CN104294840B - Tower crane fixed feet regulating system and construction thereof - Google Patents
Tower crane fixed feet regulating system and construction thereof Download PDFInfo
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- CN104294840B CN104294840B CN201410470164.0A CN201410470164A CN104294840B CN 104294840 B CN104294840 B CN 104294840B CN 201410470164 A CN201410470164 A CN 201410470164A CN 104294840 B CN104294840 B CN 104294840B
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- 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
- E02D27/42—Foundations for poles, masts or chimneys
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2200/00—Geometrical or physical properties
- E02D2200/11—Height being adjustable
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Abstract
A kind of tower crane fixed feet regulating system and construction thereof, this system is fixed on concrete cushion, comprise four Bracket for steel bar, the fixed feet be connected on four Bracket for steel bar, the top of fixed feet is connected with location stock, is connected with Frame for supporting parallel pipes and holds in the palm with oil between location stock and concrete cushion.Method of the present invention is easy, and efficiency of construction is high, before concrete foundation is built, utilizes oil holder to regulate the levelness of fixed feet, after embedded fixed supporting foot is accurately located, starts concreting basis; In the casting process of concrete foundation, as found, fixed feet position deviation exceedes regulation allowed band, then adjusted the position of fixed feet by constructor by the holder of adjustment oil and the relative altitude of vertical steel pipe in time, ensure the accurate location of embedded fixed supporting foot.Application of the present invention widely, is applicable to the tower body degree control during construction of all kinds tower crane, also can be used as the installation of other large equipment base fixed feet.
Description
Technical field
The present invention relates to a kind of tower crane regulating system and construction method thereof.
Background technology
The accurate location and installation of tower crane fixed feet be tower body vertical Reliable guarantee, particularly seem in the high tower construction of executive information systems particularly important.Ensure tower machine verticality, key is checked on from basis, only ensure that the levelness of four fixed feet in base section bottom, and the verticality of tower machine just can be guaranteed.In Practical Project, as long as ensure that the maximum discrepancy in elevation at any two angles of four fixed feet is less than 3mm, just can by its degree control within 0.2%.
Traditional tower crane fixed feet fixing means fixed feet and concrete cushion is fixed by stone bolt, then with reinforcement foundation frame welding, the skeleton being and template or basic unit are connected firmly.This method seems very firm, but can find in the application process of reality, when no matter installing, how accurate location is, in the process of later stage concreting, all can be subject to the vibrations of the construction machineries such as concrete flowing, vibrator and personnel the impact of factor such as to walk about, fixed feet is caused to produce slight displacement because of the vibrations of above-mentioned various factors, make the horizontal error of tower crane become large, be difficult to the verticality ensureing tower machine, thus after causing, difficulty installed by tower crane.
Summary of the invention
The object of this invention is to provide a kind of tower crane fixed feet regulating system and construction thereof, the levelness that solve tower crane fixed feet is wayward, be difficult to the technical problem that ensures; And solve the problem how guaranteeing tower crane fixed feet levelness in construction.
For achieving the above object, the present invention adopts following technical scheme:
A kind of tower crane fixed feet regulating system, be fixed on concrete cushion, comprise four Bracket for steel bar, the fixed feet be connected on four Bracket for steel bar, the top of described fixed feet is connected with location stock, is connected with Frame for supporting parallel pipes and holds in the palm with oil between described location stock and concrete cushion; The crossbeam that described location stock comprises four root posts and is connected between column, the lower end of column is connected with fixed feet upper end by otic placode; Described Frame for supporting parallel pipes comprise be connected with oil holder vertical steel pipe, be connected to joint steel pipe between horizontal steel pipe that horizontal steel pipe between vertical steel pipe and cross be connected to offside; Described oil holder is made up of screw rod, the supporting plate that is screwed onto the adjusting nut on screw rod and is fixed on screw tip, and described supporting plate jacking is in the below of location stock, and the lower end of described screw rod is inserted vertical steel pipe and clamped by the adjusting nut at vertical steel pipe mouth of pipe place.
Described Bracket for steel bar is the space framework be welded to each other by transverse reinforcement, longitudinal reinforcement, and the diagonal angle, each side of described space framework is welded with oblique reinforcing bar.
The below on every one side of described location stock connects two oil holders in interval respectively.
Concrete pad is lined with between the bottom of described vertical steel pipe and concrete cushion.
Apply a tower crane construction method for described tower crane fixed feet regulating system, concrete steps are as follows:
Step one, according to constructure scheme requirement, concrete cushion carries out line setting, the installation site of mark fixed feet.
Step 2, colligation subfoundation cage of reinforcement on concrete cushion.
Step 3, according to the position of pre-aligned fixed feet, installs four Bracket for steel bar, is connected with diagonal brace reinforcing bar between Bracket for steel bar and subfoundation cage of reinforcement.
Four fixed feet and Bracket for steel bar are connected one to one fixing by step 4.
Step 5, will locate stock and be connected with four fixed feet, four root posts of described location stock will be equipped with control point.
Step 6, colligation upper strata reinforcement foundation skeleton on subfoundation cage of reinforcement.
Step 7, Frame for supporting parallel pipes is installed between location stock and concrete cushion hold in the palm with oil, and carry out lightning-arrest down lead construction, all there are two vertical steel pipes and screw rod in every one side of described location stock, the lower end of described screw rod is inserted in vertical steel pipe, and is fixed by the adjusting nut at vertical steel pipe mouth of pipe place.
Step 8, utilizes adjusting nut adjusting screw(rod) and the relative turnover amount of vertical steel pipe, regulates the levelness of location stock, thus control the verticality of fixed feet.
Step 9, is adjusted to the levelness of fixed feet and verticality after within the scope of allowable variation, starts concreting basis 8.
Step 10, in the process on concreting basis, the position absolute altitude change of all-the-way tracking monitoring fixed feet, at any time by regulating oil holder Altitude control absolute altitude.
Step 11, after concrete foundation has been built, measures the levelness of fixed feet and the deviation of verticality.
Step 12, cover film in concrete foundation, carries out maintenance.
Step 13, after concrete foundation condensation, carries out the repetition measurement before tower body installation.
Step 14, removes location stock and oil holder.
Step 15, is fixedly connected with the tower body of tower crane with fixed feet, successively builds tower body, completes tower crane and installs.
The top of described fixed feet is higher than the end face 130 ~ 170mm of concrete foundation.
Compared with prior art the present invention has following characteristics and beneficial effect:
Instant invention overcomes that traditional tower crane fixed feet horizontal error is large, tower body verticality is difficult to the shortcoming that ensures, solve the technical problem of how fine adjustment fixed feet levelness and verticality, guarantee tower body later stage installation quality.
Tower crane fixed feet regulating system of the present invention, structure is simple, easy to make, cost is low, adopts Bracket for steel bar to support fixed feet, and installs location stock on the top of fixed feet, bottom, stock four limit, location is equipped with two cover vertical steel pipes and oil holder shelving, and can accurately control planeness and the verticality of fixed feet before concreting in casting process by adjusting oil holder, before base concrete final set, accurately controlling the planeness of fixed feet, ensure that fixed feet installation accuracy; The top of fixed feet higher than concrete foundation end face about 150mm, vertical steel pipe and concrete foundation either flush, after concrete foundation has been built, oil holder and location stock all detachable after have enough to meet the need use, provide cost savings, improve repeat usage.
Method of the present invention is easy, efficiency of construction is high, utilize tower crane fixed feet regulating system, solve the level of fixed feet and the problem of perpendicular positioning in tower crane installation process: before concrete foundation is built, oil holder is utilized to regulate the levelness of fixed feet, after embedded fixed supporting foot is accurately located, start concreting basis; In order to avoid in concrete foundation casting process, cause fixed feet slight displacement due to reasons such as Construction Vibrations thus cause its deviation to exceed the situation appearance of regulation allowable variation, in the casting process of concrete foundation, the control point on the stock of location is observed by staff, monitor the change in location situation of fixed feet at any time, as found, fixed feet position deviation exceedes regulation allowed band, then adjusted the position of fixed feet by constructor by the holder of adjustment oil and the relative altitude of vertical steel pipe in time, ensure the accurate location of embedded fixed supporting foot.
Widely, be applicable to the tower body degree control during construction of all kinds tower crane, also can be used as the installation of other large equipment base fixed feet, its result of use is obvious, and quality safety is guaranteed in application of the present invention.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention will be further described in detail.
Fig. 1 is the structural representation of tower crane fixed feet regulating system of the present invention.
Fig. 2 is the structural representation of Frame for supporting parallel pipes of the present invention.
Fig. 3 is the structural representation of the connection that vertical steel pipe of the present invention holds in the palm with oil.
Reference numeral: 1-Bracket for steel bar, 2-fixed feet, 3-locate stock, 4-Frame for supporting parallel pipes, 4.1-vertical steel pipe, the horizontal steel pipe of 4.2-, 4.3-joint steel pipe, the holder of 5-oil, 6-concrete cushion, 7-concrete pad, 8-concrete foundation.
Detailed description of the invention
Embodiment is shown in Figure 1, this tower crane fixed feet regulating system, be fixed on concrete cushion 6, comprise four Bracket for steel bar 1, the fixed feet 2 be connected on four Bracket for steel bar 1, the top of described fixed feet 2 is connected with location stock 3, is connected with Frame for supporting parallel pipes 4 and holds in the palm 5 with oil between described location stock 3 and concrete cushion 6; Described Bracket for steel bar 1 is the space framework be welded to each other by transverse reinforcement, longitudinal reinforcement, and the diagonal angle, each side of described space framework is welded with oblique reinforcing bar; The crossbeam that described location stock 3 comprises four root posts and is connected between column, the lower end of column is fixed with otic placode, and described otic placode and fixed feet pass through pinned connection; The below on every one side of described location stock 3 connects two oil holders 5 in interval respectively.
Shown in Figure 2, described Frame for supporting parallel pipes 4 comprise be connected with oil holder 58 diameter 50mm, wall thickness 3.5mm vertical steel pipe 4.1, to be connected to by fastener 4 diameter 50mm between vertical steel pipe 4.1, wall thickness 3.5mm horizontal steel pipe 4.2 and be connected to offside by fastener cross horizontal steel pipe 4.2 between 2 diameter 50mm, wall thickness 3.5mm joint steel pipe 4.3; Directly contact with concrete cushion for preventing Frame for supporting parallel pipes, cause concrete foundation infiltration hidden danger, concrete pad 7 is lined with between the bottom and concrete cushion of vertical steel pipe 4.1, described concrete pad 7 is of a size of 100mm × 100mm × 100mm, and concrete pad adopts the pea gravel concreten of the material identical with concrete foundation and intensity to make.
Shown in Figure 3, described oil holder 5 is made up of the screw rod 5.1 of diameter 24mm, long 700mm, the supporting plate 5.3 that is screwed onto the adjusting nut on screw rod 5.1 and is fixed on screw rod 5.1 top, described supporting plate 5.3 holds in the palm the below at location stock 3, and the lower end of described screw rod 5.1 is inserted vertical steel pipe 4.1 and clamped by the adjusting nut 5.2 at vertical steel pipe mouth of pipe place.
Apply a tower crane construction method for described tower crane fixed feet regulating system, concrete steps are as follows:
Step one, according to constructure scheme requirement, concrete cushion 6 carries out line setting, the installation site of mark fixed feet 2: the sideline of the good fixed feet of bullet and center line, mark the position of fixed feet, foundation pad marks angle point with red paint.
Step 2, colligation subfoundation cage of reinforcement on concrete cushion 6.
Step 3, according to the position of pre-aligned fixed feet 2, four Bracket for steel bar 1 are installed: Bracket for steel bar 1 utilizes the grade III steel muscle leftover bits and pieces of diameter 25mm to be welded, Bracket for steel bar 1 can bear certain pressure at right angle, the center distance of Bracket for steel bar 1 is 2m, fixes between four Bracket for steel bar 1 with bar connecting; Or fix between Bracket for steel bar 1 with subfoundation cage of reinforcement by welding diagonal brace reinforcing bar.
Step 4, four fixed feet 2 and Bracket for steel bar 1 are connected one to one fixing, the top of described fixed feet 2 is higher than the end face 150mm of concrete foundation 8, ensure that positioning sleeve chord position is on concrete foundation, its dismounting turnover is facilitated to use: fixed feet is installed by professional, position must be accurately, and four fixed feet level height difference control in 2mm, after the position of fixed feet and level height difference adjustment reach requirement, fixed feet is fixed, should be steady, firm, smooth after fixed feet is in place.
Step 5, location stock 3 is connected with four fixed feet 2, location cage plate 3 is welded by the thick fixing steel plate of 20mm and 10# i iron, supports the use, four root posts of described location stock 3 are equipped with control point with fixed feet: the position at control point will be convenient to staff and copy survey.
Step 6, colligation upper strata reinforcement foundation skeleton on subfoundation cage of reinforcement.
Step 7, Frame for supporting parallel pipes 4 is installed between location stock 3 and concrete cushion 6 and holds in the palm 5 with oil, and carrying out lightning-arrest down lead construction: the every of described location stock 3 all has two vertical steel pipes 4.1 and screw rod 5.1, described supporting plate 5.3 holds in the palm the below at location stock 3, the lower end of described screw rod 5.1 is inserted in vertical steel pipe, adjust fixed feet bolt horizontal level and absolute altitude, and fixed by the adjusting nut at vertical steel pipe mouth of pipe place, by the horizontal level of screw rod, after absolute altitude and verticality adjust to specification allowable variation scope, by fastener, horizontal steel pipe and joint steel pipe and vertical steel pipe are linked as entirety.
Step 8, utilizes adjusting nut 5.2 adjusting screw(rod) 5.1 and the relative turnover amount of vertical steel pipe 4.1, regulates the levelness of location stock 3, thus control the verticality of fixed feet.
Step 9, is adjusted to the levelness of fixed feet and verticality after within the scope of allowable variation, starts concreting basis 8: calibration and structure acceptance after-pouring concrete accurately, must must be checked through transit in fixed feet location.
Step 10, in the process on concreting basis 8, the position absolute altitude change of all-the-way tracking monitoring fixed feet 2, at any time by regulating oil holder Altitude control absolute altitude: in concreting process, the absolute altitude change of survey crew all-the-way tracking monitoring fixed feet position, as found, displacement exceedes allowable variation namely more than 2mm, carrys out elevation control in time by the relative altitude of adjusting screw(rod) and vertical steel pipe, to make the position of fixed feet in whole concreting process, absolute altitude in the monitoring state all the time.
Step 11, after concrete foundation 8 has been built, measures the levelness of fixed feet and the deviation of verticality: the height of concrete foundation 8, not higher than the end face of vertical steel pipe, is removed to ensure that later stage oil holder is smooth.
Step 12, cover film in concrete foundation 8, carries out maintenance.
Step 13, concrete foundation 8 carries out the repetition measurement before tower body installation, the strength grade C40 of described concrete foundation 8, seepage-resistant grade P6 after condensing.
Step 14, removes location stock 3, horizontal steel pipe, joint steel pipe and oil holder 5.
Step 15, is fixedly connected with the tower body of tower crane with fixed feet 2, successively builds tower body, completes tower crane and installs.
Key Quality Control of the present invention: fixed feet reinforcement system must have schematic design, material therefor specification, size, quantity, spacing, joint connection manner must meet designing requirement; Engineers and technicians draw fixed feet detail drawing of installation, and constructor's construction in line with the drawings, Quality Inspector strictly inspects for acceptance by drawing.The verticality of fixed feet, horizontal level and elevation location all will within control ranges; For ensureing that fixed feet precision meets quality requirement, after fixed feet reinforces acceptance(check), necessary its deviation of tracking measurement in concreting process, finds skew adjustment in time; The work in everies such as every technique check, concealment acceptance are performed before concreting.During concreting, forbid directly to impact fixed feet and reinforcement system thereof, vibrating spear can not act directly on fixed feet and reinforcement system thereof; Carry out surface of base aftermath in time after concreting, before concrete final set, carry out repetition measurement work, guarantee the position of fixed feet, verticality and planeness; Before construction, confide a technological secret; In work progress, full-time Quality People be had to exercise supervision inspection to each operation, be rigid in checking up.Survey crew follows the tracks of repetition measurement.
Safety construction measure of the present invention: three level security education should be carried out after constructor marches into the arena, construction of can marching into the arena after safety training is qualified, and construction teams and groups are carried out safety and told somebody what one's real intentions are; Set up item safety management system, sets up production safety management network, is responsible for by program manager comprehensively, and implements to teams and groups, individual, and project sets up full-time security official, is responsible for the safety inspection of job site, scents a hidden danger and removes in time; Project management department sets up safety and sums up regular meeting system, will open weekly the safe regular meeting of project personnel, accomplish thorough examination weekly, and construction teams and groups, before arranging construction task every day, all will carry out safety and tell somebody what one's real intentions are; Execute artificial member to march into the arena required hard hat required at all times, work high above the ground wears safety belt, and after drinking, constructor forbids to enter job site; Security official pinpoints the problems and signs and issues rectification Letter of Instructions in time to on-the-spot inspection, and supervise related personnel to rectify and improve every day.Rectify and improve qualified after can construct, fine be should give to person of a serious nature; Strict equipment management, checks and regulates various rope, cable in time, and is under lock and key.On-the-spot switchbox should have special messenger to be responsible for operation inspection, and temporary electricity should have full-time electrician to be responsible for operation, and other personnel forbid privately to construct.The equipment such as construction giant, electric blender, Churn drill, compressor, lifting rope, hanging basket must be equipped with complete, and performance checking is intact, use clean up in time and keep properly afterwards.Forbid privately to open construction elevator, violator will punish severely; Control measures to constructor: reporting system of asking for leave is set up at scene, workman leaves building site and must ask for leave to project leader, need to report back after leave of absence after going back to building site, constructor must obey every rules and regulations of project, and what obedience project management department formulated eats, play place time rule.The civilized construction in building site, security regulations, quality specifications and workman's system of fines are linked up with; Keep cleaned in situ, material is piled up neatly, cleans up and transfer warehouse to after facility construction.Neat with sack shipment to the foreign material produced in construction, After Hours clean out scene; Finished product protection system: finished product protection work is carried out in job site, avoids colliding with.
Main environment safeguard measure of the present invention: strictly control the plant noise emissions such as electric welding machine, lifting machine, concrete mixer, vibrating head; The poisonous wastes such as the waste liquid of the instrument such as the oily gloves that job site uses, cotton yarn, packing container, useless welding rod, cleaning bolt fastening must not arbitrarily discharge, preventing pollution soil, water body; Carry out the Hazardous Chemical Substances containment measures such as Concrete admixtures, machine oil, anticorrosive paint, preventing pollution soil.
Economic benefit of the present invention: such as, certain experimental project, total 19, QTZ60/18 tower crane, adopts fixed feet positioning construction process device and traditional bolt positioning device expense to contrast:
Fixed feet positioner is adopted to produce expense:
Bracket for steel bar material comprises Bracket for steel bar height 550mm, adopts 8 600mm length and four long grade III steel muscle of 750mm, adds up to 7.8m, every meter heavy 3.85kg.Steel are pressed breaking-up price 2200 yuan/t and are calculated, then: 0.03 × 2200=66 unit; The expense of every portion tower crane Bracket for steel bar is: 66 × 4=284 unit.
Be positioned on concrete and can have enough to meet the need part location stock portion of material expense: the accurate location stock being arranged at the had enough to meet the need use above concrete can have enough to meet the need use for producer customizes, expense is 10000 yuan/cover, use can be had enough to meet the need 10 times, then each share the expenses: 1000 yuan by each location stock.
Steel pipe oil holder shelving expense: steel pipe: 8 ￠ 50 pre-buried steel pipe range 1200mm:1.2m × 4.0kg × 5 yuan/kg × 8=192 unit; Horizontal steel pipe and joint steel pipe, can have enough to meet the need use, amortization charge is disregarded; Oil holder, can have enough to meet the need use, amortization charge is disregarded; Fastener, can have enough to meet the need use, amortization charge is disregarded.
Fixed feet is installed labour cost and mechanically to be taken: each fixed feet location and installation need artificial 10 work days, 150 yuan/work day, crane selects 12t mobile crane, and each support uses 0.5 machine-team, machine-team takes unit price 1200 yuan/machine-team, then: 10 × 150+0.5 × 1200=2100 unit.
Every portion tower crane fixed feet installs that institute occurs manually, material, machinery expenses: 284+1000+192+2100=3576 is first.
And adopt conventional bolt bracing means to produce expense:
Fixed feet cost of materials: each fixed feet needs first to do concrete foundation pre-embedded anchoring bolts, each base concrete side amount is 0.5 cubic metre; Diameter 20 × 600 stone bolt four, concrete is by 400 yuan/m
3meter, stone bolt: 50 yuan/root, then: 0.5 × 4 × 400+50 × 4 × 4=1600 unit.
Location stock amortization charge: amortization charge is 1000 yuan.
Each fixed support is installed labour cost, mechanically to be taken: each fixed support positioner is installed needs artificial 25 work days, 150 yuan/work day, crane selects 12t mobile crane, and each support uses 1 machine-team, machine-team takes unit price 1200 yuan/machine-team, then: 25 × 150+1 × 1200=4950 unit.
Each bolt fixture occurs manually, material, machinery expenses: 1600+1000+4950=7550 unit
Steel pipe oil holder shelving fixed feet positioner and traditional reinforcing mode expense will be adopted to contrast:
Every portion tower crane fixed feet adopts steel pipe oil holder shelving positioner and traditional technique for fixing to contrast cost saving: 7550-3576=3974 unit; 19 tower crane cost saving: 3974 × 19=75906 units altogether.
Calculate from above, the economic benefit adopting steel pipe oil holder shelving positioner to produce is significant.
Social benefit of the present invention: steel pipe oil holder shelving positioner solves the reinforcing of traditional tower crane fixed feet and carries out disposable location to fixed feet with positioner before concreting, and the micro-displacement produced because of various working load and vibrations in concreting process and the defect of precise fine-adjustment cannot be carried out, make the fixed feet positioning precision of tower crane higher, decrease the expense of later stage shifting processing, easy to operate, safe and reliable, save the duration, and owing to ensure that construction quality, corporate image can be improved better, can promote the use of in large scale industry and civil building engineering.
Claims (6)
1. a tower crane fixed feet regulating system, be fixed on concrete cushion (6), comprise four Bracket for steel bar (1), the fixed feet (2) be connected on four Bracket for steel bar (1), it is characterized in that: the top of described fixed feet (2) is connected with location stock (3), be connected with Frame for supporting parallel pipes (4) between described location stock (3) and concrete cushion (6) and oilyly hold in the palm (5);
The crossbeam that described location stock (3) comprises four root posts and is connected between column, the lower end of column is connected with fixed feet upper end by otic placode; Described Frame for supporting parallel pipes (4) comprise be connected with oil holder (5) vertical steel pipe (4.1), be connected to joint steel pipe (4.3) between horizontal steel pipe (4.2) that horizontal steel pipe (4.2) between vertical steel pipe (4.1) and cross be connected to offside;
Described oil holder (5) is made up of screw rod (5.1), the supporting plate (5.3) that is screwed onto the adjusting nut on screw rod (5.1) and is fixed on screw rod (5.1) top, described supporting plate (5.3) jacking is in the below of location stock (3), and the lower end of described screw rod (5.1) is inserted vertical steel pipe (4.1) and clamped by the adjusting nut (5.2) at vertical steel pipe mouth of pipe place.
2. tower crane fixed feet regulating system according to claim 1, it is characterized in that: described Bracket for steel bar (1) is the space framework be welded to each other by transverse reinforcement, longitudinal reinforcement, the diagonal angle, each side of described space framework is welded with oblique reinforcing bar.
3. tower crane fixed feet regulating system according to claim 1, is characterized in that: every below of described location stock (3) connects two oil holder (5) in interval respectively.
4. tower crane fixed feet regulating system according to claim 1, is characterized in that: be lined with concrete pad (7) between the bottom of described vertical steel pipe (4.1) and concrete cushion (6).
5. application rights requires a tower crane construction method for the tower crane fixed feet regulating system in 1-4 described in any one, it is characterized in that concrete steps are as follows:
Step one, according to constructure scheme requirement, concrete cushion (6) carries out line setting, the installation site of mark fixed feet (2);
Step 2, at the upper colligation subfoundation cage of reinforcement of concrete cushion (6);
Step 3, according to the position of pre-aligned fixed feet (2), installs four Bracket for steel bar (1), is connected with diagonal brace reinforcing bar between Bracket for steel bar (1) and subfoundation cage of reinforcement;
Step 4, connects one to one fixing by four fixed feet (2) and Bracket for steel bar (1);
Step 5, will locate stock (3) and be connected with four fixed feet (2), four root posts of described location stock (3) will be equipped with control point;
Step 6, colligation upper strata reinforcement foundation skeleton on subfoundation cage of reinforcement;
Step 7, Frame for supporting parallel pipes (4) is installed between location stock (3) with concrete cushion (6) and oily holds in the palm (5), and carry out lightning-arrest down lead construction, all there are two vertical steel pipes (4.1) and screw rod (5.1) in every one side of described location stock (3), the lower end of described screw rod (5.1) is inserted in vertical steel pipe, and is fixed by the adjusting nut at vertical steel pipe mouth of pipe place;
Step 8, utilizes adjusting nut (5.2) adjusting screw(rod) (5.1) and the relative turnover amount of vertical steel pipe (4.1), regulates the levelness of location stock (3), thus control the verticality of fixed feet;
Step 9, is adjusted to the levelness of fixed feet and verticality after within the scope of allowable variation, starts concreting basis (8);
Step 10, in the process of concreting basis (8), the position absolute altitude change of all-the-way tracking monitoring fixed feet (2), at any time by regulating oil holder Altitude control absolute altitude;
Step 11, after concrete foundation (8) has been built, measures the levelness of fixed feet and the deviation of verticality;
Step 12, at the upper cover film of concrete foundation (8), carries out maintenance;
Step 13, after concrete foundation (8) condensation, carries out the repetition measurement before tower body installation;
Step 14, removes location stock (3) and oil holder (5);
Step 15, is fixedly connected with the tower body of tower crane with fixed feet (2), successively builds tower body, completes tower crane and installs.
6. the tower crane construction method of tower crane fixed feet regulating system according to claim 5, is characterized in that: the top of described fixed feet (2) is higher than the end face 130 ~ 170mm of concrete foundation (8).
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| CN201410470164.0A CN104294840B (en) | 2014-09-16 | 2014-09-16 | Tower crane fixed feet regulating system and construction thereof |
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| CN201410470164.0A CN104294840B (en) | 2014-09-16 | 2014-09-16 | Tower crane fixed feet regulating system and construction thereof |
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| CN201620422U (en) * | 2009-12-24 | 2010-11-03 | 赵正义 | Vertical connecting and positioning construction of tower structure and foundation concrete |
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| CN102134879A (en) * | 2011-01-12 | 2011-07-27 | 陕西建工集团第六建筑工程有限公司 | Embedding accuracy control construction method for embedded part of overlong equipment foundation platform |
| CN102535509A (en) * | 2010-12-28 | 2012-07-04 | 贵阳铝镁设计研究院有限公司 | Construction method of high-flatness equipment foundation and adjusting structure thereof |
| CN202787300U (en) * | 2012-07-29 | 2013-03-13 | 山西四建集团有限公司 | Control form for positions of foundation bolts of fixed tower crane |
| CN203096780U (en) * | 2013-01-14 | 2013-07-31 | 陈佐霞 | Straight-line electricity transmitting steel tower with rectification device |
-
2014
- 2014-09-16 CN CN201410470164.0A patent/CN104294840B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58164825A (en) * | 1982-03-25 | 1983-09-29 | Ishikawajima Harima Heavy Ind Co Ltd | Floor plate for foundation of climbing crane |
| KR20060116372A (en) * | 2005-05-09 | 2006-11-15 | 이현호 | Setting apparatus for transmission iron tower base |
| CN201620422U (en) * | 2009-12-24 | 2010-11-03 | 赵正义 | Vertical connecting and positioning construction of tower structure and foundation concrete |
| CN201809771U (en) * | 2010-10-06 | 2011-04-27 | 湖北省电力公司襄樊襄阳供电公司 | Positioning tool during pouring of iron tower foundation |
| CN102535509A (en) * | 2010-12-28 | 2012-07-04 | 贵阳铝镁设计研究院有限公司 | Construction method of high-flatness equipment foundation and adjusting structure thereof |
| CN102134879A (en) * | 2011-01-12 | 2011-07-27 | 陕西建工集团第六建筑工程有限公司 | Embedding accuracy control construction method for embedded part of overlong equipment foundation platform |
| CN202787300U (en) * | 2012-07-29 | 2013-03-13 | 山西四建集团有限公司 | Control form for positions of foundation bolts of fixed tower crane |
| CN203096780U (en) * | 2013-01-14 | 2013-07-31 | 陈佐霞 | Straight-line electricity transmitting steel tower with rectification device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104294840A (en) | 2015-01-21 |
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