CN107816209B - The large-scale Roof Truss construction technology of installation is lifted across outer two sides - Google Patents

The large-scale Roof Truss construction technology of installation is lifted across outer two sides Download PDF

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Publication number
CN107816209B
CN107816209B CN201711097510.5A CN201711097510A CN107816209B CN 107816209 B CN107816209 B CN 107816209B CN 201711097510 A CN201711097510 A CN 201711097510A CN 107816209 B CN107816209 B CN 107816209B
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China
Prior art keywords
support frame
main couple
interim
column
twin columns
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CN201711097510.5A
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CN107816209A (en
Inventor
袁国平
吴方亮
李昌林
杨叶锋
赵冠江
蒋永扬
苏更生
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ZHEJIANG ZHONGNAN CONSTRUCTION GROUP STEEL STRUCTURE CO Ltd
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ZHEJIANG ZHONGNAN CONSTRUCTION GROUP STEEL STRUCTURE CO Ltd
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Publication of CN107816209A publication Critical patent/CN107816209A/en
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/14Conveying or assembling building elements
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/14Conveying or assembling building elements
    • E04G21/16Tools or apparatus
    • E04G21/18Adjusting tools; Templates
    • E04G21/1841Means for positioning building parts or elements
    • E04G21/185Means for positioning building parts or elements for anchoring elements or elements to be incorporated in the structure

Abstract

The invention discloses the large-scale Roof Truss construction technology of installation is lifted across outer two sides, include the following steps: a, preparation of construction;B, main couple lifting installation preparation;C, main couple ground spelling;D, main couple is across circulation lifting is installed step by step outside;E, jack truss is installed according to main couple installation site.In the construction process, lifting equipment standing is lifted the present invention across outer close Steel Space Truss both ends, is considerably reduced the lifting rated capacity requirement of lifting equipment, is improved the service efficiency of lifting equipment;Do not need to avoid Steel Space Truss assembled in situ using covered court and build there is the conflict for intersecting and implementing with other professional workers of lower part;Without setting up scaffold, bearing supporting frame;Spatial steel structure assembly construction that is curved for support and irregularly arranging is particularly suitable;Project cost is advantageously reduced simultaneously.

Description

The large-scale Roof Truss construction technology of installation is lifted across outer two sides
Technical field
The invention belongs to long span building technical field of structures, and in particular to lift installation large-scale steel truss room across outer two sides Lid construction technology.
Background technique
In order to meet people's life and industrial needs, large span space steel truss structure is using more and more, together When in order to save the area, long span building structure also more and more forms using underground structure.
With the appearance of construction steel structure novel fabricated building technology and large scale hoisting machinery equipment, and by greatly across The assembly implemen-tation summary of degree Steel Space Truss forms the construction technology of a variety of maturations, and Zhu Ruyou accumulation slippage is built, set up completely Hall support frame carries out high altitude bulk construction, segmental hoisting is built, promotes the assembly technologies such as construction etc..Above-mentioned assembly construction is respectively equal There are certain advantages, but there is also certain deficiency, and accumulation slippage construction needs to be arranged a plurality of sliding beam and sliding beam should be by Parallel lines distribution, the Steel Space Truss that cannot form parallel lines distribution for the support of Steel Space Truss are just difficult to using tired Meter sliding building technology;Setting up full hall support frame progress high altitude bulk construction technology, there are ancillary measure material and operating expenses The defects of high, long construction period, while also influence relevant speciality and work post intersects implementation;Segmental hoisting building technology needs Set up bearing supporting frame in indoor part, it is sometimes desirable to need to lay Mobile hoisting equipment indoors, this is for there are basements Or indoor concrete base plate strength is difficult to meet the condition that Mobile hoisting equipment uses and just constrains using for the technique;It is promoted Building technology also needs to occupy its Steel Space Truss lower vertical view field space to be installed, is equipped with floor for lower part Structure or the Steel Space Truss for having Spectator Seating in turn result in promotion and build work because its underpart ground can not provide assembling place Skill is unable to satisfy construction.
Summary of the invention
Above-mentioned technical problem present in present invention aims to solve the prior art provides and lifts installation greatly across outer two sides Steel truss roof construction technique, lifting equipment standing are lifted across outer close Steel Space Truss both ends, are greatly lowered The lifting rated capacity requirement of lifting equipment, improves the service efficiency of lifting equipment;It does not need to avoid using covered court Steel Space Truss assembled in situ builds the conflict for existing with lower part other professional workers and intersecting implementation;Without setting up foot hand Frame, bearing supporting frame;Spatial steel structure assembly construction that is curved for support and irregularly arranging is particularly suitable;It is advantageous simultaneously In reduction project cost.
In order to solve the above-mentioned technical problem, the present invention adopts the following technical scheme:
The large-scale Roof Truss construction technology of installation is lifted across outer two sides, it is characterised in that is included the following steps:
A, preparation of construction
1) determine construction horizontal layout: construction horizontal layout is clear across the walking of outer hoisting machinery, hoisting machinery each time lifting Steel truss ground spelling region is specified in erect-position position, wherein erect-position position is walked and lifted by crane across outer hoisting machinery is located at building Across outer two sides, steel truss ground spelling region is located at building transverse ends or building transverse direction one end for longitudinal direction;
2) it determines that steel truss installs order, and determines the sequencing of truss ground spelling according to installation order;
3) the hoisting machinery model specification that hoisting uses is determined, energy needed for meeting the lifting of whole steel structure hoistings Power;
B, main couple lifting installation preparation
1) to the interim cable wire tie-rod of drawing at the arch springing of main couple;
2) interim single-column support frame is set up at the top of all principal posts in left side: first selecting the single-column support frame of design height Column, then single-column support frame bottom plate is welded in the bottom of single-column support frame column, branch is welded at the top of single-column support frame column Support top device, then single-column support frame bottom plate is fixed on to the top of principal post by support frame anchor bolt, then in single-column Lateral securing device is installed on support frame bottom plate;
3) interim twin columns support frame is set up at the top of all principal posts on right side: first selecting the first twin columns branch of design height There is height in support column and the second twin columns support frame column, the first twin columns support frame column and the second twin columns support frame column Difference, then twin columns support frame bottom is welded between the bottom of the first twin columns support frame column and the bottom of the second twin columns support frame column Beam is respectively welded at the top of support frame and fills in the bottom of the first twin columns support frame column and the bottom of the second twin columns support frame column It sets, then welds twin columns support frame bottom plate in the bottom of twin columns support frame bottom beam, then twin columns support frame bottom plate is passed through into support frame Anchor bolt is fixed on the top of principal post, then installs lateral securing device on twin columns support frame bottom plate;
4) main couple positioning plate, the welding position of main couple positioning plate and branch are welded in the outer surface of the lower chord tube of main couple The setting position of support top device corresponds to each other;
C, main couple ground spelling;
D, main couple is across circulation lifting is installed step by step outside
1) the first Pin main couple is put by lifting to be carried to across outer hoisting machinery close to the outside ground of outside axis Locate interim stabilization, then the first time for being located in longitudinal travel region across outer hoisting machinery is designed into erect-position position, is built by being located at It builds the longitudinal hoisting machinery across outer two sides of object and lifts and the first Pin main couple is transported to first from outside ground place closes on At the top of principal post at the axis of outside, and by the first Pin main couple be temporarily fixed at interim single-column support frame at the top of the principal post of left side and On interim twin columns support frame at the top of the principal post of right side, the main couple positioning plate limit on the lower chord tube of the first Pin main couple is fixed on At support frame top device, then interim stabilization cable wire is fixed between lateral securing device and the first Pin main couple, complete first Step lifting;
2) it after the installation of interim stabilization cable wire, carries out hoisting machinery and unloads hook, then hoisting machinery is moved on into the second secondary design Erect-position position carries out second step lifting, and hoisting machinery lifts by crane the first Pin main couple, and dismantles interim stabilization cable wire, then by first Pin main couple is temporarily fixed at second and closes at the principal post at the axis of outside, then in lateral securing device and the first Pin main truss Interim stabilization cable wire is fixed between frame, method of temporarily fixing, lateral fixing method are identical as first step hoisting process, complete the The lifting of two steps;
3) it so recycles, the first Pin main couple is temporarily anchored at design position, then left side at disassembly design position Interim single-column support frame at the top of principal post and the interim twin columns support frame at the top of the principal post of right side, by anchor bolt by the first Pin master On the main couple support of truss is fixed at design position at the top of principal post;
4) order and the first Pin main couple lifting technique are installed according to main couple, remaining main couple is successively installed, until Installation terminates;
E, jack truss is installed according to main couple installation site.
Further, in step a, it is located at building transverse ends, main couple installation for steel truss ground spelling region Order is successively to carry out from the middle to both ends, is located at building transverse direction one end, main couple peace for steel truss ground spelling region Dress order is successively to carry out from one end to the other side.It is mentioned for steel truss ground spelling region to determine that main couple installs order High main couple installation effectiveness.
Further, in stepb, to interim cable wire tie-rod is drawn, the specific steps are elder generations in main couple at the arch springing of main couple The interim cable wire anchoring bracket of welding first and the second interim cable wire anchor bracket at support, then in two first in the same side To a piece first interim cable wire tie-rod of drawing between interim cable wire anchoring bracket, while in two the second temporary steels for being in the same side Rope is anchored to a piece second interim cable wire tie-rod of drawing between bracket, between the first interim cable wire tie-rod and the second interim cable wire tie-rod Keep set distance.Respectively to drawing one between the second interim cable wire anchoring bracket between the first interim cable wire anchoring bracket Interim cable wire tie-rod, can undertake the horizontal thrust at the arch springing of main couple, will keep setting between two interim cable wire tie-rods away from From guarantee main couple can smoothly land in interim stabilization, be unlikely to interim cable wire tie-rod and interim single-column in descent Support frame, interim twin columns support frame collide, and improve the safety of main couple lifting installation.
Further, in stepb, lateral securing device includes that otic placode, otic placode turnbarrel, otic placode rotary shaft and otic placode are solid Determine anchor bolt, when being installed to lateral securing device, otic placode and otic placode turnbarrel are welded, then by otic placode rotary sleeve Cylinder is nested into otic placode rotary shaft, the fixed anchor bolt of otic placode is then screwed into otic placode rotary shaft, and the fixed anchor bolt of otic placode is locked On otic placode turnbarrel.When not tightening otic placode fixation anchor bolt, otic placode turnbarrel can be rotated in otic placode rotary shaft, be adjusted The direction of whole otic placode, it is convenient that interim stabilization cable wire is fixed between otic placode and main couple, adjust the drawing side of interim stabilization cable wire To and tension, play and main couple laterally consolidated.
Further, in stepb, the length of twin columns support frame bottom beam is greater than the horizontal length of the lower boom of main couple, really It protects the first twin columns support frame column and the second twin columns support frame column is capable of fixing on the top of twin columns support frame bottom beam.
The present invention is by adopting the above-described technical solution, have the advantages that
Erect-position position across outer hoisting machinery is walked and lifted by crane in the present invention is located at building longitudinally across outer two sides, steel truss Face spelling region is located at building transverse ends or building transverse direction one end, so that lifting equipment is stood across outside by near space Steel truss both ends are lifted, and install order according to steel truss, and by main couple, hoisting is to design position one by one, then basis Main couple installation site installs jack truss.The present invention does not need to avoid using covered court when lifting installation across outer two sides Steel Space Truss assembled in situ, which is built, has the conflict for intersecting and implementing with other professional workers of lower part;Without setting up foot hand Frame, bearing supporting frame;Spatial steel structure assembly construction that is curved for support and irregularly arranging is particularly suitable;It is advantageous simultaneously In reduction project cost.
The present invention sets up interim list at the top of all principal posts in left side when specifically lifting installation main couple across outer two sides Column support frame, single-column support frame mainly include single-column support frame column, single-column support frame bottom plate, support frame top device and support Frame anchor bolt, the bottom single-point support with certain globality and support strength, for main couple;In all of right side Interim twin columns support frame is set up at the top of principal post, twin columns support frame mainly includes the first twin columns support frame column, the second twin columns branch Support column, twin columns support frame bottom beam, support frame top device, twin columns support frame bottom plate and support frame anchor bolt, have Certain globality and support strength, the bottom two o'clock for main couple support, meet the radian of main couple, can support with single-column Frame mutual cooperation is fixed temporarily main couple, can improve main couple across outer two sides and lift installation speed.Interim single-column support The effect of frame and interim twin columns support frame is to guarantee that the self weight of main couple is transferred to support frame until principal post by panel point Top.The present invention is in order to achieve the purpose that main couple is temporarily fixed at single-column support frame and twin columns support frame, under main couple Weld main couple positioning plate, the welding position of main couple positioning plate and the setting position of support frame top device in the outer surface of string pipe It corresponds to each other, main couple positioning plate is played to main couple limit and positioning function, and main couple is avoided to carry out vibration displacement, single in this way The lower chord tube of support frame top device and main couple on column support frame and twin columns support frame carries out sufficient face contact, it is ensured that main The node of the lower chord tube of truss is located at support frame top device, is unlikely to destroy and deform.
The present invention installs lateral securing device on single-column support frame bottom plate, installs on twin columns support frame bottom plate lateral steady It is fixedly mounted with and sets, when the main couple positioning plate limit on the lower chord tube of the first Pin main couple is fixed at support frame top device, Interim stabilization cable wire is fixed between lateral securing device and the first Pin main couple, can carry out side to the main couple being fixed temporarily in this way To consolidating, hook is unloaded convenient for hoisting machinery, and moves on to lifting erect-position position in next step.The present invention is lifting installation main truss across outer two sides When frame, main couple can be fixed temporarily and laterally consolidated, considerably reduce the lifting rated capacity requirement of lifting equipment, Improve the service efficiency of lifting equipment.
Detailed description of the invention
The present invention will be further explained below with reference to the attached drawings:
Fig. 1 is that Steel Space Truss forms floor plan in the present invention;
Fig. 2 is in Fig. 1The elevation of main couple at axis;
Fig. 3 is the structure enlargement diagram in Fig. 2 at D;
Fig. 4 is mixture proportioning in construction in the present invention;
Fig. 5 is the plan view of the first Pin main couple hoisting first step in the present invention;
Fig. 6 is the elevation of the first Pin main couple hoisting first step in the present invention;
Fig. 7 is main couple in the present invention to the floor plan for drawing interim cable wire tie-rod;
Structural schematic diagram when Fig. 8 is main couple lateral stability in the present invention;
Fig. 9 is the plan view of the first Pin main couple hoisting second step in the present invention;
Figure 10 is the structural schematic diagram of single-column support frame in the present invention;
Figure 11 is the structural schematic diagram of B-B direction in Figure 10;
Figure 12 be Figure 11 in A-A to structural schematic diagram;
Figure 13 is the structural schematic diagram in Figure 12 at C-C;
Figure 14 is the structural schematic diagram of twin columns support frame in the present invention;
Figure 15 be Figure 14 in E-E to structural schematic diagram;
Figure 16 is the structure enlargement diagram in Figure 15 at F;
Figure 17 is the structural schematic diagram in Figure 16 at G-G.
In figure, 1- main couple;2- jack truss;3- principal post;4- main couple support;5- anchor bolt;6- interim stabilization cable wire; 7- single-column support frame;8- twin columns support frame;The interim cable wire tie-rod of 9-;The interim cable wire tie-rod of 10- first;The interim cable wire of 11- second Tie-rod;The interim cable wire of 12- first anchors bracket;The interim cable wire of 13- second anchors bracket;14- single-column support frame column;15- is mono- Column support frame bottom plate;16- support frame top device;17- support frame anchor bolt;18- otic placode rotary shaft;19- otic placode fixes anchor Bolt;20- otic placode turnbarrel;21- otic placode;22- the first twin columns support frame column;23- the second twin columns support frame column;24- is bis- Column support frame bottom beam;25- twin columns support frame bottom plate;26- main couple positioning plate.
Specific embodiment
As shown in Fig. 1 to Figure 17, the large-scale Roof Truss construction technology of installation, the space are lifted across outer two sides for the present invention Steel truss mainly includes main couple 1 and jack truss 2.Construction technology includes the following steps:
A, preparation of construction
1) determine construction horizontal layout: construction horizontal layout is clear across the walking of outer hoisting machinery, hoisting machinery each time lifting Steel truss ground spelling region is specified in erect-position position.Erect-position position is wherein walked and lifted by crane across outer hoisting machinery is located at building Across outer two sides, steel truss ground spelling region is located at building transverse ends or building transverse direction one end for longitudinal direction.
2) it determines that steel truss installs order, and determines the sequencing of truss ground spelling according to installation order.For steel Truss ground spelling region is located at building transverse ends, and it is successively to carry out from the middle to both ends that main couple 1, which installs order, for Steel truss ground spelling region is located at building transverse direction one end, and it is successively to carry out from one end to the other side that main couple 1, which installs order,. 1 installation effectiveness of main couple is improved for steel truss ground spelling region to determine that main couple 1 installs order.The present invention is specifically real During applying, steel truss ground spelling region is located at building transverse ends, main couple 1 install order be from the middle to both ends according to Secondary progress.
3) the hoisting machinery model specification that hoisting uses is determined, energy needed for meeting the lifting of whole steel structure hoistings Power.
The present invention by floor plan vertical axis be divided into 1.~9., transverse axis is divided intoIt will be across outer lifting Machine-walking region is set to 2-2X and 2-2D, is divided into 2-3-1X~2-3-11X for erect-position position is lifted by crane in the region 2-2X, by 2-2D Erect-position position is lifted by crane in region and is divided into 2-3-1D~2-3-11D, by steel truss ground spelling zone location 2-1B and 2-1N.
B, the lifting of main couple 1 installation preparation
1) to the interim cable wire tie-rod 9 of drawing at the arch springing of main couple 1: first welding the first temporary steel at main couple support 4 Rope anchors bracket 12 and the second interim cable wire anchors bracket 13, then anchors bracket in two the first interim cable wires in the same side To a piece first interim cable wire tie-rod 10 of drawing between 12, while brackets 13 are anchored in two the second interim cable wires in the same side Between to draw a second interim cable wire tie-rod 11, kept between the first interim cable wire tie-rod 10 and the second interim cable wire tie-rod 11 Set distance.Respectively to drawing one between the second interim cable wire anchoring bracket 13 between the first interim cable wire anchoring bracket 12 Interim cable wire tie-rod, can undertake the horizontal thrust at the arch springing of main couple 1, will keep setting between two interim cable wire tie-rods away from From guarantee main couple 1 can smoothly land in interim stabilization, be unlikely to interim cable wire tie-rod and interim single-column in descent Support frame, interim twin columns support frame collide, and improve the safety of the lifting installation of main couple 1.
2) interim single-column support frame 7 is set up at the top of all principal posts 3 in left side: first selecting the single-column support of design height Column 14 is erected, then welds single-column support frame bottom plate 15 in the bottom of single-column support frame column 14, in single-column support frame column 14 Top welding bracing frame top device 16, then single-column support frame bottom plate 15 is fixed on principal post 3 by support frame anchor bolt 17 Top, lateral securing device then is installed on single-column support frame bottom plate 15.
3) interim twin columns support frame 8 is set up at the top of all principal posts 3 on right side: first selecting the first twin columns of design height Support frame column 22 and the second twin columns support frame column 23, the first twin columns support frame column 22 and the second twin columns support frame column 23 There are differences in height.It is welded between the bottom of the first twin columns support frame column 22 and the bottom of the second twin columns support frame column 23 again Twin columns support frame bottom beam 24 is distinguished in the bottom of the first twin columns support frame column 22 and the bottom of the second twin columns support frame column 23 Welding bracing frame top device 16 then welds twin columns support frame bottom plate 25 in the bottom of twin columns support frame bottom beam 24, then will be double Column support frame bottom plate 25 is fixed on the top of principal post 3 by support frame anchor bolt 17, then on twin columns support frame bottom plate 25 Lateral securing device is installed.The length of twin columns support frame bottom beam 24 is greater than the horizontal length of the lower boom of main couple 1, it is ensured that first Twin columns support frame column 22 and the second twin columns support frame column 23 are capable of fixing on the top of twin columns support frame bottom beam 24.
4) main couple positioning plate 26, the welding position of main couple positioning plate 26 are welded in the outer surface of the lower chord tube of main couple 1 It sets and is corresponded to each other with the setting position of support frame top device 16.
Lateral securing device includes the fixed anchor bolt 19 of otic placode 21, otic placode turnbarrel 20, otic placode rotary shaft 18 and otic placode, When being installed to lateral securing device, otic placode 21 and otic placode turnbarrel 20 are welded, then by otic placode turnbarrel 20 It is nested into otic placode rotary shaft 18, the fixed anchor bolt 19 of otic placode is then screwed into otic placode rotary shaft 18, and otic placode is fixed into anchor bolt 19 are locked on otic placode turnbarrel 20.When not tightening otic placode fixation anchor bolt 19, otic placode turnbarrel 20 can be revolved in otic placode It is rotated in shaft 18, adjusts the direction of otic placode 21, it is convenient that interim stabilization cable wire is fixed between otic placode 21 and main couple 1, it adjusts The direction of draw and tension of interim stabilization cable wire, play and are laterally consolidated to main couple 1.
C, 1 ground spelling of main couple.
D, main couple 1 is across circulation lifting is installed step by step outside
1) the first Pin main couple is put by lifting to be carried to across outer hoisting machinery close to the outside ground of outside axis Locate interim stabilization, then the first time for being located in longitudinal travel region across outer hoisting machinery is designed into erect-position position, is built by being located at It builds the longitudinal hoisting machinery across outer two sides of object and lifts and the first Pin main couple is transported to first from outside ground place closes on 3 top of principal post at the axis of outside, and the first Pin main couple is temporarily fixed at the interim single-column support frame at the top of left side principal post 3 7 and the top of right side principal post 3 interim twin columns support frame 8 on, the main couple positioning plate 26 on the lower chord tube of the first Pin main couple limits Position is fixed at support frame top device 16, then fixes interim stabilization cable wire between lateral securing device and the first Pin main couple 6, complete first step lifting.
2) it after the installation of interim stabilization cable wire, carries out hoisting machinery and unloads hook, then hoisting machinery is moved on into the second secondary design Erect-position position carries out second step lifting, and hoisting machinery lifts by crane the first Pin main couple, and dismantles interim stabilization cable wire 6, then by first Pin main couple is temporarily fixed at second and closes at the principal post 3 at the axis of outside, then in lateral securing device and the first Pin master Interim stabilization cable wire 6 is fixed between truss, method of temporarily fixing, lateral fixing method are identical as first step hoisting process, complete It is lifted at second step.
3) it so recycles, the first Pin main couple is temporarily anchored at design position, then left side at disassembly design position The interim twin columns support frame 8 at 3 top of interim single-column support frame 7 and right side principal post at the top of principal post 3, by anchor bolt 5 by the The main couple support 4 of one Pin main couple is fixed at design position on 3 top of principal post.
4) order and the first Pin main couple lifting technique are installed according to main couple, remaining main couple 1 is successively installed, until Installation terminates.
In concrete operations, installing order due to main couple 1 is successively to carry out from the middle to both ends, and the present invention willAt axis Main couple 1 position the first Pin main couple.First by main couple 1 by lifted across outer hoisting machinery be carried to it is closeOutside axis Side, then the design position erect-position 2-3-1X, 2-3-1D will be respectively positioned in across outer hoisting machinery, by double-machine lifting crane main couple 1 From ground handling toThe top of the principal post 3 of axis, and the first Pin main couple 1 is temporarily fixed at facing for 3 top of left side principal post On Shi Danzhu support frame 7 and the interim twin columns support frame 8 at the top of right side principal post 3, hoisting machinery is unloaded before hook in lateral securing device And the first fix interim stabilization cable wire 6 between Pin main couple 1, is laterally consolidated, completes first step lifting.Interim stabilization cable wire After 6 installations, so that it may carry out hoisting machinery and unload hook, and move on to lifting erect-position position 2-3-2X, 2-3-2D in next step, carry out Second step lifting, and interim stabilization cable wire 6 is dismantled, main couple 1 is existedThe principal post 3 of axis is fixed temporarily, then to main truss For 1 side of frame to consolidating, method of temporarily fixing, lateral fixing method are identical as first step hoisting process, complete second step lifting.Such as This circulation, until main couple 1 is installed to where designAxial location.According to the lifting technique of the first Pin main couple 1, successively pacify The main couple 1 of other axis is filled, until installation terminates.
E, jack truss 2 is installed according to 1 installation site of main couple.
Erect-position position across outer hoisting machinery is walked and lifted by crane in the present invention is located at building longitudinally across outer two sides, steel truss Face spelling region is located at building transverse ends or building transverse direction one end, so that lifting equipment is stood across outside by near space Steel truss both ends are lifted, and install order according to steel truss, and by main couple 1, hoisting is to design position one by one, then root Jack truss 2 is installed according to 1 installation site of main couple.The present invention does not need to keep away using covered court when lifting installation across outer two sides Exempt from Steel Space Truss assembled in situ and builds the conflict for existing with other professional workers of lower part and intersecting implementation;Without setting up foot Hand cradle, bearing supporting frame;Spatial steel structure assembly construction that is curved for support and irregularly arranging is particularly suitable;Have simultaneously Conducive to reduction project cost.
The present invention is set up temporarily when specifically lifting installation main couple 1 across outer two sides at the top of all principal posts 3 in left side Single-column support frame 7, single-column support frame 7 mainly include single-column support frame column 14, single-column support frame bottom plate 15, support frame top dress 16 and support frame anchor bolt 17 are set, the bottom single-point branch with certain globality and support strength, for main couple 1 Support;Interim twin columns support frame 8 is set up at the top of all principal posts 3 on right side, twin columns support frame 8 mainly includes that the first twin columns support Erect column 22, the second twin columns support frame column 23, twin columns support frame bottom beam 24, support frame top device 16, twin columns support frame bottom Plate 25 and support frame anchor bolt 17, the bottom two o'clock branch with certain globality and support strength, for main couple 1 Support, meets the radian of main couple 1, can cooperate with single-column support frame 7 and be fixed temporarily to main couple 1, can improve main truss Frame 1 lifts installation speed across outer two sides.The effect of interim single-column support frame 7 and interim twin columns support frame 8 is to guarantee main couple 1 Self weight is transferred to support frame up to the top of principal post 3 by panel point.The present invention is temporarily fixed at list to reach main couple 1 The purpose of column support frame 7 and twin columns support frame 8 welds main couple positioning plate 26, main truss in the outer surface of the lower chord tube of main couple 1 The welding position of frame positioning plate 26 is corresponded to each other with the setting position of support frame top device 16, and main couple positioning plate 26 plays pair The limit of main couple 1 and positioning function, avoid main couple 1 from carrying out vibration displacement, on such single-column support frame 7 and twin columns support frame 8 Support frame top device 16 and the lower chord tube of main couple 1 carry out sufficient face contact, it is ensured that the node of the lower chord tube of main couple 1 At support frame top device 16, it is unlikely to destroy and deforms.
The present invention installs lateral securing device on single-column support frame bottom plate 15, installs side on twin columns support frame bottom plate 25 To securing device, when the limit of main couple positioning plate 26 on the lower chord tube of the first Pin main couple 1 is fixed on support frame top device When at 16, fix interim stabilization cable wire 6 between lateral securing device and the first Pin main couple 1, it in this way can be to being fixed temporarily Main couple 1 is laterally consolidated, and unloads hook convenient for hoisting machinery, and moves on to lifting erect-position position in next step.The present invention is across outer two When side lifts installation main couple 1, main couple 1 can be fixed temporarily and laterally consolidated, lifting equipment is considerably reduced The requirement of lifting rated capacity, improves the service efficiency of lifting equipment.
The above is only specific embodiments of the present invention, but technical characteristic of the invention is not limited thereto.It is any with this hair Based on bright, to solve essentially identical technical problem, essentially identical technical effect is realized, made simple change, etc. With replacement or modification etc., all it is covered by among protection scope of the present invention.

Claims (5)

1. lifting the large-scale Roof Truss construction technology of installation across outer two sides, it is characterised in that include the following steps:
A, preparation of construction
1) determine construction horizontal layout: construction horizontal layout is clear across each the walking of outer hoisting machinery, hoisting machinery lifting erect-position Steel truss ground spelling region is specified in position, wherein erect-position position is walked and lifted by crane across outer hoisting machinery is located at building longitudinal direction Across outer two sides, steel truss ground spelling region is located at building transverse ends or building transverse direction one end;
2) it determines that steel truss installs order, and determines the sequencing of truss ground spelling according to installation order;
3) the hoisting machinery model specification that hoisting uses is determined, ability needed for meeting the lifting of whole steel structure hoistings;
B, main couple lifting installation preparation
1) to the interim cable wire tie-rod of drawing at the arch springing of main couple;
2) interim single-column support frame is set up at the top of all principal posts in left side: the single-column support of design height first being selected to erect Column, then single-column support frame bottom plate is welded in the bottom of single-column support frame column, support is welded at the top of single-column support frame column Top of the trellis device, then single-column support frame bottom plate is fixed on to the top of principal post by support frame anchor bolt, then in single-column branch Lateral securing device is installed on support bottom plate;
3) interim twin columns support frame is set up at the top of all principal posts on right side: first selecting the first twin columns support frame of design height There are differences in height for column and the second twin columns support frame column, the first twin columns support frame column and the second twin columns support frame column, then Twin columns support frame bottom beam is welded between the bottom of the first twin columns support frame column and the bottom of the second twin columns support frame column, Support frame top device is respectively welded in the bottom of first twin columns support frame column and the bottom of the second twin columns support frame column, then Twin columns support frame bottom plate is welded in the bottom of twin columns support frame bottom beam, then twin columns support frame bottom plate is passed through into support frame anchor bolt It is fixed on the top of principal post, lateral securing device then is installed on twin columns support frame bottom plate;
4) main couple positioning plate, the welding position of main couple positioning plate and support frame are welded in the outer surface of the lower chord tube of main couple The setting position of top device corresponds to each other;
C, main couple ground spelling;
D, main couple is across circulation lifting is installed step by step outside
1) the first Pin main couple is faced by lifting to be carried to across outer hoisting machinery close to the outside ground place of outside axis Shi Wending, then the first time that longitudinal travel region is located in across outer hoisting machinery is designed into erect-position position, by being located at building Longitudinal hoisting machinery across outer two sides lift the first Pin main couple from outside ground place be transported to first close on the outside of At the top of principal post at axis, and the first Pin main couple is temporarily fixed to interim single-column support frame and right side at the top of the principal post of left side On interim twin columns support frame at the top of principal post, the main couple positioning plate limit on the lower chord tube of the first Pin main couple is fixed on support At top of the trellis device, then interim stabilization cable wire is fixed between lateral securing device and the first Pin main couple, complete the first step and hang Dress;
2) it after the installation of interim stabilization cable wire, carries out hoisting machinery and unloads hook, then hoisting machinery is moved on into second of design erect-position Position carries out second step lifting, and hoisting machinery lifts by crane the first Pin main couple, and dismantles interim stabilization cable wire, then by the first Pin master Truss is temporarily fixed at second and closes at the principal post at the axis of outside, then lateral securing device and the first Pin main couple it Between fix interim stabilization cable wire, method of temporarily fixing, lateral fixing method are identical as first step hoisting process, complete second step Lifting;
3) it so recycles, the first Pin main couple is temporarily anchored at design position, then left side principal post at disassembly design position Interim twin columns support frame at the top of the interim single-column support frame and right side principal post at top, by anchor bolt by the first Pin main couple Main couple support be fixed at design position at the top of principal post;
4) order and the first Pin main couple lifting technique are installed according to main couple, remaining main couple is successively installed, until installation Terminate;
E, jack truss is installed according to main couple installation site.
2. according to claim 1 lift the large-scale Roof Truss construction technology of installation across outer two sides, it is characterised in that: In step a, it is located at building transverse ends for steel truss ground spelling region, it is from the middle to both ends that main couple, which installs order, It successively carries out, is located at building transverse direction one end for steel truss ground spelling region, it is from one end to another that main couple, which installs order, One end successively carries out.
3. according to claim 1 lift the large-scale Roof Truss construction technology of installation across outer two sides, it is characterised in that: In step b, first is welded at main couple support face to drawing interim cable wire tie-rod the specific steps are elder generations at the arch springing of main couple When cable wire anchoring bracket and the second interim cable wire anchor bracket, then anchor brackets in two the first interim cable wires in the same side Between to drawing a first interim cable wire tie-rod, while it is right between two the second interim cable wires anchoring brackets in the same side A second interim cable wire tie-rod is drawn, keeps set distance between the first interim cable wire tie-rod and the second interim cable wire tie-rod.
4. according to claim 1 lift the large-scale Roof Truss construction technology of installation across outer two sides, it is characterised in that: In step b, lateral securing device includes the fixed anchor bolt of otic placode, otic placode turnbarrel, otic placode rotary shaft and otic placode, to lateral steady It is fixedly mounted with and sets when being installed, otic placode and otic placode turnbarrel are welded, then otic placode turnbarrel is nested into otic placode rotation On axis, the fixed anchor bolt of otic placode is then screwed into otic placode rotary shaft, and the fixed anchor bolt of otic placode is locked on otic placode turnbarrel.
5. according to claim 1 lift the large-scale Roof Truss construction technology of installation across outer two sides, it is characterised in that: In step b, the length of twin columns support frame bottom beam is greater than the horizontal length of the lower boom of main couple.
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