CN102337785B - Construction process of ultra-large-span net-frame arch-shaped shed type storage silo - Google Patents
Construction process of ultra-large-span net-frame arch-shaped shed type storage silo Download PDFInfo
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- CN102337785B CN102337785B CN 201110238425 CN201110238425A CN102337785B CN 102337785 B CN102337785 B CN 102337785B CN 201110238425 CN201110238425 CN 201110238425 CN 201110238425 A CN201110238425 A CN 201110238425A CN 102337785 B CN102337785 B CN 102337785B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/32—Arched structures; Vaulted structures; Folded structures
- E04B1/3205—Structures with a longitudinal horizontal axis, e.g. cylindrical or prismatic structures
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/342—Structures covering a large free area, whether open-sided or not, e.g. hangars, halls
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H7/00—Construction or assembling of bulk storage containers employing civil engineering techniques in situ or off the site
- E04H7/22—Containers for fluent solids, e.g. silos, bunkers; Supports therefor
- E04H7/24—Constructions, with or without perforated walls, depending on the use of specified materials
- E04H7/30—Constructions, with or without perforated walls, depending on the use of specified materials mainly of metal
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/32—Arched structures; Vaulted structures; Folded structures
- E04B2001/3235—Arched structures; Vaulted structures; Folded structures having a grid frame
- E04B2001/3241—Frame connection details
- E04B2001/3247—Nodes
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C2003/0486—Truss like structures composed of separate truss elements
- E04C2003/0491—Truss like structures composed of separate truss elements the truss elements being located in one single surface or in several parallel surfaces
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C2003/0486—Truss like structures composed of separate truss elements
- E04C2003/0495—Truss like structures composed of separate truss elements the truss elements being located in several non-parallel surfaces
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- Structural Engineering (AREA)
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- Electromagnetism (AREA)
- General Engineering & Computer Science (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention relates to a construction process of an ultra-large-span net-frame arch-shaped shed type storage silo, which is characterized by comprising: obtaining dimensions of node rods of a net frame via a CFD (computational fluid dynamic) numerical wind tunnel computing technology and a finite element algorithm at first according to local weather conditions, the most adverse weather conditions and physical parameters of an arch-shaped shed, i.e. the ball head diameter of each node and geometric parameters of the rods on each node, and preparing a construction drawing, wherein the construction drawing at least comprises the serial number of each node and the number of rods on each node; and dividing construction steps into installation of basic units and installation of overhead cantilever units. Scaffolds are not needed to be erected in a whole house. The invention has the advantages that the time and materials can be saved, and the process is safe and reliable.
Description
Technical field
The present invention relates to a kind of manufacturing approach of logistics equipment, especially a kind of manufacturing approach of steel structure net rack storage bin, specifically a kind of span are more than 100 meters, and height is in the super-span rack shed storage bin construction technology more than 60 meters.
Background technology
At present, along with China's rapid economy development and environmental protection requirement, industries such as coal, electric power, cement, chemical industry are increasing to the raw-material demand of graininess such as coal, and therefore its storage facility is also developed on a large scale.These storage facilities mainly are to be used for storing granular, powdery former (ripe) material, and the effect that they have played environmental protection and have keeped out wind and rain has not only been protected raw material not suffer a loss but also protected operation equipment.
Increasing along with the scale of colliery, power plant, cement plant, requirement on environmental protection is increasingly high, the construction quantity and the scale of storage bin are also increasing, its span, highly, memory space is also in continuous increase, and is also increasingly high to its technical requirements.
At present, the storage bin that uses in the society generally is divided into two kinds of form of structure: a kind of dome storage bin for circle (ball) shape, and another kind is shed type storage bin, it is a kind of space structures of large span, is applicable to that bolt-ball net frame manufactures and designs.
The bolt-ball net frame arch shed structure can be widely used in industry and civilian construction, in civilian construction, is mainly used in large span public buildings such as stadiums, aerodrome terminal, hangar, railway terminal, conference centre; In industry, be mainly used in factory building, warehouse roof system of various storage bins, shed and various large spans etc.
In recent years; To progressively developing into 100-120m, and being tending towards of oriented 130-140m development, building area is also by 1-3 Wan ㎡ 5-10 Wan ㎡ up till now by 40-60m for the span of bolt-ball net frame shed; And further develop to 10-20 ten thousand ㎡; Its reserves are also by ten thousand tons of ten thousand tons of 5-10 up till now of 1-3, and progressively to 200,000 tons of development, its structure is also developed to rack, pipe trussed construction by traditional steel bar concrete, steel truss.Because the bolt-ball net frame shed is the space structures system, its loading characteristic is superior, can make super-span, and the shed product of super large reserves is that other structures are irreplaceable.
Bolt-ball net frame arch shed structure, traditional construction technology are all round victory scaffold mostly, and its scaffold expense will account for 1/3 of whole building cost, and long in time limit, poor stability.
According to statistics, in China, fast-developing in recent years industry has produced wilderness demand to raw material, and annual span is more than hundred meters, and the monomer surface area will be above 100 above the shed storing canopy of 20000 ㎡.Especially in recent years the lifting significantly of coal price; The owner is to setting up coal store and not only can reduce the loss of coal but also helping protecting stacker-reclaimer and the benefit that produces has also had stronger common recognition; So; No matter the old and new mining area all in a large amount of investigations, seek the form of structure of not only practicing thrift cost but also can satisfy national requirements for environmental protection, and require span increasing, highly increasingly high, and super-span space truss structure coal store shed has become one of first-selected structure; Wide influence is to the indoor coal storage yard of electric power for above-mentioned situation, and the raw material of cement, iron and steel system is stacked storehouse etc.No matter domestic is that industry grassroot project warehouse sheds such as coal, iron and steel, cement have been classified as one of necessary environmental protection project, and requires to design simultaneously, construct with its primary structure, comes into operation jointly.And see also do not have other form of structure can substitute it from present structural condition, no matter be that intersection truss, rope membrane structure all can't substitute.But receive the influence of traditional design construction theory; For span at the steel using amount of the super-span rack shed more than the 100m generally about 80kg/ ㎡; Duration is at 6-12 more than the month; Cost is more than 1200-1500 Yuan/㎡, and the cost that this not only directly has influence on the storage bin structure also has influence on the popularization in market.
In sum; Build the super-span storage bin; Especially super-span shed storage bin is a kind of development trend; Market prospects are wide, but how guarantee under the safe prerequisite present steel using amount to be dropped to reasonable level, will drop to 3-6 month the duration, cost in 1000 Yuan/㎡, be the key that improves the market competitiveness.
Summary of the invention
The objective of the invention is to cycle length that exists in the construction of existing super-span storage bin, complex process, cost height, problem that steel using amount is big, invent a kind of steel content, easy construction, quality assurance, safe and reliable super-span rack shed storage bin construction technology of reducing.
Technical scheme of the present invention is:
A kind of super-span rack shed storage bin construction technology is characterized in that it may further comprise the steps:
At first; According to local meteorological condition; Press least favorable meteorological condition and shed physical parameter, adopt CFD numerical value wind-tunnel computing technique and finite element algorithm to obtain the size of grid node rod member, promptly the bulb diameter of each node is gone up the geometric parameter of the rod member of installation with it; Draw construction drawing, should comprise the numbering of each node and the rod member number of each node on this construction drawing at least;
Secondly, get the raw materials ready according to result of calculation, accomplishing the node rod member in advance on ground is the preliminary connection of little assembly unit, presses node serial number and arranges, and also can in work progress, accomplish the node rod member by the node serial number of construction drawing is the preliminary connection of little assembly unit;
The 3rd, accomplish the installation of elementary cell, this elementary cell is made up of three sections arch modules at least, and the axial length of every section arch module is between 12-18 rice; Earlier near the installation site, be connected to form corresponding arch module with little assembly unit; One side of wherein two sections arch modules that link to each other with ground is linked to each other with the basis, ground; Another side supports with support tower, and then with tower crane middle arch module is sling, Yi Bian its both sides are linked to each other with the cantilever end of the arch module that has linked to each other with the basis, ground respectively; Thereby accomplish the installation of elementary cell; Equal the arch number of modules and subtract one support tower if the quantity of arch module during more than or equal to four, should be built quantity, so that obtain due support in the middle arch module installation process;
The 4th, carry out high-altitude overhanging with little assembly unit to the shed two ends from the elementary cell both sides and install, encorbelment and must trap close when installing, to guarantee the integral rigidity of rack, direct whole rack is installed and is finished;
The 5th, after installing and finish, rack carries out the installation of subsequent panel and internal unit again.
Described span is not less than 100 meters, highly is not less than 60 meters.
Said for accelerating installation progress, each shed can be provided with more than one elementary cell along the shed length direction.
Said support tower is that bolted tool-type adjustable shelf is so that recycle; The basis of support tower is according to the height and the carrying situation of support; Adopt sleeper and steel plate to make simple and easy cushion cap below 15 meters, 15-30 rice adopts whole steel cushion cap, should adopt concrete bearing platform more than 30 meters; Support tower installs uses the cable wind rope fixation; And carry out anti-skidding fulcrum on the support tower top, guaranteeing provides reliable supporting for rack lower edge ball.
Beneficial effect of the present invention:
1, the present invention has adopted computer simulation wind-tunnel technology, and the wind that changes original whole shed wind tunnel test into grid node carries simulated test, has increased the accuracy of test greatly.Changed into by the node Modeling Calculation by overall structure calculating simultaneously, resultant structure more can accurately reflect the node stressing conditions, so accuracy is higher; Replace test room's wind tunnel test, reduced the time, practiced thrift cost.
2, the present invention has adopted the refinement load to distribute, and according to the variation of each layer load from top to bottom size of mesh opening is set.Therefore, design and calculation method is more scientific and reasonable, has practiced thrift steel using amount to greatest extent.
3, under the situation that does not have ripe method for designing, adopt finite element program and multiple rack one-off design software to combine, the checking that compares is guaranteeing to have reduced steel content (span 110m, steel content 30kg/ ㎡ under the condition of structural safety; Span 120m, steel content 35-40kg/ ㎡).
4, for guaranteeing structural safety, increased in work progress, under worst form of structure, received the simulation checking computations of maximum disadvantageous wind load, for the feasibility of construction safety and constructure scheme has obtained foundation.Examined basis.
5, the present invention is divided into two construction sections in basicly stable unit and the little assembly of high-altitude overhanging unit with structure construction and installs; With the stabilization element is the load-carrying members that the little assembly of high-altitude overhanging unit is installed; Promptly bearing follow-up working load with the supporting capacity of structure itself, is science very, and it has given prominence to the emphasis of contradiction; Having simplified construction sequence, is the breakthrough of technical scheme.
6, adopt mounting method of the present invention, installation cost is reduced greatly, be merely 1/2 of conventional mounting expense, the duration is merely 1/3, and quality assurance, and is safe and reliable.
7, the present invention can reduce cost for the owner, increases usage space, and be not merely society generalization and lay a good foundation, and for having played the effect of laying a foundation to the development of large span more.
8, the present invention lays a good foundation for the construction of ultra-large storage bin.
9, this life cancel all round victory foot rest; The super-span rack is resolved into two parts of stabilization element and unit in bulk; Adopt installation on ground, the brand-new constructure scheme of high-altitude assembling has been practiced thrift cost, has shortened the duration, has been stablized quality, safety has been secure.
Description of drawings
Fig. 1 is the front view of support tower of the present invention.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the plan structure sketch map of elementary cell of the present invention.
Fig. 4 is the two sections arch module scheme of installations that link to each other with the basis, ground in the syllogic elementary cell of the embodiment of the invention.
Fig. 5 is the arch module lifting sketch map of the interlude in the syllogic elementary cell of the embodiment of the invention.
Fig. 6 is the two sections arch module scheme of installations that link to each other with the basis, ground in the four-part form elementary cell of the embodiment of the invention.
Fig. 7 is the arch module lifting sketch map of an interlude in the four-part form elementary cell of the embodiment of the invention.
Fig. 8 is the sketch map of the arch module lifting of an interlude in the four-part form elementary cell of the embodiment of the invention when putting in place.
Fig. 9 is the arch module lifting sketch map of another interlude in the four-part form elementary cell of the embodiment of the invention.
Figure 10 is the sketch map after the four-part form elementary cell assembly unit of the embodiment of the invention finishes.
Figure 11 is a job site scheme of installation of encorbelmenting in the air when installing of the present invention.
Figure 12 is the lifting sketch map in the little assembly of the lower chord of the present invention unit.
Figure 13 is the lifting sketch map in the little assembly of the upper chord of the present invention unit.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further described.
Shown in Fig. 1-13.
A kind of super-span rack shed storage bin construction technology, it may further comprise the steps:
At first, according to local meteorological condition, press least favorable meteorological condition and shed physical parameter; Span is more than 100 meters, and highly 60 meters, reserves are 80000 tons; Adopt CFD numerical value wind-tunnel computing technique and finite element algorithm to obtain the size of grid node rod member; Be the bulb diameter of each node and the geometric parameter of its rod member of go up installing, draw construction drawing, should comprise the numbering of each node and the rod member number of each node on this construction drawing at least; It is that the computational methods of relevant spherical storage bin in 200810244134.2 the patent of invention realize at the application number of first to file that concrete computational methods can adopt the applicant;
Secondly; Get the raw materials ready according to result of calculation; Accomplishing the node rod member in advance on ground is the preliminary connection of little assembly unit (like Figure 12,13), presses node serial number and arranges, and also can in work progress, accomplish the node rod member by the node serial number of construction drawing is the preliminary connection of little assembly unit;
The 3rd, accomplish the installation of elementary cell, this elementary cell is made up of three sections arch modules at least, and the axial length of every section arch module is between 12-18 rice; Earlier near the installation site, be connected to form corresponding arch module with little assembly unit; One side of wherein two sections arch modules that link to each other with ground is linked to each other with the basis, ground; Another side supports with support tower, and then with tower crane middle arch module is sling, Yi Bian its both sides are linked to each other with the cantilever end of the arch module that has linked to each other with the basis, ground respectively; Thereby accomplish the installation of elementary cell; Equal the arch number of modules and subtract one support tower if the quantity of arch module during more than or equal to four, should be built quantity, so that obtain due support in the middle arch module installation process;
The 4th, carry out high-altitude overhanging with little assembly unit to the shed two ends from the elementary cell both sides and install, encorbelment and must trap close when installing, to guarantee the integral rigidity of rack, direct whole rack is installed and is finished;
The 5th, after installing and finish, rack carries out the installation of subsequent panel and internal unit again.
Details are as follows:
One, refinement joint load, the design of innovation space truss structure, reduction steel content.
1, adopts CFD numerical value wind-tunnel technology, replace the wind tunnel simulation test, make evaluation more near actual safe and reliable, to reduce experimentation cost, save design time.
2, optimize grid and arrange, choose the combination of least favorable load by the actual conditions of local wind speed and building, refinement load numerical value, accurate distribution is to each grid node.Obtain the relation of load parameter and economic indicator.
3, use finite element method, obtain the cross section of each node rod member of rack, design the space truss structure drawing.Owing in the design process load is refine to grid node, can choose bar cross section according to the difference of load numerical value, so comparable traditional design reduces steel content 10-15%.
Two, adopt following construction technology to accomplish the installation of whole shed rack
Its basic principle: engineering is divided into basicly stable unit and two construction sections of high-altitude overhanging assembly unit; At first accomplish the installation of the basicly stable unit rack of a 12-18m (about 4-6 grid) at least along the rack length direction; Bear follow-up working load by its stabilization element structure; Adopt the high altitude bulk moulding of little assembly unit, extend one by one, accomplish whole space truss structure.
The construction technology of basicly stable unit: the construction of basicly stable unit rack, the structure installation that not only will accomplish itself also will have the ability of bearing follow-up construction stage working load, is called elementary cell.Can select 4-6 grid (general 12-18m) width to satisfy rigidity of structure requirement, can bear follow-up working load along building vertically middle (or end) according to the requirement of building length and operation.
2.1 construction technology process:
2.2 preparation of construction:
2.2.1 according to design drawing, the installation guide book gives training the personnel that participate in installation, the technology of carrying out is told somebody what one's real intentions are with safety.
2.2.2 get all the used worker's facility ready, guarantee that it is functional.
2.2.3 to the member of marching into the arena apply for checking and examination, sampling Detection immediately, carry out the inspection record of the member of marching into the arena.
2.2.4 the rod member of marching into the arena, bolt sphere are sorted, by specification, use the position, check clearly, separate and stack, carry out sign, in order to using.
2.2.5 be ready to relevant quality examination utensil and guarantee in sense cycle, and overall process quality examination record form.
2.3 measurement unwrapping wire:
At the good cross hairs of basic end face bullet of having constructed, close inspection built-in fitting alignment error, the position of supporting surface built-in fitting, absolute altitude, levelness allowable variation are answered the compliant requirement.
2.4 support tower is installed:
2.4.1 for ease of recycling, support tower should be made bolted tool-type adjustable shelf, like Fig. 1, shown in 2.
2.4.2 the support tower basis is according to the height and the carrying situation of support, available sleeper and steel plate below 15 meters are made simple and easy cushion cap, and 15-30 rice can be made whole steel cushion cap, should make concrete bearing platform more than 30 meters.
2.4.3 install support tower according to design attitude and absolute altitude, and use the cable wind rope fixation.Anti-skidding fulcrum should be carried out in the support tower top, and guaranteeing provides reliable supporting to rack lower edge ball.
2.5 the installation of elementary cell:
2.5.1 the rack elementary cell is to be used to bear working load in order at first to form the space structures unit with certain rigidity, the middle part width that generally is selected in whole rack is a 4-6 grid (as shown in Figure 3).
2.5.2 generally be divided into A, B, three sticks of C during the elementary cell assembly unit, at first near the installation on ground the installation site is accomplished, because stick is an arch during assembly unit, should carry out supporting for preventing distortion, stick is pieced together and can be lifted after spraying last time finish paint.
2.5.3 A, B two ends that the installation of A, B section is good with assembly unit lift design attitude earlier, an end is fixed on the bearing, and the other end is placed on temporary fixed on the already installed support tower (as shown in Figure 4).
2.5.4 the installation of C section:
After A, B section are installed the adjustment completion, lift installation C section, aloft dock, accomplish the integral body of starting unit and close up (as shown in Figure 5) with A, B section with four cranes.
2.5.5 when docking in the air, the bolt between each section must fasteningly put in place and make it be linked to be integral body, is closed into stable domes at last.If there is error when closed, it is closed that the error completion is eliminated in the even stretch-draw adjustment of application jack, and the parameters to the domes after the closure detects then, just can carry out next procedure after meeting the requirements.
2.6 during greater than 110m, should establish three pylons to span, rack is divided into four sections of A, B, C, D, the method for pressing 2.5.3 is installed to A, B on two pylons (as shown in Figure 6) for two sections earlier.
2.6.1 after A, B section are installed adjustment, the C section is installed, docks (as shown in Figure 7) with the A section aloft with four cranes.
2.6.2 accomplish the butt joint of C section aloft, should check that bolt connects, the planeness compliant requires (as shown in Figure 8).
2.6.3 carry out D section butt joint (as shown in Figure 9) aloft.
2.6.4 after accomplishing aerial butt joint, the connection between the unified inspection section.Bolt must fastening putting in place, by the job specfication requirement, eliminates closure error (shown in figure 10).
Three, be to stablize installation unit with mounted elementary cell, high-altitude overhanging is in bulk.
3.1 accomplish closing up the back and just can getting into the high altitude bulk stage of rack,, must trap close when requiring to encorbelment installation simultaneously to both sides installations of encorbelmenting with crane, bearing is fixed by designing requirement, with the integral rigidity (shown in figure 11) of assurance rack.
3.2 in order to accelerate installation progress; The rack high altitude bulk adopts from net shell middle part and advances to two ends along its length, at first fixes bearing by design attitude during high altitude bulk, and the from coil to coil of from coil to coil installation from the bottom up is closed then; Progressively extend, up to whole completion to two ends.
3.3 each work plane can be with the installation personnel separated into two parts during high altitude bulk; Part assembly unit ground junior unit; Another part carries out the high-altitude to be installed, and erection procedure is: the installation on ground personnel are arranged by drawing earlier, rack to be installed is become junior unit at installation on ground; With crane junior unit is hung the correspondence position of aerial already installed rack, accomplishes being connected of junior unit and rack by the work high above the ground personnel.
3.4 the installation on ground of junior unit
The ground junior unit is also referred to as pyrometric cone, and promptly by a bolted node sphere and four～five junior units that rod member is combined on ground, junior unit is divided into the lower edge junior unit and the junior unit that winds up, should the rod member once mounting is fastening puts in place with all during installation on ground.
3.5 the installation of junior unit
Respectively three tethers are tied on pommel and last (descending) chord member (seeing Figure 13,12), the length of three tethers should be controlled well the tripod of slinging approaching with aerial actual installation position, and deflection angle should be not excessive, to make things convenient for scooping out of high-altitude installation personnel.With crane junior unit is hung the installation site, installation personnel is connected high-strength double-screw bolt after receiving corresponding installation member with the stud balls hole, when rack is installed; High-strength bolt should be tightened and put in place, and the contact surface that does not allow not have the line nut has the observable slit of naked eyes, should be screwed into three～five screw threads earlier when tentatively connecting; Installation situation according to other installation personnels; After treating that whole erection bolts all get into bolt sphere, put in place high-strength bolt is fastening together again, avoid a certain; Two high-strength bolts are tight earlier dead, can cause other high-strength bolts to be difficult to be in place like this.
3.6 large span grid can produce certain amount of deflection because rack is conducted oneself with dignity in the installation at high altitude process; If amount of deflection is crossed affects normal mounting and structural safety; Address this problem general employing and set up support tower, shore, be controlled at mounted rack amount of deflection in the allowed band with jack.
The present invention does not relate to all identical with the prior art prior art that maybe can adopt of part and realizes.
Claims (4)
1. super-span rack shed storage bin construction technology is characterized in that it may further comprise the steps:
At first; According to local meteorological condition; Press least favorable meteorological condition and shed physical parameter, adopt CFD numerical value wind-tunnel computing technique and finite element algorithm to obtain the size of grid node rod member, promptly the bulb diameter of each node is gone up the geometric parameter of the rod member of installation with it; Draw construction drawing, should comprise the numbering of each node and the rod member number of each node on this construction drawing at least;
Secondly, get the raw materials ready according to result of calculation, accomplishing the node rod member in advance on ground is the preliminary connection of little assembly unit, press node serial number and arrange, or the node serial number completion node rod member by construction drawing is the preliminary connection of little assembly unit in work progress;
The 3rd, accomplish the installation of elementary cell, this elementary cell is made up of three sections arch modules at least, and the axial length of every section arch module is between 12-18 rice; Earlier near the installation site, be connected to form corresponding arch module with little assembly unit; One side of wherein two sections arch modules that link to each other with ground is linked to each other with the basis, ground; Another side supports with support tower, and then with tower crane middle arch module is sling, Yi Bian its both sides are linked to each other with the cantilever end of the arch module that has linked to each other with the basis, ground respectively; Thereby accomplish the installation of elementary cell; Equal the arch number of modules and subtract one support tower if the quantity of arch module during more than or equal to four, should be built quantity, so that obtain due support in the middle arch module installation process;
The 4th, carry out high-altitude overhanging with little assembly unit to the shed two ends from the elementary cell both sides and install, encorbelment and must trap close when installing, to guarantee the integral rigidity of rack, install until whole rack and finish;
The 5th, after installing and finish, rack carries out the installation of subsequent panel and internal unit again.
2. super-span rack shed storage bin construction technology according to claim 1 is characterized in that described span is not less than 100 meters, highly is not less than 60 meters.
3. super-span rack shed storage bin construction technology according to claim 1 is characterized in that each shed can be provided with more than one elementary cell along the shed length direction in order to accelerate installation progress.
4. super-span rack shed storage bin construction technology according to claim 1; It is characterized in that said support tower is that bolted tool-type adjustable shelf is so that recycle; The basis of support tower is according to the height and the carrying situation of support; Adopt sleeper and steel plate to make simple and easy cushion cap below 15 meters, 15-30 rice adopts whole steel cushion cap, should adopt concrete bearing platform more than 30 meters; Support tower installs uses the cable wind rope fixation; And carry out anti-skidding fulcrum on the support tower top, guaranteeing provides reliable supporting for rack lower edge ball.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110238425 CN102337785B (en) | 2011-08-19 | 2011-08-19 | Construction process of ultra-large-span net-frame arch-shaped shed type storage silo |
| PCT/CN2012/079828 WO2013026354A1 (en) | 2011-08-19 | 2012-08-08 | Construction process of arch shed storage silo with super-large-span frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110238425 CN102337785B (en) | 2011-08-19 | 2011-08-19 | Construction process of ultra-large-span net-frame arch-shaped shed type storage silo |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102337785A CN102337785A (en) | 2012-02-01 |
| CN102337785B true CN102337785B (en) | 2012-07-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110238425 Active CN102337785B (en) | 2011-08-19 | 2011-08-19 | Construction process of ultra-large-span net-frame arch-shaped shed type storage silo |
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| Country | Link |
|---|---|
| CN (1) | CN102337785B (en) |
| WO (1) | WO2013026354A1 (en) |
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| CN102337785B (en) * | 2011-08-19 | 2012-07-18 | 徐州中煤百甲重钢结构有限公司 | Construction process of ultra-large-span net-frame arch-shaped shed type storage silo |
| CN102660996B (en) * | 2012-05-29 | 2014-05-14 | 广西建工集团第五建筑工程有限责任公司 | Multilevel multi-curve single-layer welding ball steel structure net rack and construction method thereof |
| CN102953558A (en) * | 2012-11-14 | 2013-03-06 | 中冶天工集团有限公司 | Method for splitting basic unit of honeycomb triangular pyramid latticed shell structure |
| CN102953547B (en) * | 2012-11-14 | 2015-10-28 | 中冶天工集团有限公司 | Honeycomb reticulated shell triangular cone unit assembling method |
| CN103452315B (en) * | 2013-08-23 | 2015-09-09 | 中国人民解放军63926部队 | A kind of high-precision section thin-walled concrete hole body structure construction method |
| CN104863362B (en) * | 2015-05-06 | 2017-03-15 | 浙江中南建设集团钢结构有限公司 | The arch barrel lattice shell construction technology that the sliding of arch steel lattice moulding bed is installed is set |
| CN105442854A (en) * | 2015-12-15 | 2016-03-30 | 安徽伟宏钢结构集团股份有限公司 | Construction technology for large-span reticulated shell steel structure roof |
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| CN107165393A (en) * | 2017-06-26 | 2017-09-15 | 西安汾阳钢结构有限公司 | A kind of Large Steel body panel and its installation method |
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| CN111608397A (en) * | 2020-06-09 | 2020-09-01 | 贵州建工集团第四建筑工程有限责任公司 | Grid installation construction method |
| CN112627356A (en) * | 2020-12-22 | 2021-04-09 | 中国二十冶集团有限公司 | Installation method of arched net rack |
| CN113123609B (en) * | 2021-04-20 | 2022-11-04 | 贵州建工集团第一建筑工程有限责任公司 | Method for mounting steel structure dome net rack with two low ends and high middle |
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| CN114482565B (en) * | 2022-03-02 | 2022-09-02 | 中国建筑第二工程局有限公司 | Adjacent type multilayer gymnasium construction method with indoor ice rink |
| CN115949136A (en) * | 2022-10-17 | 2023-04-11 | 徐州中煤百甲重钢科技股份有限公司 | Intermediate starting construction method for arch latticed shell without inhaul cable |
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