CN203022020U

CN203022020U - Steel structure frame type tower crane foundation

Info

Publication number: CN203022020U
Application number: CN 201320022415
Authority: CN
Inventors: 相起兵
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-01-16
Filing date: 2013-01-16
Publication date: 2013-06-26
Anticipated expiration: 2023-01-16

Abstract

The utility model relates to the technical field of tower crane equipment and in particular relates to a steel structure frame type tower crane foundation. The steel structure frame type tower crane foundation comprises a main concrete foundation unit, a transition concrete foundation unit, an end concrete foundation unit and a prestressed steel strand connecting device, and is characterized in that the outer frames of the main concrete foundation unit, the transition concrete foundation unit and the end concrete foundation unit are respectively provided with a steel structure frame; and the steel structure frame is formed by fixedly connecting a transverse metal edge, a longitudinal metal edge and a vertical metal edge in a cross mode. The defects that the main concrete foundation unit, the transition concrete foundation unit and the end concrete foundation unit need special molds in the cast-in-place concrete process and lots of molds are required to be manufactured in the manufacturing process are overcome, the substantial technical problem that transport cost is high because large compartment area is occupied during supply transport, the total weight is heavy and large bearing capacity is required during long-distance transport is solved, and the steel structure frame type tower crane foundation has the advantages of novel structure, high safety performance, convenience in detachment and transport and the like.

Description

Steel structure frame formula foundation for tower crane

Technical field

The utility model relates to tower machine equipment technical field, specifically a kind of steel structure frame formula foundation for tower crane.

Background technology

at present, the tower machine that all pillar crane manufacturer of China produces all is not equipped with foundation for tower crane when dispatching from the factory, main cause is exactly that whole fixed basis too heavily is not suitable for transportation, split type combined type basic technology is immature, not as fixed cast-in-place basic safety, producer follows the attached portion of tower machine fixed basis to build construction drawing, using on-the-spot cast-in-situ concrete prefabricated by buying the user, though the basis of site prefabrication is safe and reliable, but all reuse being not suitable for hoisting transportation more than tens tons, tower machine of later every installing/dismounting just needs prefabricated once basis, manufacturing process labor intensive material resources, prefabricated basis is heavy and need to dig pit and bury.for addressing the above problem, it is on probation in some areas that existing a plurality of people had designed and produced respectively several combined types bases in recent years, the combined type basis can the dismounting Reusability because of it, the characteristics such as short-distance transport is convenient have been promoted the use of in some areas, representative have that Zhao Zhengyi submits to application number (98101471.2, 9810147.4, 200610002190.6, 200610067145.9, 201110146469.2, 201120183188.x) and the application number (200420080405.2 submitted to of Cong Weimin, 200510038753.2, 201110129155.1) above in constantly innovating and improving, being approved by people gradually, their major advantage is integral body to be weighed basis more than 40 tons can disassemble to open and be divided into some, being fit to short distance hoisting transportation to another place combination installation reuses, avoided the significant waste on disposable basis, saved by contrast certain concrete reinforcement resource, the part but its technology still has some deficits, also there are a plurality of potential safety hazards, there is the problem of the following aspects in comprehensive its structure: (1) single bolted structure is unreasonable, perishable difficult replacing, connecting pretightning force does not reach, the mode that single employing steel strand connect, safety firmly not, do not insure barrier, steel strand work long hours can be lax in situation, the outside slippage of easily weaving silk when ground tackle is reused, and be difficult for being examined discovery, (2) because modeling structure is too pursued the reduction ground bearing pressure, shearing force and the moment of flexure of having ignored the carrying of basic upper surface, the main stressed sectional area in structure gross thickness and upper surface is too little, and construction weight is excessively light, the weight of gene basis is directly proportional to anchorage, this just needs stack a large amount of ballast, bulk cargos or bury processing, has increased use cost, (3) the shearing-resistant member structure is unreasonable, weld together with embedded bar, the weld bond place only is embedded in the concrete of the 1cm degree of depth, the too little too simple pre-buried degree of depth of shear structure part is not enough, fragile when frequently dismounting is transported, and be embedded in the inner discovery that is difficult for checking, the difficult reparation, reliability is low, has potential safety hazard, (4) on the main body force structure, the many places prepared screw-bolt hole is arranged, reduced load-carrying properties and the application life of structure, (5) loaded down with trivial details because of its special Mechanical Builds, need a large amount of particular manufacturing crafts in manufacturing process, be not suitable for scattered microcommunity customer demand, it is various widely distributed that China has the microcommunity client of tower machine, so that shared toatl proportion is really quite large, has so just affected popularity rate, (6) shape of structure design is convenient not enough in when transportation, takies very much the compartment area, and floor space is too large when depositing, and all more than the twenty or thirty ton, remote supply cost height even surpasses several times of price costs to whole stylobate plinth weight, (7) there is weak part in Mechanical Builds, and in the repeated disassembled and assembled transportation, the easy collision cleft of widening angle, corner angle on basis is impaired, has had a strong impact on access times, require standard knot base horizontal error in 2mm during (8) due to installation tower machine, the tower machine must be extremely strict to the requirement on its basis in other words, any mishap can not be arranged, horizontal error surpasses 2mm just security incident might occur, from the safety this point, the structure of the prefabricated component composite assembly foundation for tower crane of analysis-by-synthesis prior art, has certain potential safety hazard, can not be fit to long-range strategy application life as railway, highway bridge, affect investment return, affected the saving amount of resource.

have applied for a kind of utility model patent of tandem tower crane foundation in the applicant and on July 20th, 2011 to China national office, it is provided with main concrete foundation, main concrete foundation center line outwards is serially connected with transition base unit and end base unit, main concrete foundation, the adjacent contact face of transition base unit and end base unit is respectively equipped with positioner, main concrete foundation, the transition base unit is located by connecting through positioner mutually with the end base unit, the end base unit, transition base unit and main concrete foundation level correspondence are provided with the zip preformed hole, the end base unit, transition base unit and main concrete foundation are passed the zip preformed hole through zip and are fixedly connected, be respectively equipped with anchor bolt box on end base unit and transition base unit, stone bolt passes the embedded nut of anchor bolt box lower end bottom main concrete foundation and is connected, the upper end is connected with tower machine bottom girder pressing plate, its deficiency is: 1, in the repeated disassembled and assembled transportation, the corner angle on basis and the easy collision cleft of positioner and impaired, had a strong impact on the stable of tower machine, 2, be respectively equipped with anchor bolt box on end base unit and transition base unit, shearing force and the bearing capacity of base unit have greatly been reduced, easily cause the base unit fracture, the generation that causes the accident, and stone bolt is changed wastes time and energy, 3, need a large amount of existing making of particular manufacturing craft during making, be not suitable for the microcommunity client, as when supplying with the client at a distance, it is too large that whole stylobate plinth takies the compartment area, gross weight is too heavy, cause freight too expensive.

Summary of the invention

The purpose of this utility model is to solve above-mentioned the deficiencies in the prior art, and a kind of novel structure is provided, and is safe and reliable, make, install, overhaul, dismantle simply, convenient transportation, cost of transportation is low, reuse labor and material saving, the steel structure frame formula foundation for tower crane of long service life.

The technical scheme that its technical problem that solves the utility model adopts is:

a kind of steel structure frame formula foundation for tower crane comprises main concrete foundation unit, transition concrete foundation unit, concrete foundation unit, end and prestress steel twist wire-connecting device is characterized in that main concrete foundation unit, the housing of transition concrete foundation unit and concrete foundation unit, end is respectively equipped with steel structure frame, and steel structure frame is by horizontal metal rib, vertical metal rib and perpendicular metal rib mutually intersect and are formed by fixedly connecting, and the client is according to steel structure frame, the direct concreting of accessory kit and drawing just can be completed making, and this has solved main concrete foundation unit, transition concrete foundation unit, concrete foundation unit, end needs special particular manufacturing craft in the cast-in-situ concrete process, and need the deficiency of a large amount of Mold Makings when making, take very much the compartment area when also having solved transportation simultaneously, the remote substantive technical problem that exceeds cost N times freight charges that needs large bearing capacity when transporting and cause of supplying with has reached novel structure, security performance is high, easy accessibility, convenient transportation, floor space is little, cost of transportation is low, long service life, the foundation for tower crane bearing capacity is large, economize on resources, the effect of energy-conserving and environment-protective.

the utility model can be between main concrete foundation unit and transition concrete foundation unit, be respectively equipped with fastener between transition concrete foundation unit and concrete foundation unit, end, fastener comprises the locking otic placode, connect otic placode, connecting bolt, connect bearing pin, cottor pin and setscrew nut, both sides, two ends, transition concrete foundation unit are respectively equipped with the locking otic placode, main concrete foundation unit surrounding is respectively equipped with the connection otic placode, the locking otic placode of both sides, inner corresponding transition concrete foundation unit, concrete foundation unit, end is respectively equipped with the connection otic placode, described locking otic placode is respectively by upper ear plate with being connected otic placode, the U-shaped plate that the arc junction plate of lower ear plate and upper ear plate and lower ear plate one end is fixedly connected and forms, the upper ear plate of U-shaped plate and lower ear plate correspondence are provided with perforation, and the arc junction plate of U-shaped plate is embedded in concrete, described connecting bolt one end is thread segment, the other end is provided with contiguous block, contiguous block is provided with connecting through hole, connecting bolt passes and connects otic placode and be fixedly connected with cottor pin with connecting through hole on contiguous block through connecting bearing pin with an end of connecting through hole, the gap that the other end passes in the middle of the locking otic placode is inconsistent fixing through setscrew nut and locking otic placode, make main concrete foundation unit, transition concrete foundation unit, the end further is fastenedly connected between the concrete foundation unit, make between each base unit and form dual link, ensured that horizontal direction can not have any loosening, make between the concrete foundation unit and bearing adverse circumstances (storm wind invasion and attack, brake rapidly descends, revolution brake rapidly, base unit and ground are uneven, displacement up and down can not appear in the time of the unfavorable factors such as the ground tackle of steel strand is loosening), avoided the gap occurring owing to adopting single steel strand to connect between each concrete unit of foundation for tower crane, cause horizontal error to surpass 2mm and the generation of security incident occurs.

The utility model also can be in main concrete foundation unit, the upper surface of transition concrete foundation unit and concrete foundation unit, end is respectively equipped with fastening otic placode, fastening otic placode is the U-shaped plate that the arc junction plate by upper ear plate, lower ear plate and upper ear plate and lower ear plate one end is fixedly connected and forms, the upper ear plate of fastening otic placode and lower ear plate correspondence are provided with perforation, and the arc junction plate of fastening otic placode is embedded in concrete, the bearing capacity of having avoided reserving many bolts hole on the base unit and having reduced foundation for tower crane has strengthened the lifting surface area of base unit upper surface.

the utility model also can be respectively equipped with detent or positioning boss on four joint faces of main concrete foundation unit, transition concrete foundation unit one end face and corresponding positioning boss or the detent of being provided with in main concrete foundation unit, the other end is provided with positioning boss or detent, the inner correspondence in concrete foundation unit, end is provided with detent or positioning boss, detent or positioning boss are inverse-T-shaped, it can be cross, also can be square, perhaps triangle, perhaps be trapezoidal, the cross section of detent or positioning boss can be " V " shape, also can be square, can also be curved, accurately in place with convenient dismounting repeatedly, simultaneously can also prevent displacement up and down, also guaranteed the levelness of foundation for tower crane bearing surface.

The utility model can be in main concrete foundation unit, the steel structure frame of transition concrete foundation unit and concrete foundation unit, end adopts truss shape formula structure, to guarantee that base unit carries enough large shearing force and moment of flexure, strengthened the non-deformability of main concrete foundation unit, transition concrete foundation unit and concrete foundation unit, end, simultaneously, saved the process of making arrangement of reinforcement, can directly carry out the concreting base unit, reach the effect simple, that bearing capacity is large of making.

The utility model has novel structure due to the employing said structure, and is safe and reliable, and make, install, overhaul, dismantle simply, convenient transportation, labor and material saving, cost of transportation is low, the advantages such as long service life.

Description of drawings

Fig. 1 is the structural representation of the utility model the first embodiment.

Fig. 2 is the structural representation of the utility model the second embodiment.

Fig. 3 is the trussed construction schematic diagram in main concrete foundation unit in the utility model the utility model, transition concrete foundation unit and concrete foundation unit, end.

Fig. 4 is main concrete foundation unit in the utility model, transition concrete foundation unit and the detent of concrete foundation unit, end joint face each other or the structural representation of positioning boss.

Fig. 5 is the structural representation of the front view of connecting bolt in the utility model.

Fig. 6 is the left view of Fig. 5.

Fig. 7 is the structural representation of locking otic placode in the utility model, connecting the front view of otic placode and fastening otic placode.

Fig. 8 is the top view of Fig. 7.

Reference numeral: main concrete foundation unit 1, transition concrete foundation unit 2, concrete foundation unit, end 3, horizontal steel strand 4, vertical steel strand 5, ground tackle 6, steel structure frame 7, horizontal metal rib 8, vertical metal rib 9, perpendicular metal rib 10, locking otic placode 11, connect otic placode 12, connecting bolt 13, connect bearing pin 14, cottor pin 15, setscrew nut 16, upper ear plate 17, lower ear plate 18, arc junction plate 19, thread segment 20, contiguous block 21, fastening otic placode 22, detent 23, positioning boss 24, truss type steel structure framework 25

The specific embodiment

Below in conjunction with accompanying drawing, the utility model is further illustrated:

as shown in drawings, a kind of steel structure frame formula foundation for tower crane comprises main concrete foundation unit 1, transition concrete foundation unit 2, concrete foundation unit, end 3 and prestress steel twist wire-connecting device, prestress steel twist wire-connecting device comprise horizontal steel strand 4, vertically steel strand 5 and ground tackle 6, main concrete foundation unit 1, transition concrete foundation unit 2, concrete foundation unit, end 3 respectively through horizontal steel strand 4 pass the transverse center hole and after vertically steel strand 5 pass the longitudinal center hole two ends fixing with ground tackle 6, it is characterized in that main concrete foundation unit 1, transition concrete foundation unit 2 and concrete foundation unit, end 3 are respectively equipped with steel structure frame 7, and steel structure frame 7 is by horizontal metal rib 8, vertical metal rib 9 and perpendicular metal rib 10 mutually intersect and are formed by fixedly connecting, and this has solved main concrete foundation unit 1, transition concrete foundation unit 2, concrete foundation unit, end 3 needs special particular manufacturing craft in the cast-in-situ concrete process, and the deficiency that needs a large amount of Mold Makings when making, take very much the compartment area when also having solved transportation simultaneously, and when depositing, floor space is too large, and the remote substantive technical problem that exceeds cost N times freight charges that needs large bearing capacity when transporting and cause of supplying with has reached novel structure, security performance is high, easy accessibility, convenient transportation, floor space is little, cost of transportation is low, long service life, the foundation for tower crane bearing capacity is large, economize on resources, the effect of energy-conserving and environment-protective.

the utility model can be between main concrete foundation unit 1 and transition concrete foundation unit 2, be respectively equipped with fastener between transition concrete foundation unit 2 and concrete foundation unit, end 3, fastener comprises locking otic placode 11, connect otic placode 12, connecting bolt 13, connect bearing pin 14, cottor pin 15 and

setscrew nut

16, 2 both sides, two ends, transition concrete foundation unit are respectively equipped with locking otic placode 11, main concrete foundation unit surrounding is respectively equipped with and connects otic placode 12, the locking otic placode 11 of 2 both sides, inner corresponding transition concrete foundation unit, concrete foundation unit, end 3 is respectively equipped with and connects otic placode 12, described locking otic placode 11 is respectively by upper ear plate 17 with being connected otic placode 12, the U-shaped plate that the arc junction plate 19 of lower ear plate 18 and upper ear plate 17 and lower ear plate 18 1 ends is fixedly connected and forms, the upper ear plate 17 of U-shaped plate and lower ear plate 18 correspondences are provided with perforation, and the arc junction plate 19 of U-shaped plate is embedded in concrete, described connecting bolt 13 1 ends are thread segment 20, the other end is provided with contiguous block 21, contiguous block 21 is provided with connecting through hole, connecting bolt 13 1 ends pass through connection bearing pin 14 connecting through hole and the cottor pin 15 that connect on otic placode 12 and contiguous block 21 and are fastenedly connected, the gap that the other end passes in the middle of locking otic placode 11 is inconsistent fixing through setscrew nut 16 and locking otic placode 11, make main concrete foundation unit 1, transition concrete foundation unit 2, further be fastenedly connected between concrete foundation unit, end 3, make between each base unit and form dual link, ensured that horizontal direction can not have any loosening, make between the concrete foundation unit and bearing adverse circumstances (storm wind invasion and attack, brake rapidly descends, revolution brake rapidly, base unit and ground are uneven, displacement up and down can not appear in the time of the unfavorable factors such as the ground tackle of steel strand is loosening), avoided the gap occurring owing to adopting single steel strand to connect between foundation for tower crane, cause horizontal error to surpass 2mm and the generation of security incident occurs.

the utility model can be in main concrete foundation unit 1, the upper surface of transition concrete foundation unit 2 and concrete foundation unit, end 3 is respectively equipped with fastening otic placode 22, fastening otic placode 22 is by upper ear plate 17, the U-shaped plate that the arc junction plate 19 of lower ear plate 18 and upper ear plate 17 and lower ear plate 18 1 ends is fixedly connected and forms, the upper ear plate 17 of fastening otic placode 22 and lower ear plate 18 correspondences are provided with perforation, and the arc junction plate 19 of fastening otic placode 22 is embedded in concrete, played the effect of firm connection tower machine, many bolts hole have been avoided reserving on base unit, installing hole and reduce the supporting capacity of foundation for tower crane, guaranteed stability of foundation.

the utility model also can be respectively equipped with detent 23 or positioning boss 24 on four joint faces of main concrete foundation unit 1, transition concrete foundation unit 2 one end faces and main concrete foundation unit 1 corresponding positioning boss 24 or the detent 23 of being provided with, the other end is provided with positioning boss 24 or detent 23, concrete foundation unit, end 3 inner correspondences are provided with detent 23 or positioning boss 24, detent 23 or positioning boss 24 are inverse-T-shaped, can be cross, it can be cross, also can be square, perhaps triangle, perhaps be trapezoidal, the cross section of detent 23 or positioning boss 24 can be " V " shape, also can be square, can also be curved, accurately in place with convenient dismounting repeatedly, simultaneously can also prevent displacement up and down, also guaranteed the levelness of foundation for tower crane bearing surface.

The utility model also can be in main concrete foundation unit 1, the steel structure frame of transition concrete foundation unit 2 and concrete foundation unit, end 3 adopts respectively truss structure, to guarantee shearing force and the moment of flexure of base unit carrying, strengthened the compressive strength of main concrete foundation unit 1, transition concrete foundation unit 2 and concrete foundation unit, end 3, simultaneously, saved the process of making arrangement of reinforcement, can directly carry out the cast-in-place concrete foundation unit, reach the effect simple, that bearing capacity is large of making.

Embodiment one, and as shown in Figure 1, a kind of concrete steps of manufacture craft of steel structure frame formula foundation for tower crane are as follows:

1, get the raw materials ready: according to the bearing capacity size of foundation for tower crane, press respectively four horizontal metal ribs 8 in the main concrete foundation of one of cutting stock unit 1 of drawing, four vertical metal ribs 9 and four perpendicular metal ribs 10, the ten horizontal metal ribs 8 of the six roots of sensation in four transition concrete foundation unit 2, the vertical metal rib 9 of ten six roots of sensation and the perpendicular metal rib 10 of ten six roots of sensation, the ten horizontal metal ribs 8 of the six roots of sensation in concrete foundation unit, four ends 3, the vertical metal rib 9 of ten six roots of sensation and the perpendicular metal rib 10 of ten six roots of sensation, main concrete foundation unit 1, horizontal metal rib 8 in transition concrete foundation unit 2 and concrete foundation unit, end 3, vertical metal rib 9 and perpendicular metal rib 10 can be selected angle-steel blanking, again respectively with horizontal metal rib 8, standby after the two ends boring of vertical metal rib 9 and perpendicular metal rib 10, prepare two steel pipes, use when being used for reserving the steel strand hole, above-mentioned horizontal metal rib 8, vertical metal rib 9 and perpendicular metal rib 10 are bundled, and connecting bolt 13 can be contained in sack, or it is standby to be transported to the appointment project site in chest, facilitate transportation, saved the great number freight charges, reduced cost,

2, field fabrication: after transporting to the job site when getting the raw materials ready, need to carry out pouring concrete, pouring concrete divides three phases in order, phase I is first respectively with main concrete foundation unit 1, the horizontal metal rib 8 of transition concrete foundation unit 2 and concrete foundation unit, end 3, vertical metal rib 9 and perpendicular metal rib 10 are fixed into steel structure frame through the bolt scene, make it to form needed cube of basic model, steel structure frame adopts the truss frame structure, perhaps be welded with reinforcing cage in steel structure frame, perhaps weld arrangement of reinforcement, stick template at the steel structure frame external surface again, the steel pipe of reserving steel strand is run through into template by direction, confirmation without careless mistake after fluid concrete, when being about to solidify typing, extracts concrete steel pipe out, stripping after main concrete foundation unit formation, carry out the work of second stage, the steel pipe of reserving steel strand is run through into wooden model by direction be connected with in type central part hole, confirm errorlessly without careless mistake after-pouring concrete, concrete is about to solidify when typing and extracts steel pipe out, removes wooden model after unit 2 moulding of transition concrete foundation, carry out the work of phase III, brush isolation oil or stick the isolation oilpaper in the detent 23 of the outer end joint face of transition concrete foundation unit 2, the steel structure frame of concrete foundation unit, end 3 is relied on respectively transition concrete foundation unit 2, steel structure frame in concrete foundation unit, end 3 adopts the truss frame structure, perhaps welded reinforcement cage in steel structure frame, perhaps weld arrangement of reinforcement, and stick template in its outside, the steel pipe of reserving steel strand runs through into template and with the steel strand preformed hole of in type transition concrete foundation unit 2 by direction and is connected, confirm errorless without careless mistake after-pouring concrete, when being about to solidify typing, extracts concrete steel pipe out, stripping after the structural member moulding, in the concreting process, the steel strand inserting hole of reserving must remain on basic central area and vertically non-intersect, and the inserting hole passage when being combined into integral body must keep clear and can not be crooked.3 for the second time concreting and for the third time before concreting first in the joint face upper berth of moulding layer of plastic film, separate smoothly when being convenient to dismantle the basis, after all reaching strength grade Deng all concrete components, can carry out the prestressed steel strand, make this foundation for tower crane by adopting steel structure frame, facilitated transportation, the great number freight charges have been saved, reduced cost, this steel structure frame formula foundation for tower crane, in the repeated disassembled and assembled transportation, due to main concrete foundation unit 1, the corner angle of transition concrete foundation unit 2 and concrete foundation unit, end 3 adopt steel structure frame, avoided the generation of collision damaged phenomenon, increased application life.

Embodiment two, and as shown in Figure 2, a kind of concrete steps of manufacture craft of steel structure frame formula foundation for tower crane are as follows:

1, get the raw materials ready: according to the bearing capacity size of foundation for tower crane, press respectively four horizontal metal ribs 8 in the main concrete foundation of one of cutting stock unit 1 of drawing, four vertical metal ribs 9 and four perpendicular metal ribs 10, the ten horizontal metal ribs 8 of the six roots of sensation in four transition concrete foundation unit 2, the vertical metal rib 9 of ten six roots of sensation and the perpendicular metal rib 10 of ten six roots of sensation, the ten horizontal metal ribs 8 of the six roots of sensation in concrete foundation unit, four ends 3, the vertical metal rib 9 of ten six roots of sensation and the perpendicular metal rib 10 of ten six roots of sensation, main concrete foundation unit 1, horizontal metal rib 8 in transition concrete foundation unit 2 and concrete foundation unit, end 3, vertical metal rib 9 and perpendicular metal rib 10 can be selected angle steel, band iron, indented bars or round steel blanking, again respectively with horizontal metal rib 8, standby after the two ends boring of vertical metal rib 9 and perpendicular metal rib 10, make processing connecting bolt 13 standby, the T shape mould of making base unit upper surface T-slot, T shape mould preferably adopts two sections mutual square crossings of angle steel to weld together, prepare two steel pipes, use when being used for reserving the steel strand hole, above-mentioned horizontal metal rib 8, vertical metal rib 9 and perpendicular metal rib 10 are bundled, and connecting bolt 13 can be contained in sack, or it is standby to be transported to the appointment project site in chest, has facilitated transportation, has saved the great number freight charges, has reduced cost,

2, field fabrication: after transporting to the job site when getting the raw materials ready, need to carry out pouring concrete, pouring concrete divides three phases in order, phase I is first respectively with main concrete foundation unit 1, the horizontal metal rib 8 of transition concrete foundation unit 2 and concrete foundation unit, end 3, vertical metal rib 9 and perpendicular metal rib 10 are fixed into steel structure frame through the bolt scene, make it to form needed basic model, be welded with arrangement of reinforcement in steel structure frame, stick template at the steel structure frame external surface again, fix respectively a T shape mould with iron wire on four joint faces of main concrete foundation unit, during use, the T shape mould outside of belly is close on wooden model or punching block, the U-shaped plate that connects otic placode in fastener is welded on respectively on arrangement of reinforcement on each framework, 18 of the upper ear plate 17 of U-shaped plate and lower ear plates are exposed at outside steel structure frame, then the steel pipe that will reserve steel strand runs through into template by direction, confirmation without careless mistake after fluid concrete, when being about to solidify typing, extracts concrete steel pipe, stripping and inverse-T-shaped mould after main concrete foundation unit formation out, carry out the work of second stage, first brush isolation oil or stick the isolation oilpaper in the T-shaped groove of four joint faces of main concrete foundation unit, then the steel structure frame of 4 transition concrete foundation unit 2 is relied on respectively four faces of main concrete foundation unit 1 of moulding and fastening with connecting bolt 13, fixing arrangement of reinforcement 25 on steel structure frame again, template is pasted in the outside, 2 both sides, steel structure frame two ends and upper surface are welded with respectively locking otic placode 11 in transition concrete foundation unit, the upper ear plate 17 of locking

otic placode

11 and 18 of lower ear plates are exposed at outside steel structure frame, inverse-T-shaped mould is fixed on iron wire on the outer end joint face of steel structure frame of transition concrete foundation unit, the steel pipe of reserving steel strand is run through into wooden model by direction be connected with in type central part hole, confirm errorless without careless mistake after-pouring concrete, when being about to solidify typing, extracts concrete steel pipe out, remove wooden model after 2 moulding of transition concrete foundation unit, carry out the work of phase III, brush isolation oil or stick the isolation oilpaper in the detent 23 of the outer end joint face of transition concrete foundation unit 2, the steel structure frame of concrete foundation unit, end 3 is relied on respectively 2 of transition concrete foundation unit and fixing with connecting bolt 13, weld arrangement of reinforcement in the steel structure frame of concrete foundation unit, end 3, and stick template in its outside, the steel structure frame medial surface of concrete foundation unit, end 3 respectively the locking otic placode 11 of 2 sides, corresponding transition concrete foundation unit be welded with and connect otic placode 12, the steel pipe of reserving steel strand runs through into template and with the steel strand preformed hole of in type transition concrete foundation unit 2 by direction and is connected, confirm errorless without careless mistake after-pouring concrete, when being about to solidify typing, extracts concrete steel pipe out, stripping after the structural member moulding, to note several details in whole concreting process: the 1 pre-buried position according to the special connecting bolt end of tower machine bottom girder size Selection seat.2 A that reserve are to remaining on basic central area and vertical non-intersect with B to the steel strand inserting hole, and the inserting hole passage when being combined into integral body must keep clear and can not be crooked.3 for the second time concreting and for the third time before concreting first in the joint face upper berth of moulding layer of plastic film, separate smoothly when being convenient to dismantle the basis.after all reaching strength grade Deng all concrete components, just can carry out the prestressed steel strand, and the horizontal and vertical direction by connecting bolt with main concrete foundation unit 1, transition concrete foundation unit 2 and locking otic placode on being connected in concrete foundation unit, end be connected otic placode and tighten together, make this foundation for tower crane not only have steel structure frame, facilitate transportation, saved the great number freight charges, reduced cost, form dual link but also make between each base unit, ensured that horizontal direction can not have any loosening, make between the concrete foundation unit and bearing adverse circumstances (storm wind invasion and attack, brake rapidly descends, revolution brake rapidly, base unit and ground are uneven, displacement up and down can not appear in the time of the unfavorable factors such as the ground tackle of steel strand is loosening), avoided the gap occurring owing to adopting single steel strand to connect between foundation for tower crane, cause horizontal error to surpass 2mm and the generation of security incident occurs, just can declare that steel work dual link formula tower machine installs and can use to these job dones.Its unloading process is sequentially, first use special tool dismountings such as prestress wire, connecting bolts, dismantle successively concrete foundation unit, end, transition concrete foundation unit, main concrete foundation unit with crane gear again, and entrucking, be central part at last, so just can be transported to next building site and have installed and used.In the repeated disassembled and assembled transportation, because the corner angle of main concrete foundation unit 1, transition concrete foundation unit 2 and concrete foundation unit, end 3 adopt steel structure frame, avoided the generation of collision damaged phenomenon, increased application life.

the utility model is owing to taking said structure, have steel work bone framework and accessory kit and be fit to industrialization production, be fit to remote the supply, be conducive to extensively universal, assembly has excellent stability, reliability, safety, non-deformability, anti-collision, resistance to capsizing is strong, produce, dismounting, transport simple and convenient, long service life, better brought into play the saving reinforcing bar, the effect of the resources such as concrete, has novel structure, safe and reliable, make, install, maintenance, dismounting is simple, convenient transportation, cost of transportation is low, reuse labor and material saving, the advantages such as long service life.

Claims

1. steel structure frame formula foundation for tower crane, comprise main concrete foundation unit, transition concrete foundation unit, concrete foundation unit, end and prestress steel twist wire-connecting device, the housing that it is characterized in that main concrete foundation unit, transition concrete foundation unit and concrete foundation unit, end is respectively equipped with steel structure frame, and steel structure frame is mutually to be intersected by horizontal metal rib, vertical metal rib and perpendicular metal rib to be formed by fixedly connecting.

2. a kind of steel structure frame formula foundation for tower crane according to claim 1, it is characterized in that between main concrete foundation unit and transition concrete foundation unit, be respectively equipped with fastener between transition concrete foundation unit and concrete foundation unit, end, fastener comprises the locking otic placode, connect otic placode, connecting bolt, connect bearing pin, cottor pin and setscrew nut, both sides, two ends, transition concrete foundation unit are respectively equipped with the locking otic placode, main concrete foundation unit surrounding is respectively equipped with the connection otic placode, the locking otic placode of both sides, inner corresponding transition concrete foundation unit, concrete foundation unit, end is respectively equipped with the connection otic placode, described locking otic placode is respectively by upper ear plate with being connected otic placode, the U-shaped plate that the arc junction plate of lower ear plate and upper ear plate and lower ear plate one end is fixedly connected and forms, the upper ear plate of U-shaped plate and lower ear plate correspondence are provided with perforation, and the arc junction plate of U-shaped plate is embedded in concrete, described connecting bolt one end is thread segment, the other end is provided with contiguous block, contiguous block is provided with connecting through hole, connecting bolt one end passes through the connection bearing pin connecting through hole and the cottor pin that connect on otic placode and contiguous block and is fastenedly connected, the gap that the other end passes in the middle of the locking otic placode is inconsistent fixing through setscrew nut and locking otic placode.

3. a kind of steel structure frame formula foundation for tower crane according to claim 1, the upper surface that it is characterized in that main concrete foundation unit, transition concrete foundation unit and concrete foundation unit, end is respectively equipped with fastening otic placode, fastening otic placode is the U-shaped plate that the arc junction plate by upper ear plate, lower ear plate and upper ear plate and lower ear plate one end is fixedly connected and forms, the upper ear plate of fastening otic placode and lower ear plate correspondence are provided with perforation, and the arc junction plate of fastening otic placode is embedded in concrete.

4. a kind of steel structure frame formula foundation for tower crane according to claim 1, it is characterized in that being respectively equipped with detent or positioning boss on four joint faces of main concrete foundation unit, transition concrete foundation unit one end face and corresponding positioning boss or the detent of being provided with in main concrete foundation unit, the other end is provided with positioning boss or detent, the inner correspondence in concrete foundation unit, end is provided with detent or positioning boss, and detent or positioning boss are inverse-T-shaped.

5. a kind of steel structure frame formula foundation for tower crane according to claim 1 is characterized in that the steel structure frame of main concrete foundation unit, transition concrete foundation unit and concrete foundation unit, end adopts truss structure.