rod body, a waterproof plate is arranged at the joint of the nonmetal anchor rod body and the end of the steel bar anchor rod body, the lower surface of the waterproof plate and the joint of the waterproof plate and the threaded steel sleeve are provided with rubber water stop strips, and a structural cushion layer connecting the inner anchoring section and the outer anchoring section is arranged below the foundation slab; its simple structure, installation convenient to use installs the waterproof board additional in outer anchor section moreover, paints epoxy at the bottom of the waterproof board to and establish back of the body formula inflation rubber sealing rod in the waterproof board drill way, dual stagnant water measure, the influence of tight accuse groundwater to muscle body surface.
Description
The technical field is as follows:
the utility model belongs to the technical field of underground structure anti-floating, a nonmetal anti-floating anchor rod structure system is related to.
Background art:
along with the continuous expansion of the urbanization construction scale, the urban land is increasingly tense, the large-area development of underground buildings (structures) such as urban rail transit, urban underground complexes and the like is realized, the foundation burial depth is continuously increased, and the problem of the anti-floating of the underground structures is more and more severe especially in coastal areas and areas with higher underground water level. In recent years, accidents of structural cracking and destruction caused by anti-floating failure of basements frequently occur in various places, so that the life and property safety is greatly damaged, and the society and the environment are also severely influenced. The traditional steel bar anti-floating anchor rod is difficult to fundamentally overcome the influence of corrosion in the underground complex environment. The nonmetal anchor rod has the advantages of good corrosion resistance, high tensile strength, no conduction and the like, so that a head corner can be exposed in underground anti-floating engineering.
In the underground anti-floating design, the anchoring section between the anchor rod and the rock-soil body is called an inner anchoring section, the anchoring section between the anchor rod and the foundation bottom plate is called an outer anchoring section, and when the thickness of the foundation bottom plate is thinner, the direct anchoring easily causes insufficient anchoring length and does not meet the requirements of related specifications. In order to improve the anchoring force of the anchor rod and the foundation slab, the prior art generally carries out bending treatment on the anchor rod inserted into the foundation slab; but the non-metal anchor rod has low shear strength, can not be bent on site, needs to be once formed when being processed in a factory according to design requirements, and then is transported to a construction site, thereby wasting time and labor. Therefore, a novel underground structure anti-floating structural system and a mounting method need to be developed, so that the problem of anchoring length is solved, and sufficient anchoring force can be provided; on the other hand, the anchor rod is convenient to manufacture on a construction site, quick installation is realized, and the corrosion problem of the traditional metal anchor rod is solved.
The invention content is as follows:
the utility model discloses an invention aim at overcomes the technical defect that current anti-floating anchor rod structure system exists, and the design provides a nonmetal anti-floating anchor rod structure system and installation method, not only solves the durability problem of anti-floating anchor rod in the erosion environment, can also fuse with traditional handicraft mutually, solves the difficult problem of popularization and application.
In order to achieve the purpose, the structure of the non-metal anti-floating anchor rod structure system of the utility model comprises a grouting body, a non-metal anchor rod body, a positioner, a threaded steel sleeve, a bidirectional screw, a waterproof plate, a steel bar anchor rod body, a structure cushion layer, a foundation slab, an outer anchoring section and an inner anchoring section; the non-metal anchor rod body of the full-thread solid cylindrical structure is embedded into the grouting body in the inner anchoring section, and the number of the non-metal anchor rod bodies is determined according to actual needs; the locator is a porous sheet structure, the number of holes reserved on the locator is consistent with the number of nonmetal anchor rod bodies, the nonmetal anchor rod bodies penetrate through the reserved holes of the locator, and the nonmetal anchor rod bodies are fixed in the center of the anchor rod holes; the steel bar anchor rod body is arranged in the outer anchoring section and is of a 90-degree bending structure and used for increasing the bonding area of the steel bar anchor rod body and the foundation slab; the lower end of the steel bar anchor rod body is connected with the upper end of the nonmetal anchor rod body, two ends of the connection part are respectively provided with a thread steel sleeve with a built-in thread and are encapsulated by epoxy resin, and the two ends are connected by a bidirectional screw; the waterproof plate is arranged at the joint of the end of the non-metal anchor rod body and the end of the reinforced anchor rod body, the rubber water stop strip is arranged on the lower surface of the waterproof plate and the joint of the lower surface of the waterproof plate and the threaded steel sleeve, when groundwater reaches the waterproof plate, the rubber water stop strip expands when encountering water, and the hole between the rubber water stop strip and the waterproof plate is tightly filled, so that the groundwater is prevented from permeating into the foundation bottom plate along the rod body from bottom to top, the purpose of water stopping is achieved, and the normal use of an underground space is ensured; the structural cushion layer is arranged below the foundation slab and used for connecting the inner anchoring section and the outer anchoring section.
The grouting body of the utility model is made of cement paste or cement mortar added with 5 percent to 7 percent of micro-expansion cement admixture and is used for improving the gripping force of the grouting body to the non-metal anchor rod body 2.
The non-metal anchor rod body uses glass fiber as the main raw and other materials to synthetic resin makes after pultrusion, solidification and special surface treatment as matrix material, and the diameter is 25mm, 28mm or 32mm, and the upper portion end system of the non-metal anchor rod body has the screw thread.
Nonmetal stock body of rod also can be made by carbon fiber polymer, basalt fiber polymer or aramid fiber polymer material.
The locator adopts the fibre goods of non-metal stock body of rod homogeneous material to make, and its thickness is 10 ~ 15mm, and the diameter slightly is less than the stock aperture, and the vertical interval of two adjacent locators is 1.5 ~ 2.0m, and the locator is fixed at the surface of the non-metal stock body of rod through pricking the silk state, guarantees that the non-metal stock body of rod is located stock hole central authorities.
The reinforcing bar stock body of rod adopts hot rolling ribbed steel bar, makes 90 crotch, and the horizontal level of department of buckling extends to nonmetal stock body of rod both sides, and reinforcing bar stock body of rod lower part end system has the screw thread with the coupling of threaded steel sleeve, and the diameter of the reinforcing bar stock body of rod is the same with the diameter of the nonmetal stock body of rod.
Threaded steel sleeve length is 250 ~ 300mm, built-in screw thread, and its internal diameter slightly is greater than non-metal stock body of rod external diameter to paint the mixed liquid of epoxy and curing agent, the upper end of the non-metal stock body of rod and the lower extreme of the reinforcing bar stock body of rod are protected the back with the threaded steel sleeve respectively, utilize the two-way screw rod butt joint to screw up, and the length that the two-way screw rod is located the non-metal stock body of rod and the reinforcing bar stock body of rod is 50 ~ 100mm, adds the gasket during installation, prevents the slippage.
The waterproof board is circular punching steel sheet, and thickness is 3 ~ 5mm, and punching aperture ratio is slightly bigger than threaded steel sleeve, during the installation, paints epoxy and curing agent mixed liquid with the waterproof board bottom and fixes, adds in the punching aperture and establishes back of the body formula inflation rubber sealing rod to closely laminate with threaded steel sleeve.
Compared with the prior art, the utility model, adopt many stock anti-floating structural style in a hole, the anti-floating stock of full thread that interior anchor section adopted polymer material to make, and utilize homogenous locator fixed position, the reinforcing bar stock body of rod is utilized to outer anchor section, the processing of buckling is in order to increase the cohesive force, interior anchor section, the threaded steel sleeve of built-in screw thread of outer anchor section muscle material anchor head installation, utilize two-way screw rod mechanical connection, a structure is simple, installation convenient to use, interior anchor section muscle material affected by the corruption has both been overcome, outer anchor section cohesive force has been strengthened again, and anchor section installs the waterproof board additional outside, paint epoxy at the bottom of the waterproof board, and establish back of the body formula inflation rubber sealing strip additional in the waterproof board drill way, dual stagnant water measure, the influence of tight accuse groundwater to muscle body surface.
Description of the drawings:
fig. 1 is the main structure schematic diagram of the non-metal anti-floating anchor rod structure system of the present invention.
Fig. 2 is a cross-sectional view of the inner anchoring section of the present invention.
Fig. 3 is the installation structure diagram of the waterproof board of the present invention.
Fig. 4 is a cross-sectional view of the waterproof board of the present invention.
The specific implementation mode is as follows:
the present invention will be further explained by the following embodiments with reference to the accompanying drawings.
Example (b):
the structure of the non-metal anti-floating anchor rod structure system in the embodiment comprises a grouting body 1, a non-metal anchor rod body 2, a positioner 3, a threaded steel sleeve 4, a two-way screw 5, a waterproof plate 6, a steel bar anchor rod body 7, a structure cushion layer 8, a foundation slab 9, an outer anchoring section 10 and an inner anchoring section 11; the nonmetal anchor rod bodies 2 of the full-thread solid cylindrical structure are embedded in the grouting body 1 in the inner anchoring section 11, and the number of the nonmetal anchor rod bodies 2 is two; the locator 3 is a porous sheet structure, the number of holes reserved on the locator 3 is consistent with the number of the nonmetal anchor rod bodies 2, the nonmetal anchor rod bodies 2 penetrate through the holes reserved on the locator 3, and the nonmetal anchor rod bodies 2 are fixed in the center of the anchor rod holes; the steel bar anchor rod body 7 is arranged in the outer anchoring section 10, and the steel bar anchor rod body 7 is of a 90-degree bending structure and is used for increasing the bonding area between the steel bar anchor rod body 7 and the foundation slab 9; the lower end head of the steel bar anchor rod body 7 is connected with the upper end head of the nonmetal anchor rod body 2, two end heads at the connection part are respectively provided with a thread steel sleeve 4 with a built-in thread and are encapsulated by epoxy resin, and the two end heads are connected by a bidirectional screw 5; the waterproof plate 6 is arranged at the end heads of the non-metal anchor rod body 2 and the reinforced anchor rod body 7, the rubber water stop strip 13 is arranged on the lower surface of the waterproof plate 6 and the joint of the lower surface of the waterproof plate 6 and the threaded steel sleeve 4, when groundwater reaches the waterproof plate 6, the rubber water stop strip 13 expands when encountering water, the gap between the rubber water stop strip and the waterproof plate 6 is tightly filled, and the groundwater is prevented from permeating into the foundation bottom plate 9 from bottom to top along the rod body, so that the purpose of water stopping is achieved, and the normal use of an underground space is ensured; the structural mat 8 is arranged below the foundation sole 9 for connecting the inner anchoring section 11 and the outer anchoring section 10.
In this embodiment, the grout body 1 is made of cement paste or cement mortar with 5% -7% of micro-expansion cement admixture, and is used for improving the gripping force of the grout body 1 on the non-metal anchor rod body 2.
In the embodiment, the nonmetal anchor rod body 2 is made of glass fiber serving as a main raw material and synthetic resin serving as a base material through pultrusion, curing and special surface treatment, the diameter of the nonmetal anchor rod body is 25mm, 28mm or 32mm, and the upper end of the nonmetal anchor rod body 2 is provided with threads.
The non-metal anchor rod body 2 of the present embodiment can also be made of carbon fiber polymer, basalt fiber polymer or aramid fiber polymer material.
This embodiment locator 3 adopts the fibre goods of the non-metal stock body of rod 2 homogeneous material to make, and its thickness is 10 ~ 15mm, and the diameter slightly is less than the stock aperture, and two adjacent locator 3's vertical interval is 1.5 ~ 2.0m, and locator 3 is fixed at the surface of the non-metal stock body of rod 2 through the state of rolling over the silk, guarantees that the non-metal stock body of rod 2 is located stock hole central authorities.
This embodiment the reinforcing bar stock body of rod 7 adopts hot rolling ribbed steel bar, makes 90 crotch, and the horizontal level of department of buckling extends to 2 both sides of the nonmetal stock body of rod, and 7 lower part end systems of the reinforcing bar stock body of rod have with the screw thread of threaded steel sleeve 4 coupling, and the diameter of the reinforcing bar stock body of rod 7 is the same with the diameter of the nonmetal stock body of rod 2.
This embodiment 4 length of threaded steel sleeve is 250 ~ 300mm, built-in screw thread, its internal diameter slightly is greater than the nonmetal stock body of rod 2 (reinforcing bar stock body of rod 7) external diameter to paint the mixed liquid of epoxy and curing agent, the back is protected with threaded steel sleeve 4 respectively to the upper end of the nonmetal stock body of rod 2 and the lower extreme of the reinforcing bar stock body of rod 7, utilize two-way screw 5 butt joint to screw up, the length that two-way screw 5 is located nonmetal stock body of rod 2 and reinforcing bar stock body of rod 7 is 50 ~ 100mm, add the gasket during the installation, prevent the slippage.
This embodiment waterproof board 6 is circular punching steel board, and thickness is 3 ~ 5mm, and punching aperture diameter ratio threaded steel sleeve 4 is slightly big, during the installation, paints epoxy and curing agent mixed liquid with waterproof board 6 bottom and fixes, adds at the punching drill way and establishes back of the body formula expansion rubber sealing rod 13 to closely laminate with threaded steel sleeve 4.
The concrete installation process of non-metal anti-floating anchor rod structure system described in this embodiment is:
(1) positioning and drilling the foundation 12 by adopting a conventional process, wherein the aperture formed by drilling is 100-150 mm, and the hole depth is reserved for 500 mm;
(2) after removing residues at the bottom of the hole, fixing the positioner 3 on the non-metal anchor rod bodies 2 by using bar planting glue or binding, wherein the distance between the positioner and the hole opening is 100-200 mm, the distance between the positioner and the hole opening is 1.5-2.0 m, and the two non-metal anchor rod bodies 2 are simultaneously lowered to the designed height; before grouting, mounting a threaded steel sleeve 4 on an orifice anchor head to prevent the anchor head of the non-metal anchor rod body 2 from being damaged in the grouting process; when pouring concrete or mortar, 5 to 7 percent of micro-expansion cement admixture is added. After the pouring is finished, standard maintenance is carried out for 28 days, indoor strength detection is carried out on a test piece made of the grout body 1 according to relevant standard requirements, the anchor rod is subjected to on-site drawing detection, and the next construction can be carried out after the detection is qualified;
(3) laying a structural cushion layer 8 and leveling, after curing for 7 days, installing a reinforcing steel bar anchor rod body 7 in an outer anchoring section 10, wherein the length of the reinforcing steel bar anchor rod body 7 is 1.0-1.5 m, bending a reinforcing steel bar into 90 degrees by using a reinforcing steel bar bending machine, installing threaded steel sleeves 4 of the same type at joints of a non-metal anchor rod body 2 and the reinforcing steel bar anchor rod body 7, installing a waterproof plate 6 before butt joint of the joints, coating epoxy resin and curing agent mixed liquid on the bottom of the waterproof plate 6 for fixing, additionally arranging a back-attached type expansion rubber water stop strip 13 at an orifice of the waterproof plate 6 to be tightly attached to the threaded steel sleeves 4, and tightly connecting the upper threaded steel sleeve 4 of the non-metal anchor rod body 2 with the lower threaded steel sleeve 4 of the reinforcing steel bar anchor rod body 7 by using a bidirectional screw 5 to form an anti-floating anchor rod structure system;
(4) pouring the foundation slab 9, binding the steel bars of the foundation slab 9 according to the design drawing, pouring the steel bar anchor rod body 7, the waterproof plate 6 and the rubber water stop strip 13 on the SBS waterproof coiled material together by using concrete to form the structural slab 9, and determining the strength grade of the concrete according to the design requirement. The elevation from the top end of the steel bar anchor rod body 7 to the foundation slab 9 should be larger than 65mm so as to protect the steel bar anchor rod.
Claims (6)
1. A non-metal anti-floating anchor rod structure system is characterized in that a main body structure comprises a grouting body, a non-metal anchor rod body, a positioner, a threaded steel sleeve, a bidirectional screw, a waterproof plate, a steel bar anchor rod body, a structure cushion layer, a foundation slab, an outer anchoring section and an inner anchoring section; the non-metal anchor rod body of the full-thread solid cylindrical structure is embedded into the grouting body in the inner anchoring section, and the number of the non-metal anchor rod bodies is determined according to actual needs; the locator is a porous sheet structure, the number of holes reserved on the locator is consistent with the number of nonmetal anchor rod bodies, the nonmetal anchor rod bodies penetrate through the reserved holes of the locator, and the nonmetal anchor rod bodies are fixed in the center of the anchor rod holes; the steel bar anchor rod body is arranged in the outer anchoring section and is of a 90-degree bending structure; the lower end of the steel bar anchor rod body is connected with the upper end of the nonmetal anchor rod body, two ends of the connection part are respectively provided with a thread steel sleeve with a built-in thread and are encapsulated by epoxy resin, and the two ends are connected by a bidirectional screw; the waterproof plate is arranged at the joint of the non-metal anchor rod body and the end of the steel bar anchor rod body, the lower surface of the waterproof plate and the joint of the waterproof plate and the threaded steel sleeve are provided with rubber water stop strips, and a structural cushion layer for connecting the inner anchoring section and the outer anchoring section is arranged below the foundation slab.
2. A non-metallic anti-floating anchor rod structural system according to claim 1, wherein the diameter of the non-metallic anchor rod body is 25mm, 28mm or 32mm, and the upper end of the non-metallic anchor rod body is threaded.
3. The non-metal anti-floating anchor rod structure system according to claim 1, wherein the thickness of the locator is 10-15 mm, the diameter of the locator is smaller than the aperture of the anchor rod hole, the vertical interval between two adjacent locators is 1.5-2.0 m, and the locator is fixed on the outer surface of the non-metal anchor rod body through a binding wire.
4. The non-metal anti-floating anchor rod structure system according to claim 1, wherein the bent portion of the rod body of the steel bar anchor rod horizontally extends to two sides of the rod body of the non-metal anchor rod, the lower end of the rod body of the steel bar anchor rod is provided with a thread coupled with a threaded steel sleeve, and the diameter of the rod body of the steel bar anchor rod is the same as that of the rod body of the non-metal anchor rod.
5. The non-metal anti-floating anchor rod structure system according to claim 1, wherein the length of the threaded steel sleeve is 250-300 mm, the thread is arranged in the threaded steel sleeve, the inner diameter of the threaded steel sleeve is larger than the outer diameter of the non-metal anchor rod body, and the lengths of the bidirectional screw rods, which are positioned on the non-metal anchor rod body and the reinforced anchor rod body, are 50-100 mm.
6. The non-metal anti-floating anchor rod structure system according to claim 1, wherein the waterproof plate is a round perforated steel plate, the thickness of the waterproof plate is 3-5 mm, and the diameter of the perforated hole is larger than the outer diameter of the threaded steel sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120622861.9U CN214993806U (en) | 2021-03-26 | 2021-03-26 | Non-metal anti-floating anchor rod structure system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120622861.9U CN214993806U (en) | 2021-03-26 | 2021-03-26 | Non-metal anti-floating anchor rod structure system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214993806U true CN214993806U (en) | 2021-12-03 |
Family
ID=79162710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120622861.9U Active CN214993806U (en) | 2021-03-26 | 2021-03-26 | Non-metal anti-floating anchor rod structure system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214993806U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114737566A (en) * | 2022-05-12 | 2022-07-12 | 青岛理工大学 | Pre-tightening force applying device and method for large-diameter pre-tensioned glass fiber rib anti-floating anchor rod |
-
2021
- 2021-03-26 CN CN202120622861.9U patent/CN214993806U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114737566A (en) * | 2022-05-12 | 2022-07-12 | 青岛理工大学 | Pre-tightening force applying device and method for large-diameter pre-tensioned glass fiber rib anti-floating anchor rod |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111608415B (en) | Square steel tube concrete column reinforcing method based on high-ductility cement-based material | |
| CN108277887A (en) | Assembled built-in heat insulation layer concrete composite wall-light steel frame connecting node | |
| CN214993806U (en) | Non-metal anti-floating anchor rod structure system | |
| CN108643396A (en) | Assembled built-in heat insulation layer foamed concrete composite wall-light steel frame connecting node | |
| CN110067311B (en) | Connection structure and method for joint of new and old concrete members | |
| CN215166634U (en) | Assembly type building wallboard connecting structure | |
| CN111287366A (en) | Assembly process of sleeve type stone curtain wall without vertical keels | |
| CN100547181C (en) | The construction technology that the wooden frame structure main body is connected with concrete foundation | |
| CN113236006B (en) | Assembled concrete column connected node | |
| CN208105502U (en) | Assembled built-in heat insulation layer concrete composite wall-light steel frame connecting node | |
| CN109706925A (en) | A kind of tencel muscle anti-float anchor rod anchoring process | |
| CN104234302A (en) | Self-heat-preservation prefabricated outer wall board with frame net rack | |
| CN212336419U (en) | Assembled composite wall based on steel pipe | |
| CN206128281U (en) | Balcony board installation node | |
| CN207685984U (en) | A kind of overlength underground garage external wall structure | |
| CN204174826U (en) | A kind of precast wall panel with frame rack self-heat conserving | |
| CN105064411A (en) | Method for building post-pouring expansion reinforcing band of wallboard of underground structure | |
| CN105888282B (en) | A kind of seismic reinforcing structure and method that big hole is opened for transformer station's masonry wall | |
| CN206189456U (en) | Three cabin piping lanes | |
| CN206034624U (en) | Balcony installation node | |
| CN210507433U (en) | Novel fiber rib anti-floating anchor rod anchoring device | |
| CN102493595A (en) | Cast-in-place concrete core column ring beam house manufactured by light composite board and assembling method | |
| CN114411987A (en) | Light concrete insulation board embedded and installed and installation method thereof | |
| CN109706926A (en) | A kind of tencel muscle anti-float anchor rod anchor | |
| CN111749366A (en) | Steel pipe-based fabricated composite wall and construction method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |