CN105386605A - Installing and constructing method for special-shaped steel truss for large space and ladder-form grandstand - Google Patents
Installing and constructing method for special-shaped steel truss for large space and ladder-form grandstand Download PDFInfo
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- CN105386605A CN105386605A CN201510780398.XA CN201510780398A CN105386605A CN 105386605 A CN105386605 A CN 105386605A CN 201510780398 A CN201510780398 A CN 201510780398A CN 105386605 A CN105386605 A CN 105386605A
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- grandstand
- hoisting
- blocking unit
- hoisting frame
- rack
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 29
- 239000010959 steel Substances 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title abstract description 15
- 238000010276 construction Methods 0.000 claims abstract description 23
- 230000000903 blocking effect Effects 0.000 claims description 47
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 20
- 230000001737 promoting effect Effects 0.000 claims description 17
- 238000009434 installation Methods 0.000 claims description 15
- 229910052742 iron Inorganic materials 0.000 claims description 10
- 238000003466 welding Methods 0.000 abstract description 5
- 238000000638 solvent extraction Methods 0.000 abstract 6
- 239000000725 suspension Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036244 malformation Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Ladders (AREA)
Abstract
The invention discloses an installing and constructing method for a special-shaped steel truss for large space and ladder-form grandstand, comprising the following steps: 1, constructing multiple hoisting frame bases and installing a steel structure hoisting frame and a hoisting frame platform; 2, installing hoisting devices on the hoisting frame platform and connecting a steel strand to the lower end of each hoisting device; 3, installing a temporary tower on the ground of a first hoisting partitioning unit between ladder-form grandstands at two sides, and splicing the first hoisting partitioning unit of a net rack on the temporary tower; 4, installing a temporary lifting appliance at the bottom end of each steel strand, and then connecting the temporary lifting appliance with the first hoisting partitioning unit; 5, starting all the hoisting devices at the same time so as to hoist the first hoisting partitioning unit, and then respectively splicing second hoisting partitioning units by extending from the left end and the right end of the first hoisting partitioning unit to the side of the grandstand; and 6, repeating step 5 until completing the splicing of the grandstand side of the whole net rack used as the roof of a gymnasium, and welding for fixing. By adopting the method, construction speed can be accelerated, and space can be effectively utilized.
Description
Technical field
The present invention relates to Construction of The Grids method, particularly relate to a kind of special-shaped reticulated shell construction method of installation.
Background technology
Complex Different Shape longspan structure Elements of Space Grid Truss is installed, and unit piece is too much, and welding capacity is large, welding quality and required precision higher.Require higher to site requirements and high-altitude space stiffness buckling safety factor, therefore need to select appropriate construction method to carry out installing to ensure security and stability requirement.Rack bottom building complicated layout in addition, on-the-spot large tonnage crane walking is more difficult.Rack is installed will guarantee the coefficient of stability and space stiffness, can effectively bear non-symmetrical load, point load and dynamic load, and have good anti-seismic performance.
1, application number is: the Chinese patent of 2012103910974 discloses " rack hoisting frame discharging method ", comprises the following steps: at the top erection support of each rack support; A plurality of hoisting frame interval is arranged on the top of rack support; By the jack at hoisting frame top, space truss structure is promoted to height of support; By rod member connection network shelf structure and the bearing of rack cradle top not installing hoisting frame; The not interrupted rod member of access path is preset between the bearing of the rack cradle top of connection hoisting frame and space truss structure; According to the pulling force of preset value partial relief jack; Default access path place is hindered to offer through hole at hoisting frame frame wall; By through hole connection network shelf structure and the rack cradle top bearing installing hoisting frame; Remove whole pulling force of jack; Excision hoisting frame.Rack hoisting frame discharging method disclosed in this patent, different from the construction method position of long-span deformed Elements of Space Grid Truss construction method of installation.
2, application number is: the Chinese patent of 2012103908419 discloses " the long control method of flexible hoisting steel wire rope for rack lifting process ", comprise the following steps: set up space coordinates at the construction field (site), measure and obtain the space coordinates in the described suspension centre hanger hole hole heart and the grid node center of circle; Utilize computer according to the spatial coordinated information in the described suspension centre hanger hole hole heart and the grid node center of circle, build the spatial model in the described suspension centre hanger hole hole heart and the described grid node center of circle according to a pre-set zoom ratio; Utilize the spatial model in the described suspension centre hanger hole hole heart and the described grid node center of circle, build the wire rope areal model be connected between described suspension centre and described grid node; The length of actual required wire rope is obtained according to described wire rope areal model.The long control method of flexible hoisting steel wire rope of rack lifting process disclosed in this patent, different from the construction part of long-span deformed Elements of Space Grid Truss construction method of installation.
3, application number is: the Chinese patent of 2009100563778 discloses " a kind of integral lifting apparatus for steel structure net rack ", comprise lifting bracket, lift cylinder, lower suspension centre and promote steel strand, described lift cylinder is fixedly installed on lifting bracket, it is characterized in that, described lifting bracket is symmetricly set on concrete capital; Described lower suspension centre is distribution beam, and described distribution beam one end is connected to steel strand lower end, and the other end is fixedly connected with the frame ball of rack to be hoisted; Described lift cylinder, distribution beam and lifting steel strand are symmetricly set on the concrete capital left and right sides.The lifting of structure rack is carried out by adopting lifting appliance of the present invention, pillar stress form is made to become axial compression, meet rod structure design force request, decrease the adverse effect of lifting process to concrete post, effectively can control the malformation in suspension centre place rack lifting process simultaneously.That rack lifting appliance is different from the construction part of long-span deformed Elements of Space Grid Truss construction method of installation disclosed in this patent.
Summary of the invention
The object of the invention is to the deficiency overcoming prior art, there is provided that a kind of construction cost is low, the duration is short, security and stability is good, space stiffness is large, can effectively bear non-symmetrical load, point load and dynamic load, and there is the long-span deformed Elements of Space Grid Truss construction method of installation of good anti-seismic performance.
The profile iron rack construction method of installation at large space and ladder grandstand place, it comprises the following steps:
(1) respectively along the left and right sides, symmetrically arranged sports palace ladder grandstand inner side and build polylith hoisting frame basis along the interval, direction being parallel to ladder grandstand, then on the hoisting frame basis described in every block, steel structure hoisting frame is all installed, then on described steel structure hoisting frame, hoisting frame platform is installed;
(2) on described hoisting frame platform, lifter is installed, connects steel strand in described lifter lower end;
(3) temporary towers is installed on the between two side steps grandstands first ground promoting blocking unit, on temporary towers, first of assembled rack promotes blocking unit, described first distance promoting two ends, blocking unit left and right is less than the distance between the inner side of two side steps grandstands, and the described first distance promoting blocking unit rear and front end is less than the distance before and after sports palace between side frame trestle and Vierendeel girder;
(4) in the bottom of each root steel strand, interim suspender is installed, then described interim suspender and first is promoted blocking unit and be connected;
(5) start whole lifter, promote first and promote blocking unit to the first setting elevation location on grandstand, the two ends, left and right then promoting blocking unit first extend splicing second respectively to grandstand side and promote blocking unit simultaneously;
(6) repeat described in step (5) until complete overall rack grandstand side assembled as roof, sports palace;
(7) net rack support is installed on the top of the wall frame column in sports palace, is unloaded by assembled good rack and falls on bearing and be welded and fixed.
Adopt the beneficial effect of this method to be: in this method, unit piece is too much, and welding capacity is large, welding quality and required precision higher.Rack is installed will guarantee the coefficient of stability and space stiffness, its rod member crossed in the air had both been stressed member, it is again supporting rod, mutual when working for supporting, collaborative work, therefore its good integrity, good stability, space stiffness is large, can effectively bear non-symmetrical load, point load and dynamic load, and have good anti-seismic performance.Meanwhile, under joint load effect, each rod member mainly bears axial pulling force and pressure, can give full play to the intensity of material, saves steel.And space truss structure combination is regular, the shape of great deal of nodes and rod member, measure-alike, and rod member and node specification less, be convenient to produce, product quality is high, and on-site consolidation is easy, can improve speed of application.Space truss structure not only achieves and utilizes the rod member bundle compared with small-sized to build longspan structure, and structure takes up room less, more effectively can utilize space.
Accompanying drawing explanation
Fig. 1 is the hoisting frame basis schematic top plan view of the profile iron rack construction method of installation at a kind of large space of the present invention and ladder grandstand place;
Fig. 2 is that first of the profile iron rack construction method of installation at a kind of large space of the present invention and ladder grandstand place promotes the assembled schematic diagram of blocking unit 1 rack;
Fig. 3 is the assembled schematic diagram of first time grandstand rack of the profile iron rack construction method of installation at a kind of large space of the present invention and ladder grandstand place;
Fig. 4 is the assembled schematic diagram of second time grandstand rack of the profile iron rack construction method of installation at a kind of large space of the present invention and ladder grandstand place;
Fig. 5 is the assembled schematic diagram of third time grandstand rack of the profile iron rack construction method of installation at a kind of large space of the present invention and ladder grandstand place;
Fig. 6 is that last lattice grandstand of the profile iron rack construction method of installation at a kind of large space of the present invention and ladder grandstand place splices rack schematic diagram.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
The profile iron rack construction method of installation at a kind of large space of the present invention as shown in drawings and ladder grandstand place, it comprises the following steps:
(1) respectively along the left and right sides, symmetrically arranged sports palace ladder grandstand 7 inner side and along be parallel to ladder grandstand 7 interval, direction build polylith hoisting frame basis 12, then on the hoisting frame basis 12 described in every block, steel structure hoisting frame 13 is all installed, then on described steel structure hoisting frame 13, hoisting frame platform 4 is installed;
(2) on described hoisting frame platform 4, lifter 5 is installed, connects steel strand 3 in described lifter 5 lower end;
(3) temporary towers 14 is installed on the between two side steps grandstands 7 first ground promoting blocking unit 1, on temporary towers, first of assembled rack promotes blocking unit 1, described first distance promoting blocking unit about 1 two ends is less than the distance between the inner side of two side steps grandstands 7, described first distance promoting blocking unit 1 rear and front end is less than the distance before and after sports palace between side frame trestle and Vierendeel girder so that hang rise in two side steps grandstands 7 and sports palace before and after side frame trestle and Vierendeel girder do not produce interference;
(4) in the bottom of each root steel strand 3, interim suspender 2 is installed, then described interim suspender 2 and first is promoted blocking unit 1 and be connected;
(5) start whole lifter simultaneously, promote the first setting elevation location on the first lifting blocking unit 1 to grandstand, the two ends, left and right then promoting blocking unit 1 first extend splicing second respectively to grandstand side and promote blocking unit 6;
(6) repeat described in step (5) until complete overall rack grandstand side assembled as roof, sports palace;
(7) net rack support is installed on the top of the wall frame column 15 in sports palace, is unloaded by assembled good rack and falls on bearing and be welded and fixed.
Embodiment 1
(1) respectively along the left and right sides, symmetrically arranged sports palace ladder grandstand 7 inner side and along be parallel to ladder grandstand 7 interval, direction build polylith hoisting frame basis 12, then on the hoisting frame basis 12 described in every block, steel structure hoisting frame 13 is all installed, then on described steel structure hoisting frame 13, hoisting frame platform 4 is installed;
(2) on described hoisting frame platform 4, lifter 5 is installed, connects steel strand 3 in described lifter 5 lower end;
(3) temporary towers 14 is installed on the between two side steps grandstands 7 first ground promoting blocking unit 1, on temporary towers, first of assembled rack promotes blocking unit 1, described first distance promoting blocking unit about 1 two ends is less than the distance between the inner side of two side steps grandstands 7, described first distance promoting blocking unit 1 rear and front end is less than the distance before and after sports palace between side frame trestle and Vierendeel girder so that hang rise in two side steps grandstands 7 and sports palace before and after side frame trestle and Vierendeel girder do not produce interference;
(4) in the bottom of each root steel strand 3, interim suspender 2 is installed, then described interim suspender 2 and first is promoted blocking unit 1 and be connected;
(5) start whole lifter simultaneously, promote first and promote 6.7 meters, distance ground on blocking unit 1 to grandstand, the two ends, left and right then promoting blocking unit 1 first extend splicing second respectively to grandstand side and promote blocking unit 6;
(6) start whole lifter simultaneously, promote the first lifting blocking unit 1 and promote 8.7 meters, distance ground on blocking unit 6 to grandstand with expand splicing second, by the two ends of the second lifting blocking unit 6 respectively to extending out splicing the 3rd lifting blocking unit 8;
(7) start whole lifter simultaneously, promote the first lifting blocking unit 1 and expand second of splicing and promote 10.7 meters, distance ground on blocking unit 6, the 3rd lifting blocking unit 8 to grandstand, the two ends promoting blocking unit 8 by the 3rd promote blocking unit 9 respectively to extending out splicing the 4th;
(8) start whole lifter simultaneously, promote blocking unit 1, second by first and promote blocking unit, 6, the 3rd lifting blocking unit 8 and the 4th promotes blocking unit 9 and overall increases to upper 21.9 meters, distance ground, wall frame column 15 top, promote blocking unit 9 end the 4th respectively and extend out last graticule mesh frame 10 of splicing, complete overall rack grandstand side assembled as roof, sports palace;
(9) net rack support is installed on the top of the wall frame column 15 in sports palace, is unloaded by assembled good rack and falls on bearing and be welded and fixed.
Adopt this method, the rod member crossed in the air had been both stressed member, was again supporting rod, and mutual when working is for supporting, collaborative work, good integrity, good stability, space stiffness is large, can effectively bear non-symmetrical load, point load and dynamic load, and have good anti-seismic performance.Meanwhile, under joint load effect, each rod member mainly bears axial pulling force and pressure, can give full play to the intensity of material, saves steel and reaches 8%.Structure can be simultaneously symmetrical assembled, reduces scaffold building, ensure structure installment stress balance.Improve speed of application 18%.Space truss structure not only achieves and utilizes the rod member bundle compared with small-sized to build longspan structure, and structure takes up room less, more effectively can utilize space.
Claims (1)
1. the profile iron rack construction method of installation at large space and ladder grandstand place, is characterized in that it comprises the following steps:
(1) respectively along the left and right sides, symmetrically arranged sports palace ladder grandstand inner side and build polylith hoisting frame basis along the interval, direction being parallel to ladder grandstand, then on the hoisting frame basis described in every block, steel structure hoisting frame is all installed, then on described steel structure hoisting frame, hoisting frame platform is installed;
(2) on described hoisting frame platform, lifter is installed, connects steel strand in described lifter lower end;
(3) temporary towers is installed on the between two side steps grandstands first ground promoting blocking unit, on temporary towers, first of assembled rack promotes blocking unit, described first distance promoting two ends, blocking unit left and right is less than the distance between the inner side of two side steps grandstands, and the described first distance promoting blocking unit rear and front end is less than the distance before and after sports palace between side frame trestle and Vierendeel girder;
(4) in the bottom of each root steel strand, interim suspender is installed, then described interim suspender and first is promoted blocking unit and be connected;
(5) start whole lifter, promote first and promote blocking unit to the first setting elevation location on grandstand, the two ends, left and right then promoting blocking unit first extend splicing second respectively to grandstand side and promote blocking unit simultaneously;
(6) repeat described in step (5) until complete overall rack grandstand side assembled as roof, sports palace;
(7) net rack support is installed on the top of the wall frame column in sports palace, is unloaded by assembled good rack and falls on bearing and be welded and fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510780398.XA CN105386605A (en) | 2015-11-13 | 2015-11-13 | Installing and constructing method for special-shaped steel truss for large space and ladder-form grandstand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510780398.XA CN105386605A (en) | 2015-11-13 | 2015-11-13 | Installing and constructing method for special-shaped steel truss for large space and ladder-form grandstand |
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| CN105386605A true CN105386605A (en) | 2016-03-09 |
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| CN201510780398.XA Pending CN105386605A (en) | 2015-11-13 | 2015-11-13 | Installing and constructing method for special-shaped steel truss for large space and ladder-form grandstand |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3977536A (en) * | 1975-06-09 | 1976-08-31 | M.M. Sundt Construction Company | Concrete construction method and apparatus using "flying" truss deck forms |
| JPH06288009A (en) * | 1993-04-02 | 1994-10-11 | Shimizu Corp | Construction of large space truss |
| CN101586400A (en) * | 2008-05-22 | 2009-11-25 | 中国十五冶金建设有限公司 | Blocking partition adding type lift installation method of net rack |
| CN201665992U (en) * | 2010-03-23 | 2010-12-08 | 陕西建工集团第二建筑工程有限公司 | Whole lifting platform of large steel net frame |
| CN103352576A (en) * | 2013-07-24 | 2013-10-16 | 山东锦城钢结构有限责任公司 | Externally expanding, assembling, converting and lifting method for medium/small span steel structure roof net rack |
-
2015
- 2015-11-13 CN CN201510780398.XA patent/CN105386605A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3977536A (en) * | 1975-06-09 | 1976-08-31 | M.M. Sundt Construction Company | Concrete construction method and apparatus using "flying" truss deck forms |
| JPH06288009A (en) * | 1993-04-02 | 1994-10-11 | Shimizu Corp | Construction of large space truss |
| CN101586400A (en) * | 2008-05-22 | 2009-11-25 | 中国十五冶金建设有限公司 | Blocking partition adding type lift installation method of net rack |
| CN201665992U (en) * | 2010-03-23 | 2010-12-08 | 陕西建工集团第二建筑工程有限公司 | Whole lifting platform of large steel net frame |
| CN103352576A (en) * | 2013-07-24 | 2013-10-16 | 山东锦城钢结构有限责任公司 | Externally expanding, assembling, converting and lifting method for medium/small span steel structure roof net rack |
Non-Patent Citations (1)
| Title |
|---|
| 肖炽、徐春祥: "网壳结构外扩法安装", 《第十届空间结构学术会议论文集》 * |
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Application publication date: 20160309 |