CN102660996B - Multilevel multi-curve single-layer welding ball steel structure net rack and construction method thereof - Google Patents
Multilevel multi-curve single-layer welding ball steel structure net rack and construction method thereof Download PDFInfo
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- CN102660996B CN102660996B CN201210171395.2A CN201210171395A CN102660996B CN 102660996 B CN102660996 B CN 102660996B CN 201210171395 A CN201210171395 A CN 201210171395A CN 102660996 B CN102660996 B CN 102660996B
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Abstract
Disclosed is a multilevel multi-curve single-layer welding ball steel structure net rack. Each layer of the multilevel multi-curve single-layer welding ball steel structure net rack comprises a structurally separated rod and a hollow ball which are connected into a whole in a welded manner; an elastic support positioned on a reinforced concrete vertical column is connected with each layer of the multilevel multi-curve single-layer welding ball steel structure net rack through a net rack supporting part; the elastic support is capable of inching in a certain direction or an optional direction, and the net rack further comprises a cable-supported structure consisting of a cable-supported structure support, a cable-supported ball, a pull cable and a cable-supported ball supporting rod. The net rack is unique in appearance and suitable for serving as a building steel structure support which has high requirements on the appearance of a building, is unique in appearance and needs to display arc shapes, line shapes, shell shapes and staggered levels, and the construction method of the net rack can be used for effectively controlling space coordinates and positional accuracy of components of the net rack, structural stability and structural appearance diversity of the net rack during installation, so that the requirements of a building structure on high, large, difficult and multidirectional change can be met.
Description
Technical field
The present invention relates to the receive construction method of steel structure net rack of a kind of multi-level many curved surfaces individual layer welding spatial steel structure net rack and multi-level many curved surfaces single layer welding, particularly a kind of for large span, many curved surfaces, multi-level many curved surfaces single layer welding multi-level, individual layer shell mould space net rack receive steel structure net rack and construction method thereof.
Background technology
In recent years, along with social development and the raising of living standards of the people, in order to meet the demand of social development and to enrich the people's style life, the construction dynamics to large-scale steel structure venues such as sports palace, theater, exhibition hall, science and technology museum is strengthened in city, these long span building roofings adopt steel screen structure more, particularly adopt the spatial special multi-curved surface net shell of multi-level many curved surfaces, the spatial special multi-curved surface net shell of these multi-level many curved surfaces not only has the features such as novel structure, in meeting safety of structure, rolled steel dosage is less, there is good economy, and all kinds of moulding of long span building roofing are had to unique compliance, but traditional steel structure net rack can not meet arbitrary surface, many levels, profile diversity, and the planning of heavy construction is used space, the requirement of the artistic effect of the stressed and architectural appearance of reasonable distribution steel work all parts, therefore, the construction method of innovating a kind of multi-level many curved surfaces individual layer shell mould space grid structure and this multi-level many curved surfaces individual layer shell mould space net rack is the difficult problem of pendulum in face of builder.
Summary of the invention
The object of the present invention is to provide the multi-level many curved surfaces single layer welding of a kind of one simple in structure, easy construction the steel structure net rack of receiving, the construction method that simultaneously provides this multi-level many curved surfaces single layer welding to receive steel structure net rack, the problems referred to above that exist to solve prior art.
The technical scheme addressing the above problem is: a kind of multi-level many curved surfaces single layer welding steel structure net rack of receiving, comprise receive steel structure net rack and support the receive column of reinforced concrete structure of steel structure net rack of individual layer many curved surfaces single layer welding of many curved surfaces of multilayer individual layer single layer welding, its every many curved surfaces of one deck individual layer single layer welding steel structure net rack of receiving is connected and is formed by welding manner by rod member, the hollow ball part of isolating construction; Being positioned at elastic support on reinforced concrete upright column is connected by net rack supporting rod and many curved surfaces of the individual layer single layer welding steel structure net rack of receiving;
Adopt the steel pipe of different size to make as the receive rod member of steel structure net rack main body of many curved surfaces of individual layer single layer welding;
Be a hollow steel ball as the hollow ball part of rod member and means for jointing rods, each hollow ball part is in the coordinate position difference in space, any direction between each hollow ball part on three-dimensional is connected with at least 2-6 bar rod member, forms individual layer many curved surfaces single layer welding steel structure net rack of receiving;
Described elastic support comprises: bearing ball, floor, steel pipe rest, bolt, bevel gear, spring coil backing plate, spring coil, base plate, rebound, stiffening rib and embedded board;
Described bearing ball is a hollow steel ball, as elastic support by net rack supporting rod and many curved surfaces of the individual layer single layer welding connector that steel structure net rack is connected of receiving;
Described base plate is that the length of side is foursquare steel plate, has 4 installing holes for erection bolt on two diagonal of square:
Described rebound is the square plate that four limits have frame, the long 8%-25% of its side ratio base plate length of side;
Described embedded board is also foursquare steel plate, the length of side long 10%～20% of its side ratio rebound longest edge;
In working order, be fixed on base plate for steel pipe rest and the floor of support carriers ball, bearing ball is fixed on steel pipe rest and floor; Be set with the bolt of spring coil, spring coil backing plate, bevel gear through base plate, be fixed on rebound; Between base plate bottom surface and rebound, be slidably connected; Rebound is arranged on embedded board by stiffening rib, and embedded board is embedded in the column end face of reinforced concrete structure in advance, and its reverse side is preinstalled with shear key and embedded board dowel;
Many curved surfaces of individual layer single layer welding at all levels is received between steel structure net rack, is linked to be integral multi-layered time many curved surfaces single layer welding steel structure net rack of receiving by rod member III.
Its further technical scheme is: described base plate A is upper is the circular hole that diameter and the diameter of bolt are suitable for the installing hole of erection bolt, and described rebound is the square flat board that four limits have frame, its side ratio base plate length of side 8%-12%.
Or: described base plate B upper for the installing hole of erection bolt be diameter with than the circular hole of large 2～5 times of the diameter of bolt, described rebound is the square flat board that four limits have frame, its side ratio base plate length of side 15%-25%.
Or: its base plate C is upper is width and the diameter of bolt of the direction Length Ratio diameter of bolt bar hole of several times greatly quite and on other direction for the installing hole of erection bolt, described rebound is the rectangular flat plate that four limits have frame, one group limit side ratio rebound length of side 8%-12%; Another group is for growing length of side 5%-25% along bar hole limit length of side direction ratio rebound.
Its further technical scheme be: described rack is multi-level many curved surfaces single layer welding of propping up structure with string steel structure net rack of receiving; Each string props up structure and comprises that string props up structural bearings, string props up ball, and drag-line chord props up ball strut;
Described string props up structural bearings and comprises that a string props up structural bearings ball and a cage plate, and described string props up the hollow ball part that structural bearings ball is multi-level many curved surfaces single layer welding a certain position of receiving on steel structure net rack; One end of described cage plate has one to prop up with string the hole that structural bearings ball external diameter is identical, and cage plate is enclosed within string and props up on structural bearings ball and be fixedly connected with it, and the other end of described cage plate is installed drag-line for fixing or anchoring;
Described drag-line is prestressed cable, is made up of multiply steel strand or wire rope;
It is one by connect the medicine ball that two halves medicine ball forms by connecting bolt that described string props up ball, has for wearing drag-line, connects the circular hole of medicine ball in medicine ball, and the trend of this circular hole in string props up ball moves towards identical with drag-line;
Under assembled state, drag-line props up ball through each string, two ends are fixing or be anchored at and be positioned at the receive string of steel structure net rack both sides of multi-level many curved surfaces single layer welding and prop up on the cage plate of structural bearings respectively, one end that two strings that become V font to arrange prop up ball strut is propped up ball with string and is fixedly connected with, and the other end is connected to form the both sides of V font with receive two hollow ball parts of steel structure net rack of multi-level many curved surfaces single layer welding respectively.
Another technical scheme of the present invention is: the receive construction method of steel structure net rack of a kind of multi-level many curved surfaces single layer welding, the method is rod member, hollow ball part, elastic support and the net rack supporting rod of isolating construction that forms multi-level many curved surfaces individual layer welding spatial steel structure net rack to be carried out to individual layer welding at the scene form the receive method of steel structure net rack of multi-level many curved surfaces single layer welding, make every many curved surfaces of one deck individual layer single layer welding steel structure net rack of receiving, it comprises following concrete steps:
A. make many curved surfaces of first individual layer single layer welding steel structure net rack QW1 that receives:
By designing requirement, first choose many curved surfaces of a slice individual layer single layer welding of middle part and receive steel structure net rack QW1 as first making net piece, repeatedly find the locus of each hollow ball part accurately with total powerstation, with hollow ball part temporary supporting bar support hollow ball part, then according to designing requirement, rod member is installed and is welded on each hollow ball part;
B. at least 4 elastic supports that steel structure net rack QW1 below is associated of many curved surfaces of first individual layer single layer welding being received are placed in the column end face of reinforced concrete frame structure:
The fabrication and installation of each elastic support are as follows:
1. the installation of embedded board: fixedly mount in advance shear key and embedded board dowel at embedded board reverse side, after carrying out repeatedly levelling and proofread and correct with total powerstation, then be embedded in above the column of concrete frame structure;
2. the installation of rebound: rebound is fixed on embedded board with stiffening rib; To be bolted on rebound simultaneously;
3. the installation of base-plate: in advance floor and steel pipe rest are fixed on base-plate, then bearing ball is fixedly placed in and forms an individual member on floor and steel pipe rest; Bolt by being set with spring coil, spring coil backing plate, bevel gear on rebound, completes the assembling of elastic support by this member anchoring;
C. by designing requirement, by 8-40 root net rack supporting rod, receive steel structure net rack QW1 and 4 elastic supports of many curved surfaces of first individual layer single layer welding are linked together, wherein, on each elastic support, at least connect two net rack supporting rods, form metastable structure;
D. repeating step A, B, C produce many curved surfaces of the individual layer single layer welding the meeting the requirements steel structure net rack of receiving;
Make many curved surfaces of multi-disc individual layer single layer welding receive steel structure net rack QW2, QW3 at the receive surrounding repeating step A, B, C of steel structure net rack QW1 of many curved surfaces of first individual layer single layer welding ... QW
yand join together by rod member or net rack supporting rod, at the edge of whole rack, by one, with elastic support level connection joint, this many curved surfaces of individual layer single layer welding steel structure net rack of receiving is connected with building frame main body with building fixed point net rack supporting rod connected vertically, the span of above-mentioned y is: y is at least greater than 3 arbitrary integer simultaneously;
In work progress, between rebound and embedded board, put the oil, be flexibly connected; Until whole racks install, dead load removes hollow ball part temporary supporting bar after applying complete correction, by between rebound and embedded board by being welded and fixed;
F. repeating step A, B, C and D can produce many curved surfaces of multilayer individual layer single layer welding steel structure net rack of receiving;
Many curved surfaces of individual layer single layer welding at all levels is received between steel structure net rack, connect into integral multi-layered time many curved surfaces single layer welding steel structure net rack of receiving by rod member.
The further technical scheme of the method is: the receive construction method of steel structure net rack of multi-level many curved surfaces single layer welding that a kind of band props up structure with string, it also comprises that making string props up configuration steps, on integral multi-layered many curved surfaces single layer welding having built up received steel structure net rack, increases and needs the string of quantity to prop up structure;
G. making the step that 1 group of string props up structure is:
1. make string and prop up structural bearings
:according to the stressed needs of design, select multi-level many curved surfaces single layer welding upper same many curved surfaces of individual layer single layer welding of steel structure net rack hollow ball part of a certain position on steel structure net rack of receiving of receiving to prop up structural bearings ball as string, using the thick oval steel plate of 30-60mm as cage plate, one end of described cage plate has one to prop up with string the hole that structural bearings ball external diameter is identical, cage plate is enclosed within string and props up on structural bearings ball and be fixedly connected with it, and the other end of described cage plate is for fixed installation or anchoring drag-line;
2. make drag-line: choose multiply steel strand or wire rope and form;
3. make string and prop up ball: described string props up ball and is made up of upper and lower two halves medicine ball, in this medicine ball, open one for wearing the circular hole of perforation medicine ball of drag-line, the trend of this circular hole in string props up ball with intend wearing drag-line move towards identical, upper and lower two halves medicine ball props up ball connecting bolt 1102 by string and is connected;
4. make string and prop up ball strut: adopt steel pipe field fabrication;
5. assembling forms one group of string and props up structure: drag-line is propped up to ball through each string, two ends are anchored at respectively and are positioned at the receive string of steel structure net rack both sides of multi-level many curved surfaces single layer welding and prop up on the cage plate 102 of structural bearings, two strings that become V font to arrange prop up one end of ball strut and prop up ball with the string on the summit in V font and be fixedly connected with, and the other end is connected to form the both sides of V font with receive two hollow ball parts of steel structure net rack of multi-level many curved surfaces single layer welding respectively;
H. repeat 1.～5. step, make many group strings and prop up structure, form multi-level many curved surfaces single layer welding of propping up structure with string steel structure net rack of receiving.
More than the present invention, receive steel structure net rack and construction method thereof of many curved surfaces of level single layer welding has following beneficial effect:
1. more than the present invention, many curved surfaces of level single layer welding is received rack and single level with compared with curved surface weld grid, has level and happens frequently at the straggly of different spaces, the artistic effect that different curve launches at particular space; Effective and reasonable ground of energy usage space, arbitrarily combines profile; Adapt to the requirement of the building structure such as growing public venue, convention and sports building aspect high, large, difficult and multidirectional variation.
2. more than the present invention, many curved surfaces of level single layer welding rack Space Truss Design of receiving is reasonable, simple in structure, install, easy to adjust, economical and practical: more than the present invention, every many curved surfaces of one deck individual layer single layer welding of the many curved surfaces of level welding spatial steel structure net rack is received steel structure net rack all by the rod member III of isolating construction, hollow ball part II, elastic support I and the net rack supporting rod IV formation that links into an integrated entity, removing rod member III and net rack supporting rod IV must cut at the scene, blanking, outside processing, welding hollowing ball part II can entrust relevant factory to produce according to model, form the also prefabricated or customization in advance of component of elastic support I, assembling at the construction field (site).
3. form receive vitals-elastic support I of Elements of Space Grid Truss of many curved surfaces of level single layer welding more than the present invention rational in infrastructure, according to different local use needs, there is 3 kinds of different base plates and rebound structure, in work progress, between rebound and embedded board, put the oil, be flexibly connected; Until whole racks install, dead load removes hollow ball part temporary supporting bar after applying complete correction, by between rebound and embedded board by being welded and fixed, but be still slidably connected between base plate bottom surface and rebound; Can meet in work progress, the needs that multi-level many curved surfaces welding the spatial steel structure net racks space coordinates of member and precision of position thereof in installation process are adjusted, again can be after the installation of multi-level many curved surface welding spatial steel structure net racks, fine motion as required, to guarantee the stability of space truss structure.
4. many curved surfaces of multilayer single layer welding of propping up structure with string its structural stability of steel structure net rack of receiving is higher, is applicable to the use such as large-scale exhibition hall or the entrance hall of public place of large span, large bay.
5. the receive construction method of steel structure net rack of the multi-level many curved surfaces single layer welding of the present invention can be effectively controlled the diversity of multi-level many curved surfaces welding spatial steel structure net racks space coordinates of member and the precision of position thereof, space truss structure stability, space truss structure profile in installation process, to reach building structure in the requirement aspect high, large, difficult and multidirectional variation.
In construction method of the present invention, adopt following methods to reach above requirement:
1. allocation control points is set and determines, check ball part space coordinates, separate the problem of decision bit difficulty;
2. set up aerial work platform, use the first fixation hollow ball of the hollow ball part temporary supporting bar part being arranged on steel tube frame, then assemble the problem of the method solution installation in position difficulty of rod member;
3. make by burst, first spot welding, then check the construction technology of rear full weld, the problem of solution installation at high altitude, welding fabrication;
4. last according to set Unloading Plan hollow ball part temporary supporting bar, job platform.
6. applied range: more than the present invention, many curved surfaces of level single layer welding steel structure net rack of receiving not only can be used as the steel screen structure roofing of the large-scale steel structure venues such as sports palace, theater, exhibition hall, science and technology museum; Can also be as high to building shape requirement, moulding uniqueness; Need to show the building steel structure support of arc, linear, hull shape, level shape straggly; The for example supporting construction of the outer decorative cover in external wall elevation, artificial hillock or other places.
Below in conjunction with drawings and Examples, the receive technical characterictic of steel structure net rack and construction method thereof of many curved surfaces of level single layer welding more than the present invention is described further.
Accompanying drawing explanation
Fig. 1～Fig. 4: the receive structural representation of steel structure net rack of a kind of multi-level many curved surfaces single layer welding:
Fig. 1: many curved surfaces single layer welding that tool haves three layers steel structure net rack overall structure schematic diagram (front view, concrete pillar does not draw) of receiving,
Fig. 2: curved surface single layer welding more than 3 layers receive steel structure net rack rod member arrange schematic diagram,
Fig. 3: curved surface single layer welding more than 3 layers receive steel structure net rack hollow ball part arrange schematic diagram,
Fig. 4: curved surface single layer welding more than 3 layers receive steel structure net rack elastic support arrange schematic diagram;
Fig. 5～Fig. 6: form the receive elastic support structural representation of steel structure net rack of the present invention multi-level many curved surfaces single layer welding:
Fig. 5: front view, Fig. 6: top view;
Fig. 7-1～Fig. 7-3: elastic support base arrangement schematic diagram:
Fig. 7-1: be applicable to the elastic support base plate that edge connects,
Fig. 7-2～Fig. 7-3: the elastic support base plate connecting in the middle of being applicable to;
Fig. 8-1～Fig. 8-3: the rebound structural representation of elastic support;
Fig. 8-1: be applicable to the elastic support rebound that edge connects,
Fig. 8-2～Fig. 8-3: the elastic support rebound connecting in the middle of being applicable to;
Fig. 9: for the embedded board structural representation (figure expresses the shear key position of intending in reverse side installation) of elastic support is installed;
Figure 10-1～Figure 10-2: the elastic support structural representation that net rack supporting rod is installed;
Figure 10-1: the elastic support that horizontal support bar connects for edge is installed;
Figure 10-2: the elastic support that net rack supporting rod connects for centre is installed;
Figure 11: many curved surfaces of multilayer single layer welding of propping up structure with string steel structure net rack layout schematic diagram of receiving;
Figure 12: string props up the facade structures schematic diagram of structure;
Figure 13-1～Figure 13-2: string props up the seat structure schematic diagram of structure;
Figure 13-1: front view, Figure 13-2: the top view of Figure 13-1;
Figure 14～Figure 16: the string that string props up structure props up spherical structure and annexation schematic diagram:
Figure 14: string props up the positive facade of ball, Figure 15: string props up ball top view, Figure 16: string props up ball side elevation;
Figure 17～Figure 21: the single layer welding steel structure net rack construction method procedure chart of receiving:
Figure 17: unwrapping wire ground network for location is measured in hollow ball part installation site;
Figure 18: hollow ball part is installed network for location;
Figure 19: rod member scheme of installation;
Figure 20: 1 many curved surfaces of individual layer single layer welding that elastic support and concrete pillar be installed steel structure net rack schematic diagram of receiving;
Figure 21: by 3 net QW1, QW2, QW3 that make separately many curved surfaces of individual layer single layer welding of forming steel structure net rack schematic diagram of receiving that is connected.
In figure:
I, I A, I B, I C-elastic support, II-hollow ball part, III-rod member; IV-net rack supporting rod, V-concrete pillar, VI-movable jacking, VII-hollow ball part temporary supporting bar, VIII-steel tube frame, IX--rod member fitting operation platform, X-string props up structural bearings, and XI-string props up ball, XII-drag-line, X III-string props up ball strut;
QW1, QW2, the 1st of QW3-, the 2nd, the 3rd many curved surfaces of individual layer single layer welding steel structure net rack of receiving, XZJG1, XZJG2, XZJG3-rack string props up structure, receive the 1st layer of steel structure net rack of the multi-level many curved surfaces single layer welding of DCDQQWC1-(is abbreviated as: many curves of multilayer stratum reticulare 1, be commonly called as first across), receive the 2nd layer of steel structure net rack of the multi-level many curved surfaces single layer welding of DCDQQWC2-(is abbreviated as: many curves of multilayer stratum reticulare 2, be commonly called as second across), receive the 3rd layer of steel structure net rack of the multi-level many curved surfaces single layer welding of DCDQQWC3-(is abbreviated as: many curves of multilayer stratum reticulare 3, be commonly called as the 3rd across),
10-bearing ball, 11-floor, 12-bevel gear, 13-spring coil backing plate, 14-spring coil, 15-base plate, 16-rebound, 17-stiffening rib, 18-steel pipe rest, 19-bolt, 20-embedded board, 21-shear key; 22-embedded board dowel;
All the other label implications are referring to embodiment.
The specific embodiment
Embodiment mono-: a kind of multi-level many curved surfaces single layer welding steel structure net rack of receiving.
Comprise receive steel structure net rack and support the receive column of reinforced concrete structure of steel structure net rack of individual layer many curved surfaces single layer welding of many curved surfaces of multilayer individual layer single layer welding, a kind of many curved surfaces single layer welding that has 3 levels is received steel structure net rack as shown in Figure 1, and its every many curved surfaces of one deck individual layer single layer welding steel structure net rack of receiving is all linked into an integrated entity and formed by welding manner by rod member III, hollow ball part II, the elastic support I of isolating construction; Being positioned at elastic support I on reinforced concrete upright column is connected by net rack supporting rod IV and many curved surfaces of the individual layer single layer welding steel structure net rack of receiving.
Adopt the steel pipe of different size to make (referring to Fig. 2) as the receive rod member III of steel structure net rack of many curved surfaces single layer welding, the specification of steel pipe is determined according to the requirement of design; Generally, multi-level many curved surfaces single layer welding of a venue receive steel structure net rack use steel pipe specification Φ * L just have: 75.5*3.75 ... ten plurality of specifications such as 325*14.
Described hollow ball part II is a hollow steel ball, as the linkage that between rod member III and rod member III, any direction is connected on three-dimensional, also claim chou point, each hollow ball part II is in the coordinate position difference in space, any direction between each hollow ball part II on three-dimensional is connected with at least 2-6 bar rod member III, forms individual layer many curved surfaces single layer welding steel structure net rack of receiving; The distribution of hollow ball part II is referring to Fig. 3.
Described elastic support I effect is: be connected with hollow ball part II by net rack supporting rod IV (supporting slash), support the receive weight of steel structure net rack of whole many curved surfaces of individual layer single layer welding, elastic support is arranged referring to Fig. 4.
Form the present invention multi-level many curved surfaces single layer welding and receive the concrete structure of elastic support of steel structure net rack as shown in Fig. 5-Fig. 6, comprising: bearing ball 10, steel pipe rest 18, bolt 19, floor 11, bevel gear 12, spring coil backing plate 13, spring coil 14, base plate 15, rebound 16, stiffening rib 17 and embedded board 20;
Described bearing ball is a hollow steel ball 10, and its effect is: as elastic support I by net rack supporting rod IV and many curved surfaces of the individual layer single layer welding connector that steel structure net rack is connected of receiving;
Described steel pipe rest 18 use have steel pipe manufacturing, the floor 11 use steel plates of sufficient intensity and make; Effect is to be fixed on fixed bearing ball on base plate;
Described bolt 19, bevel gear 12, spring coil backing plate 13, spring coil 14 are standard components;
Described base plate 15 is that the length of side is foursquare steel plate, has 4 installing holes for erection bolt 19: (referring to Fig. 7-1) on two diagonal of square; Apply local difference according to bearing, on described base plate 15, have three kinds of different structures (referring to Fig. 7-1～Fig. 7-3) for the installing hole of erection bolt 19:
On rack edge, its bearing ball 10, be connected with at least 1 transverse support bar directly and end bearing (referring to Figure 10-1) that building frame main body is joined for being applied to; Its base plate A upper for the installing hole 151 of erection bolt 19 be the elastic support I A of this kind of structure of circular hole (referring to Fig. 7-1) that diameter is suitable with the diameter of bolt except up and down, all the other direction activity are poor;
For being applied to ball steel structure net rack middle part, on its ball part, be connected with the elastic support (referring to Figure 10-2) of more than 2 net rack supporting rod, there are following two kinds of base plates: base plate B is diameter and circular hole (referring to Fig. 7-2) than large 2～5 times of the diameter of bolt for the installing hole 152 of erection bolt 19, in such cases, elastic support is except up and down, can be in any direction upper slip, is the base plate of comprehensive slip, the elastic support I B that formation can any direction be slided;
Its base plate C is upper for the installing hole 153 of erection bolt 19 be the elastic support I C of width and the diameter of bolt of a direction this kind of structure of bar hole (referring to Fig. 7-3) of large several times of the Length Ratio diameter of bolt quite and on other direction except up and down, can also be in certain direction slip.
Described rebound 16 is flat boards that four limits have frame, and its Area Ratio base plate is large, for the supporting rebound 16 of base plate A be square, its side ratio base plate length of side 8%-12%(is referring to Fig. 6, Fig. 8-1); Being used for the rebound 16 supporting with base plate B is also square, and the long 15%-25%(of its each limit side ratio base plate length of side is referring to Fig. 6, Fig. 8-2); Being used for the rebound 16 supporting with base plate C is rectangle, the side ratio base plate length of side 10% left and right, one group limit; Another group is grown length of side 15%-25%(referring to Fig. 6, Fig. 8-3 along the side ratio base plate C on bar hole limit).
Described embedded board 20 is also foursquare steel plate, the length of side long 10%～20% of its side ratio rebound 16 longest edges;
In working order, be fixed on base plate 15 for steel pipe rest 18 and the floor 11 of support carriers ball 10, bearing ball 10 is fixed on steel pipe rest 18 and floor 11; Be set with the bolt 19 of spring coil 14, spring coil backing plate 13, bevel gear 12 through base plate 15, be fixed on rebound 16; Between base plate 15 bottom surfaces and rebound 16, be slidably connected; Rebound 16 is arranged on embedded board 20, and embedded board 20 is embedded in the column end face of reinforced concrete structure in advance, and its reverse side is preinstalled with shear key 21 and embedded board dowel 22(referring to Fig. 5).
In the embodiment of the present invention, although be all hollow steel ball as the bearing ball 10 that forms elastic support I with forming the receive hollow ball part II of steel structure net rack of many curved surfaces single layer welding, but diameter differs, variable thickness, the bearing ball 10 that forms elastic support I will be born the weight of rack, bearing strength is large, thickness is larger, and concrete specification is determined according to the requirement of design.
Although net rack supporting rod IV and rod member III are all steel pipes, but rod member III is as the receive main body of steel structure net rack of many curved surfaces single layer welding, not load-bearing, and net rack supporting rod IV is the connector of receiving between steel structure net rack as bearing ball 10 and many curved surfaces single layer welding of elastic support I, want load-bearing, therefore all large than the specification of rod member III as caliber, the wall thickness of the steel pipe of net rack supporting rod IV.
As the one conversion of the embodiment of the present invention, the receive number of plies of steel structure net rack of described multi-level many curved surfaces single layer welding can also increase and decrease, and needs determine, generally more than at least 2 layers according to design; The receive curve form of steel structure net rack of described every layer of many curved surfaces of individual layer single layer welding is set as required.
Embodiment bis-: a kind of multi-level many curved surfaces single layer welding of propping up structure with string steel structure net rack of receiving.
For the larger multi-level many curved surfaces single layer welding of the span steel structure net rack of receiving, for guaranteeing the stability of its structure, can prop up structure by increase string and ensure its stability, shown in Figure 11, it is multi-level many curved surfaces single layer welding of propping up structure with 3 groups of strings steel structure net rack of receiving, each string props up structure and comprises that string props up structural bearings X, string props up ball XI, and drag-line XII chord props up ball strut X III (referring to Figure 12);
Described string props up structural bearings X and comprises that a string props up structural bearings ball 101 and a cage plate 102, it is at the receive upper hollow ball part of steel structure net rack of multi-level many curved surfaces single layer welding that described string props up structural bearings ball 101, select (referring to Figure 11) according to designing requirement, two strings that general string on the same group props up structure prop up structural bearings ball 101 and should receive on steel structure net rack in same many curved surfaces of individual layer single layer welding; One end of described cage plate 102 has one to prop up with string the hole that structural bearings ball 101 external diameters are identical, cage plate 102 is enclosed within string and props up on structural bearings ball 101 and be fixedly connected with it, and the other end of described cage plate 102 is useful on the hole 1022(of fixed installation drag-line XII referring to Figure 13-1～Figure 13-2);
Described drag-line XII is prestressed cable, is made up of multiply steel strand or wire rope;
It is one by prop up the medicine ball that ball connecting bolt 1102 connects and composes by string that described string props up ball XI, in medicine ball, have and connect for wearing the circular hole 1101 of drag-line XII, move towards identical (referring to Figure 15, Figure 16) of the trend of this circular hole 1101 in string props up ball XI and drag-line XII;
Under assembled state, drag-line XII is propped up ball XI through each string, two ends are fixing or be anchored at and be positioned at the receive string of steel structure net rack both sides of multi-level many curved surfaces single layer welding and prop up on the cage plate 102 of structural bearings X (referring to Figure 12) respectively, one end that two strings that become V font to arrange prop up ball strut X III is propped up ball XI with string and is fixedly connected with, and the other end is connected to form the both sides (referring to Figure 12, Figure 14) of V font with receive two hollow ball parts of steel structure net rack of multi-level many curved surfaces single layer welding respectively.
In the present embodiment, drag-line XII is to be fixed on cage plate 102 (referring to Figure 13-1～Figure 13-2) by the other end of cage plate 102 for fixedly mounting the hole 1022 of drag-line XII, as the one conversion of the embodiment of the present invention, also can be without perforate on the other end of described cage plate 102, and drag-line XII is directly anchored on cage plate.
Embodiment tri-: the receive construction method of steel structure net rack of a kind of multi-level many curved surfaces single layer welding.
The method is to adopt the rod member III, hollow ball part II, elastic support I and the net rack supporting rod IV that form the isolating construction of multi-level many curved surfaces individual layer welding spatial steel structure net rack described in the embodiment of the present invention one to carry out at the scene individual layer welding to be assembled into the receive method of steel structure net rack of multi-level many curved surfaces single layer welding, for every many curved surfaces of one deck individual layer single layer welding steel structure net rack of receiving, general many curved surfaces of a slice individual layer single layer welding that middle part is first installed steel structure net rack of receiving, then the rack of surrounding is installed; It comprises following concrete steps:
A. make many curved surfaces of first individual layer single layer welding steel structure net rack QW1 that receives:
By designing requirement, many curved surfaces of individual layer single layer welding of doing according to drawing up receive structure and the shape of steel structure net rack, first the receive size of steel structure net rack QW1(QW1 of a slice curved surface single layer welding of choosing middle part covers at least 4 bearings) as first making net piece, repeatedly find each hollow ball part II 1 accurately with total powerstation, II 2, II 3, II 4, the locus (measuring unwrapping wire ground network for location referring to Figure 17 hollow ball part installation site) of II n, by the hollow ball part temporary supporting bar VII support fixation hollow ball part II (referring to Figure 18) being arranged in steel tube frame VIII, again according to designing requirement by rod member III 1, III 2, III 3, III 4 ... III m installs and is welded in each hollow ball part II (referring to Figure 19), the number n of hollow ball part II and the radical m of rod member III are decided according to the actual requirements, be not construed as limiting, therefore in Figure 17, hollow ball part II 1, II 2, II 3, II 4 ... the unified hollow ball part II that is labeled as of II n, rod member III 1, III 2, III 3, III 4 ... the unified rod member III that is labeled as of III m,
B. 4 the elastic support I that steel structure net rack QW1 below is associated of many curved surfaces of first individual layer single layer welding being received are placed in the column V end face of reinforced concrete frame structure:
The fabrication and installation of each elastic support I (referring to Fig. 5, Fig. 6) are as follows:
1. the installation of embedded board: fixedly mount in advance shear key 21 and by perforation plug welding mode embedded board dowel 22 at embedded board 20 reverse side, after carrying out repeatedly levelling and proofread and correct with total powerstation, then be embedded in above the column V of concrete frame structure;
2. the installation of rebound: rebound 16 is fixed on embedded board 20 with stiffening rib 17; Bolt 19 is fixed on rebound 16 by perforation plug welding mode simultaneously;
3. the installation of base-plate: in advance floor 11 and steel pipe rest 18 are fixed on base-plate 15, then bearing ball 10 is fixedly placed in and forms an individual member on floor 11 and steel pipe rest 18; By being set with the bolt 19 of spring coil 14, spring coil backing plate 13, bevel gear 12, this member anchoring, on rebound 16, is completed to the assembling of elastic support I;
C. by designing requirement, by 8-40 root net rack supporting rod IV, receive steel structure net rack QW1 and 4 elastic support I B of many curved surfaces of first individual layer single layer welding are linked together, wherein, on each elastic support I B, at least connect two net rack supporting rod IV, form metastable structure (referring to Figure 20);
D. repeating step A, B, C produce many curved surfaces of the individual layer single layer welding the meeting the requirements steel structure net rack of receiving:
At the receive surrounding repeating step A of steel structure net rack QW1 of many curved surfaces of first individual layer single layer welding, B, C makes many curved surfaces of multi-disc individual layer single layer welding steel structure net rack QW2 that receives, QW3, QWy, and join together by rod member III or net rack supporting rod IV, at the edge of whole rack, by one and elastic support I level connection joint, with building fixed point net rack supporting rod IV connected vertically, this many curved surfaces of individual layer single layer welding steel structure net rack of receiving is connected with building frame main body simultaneously, the quantity number of y is decided according to the actual requirements, generally at least be greater than 3(referring to Figure 21), Figure 21 represents the net QW1 making separately by 3, QW2, QW3 many curved surfaces of the individual layer single layer welding steel structure net rack of receiving forming that is connected.
In work progress, between rebound 16 and embedded board 20, put the oil, be flexibly connected; Until whole racks install, dead load removes hollow ball part temporary supporting bar VII after applying complete correction, by between rebound 16 and embedded board 20 by being welded and fixed;
F. repeating step A, B, C and D can produce many curved surfaces of multilayer individual layer single layer welding steel structure net rack of receiving;
Receive between steel structure net rack for many curved surfaces of individual layer single layer welding at all levels, be linked to be integral multi-layered time many curved surfaces single layer welding steel structure net rack (referring to Fig. 1) of receiving by rod member III.
In the present embodiment, the base plate of elastic support I has 3 kinds, and corresponding rebound also has 3 kinds, and specifically which kind of this selects, and determines according to the position of installing and using of elastic support I, specifically selects mono-[0026] section of narration referring to embodiment, no longer repeats herein.
Embodiment tetra-: the receive construction method of steel structure net rack of a kind of multi-level many curved surfaces single layer welding of propping up structure with string.
Multi-level many curved surfaces single layer welding of propping up structure with string is received the basic step of construction method of steel structure net rack with embodiment tri-, receive after steel structure net rack making integral multi-layered time many curved surfaces single layer welding after A, B, C, D, E, F step, prop up configuration steps by making string again, increase and need the string of quantity to prop up structure thereon
;
G. making the step that 1 group of string props up structure is:
1. make string and prop up structural bearings X: according to the stressed needs of design, select multilayer many curved surfaces single layer welding hollow ball part of an ad-hoc location on steel structure net rack frame of receiving to prop up structural bearings ball 101(referring to Figure 11 as string, for 1 group of string props up structure, the hollow ball part of a described ad-hoc location refers to that two strings that the hollow ball part of two positions on same many curved surfaces of individual layer single layer welding is received steel structure net rack props up structure as 1 group of string prop up structural bearings ball 101), using the thick oval steel plate of 30-60mm as cage plate 102, one end of described cage plate 102 has one to prop up with string the hole that structural bearings ball 101 external diameters are identical, cage plate 102 is enclosed within string and props up on structural bearings ball 101 and be fixedly connected with it, the other end of described cage plate 102 is useful on the hole 1022(of fixed installation drag-line XII referring to Figure 13-1～Figure 13-2),
2. make drag-line XII: choose multiply steel strand or wire rope and form;
3. make string and prop up ball XI: described string props up ball XI and is made up of upper and lower two halves medicine ball, in this medicine ball, open one for wearing the circular hole 1101 of perforation medicine ball of drag-line XII, the trend of this circular hole 1101 in string props up ball XI with intend wearing drag-line XII move towards identical, upper and lower two halves medicine ball props up ball connecting bolt 1102 be connected (referring to Figure 14～Figure 16) by string;
4. make string and prop up ball strut X III: adopt steel pipe field fabrication;
5. assembling forms one group of string and props up structure: drag-line XII is propped up to ball XI through each string, two ends are fixing or be anchored at and be positioned at the receive string of steel structure net rack both sides of multi-level many curved surfaces single layer welding and prop up on the cage plate 102 of structural bearings X respectively, one end that two strings that become V font to arrange prop up ball strut X III is propped up ball XI with the string on the summit in V font and is fixedly connected with, and the other end is connected to form the both sides (referring to Figure 12) of V font with receive two hollow ball parts of steel structure net rack of multi-level many curved surfaces single layer welding respectively;
In the present embodiment, drag-line XII is that the hole 1022 that is useful on fixed installation drag-line XII by the other end of cage plate 102 is fixed on (referring to Figure 13-1～Figure 13-2) on cage plate 102, as the one conversion of the embodiment of the present invention, the other end of described cage plate 102 also can be without perforate, and drag-line XII is directly anchored on cage plate.
H. repeat 1.～5. step, make many group strings and prop up structure, form multi-level many curved surfaces single layer welding of propping up structure with string steel structure net rack (referring to Figure 11) of receiving; Figure 11 indicates multi-level many curved surfaces single layer welding that 3 groups of strings prop up structure steel structure net rack of receiving, and string props up the quantity of structure group to be determined as required.
Claims (7)
1. multi-level many curved surfaces single layer welding steel structure net rack of receiving, comprise receive steel structure net rack and support the receive column of reinforced concrete structure of steel structure net rack of individual layer many curved surfaces single layer welding of many curved surfaces of multilayer individual layer single layer welding, it is characterized in that: its every many curved surfaces of one deck individual layer single layer welding receive steel structure net rack by the rod member (III) of isolating construction, hollow ball part (II) by the welding manner formation that is connected; Being positioned at elastic support (I) on reinforced concrete upright column is connected by net rack supporting rod (IV) and many curved surfaces of the individual layer single layer welding steel structure net rack of receiving;
Adopt the steel pipe of different size to make as the receive rod member (III) of steel structure net rack main body of many curved surfaces of individual layer single layer welding;
Be a hollow steel ball as rod member (III) with the hollow ball part (II) of rod member (III) linkage, each hollow ball part (II) is in the coordinate position difference in space, any direction between each hollow ball part (II) on three-dimensional is connected with at least 2-6 bar rod member (III), forms individual layer many curved surfaces single layer welding steel structure net rack of receiving;
Described elastic support (I) comprising: bearing ball (10), floor (11), steel pipe rest (18), bolt (19), bevel gear (12), spring coil backing plate (13), spring coil (14), base plate (15), rebound (16), stiffening rib (17) and embedded board (20);
Described bearing ball (10) is a hollow steel ball, as elastic support (I) by net rack supporting rod (IV) and many curved surfaces of the individual layer single layer welding connector that steel structure net rack is connected of receiving;
Described base plate (15) is foursquare steel plate, on two diagonal of square, has 4 installing holes for erection bolt (19);
Described rebound (16) is the square plate that four limits have frame, the long 8%-25% of its side ratio base plate length of side;
Described embedded board (20) is also foursquare steel plate, the length of side long 10%～20% of its side ratio rebound (16) longest edge;
In working order, steel pipe rest (18) and floor (11) for support carriers ball (10) are fixed on base plate (15), and bearing ball (10) is fixed on steel pipe rest (18) and floor (11); Be set with the bolt (19) of spring coil (14), spring coil backing plate (13), bevel gear (12) through base plate (15), be fixed on rebound (16); Between base plate (15) bottom surface and rebound (16), be slidably connected; Rebound (16) is arranged on embedded board (20) by stiffening rib (17), embedded board (20) is embedded in the column end face of reinforced concrete structure in advance, and its reverse side is preinstalled with shear key (21) and embedded board dowel (22);
Many curved surfaces of individual layer single layer welding at all levels is received between steel structure net rack, is linked to be integral multi-layered time many curved surfaces single layer welding steel structure net rack of receiving by rod member (III).
2. multi-level many curved surfaces single layer welding according to claim 1 steel structure net rack of receiving, it is characterized in that: the upper installing hole for erection bolt (19) of base plate (15) A (151) is the circular hole that diameter and the diameter of bolt are suitable, described rebound (16) is the square flat board that four limits have frame, its side ratio base plate length of side 8%-12%.
3. multi-level many curved surfaces single layer welding according to claim 1 steel structure net rack of receiving, it is characterized in that: the upper installing hole for erection bolt (19) of base plate (15) B (152) be diameter with than the circular hole of large 2～5 times of the diameter of bolt, described rebound (16) is the square flat board that four limits have frame, its side ratio base plate length of side 15%-25%.
4. multi-level many curved surfaces single layer welding according to claim 1 steel structure net rack of receiving, it is characterized in that: the upper installing hole for erection bolt (19) of base plate (15) C (153) is the bar hole of width and the diameter of bolt of a direction large several times of the Length Ratio diameter of bolt quite and on other direction, described rebound (16) is the rectangular flat plate that four limits have frame, one group limit side ratio rebound length of side 8%-12%; Another group is for growing length of side 15%-25% along bar hole limit length of side direction ratio rebound.
5. multi-level many curved surfaces single layer welding according to claim 1 steel structure net rack of receiving, is characterized in that: described rack is multi-level many curved surfaces single layer welding of propping up structure with string steel structure net rack of receiving; Each string props up structure and comprises that string props up structural bearings (X), string props up ball (XI), and drag-line (XII) chord props up ball strut (X III);
Described string props up structural bearings (X) and comprises that a string props up structural bearings ball (101) and a cage plate (102), and it is the receive hollow ball part of a certain position on steel structure net rack of multi-level many curved surfaces single layer welding that described string props up structural bearings ball (101); One end of described cage plate (102) has one to prop up with string the hole that structural bearings ball (101) external diameter is identical, cage plate (102) is enclosed within string and props up structural bearings ball (101) above and be fixedly connected with it, and the other end of described cage plate (102) is installed drag-line (XII) for fixing or anchoring;
Described drag-line (XII) is prestressed cable, is made up of multiply steel strand or wire rope;
It is one by connect the medicine ball that two halves medicine ball forms by connecting bolt that described string props up ball (XI), in medicine ball, have the circular hole (1101) for wearing drag-line (XII), perforation medicine ball, the trend of this circular hole (1101) in string props up ball (XI) moves towards identical with drag-line (XII);
Under assembled state, drag-line (XII) props up ball (XI) through each string, two ends are fixing or be anchored at and be positioned at the receive string of steel structure net rack both sides of multi-level many curved surfaces single layer welding and prop up on the cage plate (102) of structural bearings (X) respectively, one end that two strings that become V font to arrange prop up ball strut (X III) is propped up ball (XI) with string and is fixedly connected with, and the other end is connected to form the both sides of V font with receive two hollow ball parts of steel structure net rack of multi-level many curved surfaces single layer welding respectively.
6. multi-level many curved surfaces single layer welding construction method of steel structure net rack of receiving, it is characterized in that: the method is to adopt the rod member (III), hollow ball part (II), elastic support (I) and the net rack supporting rod (IV) that form the isolating construction of multi-level many curved surfaces individual layer welding spatial steel structure net rack described in claim 1 to carry out at the scene the receive method of steel structure net rack of the multi-level many curved surfaces single layer welding of individual layer welding formation, make every many curved surfaces of one deck individual layer single layer welding steel structure net rack of receiving, it comprises following concrete steps:
A. make many curved surfaces of first individual layer single layer welding steel structure net rack QW1 that receives:
By designing requirement, first choose many curved surfaces of a slice individual layer single layer welding of middle part and receive steel structure net rack QW1 as first making net piece, repeatedly find the locus of each hollow ball part (II) accurately with total powerstation, with hollow ball part temporary supporting bar (VII) support hollow ball part (II), then according to designing requirement, rod member (III) is installed and is welded on each hollow ball part;
B. at least 4 elastic supports (I) that steel structure net rack QW1 below is associated of many curved surfaces of first individual layer single layer welding being received are placed in the column end face of reinforced concrete frame structure:
The fabrication and installation of each elastic support (I) are as follows:
1. the installation of embedded board: fixedly mount in advance shear key (21) and embedded board dowel (22) at embedded board (20) reverse side, after carrying out repeatedly levelling and proofread and correct with total powerstation, then be embedded in above the column of concrete frame structure;
2. the installation of rebound: rebound (16) is fixed on embedded board (20) with stiffening rib (17); Bolt (19) is fixed on rebound (16) simultaneously;
3. the installation of base-plate: in advance floor (11) and steel pipe rest (18) are fixed on to base-plate (15) above, then bearing ball (10) is fixedly placed in to floor (11) and an individual member of the upper formation of steel pipe rest (18); By the bolt (19) that is set with spring coil (14), spring coil backing plate (13), bevel gear (12), this member anchoring is gone up at rebound (16), completed the assembling of elastic support (I);
C. by designing requirement, by 8-40 root net rack supporting rod (IV), receive steel structure net rack QW1 and 4 elastic supports (I) of many curved surfaces of first individual layer single layer welding are linked together, wherein, on each elastic support (I), at least connect two net rack supporting rods (IV), form metastable structure;
D. repeating step A, B, C produce many curved surfaces of the individual layer single layer welding the meeting the requirements steel structure net rack of receiving;
Make many curved surfaces of multi-disc individual layer single layer welding receive steel structure net rack QW2, QW3 at the receive surrounding repeating step A, B, C of steel structure net rack QW1 of many curved surfaces of first individual layer single layer welding ... QW
yand join together by rod member (III) or net rack supporting rod (IV), at the edge of whole rack, by one, with elastic support (I) level connection joint, this many curved surfaces of individual layer single layer welding steel structure net rack of receiving is connected with building frame main body with building fixed point net rack supporting rod connected vertically (IV), the span of above-mentioned y is: y is at least greater than 3 arbitrary integer simultaneously;
In work progress, between rebound (16) and embedded board (20), put the oil, be flexibly connected; Until whole racks install, dead load removes hollow ball part temporary supporting bar (VII) after applying complete correction, by between rebound (16) and embedded board (20) by being welded and fixed;
F. repeating step A, B, C and D can produce many curved surfaces of multilayer individual layer single layer welding steel structure net rack of receiving;
Many curved surfaces of individual layer single layer welding at all levels is received between steel structure net rack, connect into integral multi-layered time many curved surfaces single layer welding steel structure net rack of receiving by rod member (III).
7. the receive construction method of steel structure net rack of the multi-level many curved surfaces single layer welding described in 6 as requested, is characterized in that: he also comprises that making string props up configuration steps, increases and needs the string of quantity to prop up structure thereon
;
G. making the step that 1 group of string props up structure is:
1. make string and prop up structural bearings (X): according to the stressed needs of design, select multi-level many curved surfaces single layer welding upper same many curved surfaces of individual layer single layer welding of steel structure net rack hollow ball part of a certain position on steel structure net rack of receiving of receiving to prop up structural bearings ball (101) as string, using the thick oval steel plate of 30-60mm as cage plate (102), one end of described cage plate (102) has one to prop up with string the hole that structural bearings ball (101) external diameter is identical, cage plate (102) is enclosed within string and props up structural bearings ball (101) above and be fixedly connected with it, the other end of described cage plate (102) is for fixed installation or anchoring drag-line (XII),
2. make drag-line (XII): choose multiply steel strand or wire rope and form;
3. make string and prop up ball (XI): described string props up ball (XI) and is made up of upper and lower two halves medicine ball, in this medicine ball, open one for wearing the circular hole (1101) of perforation medicine ball of drag-line (XII), what the trend of this circular hole (1101) in string props up ball (XI) and plan were worn drag-line (XII) moves towards identical, and upper and lower two halves medicine ball props up ball connecting bolt (1102) by string and is connected;
4. make string and prop up ball strut (X III): adopt steel pipe field fabrication;
5. assembling forms one group of string and props up structure: drag-line (XII) is propped up to ball (XI) through each string, two ends are anchored at respectively and are positioned at the receive string of steel structure net rack both sides of multi-level many curved surfaces single layer welding and prop up on the cage plate (102) of structural bearings (X), one end that two strings that become V font to arrange prop up ball strut (X III) is propped up ball (XI) with the string on the summit in V font and is fixedly connected with, and the other end is connected to form the both sides of V font with receive two hollow ball parts of steel structure net rack of multi-level many curved surfaces single layer welding respectively;
H. repeat 1.～5. step, make many group strings and prop up structure, form multi-level many curved surfaces single layer welding of propping up structure with string steel structure net rack of receiving.
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