CN107473054A - Construction elevator building method for building construction - Google Patents
Construction elevator building method for building construction Download PDFInfo
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- CN107473054A CN107473054A CN201710675832.7A CN201710675832A CN107473054A CN 107473054 A CN107473054 A CN 107473054A CN 201710675832 A CN201710675832 A CN 201710675832A CN 107473054 A CN107473054 A CN 107473054A
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- screw rod
- bar planting
- construction
- elevator
- planting screw
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- 238000010276 construction Methods 0.000 title claims abstract description 93
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000009435 building construction Methods 0.000 title abstract description 3
- 239000000853 adhesive Substances 0.000 claims abstract description 54
- 230000001070 adhesive effect Effects 0.000 claims abstract description 54
- 238000005553 drilling Methods 0.000 claims abstract description 43
- 238000009434 installation Methods 0.000 claims abstract description 13
- 210000003205 muscle Anatomy 0.000 claims description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 229910000831 Steel Inorganic materials 0.000 claims description 16
- 239000010959 steel Substances 0.000 claims description 16
- 230000002787 reinforcement Effects 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 13
- 238000004873 anchoring Methods 0.000 claims description 8
- 239000000428 dust Substances 0.000 claims description 7
- 238000007711 solidification Methods 0.000 claims description 7
- 230000008023 solidification Effects 0.000 claims description 7
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 238000002513 implantation Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims 1
- 239000004575 stone Substances 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 239000011150 reinforced concrete Substances 0.000 abstract 1
- 239000000725 suspension Substances 0.000 abstract 1
- 238000005457 optimization Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 238000005266 casting Methods 0.000 description 4
- 229910003460 diamond Inorganic materials 0.000 description 4
- 239000010432 diamond Substances 0.000 description 4
- 239000003292 glue Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000004566 building material Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000009416 shuttering Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/02—Guideways; Guides
- B66B7/023—Mounting means therefor
- B66B7/025—End supports, i.e. at top or bottom
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B11/00—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding
- F16B11/006—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding by gluing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
- F16B35/041—Specially-shaped shafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M7/00—Details of attaching or adjusting engine beds, frames, or supporting-legs on foundation or base; Attaching non-moving engine parts, e.g. cylinder blocks
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses a construction elevator building method for building construction, which comprises the steps of firstly, pouring beside a construction building to obtain a reinforced concrete elevator foundation; arranging a vertically upward screw on the upper surface of an elevator foundation, penetrating an installation hole in a base upwards by virtue of the screw and fixing the screw by adopting a nut to realize base installation, installing a guide rail frame on the base, and finally installing a suspension cage and a hoisting system on the guide rail frame, wherein the screw is a bar-planting screw, drilling a hole vertically downwards on the upper surface of the elevator foundation, the drilling position is over against the installation hole in the base, injecting an adhesive into the hole after drilling is finished and inserting the bar-planting screw, and the length of the part of the upper end of the bar-planting screw, which is exposed above the upper surface of the elevator foundation, is greater than the thickness of the base of the elevator under construction; after the adhesive is solidified, the upper end of the bar-planting screw penetrates out of the mounting hole of the base, and then the nut is screwed and mounted, so that the mounting and fixing of the base are completed. The invention has the advantages of better positioning and mounting of the guide rail frame, high construction efficiency and high stability.
Description
Technical field
The present invention relates to the realm of building construction, more particularly to a kind of construction construction elevator building method.
Background technology
Construction elevator is commonly referred to as building hoist, is generally used for vertically transporting pedestrian or building materials goods on building sites
Thing, it is the most vertical-type people's goods means of transport of Contemporary Architecture industrial application.
Construction elevator is provided with to be provided with the basis of ground guard rail, elevator and led including elevator basis, elevator basis side
Rail gantry, wall-attached frame is provided between guide rail bracket and wall, cage and elevator device are installed on guide rail bracket.Elevator basis is general
To be made by concrete material, for bearing the isostructural weight of guide rail bracket, cage, guide rail bracket is played important positioning and
Fixation.
During elevator foundation construction, first the debris on ground is cleaned out, construction elevator position releases elevator base position
Line, then shuttering, casting concrete.Wherein in casting concrete, guide rail bracket is installed for convenience of the later stage, need to be according to guide rail bracket
Size foundation bolt is cast in concrete.Embedding anchor bolts required precision is high, so required positioning time length, and
And to ensure that elevator underlying strength and bearing capacity, concrete need vibration compacting, in concrete vibrating compacting process, lower margin
Skew occurs in bolt, causes mounting hole during later stage installation guide rail bracket on guide rail bracket now to be needed with foundation bolt face
Foundation bolt is rectified a deviation using oxygen welding, foundation bolt heat-treated is unqualified, causes foundation bolt to break in use
Split.
The content of the invention
For deficiencies of the prior art, present invention solves the technical problem that being：How to provide one kind can be more
Good carries out location and installation to guide rail bracket, and efficiency of construction is high, stability high construction construction elevator building method.
In order to solve the above-mentioned technical problem, present invention employs following technical scheme：
A kind of construction construction elevator building method, it is in block to be obtained first beside construction building by concreting
The elevator basis of shape structure type, elevator basis upper surface is horizontal surface；After the solidification of elevator basis, in elevator basis upper table
Face sets screw rod straight up, and the mounting hole being upward through by screw rod on base simultaneously realizes that base is pacified using nut fixation
Dress, then in base upper mounting rail frame, cage and tackling system are finally installed on guide rail bracket, it is characterised in that the spiral shell
Bar is bar planting screw rod, sets bar planting screw rod to comprise the following steps：Drilled straight down on the upper surface on elevator basis, the brill
The mounting hole of corner is set on the face base of hole site, and drilling is completed to inject adhesive in backward drilled hole and inserts bar planting spiral shell
Bar and vertical fixed, the length that bar planting screw rod upper end is exposed to the part of surface on the basis of elevator are more than construction elevator base
Thickness；After adhesive solidification, the part that bar planting screw rod upper end passes the mounting hole of base spins install nut again, completes
The installation of base is fixed.
In the technical program, casting concrete obtains elevator basis by construction building, and elevator basis upper surface level is set
Put and mounting seat and guide rail bracket, elevator basis are used to bear the whole weight of construction elevator, positioning is also functioned to guide rail bracket
And fixation.Cage is installed, cage can be slided up and down along guide rail bracket under the drive of tackling system, hung on guide rail bracket
Cage is used to transport pedestrian or building materials goods, is used conveniently and safely.When elevator basis pours, bar planting screw rod is not cast in the lump
It is interior, but after solidification, drilled on the basis of elevator, the mounting hole of drilling face base corner is set, and bar planting screw rod is led to
Cross adhesive to be vertically fixed in drilling, can avoid offseting between bar planting screw rod and mounting hole, can preferably ensure bar planting
The cooperation of screw rod and mounting hole, more preferable mounting seat.Bar planting screw rod is fixed in elevator basis by adhesive, Ke Yigeng
The quality for the construction elevator that good raising efficiency of construction and construction obtains.
As optimization, will be inserted vertically into after the heating of implantation screw rod lower end.
So, when directly bar planting screw rod is vertically inserted into adhesive, the bubble of residual can be attached to plant in adhesive
Muscle screw rod lateral surface, and then the reliability and stability of bar planting screw rod anchoring is influenceed after solidifying.It is (excellent after the heating of bar planting screw rod lower end
Elect 100~300 degrees Celsius of heating-up temperature as, not change the performance of bar planting screw rod, the intensity for not influenceing bar planting screw rod is standard
Determine the mobility scale of heating-up temperature), when bar planting screw rod lower end is inserted in adhesive, the bar planting screw rod heat of itself can cause glue
Close to the air heats expansion of bar planting screw rod in stick, depart from bar planting screw surface so that bar planting screw rod is preferably and adhesive
With reference to being more securely anchored in adhesive.Further, bar planting screw rod is inserted into straight down and in rotary manner glue
In stick, increase the friction of bar planting screw surface and adhesive so that blibbing, which can be preferably squeezed and broken, departs from screw rod table
Face so that bar planting screw surface is preferably combined with adhesive, further the reliability of increase anchoring.
As optimization, wherein drilling is carried out using diamond drilling machine installation water injection drill, drill bit is entered in boring procedure
Row water filling aids in.
So, there is water to enter behind the drill bit inner chamber of diamond drilling machine during drilling to flow out from chisel edge again；By current
Chip caused by drilling can be preferably taken away, improves drilling efficiency, it is ensured that drilling is smoothed out；Simultaneously in drill bit
Chamber has the water outflow of abundance, and drill bit can be cooled down.
As optimization, the bar planting screw rod is processed to obtain using round steel, and bar planting screw rod top is provided with external screw thread, outside bottom
Perimeter surface carries out coarse processing.
So, bar planting screw rod is processed to obtain using round steel, and for screw-thread steel, threading is relative on round steel
It is simple and convenient, and round steel is generally used for manufacturing foundation bolt, has preferable moulding and solderability.Round steel processing is simple, system
Make conveniently, cost is low, can preferably reduce construction cost.Bar planting screw rod bottom, which carries out coarse processing, (can use mill during implementation
The modes such as sand carry out coarse processing), it can preferably increase the affinity of bar planting screw rod and adhesive, can preferably carry out anchor
Gu.
As optimization, after drilling terminates, water and dust in drilling need to be first removed, reinjects adhesive.
So, drilling is cleaned out, can preferably improve the plybonding effect of adhesive so that adhesive preferably with
The hole wall in drilled hole is combined, and preferably bar planting screw rod is anchored in drilling.When clearing up the water and dust in drilling, strip is taken
The rod member of shape, towel being bundled in rod member one end end, then one end that rod member is bundled with to towel is filled in bore inner and extracted,
Carry out cleaning to towel again to wring out, repeatedly, until the water in drilling and dust are cleaned out.
As optimization, adhesive uses the adhesive of Hilti HIT-RE 500.
So, the adhesive of Hilti HIT-RE 500 is a kind of anchoring adhesive, is mainly used in the reinforcing of structure muscle, Ke Yigeng
Good is anchored at cage bar screw rod in drilling.
As optimization, wherein determining that the diameter D of bar planting screw rod uses following step：First, the material of bar planting screw rod is first determined
Expect for No. 45 steel or 40Cr, the relative stiffness coefficient kc of bar planting screw rod is obtained according to the material of bar planting screw rod, obtain bar planting screw rod
Pretension coefficient k o, obtain bar planting screw rod safety coefficient Pn and bar planting nut stem material yield strength σ s, then bring public affairs into
FormulaThe diameter D of bar planting screw rod is obtained, it is straight that this is obtained according to the diameter D of the bar planting screw rod of acquisition
The design pulling force F that the bar planting screw rod in footpath can bear；2nd, construction elevator maximum tilting moment M is obtained, obtains what is set on base
Bar planting screw rod number i, the length of side a for building the standard knot horizontal cross-section used in guide rail bracket is obtained, brings formula P=M (2 × a × i) into
Obtain the maximum pull P needed for practice of construction, three, compare needed for the design pulling force F and practice of construction that bar planting screw rod can bear
Maximum pull P, if the design pulling force F that bar planting screw rod can bear is more than the maximum pull P needed for practice of construction, basis
The model of the diameter D selection bar planting screw rods for the bar planting screw rod being calculated, bar planting screw rod model are shown in bore diameter corresponding relation
Table 1,
Table 1, bar planting screw rod model and bore diameter corresponding relation
So, the diameter of bar planting screw rod is obtained according to bar planting nut stem material, bar planting screw rod is looked into according to the diameter of bar planting screw rod
Performance parameter table or tested to obtain the design pulling force that the bar planting screw rod of the diameter can bear, then according to actually applying
The maximum tilting moment that work elevator is subjected to obtains the pulling force that bar planting screw rod is subjected to, to ensure the security of construction elevator
Can, the design pulling force of diameter screw need to be more than the actual pulling force to be born of bar planting screw rod, can be held needed for practice of construction elevator
Whether the maximum pull received examines the design rubbish of bar planting screw rod qualified.It so can preferably ensure the security of construction elevator
Energy, meet the needs of practice of construction.The model of bar planting screw rod is selected according to the diameter of bar planting screw rod, is then drilled, can be with
Suitable drill bit is preferably selected, bore diameter obtains with bar planting screw rod model according to practical operation, is meeting that practice of construction will
On the premise of asking, ensure the intensity of base, improve the reliability and stability of construction elevator.
As optimization, wherein determining that the anchorage depth for often taking root in muscle screw rod uses following step：One, it is determined that often taking root in muscle
The basic anchorage depth La of screw rod, first obtain bar planting screw rod nominal diameter d；It is retrieved as preventing the calculating that concrete splitting is quoted again
Coefficient aspc, to prevent the design factor aspc that concrete splitting is quoted according to pouring the basic thickness of elevator, pour elevator base
The diameter and spacing of the stirrup of plinth and the nominal diameter of bar planting screw rod obtain；The tensile strength design of bar planting screw rod is obtained again
Value fy, the tensile strength design load fy of bar planting screw rod obtain according to the model of reinforcing bar used by bar planting screw rod；Plant is obtained again
The adhesion strength design load fbd of muscle adhesive, the adhesion strength design load fbd of bar planting adhesive according to adhesive etc.
Level, bar planting back gauge and spacing and strength grade of concrete obtain；Formula La=0.2aspcdfy/fbd are finally brought into obtain often
Take root in the basic anchorage depth La of muscle screw rod；Two, it is determined that often taking root in the anchorage depth design load l of muscle screw rodd, first obtain and consider respectively
Kind factor influences on bar planting screw rod tensile capacity and need to increase the correction factor Ψ of anchorage depthN；Obtain again and consider bar planting spiral shell
The correction factor Ψ of bar displacement Ductility requirementae；The basic anchorage depth for often taking root in muscle screw rod that finally step 1 is calculated
La and consideration various factors influence on bar planting screw rod tensile capacity and need to increase the correction factor Ψ of anchorage depthNAnd consideration
The correction factor Ψ of bar planting screw displacement Ductility RequirementaeBring formula l intod≥ΨNΨaeThe anchoring that La is often taken root in muscle screw rod is deep
Spend design load ldIt is defined as the anchorage depth of bar planting screw rod.Slightly above several centimeters of minimum during specific implementation.
So, the basic anchorage depth for often taking root in muscle screw rod anchors under conditions of construction elevator security performance is ensured
Minimum value, the anchorage depth design load for often taking root in muscle screw rod be by often take root in muscle screw rod basic anchorage depth combine it is various other
Influence factor, such as the obtained optimal value of intensity of concrete for pouring of base etc..It is determined that often take root in the anchor of muscle screw rod
Gu depth design value, preferably bar planting screw rod can be anchored on base, preferably ensure the reliability of whole construction elevator
And stability.
As optimization, the base is diagonally horizontally outward to be fixedly connected at horizontal rectangular block shape structure and corner
There is an anti-tipping reinforcement block, auxiliary mounting hole is vertically provided with along base diagonal on the anti-tipping reinforcement block, each auxiliary peace
The step of dress Kong Jun uses above-mentioned setting bar planting screw rod is provided with auxiliary threaded rod.
So, anti-tipping reinforcement block is provided between base and elevator basis, anti-tipping reinforcement block one end is consolidated with base
Fixed connection, on the basis of anti-tipping reinforcement block is fixedly connected on elevator by auxiliary threaded rod, equivalent to adding the to construction elevator
Two insurances.When having strong wind or guide rail bracket unbalance stress, increased anti-tipping reinforcement block, can play certain prevents from leading
The effect that rail gantry is tumbled, it can further increase the Stability and dependability of construction elevator.
In summary, the present invention has can preferably carry out location and installation to guide rail bracket, and efficiency of construction is high, and stability is high
The advantages of.
Brief description of the drawings
Fig. 1 is the structural representation of the construction construction elevator obtained using method provided by the present invention.
Fig. 2 is the close-up schematic view at A in Fig. 1.
Fig. 3 removes the top view after guide rail bracket and cage for the construction construction elevator described in Fig. 1.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
During specific implementation：As shown in FIG. 1 to 3, a kind of construction construction elevator building method, builds in construction first
Build side and the elevator basis 1 in block structure form is obtained by concreting, 1 upper surface of elevator basis is horizontal surface；Electricity
After ladder foundation 1 solidifies, screw rod straight up is set in basic 1 upper surface of elevator, is upward through by screw rod on base 2
Mounting hole is simultaneously fixed using nut and realizes that base 2 is installed, then in the upper mounting rail frame 3 of base 2, is finally installed on guide rail bracket 3
Cage 4 and tackling system, the screw rod are bar planting screw rod 5, set bar planting screw rod 5 to comprise the following steps：On elevator basis 1
Drilled straight down on upper surface, the mounting hole of corner is set on the bore position face base, and drilling is completed backward drilled
Hole in inject adhesive and insert bar planting screw rod 5 and vertical fixed, the upper end of bar planting screw rod 5 is exposed to basic 1 upper surface of elevator
The length of the part of top is more than the thickness of construction elevator base 2；After adhesive solidification, the upper end of bar planting screw rod 5 passes base 2
The part of mounting hole spin install nut again, the installation for completing base 2 is fixed.
So, casting concrete obtains elevator basis by construction building, and elevator basis upper surface is horizontally disposed with and installed
Base and guide rail bracket, elevator basis are used to bear the whole weight of construction elevator, positioning are also functioned to guide rail bracket and is fixed
Effect.Cage is installed, cage can slide up and down under the drive of tackling system along guide rail bracket, and cage is used to transport on guide rail bracket
See off people or building materials goods, be used conveniently and safely.When elevator basis pours, bar planting screw rod is not cast in the lump in, but
After solidification, drilled on the basis of elevator, the mounting hole of drilling face base corner is set, and bar planting screw rod is passed through into adhesive
Vertically it is fixed in drilling, can avoids offseting between bar planting screw rod and mounting hole, can preferably ensures bar planting screw rod and peace
Fill the cooperation in hole, more preferable mounting seat.Bar planting screw rod is fixed in elevator basis by adhesive, can preferably be improved
The quality for the construction elevator that efficiency of construction and construction obtain.
Wherein, will be inserted vertically into after the heating of implantation screw rod 5 lower end.
So, when directly bar planting screw rod is vertically inserted into adhesive, the bubble of residual can be attached to plant in adhesive
Muscle screw rod lateral surface, and then the reliability and stability of bar planting screw rod anchoring is influenceed after solidifying.It is (excellent after the heating of bar planting screw rod lower end
Elect 100~300 degrees Celsius of heating-up temperature as, not change the performance of bar planting screw rod, the intensity for not influenceing bar planting screw rod is standard
Determine the mobility scale of heating-up temperature), when bar planting screw rod lower end is inserted in adhesive, the bar planting screw rod heat of itself can cause glue
Close to the air heats expansion of bar planting screw rod in stick, depart from bar planting screw surface so that bar planting screw rod is preferably and adhesive
With reference to being more securely anchored in adhesive.Further, bar planting screw rod is inserted into straight down and in rotary manner glue
In stick, increase the friction of bar planting screw surface and adhesive so that blibbing, which can be preferably squeezed and broken, departs from screw rod table
Face so that bar planting screw surface is preferably combined with adhesive, further the reliability of increase anchoring.
Wherein, drilling is carried out using diamond drilling machine installation water injection drill, and it is auxiliary to carry out water filling to drill bit in boring procedure
Help.
So, there is water to enter behind the drill bit inner chamber of diamond drilling machine during drilling to flow out from chisel edge again；By current
Chip caused by drilling can be preferably taken away, improves drilling efficiency, it is ensured that drilling is smoothed out；Simultaneously in drill bit
Chamber has the water outflow of abundance, and drill bit can be cooled down.
Wherein, the bar planting screw rod 5 is processed to obtain using round steel, and the top of bar planting screw rod 5 is provided with external screw thread, lower, outer perimeter
Surface carries out coarse processing.
So, bar planting screw rod is processed to obtain using round steel, and for screw-thread steel, threading is relative on round steel
It is simple and convenient, and round steel is generally used for manufacturing foundation bolt, has preferable moulding and solderability.Round steel processing is simple, system
Make conveniently, cost is low, can preferably reduce construction cost.Bar planting screw rod bottom, which carries out coarse processing, (can use mill during implementation
The modes such as sand carry out coarse processing), it can preferably increase the affinity of bar planting screw rod and adhesive, can preferably carry out anchor
Gu.
Wherein, after drilling terminates, water and dust in drilling need to be first removed, reinjects adhesive.
So, drilling is cleaned out, can preferably improve the plybonding effect of adhesive so that adhesive preferably with
The hole wall in drilled hole is combined, and preferably bar planting screw rod is anchored in drilling.When clearing up the water and dust in drilling, strip is taken
The rod member of shape, towel being bundled in rod member one end end, then one end that rod member is bundled with to towel is filled in bore inner and extracted,
Carry out cleaning to towel again to wring out, repeatedly, until the water in drilling and dust are cleaned out.
Wherein, adhesive uses the adhesive of Hilti HIT-RE 500.
So, the adhesive of Hilti HIT-RE 500 is a kind of anchoring adhesive, is mainly used in the reinforcing of structure muscle, Ke Yigeng
Good is anchored at cage bar screw rod in drilling.
Wherein it is determined that the diameter D of bar planting screw rod uses following step：First, the material for first determining bar planting screw rod is No. 45
Steel or 40Cr, the relative stiffness coefficient kc of bar planting screw rod is obtained according to the material of bar planting screw rod, obtain the pretension system of bar planting screw rod
Number ko, the safety coefficient Pn of the bar planting screw rod and yield strength σ s of bar planting nut stem material is obtained, then brings formula intoThe diameter D of bar planting screw rod is obtained, the diameter is obtained according to the diameter D of the bar planting screw rod of acquisition
The design pulling force F that can bear of bar planting screw rod；2nd, construction elevator maximum tilting moment M is obtained, obtains the plant set on base
Muscle screw rod number i, the length of side a for building the standard knot horizontal cross-section used in guide rail bracket is obtained, formula P=M (2 × a × i) is brought into and obtains
Maximum pull P needed for practice of construction, three, compare needed for the design pulling force F and practice of construction that bar planting screw rod can bear
Maximum pull P, if the design pulling force F that bar planting screw rod can bear is more than the maximum pull P needed for practice of construction, according to calculating
The model of the diameter D selection bar planting screw rods of obtained bar planting screw rod, bar planting screw rod model are shown in Table 1 with bore diameter corresponding relation,
Table 1, bar planting screw rod model and bore diameter corresponding relation
So, the diameter of bar planting screw rod is obtained according to bar planting nut stem material, bar planting screw rod is looked into according to the diameter of bar planting screw rod
Performance parameter table or tested to obtain the design pulling force that the bar planting screw rod of the diameter can bear, then according to actually applying
The maximum tilting moment that work elevator is subjected to obtains the pulling force that bar planting screw rod is subjected to, to ensure the security of construction elevator
Can, the design pulling force of diameter screw need to be more than the actual pulling force to be born of bar planting screw rod, can be held needed for practice of construction elevator
Whether the maximum pull received examines the design rubbish of bar planting screw rod qualified.It so can preferably ensure the security of construction elevator
Energy, meet the needs of practice of construction.The model of bar planting screw rod is selected according to the diameter of bar planting screw rod, is then drilled, can be with
Suitable drill bit is preferably selected, bore diameter obtains with bar planting screw rod model according to practical operation, is meeting that practice of construction will
On the premise of asking, ensure the intensity of base, improve the reliability and stability of construction elevator.
Wherein it is determined that the anchorage depth for often taking root in muscle screw rod 5 uses following step：One, it is determined that often taking root in muscle screw rod
Basic anchorage depth La, first obtains bar planting screw rod nominal diameter d；It is retrieved as preventing the design factor that concrete splitting is quoted again
Aspc, to prevent the design factor aspc that concrete splitting is quoted according to pouring the thickness on elevator basis 1, pour elevator basis 1
Stirrup diameter and the nominal diameter of spacing and bar planting screw rod obtain；The tensile strength design load of bar planting screw rod is obtained again
Fy, the tensile strength design load fy of bar planting screw rod obtain according to the model of reinforcing bar used by bar planting screw rod；Bar planting is obtained again
With the adhesion strength design load fbd of adhesive, the adhesion strength design load fbd of bar planting adhesive according to the grade of adhesive,
Bar planting back gauge and spacing and strength grade of concrete obtain；Finally bring formula La=0.2aspcdfy/fbd into and obtain every
The basic anchorage depth La of bar planting screw rod；Two, it is determined that often taking root in the anchorage depth design load l of muscle screw rodd, it is various first to obtain consideration
Factor influences on bar planting screw rod tensile capacity and need to increase the correction factor Ψ of anchorage depthN；Obtain again and consider bar planting screw rod
The correction factor Ψ of displacement Ductility requirementae；The basic anchorage depth La for often taking root in muscle screw rod that finally step 1 is calculated
And consider that various factors influences on bar planting screw rod tensile capacity and need to increase the correction factor Ψ of anchorage depthNPlanted with consideration
The correction factor Ψ of muscle screw displacement Ductility RequirementaeBring formula l intod≥ΨNΨaeLa is often taken root in the anchorage depth of muscle screw rod
Design load ld。
So, the basic anchorage depth for often taking root in muscle screw rod anchors under conditions of construction elevator security performance is ensured
Minimum value, the anchorage depth design load for often taking root in muscle screw rod be by often take root in muscle screw rod basic anchorage depth combine it is various other
Influence factor, such as the obtained optimal value of intensity of concrete for pouring of base etc..It is determined that often take root in the anchor of muscle screw rod
Gu depth design value, preferably bar planting screw rod can be anchored on base, preferably ensure the reliability of whole construction elevator
And stability.
Wherein, the base 2 is diagonally horizontally outward to be fixedly connected with horizontal rectangular block shape structure and corner
Anti-tipping reinforcement block 6, auxiliary mounting hole is vertically provided with along the diagonal of base 2 on the anti-tipping reinforcement block 6, each auxiliary peace
The step of dress Kong Jun uses above-mentioned setting bar planting screw rod 5 is provided with auxiliary threaded rod.
So, anti-tipping reinforcement block is provided between base and elevator basis, anti-tipping reinforcement block one end is consolidated with base
Fixed connection, on the basis of anti-tipping reinforcement block is fixedly connected on elevator by auxiliary threaded rod, equivalent to adding the to construction elevator
Two insurances.When having strong wind or guide rail bracket unbalance stress, increased anti-tipping reinforcement block, can play certain prevents from leading
The effect that rail gantry is tumbled, it can further increase the Stability and dependability of construction elevator.
Claims (9)
1. a kind of construction construction elevator building method, obtained first beside construction building by concreting in bulk
The elevator basis of structure type, elevator basis upper surface is horizontal surface；After the solidification of elevator basis, in elevator basis upper surface
Screw rod straight up is set, the mounting hole being upward through by screw rod on base simultaneously realizes floor installation using nut fixation,
Again in base upper mounting rail frame, cage and tackling system are finally installed on guide rail bracket, it is characterised in that the screw rod is
Bar planting screw rod, bar planting screw rod is set to comprise the following steps：Drilled straight down on the upper surface on elevator basis, the drilling position
The mounting hole for putting corner on face base is set, drilling complete in backward drilled hole injection adhesive and insert bar planting screw rod and
Vertical fixed, the length that bar planting screw rod upper end is exposed to the part of surface on the basis of elevator is more than the thickness of construction elevator base
Degree；After adhesive solidification, the part that bar planting screw rod upper end passes the mounting hole of base spins install nut again, completes base
Installation fix.
2. construction as claimed in claim 1 construction elevator building method, it is characterised in that add implantation screw rod lower end
It is inserted vertically into after heat.
3. construction as claimed in claim 1 construction elevator building method, it is characterised in that wherein drilling uses Buddha's warrior attendant
Stone drilling machine installation water injection drill is carried out, and water filling auxiliary is carried out to drill bit in boring procedure.
4. construction as claimed in claim 1 construction elevator building method, it is characterised in that the bar planting screw rod uses
Round steel is processed to obtain, and bar planting screw rod top is provided with external screw thread, and lower outer peripheral surface carries out coarse processing.
5. construction as claimed in claim 1 construction elevator building method, it is characterised in that after drilling terminates, need elder generation
The water and dust in drilling are removed, reinjects adhesive.
6. construction as claimed in claim 1 construction elevator building method, it is characterised in that adhesive uses Hilti
The adhesive of HIT-RE 500.
7. construction as claimed in claim 1 construction elevator building method, it is characterised in that wherein determine bar planting screw rod
Diameter D use following step：First, the material for first determining bar planting screw rod is No. 45 steel or 40Cr, according to the material of bar planting screw rod
Material obtains the relative stiffness coefficient kc of bar planting screw rod, obtains the pretension coefficient k o of bar planting screw rod, obtains the safety system of bar planting screw rod
Number Pn and bar planting nut stem material yield strength σ s, then bring formula intoObtain bar planting spiral shell
The diameter D of bar, the design pulling force F that the bar planting screw rod of the diameter can bear is obtained according to the diameter D of the bar planting screw rod of acquisition；
2nd, construction elevator maximum tilting moment M is obtained, obtains the bar planting screw rod number i set on base, acquisition is built used in guide rail bracket
Standard knot horizontal cross-section length of side a, bring formula P=M (2 × a × i) into and obtain maximum pull P needed for practice of construction, three,
Compare the design pulling force F and maximum pull P needed for practice of construction that bar planting screw rod can bear, if what bar planting screw rod can bear
Design the diameter D selection bar plantings that pulling force F is more than maximum pull P, then the bar planting screw rod that basis is calculated needed for practice of construction
The model of screw rod, bar planting screw rod model are shown in Table 1 with bore diameter corresponding relation,
Table 1, bar planting screw rod model and bore diameter corresponding relation
8. construction as claimed in claim 1 construction elevator building method, it is characterised in that wherein determine often to take root in muscle
The anchorage depth of screw rod uses following step：One, it is determined that often taking root in the basic anchorage depth La of muscle screw rod, first obtain bar planting spiral shell
Bar nominal diameter d；It is retrieved as preventing the design factor aspc that concrete splitting is quoted again, to prevent the meter of concrete splitting reference
Coefficient aspc is calculated according to pouring the thickness on elevator basis, the diameter for pouring the basic stirrup of elevator and spacing and bar planting screw rod
Nominal diameter obtains；The tensile strength design load fy of bar planting screw rod, the tensile strength design load fy of bar planting screw rod are obtained again
Obtained according to the model of reinforcing bar used by bar planting screw rod；The adhesion strength design load fbd of bar planting adhesive, bar planting are obtained again
Grade, bar planting back gauge and spacing and strength grade of concrete with the adhesion strength design load fbd of adhesive according to adhesive
Obtain；Finally bring formula La=0.2aspcdfy/fbd into and obtain the basic anchorage depth La for often taking root in muscle screw rod；Two, it is determined that often
Take root in the anchorage depth design load l of muscle screw rodd, first obtain and consider that various factors influences on bar planting screw rod tensile capacity and need to added
The correction factor Ψ of big anchorage depthN；The correction factor Ψ for considering bar planting screw displacement Ductility Requirement is obtained againae；Finally will step
The rapid one basic anchorage depth La for often taking root in muscle screw rod being calculated and consideration various factors carry to bar planting screw rod tension
Power influences and need to increase the correction factor Ψ of anchorage depthNWith the correction factor Ψ for considering bar planting screw displacement Ductility RequirementaeBand
Enter formula ld≥ΨNΨaeLa is often taken root in the anchorage depth design load l of muscle screw roddThe anchoring for being defined as bar planting screw rod is deep
Degree.
9. construction as claimed in claim 1 construction elevator building method, it is characterised in that the base is horizontal
Anti-tipping reinforcement block is diagonally horizontally outward fixedly connected with rectangular block shape structure and corner, on the anti-tipping reinforcement block
Auxiliary mounting hole is vertically provided with along base diagonal, each auxiliary mounting hole is pacified using the step of above-mentioned setting bar planting screw rod
Equipped with auxiliary threaded rod.
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| CN204530742U (en) * | 2014-12-15 | 2015-08-05 | 中建八局第四建设有限公司 | A kind of adjustable suspension column |
| CN106088141A (en) * | 2014-08-14 | 2016-11-09 | 中国建筑第八工程局有限公司 | For reinforcing the construction method of the base structure of lowering or hoisting gear |
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| CN101839070A (en) * | 2010-04-07 | 2010-09-22 | 南通建工集团股份有限公司 | Construction method for temporarily supporting and strengthening reinforced concrete structured beam by using steel column |
| CN201901879U (en) * | 2010-11-12 | 2011-07-20 | 上海市机械施工有限公司 | Nonstandard foundation used for fixing tower crane |
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