CN107574819B - It is a kind of high intensity major diameter prestressing force sill anchor and its production construction method - Google Patents
It is a kind of high intensity major diameter prestressing force sill anchor and its production construction method Download PDFInfo
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- CN107574819B CN107574819B CN201710610580.XA CN201710610580A CN107574819B CN 107574819 B CN107574819 B CN 107574819B CN 201710610580 A CN201710610580 A CN 201710610580A CN 107574819 B CN107574819 B CN 107574819B
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Abstract
The present invention discloses a kind of high-intensitive major diameter prestressing force sill anchor and its production construction method, with anchor pole, the lower end forging and stamping of the anchor pole have the lower jumping-up section of radial dimension thickening, the pre-buried anchor slab in the lower basis jumping-up Duan Weiyu makees the jumping-up construction section of verticality installation, and rolling has the screw thread being fastenedly connected with the pre-buried anchor slab in basis on the jumping-up construction section；The length of the lower jumping-up section is 270-300mm, and the size of radial thickening is 10-15mm；Gasket and double nut are arranged in lower jumping-up section；The anchor pole is made using 35CrMo structural alloy steel, and anchor pole is equipped with anchor pole elevation line.Making construction method includes corresponding production and construction procedure.High intensity major diameter prestressing force sill anchor of the invention can solve high-intensitive major diameter prestressing force sill anchor common quality defect problem present in routinely production, there is great economic benefit.It can be used as the production and popularization and reference of the high-intensitive major diameter prestressing force sill anchor such as high level, Super High Heavy Type Steel Structure, water conservancy gate.
Description
The application be to application No. is " 201510453841.2 ", the applying date be on 07 29th, 2015, application it is entitled
The divisional application that " a kind of novel feet anchor bolt and its moulding process " proposes.
Technical field
The invention belongs to building facility field, it is related to a kind of sill anchor molding making and construction field, more particularly to high
Layer, Super High, Heavy Type Steel Structure building, the high-intensitive major diameter prestressing force sill anchor and its production on large-scale water conservancy gate basis
Construction method.
Background technique
In recent years, steel building (especially high-rise, Super High Heavy Type Steel Structure building, large-scale water conservancy gate basis etc.
It is more and more, and increasingly develop towards large span, Super High labyrinth direction, in high-rise, Super High Heavy Type Steel Structure
In building, large-scale water conservancy gate foundation structure), direction more and more new and original towards high-intensitive major diameter prestressing force in design
Development, therefore bring the production difficulty of construction of steel construction high intensity major diameter prestressed ground foot bolt increasing, make precision
More and more inaccurate, production construction cost is higher and higher, and production construction period is increasingly longer.Existing high intensity major diameter is answered in advance
1., specification it is main that power foundation bolt makes construction method step are as follows: blanking, sawing, tapping, there are following some problems:
Examine screw thread geometric dimension less than normal, hardness, plasticity, physics, chemical property are not reached requirement or wanted lower than related specifications standard
It asks；2., tapping when because not carrying out local heating, end thread geometric dimension is less than normal, and process time is too long, and labor intensity is high, effect
Rate is low, and production construction cost is higher etc..
Sill anchor is in application, sill anchor and anchor slab need to carry out plug welding seam welding, workshop manufacture craft when assembling at present
It is complicated, production process is more, when erection welding, can generate thermal stress irregular deformation, and the verticality of foundation bolt bar and anchor slab can not
Guarantee also needs to carry out flame straightening, and pre-buried site operation lower margin is loose mail fabrication and installation, and large labor intensity, production efficiency is low, throws
Enter horizontal plane degree that is at high cost and can't guaranteeing foundation bolt bar and geometric accuracy.
In view of above existing high-intensitive major diameter prestressed ground foot bolt common quality defect and system present in production construction
Make the higher problem of construction cost and difficulty, it is necessary to propose a kind of simple and easy high-intensitive major diameter prestressing force sill anchor and
It makes construction method.
Summary of the invention
The purpose of the present invention is to provide a kind of high-intensitive major diameter prestressing force sill anchor and its construction method is made, at
Type simple process, the molding sill anchor precision of institute is high, anchor bolt is high-quality, easy for construction, economical rationality, safe and reliable, brings
Recruitment cost is few, labor intensity is low, high efficient construction, there is great economic benefit.
In order to achieve the above objectives, solution of the invention is:
A kind of high intensity major diameter prestressing force sill anchor, has anchor pole, and the lower end forging and stamping of the anchor pole have radial dimension
The lower jumping-up section of thickening, the pre-buried anchor slab in the lower basis jumping-up Duan Weiyu make the jumping-up construction section of verticality installation, jumping-up installation
Rolling has the screw thread being fastenedly connected with the pre-buried anchor slab in basis in section；The length of the lower jumping-up section is 270-300mm, radial thickening
Size be 10-15mm；Gasket and double nut are arranged in lower jumping-up section；The anchor pole is made of 35CrMo structural alloy steel
It forms, anchor pole is equipped with anchor pole elevation line；The forging and stamping jumping-up temperature of the lower jumping-up section controls the jumping-up between 300-600 DEG C
Quenching and tempering heat treatment are made to anchor pole blank after rolled thread on construction section, by anchor pole blank heating to 850-1000 when quenching
DEG C and keep the temperature 3-4h；Blank is placed in the sufficiently strong strength air-blast quenching medium of cooling capacity after heat preservation defrosting；After the completion of quenching
It is tempered, the anchor pole blank heating after quenching treatment to 400-500 DEG C and is kept the temperature into 4-5h, it is cold that room temperature is carried out after heat preservation
But.
The anchor pole is diameter 50mm specification, the radial dimension thickening of lower jumping-up section to 60mm；Anchor pole is diameter 75mm
Specification, the radial dimension thickening of lower jumping-up section to 90mm；Anchor pole is diameter 90mm specification, the radial dimension of lower jumping-up section
Thickening is to 105mm.
A kind of production construction method of high intensity major diameter prestressing force sill anchor, comprises the following steps that
1) high-intensitive major diameter prestressing force sill anchor is made:
1. carrying out forging and stamping jumping-up to the lower end of anchor pole blank, the lower end of forging and stamping is shaped to lower jumping-up section, forges and presses jumping-up
Temperature controls between 300-600 DEG C；The pre-buried anchor slab in the lower basis jumping-up Duan Weiyu makees the jumping-up construction section of verticality installation；Under
The length of jumping-up section is 270-300mm, and the size of radial thickening is 10-15mm；Anchor pole subscript sets upper bolt elevation line；
2. in rolling the screw thread for being fastenedly connected with the pre-buried anchor slab in basis in lower jumping-up section: will be after conducting forging processing
The connection of anchor pole blank, which is placed on thread rolling die, is processed, and by rolling molding pressure, makes anchor pole end using the plastic deformation of round steel
Thick portion divide spiral shell to form；
3. being heat-treated to anchor pole blank, which includes quenching and tempering；When quenching extremely by anchor pole blank heating
850-1000 DEG C and keep the temperature 3-4h；Blank is placed in the sufficiently strong strength air-blast quenching medium of cooling capacity after heat preservation defrosting；It quenches
It is tempered after the completion of fire, the anchor pole blank heating after quenching treatment to 400-500 DEG C and is kept the temperature into 4-5h, heat preservation terminates laggard
Row room temperature cooling；In being arranged upper cushion block and double nut in lower jumping-up section；
2) high-intensitive major diameter prestressing force sill anchor construction:
By high intensity major diameter prestressing force sill anchor made from step 1), pass through the screw thread of its lower end structure, cushion block
And double nut is threadably secured connection on the pre-buried anchor slab in basis, is then carried out by the middle part of built-in fitting and sill anchor bar
Two o'clock is connected at the positioning secure weld of a ray type, fully ensures that pre-buried ground bolt structure basis is carrying out concrete filling
Shi Buhui makes sill anchor bar geometric dimension occur positional shift, and height keeps geometric accuracy, then with 3 points of steel column bottom
Formula connection installation in line.
It 1) further include the early-stage preparations step of anchor pole blank before step by step 1. in the step, specifically: construction
Preparation → structural working drawing Deepen Design turns over sample → materials procurement → raw material admission examination → in-depth is turned over master drawing and issued → and goes out
Library neck material, the raw material that high-ranking military officer goes out are cut into required anchor pole blank by sawing machine sawing formula cutting machine according to anchor pole specification.
1) it in the step, is also carried out step by step 4. after step by step 1.: post-processing steps, specifically: anchor bolt structure
Part geometric dimension specification verification → anchor bolt warehousing finished products packaging → anchor bolt finished product storage → anchor bolt finished product outbound shipping → anchor bolt at
Product installation.
The anchor pole blank is diameter 50mm specification, the radial dimension thickening of lower jumping-up section to 60mm；Anchor pole blank is
Diameter 75mm specification, the radial dimension thickening of lower jumping-up section to 90mm；Anchor pole blank is diameter 90mm specification, lower jumping-up section
Radial dimension thickening to 105mm.
After adopting the above scheme, the high-intensitive major diameter prestressing force sill anchor of the present invention, forges into the lower end of anchor pole
Type has lower jumping-up section, and the deformation and metal when forging is processed due to component crystallize again, makes later large dendritic crystal and column crystal
Grain becomes that crystal grain is thinner, isometric recrystallized structure of uniform size, makes its plastic deformation of the end of anchor pole and mechanical property in this
It is greatly improved, hardness, plasticity, physics, chemical property can reach related specifications standard requirements, but also overcome end
The advantages such as screw thread geometric dimension problem less than normal, brings process time short, and labor intensity is low, high-efficient, and production construction cost is low.It is special
Not Shi He specialized, standardized production, it is pre- to can be used as the high intensity major diameter such as high level, Super High Heavy Type Steel Structure, water conservancy gate
The production and popularization and reference of stress sill anchor.
Further, the equal forging and forming of anchor pole upper and lower end parts has jumping-up section, first is that enhance the service performance of entire sill anchor,
Second is that lower end forging and stamping jumping-up section and rolling have screw thread, it is tight that screw thread can be used when this anchor pole is assembled with basic pre-buried anchor (mould) plate
Be solidly connected, so construction when overcome loose mail fabrication and installation bring defect, the verticality of foundation bolt bar and anchor slab can obtain
To guarantee, it just can fully ensure that pre-buried ground bolt structure basis will not make foundation bolt bar when carrying out concrete filling in this
Positional shift occurs for geometric dimension, can highly keep geometric accuracy, convenient for the connection installation of steel column bottom.I.e. horizontal plane and hang down
Face directly, anchor pole geometric accuracy can be fully guaranteed, input cost is few, high production efficiency, labor intensity are small, installation
Precision is high, speed of application is fast.
The present invention also proposes the production construction method of high-intensitive major diameter prestressing force sill anchor, first to anchor in molding making
The lower end of bar blank carries out forging and stamping jumping-up, the roll threading in lower jumping-up section, forges and processes by the process flow, due to structure
The deformation of part and metal crystallize again, so that later large dendritic crystal and columnar grain is become crystal grain thinner, of uniform size isometric
Recrystallized structure, the plastic deformation and mechanical property of blank are greatly improved.Hot place also further is carried out to sill anchor
Blank heating to 850-1000 DEG C and is kept the temperature 3-4h when quenching, so that blank internal temperature is uniformly reached unanimity, to be formed by reason
Blank is placed in the sufficiently strong hardening media of cooling capacity (strength is air-cooled) after heat preservation defrosting by tiny, uniform formula body crystal grain difficult to understand,
Its surface and internal temperature is reduced rapidly, martensite or bainite structure are obtained.Due to blank be quenched processing after its intensity,
Hardness increases substantially, but toughness is poor.To guarantee that the properties of blank reach requirement, also needed back after the completion of quenching
Fire, tempering use large-scale shaft furnace by the blank heating after quenching treatment to 400-500 DEG C and keep the temperature 4-5h, and heat preservation terminates laggard
Row room temperature cooling.The residual stress that blank generates when can be by quenching after tempering thoroughly removes, and prevents it from becoming
Shape, cracking phenomena.And hardness, intensity, plasticity and the toughness of material are readjusted, and service performance is fully achieved and wants
It asks.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of high-intensitive major diameter prestressing force sill anchor of the invention.
Label declaration
Jumping-up section 10 on anchor pole 1
Lower 11 screw thread 111 of jumping-up section
2 nut 3 of gasket.
Specific embodiment
This case is described in further detail with reference to the accompanying drawings and detailed description.
The present invention relates to a kind of high-intensitive major diameter prestressing force sill anchors, as shown in Figure 1, having anchor pole 1, the anchor pole 1
Lower end forging and stamping have the lower jumping-up section 11 of radial dimension thickening, which has screw thread 111.Preferably anchor pole 1
Upper end also form jumping-up section 10, on this in jumping-up section 10 rolling have screw thread.
The length of anchor pole 1 usually takes a length of 4500mm, and the length of the lower jumping-up section 11 is 270-300mm, specifically gives
The length of lower jumping-up section 11 is 300mm in embodiment.Further more, the size of the radial thickening of lower jumping-up section 11 is 10-15mm.Upper upsetting
Thick section 10 is similarly.Specifically, when anchor pole 1 is diameter 50mm specification, the radial dimension thickening of lower jumping-up section 11 to 60mm；
When anchor pole 1 is diameter 75mm specification, the radial dimension thickening of lower jumping-up section 11 to 90mm；When anchor pole is diameter 90mm specification
, the radial dimension thickening of lower jumping-up section 11 to 105mm.
The material of anchor pole 1 carries out raw material selection, warp according to highstrength prestressed anchor bolt design dimension specification, performance requirement
Performance comparison for several times generallys use the 35CrMo structural alloy steel (quenching and tempering steel) that performance is good, material is excellent.On anchor pole 1 also
Equipped with anchor pole elevation line 12.In addition, being arranged with gasket 2 and double nut 3 respectively in the lower jumping-up section 11 of anchor pole 1, acted on for installation.On
Jumping-up section 10 also can be similarly.
The forging and stamping jumping-up temperature of the lower jumping-up section 11 controls the rolled thread on jumping-up construction section between 300-600 DEG C
Quenching and tempering heat treatment are made to anchor pole blank after 111, anchor pole blank heating to 850-1000 DEG C and is kept the temperature into 3-4h when quenching；
Blank is placed in the sufficiently strong strength air-blast quenching medium of cooling capacity after heat preservation defrosting；It is tempered, will be quenched after the completion of quenching
Treated that anchor pole blank heating to 400-500 DEG C and keeps the temperature 4-5h for fire, carries out room temperature cooling after heat preservation.Upper jumping-up section
10 also can be similarly.
When construction, high-intensitive major diameter prestressing force sill anchor is existed by its lower end structure (screw thread, cushion block, double nut)
It is threadably secured connection on pre-buried anchor (mould) plate in basis, then passes through a kind of built-in fitting (circle of binding and fixing foundation bolt bar
Steel wire rod structure aid materials) and sill anchor bar in the middle part of be positioned and fastened welded connecting (two o'clock is at a ray principle),
It thus can fully ensure that pre-buried ground bolt structure basis will not make foundation bolt bar dimensioning when carrying out concrete filling
Very little generation positional shift, can highly keep geometric accuracy, convenient for steel column bottom connection installation (3 points in line mathematics it is several
What learns principle), it is that the height organic unity of point, line, surface combines, horizontal plane and vertical plane, anchor pole geometric accuracy can
It is fully guaranteed, also avoids the problem that pre-buried anchor (mould) plate needs temporarily to do expanding treatment.In this, input cost is few, produces
It is high-efficient, labor intensity is small, installation accuracy is high, speed of application is fast.
The present invention also proposes a kind of production construction method of high-intensitive major diameter prestressing force sill anchor, includes following step
It is rapid:
1) high-intensitive major diameter prestressing force sill anchor is made:
1. carrying out forging and stamping jumping-up to the lower end of anchor pole blank, the lower end of forging and stamping is shaped to lower jumping-up section, forges and presses jumping-up
Temperature controls between 300-600 DEG C；Preferably, forging and stamping jumping-up processing also is carried out to the upper end of anchor pole blank；Also in anchor pole
Subscript sets upper bolt elevation line；
Specifically, it will be placed on the forging equipment of 700~1500t by the molding anchor pole blank of sawing and carry out end
Jumping-up is locally forged and pressed in end, and the length L of jumping-up section is 270-300mm (L=300mm in specific embodiment), and jumping-up temperature is stringent
Control is between 300-600 DEG C (preferred embodiment has 450 DEG C, 550 DEG C)；
For the size Control of its radial thickening of lower jumping-up section in 10-15mm, the jumping-up time is full according to different size anchor pole blank
The requirement of the corresponding jumping-up geometry thickening diameter of foot is given；When anchor pole blank is ￠ 50mm specification, the radial dimension of lower jumping-up section
Thickening is to ￠ 60mm；When anchor pole blank is ￠ 75mm specification, the radial dimension thickening of lower jumping-up section to ￠ 90mm；When anchor pole base
Material is ￠ 90mm specification, the radial dimension thickening of lower jumping-up section to ￠ 105mm；
2. in roll threading in jumping-up section；Anchor pole blank connection after conducting forging processing is placed on thread rolling die and is added
Work makes the thick portion of anchor pole end that spiral shell be divided to form by rolling molding pressure using the plastic deformation of round steel.
3. being heat-treated to anchor pole blank, which includes quenching and tempering；When quenching extremely by anchor pole blank heating
850-1000 DEG C and keep the temperature 3-4h；It is tempered after the completion of quenching, by the anchor pole blank heating after quenching treatment to 400-500 DEG C
And 4-5h is kept the temperature, room temperature cooling is carried out after heat preservation；Later in being arranged upper cushion block and double nut in lower jumping-up section.It is specific and
Speech, by 2. the anchor pole of thread forming is placed in large-scale well formula rich and influential family of overflowing and quenches step by step, by anchor pole blank heating when quenching
To 850-1000 DEG C and keep the temperature 3-4h (preferred embodiment is heated to 850,900,950,1000 degree, respectively keep the temperature 3,3.3,
3.7,4 hours), so that blank internal temperature is uniformly reached unanimity, to form tiny, uniform formula body crystal grain difficult to understand, heat preservation is thawed
Blank is placed in the sufficiently strong hardening media of cooling capacity (strength is air-cooled) afterwards, its surface and internal temperature is reduced rapidly, obtains
To martensite or bainite structure.Its intensity, hardness increase substantially after being quenched processing due to blank, but toughness is poor.For
Guarantee that the properties of blank reach requirement, also need to be tempered after the completion of quenching, tempering will be at quenching using large-scale shaft furnace
Blank heating after reason to 400-500 DEG C and keep the temperature 4-5h (preferred embodiment is heated to 400,450,500 degree, keep the temperature 4 respectively,
4.5,5 hours), room temperature cooling is carried out after heat preservation.The residual that blank generates when can be by quenching after tempering is answered
Power thoroughly removes, and prevents it from deforming, cracking phenomena.And hardness, intensity, plasticity and the toughness of material have obtained again
Service performance requirement is fully achieved in adjustment.Upper jumping-up section 10 also can be similarly.
2) high-intensitive major diameter prestressing force sill anchor construction:
By high intensity major diameter prestressing force sill anchor made from step 1), pass through the screw thread of its lower end structure, cushion block
And double nut is threadably secured connection on the pre-buried anchor slab in basis, is then carried out by the middle part of built-in fitting and sill anchor bar
Two o'clock is connected at the positioning secure weld of a ray type, fully ensures that pre-buried ground bolt structure basis is carrying out concrete filling
Shi Buhui makes sill anchor bar geometric dimension occur positional shift, and height keeps geometric accuracy, then with 3 points of steel column bottom
Formula connection installation in line.It is the height organic unity combination of point, line, surface, horizontal plane and vertical plane, anchor pole geometric dimension essence
Degree can be fully guaranteed, and also avoid the problem that pre-buried anchor (mould) plate needs temporarily to do expanding treatment.In this, input cost
Less, high production efficiency, labor intensity are small, installation accuracy is high, speed of application is fast.
It 1) further include the early-stage preparations step of anchor pole blank before step by step 1. in the step, specifically: construction
Preparation → structural working drawing Deepen Design turns over sample → materials procurement → raw material admission examination → in-depth is turned over master drawing and issued → and goes out
Library neck material, the raw material that high-ranking military officer goes out are cut into required anchor pole blank by the cutting of sawing machine sawing formula according to anchor pole specification.
1) it in the step, is also carried out step by step 4. after step by step 1.: post-processing, specifically: anchor bolt component geometric dimension rule
Lattice verify (inspection of anchor bolt technical parameter, anchor bolt mechanical performance test, anchor bolt component chemical composition analysis) → anchor bolt warehousing finished products
Packaging → anchor bolt finished product storage → anchor bolt finished product outbound shipping → anchor bolt finished product installation etc..
Highstrength prestressed anchor bolt examination is broadly divided into dimensions inspection, mechanical performance test, chemical component inspection.By
In no special acceptance specification as reference, highstrength prestressed anchor bolt is needed in the practical course of receiving with reference to all multiclass of country
Like specification.Main Specification prestressed bolt has GB/T 702-86, and " hot rolled circular steel and square steel size, shape, weight and permission are inclined
Difference ", GB/T 10120-1996 " metal stresses relaxation test method ", GB6397-86 " metal tensile test test sample ",
GB228-87 " metal tensile test method ", Gb/T111-1997 " steel bar for prestressed concrete ", GB2103-88 " test by steel wire
Receive, packaging, mark and certificate of quality general provision ", ASTMAT22 " the uncoated high strength cast iron of prestressed concrete ", GB/
T3077-1999 " structural alloy steel ", GB/T50205-2001 " code for acceptance of construction quality of steel structures ", GB/T3098.1-
2000 " fastener mechanical performance bolt, screw and studs ", GB/T222-2006 " chemical composition of steel " regulation etc. execute.
And its scantling specification is examined, mooring rod technique parameter, component mechanical performance test-its high-strength prestress anchor pole
Mechanical performance technical requirements, composition chemical composition analysis-examined by chemical component technical requirements of high-strength prestress anchor pole etc.
Analysis is surveyed, the related content requirement of above-mentioned regulation is reached or surmount.
High intensity major diameter prestressing force sill anchor and respective production construction method of the invention, especially suitable for high-rise, super
High level, Heavy Type Steel Structure, water resources dam gate etc..A kind of high intensity major diameter prestressed ground made by technique through the invention
Foot anchor bolt is with short production cycle, production machining accuracy is high, site operation speed block, recruitment cost is few, labor intensity is low, production efficiency
High, its quality and various performances (anchor pole geometric dimension specifications parameter, mooring rod technique parameter, component mechanical performance test, componentization
Learn constituent analysis etc.) meet or largely surmount existing country and industry relevant criterion.Present invention process is simple, construction party
Just, economical rationality, safe and reliable, precision height, anchor bolt are high-quality, and energy overall settlement high intensity major diameter prestressing force sill anchor exists
Common quality defect problem present in conventional production, there is great economic benefit.It is particularly suitable for specialized, standardized production, can makees
For the high-intensitive major diameter prestressing force sill anchor such as high level, Super High Heavy Type Steel Structure, water conservancy gate production and popularization and
It uses for reference.
The above description is only a preferred embodiment of the present invention, all equivalent changes done with scope of the invention as claimed and
Modification, should belong to the range of the claims in the present invention.
Claims (6)
1. a kind of high intensity major diameter prestressing force sill anchor, it is characterised in that: there is anchor pole, the lower end forging and stamping of the anchor pole have
The lower jumping-up section of radial dimension thickening, the pre-buried anchor slab in the lower basis jumping-up Duan Weiyu make the jumping-up construction section of verticality installation, should
Rolling has the screw thread being fastenedly connected with the pre-buried anchor slab in basis on jumping-up construction section；The length of the lower jumping-up section is 270-300mm,
The size of radial thickening is 10-15mm；Gasket and double nut are arranged in lower jumping-up section；The anchor pole uses 35CrMo alloy knot
Structure steel is made, and anchor pole is equipped with anchor pole elevation line；The lower jumping-up section forging and stamping jumping-up temperature control 300-600 DEG C it
Between, quenching and tempering heat treatment are made to anchor pole blank after rolled thread on jumping-up construction section, when quenching extremely by anchor pole blank heating
850-1000 DEG C and keep the temperature 3-4h；Blank is placed in the sufficiently strong strength air-blast quenching medium of cooling capacity after heat preservation defrosting；It quenches
It is tempered after the completion of fire, the anchor pole blank heating after quenching treatment to 400-500 DEG C and is kept the temperature into 4-5h, heat preservation terminates laggard
Row room temperature cooling.
2. a kind of high-intensitive major diameter prestressing force sill anchor as described in claim 1, it is characterised in that: when anchor pole is diameter
50mm specification, the radial dimension thickening of lower jumping-up section to 60mm；When anchor pole is diameter 75mm specification, the radial direction of lower jumping-up section
Size thickening is to 90mm；When anchor pole is diameter 90mm specification, the radial dimension thickening of lower jumping-up section to 105mm.
3. a kind of production construction method of high intensity major diameter prestressing force sill anchor, it is characterised in that: comprise the following steps that
1) high-intensitive major diameter prestressing force sill anchor is made:
1. carrying out forging and stamping jumping-up to the lower end of anchor pole blank, the lower end of forging and stamping is shaped to lower jumping-up section, forges and presses jumping-up temperature
Control is between 300-600 DEG C；The pre-buried anchor slab in the lower basis jumping-up Duan Weiyu makees the jumping-up construction section of verticality installation；Lower jumping-up
The length of section is 270-300mm, and the size of radial thickening is 10-15mm；Anchor pole subscript sets upper bolt elevation line；
2. in rolling the screw thread for being fastenedly connected with the pre-buried anchor slab in basis in lower jumping-up section: by the anchor pole after conducting forging processing
Blank connection, which is placed on thread rolling die, is processed, and by rolling molding pressure, makes the thick of anchor pole end using the plastic deformation of round steel
The molding of part spiral shell；
3. being heat-treated to anchor pole blank, which includes quenching and tempering；By anchor pole blank heating to 850- when quenching
1000 DEG C and keep the temperature 3-4h；Blank is placed in the sufficiently strong strength air-blast quenching medium of cooling capacity after heat preservation defrosting；It has quenched
It is tempered after, the anchor pole blank heating after quenching treatment to 400-500 DEG C and is kept the temperature into 4-5h, carried out after heat preservation normal
Temperature is cooling；In being arranged upper cushion block and double nut in lower jumping-up section；
2) high-intensitive major diameter prestressing force sill anchor construction:
By high intensity major diameter prestressing force sill anchor made from step 1), pass through the screw thread of its lower end structure, cushion block and double
Nut is threadably secured connection on the pre-buried anchor slab in basis, then carries out two o'clock by the middle part of built-in fitting and sill anchor bar
It is connected at the positioning secure weld of a ray type, fully ensures that pre-buried ground bolt structure basis when carrying out concrete filling not
It can make sill anchor bar geometric dimension that positional shift occur, height keeps geometric accuracy, then with 3 points of steel column bottom at one
Linear connection installation.
4. a kind of production construction method of high-intensitive major diameter prestressing force sill anchor as claimed in claim 3, feature exist
In: 1) it further include the early-stage preparations step of anchor pole blank before step by step 1. in the step, specifically: preparation of construction →
Structural working drawing Deepen Design turn over sample → materials procurement → raw material admission examination → in-depth turn over master drawing issue → outbound neck material,
The raw material that high-ranking military officer goes out are cut into required anchor pole blank by sawing machine sawing formula cutting machine according to anchor pole specification.
5. a kind of production construction method of high-intensitive major diameter prestressing force sill anchor as claimed in claim 3, feature exist
In: 1) in the step, also carried out step by step 4. after step by step 1.: post-processing steps, specifically: anchor bolt component geometry
Dimensions verification → anchor bolt warehousing finished products packaging → anchor bolt finished product storage → anchor bolt finished product outbound shipping → anchor bolt finished product installation
Construction.
6. a kind of production construction method of high-intensitive major diameter prestressing force sill anchor as claimed in claim 3, feature exist
In: the anchor pole blank be diameter 50mm specification, the radial dimension thickening of lower jumping-up section to 60mm；Anchor pole blank is diameter
75mm specification, the radial dimension thickening of lower jumping-up section to 90mm；Anchor pole blank is diameter 90mm specification, the diameter of lower jumping-up section
To size thickening to 105mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710610580.XA CN107574819B (en) | 2015-07-29 | 2015-07-29 | It is a kind of high intensity major diameter prestressing force sill anchor and its production construction method |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710610580.XA CN107574819B (en) | 2015-07-29 | 2015-07-29 | It is a kind of high intensity major diameter prestressing force sill anchor and its production construction method |
| CN201510453841.2A CN105155567B (en) | 2015-07-29 | 2015-07-29 | A kind of novel feet crab-bolt and its moulding process |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510453841.2A Division CN105155567B (en) | 2015-07-29 | 2015-07-29 | A kind of novel feet crab-bolt and its moulding process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107574819A CN107574819A (en) | 2018-01-12 |
| CN107574819B true CN107574819B (en) | 2019-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510453841.2A Active CN105155567B (en) | 2015-07-29 | 2015-07-29 | A kind of novel feet crab-bolt and its moulding process |
| CN201710610580.XA Active CN107574819B (en) | 2015-07-29 | 2015-07-29 | It is a kind of high intensity major diameter prestressing force sill anchor and its production construction method |
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| CN105863696A (en) * | 2016-05-17 | 2016-08-17 | 太原理工大学 | Corrugated anchored rod device high in strength and large in deformation |
| CN106363360B (en) * | 2016-11-03 | 2018-09-18 | 山西太钢不锈钢股份有限公司 | A method of screw thread is processed to the end of stainless steel rebar |
| CN112846642A (en) * | 2019-11-12 | 2021-05-28 | 昆山市明开精密电子五金有限公司 | Machining process of special-shaped nut applied to electronic equipment |
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| CN201439590U (en) * | 2009-05-14 | 2010-04-21 | 巨力索具股份有限公司 | High-strength anchor rod |
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| US8894329B1 (en) * | 2013-05-31 | 2014-11-25 | Climb Tech, LLC. | Wedge anchor bolt |
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| CN2291504Y (en) * | 1997-03-20 | 1998-09-16 | 中国矿业大学 | Reinforced anchor rod |
| JP2000144320A (en) * | 1998-11-10 | 2000-05-26 | Kawasaki Steel Corp | Deformed bar steel for reinforcing bar and its production |
| CN2382841Y (en) * | 1999-07-19 | 2000-06-14 | 中国矿业大学（北京校区） | Metal thick tail anchor rod |
| CN2533267Y (en) * | 2001-12-15 | 2003-01-29 | 汪德洪 | Combined anchor bolt |
| CN201439590U (en) * | 2009-05-14 | 2010-04-21 | 巨力索具股份有限公司 | High-strength anchor rod |
| CN101760692A (en) * | 2010-01-14 | 2010-06-30 | 河北豪特耐磨材料有限公司 | Ultrahigh chromium cast grinding ball and heat treatment process thereof |
| CN202628134U (en) * | 2012-05-22 | 2012-12-26 | 山东科技大学 | High-strength metallic thick-tail yielding anchor rod |
| CN203021997U (en) * | 2012-10-30 | 2013-06-26 | 巨力索具股份有限公司 | High strength light circle anchor lever |
| CN203742638U (en) * | 2014-01-16 | 2014-07-30 | 湖南科技大学 | Anchoring and energy-absorbing anchor-rod device used for controlling deep rock mass |
Also Published As
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| CN107574819A (en) | 2018-01-12 |
| CN105155567B (en) | 2017-09-05 |
| CN105155567A (en) | 2015-12-16 |
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