CN203462764U - Large cantilever promotion counter-force frame - Google Patents

Large cantilever promotion counter-force frame Download PDF

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Publication number
CN203462764U
CN203462764U CN201320509401.0U CN201320509401U CN203462764U CN 203462764 U CN203462764 U CN 203462764U CN 201320509401 U CN201320509401 U CN 201320509401U CN 203462764 U CN203462764 U CN 203462764U
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China
Prior art keywords
encorbelmenting
rod
cantilever
building
web
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CN201320509401.0U
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Chinese (zh)
Inventor
叶翔
李建洪
邢遵胜
张伟
胡广龙
林上幸
余国华
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浙江精工钢结构集团有限公司
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Priority to CN201320509401.0U priority Critical patent/CN203462764U/en
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Publication of CN203462764U publication Critical patent/CN203462764U/en

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Abstract

The utility model mainly discloses a high-position large cantilever promotion counter-force frame. The high-position large cantilever promotion counter-force frame comprises a corridor structure, a front-end cantilever bracket and a rear-end back pull rod which are prearranged on a tower at a high position, wherein the corridor structure comprises a truss structure and a corridor supporting seat; the corridor supporting seat is connected with the lower part of the truss structure; a promotion point is arranged under the condition that the front end of the corridor structure is substantially overhung outwards depending on the front-end cantilever bracket below; the tail end is welded with the rear-end back pull rod. The high-position large cantilever promotion counter-force frame has the characteristics of being reasonable in structural system, large in resistance moment, easy to construct and beneficial to protection of the main structure of the tower and the like, provides critical technical supporting measures for the overall hydraulic lifting construction of a large-span heavy steel corridor structure, and has great significance in enrichment of a building steel structure construction technology, and promotion of the development and popularization of a large-span corridor building.

Description

A kind of lifting reaction frame of encorbelmenting greatly

Technical field

The utility model relates to construction steel structure technical field, particularly about a kind of lifting reaction frame of encorbelmenting greatly.

Background technology

Since this century, China accelerates Push Forward Urbanization Development, and high-rise, super highrise building emerges in large numbers like the mushrooms after rain, and architectural image is also with rapid changepl. never-ending changes and improvements, wherein with the double tower building of aerial vestibule or the taste characteristic that many tower buildings meet city landmark, thereby be deeply subject to urban construction person's favor.For such building, several classes such as the connected mode of vestibule and high building is substantially rigidly connected, is articulated and connected, is slidably connected, but to this type of structural system, there is research still immature at present, the earthquake resistant design code of China also lacks sufficient technology to the design with vestibule highrise building and guides, restricted by design difficulty, the common gallery structure scale of construction is less, and span is generally in 50m, deadweight is no more than 500t, and its construction method generally adopts Integral Hydraulic Lifting Technique of Over.

After Wenchuan earthquake, the domestic architectural vibration-insulation technology of wideling popularize, with vestibule highrise building, welcome new development opportunity, wherein changing is the most significantly the utilization of damping isolator, its seismic energy that can significantly dissipate, reduce all adverse effect of such building under earthquake acceleration excitation, thereby for to lay a good foundation with the gallery structure of the larger span of vestibule Development of High-rise Buildings, the larger scale of construction.Span 106m, the 3700t that weighs, for current domestic successful come into operation greatly across steel corridor.

The utilization of damping isolator, make to have broken through with vestibule highrise building the technical bottleneck of structure design, but from construction and installation angle, vestibule span is over hundred meters, dead load reaches thousands of tons of, conventional Integral Hydraulic Lifting Technique of Over can not copy among the large construction across heavy-duty steel vestibule simply, and its reason is: 1, gallery structure span, deadweight increase cause lifting force to increase, and conventional lifting reaction frame cannot meet the load demand of heavy gallery structure; 2, along with design theory and method moves to maturity, such building no longer meets very steady architectural effect, abundant and the variation of pursuing elevation of building becomes trend gradually, but from construction angle, the variation of elevation of building is outwards encorbelmented the hoist point that causes gallery structure, and distance is continuous to be increased, promote initiatively moment and also increase thereupon, thereby proposed higher load requirement to promoting reaction frame; 3, owing to promoting reaction frame, rely on high building agent structure to carry out work, under huge lifting force effect, promote reaction frame structural system, whether structure way is reasonable, is directly connected to the secure topical of turret structure.

Based on above-mentioned situation, solve the construction technology difficult problem of encorbelmenting greatly and promoting across a heavy-duty steel vestibule high position greatly, to promoting the development of large bridging corridor building and popularizing significant, and for greatly providing a set of economical rationality, safe and reliable lifting reaction frame across the heavy-duty steel vestibule lifting construction of encorbelmenting greatly, ensure lifting construction safety, the safety that ensures work progress turret structure, is the crucial match technology means of such building operations, and therefore this case produces.

Utility model content

The purpose of this utility model is to provide a kind of lifting reaction frame of encorbelmenting greatly, for greatly providing a set of economical rationality, safe and reliable stressed supporting across the construction of heavy-duty steel vestibule Integral type hydraulic lifting, ensures lifting construction safety, ensures the safety of work progress turret structure.

In order to achieve the above object, technical solution of the present utility model is:

The high position lifting reaction frame of encorbelmenting greatly, comprises the gallery structure, front end cantilever supporting frame, the rear end back rod that are laid in high-order prepackage on high building; Gallery structure comprises the vestibule bearing of trussed construction and truss frame for connecting structure below, and gallery structure front end relies on the front end cantilever supporting frame of below outwards significantly to encorbelment hoist point is set, and tail end welds mutually with rear end back rod.

Described front end cantilever supporting frame is steel truss structure, and the below of each hoist point is corresponding arranges a slice plane steel truss of encorbelmenting, and adjacent two plane steel truss of encorbelmenting are contacted outward and formed a set of complete cantilever supporting frame by plane.

The described plane steel truss of encorbelmenting comprises chord member, perpendicular web member, diagonal web member; Chord member horizontal direction is laid multilayer, and the perpendicular web member correspondence straight web member of plane steel truss of encorbelmenting arranges, intersect vertically with chord member, diagonal web member pressure-bearing is main, oblique being bearing between chord member and perpendicular web member.

The described plane steel truss of encorbelmenting adopts H shaped steel assembly welding to form, a plurality of floors that vertically jump, and each layer of end rod member intersects at each floor plate absolute altitude place of high building agent structure, is welded to connect with the pre-embedded steel slab in high building agent structure.

Described rear end back rod and the front end plane steel truss of encorbelmenting is corresponding, and bar body is welded H section steel, and bracket is chosen in bottom outside both sides, establishes punching and draw anchor in bracket, and punching anchor pole is passed down through concrete building plate, is anchored on the default anchoring bracket of agent structure.

Adopt after such scheme, the utlity model has many beneficial effects:

1, structural system is reasonable, and resisting moment is large.Vestibule both sides prepackage part is unsettled mechanism under separate state, the introducing of front end cantilever supporting frame and back rod, for pre-assembling structure provides indeterminate constraint, simultaneously, the collaborative work effect of cantilever supporting frame and back rod when the rigidity of the gallery structure of prepackage itself has guaranteed again to promote conversely, reasonably stress system makes a whole set of reaction frame possess the larger opposing arm of force, thereby met, carries out greatly the demand of the high-order lifting construction of encorbelmenting greatly across heavy-duty steel gallery structure.

2, be conducive to protect high building agent structure.In lifting process, the cantilever supporting frame of stressed maximum adopts steel truss system, a plurality of floors vertically jump, each layer of end rod member intersects at floor absolute altitude place, by the horizontal component of support body pass to floor, vertical stress component passes to vertical concrete member, give full play to that main body concrete floor in-plane stiffness is large, the strong characteristic of concrete post (wall) bearing capacity, avoid main body concrete structure to sustain damage under huge lifting moment loading.

3, reduce expenses.Front end cantilever supporting frame and back rod are pre-installed high-order temporary supporting and the operation platform of encorbelmenting, the input of having saved extra working measure are provided for vestibule both sides.

4, peace is torn open conveniently, environmental protection.Cantilever supporting frame and back rod form member and are normal welding shaped steel and steel pipe, and connected node is normal welding node, and prefabrication, on-the-spot simple installation, efficiency are high, and construction error is had to certain compliance, and construction quality is also easily guaranteed.After having constructed, all members are recyclable recycling all, meets the requirement of green construction.

Accompanying drawing explanation

Fig. 1 is unitary construction and working state schematic representation in the utility model preferred embodiment;

Fig. 2 is front end cantilever supporting frame unitary construction schematic three dimensional views in the utility model preferred embodiment;

Fig. 3 is the monolithic plane cantilever frame organigram of the utility model preferred embodiment;

Fig. 4 is the contact rod schematic representation between two plate plane cantilever frames of the utility model preferred embodiment;

Fig. 5 is back rod organigram in the utility model preferred embodiment;

Fig. 6 is A-A schematic diagram in Fig. 5;

Fig. 7 is B-B schematic diagram in Fig. 5.

The specific embodiment

By reference to the accompanying drawings, to the utility model, preferred embodiment is described in further details.

As shown in Figure 1, the utility model preferred embodiment comprises gallery structure, front end cantilever supporting frame 1, the rear end back rod 2 of high-order prepackage.

The gallery structure of high-order prepackage is positioned at high building 5 tops, comprises the huge trussed construction 3 of part and vestibule bearing 4, and owing to receiving in high building 5 facades, gallery structure relies on front end cantilever supporting frame 1 outwards significantly to encorbelment to arrange lifting means 6.Trussed construction 3 tail ends and the rear end back rod 2 of gallery structure are welded to connect, and three large parts collaborative works promote greatly across heavy-duty steel gallery structure 7.

As shown in Figure 2 and Figure 3, front end cantilever supporting frame 1 is comprised of two plane steel truss 8 of encorbelmenting, tie-rod 9, cross supports 10.

The corresponding hoist point of the plane steel truss 8 of encorbelmenting arranges, the monolithic plane steel truss 8 of encorbelmenting comprises chord member 11, perpendicular web member 12, diagonal web member 13.Because support body is stressed larger, thus chord member 11 to arrange that 3 layers are advisable above, support body end is stressed too concentrated very little for the number of plies, brings difficulty to the design of built-in fitting 15, specifically should be as the criterion with force analysis.The straight web member of the corresponding pre-assembling structure of perpendicular web member 12 is arranged.The layout of diagonal web member 13 be take pressure-bearing as main, and support body end and built-in fitting 15 are welded to connect.

The interior all rod members of the plane steel truss 8 of encorbelmenting are made by welded H section steel, and rod member specification should be designed and be determined by force analysis, and rod member two direction slenderness ratios should be approaching as far as possible.For guaranteeing the inner reliable power transmission of support body, all rod member openings should be unanimously outside, and web should be in same plane; In support body, all connected nodes are welding connection node, and intermediate node place chord member connects, and endpoint node diagonal web member connects, and in node, the corresponding non-penetrating rod member edge of a wing should arrange stiffener 14.

In conjunction with Fig. 4, for guaranteeing to encorbelment the flat lateral stability of plane steel truss 8, two adjacent truss should connect into stressed integral body by tie-rod 9, cross support 10.Tie-rod 8 is arranged in panel point place substantially, also can suitably encrypt, and rod member is made by welded H section steel, and depth of section equates with chord member 11, and end web is overhanging, is welded to connect with chord member 11.Cross support 10 is arranged in horizontal plane that adjacent chord member, perpendicular web member, diagonal web member surround, risers, tiltedly in facade, by straight seam welded steel pipe or seamless steel pipe, is made, and intersecting mouth is cut in end, is welded to connect with support body.

As shown in Figure 5, rear end back rod 2 is comprised of pull bar 16, punching anchor pole 17, anchoring bracket 18.

Pull bar 16 adopts welded H section steel to make, top adopts full penetration weld 24 to be connected with the gallery structure 3 of prepackage, bottom welding anchoring bracket 19, and bracket 19 cross sections are " II " shape, every side bracket is all offered through hole 23, and opening diameter is than the large 10mm of the diameter of punching anchor pole 17.

Anchoring bracket 18 cross sections that are preset in agent structure are " II " shape, the solid bracket 18 of every side anchor is all offered through hole 23, opening diameter is than the large 10mm of the diameter of punching anchor pole 17, pull-type pre-embedded steel slab 22 is welded to connect in anchoring bracket 18 ends and high building agent structure.

Punching anchor pole 17 adopts round steel to make, and specification should be designed and be determined by computational analysis.Round steel both-end preprocessing screw thread, 12 anchor pole minute left and right sides are passed after bracket 19, floor 20, anchoring bracket 18, are screwed into double nut 21 and realize anchoring.

The utility model adopts following installation steps:

High building 5 main structure constructions during to built-in fitting 15, built-in fitting 22 corresponding position, are carried out installation of embedded parts in time, and the hole of passing through of on floor 20 reserved punching anchor pole 17 should be noted in back rod bottom in rear end.

High building 5 main structure constructions complete, and after built-in fitting 15, built-in fitting 22 place's concrete strengths reach 75%, carry out front end cantilever supporting frame 1 and install with rear end back rod 2, and front end cantilever supporting frame 1 is successively installed from bottom to up.

Carry out the installation of vestibule bearing 4, in work progress, bearing should keep stationary state simultaneously, must not produce slip, rotate.

Front end cantilever supporting frame 1 and rear end back rod 2 according to tension weld credit rating one-level, pressurized Weld quality level be not less than secondary, flat out-of-plane bending is not more than 30mm and carries out construction quality examination, after acceptance(check), the huge trussed construction 3 in assembled vestibule both sides.

The gallery structure 3 of high-order prepackage carries out construction quality examination according to < < code for acceptance of construction quality of steel structures > > (GB50205-2001), after acceptance(check), weld a whole set of reaction frame installation with rear end back rod 2.

Above-described embodiment is only for the inventive concept of the present utility model of explaining, but not restriction to the utility model rights protection, allly utilizes this design to carry out the change of unsubstantiality to the utility model, all should fall into protection domain of the present utility model.

Claims (5)

1. the high position lifting reaction frame of encorbelmenting greatly, is characterized in that: comprise the gallery structure, front end cantilever supporting frame, the rear end back rod that are laid in high-order prepackage on high building; Gallery structure comprises the vestibule bearing of trussed construction and truss frame for connecting structure below, and gallery structure front end relies on the front end cantilever supporting frame of below outwards significantly to encorbelment hoist point is set, and tail end welds mutually with rear end back rod.
2. an a kind of high position as claimed in claim 1 lifting reaction frame of encorbelmenting greatly, it is characterized in that: described front end cantilever supporting frame is steel truss structure, the below of each hoist point is corresponding arranges a slice plane steel truss of encorbelmenting, and adjacent two plane steel truss of encorbelmenting are contacted outward and formed a set of complete cantilever supporting frame by plane.
3. an a kind of high position as claimed in claim 2 lifting reaction frame of encorbelmenting greatly, is characterized in that: the described plane steel truss of encorbelmenting comprises chord member, perpendicular web member, diagonal web member; Chord member horizontal direction is laid multilayer, and the perpendicular web member correspondence straight web member of plane steel truss of encorbelmenting arranges, intersect vertically with chord member, diagonal web member pressure-bearing is main, oblique being bearing between chord member and perpendicular web member.
4. an a kind of high position as claimed in claim 1 lifting reaction frame of encorbelmenting greatly, it is characterized in that: the described plane steel truss of encorbelmenting adopts H shaped steel assembly welding to form, a plurality of floors vertically jump, each layer of end rod member intersects at each floor plate absolute altitude place of high building agent structure, is welded to connect with the pre-embedded steel slab in high building agent structure.
5. an a kind of high position as claimed in claim 1 lifting reaction frame of encorbelmenting greatly, it is characterized in that: described rear end back rod and the front end plane steel truss of encorbelmenting is corresponding, bar body is welded H section steel, bracket is chosen in bottom outside both sides, in bracket, establish punching and draw anchor, punching anchor pole is passed down through concrete building plate, is anchored on the default anchoring bracket of agent structure.
CN201320509401.0U 2013-08-20 2013-08-20 Large cantilever promotion counter-force frame CN203462764U (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103422679A (en) * 2013-08-20 2013-12-04 浙江精工钢结构有限公司 Large cantilever promotion counter-force frame
CN104652842A (en) * 2015-02-15 2015-05-27 上海天演建筑物移位工程股份有限公司 Building integral deviation correcting and raising lifting method and equipment thereof
CN104787681A (en) * 2015-04-21 2015-07-22 青岛港国际股份有限公司 Hoister for quay crane
CN105178583A (en) * 2015-08-17 2015-12-23 中建三局第二建设工程有限责任公司 Steel truss overhung operation platform and construction method thereof
CN105257005A (en) * 2015-11-05 2016-01-20 中国建筑第八工程局有限公司 Method for segmenting steel-structured transfer truss and segmented steel-structured transfer truss
CN106759845A (en) * 2016-12-29 2017-05-31 上海市机械施工集团有限公司 A kind of construction method of Steel corridor
CN108343251A (en) * 2018-05-08 2018-07-31 中冶建工集团有限公司 A kind of continuance lifting method without bearing large space Steel Truss Beam
CN109026033A (en) * 2018-07-23 2018-12-18 石家庄铁道大学 A kind of counterforce device in shield ancillary equipment

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103422679A (en) * 2013-08-20 2013-12-04 浙江精工钢结构有限公司 Large cantilever promotion counter-force frame
CN104652842A (en) * 2015-02-15 2015-05-27 上海天演建筑物移位工程股份有限公司 Building integral deviation correcting and raising lifting method and equipment thereof
CN104787681A (en) * 2015-04-21 2015-07-22 青岛港国际股份有限公司 Hoister for quay crane
CN105178583A (en) * 2015-08-17 2015-12-23 中建三局第二建设工程有限责任公司 Steel truss overhung operation platform and construction method thereof
CN105257005A (en) * 2015-11-05 2016-01-20 中国建筑第八工程局有限公司 Method for segmenting steel-structured transfer truss and segmented steel-structured transfer truss
CN106759845A (en) * 2016-12-29 2017-05-31 上海市机械施工集团有限公司 A kind of construction method of Steel corridor
CN106759845B (en) * 2016-12-29 2019-03-08 上海市机械施工集团有限公司 A kind of construction method of Steel corridor
CN108343251A (en) * 2018-05-08 2018-07-31 中冶建工集团有限公司 A kind of continuance lifting method without bearing large space Steel Truss Beam
CN109026033A (en) * 2018-07-23 2018-12-18 石家庄铁道大学 A kind of counterforce device in shield ancillary equipment

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Granted publication date: 20140305

Termination date: 20180820