CN104261232A - Lifting device attaching to special-shaped section and mounting method of lifting device - Google Patents

Lifting device attaching to special-shaped section and mounting method of lifting device Download PDF

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Publication number
CN104261232A
CN104261232A CN201410399694.0A CN201410399694A CN104261232A CN 104261232 A CN104261232 A CN 104261232A CN 201410399694 A CN201410399694 A CN 201410399694A CN 104261232 A CN104261232 A CN 104261232A
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CN
China
Prior art keywords
section
steel
attached
basis
attachment
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Granted
Application number
CN201410399694.0A
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Chinese (zh)
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CN104261232B (en
Inventor
王一峰
葛乃剑
李小飞
谢高华
杨媛鹏
危鼎
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China Construction Eighth Engineering Division Co Ltd
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China Construction Eighth Engineering Division Co Ltd
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Publication date
Application filed by China Construction Eighth Engineering Division Co Ltd filed Critical China Construction Eighth Engineering Division Co Ltd
Priority to CN201610559261.6A priority Critical patent/CN106193098B/en
Priority to CN201610559263.5A priority patent/CN106193099B/en
Priority to CN201610559222.6A priority patent/CN106185543B/en
Priority to CN201410399694.0A priority patent/CN104261232B/en
Priority to CN201610556983.6A priority patent/CN106115417B/en
Priority to CN201610557022.7A priority patent/CN106088141B/en
Publication of CN104261232A publication Critical patent/CN104261232A/en
Application granted granted Critical
Publication of CN104261232B publication Critical patent/CN104261232B/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • 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

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  • 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)
  • Automation & Control Theory (AREA)
  • Piles And Underground Anchors (AREA)
  • Bridges Or Land Bridges (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)

Abstract

The invention relates to a lifting device attaching to a special-shaped section. A lifter is attached to the special-shaped section. The lifting device comprises an attaching foundation and the lifter. The attaching foundation is vertically disposed on the lateral portion of the special-shape section and is in support connection with the special-shaped section. The lifter comprises a tower column and an elevator which moves up and down along the tower column. The tower column is vertically disposed on the lateral portion of the attaching foundation and is in support connection with the attaching foundation. The lifting device has the advantages that the attaching foundation for the lifter is disposed at the special-shape section in a support manner, and accordingly the lifter is applicable to the special-shaped section and used for conveying the special-shaped section.

Description

Be attached to jacking system and the installation method thereof of section
Technical field
The present invention relates to building structure field, espespecially a kind of jacking system and installation method thereof being attached to section.
Background technology
In building operation, the conveniently transport of workmen and material, the general arranged outside elevator adopted in building structure main body, elevator is connected to building structure main body by wall-attaching equipment.The building structure main body of this elevator attachment belongs to regular shape structure, and building structure main body arranges built-in fitting, and then wall-attaching equipment and built-in fitting are welded and fixed, and have so just installed elevator.For picture section, i.e. the precipice of fitfull structure or inclination, the wall-attaching equipment of elevator cannot be attached to this section due to attached wall limited length, makes to use elevator to become problem at section place.
Summary of the invention
The object of the invention is to the defect overcoming prior art, a kind of jacking system and the method that are attached to section are provided, solve elevator in prior art and cannot be attached to the problem of section.
The technical scheme realizing above-mentioned purpose is:
A kind of jacking system being attached to section of the present invention, comprising:
Attachment basis, be erected on section sidepiece and with described section support and connection; And
Elevator, comprises king-post and the elevator along described king-post up-and-down movement, and described king-post is erected on the basic sidepiece of described attachment and support and connection basic with described attachment.
Adopt and attachment basis is set in the support of section place, utilize this attachment basis to provide attachment basic for elevator, make elevator to be applied to section, for section provides transportation services.
The further improvement that the present invention is attached to the jacking system of section is, includes two elevators, is symmetrically set in the both sides on described attachment basis respectively.Be symmetrical arranged two elevators, make the both sides stress equalization adhering to basis, keep the vertical firm of attachment basis better.
The further improvement that the present invention is attached to the jacking system of section is, is erected with steel platform between described attachment basis and the top of described section; The top place surrounding outer wall on described attachment basis is provided with stiffening plate, lays supporting steel plate, be provided with multiple stiffener between described supporting steel plate and described stiffening plate on described attachment basis; The top of described section is provided with pre-embedded steel slab, described pre-embedded steel slab and described supporting steel plate is added is provided with girder steel; Be equipped with platform steel plate on described girder steel and form described steel platform.Arrange steel platform at the top of section, be provided to the construction passage of elevator, steel girder erection, on attachment basis, makes attachment basis only bear vertical pressure, provides the security and stability on attachment basis.Such method of attachment, makes stress spread transmission downwards successively, effectively solves the situation that connecting joint place produces stress rupture.
The further improvement that the present invention is attached to the jacking system of section is, described king-post interval is fixed with attached wall part, the upper corresponding described attached wall part in described attachment basis is provided with connecting element, and described connecting element is provided with connection otic placode, and described connection otic placode is fixedly connected with described attached wall part.
The further improvement that the present invention is attached to the jacking system of section is, described connecting element comprises two root type steel parts and Duo Gen fastener, described shaped steel part is located at the upper side connecting described attached wall part, described attachment basis respectively, and described shaped steel part is provided with connection otic placode; The two ends of described fastener are provided with screw rod, and are placed between two described shaped steel parts, and described screw rod respectively correspondence is worn described shaped steel part and screwed togather by nut fastening.The shaped steel part of both sides is strained and fixed in the outside on attachment basis by fastener, and the shaped steel part of fastener to two ends also serves the effect against supporting simultaneously.
The further improvement that the present invention is attached to the jacking system of section is, described attachment basis is fixed with wall-attaching equipment, described section has multiple anchoring piece in the junction anchoring with wall-attaching equipment, anchor plate is fixed with on multiple described anchoring piece, described anchor plate is provided with attached wall seat, and described attached wall seat is connected with the end winding support of described wall-attaching equipment.
A kind of installation method being attached to the jacking system of section of the present invention, comprising:
Attachment basis with described section support and connection is set on ground; And
Set up elevator, the king-post of described elevator is erected on ground, and support and connection are in described attachment basis, are installed on described king-post by the elevator of described elevator, make described elevator along described king-post up-and-down movement.
The further improvement that the present invention is attached to the installation method of the jacking system of section is, the top being also included in the basic top of described attachment and described section arranges steel platform:
Top place surrounding outer wall in described attachment basis is fixedly connected with stiffening plate;
On described attachment basis, lay supporting steel plate and fix;
Between described supporting steel plate and stiffening plate, multiple stiffener is set;
In the top of described section, pre-embedded steel slab is set;
Girder steel is set up on described pre-embedded steel slab and described supporting steel plate,
On described girder steel, lay platform steel plate, described platform steel plate and described girder steel are connected and fixed, form described steel platform.
The further improvement that the present invention is attached to the installation method of the jacking system of section is, described king-post support and connection comprise in described attachment basis:
On king-post, interval arranges attached wall part;
Connecting element is set in the position of the upper corresponding described attached wall part in described attachment basis, connection otic placode is set on described connecting element;
Described attached wall part is fixedly connected with described connection otic placode.
The further improvement that the present invention is attached to the installation method of the jacking system of section is, arranges connecting element comprise in the position of the upper corresponding described attached wall part in described attachment basis:
Angle steel is provided, screw rod is welded in respectively the two ends of described angle steel and exposes one section and screw togather end;
Be arranged at by described angle steel on described attachment basis, the end correspondence of described angle steel connects the position of described attached wall part;
There is provided channel-section steel, on described channel-section steel, corresponding described screw rod offers through hole, and the position of corresponding described attached wall part is provided with connection otic placode;
By described screw rod through the through hole on corresponding described channel-section steel, and described in being screwed togather by nut, screw togather the two ends that two described channel-section steels are anchored on described angle steel by end respectively.
The further improvement that the present invention is attached to the installation method of the jacking system of section is, described in the basic support and connection of described attachment, the method for section comprises:
Multiple anchoring piece is anchored in the attachment point place of described section;
In the end winding support anchor plate of multiple anchoring piece;
Again attached wall seat is set on described anchor plate;
Be fixedly installed wall-attaching equipment in described attachment basis, the end of described wall-attaching equipment is connected and fixed with corresponding described attached wall seat.
Accompanying drawing explanation
Fig. 1 is the lateral plan that the present invention is attached to the jacking system of section;
Fig. 2 is the front elevation that the present invention is attached to the jacking system of section;
Fig. 3 is that the present invention is attached to installation foundation in the jacking system of section and is anchored in the structural representation on ground;
Fig. 4 is the structural representation of anchor pole in Fig. 3;
Fig. 5 is the structural representation that the present invention is attached to attachment basis and section support and connection in the jacking system of section;
Fig. 6 is the structural representation of anchoring piece in Fig. 5;
Fig. 7 is the structural representation that the present invention is attached to attachment basis and attached wall part in the jacking system of section;
Fig. 8 is that the present invention is attached in the jacking system of section the top structure schematic diagram adhering to basis;
Fig. 9 is that the present invention is attached in the jacking system of section the top structure birds-eye view adhering to basis.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Consult Fig. 1, show the lateral plan that the present invention is attached to the jacking system of section.Need at the construction field (site) the top of elevator realization from section to be installed to bottom transporting material and workmen, but because section angle of inclination is large, surface irregularity, cannot provide installation foundation for elevator, and the attached wall limited length of elevator, cannot be supported on section.The jacking system that the present invention is attached to section adopts the attachment basis arranging and be supported in section, and as installing the basis of elevator, elevator is attached to attachment basis, guarantees the firm and use safety of the installation of elevator.This attachment basis can be standard section of tower crane, the concrete structure of building or steel structural upright column etc., and adopt attached wall part to be connected and fixed between the king-post of elevator and attachment basis, this attached wall part is arranged at certain intervals, effectively ensure that the steadiness of king-post.In addition, for convenience of the use of elevator, between the top and the top of section on attachment basis, be provided with steel platform, form walkway, for workmen and material etc. provide transport convenient.Below in conjunction with accompanying drawing the jacking system of section is attached to the present invention and method is described.
Consult Fig. 1, show the lateral plan that the present invention is attached to the jacking system of section.Below in conjunction with Fig. 1, the jacking system that the present invention is attached to section is described.
As shown in Figure 1, the present invention is attached to the jacking system of section, and for elevator 30 is attached to section 10, this section 10 is declivity in the present embodiment, the angle of inclination of this declivity is comparatively large, and between the T&B of this declivity, horizontal throw reaches 21 meters.The jacking system that the present invention is attached to section comprises attachment basis 20 and elevator 30, attachment basis 20 be erected on section 10 sidepiece and and section 10 between support and connection, elevator 30 comprises king-post 301 and the elevator 302 along king-post 301 up-and-down movement, and king-post 301 is erected on the sidepiece on attachment basis 20 and and adheres to support and connection between basis 20.Attachment basis 20 and king-post 301 are located on the ground 60 of the bottom of section 10, and in ground 60, place is provided with basic design 50, is provided with anchor pole 501 between this basic design 50 and ground 60.Support and connection are realized by wall-attaching equipment 206 between attachment basis 20 and section 10, the attachment top of 20, basis and the top shelf of section 10 are provided with steel platform 40, steel platform 40 act as walkway, by the transport of materials on section top on the elevator 302 of elevator 30, moved downward the ground 60 of the bottom being transported to section 10 along king-post 301 by elevator 302.
Attachment basis 20 can be standard section of tower crane, the concrete structure of building or steel structural upright column, and in the present embodiment, preferably adopt standard section of tower crane, after construction terminates, this standard section of tower crane is for convenience detach, and also can continue to use.The king-post 301 of elevator 30 is provided with guide rail, and elevator 302 is installed on guide rail, along guide rail up-and-down movement.
Consult Fig. 2, show the front elevation that the present invention is attached to the jacking system of section, shown in Fig. 2, jacking system the present invention being attached to section is described.
As shown in Figure 2, as a better embodiment of the present invention, jacking system comprises two elevators 30, and the both sides on this attachment basis 20 arrange an elevator 30 respectively.The both sides on attachment basis 20 are equipped with elevator 30, make the stress equalization adhering to basis 20, guarantee the stable connection between elevator 30 and attachment basis 20, guarantee construction safety.The king-post 301 of elevator 30 is fixed on the side on attachment basis 20 respectively by attached wall part 303, attached wall part 303 realizes king-post 302 support and connection in attachment basis 20, attachment basis 20 and king-post 301 are erected on ground 60 respectively, in ground 60, place is provided with basic design 50, basic design 50 realizes anchor connection by anchor pole 501 and ground 60, for adhering to basis 20 and king-post 302 provides solid base.Shown in composition graphs 3, according to elevator 30 and the Calculation and Analysis of Force of adhering to basis 20, design and meet the basic design 50 supporting requirement, be mutually anchored between the basic design 50 of wherein attachment basic 20 and the basic design 50 of king-post 302, form an entirety.Be provided with anchor pole 501 in this basic design 50, anchor pole 501 one end anchors into ground, and it is inner that the other end anchors into basic design 50, achieves that anchoring between basic design 50 with ground 60 is stable to be connected.Shown in composition graphs 4, when anchor pole 501 is set, hole prior to ground 60, then anchor pole 501 to be inserted in boring and on ground, to expose one section of anchoring section, cement wash 503 is injected in boring, be that the anchoring section at ground place arranges anchor plate 502, after cement wash 503 solidifies, the one end achieving anchor pole 501 anchors into ground.Anchoring section and the interior reinforcing bar binding laid of basic design 50 of anchor pole 501 are fixed, and then during casting concrete basis of formation structure 50, the anchoring section of anchor pole 501 has just anchored in basic design 50.
Shown in composition graphs 5, show the structural representation that the present invention is attached to attachment basis and section support and connection in the jacking system of section.Below in conjunction with Fig. 5, the present invention is attached to attachment basis and section support and connection structure in the jacking system of section and is described.
As shown in Figure 5, attachment basis 20 is by realizing support and connection between wall-attaching equipment 206 and section 10, this wall-attaching equipment 206 is connected by the attached wall seat fixing with section 10 surface, attached wall seat is arranged at the attachment point be connected with wall-attaching equipment 206, at the attachment point place of section 10, multiple anchoring piece 103 is set, shown in composition graphs 6, the way of anchoring is hole in the position of anchoring, then anchoring piece 103 is inserted post-infusion cement slurry 1031 and carry out anchoring, this anchoring piece 103 arranges anchor plate 104 in the end of boring, weld in the junction of anchoring piece 103 and anchor plate 104, the height of weld seam 1041 is 6mm.The anchor plate 104 of multiple anchoring pieces 103 at this attachment point place is fixed with attached wall seat, and this attached wall seat and wall-attaching equipment 206 are connected and fixed.Wall-attaching equipment 206 comprises multiple supporting steel pipe, supporting steel pipe skewed horizontal load is between attachment basis 20 and section 10. preferably, wall-attaching equipment 206 comprises the first support tube and the second support tube, one end of second support tube of the first support tube is fixed on attachment basis 20, the other end is remotely connected on the attached wall seat on section 10 mutually, achieves basic 20 support and connection of attachment in section 10.
Consult shown in Fig. 7, show the structural representation that the present invention is attached to attachment basis and attached wall part in the jacking system of section, shown in Fig. 7, structure the present invention being attached to attachment basis and attached wall part in the jacking system of section is described.
As shown in Figure 7, on king-post 301, interval is fixed with attached wall part 303, attachment basis 20 is fixedly connected on by attached wall part 303, the position of attachment basis 20 corresponding attached wall parts 303 arranges connecting element 204, this connecting element 204 comprises two root type steel parts 2042 and Duo Gen fastener 2041, by fastener 2041, two root type steel parts 2042 is anchored on the outside on attachment basis 20.Shaped steel part 2042 is fixed with and connects otic placode 205, this connection otic placode 205 and attached wall part 303 are connected and fixed, achieve by attached wall part 303 and king-post 301 with adhere to basic 20 be fixedly connected with.The two ends of fastener 2041 are provided with screw rod, on shaped steel part 2042, corresponding screw rod offers through hole, the screw rod at these fastener 2041 two ends wears the through hole on corresponding shaped steel part 2042 respectively, screwed togather fastening by nut, two root type steel parts 2042 are strained, two root type steel parts 2042 are fixedly clamped in the outside on attachment basis 20.Preferably, the length of fastener 2041 is identical with the length on attachment basis 20, when shaped steel part 2042 being screwed togather fastening by the screw rod on fastener 2041, shaped steel part 2042 end being resisted against fastener 2041 tightly, the shaped steel part 2042 of end to both sides of fastener 2041 serves certain supporting role, and this fastener 2041 is preferably shaped steel part, can be angle steel, also can be channel-section steel, the two ends of shaped steel part be welded with screw rod respectively.Shaped steel part 2042 can be angle steel, can be channel-section steel.
This attached wall part 303 comprises bar shaped frame 3031 and ladder-shaped frame 3032, and bar shaped frame 3031 one end and ladder-shaped frame 3032 are bolted connection, and bar shaped frame 3031 is connected with the minor face of ladder-shaped frame 3032, and the other end and king-post 301 are bolted connection.The other end of ladder-shaped frame 3032, the namely base of ladder-shaped frame 3032, the both sides on base are installed with adapter plate respectively, and this adapter plate has been fastened by bolts pipe link, connection otic placode 205 on pipe link correspondence attachment basis 20, pipe link is with to be connected otic placode involutory and be bolted connection.King-post 301 arranges an attached wall part 303 at interval of 6 meters to 9 meters, adopt bolt and pin by attached wall part 303 respectively be connected otic placode 205 and king-post 301 couples together, for king-post 301 provides a supporting role.
Consult Fig. 8, show in the present invention the top structure schematic diagram adhering to basis, consult Fig. 9, show in the present invention the birds-eye view of the top structure adhering to basis.Below in conjunction with Fig. 8 and Fig. 9, the top structure adhering to basis in the present invention is described.
As shown in Figure 8 and Figure 9, the surrounding outer wall at the top place on attachment basis 20 is provided with stiffening plate 201, this stiffening plate 201 is welded on attachment basis 20 by plug welding hole 2011, screw rod 2012 is provided with between corresponding stiffening plate 201, and be fastenedly connected by screw rod 2012, make the stiffening plate 201 of relative both sides clamp attachment basis 20.The top on attachment basis 20 is equipped with supporting steel plate 202, multiple stiffener 2013 is set between supporting steel plate 202 and stiffening plate 201, girder steel 203 is set up on supporting steel plate 202, and be welded and fixed with supporting steel plate 202, this girder steel 203 and the connection mode of adhering to basis 20, make 20, attachment basis bear vertical pressure, provide the security and stability on attachment basis.Such method of attachment, makes stress spread transmission downwards successively, effectively solves the situation that connecting joint place produces stress rupture.Shown in composition graphs 1, the attachment top of 20, basis and the top of section 10 are provided with steel platform 40, the top of section 10 is provided with retaining wall, in this retaining wall, pre-embedded steel slab is set, girder steel 203 is set up on supporting steel plate 202 and pre-embedded steel slab, and be welded and fixed with supporting steel plate 202 and pre-embedded steel slab respectively in the bottom of girder steel 203, steel platform 40 comprises girder steel 203 and platform steel plate, platform steel plate is layed on girder steel 203, and be welded and fixed with the junction of girder steel 203, the top of section 10 and the top on attachment basis 20 is communicated with by steel platform 40, form walkway.
Girder steel 203 and the connection mode of adhering to basis 20, the connection mode of middle girder steel compared to existing technology, as edge of a wing welding or the bolted and welded connection of web bolt, the following defect that existing girder steel connection mode exists can be solved: girder steel not only produces pressure to attachment basis also can produce moment of flexure, and connecting joint place easily produces destruction, weld seam or solder joint easily disconnect, it is logical etc. to split, and there is potential safety hazard.The present invention ensures the security and stability in building hoist between attachment basis 20 and girder steel 203, girder steel 203 is adopted to adopt with attachment basis 20 connection mode overlapped, 20, attachment basis is made to bear vertical pressure, provide the safety and stability of attachment basis 20 and mounting structure entirety, take overlapping mode by the diffusion transmission of stress simultaneously, efficiently solve the stress rupture situation at connecting joint place.
The beneficial effect that the present invention is attached to the jacking system of section is:
Adopt elevator to be attached to the frame mode on attachment basis, solve the problem that elevator cannot be supported in section, and when this structure is set, corresponding calculating has been carried out to the bearing capacity on attachment basis, has met construction requirement, there is safety control.By adhering to the employing on basis, the mounting structure of elevator is made to have simple feature.
Elevator adopts attached wall part and coordinating of connecting element to realize with the connection on attachment basis, attached wall part applies pulling force to the channel-section steel on connecting element, the effect between two channel-section steels, channel-section steel being played to support is located at by angle steel on connecting element, the pulling force of both sides can be offset, reduce the pulling force that attachment basis is subject to, guarantee the stability of adhering to basis, and the connection structure of attached wall part and connecting element is easy for installation, stabilized structure, effectively ensure that the overall steadiness of elevator.
The top on attachment basis and the top of section are provided with steel platform, use, provide the passage from profile head to elevator as walkway, facilitate passing through of people and goods.This steel putting up platform is between attachment basis and the pre-embedded steel slab of section, weld with attachment basis and pre-embedded steel slab respectively, this mode set up, steel platform is made all only to produce pressure to attachment basis and pre-embedded steel slab, attachment basis is made only to bear pressure, improve the safety and stability on attachment basis, this pressure is transmitted by overlap joint diffusion simultaneously, reduces the stress rupture for weld nugget.
Wall-attaching equipment is adopted to realize support and connection between attachment basis and section, effective support on attachment basis is realized by wall-attaching equipment, firm for guaranteeing the support of wall-attaching equipment, section is provided with multiple anchoring piece in attachment point place, effectively improves the steadiness of support.
The installation method that the present invention is attached to the jacking system of section comprises:
Shown in composition graphs 1, attachment basis 20 is set on ground 60, basic 20 support and connection will be adhered in section 10; Sidepiece again in attachment basis 20 sets up elevator 30, the king-post 301 of elevator 30 is erected on ground 60, and support and connection are in attachment basis 20, then are installed on the guide rail of king-post 301 by the elevator 302 of elevator 30, make elevator 302 can along king-post 301 up-and-down movement.Adopt attachment basis to depend on section, solve section angle of inclination greatly, the problem that directly cannot provide support for elevator, attachment basis can provide good brace foundation for elevator, realizes the safe operation of elevator.
The installation method that the present invention is attached to the jacking system of section also comprises: the basic design 50 arranging attachment basis 20 and king-post 301, the both sides on attachment basis 20 are respectively arranged with king-post 301, this basic design 50 is before setting, first need calculate the stressing conditions of attachment basis 20 and elevator 30, according to force analysis design basis structure 50.Adopt standard section of tower crane to adhere to basis 20 below, carry out Calculation and Analysis of Force:
Standard section of tower crane checks, known by force analysis, and a pair couple torsional interaction that people's goods elevator is produced by its attached wall part, in standard section of tower crane, is provided formula by people's goods elevator specification sheets: F = L × 60 B × 2.05 KN
L=2600, B=1425 in scheme, by can be calculated: F=53.40KN
Therefore torque T=F × B that this couple produces, calculate known T=53.4KN × 1.425m=76.10KN.m.
Because people's goods elevator is arranged in standard section of tower crane both sides, old friend's goods elevator to the moment of torsion that standard section of tower crane produces is:
76.10KN.m × 2=152.20KN.m≤269.3KN.m, in the field of load of standard section of tower crane, so standard section of tower crane meets the demands as the elevator 30 adhering to shoring of foundation both sides.
Standard section of tower crane fundamental analysis calculates, known by analyzing, people's goods elevator produces moment of torsion by means of only people's goods elevator attached wall part to standard section of tower crane, and≤T=269.3 KN.m, and people's goods elevator nominal payload is 2 × 2000kg, namely cheat on roof panel and act on maximum, force≤4 × 2000 on standard section of tower crane × 10=80KN≤Fv=511.2KN, if therefore if standard section of tower crane basis meets the conventional normal operation of TC5610 tower crane time force request, inevitablely also meet the necessary force request of this scheme.Drawn by computational analysis, standard section of tower crane key dimension is: 4m × 4m × 1.5m, and arrangement of reinforcement is: HRB400 φ 14@150 double-layer double-direction.
Lifter foundation bearing capacity calculation: cage weight: 1500 × 2=3000kg, fence weight: 1170kg, guide rail bracket gross weight (needing 40 joints altogether): 40 × 170=6800kg, load carrying ability (two cage): 2 × 2000kg, adds up to: 14970kg.
Wall-attached frame, power cable, the weight such as crinoline, steel rope, headstock fastener account for 35% 2380kg of guide rail bracket total weight.Getting safety factor is 2.
P=(14970+2380) × 0.02=379.4KN, by above data, the maximum pressure that bears in this basis need meet 379.4KN.Attention: the earth bearing strength that ground can carry must meet 0.1Mpa.
According to building hoist unit provide the known basis by bearing made by maximum pressure 379.4KN of specification sheets to check the requirement of this elevator.Due to calculate basis and only need meet bearing pressure requirement, therefore this basic calculation model to choose independent column's spread foundation be that computation model carries out calculating design.Result of calculation is 4m × 2.8m × 0.5m, and arrangement of reinforcement is HRB400 φ 12@150 double-layer double-direction.
Known by above-mentioned analysis, basic design 50 comprises standard section of tower crane basis and lifter foundation, and this standard section of tower crane key dimension is 4m × 4m × 1.5m, and lifter foundation is of a size of 4m × 2.8m × 0.5m.
Shown in composition graphs 3 and Fig. 4, the construction method of basic design 50 comprises:
Measurement and positioning, clears up in desired location; Anchor pole 501 is set and anchors into ground, and reserve anchoring section on ground; Assembling reinforcement, and anchoring section and adjacent reinforcing bar binding are fixed; Template is set, casting concrete, basis of formation structure.
Assembling reinforcement construction requirement is as follows, 1) arrangement of reinforcement is the Double Faces to Install; Stirrup reinforcing bar adopts the reinforcement fabrication of HRB400 φ 10; 2) thickness of protection tier 50mm, adopts stone material cushion block, cushion block spacing 500 × 500mm, and blossom type is arranged; 3) reinforcing bar must not cut off, and at pre-embedded bolt place, bar spacing local directed complete set walks around reserved location; 4) people's goods elevator basis is anchored mutually with standard section of tower crane reinforcement foundation, makes basis form an entirety.
Should be noted during concrete construction: 1) base concrete: underlying strength grade is according to design calculation structure, and C35 cement concrete is selected in unification.2) vibrate: concrete is with spreading out and putting on vibrating, and wooden darby strikes off plasterer's trowel along slope and extrudes water light, near the balcony comparatively high 2 ~ 3cm of far-end.3) maintenance: paving plastic film moisture-keeping maintaining immediately, and apparent temperature situation repaves 1 ~ 2 layer of insulation straw screen or mat quilt, curing time is 14 days.
During anchor pole 501 is constructed, bolthole diameter gets 3 times of anchor pole muscle body diameter, but the anchor pole muscle body being not less than 1 times adds 50mm.Anchor pole muscle body inserts the length of basic design, should meet the anchorage length requirement of reinforcing bar.Anchor pole muscle body adopts hot rolled ribbed bars, and strength of cement mortar should not lower than 30MPa, and pea gravel concreten intensity is not less than C30.Before grouting, bolthole is cleaned out.In the present embodiment, design 20 rockbolts altogether, anchor rod effective length 7.0m and 9.0m, wherein outside adopts the anchor pole of effective length 7.0m, innerly adopts effective length 9.0m anchor pole, and protruded length is about 1.5m, is quincunxly arranged symmetrically with.
The pull out force that in anchor rod foundation, single anchor rod is born, should check by following formula:
N ti = F k + G k n - M xk y i Σ y i 2 - M yk x i Σ x i 2
Wherein: F k---during corresponding to the standard combination acted on, act on the vertical force on basic end face, get 379.4kN here.G k---basis deadweight and on soil deadweight, get 1693.4kN here.M xk, M yk---calculate by the standard combination of effect the moment values acting on the bottom of foundation centre of form, here because load is symmetrical, and basis is symmetrical, so the two is 0, therefore all rockbolt stress can think identical.R t---single anchor rod anti-pulling capacity eigenwert, get R here t=f ka=400000 × 3.14 × 0.025 2÷ 4=196.25kN, R k---anchor rod ultimate anti-pulling capacity standard value, get R here k=π d ∑ q sk, il i=3.1416 × 0.1 × 180 × 7=398.84kN, brings formula into:
N t = F k + G k n - M xk y i Σ y i 2 - M yk x i Σ x i 2 = 379.4 + 1693.4 32 = 64.775 kN Safety factor is 5.
Due to therefore meet requirements.
The design of anchor pole 501 is summarized: the rod body material of finish rolling deformed bar as anchor pole selecting Φ 25, anchor pole aperture is anchor pole Φ 100mm, body of rod effective length is 7.0m, 9.0m, body of rod protruded length is 1.5m (actual protruded length because consider unify colligation with reinforcing bar in basis), and Anchor Agent mainly adopts cement mortar.Anchor pole is by 90 ° of settings.After this people's Cargo Lift and standard section of tower crane strengthening of foundation anchor bolt construction, first fix with nut and anchor plate, when follow-up concrete foundation construction, anchor plate reclaims, and in anchor rod body and basis, reinforcing bar is unified colligation and fixed.
Anchor bolt construction process: 1) driller insertion, according to site operation situation, makes full use of field condition, rig installation requirement level, firm, executes in drill-through journey and should check at any time.2) creep into mode, boring adopts D100 rig pore-forming, and penetration rate strictly controls according to use rig performance and anchoring stratum, prevents boring distortion and reducing, causes cast anchor difficulty or other contingency.3) drilling process, performs site operation record to situations such as the states of creeping into (the pressure of the drill, drilling speed).When creeping into phenomenon in case of collapse hole etc. is bad, must stop immediately to bore, carry out grouting for braced wall process (grouting pressure 0.3 ~ 0.5MPa) in time, after cement wash initial set, cleaning bottom of hole creeps into again, to guarantee that attachment point anchor force meets the demands.4) aperture hole depth, boring aperture, hole depth are not less than design value, and aperture deviation≤± 20mm, hole depth permissible variation is+200mm.For guaranteeing bolthole diameter, require that the actual bit diameter that uses must not be less than design aperture.For guaranteeing the bolthole degree of depth, require that actual drilling depth is greater than more than projected depth 0.1m.5) bolthole cleaning, creeps into after reaching projected depth, can not stop immediately to bore, the brill 1 ~ 2 minute of seeking to stable.Borehole wall must not have heavy quarrel and water body viscous, must clean out, after boring completes, outside rock dust in hole is removed and portalled by use high pressure air (blast 0.2 ~ 0.4MPa), in order to avoid reduce the bond strength of cement mortar and hole wall Rock And Soil.6) anchor bar body makes and installs, and this common bolt body of rod adopts diameter 25mm essence to prick deformed bar, bore diameter 100mm, and 90 ° of angles are arranged.Common bolt arranges one group of reinforcing bar to medium-height trestle along anchor pole axis direction every 1.0m, ensures that the protective layer thickness of anchor pole is not less than 25mm.The anticorrosion employing mopping of dowel tail end, painting wet goods anti-corrosion measure process.Before installation, guarantee that every root reinforcing bar is straight, eliminate rust, degrease, anchor hole numbering is again conscientiously checked before skyhook body, confirm errorless after use high-pressure blast aperture blowing again, manually slow anchor bar body is put into hole, measures with steel ruler the rock-bolt length that hole exposes outside, calculate rock-bolt length in hole (control errors ± 50mm within the scope of), guarantee the effective length of anchor pole.7) slip casting, common bolt adopts total length slip casting, and during slip casting, first high velocity, low pressure is from the bottom of hole, and after cement mortar is overflowed from aperture, then low speed heavy pressure is from aperture slip casting.After once noting discontented or slip casting, produce sedimentation, supplement slip casting, till filling.Grouting pressure is 0.3 ~ 0.5MPa, and grouting amount must not be less than calculated amount, and injecting paste material selects P.O42.5 Portland cement and the even mixing of fine sand material, and slurry strength grade is 30MPa.Grouting pressure, slip casting quantity and slip casting time are determined according to the volume of anchoring body and anchoring strata condition.8) anchor plate, sealing off and covering anchorage are installed, according to the scar situation of orifice area, cut the weathered rock on top layer before installation in advance, and use mortar levelling.Guarantee during installation that anchor plate contacts closely knit with screed-coat after plate, adopt yellow ground filling gap therebetween if desired.After anchor plate installation, pad, nut are installed, reach fastening nut after intensity until injecting cement paste.Diameter of phi 25mm essence according to anchor pole reinforcing bar pricks deformed bar, and the open pore size of anchor plate need meet and also can be able to anchor on anchor plate through perforate hole, and this anchor plate open pore size is fixed tentatively as Φ 30mm; Expose that anchor pole reinforcing bar need to unify colligation firm with the basic part reinforcing bar of subsequent construction.
After setting up basic design 50, attachment basis 20 is set on basic design 50, standard section of tower crane is adopted to be described to adhere to basis 20, the TC5610 column crane mast section selecting Zhong Lianchong section to produce is as attachment basis 20, for elevator 30 provides support, select the crane lifting TC5610 of 80t, installation steps comprise, 1, tower crane is fixed base pitch installation in position on tower crane, with pre-buried anchor pin tower crane fixed base pitch and tower crane is connected and fixed.2, levelness and squareness≤1 ‰ that base pitch fixed by adjustment tower crane are measured.3, the long standard knot EQ for 2.8m of a joint is arranged on tower crane to fix on base pitch.The long standard knot E for 2.8m of one joint is arranged on mounted standard knot EQ.4, installation code joint E is repeated, until tower crane installation.5, then field engineering test and examination is carried out.
The installation method that the present invention is attached to the jacking system of section also comprises, and attachment basis 20, by wall-attaching equipment 206 support and connection section 10, shown in composition graphs 5 and Fig. 6, comprising:
Multiple anchoring piece 103 is anchored in the attachment point place of section 10;
In the end winding support anchor plate 104 of multiple anchoring piece 103;
Again attached wall seat is set on anchor plate 104;
The first support tube and the second support tube is fixedly installed on attachment basis 20, first support tube and the coupling end of the second support tube on section 10 away from, the end of the first support tube and the second support tube is connected and fixed with the attached wall seat on corresponding section 10 respectively.
For guaranteeing the steadiness adhering to basis 20, the strong point position on section 10 arranges anchoring piece, and in respective range, spray the levelling section of concrete, guarantees the uniform force of the strong point.The angle that anchors into of anchoring piece is set to 19 degree, and the axial tension standard value of anchoring piece and design value can be calculated as follows:
n a=rQN ak, Nak--anchor pole axial tension standard value (KN) in formula, Na-anchor pole axial tension design value (KN), horizontal pull standard value (KN) suffered by Htk-anchor pole, gets attached wall part maximum axial value of thrust 189.13kN; A-anchor pole inclination angle (°), rQ-partial safety factor for load, desirable 1.30, obtain Na=260KN, can meet the demands.Anchoring piece reinforcing steel area should meet following formula requirement: a in formula s-anchor pole reinforcing steel area (m 2); ξ 2-dowel tension service factor, provisional anchor pole gets 0.92; γ 0-slope project important coefficient; f y-dowel tensile strength design value (KPa).Solve A s=9.0839 × 10-4.Show that anchoring piece muscle body need select diameter to be greater than 28.9mm, therefore, this anchoring piece body of rod is intended selecting Φ 32 STRTHD steel.The anchoring depth on anchoring piece and stratum should meet following formula requirement, 1a-anchoring depth (m) in formula, this anchor pole is full length fastening; D-anchoring body diameter (m), the bore diameter of this anchor pole is anchoring body diameter, boring aperture Φ 100mm.According to comparatively hard rock, frb-stratum and anchoring body bond strength eigenwert (KPa), consider that frb gets 600KPa.ξ 1-anchoring body and soil layer bond service factor, get 1.33 to interim anchor pole.Solve anchoring depth and get 8.5m, each attachment point arranges 4 anchoring pieces, can meet anchor force requirement.The preliminary design overview of anchoring piece, select the rod body material of STRTHD reinforcing bar as anchoring piece of Φ 32, body of rod effective length is 8.5m, and body of rod protruded length is 0.5m, and Anchor Agent mainly adopts cement grout.Consider that anchor pole is domatic perpendicular to precipice, by 19 ° of settings.According to precipice present situation scar cranny development situation and precipice fluctuating situation, anchor plate steel plate is 800mm × 600mm × 30mm steel plate, can according to precipice rise and fall present situation piecemeal install.
The construction method that section 10 arranges anchoring piece 103 is identical with the construction method of anchor rod 501 of constructing at ground 60 place, difference is, after last anchoring piece 103 is constructed, anchoring piece 103 and anchor plate 104 are welded and fixed by the reinforcing bar of four of attachment point place anchoring pieces 103 by 4 Φ 12, weld bead height is 6mm.In section construction anchoring procedure, utilizing field condition to provide driving surface as far as possible, when not possessing the situation in construction working face, setting up scaffold construction platform, for section construction anchoring provides basis.
Scaffold construction:
(1) material of scaffold
Scaffold adopts φ 48.3 × 3.6 steel pipe, and it is smooth that steel tube surface is straight, the crack that do not have, scab, layering, dislocation, firmly curved, burr, impression and have the dark above road plan of 0.5mm.The unified yellow paint of steel pipe, bridging is yellow black warning coloration.Pull-up rod member adopts φ 25 round steel.Fastener adopts the supporting right-angle coupler of φ 48.3 steel pipe, turn to fastener and to clasp.The quality of fastener should meet the regulation of national standard " steel tube scaffold clasp " GB15831, and old fastener should carry out quality inspection before using, have crack, distortion forbid use, occur that the bolt of stripped thread must be changed.Newly, old fastener all should carry out the process of anti-embroidery.The bamboo basketry plate that foot plank adopts mao bamboon to make, forbids to use mildew and rot, that rotten, rupture strength is low bamboo basketry.Dense mesh screen adopts flame retardant type Dense mesh screen, the area of every 100cm2 is no less than 2000 orders.
(2) distribution of scaffold
According to engineering characteristic and construction requirement, this engineering adopt land the attached wall of many row's scaffolds successively contraction type set up, to guarantee the safety, quality, the schedule requirement that meet engineering.The uniform live load of scaffold is considered by structure construction scaffold, and construction uniform load value is 3.0kN/m2, no over-loading during use.Scaffold operating surface and side slope distance are 400mm, and in scaffold, vertical rod is from side slope distance as more than 400mm, inside chooses protection, guarantee from hole span from 400mm.
(3) floor type fastener steel tube many rows scaffold:
1) set up from the support attachment point position of position, bottom, people's Cargo Lift hole and land double tube-legs hand cradle, two vertical rod height 6m. scaffold advance 1.0m, 45 ° of transfers are 1.0m, step pitch 1.8m, set up along the attached wall of people's Cargo Lift strong point.
2) because side slope is 71 ° of slopes, support body shrinks according to the rolling shape of precipice.
3) drawknot point is arranged:
1. the drawknot at precipice position: the reinforced anchor bolt setting up the degree of depth 0.5 to the 1.0m degree of depth at precipice position does fulcrum, with support body steel-pipe welding, intends every 3 meters and highly arranges one anchor pole drawknot.2. top drawknot: intend arranging the corresponding drawknot point of steel rope drawknot to bottom support body from grade beam position, top, precipice.Intend every 6 meters and one steel rope drawknot is highly set.
(4) landing leg hand cradle construction requirement:
1) operating procedure: 1. ground under smooth scaffold tubes feet; 2. scaffold tubes feet is laid; 3. vertical rod also lays bar of sweeping the floor simultaneously; 4. horizon bar is set up; 5. bridging and interim drawknot is set up; 6. railing, skirting board are installed; 7. bamboo basketry is spread; 8. Dense mesh screen is hung; 9. safety precaution is set up.
2) requirement of vertical rod brace foundation is landed:
1. on ground basal plane, build the concrete layer of 100mm, ground must be smooth; 2. on smooth ground, lay scaffold tubes feet, feet adopts 8# channel-section steel, and scaffold tubes feet all should accurately be placed on position line, and base answers bracing wire straightening.3. bottom 6m highly adopts pair vertical rod, and vertical rod will be seated in scaffold tubes feet, scaffold tubes feet length be not less than 2 across.
3) vertical rod is set up and should be met the following requirements:
1. the steel pipe that external diameter is different should be not used in combination; 2. landing leg hand cradle vertical pole ' s span 1.0m, transfer 1.0m, interior vertical rod is apart from cheating wall 0.4m, the reliable side slope of interior vertical rod; 3. the vertical rod advance that must specify by arrangement and method for construction and transfer are set up, and when interior vertical rod is greater than 400 apart from side slope distance, adopts little cross bar to lengthen to side slope direction, add diagonal brace.
4) vertical equity bar is set up and should be met the following requirements:
1. vertical equity bar is arranged on inside vertical rod, the length of steel pipe should not be less than three across; 2. vertical equity bar adopts right-angle coupler to be fixed on transverse horizontal bar, spaced set, and spacing is 0.25 ~ 0.3m; 3. vertical equity bar adopts and connects clasp, the joint of two adjacent vertical equity bars should not be arranged on synchronous or same across interior, the distance that asynchronous or difference staggers in the horizontal direction across two adjacent joints is not less than 50mm, and each connector center should be less than 1/3 of advance to the distance of nearest major joint;
5) set up and should meet the following requirements to bar of sweeping the floor in length and breadth:
1. major joint place must arrange a transverse horizontal bar, with right-angle coupler snapping and forbid remove.The width between centers of two right-angle couplers in major joint place is not more than 150mm.The base of every root vertical rod upwards should be arranged in length and breadth to bar of sweeping the floor at 200mm place, fixes with right-angle coupler and vertical rod; 2. the transverse horizontal bar at non-master place in work layer, the spacing according to the needs of supporting bamboo basketry is arranged, and maximum spacing is not more than 1/2 of advance; 3. transverse horizontal bar is located at the below of vertical equity, and all vertical rods and vertical equity bar intersection must arrange a transverse horizontal bar, forbids to remove arbitrarily;
6) set up bridging should meet the following requirements;
1. the full facade of bridging is arranged continuously, and layout should be even, and bridging steel pipe answers bracing wire to set up, and is all connected with vertical rod with rotary buckle with outer vertical rod junction.2. bridging is arranged on outside scaffold upright rod, and rod member joint adopts overlap joint to connect, and its lap of splice is 1000mm, is no less than 3 rotary buckles and fixes, constant spacing 1000mm.3. per pass bridging is crossed over vertical rod and be should be 4-6 root, is 45 ° of-60 ° of angles with vertical equity bar.
7) wall-connecting piece should meet the following requirements
Wall-connecting piece should near major joint, and the distance departing from major joint is not more than 300mm, is greater than 300mm, arranges little cross bar at interim drawknot place and inside and outside vertical rod junction as major joint distance concrete layer balances.
Wall-connecting piece and scaffold building are synchronously arranged.
8) set up railing should meet the following requirements:
1. the height 1.2m of railing is gone up, lower rail height 0.6m; 2. foot guard plate adopts nine clamping plate to make, and is painted color separation, height 0.2m; 3. the inner side that railing, lower rail, foot guard plate are all located at outer vertical rod is gone up.
9) bamboo basketry foot plank is laid perpendicular to vertical equity bar direction by its main bamboo reinforcement, and adopts docking tiling, and the galvanized steel wire of four angle application diameter 1.2mm is fixed on vertical equity bar.Bamboo basketry is repaved after must adding twice neck bar between inside and outside leger.The full paving of bamboo basketry every layer together.
10) fastener is installed and should be met the following requirements:
1. fastener specification must be identical with outer diameter of steel pipes; 2. bolt tightening torsional moment is not less than 40N.m, and is not more than 65N.m; 3. 150mm is not more than at the phase mutual edge distance of the right-angle coupler of major joint place fixed lateral horizon bar, vertical equity bar, bridging, horizontal diagonal brace etc., the center-point of rotary buckle; 4. fastener openings is docked or inwardly upward; 5. the length that fastener side edge thereof is stretched out in each rod member termination is not less than 100mm.
After attachment basis 20 is attached to section 10, the king-post 301 of elevator 30 is set in the both sides on attachment basis 20 again, king-post 301 is passed through attached wall part 303 support and connection in attachment basis 20, specifically comprise: shown in composition graphs 2 and Fig. 7, while king-post 301 is installed, interval arranges attached wall part 303, arranges connecting element 204, arrange connecting element 204 and comprise in the position of attachment basis 20 corresponding attached wall parts 303:
Angle steel 2041 is provided, screw rod is welded in respectively the two ends of angle steel 2041 and exposes one section and screw togather end; Be erected on by angle steel 2041 on attachment basis 20, the two ends correspondence of angle steel 2041 connects the position of the attached wall part 303 on king-post 301;
There is provided two channel-section steels 2042, channel-section steel 2042 is provided with through hole and is connected otic placode 205, by the screw rod on angle steel 2041 through the through hole on corresponding channel-section steel 2042, by nut screw togather expose screw togather end, two channel-section steels 2042 are anchored on the two ends of angle steel 2041.The end that two channel-section steels 2042 are relative is also fixed with an angle steel 2041, this angle steel 2041 is fastening by the screw rod attaching nut at two ends, the channel-section steel 2042 at tension two ends, make the channel-section steel 2042 at two ends be close to the outside face on attachment basis 20, angle steel 2041 also plays the effect against supporting to the channel-section steel 2042 at two ends.
Channel-section steel 2042 is fixed with and connects otic placode 205, attached wall part 303 is fixedly connected with this connection otic placode 205.This attached wall part 303 comprises bar shaped frame 3031 and ladder-shaped frame 3032, and bar shaped frame 3031 one end and ladder-shaped frame 3032 are bolted connection, and bar shaped frame 3031 is connected with the minor face of ladder-shaped frame 3032, and the other end and king-post 301 are bolted connection.The other end of ladder-shaped frame 3032, the namely base of ladder-shaped frame 3032, the both sides on base are installed with adapter plate respectively, and this adapter plate has been fastened by bolts pipe link, connection otic placode 205 on pipe link correspondence attachment basis 20, pipe link is with to be connected otic placode involutory and be bolted connection.King-post 301 arranges an attached wall part 303 at interval of 6 meters to 9 meters, adopt bolt and pin by attached wall part 303 respectively be connected otic placode 205 and king-post 301 couples together, for king-post 301 provides a supporting role.
After king-post 301 sets, the elevator 302 of elevator 30 is installed on the guide rail of king-post 301, then debugs.According to the actual position of upper limit position switch and three-phase limit switch, mounting and adjusting king-post 301 top flap, block.Then drop test is carried out: (1), when carrying out drop test, has not allowed people in cage; Before drop test, guarantee that the brake operation of electrical motor is normal.(2) in cage, rated load is loaded on.Cut off main power source, by the access of the cable of drop test button box by drop test dedicated terminals.(3), near the electric appliance box cable of test button box being fixed on cage, by suitable place, button box is put into ground station.Guarantee that cable can not be stuck when carrying out drop test.(4) withdraw all personnel in cage, shut whole cage door and fence gate; Close main power source, presses button test button box having upper up symbol, drives cage to rise the height of overhead about 10M.(5) press button test button box having lower down symbol, do not unclamp.Motor brake is opened, and cage starts free fall, until reach test speed, safe falling apparatus action, checks cage.The qualified braking coasting distance of safe falling apparatus is 0.3-1.2M.(note: if safe falling apparatus also to be stopped incessantly cage in overhead the stand place of more than 3M of cage, decline button will be decontroled immediately.Drg and brake application braking, prevent cage from hitting the end.(6) safe falling apparatus is resetted.(7) test cable is pulled down.
By the reset after safety anti-falling device action after test: (1) safe falling apparatus, after drop test and in normal running, often one-off occurs, all need to carry out reset work to safe falling apparatus.Continuation is forbidden to operate elevator before safe falling apparatus does not reset.(2) inspection before safe falling apparatus reset: whether the brake operation of (3) electrical motor is normal; Turbine box and coupler work whether normal.(4) whether each guide roller work is normal.(5) backgear and tooth bar whether working properly.(6) whether the micro-switch in safe falling apparatus is working properly, and before reset, by sending instruction upwards, cage should not start.(7), after the every inspection before resetting is errorless, first cut off the electricity supply; (service instructions that dispatches from the factory with reference to safe falling apparatus) removes the bolt of safe falling apparatus bonnet and bonnet removes bolt, use special wrench rotary copper nut, until the end of instruction pin flushes (now micro-switch should connect circuit) with safe falling apparatus aft end face.(8) bolt is loaded onto, bonnet and bolt; Switch on power, drive cage upwards to run 20 to 30CM, the centrifugal-block of safe falling apparatus is resetted.Cage just can normal operation input.
Elevator 30 is debugged as follows:
(1) environment for use of construction elevator is :-20 ~+40 DEG C, and wind speed is less than 20m/ second.
(2) check general supply voltage, voltage deviation should in 380V ± 5% scope.
(3) check the lubrication circumstances of each drive disk assembly, each parts all should charging-up lubricant oil fat again.Construction elevator in using regularly lubricates.First the sand-lime of lubricant housings should be cleaned out before lubrication work.After construction elevator uses a week first (or running 50 hours after) should by the oil change in reductor similar fresh oil.
(4) check that cage and counterweight track have accessible.
(5) wear pattern of gear is checked.
(6) test of each limit switch is carried out successively: single, double cage door switch upper and lower limit bit switch emergency stop switch.
Shown in composition graphs 1, after installing elevator 30, then steel platform 40 is set in the attachment top of 20, basis and the top of section 10, is provided to the walkway of elevator 30.Arrange steel platform 40 to comprise: shown in composition graphs 8 and Fig. 9, the top place surrounding outer wall in attachment basis 20 is fixedly connected with stiffening plate 201, and stiffening plate 201 is fixedly welded on the outer wall on attachment basis 20 by reserved plug welding hole 2011; Lay supporting steel plate 202 in the top on attachment basis 20 and be welded and fixed again; By stiffener 2013 fastening support steel plate 202 and stiffening plate 201; Arrange pre-embedded steel slab at the top of section 10, the top place of section 10 is provided with retaining wall, is embedded with pre-embedded steel slab when constructing retaining wall; Girder steel 203 is set up on supporting steel plate 202 and pre-embedded steel slab, and be welded and fixed with supporting steel plate 202 and pre-embedded steel slab junction bottom girder steel 203, the platform steel plate of steel platform 40 is layed on girder steel 203, and is welded and fixed with girder steel 203, just define steel platform.
Building hoist internal channel problem is led to for solving top, hole workmen, special project design is carried out to building hoist walkway, top, hole, to be embedded in hole, design one end, walkway fends off on cob wall that pre-embedded steel slab is for bearing, the other end take standard section of tower crane as the steel structure walkway of bearing.
Walkway is designed to single supported beam steel structure passage, as follows according to on-the-spot actual measurement design parameters: girder steel width is 1.6m, steel berm width is 3.8m, bearing center width 1.6m, aisle allows live load to get 5KN/m for the sake of assurance, walkway design calculation utilizes MIDAS to carry out finite element analysis computation, and people's Cargo Lift aisle steel platform system considers the Load Combination of dead load, live load and wind loading, obtains the deformation values of each component in structural system.Effect two kinds of situations of live load: one considers its stepless action, i.e. live load balanced distribution; Another kind is that live load acts between girder and between the secondary beam of girder and an edge direction, namely overbalance distributes.
This walkway steel platform is erected at hole end standard section of tower crane to push up on precipice retaining wall bearing built-in fitting with hole, apart from about 22 meters, aisle steel platform area about 80 sq m, span is large, people's Cargo Lift basis is to the about 50m of hole heights of roofs, for aloft work, dangerous large, ground is taked to assemble integral lifting, weight about 14 tons after this people's Cargo Lift aisle steel platform and integrally assembling, adopt 2 the colligation liftings of a suspension centre, use steel rope colligation, vapour hangs erect-position, and to suspension centre distance swinging radius about 14 meters, (steel platform suspension centre distance is cheated cob wall bearing distance of fending off and is about 12 meters, consider retaining wall hole wall fugitiveness, in order to Hoisting Security, automobile erect-position need shrink back about 1 to 2 meter), hanging erect-position swinging radius and vapour heavy property list of slinging according to vapour need select the wheel crane of 100 tons to lift, 16 tons of wheel cranes are selected in ground assembling.Concrete steel platform construction step comprises:
(1) surveying setting-out: engineer's spirit level is to cheat benchmark 50 line on the podium steel column of top for benchmark, measure 2 bearing embedded board absolute altitudes, and the unified elevation line is as calculated got to standard section of tower crane side, with ink fountain horizon on bullet on standard section of tower crane, as the absolute altitude foundation of the installation of girder steel connecting panel, error should be less than 2mm.Get standard section of tower crane line of centers and built-in fitting line of centers longitudinally draws a longitudinal centerline, as the datum line of longitudinal girder, error should be less than 3mm.Draw the cross central line that vertical with longitudinal centerline, sag should more than 3 ".As the datum line of horizontal girder steel.
(2) built-in fitting and standard section of tower crane are checked and accepted: carry out built-in fitting position according to drawing and carry out an acceptance inspection, as overproof, should be rectified and improved by unit in charge of construction.Standard section of tower crane squareness accompanying by building hoist need meet the requirements < 4/1000 in addition, and tower body must be firm, and checks and accepts signature through Party A, management.
(3) putting up platform: set up temporary operating platform in the appropriate place near installation site, as workmen's standing operation platforms such as welding tower body connecting panels.
(4) welding of girder steel connecting panel: according to put elevation line and datum line, first welds the connecting panel on standard section of tower cranes all on drawing.
(5) ground assembling:
1) after needed for walkway steel platform, component is transported to scene, with the unloading of 16T wheel crane in lifting region, according to drawing by the order successively ground assembling of first for steel platform girder to secondary beam.
2), after girder centering, secondary beam, horizontal support and the steel angle stiffening rib are installed successively, also can be more right by artificial group for lighter, the discrepancy in elevation of secondary beam and girder is not more than 2mm.Steel platform framework group to after carry out Integral correction, high strength bolt is twisted fastening end, carry out welding of secondary beam and girder, first carry out self-inspection by we personnel, meet the requirements Hou Bao supervisor, jointly carry out inspection by management, Party A and our personnel to check, to steelframe level, absolute altitude, in length and breadth line of centers, Weld Quality Inspection, should code requirement be met.Pinpoint the problems and process in time, rectification is to qualified.
3) rust cleaning mopping can be carried out after the assay was approved.Though have in installation process that should eliminate rust again in the position of damage, brush first pass priming paint to non-mopping, weld bond place and oneself swiped through paint, brush second time priming paint after paint film is dry, measures film thickness and reaches Design Requirement Drawing after dry.
4) checkered steel plate is laid: can lay checkered steel plate after steel platform framework all completes, and checkered steel plate is laid to be manually laid in master.Be routed on corresponding girder steel according to figure paper size by the checkered steel plate of correspondence, checkered steel plate can adopt and be welded and fixed.Brush anti-rust paint is mended at weld bond place.
5) integral hoisting: select 100 tons of wheel cranes to adopt 2 liftings, steel rope colligation after completing for overall group, first examination is hung, and then lifting is installed, and be connected with standard section of tower crane place high strength bolt, retaining wall bearing place welds with built-in fitting; The girder steel at standard section of tower crane place is installed after integral hoisting completes again, after installation, lays checkered steel plate.Brush anti-rust paint is mended at last weld bond place.
The beneficial effect that the present invention is attached to the installation method of the jacking system of section is:
Adopt elevator to be attached to the installation method on attachment basis, solve the problem that elevator cannot be supported in section, and when this structure is set, corresponding calculating has been carried out to the bearing capacity on attachment basis, has met construction requirement, there is safety control.By adhering to the employing on basis, the mounting structure of elevator is made to have simple feature.
Elevator adopts attached wall part and coordinating of connecting element to realize with the connection on attachment basis, attached wall part applies pulling force to the channel-section steel on connecting element, the effect between two channel-section steels, channel-section steel being played to support is located at by angle steel on connecting element, the pulling force of both sides can be offset, reduce the pulling force that attachment basis is subject to, guarantee the stability of adhering to basis, and the connection structure of attached wall part and connecting element is easy for installation, stabilized structure, effectively ensure that the overall steadiness of elevator.
The top on attachment basis and the top of section are provided with steel platform, use, provide the passage from profile head to elevator as walkway, facilitate passing through of people and goods.This steel putting up platform is between attachment basis and the pre-embedded steel slab of section, weld with attachment basis and pre-embedded steel slab respectively, this mode set up, steel platform is made all only to produce pressure to attachment basis and pre-embedded steel slab, attachment basis is made only to bear pressure, improve the safety and stability on attachment basis, this pressure is transmitted by overlap joint diffusion simultaneously, reduces the stress rupture for weld nugget.
Wall-attaching equipment is adopted to realize support and connection between attachment basis and section, effective support on attachment basis is realized by wall-attaching equipment, firm for guaranteeing the support of wall-attaching equipment, section is provided with multiple anchoring piece in attachment point place, effectively improves the steadiness of support.
Below embodiment is to invention has been detailed description by reference to the accompanying drawings, and those skilled in the art can make many variations example to the present invention according to the above description.Thus, some details in embodiment should not form limitation of the invention, the present invention by the scope that defines using appended claims as protection scope of the present invention.

Claims (11)

1. be attached to a jacking system for section, it is characterized in that, comprising:
Attachment basis, be erected on section sidepiece and with described section support and connection; And
Elevator, comprises king-post and the elevator along described king-post up-and-down movement, and described king-post is erected on the basic sidepiece of described attachment and support and connection basic with described attachment.
2. be attached to the jacking system of section as claimed in claim 1, it is characterized in that, include two elevators, be symmetrically set in the both sides on described attachment basis respectively.
3. be attached to the jacking system of section as claimed in claim 1, it is characterized in that, between described attachment basis and the top of described section, be erected with steel platform; The top place surrounding outer wall on described attachment basis is provided with stiffening plate, lays supporting steel plate, be provided with multiple stiffener between described supporting steel plate and described stiffening plate on described attachment basis; The top of described section is provided with pre-embedded steel slab; Described pre-embedded steel slab and described supporting steel plate is added is provided with girder steel; Be equipped with platform steel plate on described girder steel and form described steel platform.
4. the jacking system being attached to section as described in claim 1 or 3, it is characterized in that, described king-post interval is fixed with attached wall part, the upper corresponding described attached wall part in described attachment basis is provided with connecting element, described connecting element is provided with connection otic placode, and described connection otic placode is fixedly connected with described attached wall part.
5. be attached to the jacking system of section as claimed in claim 4, it is characterized in that, described connecting element comprises two root type steel parts and Duo Gen fastener, and described shaped steel part is located at the upper side connecting described attached wall part, described attachment basis respectively, and described shaped steel part is provided with connection otic placode; The two ends of described fastener are provided with screw rod, and are placed between two described shaped steel parts, and described screw rod respectively correspondence is worn described shaped steel part and screwed togather by nut fastening.
6. be attached to the jacking system of section as claimed in claim 1, it is characterized in that, described attachment basis is fixed with wall-attaching equipment, described section has multiple anchoring piece in the junction anchoring be connected with described wall-attaching equipment, anchor plate is fixed with on multiple described anchoring piece, described anchor plate is provided with attached wall seat, and described attached wall seat is connected with the end winding support of described wall-attaching equipment.
7. the installation method being attached to the jacking system of section according to any one of claim 1 to 6, is characterized in that, comprising:
Attachment basis with described section support and connection is set on ground; And
Set up elevator, the king-post of described elevator is erected on ground, and support and connection are in described attachment basis, are installed on described king-post by the elevator of described elevator, make described elevator along described king-post up-and-down movement.
8. be attached to the installation method of the jacking system of section as claimed in claim 7, it is characterized in that, the top being also included in the basic top of described attachment and described section arranges steel platform:
Top place surrounding outer wall in described attachment basis is fixedly connected with stiffening plate;
On described attachment basis, lay supporting steel plate and fix;
Between described supporting steel plate and stiffening plate, multiple stiffener is set;
In the top of described section, pre-embedded steel slab is set;
Girder steel is set up on described pre-embedded steel slab and described supporting steel plate,
On described girder steel, lay platform steel plate, described platform steel plate and described girder steel are connected and fixed, form described steel platform.
9. be attached to the installation method of the jacking system of section as claimed in claim 7, it is characterized in that, described king-post support and connection comprise in described attachment basis:
On king-post, interval arranges attached wall part;
Connecting element is set in the position of the upper corresponding described attached wall part in described attachment basis, connection otic placode is set on described connecting element;
Described attached wall part is fixedly connected with described connection otic placode.
10. be attached to the installation method of the jacking system of section as claimed in claim 9, it is characterized in that, connecting element is set in the position of the upper corresponding described attached wall part in described attachment basis and comprises:
Angle steel is provided, screw rod is welded in respectively the two ends of described angle steel and exposes one section and screw togather end;
Be arranged at by described angle steel on described attachment basis, the end correspondence of described angle steel connects the position of described attached wall part;
There is provided two channel-section steels, on described channel-section steel, corresponding described screw rod offers through hole, and the position of corresponding described attached wall part is provided with connection otic placode;
By described screw rod through the through hole on corresponding described channel-section steel, and described in being screwed togather by nut, screw togather the two ends that two described channel-section steels are anchored on described angle steel by end respectively.
11. installation methods being attached to the jacking system of section as claimed in claim 7, it is characterized in that, described in the basic support and connection of described attachment, the method for section comprises:
Multiple anchoring piece is anchored in the attachment point place of described section;
In the end winding support anchor plate of multiple anchoring piece;
Again attached wall seat is set on described anchor plate;
Be fixedly installed wall-attaching equipment in described attachment basis, the end of described wall-attaching equipment is connected and fixed with corresponding described attached wall seat.
CN201410399694.0A 2014-08-14 2014-08-14 Lifting device attaching to special-shaped section and mounting method of lifting device Active CN104261232B (en)

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CN201610559261.6A CN106193098B (en) 2014-08-14 2014-08-14 Foundation structure for reinforcing lifting gear
CN201610559263.5A CN106193099B (en) 2014-08-14 2014-08-14 The support construction of attached base in lifting gear
CN201610559222.6A CN106185543B (en) 2014-08-14 2014-08-14 The construction method of attached base and section support connection in lifting gear
CN201410399694.0A CN104261232B (en) 2014-08-14 2014-08-14 Lifting device attaching to special-shaped section and mounting method of lifting device
CN201610556983.6A CN106115417B (en) 2014-08-14 2014-08-14 The connection structure of elevator and attached base in lifting gear
CN201610557022.7A CN106088141B (en) 2014-08-14 2014-08-14 For the construction method for the foundation structure for reinforcing lowering or hoisting gear

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CN201410399694.0A CN104261232B (en) 2014-08-14 2014-08-14 Lifting device attaching to special-shaped section and mounting method of lifting device

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CN201610559222.6A Division CN106185543B (en) 2014-08-14 2014-08-14 The construction method of attached base and section support connection in lifting gear
CN201610556983.6A Division CN106115417B (en) 2014-08-14 2014-08-14 The connection structure of elevator and attached base in lifting gear
CN201610557022.7A Division CN106088141B (en) 2014-08-14 2014-08-14 For the construction method for the foundation structure for reinforcing lowering or hoisting gear
CN201610559261.6A Division CN106193098B (en) 2014-08-14 2014-08-14 Foundation structure for reinforcing lifting gear

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CN201610559261.6A Active CN106193098B (en) 2014-08-14 2014-08-14 Foundation structure for reinforcing lifting gear
CN201610556983.6A Active CN106115417B (en) 2014-08-14 2014-08-14 The connection structure of elevator and attached base in lifting gear
CN201610557022.7A Active CN106088141B (en) 2014-08-14 2014-08-14 For the construction method for the foundation structure for reinforcing lowering or hoisting gear
CN201610559263.5A Active CN106193099B (en) 2014-08-14 2014-08-14 The support construction of attached base in lifting gear

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CN201610557022.7A Active CN106088141B (en) 2014-08-14 2014-08-14 For the construction method for the foundation structure for reinforcing lowering or hoisting gear
CN201610559263.5A Active CN106193099B (en) 2014-08-14 2014-08-14 The support construction of attached base in lifting gear

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CN106115417B (en) 2018-07-27
CN106193098B (en) 2018-09-04
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CN104261232B (en) 2017-02-22
CN106185543A (en) 2016-12-07

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