CN116240886A - Device for assisting prestress anchor bolt assembly in adjusting concentricity and construction method - Google Patents
Device for assisting prestress anchor bolt assembly in adjusting concentricity and construction method Download PDFInfo
- Publication number
- CN116240886A CN116240886A CN202310158767.6A CN202310158767A CN116240886A CN 116240886 A CN116240886 A CN 116240886A CN 202310158767 A CN202310158767 A CN 202310158767A CN 116240886 A CN116240886 A CN 116240886A
- Authority
- CN
- China
- Prior art keywords
- concentricity
- steel wire
- steel
- anchor plate
- wire rope
- 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.)
- Pending
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
- E02D5/80—Ground anchors
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/44—Foundations for machines, engines or ordnance
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D35/00—Straightening, lifting, or lowering of foundation structures or of constructions erected on foundations
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The utility model provides a supplementary device of prestressing force crab-bolt sub-assembly adjustment concentricity, has solved present concentricity adjustment construction loaded down with trivial details, wastes time and energy, can not effectively realize prestressing force crab-bolt sub-assembly concentricity adjustment's problem fast. The device comprises a plurality of groups of pulling and fixing devices, wherein each pulling and fixing device comprises a steel wire rope, a tightener and a fixed steel drill rod, and the upper anchor plate is connected with the tightener through the steel wire rope. The concentricity of the anchor bolt assembly can be quickly adjusted by the application of the invention, if the adjustment by adopting the conventional method needs 4 people, the automobile crane is 1 station, the time is 4 hours, the concentricity adjustment can be completed within 30 minutes after adopting the novel scheme, and compared with the conventional method, the method has the advantages of small investment, high efficiency, high speed, cost saving and further reduction of the construction difficulty.
Description
Technical Field
The invention relates to the technical field of concentricity adjustment of prestressed anchor bolt assemblies, in particular to a device for assisting in adjusting concentricity of a prestressed anchor bolt assembly and a construction method.
Background
In recent years, along with the increasing electricity demand of people, clean energy sources such as hydropower, wind power, nuclear power and the like are widely popularized, and more large-scale power generation facilities are continuously emerging. The method for adjusting the concentricity of the prestressed anchor bolt assembly mainly comprises a method for installing and positioning a keel, a method for auxiliary adjustment of a crane and the like, and the method is complex in construction, time-consuming and labor-consuming and can not be used for quickly and effectively adjusting the concentricity of the prestressed anchor bolt assembly.
Disclosure of Invention
Aiming at the situation, in order to overcome the defects of the prior art, the invention provides a device for assisting the prestress anchor bolt assembly to adjust the concentricity and a construction method thereof, which effectively solve the problems that the existing concentricity adjustment construction is complicated, time and labor are wasted, and the concentricity adjustment of the prestress anchor bolt assembly cannot be realized quickly and effectively.
In order to achieve the above purpose, the technical scheme of the invention is as follows: the device comprises a plurality of groups of pulling and fixing devices, wherein each pulling and fixing device comprises a steel wire rope, a tightener and a fixed steel drill, and an upper anchor plate is connected with the fixed steel drill through the steel wire rope.
Preferably, the number of the steel wires is four, wherein three steel wires are distributed in a 120-degree included angle mode, and the fourth steel wires are arranged in the direction opposite to the offset direction of the anchor bolt assembly.
Preferably, the number of the fixed steel bars is four.
Preferably, the number of the tighteners is four, and the steel wire rope is connected with the fixed steel drill rod through the tighteners.
A construction method for assisting a prestress anchor bolt assembly to adjust concentricity comprises the following steps:
s1, installing the prestress anchor bolt assembly according to requirements, and determining the positions of the first three pulling and fixing devices according to the actual field after the installation is completed, so that the positions of the pulling and fixing devices are staggered with a fan foundation box transformer, a pedestrian passageway, a drainage passageway and the like;
s2, positioning a connecting point of a pulling and fixing device on an anchor plate by using a high-precision total station by a measurer according to the site determined azimuth, wherein three points are uniformly distributed according to an angle of 120 degrees;
s3, according to the connecting point of the pulling and fixing device defined by the upper anchor plate, fixing steel drill positions are defined at the periphery of the foundation pit by using a total station, and the three fixing steel drill positions are guaranteed to correspond to the positions of the connecting points of the three steel bars of the upper anchor plate one by one;
s4, driving the three steel bars into the soil body around the foundation according to the determined positions of the steel bars, and ensuring that the steel bars are safe and stable and have certain pulling resistance;
s5, connecting one end of the three steel wire ropes with the upper anchor plate according to the determined position, and connecting and fixing the other end of the three steel wire ropes with the fixed steel wires by using a tightener;
s6, after the connection of the steel wire ropes is completed, measuring the concentricity of the anchor plate by a measurer, and tensioning the three steel wire ropes to different degrees according to the measurement result;
s7, retesting the concentricity of the upper anchor plate and the lower anchor plate by a measurer, finding out the whole deflection direction of the anchor bolt cage, and determining a steel wire rope connection position on the upper anchor plate by using a total station according to the opposite direction of the whole deflection of the anchor bolt cage, and determining a fourth fixed steel drill position on the periphery of the foundation pit;
s8, driving a fourth steel drill rod into the determined point position, then connecting one end of a fourth steel wire rope with the upper anchor plate connecting point, and connecting the other end of the fourth steel wire rope with the fourth steel drill rod by using a tightener;
s9, slowly tensioning the steel wire rope after the fourth steel wire rope is connected, and continuously measuring the concentricity of the anchor plate by a measurer in the process of fastening the steel wire rope until the concentricity meets the requirement, and stopping fastening the steel wire rope;
and S10, after the concentricity adjustment of the anchor plate is finished, checking the connection of all the steel wire ropes, and ensuring the safety and the fastening effect of all the steel wire ropes.
Preferably, the method further comprises the following steps: and retesting the concentricity of the anchor plate after the installation of the reinforcing steel bars of the fan foundation and before the concrete pouring of the fan foundation is finished, if the concentricity deviation of the anchor plate is found, the steel wire ropes in the opposite directions of the deviation are timely adjusted, so that the concentricity of the anchor plate meets the requirement.
The concentricity of the anchor bolt assembly can be quickly adjusted by the application of the invention, if the adjustment by adopting the conventional method needs 4 people, the automobile crane is 1 station, the time is 4 hours, the concentricity adjustment can be completed within 30 minutes after adopting the novel scheme, and compared with the conventional method, the method has the advantages of small investment, high efficiency, high speed, cost saving and further reduction of the construction difficulty.
Drawings
FIG. 1 is a schematic diagram of a pulling and fastening device according to the present invention;
fig. 2 is a schematic plan view of the pulling and fixing device of the present invention.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic views illustrating the basic structure of the present invention by way of illustration only, and thus show only the constitution related to the present invention.
As shown in fig. 1-2, a device for assisting in adjusting concentricity of a prestressed anchor bolt assembly comprises a plurality of groups of pulling and fixing devices, wherein each pulling and fixing device comprises a steel wire rope 2, a tightener 3 and a fixing steel drill 4, and an upper anchor plate 1 is connected with the tightener 3 through the steel wire rope 2 and the fixing steel drill 4.
The number of the steel wire ropes 2 is four, wherein three steel wire ropes 2 are distributed in a 120-degree included angle mode, and the fourth steel wire rope 2 and the deflection direction of the anchor bolt assembly are arranged in the opposite direction.
The wire rope 2 serves to connect the anchor plate 1 and the fixing drill 4 on the anchor bolt assembly.
The number of the fixed steel bars 4 is four.
The arrangement of the fixed steel drills 4 is matched with the position of the steel wire rope 2, and the fixed steel drills are used for fixing.
The number of the tighteners 3 is four, and the steel wire ropes 2 are connected with the fixed steel drills 4 through the tighteners 3.
The function of the tightener 3 is to adjust the direction of the anchor assembly.
A construction method for assisting a prestress anchor bolt assembly to adjust concentricity comprises the following steps:
s1, installing the prestress anchor bolt assembly according to requirements, and determining the positions of the first three pulling and fixing devices according to the actual field after the installation is completed, so that the positions of the pulling and fixing devices are staggered with a fan foundation box transformer, a pedestrian passageway, a drainage passageway and the like;
s2, positioning a pulling and fixing device connecting point on the anchor plate 1 by using a high-precision total station by a measurer according to the site determined azimuth, wherein the three points are uniformly distributed according to an angle of 120 degrees;
s3, according to the connecting points of the pulling and fixing device fixed by the upper anchor plate 1, fixing steel bars 4 are fixed at the periphery of the foundation pit by using a total station, and the positions of the three fixing steel bars 4 are guaranteed to correspond to the positions of the connecting points of the three steel bars of the upper anchor plate 1 one by one;
s4, driving the three steel bars into the soil body around the foundation according to the determined positions of the steel bars, and ensuring that the steel bars are safe and stable and have certain pulling resistance;
s5, connecting one end of three steel wire ropes 2 with the upper anchor plate 1 according to the determined position, and connecting and fixing the other end of the three steel wire ropes with the fixed steel drill 4 by using a tightener 3;
s6, after the connection of the steel wire ropes 2 is completed, measuring personnel perform concentricity measurement of the anchor plate, and tensioning the three steel wire ropes 2 to different degrees according to the measurement result;
s7, retesting the concentricity of the upper anchor plate and the lower anchor plate by a measurer, finding out the whole deflection direction of the anchor bolt cage, and determining the connection position of the steel wire rope 2 on the upper anchor plate 1 by using a total station according to the opposite direction of the whole deflection of the anchor bolt cage, and determining the position of a fourth fixed steel drill 4 on the periphery of the foundation pit;
s8, driving a fourth steel drill rod into the determined point position, then connecting one end of a fourth steel wire rope 2 with the connecting point of the upper anchor plate 1, and connecting the other end of the fourth steel wire rope with the fourth steel drill rod by using a tightener 3;
s9, slowly tensioning the steel wire rope 2 after the fourth steel wire rope 2 is connected, and continuously measuring the concentricity of the anchor plate by a measurer in the process of fastening the steel wire rope 2 until the concentricity meets the requirement, and stopping fastening the steel wire rope 2;
and S10, after the concentricity adjustment of the anchor plate is finished, checking the connection of all the steel wire ropes 2, and ensuring the safety and the fastening effect of all the steel wire ropes 2.
The method also comprises the following steps: and retesting the concentricity of the anchor plate after the installation of the reinforcing steel bars of the fan foundation and before the concrete pouring of the fan foundation is finished, if the concentricity deviation of the anchor plate is found, the steel wire ropes 2 in the opposite directions of the deviation are timely adjusted, so that the concentricity of the anchor plate meets the requirement.
The second-stage project of the palace wind farm is positioned in the Xingan county of Guangxi Zhuang autonomous region Guilin, the total installed capacity of the project is 80MW, 20 fans with single-machine capacity of 4W are contained, fan foundations are all in the form of prestress anchor bolt assemblies, three fixed steel bars 4 are distributed on the outer sides of excavation sides of a foundation pit after the prestress anchor bolt assemblies are installed, the fixed steel bars 4 are uniformly distributed along the periphery of the foundation pit at an angle of 120 degrees, after the steel bars are distributed, the upper anchor plate 1 and the fixed steel bars 4 are connected, after the connection is completed, the tightener 3 is used for pre-fastening, the high-precision total station is used for carrying out concentricity retesting, the offset direction of the assemblies is found out according to retesting results, a fourth pulling and fixing device is distributed in the opposite direction, and the concentricity is adjusted by the fourth pulling and fixing device.
After the anchor bolt assembly is installed, three pulling and fixing devices are arranged at the upper part of the upper anchor plate 1 in a 120-degree included angle mode, the fourth direction is opposite to the offset direction of the assembly, concentricity is adjusted, the three pulling and fixing devices are fastened first, the offset direction is adjusted by the fourth pulling and fixing device, and the concentricity can be adjusted rapidly.
The application of the invention can realize the rapid adjustment of the concentricity of the prestressed anchor bolt assembly, and the use method is convenient, can save manpower and material resources, is safe and reliable, has high speed and saves construction cost.
The examples are given solely for the purpose of clarity of illustration and are not intended to be limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (6)
1. The device for assisting the prestress anchor bolt assembly to adjust the concentricity is characterized by comprising a plurality of groups of pulling and fixing devices, wherein each pulling and fixing device comprises a steel wire rope, a tightener and a fixed steel drill rod, and an upper anchor plate is connected with the fixed steel drill rod through the steel wire rope.
2. The apparatus for assisting in the adjustment of concentricity of a prestressed anchor assembly as claimed in claim 1, wherein the number of said wires is four, three of which are disposed at an angle of 120 ° and a fourth of which is disposed in a direction opposite to the direction of deflection of the anchor assembly.
3. The apparatus for assisting in adjusting concentricity of a prestressed anchor assembly as set forth in claim 1, wherein the number of said fixed steel wires is four.
4. The device for assisting in adjusting concentricity of a prestressed anchor assembly according to claim 1, wherein the number of tighteners is four, and the wire rope is connected with the fixed steel drill by using tighteners.
5. A construction method using the apparatus of claim 1, comprising the steps of:
s1, installing the prestress anchor bolt assembly according to requirements, and determining the positions of the first three pulling and fixing devices according to the actual field after the installation is completed, so that the positions of the pulling and fixing devices are staggered with a fan foundation box transformer, a pedestrian passageway, a drainage passageway and the like;
s2, positioning a connecting point of a pulling and fixing device on an anchor plate by using a high-precision total station by a measurer according to the site determined azimuth, wherein three points are uniformly distributed according to an angle of 120 degrees;
s3, according to the connecting point of the pulling and fixing device defined by the upper anchor plate, fixing steel drill positions are defined at the periphery of the foundation pit by using a total station, and the three fixing steel drill positions are guaranteed to correspond to the positions of the connecting points of the three steel bars of the upper anchor plate one by one;
s4, driving the three steel bars into the soil body around the foundation according to the determined positions of the steel bars, and ensuring that the steel bars are safe and stable and have certain pulling resistance;
s5, connecting one end of the three steel wire ropes with the upper anchor plate according to the determined position, and connecting and fixing the other end of the three steel wire ropes with the fixed steel wires by using a tightener;
s6, after the connection of the steel wire ropes is completed, measuring the concentricity of the anchor plate by a measurer, and tensioning the three steel wire ropes to different degrees according to the measurement result;
s7, retesting the concentricity of the upper anchor plate and the lower anchor plate by a measurer, finding out the whole deflection direction of the anchor bolt cage, and determining a steel wire rope connection position on the upper anchor plate by using a total station according to the opposite direction of the whole deflection of the anchor bolt cage, and determining a fourth fixed steel drill position on the periphery of the foundation pit;
s8, driving a fourth steel drill rod into the determined point position, then connecting one end of a fourth steel wire rope with the upper anchor plate connecting point, and connecting the other end of the fourth steel wire rope with the fourth steel drill rod by using a tightener;
s9, slowly tensioning the steel wire rope after the fourth steel wire rope is connected, and continuously measuring the concentricity of the anchor plate by a measurer in the process of fastening the steel wire rope until the concentricity meets the requirement, and stopping fastening the steel wire rope;
and S10, after the concentricity adjustment of the anchor plate is finished, checking the connection of all the steel wire ropes, and ensuring the safety and the fastening effect of all the steel wire ropes.
6. A method of construction according to claim 5, further comprising the steps of: and retesting the concentricity of the anchor plate after the installation of the reinforcing steel bars of the fan foundation and before the concrete pouring of the fan foundation is finished, if the concentricity deviation of the anchor plate is found, the steel wire ropes in the opposite directions of the deviation are timely adjusted, so that the concentricity of the anchor plate meets the requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310158767.6A CN116240886A (en) | 2023-02-24 | 2023-02-24 | Device for assisting prestress anchor bolt assembly in adjusting concentricity and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310158767.6A CN116240886A (en) | 2023-02-24 | 2023-02-24 | Device for assisting prestress anchor bolt assembly in adjusting concentricity and construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116240886A true CN116240886A (en) | 2023-06-09 |
Family
ID=86634634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310158767.6A Pending CN116240886A (en) | 2023-02-24 | 2023-02-24 | Device for assisting prestress anchor bolt assembly in adjusting concentricity and construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116240886A (en) |
-
2023
- 2023-02-24 CN CN202310158767.6A patent/CN116240886A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8307593B2 (en) | Tower with adapter section | |
| US11555480B2 (en) | Prestressed-bolted dry-assembled segmental precast hybrid tower with grouting-free | |
| US20110138704A1 (en) | Tower with tensioning cables | |
| CN109403396B (en) | Horizontal and upward pulling combined loading device and method for pile foundation model test | |
| EP2918751B1 (en) | Support structure for wind turbines and mould for manufacturing such structures | |
| US20110061321A1 (en) | Fatigue reistant foundation system | |
| BRPI1101612B1 (en) | Construction method of a hybrid tower | |
| KR20110004797A (en) | Modular surface foundation for wind turbine space frame towers | |
| CN111424822A (en) | Support-free construction method for annular large cantilever cable bearing grid structure | |
| CN112412707B (en) | Circular section concrete supporting structure of assembled wind turbine generator system | |
| Selvaraj et al. | Performance analysis of a overhead power transmission line tower using polymer composite material | |
| US9175492B2 (en) | Wind generator tower and process for assembly thereof | |
| CN115306645B (en) | Wind power generation concrete tower barrel installation construction method | |
| CN110468869B (en) | Reinforcing structure and method for P & H type rock anchor rod fan foundation | |
| CN108223294B (en) | Application method of prestress penetrating rib and anchor bolt leveling device for high altitude of concrete tower drum | |
| MX2007009456A (en) | Pre-stressed concrete tower for wind power generators. | |
| CN213392499U (en) | Grouting-free dry-type prestressed bolt splicing and slicing prefabricated assembly type mixed tower | |
| CN201401040Y (en) | Concrete precast balance weight for mobile communication antenna holding pole | |
| CN116240886A (en) | Device for assisting prestress anchor bolt assembly in adjusting concentricity and construction method | |
| CN113404199B (en) | Installation method of umbrella-shaped roof structure | |
| CN115807508A (en) | Construction method and node for building steel structure column base installation foundation | |
| CN205936983U (en) | A external prestress concrete tower section of thick bamboo | |
| CN209779668U (en) | Two unification pile foundations of heliostat stand and basis | |
| CN203939040U (en) | A kind of tower foundation for wind-power electricity generation precast concrete pylon | |
| CN113047333A (en) | Land flood control fan foundation structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |