CN2851237Y - Integral lifting device for large-scale structured device - Google Patents

Abstract

The utility model relates to an integral lifting device for a large-sized structure, which mainly comprises a steel hinge line, a fixing beam, a moving beam, a guide rail, tool anchors, a work anchor and a top lifting hoisting jack, wherein the steel hinge line orderly passes through the work anchor, the lower tool anchor and the upper tool anchor from bottom to top; the work anchor is fixed on the bottom end of the steel hinge line; the lower took anchor is arranged on the fixing beam, and the upper tool anchor is arranged on the moving beam; the fixing beam is arranged on a supporting structure; the top lifting hoisting jack is arranged on the fixing beam; the upper part of the hoisting jack is provided with the moving beam; the fixing beam is connected with the moving beam by the guide rail. The implementation cost of the large-sized structure adopted the lifting device is one tenth of the cost of the traditional integral lifting method; the utility model adopts the top lifting hoisting jack which is usually used by construction enterprises, the lifting capability can reach the 500 ton stage, and the utility model is easy to accept by most of construction enterprises, and meanwhile, the device has the characteristics of high stability, high operation safety for workers, high lifting speed, etc.

Description

The large scale structure integral lifting apparatus

Technical field

The utility model relates to the lifting of large scale structure, specifically is that the single-piece of large scale structure promotes, and particularly the single-piece of roof system, bridge, main equipment promotes.

Background technology

Along with the progress and the expanding economy of society, the application of large scale structure is more and more, and span is increasing, and structure is more and more heavier, and hoisting depth is more and more higher, and therefore the field engineering of large scale structure is paid close attention to by academia and engineering circle deeply.

The installation method of large scale structure mainly contains seven kinds at present: the high altitude bulk method; The itemize piecemeal is installed method; The high-altitude sliding method; Traversing carriage is installed method; Whole hanging method; The integral jacking method; Whole lift method etc.The high altitude bulk method adopts full hall scaffold to support, and completely spreads as service platform with foot plank at the scaffold top.This method needs large-scale assembling support, and setting up and dismantling of support is consuming time more, therefore, is only applicable to the less Unit Installation of structure, for highly big or structure that span is big with regard to consuming time expend too big.Itemize piecemeal installation method is that the desire mounting structure is divided into strip or block unit, is lifted to the designed elevation of high-altitude by hoisting crane respectively, and assembly unit becomes integral body again.This method can be used for middle-size and small-size structure installs, but still has a certain amount of amount of high-altitude operation, and behind itemize and the piecemeal amount of deflection of each several part be difficult to unified, so installation at high altitude acquires a certain degree of difficulty.The high-altitude sliding method is that slippage was spliced into integral body again to design attitude on slide rail after the structure itemize was installed.This method need be set up completely high scaffold at building one end, needs to be provided with the bigger slide rail of rigidity simultaneously, so its application is restricted.Traversing carriage is installed method and is promptly set up movably bracing frame, structure is carried out the itemize piecemeal install, and installs after the part, and mobile bracing frame also carries out another part structure and installs.This method is limited by the place, and the stability of mobile bracing frame is than fixed support difference, and is not suitable for the structure that bearing has the discrepancy in elevation.Whole hanging method is meant structure after the total assembly in ground, utilizes dead man or hoisting crane hoisted in position.Be subjected to dead man or hoisting crane brachium, hoisting force quantitative limitation, this method can only be used for the little structure of setting height(from bottom).The integral jacking method is that structure is become whole at the installation on ground of design attitude, then with the top lift jack with its integral jacking to designed elevation.Owing to make integral assembling on ground, structure assembly unit quality is guaranteed.The weak point of this method is: the top is lifted jack and is placed in below the structure, and random offset takes place structure easily, so the overall height guide rail must be set to guarantee jacking campaign straight up.In addition, because that journey is held on jack top is limited, so once (be generally 15～20cm), just need mobile jack, constructing operation is trouble, and the workman stands in and desire to rise on the mounting structure, and the safety hazard existence is arranged in every jacking thereupon.

Whole lift method is to generally acknowledge one of state-of-the-art installation method at present, this method utilizes composition bonts such as self-locking punching jack, fixed beam, work anchor, strand to finish: at first fixed beam is arranged on the supporting construction, suspension centre and erection work anchor are set being raised on the structure then, strand is passed self-locking punching jack to be fixed on the suspension centre that is raised structure, because very heavy heading tape auto-lock function, so when jack fuel feeding and oil return, strand can only rise and can not descend.This weak point of whole lift method is that self-locking feedthrough jack costs an arm and a leg, and has only a small amount of professional lifting company just can be equipped with, so this item project is generally contracted by professional lifting company, price is very high, allows the owner be difficult to accept, and also is difficult to large-scale popularization.

The utility model content

The purpose of this utility model provides a kind of safe, efficient and enforcement convenience, cheap large scale structure bont exactly for overcoming the deficiencies in the prior art.

The purpose of this utility model realizes by following apparatus:

A kind of large scale structure integral lifting apparatus comprises fixed beam, portable beam, top act jack, guide rail, goes up moveable anchor, following moveable anchor, strand and work anchor.Wherein strand passes work anchor, following moveable anchor and last moveable anchor from down to up successively; Work anchor is fixed on the lower end of strand, following moveable anchor is installed on the fixed beam, last moveable anchor is installed on the portable beam, fixed beam is connected by the top act jack that is installed between the two ends with portable beam, fixed beam is installed on the supporting construction, the position is higher than the height in place that is raised structure, and the guide rail lower end is connected on the fixed beam, is upward through portable beam.Because the position-limiting action of guide rail, portable beam can only move up and down and can not laterally offset along guide rail.

For further realizing the utility model, be positioned at the strand both sides on the described fixed beam two top act jacks are set.

This large scale structure integral lifting method mainly comprises the steps:

(1) fixed beam is installed on the supporting construction, then guide rail is installed on the fixed beam, portable beam, upper and lower moveable anchor and top act jack are installed again;

(2) strand is passed the suspension centre that is raised structure and fixed, extend upward the following moveable anchor that passes successively on the fixed beam and the last moveable anchor on the portable beam then, strand is strained with the work anchoring;

(3) the jack oil-feed is the portable beam jack-up that makes progress, and moveable anchor intermediate plate locking strand on this moment unclamps with moveable anchor at present, and strand rises along with the rising of portable beam drives large scale structure.Behind stroke of jack rising, the oil cylinder oil return, the moveable anchor intermediate plate unclamps on this moment, and with the strand of moveable anchor locking at present, portable beam falls, and finishes the cycle that once promotes;

(4) repeating step (3) is thus lifted to the desired location until large scale structure.

Fixed beam should be installed on the stable supporting construction in the utility model, and the setting height(from bottom) of fixed beam should be higher than the height of large scale structure after in place.The jack that the utility model is used is lifted jack for the top.

Principle of work of the present utility model has been utilized the characteristic of moveable anchor.Moveable anchor is ripe approved product, is widely used in prestressed structure, mainly is made up of three parts: positioning plate, intermediate plate and anchor slab, have wedged hole in the anchor slab, and its angle equates with intermediate plate.In the utility model, the strand that promotes large scale structure can pass upper and lower moveable anchor, under the combined action in positioning plate, intermediate plate and anchor slab hole, strand can only be unidirectional therein moves one and moves up and can not move down: when the relative moveable anchor upward movement of strand, intermediate plate rises thereupon and blocks up to limited plate, at this moment intermediate plate unclamps, and allows it to rise swimmingly; When the relative moveable anchor of strand moved downward, intermediate plate had been with to embed the anchor slab hole downwards, and is clamped locked strand by anchor hole thereupon, and its motion is stopped.When moveable anchor is to the unclamping of strand under the utility model utilization, promote strand by jack, moveable anchor falls jack after rise to the clamping of strand under utilizing, and so repeated application realizes the lifting of large scale structure.

Advantage of the present utility model:

In large scale structure method for improving commonly used at present, traditional whole lift method is similar to the utility model with the integral jacking method.The utility model is arranged at jack and is raised superstructure, and this is identical with the traditional integral lift method; The traditional integral lift method adopts the feedthrough jack of band auto-lock function, and the utility model device adopts the top to lift jack.

1, the utility model and traditional integral lift method are relatively

Compare with the traditional integral lift method, that advantage of the present utility model is is inexpensive, be easy to promote, and hoisting capacity is strong, suspension centre is few etc.:

(1) expense aspect, lifting power of the present utility model adopts common top to lift jack, at each suspension centre two small-sized tops are set and lift jack and the large-scale self-locking feedthrough jack of two moveable anchors to replace the traditional integral lift method to be adopted, implementation cost only is 1/10th of a traditional integral lift method.

(2) hoisting capacity aspect, the self-locking feedthrough jack that present domestic hoisting capacity is the strongest is the 200t level, and the top ability of lifting of top act jack has reached the 500t level.Low meaning of hoisting capacity promotes increase suspension centre, increases fixed beam quantity, the raising that will bring expense thus, and suspension centre increases problems such as also can causing synchronous lifting difficulty simultaneously.

(3) ease of use aspect, the utility model adopt the top to lift jack as promoting power, and volume is little, in light weight, makes things convenient for the high-level adjusting work of workman.Because it is the common equipment of construction enterprises that jack is lifted on the top, so being most of construction enterprises easily, this method accepts, be easy to promote.

2, the utility model and integral jacking method are relatively

Compare with the integral jacking method, advantage of the present utility model is that good stability, degree of safety height, speed are fast etc.

(1) stable aspect: the guide rail in the utility model device is very short (generally to be about 100cm～120cm), so jack and portable beam are difficult for skew when work.Simultaneously because the center of gravity of the large scale structure that is raised is lower than bont, so the stability of this device is guaranteed easily in the lifting process.

(2) degree of safety aspect: during the work of the utility model device, the workman operates on the fixed beam on supporting construction top always, is higher than to be raised structure, and safety guarantees easily.

(3) hoisting speed aspect: the utility model when work, need not mobile jack, also supporting apparatus such as cushion block, bracket need not be set, hoisting speed is fast than the integral jacking method.

Description of drawings

Fig. 1 is a large scale structure bont structure front elevation, and shown in the figure: 1, jack 7, strand are lifted in fixed beam 2, portable beam 3, guide rail 4, last moveable anchor 5, following moveable anchor 6, top

Fig. 2 large scale structure bont be raised the structure connection diagram, shown in the figure: 7, strand 8, work anchor 9, be raised structure

Fig. 3 is a moveable anchor structural representation among Fig. 1, shown in the figure: 10, positioning plate 11, intermediate plate 12, anchor slab 13, handle 14, pipe link

Implement embodiment

Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in further detail, but embodiment of the present utility model is not limited thereto.

Embodiment 1

The object that promotes is large-scale roof structure, and weight is 100t.

As shown in Figure 1, 2, used bont comprises fixed beam 1, portable beam 2, top act jack 6, guide rail 3, goes up moveable anchor 4, following moveable anchor 5, strand 7 and work anchor 8 in the present embodiment.Wherein strand 7 is fixed on the roof structure 9 by work anchor 8, and upwards passes down moveable anchor 5 and last moveable anchor 4 successively; Following moveable anchor 5 is installed in the fixed beam middle part, and last moveable anchor 4 is installed in the portable beam middle part, two tops is installed between fixed beam and portable beam two the inners lifts jack 6; Fixed beam 1 is installed on the supporting construction, and guide rail 3 is positioned at strand 7 both sides, and the lower end is fixed on the fixed beam 1, is upward through portable beam 2.

Before the lifting, being raised large-scale roof structure 9 has become integral body at installation on ground.During lifting, earlier fixed beam 1 is installed on the supporting construction, then guide rail 3 is installed on the fixed beam 1, portable beam 2 is installed again, is gone up moveable anchor 4, moveable anchor 5 and top act jack 6 down; Strand 7 is passed the suspension centre that is raised structure and uses work anchor 8 fixing, extend upward then and pass down moveable anchor 5 and last moveable anchor 4 successively, with strand 7 tensions; Lift jack 6 oil-feeds with portable beam 2 jack-up upwards by the top, at this moment, as shown in Figure 3, because strand 7 is gone up moveable anchor 4 relatively and is moved downward, descend simultaneously moveable anchor 5 upward movements relatively, moveable anchor inner clamp piece 11 cooperates with anchor slab 12 strand 7 lockings in the event, meanwhile descends moveable anchor 5 inner clamp pieces 11 to cooperate with positioning plate 10 and unclamps strand 7.Along with the rising of portable beam 2, strand 7 drives large-scale roof structure 9 and rises.After stroke of jack 6 risings is lifted on the top, the oil cylinder oil return, portable beam 2 descends, and this moment, strand 7 was gone up moveable anchor 4 upward movements relatively, descended moveable anchor 5 to move downward relatively, therefore going up moveable anchor 4 inner clamp pieces unclamps, and following moveable anchor 5 inner clamp pieces locking strand 7, everything goes well with your work in order to guarantee the moveable anchor intermediate plate, and the workman can catch and carry or press down positioning plate 10 on the handle 13 and help it to unclamp or clamp strand, because pipe link 14 is arranged, positioning plate is unlikely to pull.After portable beam 2 drops to the end, finish the cycle that once promotes.It is 15～20cm that stroke of jack jacking is lifted on the top.Implement previous step repeatedly, large scale structure can be thus lifted to the desired location.

Embodiment 2

The object that promotes is large-scale roof structure, and weight is 200t, and used bont and method are with embodiment 1.

Embodiment 1 and embodiment 2 promote the expense situation:

Promoting roof structure weight is on 100t and two ranks of 200t, and embodiment 1 and embodiment 2 are with respect to the implementation cost of the traditional integral lift method that adopts large-scale self-locking feedthrough jack as shown in Table 1.More as can be known, adopt integral lifting apparatus of the present utility model, implementation cost is very low.

Whole lift method of table one twin beams and traditional integral lift method direct expenses are relatively

Lifting weight	The utility model-twin beams is whole to be promoted			Traditional integral body promotes		Price is than (B/A)
							Equipment and quantity	Price	Total price (A)	Equipment and quantity	Total price (B)
	100t embodiment 1	2 50t of jack are lifted on the top	1200	7100	10 work anchors of self-locking feedthrough jack 100t							83000	11.7
Moveable anchor and work anchor						1900
		Portable beam and guide rail	4000
200t embodiment 2						2 100t of jack are lifted on the top	18800	29600	18 work anchors of self-locking feedthrough jack 200t	159000	5.4
	Moveable anchor and work anchor	2800
			Portable beam and guide rail	8000

The unit of value is in the table: RMB

Claims (2)

1, a kind of large scale structure integral lifting apparatus comprises fixed beam, strand and work anchor, it is characterized in that described integral lifting apparatus also comprises upper and lower moveable anchor, guide rail and portable beam; Described strand passes work anchor, following moveable anchor and last moveable anchor from down to up successively; Described work anchor is fixed on the lower end of strand, following work anchor is installed on the fixed beam, last work anchor is installed on the portable beam, described fixed beam is installed on the supporting construction, the top is set on the fixed beam lifts jack, portable beam is installed on jack top, and described guide rail lower end is fixed on the fixed beam, is upward through portable beam.

2,, it is characterized in that being positioned on the described fixed beam strand both sides two top act jacks are set according to the described a kind of large scale structure integral lifting apparatus of claim 1.

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