CN109763567A - One kind, which has, stablizes prestressed structural unit body and its application and preparation method thereof - Google Patents
One kind, which has, stablizes prestressed structural unit body and its application and preparation method thereof Download PDFInfo
- Publication number
- CN109763567A CN109763567A CN201910174942.4A CN201910174942A CN109763567A CN 109763567 A CN109763567 A CN 109763567A CN 201910174942 A CN201910174942 A CN 201910174942A CN 109763567 A CN109763567 A CN 109763567A
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- web member
- gusset plate
- pressurization
- single branch
- structural unit
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- 238000002360 preparation method Methods 0.000 title description 2
- 208000010271 Heart Block Diseases 0.000 claims abstract description 85
- 206010003671 Atrioventricular Block Diseases 0.000 claims abstract description 63
- 238000004519 manufacturing process Methods 0.000 claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 21
- 239000010959 steel Substances 0.000 claims description 21
- 238000003466 welding Methods 0.000 claims description 17
- 238000007596 consolidation process Methods 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 5
- 230000003447 ipsilateral effect Effects 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 210000001015 abdomen Anatomy 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 210000001364 upper extremity Anatomy 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- 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
- E04B1/34—Extraordinary structures, e.g. with suspended or cantilever parts supported by masts or tower-like structures enclosing elevators or stairs; Features relating to the elastic stability
Abstract
One kind includes top-bottom chord and web member with prestressed structural unit body is stablized, the both ends of web member are connected with top-bottom chord respectively, node is made of up or down chord member and two web members, having prestressed hinge at least partly at node includes gusset plate, two single branch and pressurization heart block, further includes web member gusset plate；The top boom or lower boom of one Dan Zhiyu node are connected by gusset plate, and another Dan Zhiyu web member is connected by gusset plate, and there are the wider openings inwardly become narrow gradually in outer end between two single branch；The heart block that pressurizes squeezes in the opening, so that the be connected web member singly propped up and up or down chord member generation prestressing force；It further include prestressed holding structure；Web member gusset plate and another web ends are connected, and web member gusset plate passes through the gap formed in pressurization heart block and two single branch and gusset plate is connected, and web member center line and the intersection point of another web member and top boom or lower boom center line cross.This structural unit body improves bearing capacity and saves material.The present invention also provides its application and production methods.
Description
Technical field
The invention belongs to building engineering fields, provide one kind with prestressed structural unit body is stablized, also provide the knot
The application of structure cell cube further also provides the production method of the structural unit body.
Technical background
Truss structure cell cube in the prior art, make it have it is prestressed seldom, and can accomplish structure it is simple,
Scheme easy to make and that prestressing force effect is good is even more not have.In practical applications, as large space even extra space is built
Design it is more and more, have the structural unit body for stablizing prestressing force effect and by its assemble truss, rack or reticulated shell and
Portal frame structure, to realize its prestressing force effect, and forming large space and extra space structure and the demand of enclosed structure needs
New design is wanted to meet.
Summary of the invention
It is an object of the invention to solve problem of the prior art, provide it is a kind of have stablize prestressed structural unit
Body.
It is another object of the present invention to provide the applications of the structural unit body.
It is also another object of the present invention to provide the production methods of the structural unit body.
The object of the present invention is achieved like this:
One kind, which has, stablizes prestressed structural unit body, and for transport and package assembly object, the realization of function is to pass through this
" hinge " applies prestressing force at structural unit body node, it is characterised in that:
The structural unit body includes top boom, lower boom and web member, the both ends of the every web member respectively with the top boom
It is connected with lower boom, the node is made of the top boom or the lower boom and two web members, at least partly institute
State constituted at node there is prestressed " hinge " to be: including gusset plate, two single branch and pressurization heart blocks, have described in hinge
It further include web member gusset plate at node；
Two single branch, one of them described Dan Zhiyu constitutes the top boom of the node or the lower boom passes through institute
It states gusset plate to be connected, another piece web member of Dan Zhiyu is connected also by the gusset plate, and the web member is c series
Web member, there are an opening between two single branch, the outer end of the opening is wider, inwardly becomes narrow gradually；With the top boom or
What the lower boom was connected；
The pressurization heart block is extruded in the opening between two single branch, so that the web member singly propped up that is connected
Prestressing force is generated with the top boom or the lower boom；
It further include the prestressed holding structure, so that the prestressing force of hinge is maintained；
The end of the web member gusset plate and another web member is connected, and the web member is d series web member, the web member gusset plate
The gap and the gusset plate formed on the pressurization heart block and two single branch is connected, so that the bar of the d series web member
The intersection point of center line and c series web member and the center line of the top boom or the lower boom crosses.
Preferably, for two single branch by two and half pairs of list Zhi Zucheng, the single branch of pairs of two described half is opposite
Ground is arranged on the two sides of the gusset plate, constitutes the gap between the single branch of pairs of two described half；The pressurization heart
Block is also to be made of two and half pairs of pressurization heart blocks, opening between two half single branch of the ipsilateral fixation of the gusset plate
The half pressurization heart block of setting one is squeezed on mouth, forms the gap between two half pressurization heart blocks.
Preferably, the prestressed holding structure is consolidating between gusset plate described in single branch or half Dan Zhiyu
Junction structure；Also it could alternatively be, be between two Dan Zhiyu pressurization heart blocks or the half pressurization heart described in half Dan Zhiyu
Consolidation structure between block.It is also possible to that there is above two prestressed holding structure simultaneously.
Preferably, the consolidation structure of gusset plate described in the Dan Zhiyu is welding structure, is saved described in each Dan Zhiyu
There are two the weld seam that is connected between contact plate, one of weld seam is initial weld seam, in the end singly propped up, so that Dan Zhiyu is saved
Contact plate initial connection, another weld seam are that hinge consolidation weld seam constitutes the prestressed holding in the side edge singly propped up
Structure.
For being propped up by the list of two and half list Zhi Zucheng, it is preferable that corresponding side of each half single branch in the gusset plate
There are two the weld seam that is connected on face, one of weld seam is in the end partly singly propped up, so that node described in half Dan Zhiyu
The side initial connection of plate, another weld seam constitute the prestressed holding structure in the side edge partly singly propped up.
The side of the pressurization heart block contacted with two single branch is intilted inclined-plane.
For by the two and half pressurization heart blocks that form of pressurization heart blocks, it is preferable that the half pressurization heart block with described in two
The side of half single branch contact is intilted inclined-plane.
This cellular construction body further includes side upright bar, the both ends of the side upright bar respectively with the top boom and the lower boom phase
Pair end be connected.
Preferably, the wide 30mm in the inner end of the opening, the wide 45mm in outer end.
Preferably, the pressurization heart block or partly the pressurization wide 35mm of heart block most narrow end, the wide 45mm of most wide end, the height of sloping portion
Degree is 40mm.
Further, the structural unit side is of a straight line type depending on can be, or with acclive linear type, or song
Line style.
Preferably, the web member gusset plate can directly be connect with the gusset plate, can also pass through a connecting plate and institute
Gusset plate is stated to be connected.
The hinge can be the semi-rigid hinge of rigid hinge or flexible hinge.
The section of the structural unit body can be I-shaped.
The section of the assembly to be combined by the structural unit body is one of following: square, rectangle, it is trapezoidal, three
It is angular.
The assembly to be combined by the structural unit body can be X-Y two-dimensional structure, or X-Y-Z three-dimensional knot
Structure.
The application of the structural unit body may is that
There is the truss of the large span of prestressing force feature with structural unit body assembling.This structural unit body can be a kind of purlin
Frame, and several truss are formed to the truss of large span.
There is the grid structure of prestressing force feature with structural unit body assembling.Such as rack is formed with two truss.
There is the latticed shell structure of prestressing force feature with structural unit body assembling.Such as with acclive linear type or
This structural unit body of shaped form can form latticed shell structure.
There are the large-scale structures of prestressing force feature with structural unit body assembling.With two dimension or three-dimensional structure, straight line
This structural unit of type or shaped form body can form large-scale structures.
The enclosed structure object with prestressing force feature can be equally assembled with the structural unit body.
It can also can apply prestressed " hinge " and portal-rigid frames combined application.
The production method of above structure cell cube provided by the invention:
Top boom, lower boom, web member and web member gusset plate above-mentioned are processed according to design requirement, web member includes c series web member and d
Serial web member, in addition, also processing single branch, pressurization heart block and the gusset plate above-mentioned that constitute the hinge, by top boom above-mentioned, under
Chord member, c series web member and gusset plate above-mentioned and two single branch connect；The pressurization heart block is placed in two single branch
Between opening on；
Hinge above-mentioned is made to generate pretightning force by applying pressure to the pressurization heart block with external force, and by described prestressed
Structure is kept to keep the prestressing force.
The external force by (by, by, occupy) hinge pressurization heart block to hinge press be this method core.
Specifically it may include steps of:
Step 1: according to design requirement processing top boom, lower boom, web member, side upright bar and web member gusset plate, in addition, also processing structure
At single branch, pressurization heart block and the gusset plate of the hinge；
Wherein,
Two and half Dan Zhiwei pairs of single branch；
The pressurization heart block is two and half pairs of pressurization heart blocks, and the opposite side of two and half pressurization heart blocks is connected by reinforcing bar
Keep constituting the spacing in the gap；
The end of d series web member is fixed on web member gusset plate；
Step 2: processing platform；
The outer boundary detent support of top boom and lower boom is set on platform；
Cushion block is set on platform；
It winds up described in distance on platform and jacking bracket is set at lower boom set distance, implement for jack to be arranged
Pre- tensioning；
Step 3: the assembling of structural unit body；
The top boom and the lower boom are placed on the platform cushion block within detent support；
The side upright bar at structural unit body both ends and top-bottom chord welding are positioned again；
Be connected gusset plate on applying prestressed each node location, and c series web member is fixedly mounted by gusset plate；
Single branch is installed on gusset plate, pairs of half single branch is fixed on two sides of gusset plate, the end partly singly propped up and section
Contact plate welds to form initial weld seam, wider, the opening inwardly become narrow gradually that there are outer ends between opposite half single branch；
Connect together two and half pressurization heart blocks are plugged in respectively in two openings being made of four and half single branch, by flat
The jack drawing being arranged on jacking bracket on platform is set in the cable wire on two and half pressurization heart blocks, and pressurization heart block is allowed to get into
The opening applies prestressing force to hinge；
For four and half list Zhi Jinhang secondary weldings, prestressed holding structure is formed: hinge consolidation weld seam；And/or it pressurizes half
It is welded between heart block and half single branch of its two sides, forms prestressed holding structure.
The reinforcing bar connected between two and half pressurization heart block of cutting, so that two opposite double of single branch and two and half pressurization heart blocks
Between the gap perforation；
The web member gusset plate for being fixed with d series web member is plugged in the gap, the web member gusset plate and the gusset plate are solid
It is connected.
Preferably, in step 1, the half Dan Zhiwei channel steel production, one end of the composition hinge partly singly propped up,
In the range of the 100mm of top, the notch of this section of channel steel is closed with steel plate, closed rectangular section is formed, what is partly singly propped up
The top processes and the half pressurization matched cut sides in the inclined side of heart block, and the cut sides are by steel plate seal welding.
Preferably, in step 2, the cushion block is higher by flat surface 10-20cm.
Preferably, in step 2, it winds up described in distance on platform and described thousand is arranged at lower boom 200cm-300cm
Jin topmast seat.
In step 1, positioning tool is also processed, is a template, there are three edge, two of them edges for tool in the template
For single branch abutment edges, with constitute at the node in prestressed " hinge " two and half singly prop up move towards identical, another
Edge is chord member abutment edges；When half single branch is installed in step 3, which is leaned against to a side of the gusset plate
On, the chord member abutment edges and the top boom or the lower boom are against then by two and half single branch against two of template
Single Zhi Bianyuan is fitted on the side of gusset plate, then implements the welding of initial weld seam.
It is characteristic of the invention that apply prestressing force using " hinge " (the containing rigid hinge, semi-rigid hinge, flexible hinge) for being set to node,
To reach the bearing capacity for improving works, and the purpose of saving steel, the support end of all kinds of hinges must be solid and reliable, absolutely not
It can be displaced.
The present invention to structural unit body apply prestressing force (pressurization), and at node " hinge " consolidate after, the structure list
First body has good stability.The works for being readily transported and assembling, and assemble has prestressing force feature.
Adaptability of the present invention is extensive, and structural unit body can be assembled into the truss compared with large span, also can be by structural unit
Body is assembled into rack, latticed shell structure.Structural unit side is depending on that can be of a straight line type, with acclive linear type or shaped form.Its
Section can present it is I-shaped, may make up after combining section be square, square type, ladder type, triangular form assembly, or combination
The X-Y two-dimensional space of type, or it is in X-Y-Z three-dimensional space, there is preferable flexibility, variability.
Prestressed " hinge " can be applied can be with portal-rigid frames combined application.
Structures and enclosed structure with extra space also can be assembled in structural unit body provided by the invention.
A large amount of engineering practices show that the prestressing force of cable wire can act on when applying prestressing force to a girder system
Lower edge, and it is made to generate compression.This external force intervention can also promote entire girder system to generate corresponding adjustment, i.e. purlin
The upper chord node of frame has microlitre and the appearance of tensile stress；And the adjustment of web member ess-strain.--- this is truss seif-citing rate
Adjustment, to keep the monolithic stability of truss.This phenomenon shows our the appropriateness interventions to girder system, will not destroy truss
The stability of whole system.It is simultaneously also to improve girder system bearing capacity, and the important means to save material.
For the understanding of above-mentioned phenomenon；--- our interventions to the appropriateness of structural unit body must be improved
Its bearing capacity, the important means to save material.
Therefore obtaining one has the structural unit body for stablizing prestressing force effect, and performance can apply prestressed " hinge " and tie
Effect in the combination of structure object has important actual benefit.
Below by drawings and examples, the present invention will be further described.
Detailed description of the invention
Fig. 1 is the overall structure diagram of structural unit body provided by the invention.
Fig. 1 a is the overall structure diagram of another structural unit body provided by the invention.
Fig. 2 is the portion the A partial enlarged view in Fig. 1 and Fig. 1 a, shows d series web member and gusset plate and lower boom and c series
The schematic diagram of relationship and welded connecting between web member and its gusset plate.
Fig. 3 is the structural schematic diagram that cuts with scissors in Fig. 2, show it is of the invention apply prestressed hinge composition and its with structure list
The connection structure of c series web member and lower boom in first body.
Fig. 4 is the A-A cross-sectional view of Fig. 2, the gap that display web member gusset plate passes through single branch and pressurization heart block is formed again with section
The structure of contact plate connection.
Fig. 5 is the overlooking structure diagram of pressurization heart block.
Fig. 5 a is the overlooking structure diagram of the pressurization heart block with tensioning cable wire detent.
Fig. 6 is the side structure schematic view of pressurization heart block.
Specific embodiment
Fig. 1 to Fig. 6 can be found in Preliminary study of the invention, structural unit body includes top boom 1, lower boom 2 and web member
3, the both ends of every web member are connected with top boom 1 and lower boom 2 respectively, on one node, have the end of two web members 3 upper
It converges, i.e., is made of top boom 1 or lower boom 2 and two institute's web members 3 on chord member or lower boom, further include side upright bar 0, side upright bar
The end opposite with top boom 1 and lower boom 2 is connected respectively at 0 both ends.
It is illustrated in figure 2 a knot with the hinge at prestressed lower-chord panel point in structural unit body provided by the invention
Structure.It further include web member gusset plate 6 including gusset plate 4, two single branch and pressurization heart block 5；
Two single branch, one of list branch 7 and the lower boom 2 of configuration node are connected by gusset plate 4, another singly props up 8 and one
Root web member 31 is connected also by gusset plate 4, is c series web member 31 by the web member that gusset plate 4 connects lower boom 2.Two single branch
Between there are an opening, the outer end of the opening is wider, inwardly become narrow gradually, specific to the present embodiment, the wide 30mm in the inner end of opening,
The wide 45mm in outer end.
Single branch 7 and single branch 8 above-mentioned are by two and half pairs of list Zhi Zucheng, as shown in figure 4, two and half pairs of single branch
A is oppositely disposed on the two sides of gusset plate 4, constitutes gap B between pairs of two and half single branch a；The width of gap B should be big
In the thickness of web member gusset plate 6.
As shown in figure 3, pressurization heart block 5 is extruded in the opening between two single branch, so that the c series abdomen for single branch 7 that is connected
Bar 31 and lower boom 2 generate prestressing force, and pressurization heart block 5 and two single branch are connected.
Pressurization heart block 5 is also possible to be made of two and half pairs of pressurization heart block 5b, as shown in figure 5, ipsilateral in gusset plate 4
Seam is formed between setting one and half pressurization heart block 5b, two and half pressurization heart block 5b in opening between the single branch a of fixed two and half
Gap B1.Gap B1 width should be greater than the thickness of web member gusset plate 6.
The end of web member gusset plate 6 and web member 32 is connected, and is d series web member 32, abdomen with the web member that web member gusset plate is connected
The gap B and gusset plate 4 that gap B1 and two and half list branch a of the bar node plate 6 across two and half pressurization heart block 5b is formed are solid
Even, in an embodiment as illustrated in figure 2, web member gusset plate 6 is connected by a connecting plate 6a and gusset plate 4, and e.g. welding connects
It connects.
The side of half pressurization heart block 5b contacted with two and half list branch a is intilted inclined-plane.
In one embodiment, the two and half list branch 5b singly propped up in pairs are constituted for channel steel production, described in the composition partly singly propped up
One end of hinge closes the notch of this section of channel steel with steel plate in the range of apart from top 100mm, forms closed rectangular section,
The top partly singly propped up process with the half pressurization matched cut sides in the inclined side of heart block, the cut sides are by steel plate Seal welding
It connects.
Half pressurization heart block a is pressed into the opening, is pressed down against along the plate face of the sealing steel plate in cut sides, thus applies
Prestressing force.
Prestressing force being imposed to the hinge being located at the node that winds up from can be seen that in Fig. 1 a, can make to wind up to generate tensile stress；From figure
It can be seen that imposing prestressing force to the hinge being located at lower-chord panel point in 1 and Fig. 1 a, lower edge can be made to generate compression.Therefore, by tying
It is prestressed to will receive structural unit body first after works (such as grid structure) the receiving external loads of structure cell cube combination
It resists, after only exhausting this prestressing force, the material (steel) of composed structure object just bears the effect from external loads.Structure
Cell cube when bearing external loads be more than affect the variation winded up with lower edge power, can similarly promote c series web member and
The stress of c ' series web member generates the change of sign.
But it also should be seen that b, b the ' series and lower-chord panel point for keeping d series web member, d ' series web member and upper chord node
A, the direct channel of a ' serial " power " is most important, is the key that guarantee that structural unit body works normally.In other words, d series abdomen
The gap that bar or the web member gusset plate of the web member of d ' series connection pass through in single branch and pressurization heart block is connect with gusset plate 4, is very
Crucial.
D series web member as being for the node cut with scissors with prestressing force with the serial web member of d ', but due to being from structure
The center of cell cube is symmetrically arranged hinge to both sides, and the inclined direction for connecting the web member of web member gusset plate is different, so so add
With difference.C series web member has similar meaning with the serial web member of c '.
Fig. 1 to Fig. 6 mainly indicates to apply prestressing force to " hinge " of structural unit body node part, and exists after consolidating pre-
Stress effect, and the composition and the prestressed method of application of " hinge ".
This structural unit body the production method is as follows:
As shown in Figures 1 to 6, the general requirement for making structural unit body is:
1, unified processing platform is established using factory's formula standardized production；
2, processing and making process strictly presses process flow organizing and implementing, prevents that buckling deformation occurs in the production process.
Production processing:
There are also 6 all parts of web member gusset plate are equal for step 1, the top boom 1 of structural unit body, lower boom 2, web member 3 and side upright bar 0
Complete, cut with scissors in processing factory " half list branch a of processing request made with No. 5 channel steels, within the scope of the 100mm on the top partly singly propped up
It is rectangular channel steel should to be closed welding.It is required that half-and-half the notch of list Zhi Dingduan is accurate, and with steel plate seal welding.
Step 2 builds structural unit body processing platform in the outdoor of processing factory,
Steel platform should be preferentially selected, platform is equipped with top boom, and the outer boundary detent of lower boom is also served as and answered in advance " hinge " application
The support of displacement is resisted when power.
Cushion block is set on platform, which is higher by flat surface 10-20cm；
It is set at the 200cm-300cm except lower boom (for the pre-stressed state reservation operations space of consolidation " hinge ") winding up
It sets jack and implements pretensioned support, implement pre- tensioning for jack to be arranged.
The rod piece assembling of step 3, structural unit body
Should strict control " hinge " position (axis offset be less than 0.5mm), the Dan Zhiyu chord member of strict control " hinge ", web member
Angle.
(1) first top boom 1 and lower boom 2 are placed on the platform cushion block within detent, are higher than flat surface 10cm-
20cm is the consolidation for convenience to hinge, then the side upright bar 0 at structural unit body both ends and top boom 1 and lower boom 2 are determined
Position, reinforces the gusset plate 4 that is connected on each node location after welding, and c series web member is fixedly mounted by gusset plate 4, that is, pacifies
Fill diagonal web member c 1, c 2, c 3 and c ' 1, c ' 2, c ' 3.Structural unit body is in weak steady system at this time.
It is production hinge with that:
Single branch is installed on gusset plate 4, half pairs of list branch a is fixed on two sides of gusset plate 4, the end of half single branch a
It welds to form initial weld seam e with gusset plate, it is wider that there are outer ends between two and half ipsilateral single branch a of gusset plate 4, inwardly gradually
The opening to narrow；After two list Zhi Zuhe, the wide 30mm of the lower edge of opening, the wide 45mm of upper limb.Depending on different design requirements, it is
Guarantee angle and the accurate positioning of hinge, should be a mould using the amplification template that 1:1 is cut with scissors as positioning tool (not shown)
Plate, tool has two and half list in prestressed " hinge " at two edges therein and configuration node there are three edge in the template
Moving towards for branch a is identical, another edge is chord member abutment edges；In half list branch a of installation, which is leaned against into gusset plate 4
On one side, the chord member abutment edges and the top boom or the lower boom are against then by two and half list branch a against mould
Two list Zhi Bianyuan of plate are fitted on the side of gusset plate 4, then implement the welding of initial weld seam e.By using positioning work
Tool, so that it may which each half list branch a is accurately positioned in ensuring to cut with scissors.Fixed weld of half list branch a should just saved with initial weld seam e later
Initial weld seam e should ensure that in contact plate 4 does not shift when applying prestressing force to hinge, when necessary, other than initial weld seam e, can also increase
Bolt is added to be positioned.
Connect together two and half pressurization heart block 5b are plugged in respectively in two openings being made of four and half list branch a,
The cable wires on two and half pressurization heart blocks are set in by the jack that is arranged on the jacking bracket on platform drawing, allow pressurization
Heart block 5 gets into the opening and applies prestressing force to hinge.In order to which cable wire can be stablized on pressurization heart block, as shown in Figure 5 a,
The detent g of tensioning cable wire is set on pressurization heart block 5.It is of course also possible to apply pressure to pressurization heart block using other any methods.
(2) prestressing force is applied to node, it is as shown in Figure 1a, right usually since the node of the centre of structural unit body
" hinge " of a 1, a ' 1 at lower edge apply prestressing force, and by solid with gusset plate 4 in single side edge propped up or partly singly propped up
Hinge consolidation weld seam e1 even gives to install d series diagonal web member d ' 1 after consolidation, and 1 node of b is connect with 1 node of a ', is aligned later
" hinge " at upper chord node b 1 applies prestressing force and gives to consolidate, and installs d series diagonal web member d 1 later, connects 1 section of a
Point and the connection at 1 node of b, be enhanced can be to 2 node of a for the stability of structural unit body at this time, 2 node of a ', 2 section of b
Point, " hinge " at 2 node of b ' apply prestressing force and consolidate simultaneously, install d series web member, the diagonal web member of d 2 and d ' 2 again later
Again to 3 node of b and 3 node of a after (being located at the connection of a 2 and b 2 and the connection of 2 node of a ' and 2 node of b ')；B ' 3
Node applies prestressing force with the hinge at 3 node of a ' and is consolidated, and then installs d series web member, that is, d 3 and 3 diagonal web member of d ', point
It Wei Yu not 3 node of a and the connection of 3 node of b and the connection of 3 node of a ' and 3 node of b '.So far stable having is answered in advance
The structural unit body processing and fabricating of power feature is completed.
Prestressing force is only arranged on lower-chord panel point in Fig. 1 to cut with scissors, an engineer application example is shown.And Fig. 1 a is then pair
In applying a prestressed functional expression on structural unit body.
When applying prestressing force and consolidation to " hinge ", it has to be noted that:
(1) it first is put into pressurization heart block between two single branch of hinge, is done between two and half pressurization heart blocks with 20 steel bar end h of Φ
Connection, to prevent the pressurization displacement of heart block 5 from influencing gap B, and then the web member gusset plate 6 for influencing the connection of d series web member passes through.It is applying
After plus-pressure and composition prestressing force Conservation measures, steel bar end h can be cut off, so that gap is unobstructed, be convenient for subsequent d series abdomen
Web member gusset plate on bar passes through gap and connect with gusset plate.
Being equipped at the top of pressurization heart block 5 prevents the detent g(of cable wire movement as shown in Figure 5 a).Tensioning cable wire by pair
Pressure is simultaneously transferred to hinge by the pressure of pressurization heart block.Consolidation welding can be carried out after the displacement that the deformation of hinge reaches design requirement,
Apply hinge consolidation weld seam f, prevents prestressed loss, while 20 reinforcing bar of gas cutting Φ is passed through with sharp d number of Node plate.
(2) it completes diagonal web member gusset plate (d 1, d 2, d 3, d ' 1, d ' 2, d ' 3) and connect (weldering with the gusset plate of " hinge "
Connect), see Fig. 5, so far the structural unit body with stability prestressing force feature completes.
Claims (10)
1. one kind, which has, stablizes prestressed structural unit body, for transport and package assembly object, the realization of function is to pass through
" hinge " applies prestressing force at this structural unit body node, it is characterised in that:
The structural unit body includes top boom, lower boom and web member, the both ends of the every web member respectively with the top boom
It is connected with lower boom, the node is made of the top boom or the lower boom and two web members, at least partly institute
State constituted at node there is prestressed hinge to be: including gusset plate, two single branch and pressurization heart blocks, in the section with hinge
It further include web member gusset plate at point；
Two single branch, one of them described Dan Zhiyu constitutes the top boom of the node or the lower boom passes through institute
It states gusset plate to be connected, another piece web member of Dan Zhiyu is connected also by the gusset plate, and the web member is c series
Web member, there are an opening between two single branch, the outer end of the opening is wider, inwardly becomes narrow gradually；The pressurization heart block squeezes
It is pressed in the opening between two single branch, so that the web member and the top boom or described singly propped up that be connected
Lower boom generates prestressing force；
It further include the prestressed holding structure, so that the prestressing force of hinge is maintained；
The end of the web member gusset plate and another web member is connected, and the web member is d series web member, the web member gusset plate
The gap and the gusset plate formed on the pressurization heart block and two single branch is connected, so that the bar of the d series web member
The intersection point of center line and c series web member and the center line of the top boom or the lower boom crosses.
2. structural unit body according to claim 1, it is characterised in that: two single branch are single by pairs of two and half
Zhi Zucheng, the single branch of pairs of two described half are oppositely disposed on the two sides of the gusset plate, and pairs of two described half
The gap is constituted between single branch；
The pressurization heart block is also to be made of two and half pairs of pressurization heart blocks, described in two of the ipsilateral fixation of the gusset plate
The half pressurization heart block of setting one is squeezed in opening between half single branch, forms the seam between two half pressurization heart blocks
Gap.
3. structural unit body according to claim 1 or 2, it is characterised in that: the prestressed holding structure is described
Consolidation structure between gusset plate described in single branch or half Dan Zhiyu；It and/or is between two Dan Zhiyu pressurization heart blocks
Or the consolidation structure between half pressurization heart block described in half Dan Zhiyu；And/or
The web member gusset plate is connected by a connecting plate and the gusset plate.
4. structural unit body according to claim 3, it is characterised in that: node described in single branch or half Dan Zhiyu
The consolidation structure of plate is welding structure, there are two the weld seam that is connected between gusset plate described in each single branch or half Dan Zhiyu,
In weld seam be initial weld seam, in single branch or the end partly singly propped up, so that single branch or half Dan Zhiyu gusset plate
Initial connection, another weld seam are that hinge consolidation weld seam is constituted described prestressed in single side edge propped up or partly singly propped up
Keep structure.
5. according to claim 1 to structural unit body described in one of 4, it is characterised in that: the pressurization heart block or the half pressurization heart
The side of block contacted with two single branch or half single branch is intilted inclined-plane；And/or
It further include side upright bar, the end opposite with the top boom and the lower boom is connected respectively at the both ends of the side upright bar；With/
Or,
The wide 30mm in the inner end of the opening, the wide 45mm in outer end；And/or
The pressurization heart block or the half pressurization wide 35mm of heart block most narrow end, the wide 45mm of most wide end, the height of sloping portion is 40mm；
And/or
The structural unit side is depending on being of a straight line type, or with acclive linear type or shaped form；And/or
The hinge is the semi-rigid hinge of rigid hinge or flexible hinge；And/or
The section of the structural unit body is I-shaped；And/or
The section of the assembly to be combined by the structural unit body is one of following: square, rectangle, trapezoidal, triangle
And/or
It is X-Y two-dimensional structure by the assembly that the structural unit body combines, or is X-Y-Z three-dimensional structure.
6. the application of structural unit body according to one of claims 1 to 5, it is characterised in that:
There is the truss of the large span of prestressing force feature with structural unit body assembling；Alternatively,
There is the grid structure of prestressing force feature with structural unit body assembling；Alternatively,
There is the latticed shell structure of prestressing force feature with structural unit body assembling；Alternatively,
There are the large-scale structures of prestressing force feature with structural unit body assembling；Alternatively,
There is the enclosed structure object of prestressing force feature with structural unit body assembling.
7. the production method of structural unit body according to one of claims 1 to 5, it is characterised in that:
Top boom, lower boom, web member and web member gusset plate above-mentioned are processed according to design requirement, web member includes c series web member and d
Serial web member, in addition, also processing single branch, pressurization heart block and the gusset plate above-mentioned that constitute the hinge, by top boom above-mentioned, under
Chord member, web member and gusset plate above-mentioned and two single branch connect；The pressurization heart block is placed between two single branch
Opening on；
Make hinge above-mentioned generate prestressing force by applying pressure to the pressurization heart block, and passes through the prestressed holding knot
Structure keeps the prestressing force.
8. production method according to claim 7, characterized by the following steps:
Step 1: according to design requirement processing top boom, lower boom, web member, side upright bar and web member gusset plate, in addition, also processing structure
At single branch, pressurization heart block and the gusset plate of the hinge；
Wherein,
Two and half Dan Zhiwei pairs of single branch；
The pressurization heart block is two and half pairs of pressurization heart blocks, and the opposite side of two and half pressurization heart blocks is connected by reinforcing bar,
And keep constituting the spacing in the gap；
The end of d series web member is fixed on web member gusset plate；
Step 2: processing platform；
The outer boundary detent support of top boom and lower boom is set on platform；
Cushion block is set on platform,
It winds up described in distance on platform and jacking bracket is set at lower boom set distance, implement for jack to be arranged
Pre- tensioning；
Step 3: the assembling of structural unit body；
The top boom and the lower boom are placed on the platform cushion block within detent support；
The side upright bar at structural unit body both ends and top-bottom chord welding are positioned again；
Be connected gusset plate on applying prestressed each node location, and c series web member is fixedly mounted by gusset plate；
Single branch is installed on gusset plate, pairs of half single branch is fixed on two sides of gusset plate, the end partly singly propped up and section
Contact plate welds to form initial weld seam, wider, the opening inwardly become narrow gradually that there are outer ends between opposite half single branch；
Connect together two and half pressurization heart blocks are plugged in respectively in two openings being made of four and half single branch, by flat
The jack drawing being arranged on jacking bracket on platform is set in the cable wire on two and half pressurization heart blocks, and pressurization heart block is allowed to get into
The opening applies prestressing force to hinge；
For four and half list Zhi Jinhang secondary weldings, prestressed holding structure is formed: hinge consolidation weld seam；And/or it pressurizes half
It is welded between heart block and half single branch of its two sides, forms prestressed holding structure；
The reinforcing bar connected between two and half pressurization heart block of cutting, so that between two opposite double of single branch and two and half pressurization heart blocks
The gap perforation；
The web member gusset plate for being fixed with d series web member is plugged in the gap, the web member gusset plate and the gusset plate are solid
It is connected.
9. the production method of structural unit body according to claim 8, it is characterised in that:
In step 1, the half Dan Zhiwei channel steel production, one end of the composition hinge partly singly propped up, apart from top
In the range of 100mm, the notch of this section of channel steel is closed with steel plate, forms closed rectangular section, is added on the top partly singly propped up
Work is out with the half pressurization matched cut sides in the inclined side of heart block, and the cut sides are by steel plate seal welding；And/or
In step 2, the cushion block is higher by flat surface 10-20cm；And/or
It winds up described in distance on platform and the jacking bracket is set at lower boom 200cm-300cm.
10. the production method of structural unit body according to one of claim 8 to 9, it is characterised in that:
In step 1, positioning tool is also processed, is a template, for tool there are three edge, two of them edge is single in the template
Branch abutment edges, with constitute at the node in prestressed " hinge " two and half singly prop up move towards identical, another edge
For chord member abutment edges；When half single branch is installed in step 3, which is leaned against on a side of the gusset plate,
The chord member abutment edges and the top boom or the lower boom are against then by two single branch of two and half single branch against templates
Edge is fitted on the side of gusset plate, then implements the welding of initial weld seam.
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|---|---|---|---|
| CN2018102028508 | 2018-03-13 | ||
| CN201810202850.8A CN109057035A (en) | 2018-03-13 | 2018-03-13 | Structural unit body is set to obtain the scheme for stablizing prestressing force in order to transport and assemble |
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| CN109763567A true CN109763567A (en) | 2019-05-17 |
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| CN201810202850.8A Pending CN109057035A (en) | 2018-03-13 | 2018-03-13 | Structural unit body is set to obtain the scheme for stablizing prestressing force in order to transport and assemble |
| CN201920292800.3U Active CN209799011U (en) | 2018-03-13 | 2019-03-08 | Structural unit body with stable prestress |
| CN201910174942.4A Pending CN109763567A (en) | 2018-03-13 | 2019-03-08 | One kind, which has, stablizes prestressed structural unit body and its application and preparation method thereof |
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| CN201810202850.8A Pending CN109057035A (en) | 2018-03-13 | 2018-03-13 | Structural unit body is set to obtain the scheme for stablizing prestressing force in order to transport and assemble |
| CN201920292800.3U Active CN209799011U (en) | 2018-03-13 | 2019-03-08 | Structural unit body with stable prestress |
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| CN109057035A (en) * | 2018-03-13 | 2018-12-21 | 王维奇 | Structural unit body is set to obtain the scheme for stablizing prestressing force in order to transport and assemble |
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| CN209799011U (en) | 2019-12-17 |
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