CN108252524A - A kind of assembly moulding bed and a kind of hyperbola truss assembling method - Google Patents
A kind of assembly moulding bed and a kind of hyperbola truss assembling method Download PDFInfo
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- CN108252524A CN108252524A CN201711407660.1A CN201711407660A CN108252524A CN 108252524 A CN108252524 A CN 108252524A CN 201711407660 A CN201711407660 A CN 201711407660A CN 108252524 A CN108252524 A CN 108252524A
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- otic placode
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- truss
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The invention discloses a kind of assembled moulding bed and a kind of hyperbola truss assembling methods.The assembly moulding bed includes pedestal, the first column, the first movable otic placode, the first fixation otic placode, the second column, the second movable otic placode and second and fixes otic placode；First column is arranged in parallel in second column on the pedestal；Described first movable otic placode is fixed otic placode with described first and is mounted on first column, and first column sets several the first adjustment holes along its length, and the described first movable otic placode is connect with first column by first adjustment hole；Described second movable otic placode is fixed otic placode with described second and is mounted on second column, and second column sets several the second adjustment holes along its length, and the described second movable otic placode is connect with second column by second adjustment hole.The present invention has versatility and generalization, and to construction site, the assembled of various truss is all worth with very restricted publication of international news and commentary entitled.
Description
Technical field
The present invention relates to building field more particularly to a kind of assembled moulding bed and a kind of assembly sides of hyperboloid large-span truss
Method.
Background technology
Steel construction industry now, all transport to scene, construction site carries out truss after factory carries out integral assembling mostly
Extensive assembled standardized technique is very rare.
Just current existing construction site truss assembling technique is also simple and conventional truss simple assembling, is set up
Assembled moulding bed is also relatively simple, and moulding bed flexible adjustment is not strong, and the surveying setting-out positioning of truss is also by two dimension mostly
Plane drawing, if for the more difficult accurate positioning in curve truss portion point position.
Its design feature of hyperboloid large-span truss is exactly that the flat facade of truss pipe fitting is all tracing pattern, and per truss structure
Length and height it is different, if with conventional moulding bed form and the very difficult spelling for meeting this quasi-truss of line setting technology
Dress.
The roofing configuration design of each building now is increasingly unique and novel, and hyperboloid large-span truss becomes room gradually
A kind of mainstream structure type of face design, it is therefore necessary to invent a kind of meeting for the assembly of construction site hyperboloid truss
The technology of normalizing operation.
Invention content
The present invention provides a kind of assembled moulding bed and a kind of hyperbola truss assembling method, to solve to exist in the prior art
The above problem.
In order to solve the above-mentioned technical problem, the technical scheme is that：A kind of assembly moulding bed, stands including pedestal, first
Column, the first movable otic placode, first fix otic placode, the second column, the second movable otic placode and second and fix otic placode；First column
It is arranged in parallel on the pedestal with second column；Described first movable otic placode fixes otic placode with described first and is mounted on institute
It states on the first column, first column sets several the first adjustment holes, the described first movable otic placode and institute along its length
The first column is stated to connect by first adjustment hole；Described second movable otic placode fixes otic placode mounted on described with described second
On second column, second column sets several the second adjustment holes along its length, the described second movable otic placode with it is described
Second column is connected by second adjustment hole.
Further, first column and the second column are round steel pipe, between first column and the second column
Equipped with crossbeam, one end of the crossbeam is connect with first column, and the other end is connect with second column.
Further, the first adjustment hole equidistantly distributed, the centre-to-centre spacing of two neighboring first adjustment hole are 20cm, institute
The second adjustment hole equidistantly distributed is stated, the centre-to-centre spacing of two neighboring second adjustment hole is 20cm.
Further, the described first movable otic placode includes support plate and sleeve steel pipe, the support plate and the sleeve steel
The outer wall of pipe connects, and through-hole, the described first movable otic placode and the second movable otic placode are opened up on the side wall of the sleeve steel pipe
Structure is identical, and the described first movable otic placode and the second movable otic placode are set on column.
Further, the assembled moulding bed further includes adjustable plate, and the adjustable plate is arranged on the described first movable otic placode, the
One fixes otic placode, the second movable otic placode and second is fixed on otic placode；One end of the adjustable plate is plane, and the other end is cambered surface,
The planar ends of the adjustable plate fix otic placode, the second movable otic placode or the second fixation otic placode with the described first movable otic placode, first
Connection, cambered surface end are used for load truss.
Further, the planar ends of the adjustable plate and most the distance between concave point on cambered surface end are 5-20cm.
The invention also includes a kind of hyperbola truss assembling methods, include the following steps：
Step 1：A three-dimensional coordinate system, each assembled relatively described three-dimensional of point of export hyperbola truss are established in a model
The coordinate value of coordinate system；
Step 2：A two-dimensional coordinate system, the origin of the two-dimensional coordinate system and described three are established at assembled scene
The origin of dimensional coordinate system corresponds to；
Step 3：According to each assembled point relative to the coordinate value of the three-dimensional coordinate system, in the two-dimensional coordinate
The middle assembled moulding bed of arrangement, the assembly moulding bed are assembled moulding bed of the present invention；
Step 4：Several segmented poles of top boom are lifted on assembled on the assembled moulding bed；
Step 5：Several segmented poles of lower boom are lifted on assembled on the assembled moulding bed；
Step 6：Web member is installed between the top boom and lower boom；
Step 7：It treats that the hyperbola truss assembly is completed, collects the geometric dimension and coordinate of hyperbola truss, import model
In, it is compared with theoretical size and coordinate, determines a need for the rod piece assembling scheme of adjustment hyperbola truss.
Further, the origin of the three-dimensional coordinate system is a point in the model one assembled moulding bed, described
The X-axis of three-dimensional coordinate system is set along the width direction of the pedestal of the assembly moulding bed, and the Y-axis of the three-dimensional coordinate system is along the spelling
The length direction setting of the pedestal of moulding bed is filled, the Z axis of the three-dimensional coordinate system is perpendicular to the pedestal of the assembly moulding bed.
Further, the X-axis of the two-dimensional coordinate system, the X-axis of the arrangement of Y-axis and the three-dimensional coordinate system, Y
Axis arrangement is identical.
Further, the docking point between each segmentation of chord member that the assembled point includes the hyperbola truss.
Further, according to the X of each assembled point, Y-coordinate value, the cloth in the two-dimensional coordinate system in the step 2
Put the plan-position of the assembled moulding bed；According to the Z coordinate value of each assembled point, the assembled moulding bed is adjusted for lifting institute
State the height of the lifting surface of hyperboloid truss.
Further, subgrade case is arranged below in the assembled moulding bed.
Assembly moulding bed and hyperbola truss assembling method of the present invention can not only improve the assembly of live hyperbola truss
Efficiency and assembled quality greatly save duration and related measure expense simultaneously, and can be according to different radians and the truss of height to spelling
Dress moulding bed is quickly adjusted, and has versatility and generalization, and to construction site, the assembled of various truss all has very restricted publication of international news and commentary entitled
Value.
Description of the drawings
Fig. 1 is the structure diagram of one specific embodiment of assembled moulding bed of the present invention；
Fig. 2 is the left view of Fig. 1；
Fig. 3 is the vertical view of Fig. 1；
Fig. 4 is the structure diagram of the of the present invention first one specific embodiment of movable otic placode；
Fig. 5 is the vertical view of Fig. 4；
Fig. 6 is the structure diagram of one specific embodiment of adjustable plate of the present invention；
Fig. 7 is the schematic diagram that assembled moulding bed of the present invention is used for assembled hyperbola truss；
Fig. 8 is the level schematic diagram that assembled moulding bed of the present invention is used for assembled hyperbola truss；
Fig. 9 is the vertical schematic diagram that assembled moulding bed of the present invention is used for assembled hyperbola truss；
Figure 10 is the geometric dimension control figure of hyperbola truss of the present invention.
Shown in figure：10- assembly moulding beds, 100- pedestals, 110- braces, the first columns of 210-, the first adjustment holes of 211-,
The second columns of 220-, the second adjustment holes of 221-, 230- crossbeams, the movable otic placodes of 310- first, 311- support plates, 312- sleeve steel
Pipe, 313- through-holes, the movable otic placodes of 320- second, the fixation otic placodes of 410- first, the fixation otic placodes of 420- second, 500- adjustable plates,
600- pins, 700- top booms, 701- top booms assembly point, 800- lower booms, 801- lower booms assembly point, 900- web members.
Specific embodiment
In order to make it easy to understand, the technical characteristic of the present invention is illustrated with reference to embodiment.It should be understood that these embodiments are only used
In illustrating the present invention rather than limit the scope of the invention.
As shown in Figure 1, assembly moulding bed 10 of the present invention, including pedestal 100, first the 210, first movable otic placode of column
310th, first otic placode 410, second the 220, the second movable fixation of otic placode 320 and second otic placode 420 of column are fixed；First column
210 are arranged in parallel in second column 220 on the pedestal 100；Described first movable otic placode 310 is fixed with described first
Otic placode 410 is mounted on first column 210, and first column 210 sets several the first adjustment holes along its length
211, the described first movable otic placode 310 is fixedly connected with first column 210 by first adjustment hole 211；Described
Two movable otic placodes 320 are fixed otic placode 420 with described second and are mounted on second column 220, and second column 220 is along length
Degree direction sets several the second adjustment holes 221, and the described second movable otic placode 320 and second column 220 pass through described the
Two adjustment holes 221 are fixedly connected.
Further, as shown in Fig. 2, being equipped with two braces 110 between first column 210 and pedestal 100.Described two
Root brace 110 is arranged symmetrically relative to column 210, and described 110 one end of any one brace is connect with the first column 210, another
End is connect with pedestal 100.Two braces 110 can improve the structural strength and bearing capacity of the assembled moulding bed 10.Equally, institute
It states and two braces 110 is also set in an identical manner between second column 220 and pedestal 100.
Further, as shown in figure 3, first column, 210 and second column 220 is round steel pipe, described first is vertical
Crossbeam 230 is equipped between 210 and second column 220 of column, one end of the crossbeam 230 is connect with first column 210, another
End is connect with second column 220.Crossbeam 230 further improves the structural strength of the assembled moulding bed 10.
Further, 211 equidistantly distributed of the first adjustment hole, the centre-to-centre spacing of two neighboring first adjustment hole 211 are
20cm, 221 equidistantly distributed of the second adjustment hole, the centre-to-centre spacing of two neighboring second adjustment hole 221 is 20cm.It is uniform in this way
Distribution can facilitate personnel quickly to be adjusted to the height of assembled moulding bed 10 according to the height of different truss, and assembled moulding bed 10
Height adjustable extent is enough big, improves the versatility of assembled moulding bed 10.
Further, with reference to shown in Fig. 4 and Fig. 5, the described first movable otic placode 310 includes support plate 311 and sleeve steel pipe
312, support plate 311 is connected on the outer wall of sleeve steel pipe 312.The side wall of sleeve steel pipe 312 is equipped with through-hole 313.First lives
Dynamic otic placode 310 is by 312 and first column of sleeve steel pipe, 210 clearance fit, mobile first activity otic placode 310 to object height,
Through-hole 313 is made to be overlapped with the first adjustment hole 211 of corresponding height, first movable otic placode 310 is fixed on first using pin 600
On column 210.Described second movable otic placode 320 is identical with the structure and mounting means of the first movable otic placode 310.This kind of structure
The first movable movable otic placode 320 of otic placode 310 and second, has the characteristics of simple in structure, can easily and fast to adjust self-position.
Further, as shown in Figure 1, the assembly moulding bed 10 further includes adjustable plate 500, the adjustable plate 500 is arranged on
Described first movable otic placode 310, first is fixed the movable otic placode 320 and second of otic placode 410, second and is fixed on otic placode 420.Such as Fig. 6
Shown, one end of adjustable plate 500 is plane, and the other end is cambered surface, and the planar ends of the adjustable plate 500 are used for and the first movable ear
Plate 310, first is fixed the movable fixation of otic placode 320 or second otic placode 420 of otic placode 410, second and is connected, and cambered surface end is used to carry purlin
Frame, the cambered surface can facilitate truss to position, and position reliable.Height, that is, planar ends of adjustable plate 500 and the most concave point on cambered surface end
The distance between there are many specification, specification limit is 5-20cm, such as 5cm, 10cm, 15cm, 20cm.Adjustable plate 500 is for more
Mend after four otic placodes just position there are still height tolerance, to adapt to requirement for height of the truss to assembled moulding bed 10.
As shown in fig. 7, the operation principle of assembly moulding bed 10 of the present invention is：It is supported according to required for each truss structure
The position height of point adjusts the first of the assembled moulding bed 10 the movable movable otic placode 320 of otic placode 310 and second, makes two activities
Otic placode and two fixed otic placodes carry out Primary Location to truss；Essence is carried out to the position height of supporting point by adjustable plate 500 again
Determine position；The top boom of truss 700 is lifted on the first movable otic placode 310 and first afterwards to fix on otic placode 410, by lower boom
800, which are lifted on the second movable otic placode 320 and second, fixes on otic placode 420, is required according to assembly, installs top boom 700 and lower edge
Web member 900 between bar 800.
The present invention also provides a kind of hyperbola truss assembling method, which employs of the present invention
Assembled moulding bed 10 is assisted, and as shown in Fig. 8 to Figure 10, which includes the following steps：
Step 1：A three-dimensional coordinate system, each assembled relatively described three-dimensional of point of export hyperbola truss are established in a model
The coordinate value of coordinate system；
Step 2：A two-dimensional coordinate system, the origin of the two-dimensional coordinate system and described three are established at assembled scene
The origin of dimensional coordinate system corresponds to；
Step 3：According to each assembled point relative to the coordinate value of the three-dimensional coordinate system, in the two-dimensional coordinate
The middle assembled moulding bed 10 of arrangement；
Step 4：Several segmental hoistings of top boom 700 are assembled on assembled moulding bed 10；
Step 5：Several segmental hoistings of lower boom 800 are assembled on assembled moulding bed 10；
Step 6：Web member 900 is installed between top boom 700 and lower boom 800；
Step 7：It treats that the hyperbola truss assembly is completed, collects the geometric dimension and coordinate of hyperbola truss, import model
In, it is compared with theoretical size and coordinate, determines a need for the rod piece assembling scheme of adjustment hyperbola truss.
Further, the origin (0,0,0) of the three-dimensional coordinate system is one in the model one assembled moulding bed 10
A, the X-axis of the three-dimensional coordinate system is set along the width direction of the pedestal 100 of the assembly moulding bed 10, the three-dimensional coordinate
The Y-axis of system is set along the length direction of the pedestal 100 of the assembly moulding bed 10, and the Z axis of the three-dimensional coordinate system is perpendicular to the spelling
Fill the pedestal 100 of moulding bed 10.The X-axis of the two-dimensional coordinate system, the X-axis of the arrangement of Y-axis and the three-dimensional coordinate system,
Y-axis arrangement is identical.As shown in Figure 8 and Figure 9, the origin (0,0,0) of the three-dimensional coordinate system in the present embodiment is arranged on
On the pedestal 100 of one assembled moulding bed 10, width direction setting of the X-axis along the pedestal 100 of the assembly moulding bed 10, Y-axis is along the spelling
The length direction setting of the pedestal 100 of moulding bed 10 is filled, Z axis is perpendicular to the pedestal 100 of the assembly moulding bed 10.
Further, the docking point between each segmentation of chord member that the assembled point includes the hyperbola truss, such as Fig. 8 and figure
The each each multiple lower edges between segmentation of multiple top boom assembly points 701 between segmentation and lower boom of top boom shown in 9
Bar assembly point 801.Since transportation lengths limit, long chord member would generally be divided into the shorter chord member of multistage, be spelled in truss
The short chord member docking of multistage is assembled into a complete chord member again during dress.Merging precision between multistage chord member can be to the whole of truss
Body structure precision produces a very large impact, therefore the coordinate value of the position of the docking point between chord member and chord member is the hyperbola truss
One of assembling method emphasis management and control data.
Further, as shown in Figure 8 and Figure 9, in the step 3, according to the X-coordinate value and Y of each assembled point of hyperbola truss
Coordinate value arranges the plan-position of assembled moulding bed 10 in the two-dimensional coordinate system；It is sat according to the Z of each assembled point of hyperbola truss
Scale value come adjust assembled moulding bed 10 for lift the hyperboloid truss lifting surface height, i.e. adjusting activity otic placode and adjusting
The height of plate 500；The point that top boom 700 and lower boom 800 are lifted on assembled moulding bed 10 is the assembled point.With it is traditional from
The method that assembled point position is determined in 2 d plane picture is compared, and in a manner that coordinate value positions assembled point, can greatly promote spelling
The positional precision decorateeed, that is, improve the structure precision of truss.
Further, subgrade case is arranged below in the assembled moulding bed 10, convenient implementation hyperbola truss middle at the construction field (site)
It is assembled.
Further, as shown in Figure 10, the hyperbola truss completed for assembly, collect a points at hyperbola truss both ends, b points,
The coordinate value of c points and d points imports in model and is compared with the theoretical coordinate value of each point, judges actual coordinate value and theoretical coordinate value
Deviation whether in the range of assembled tolerance；Measure e points of hyperbola truss and the distance between f points, import in model with
Whether in the reasonable scope theoretical distance comparison between this 2 points, judge practical assembly size.According to comparing result to this pair
The assembled result of bent truss is judged, and needs the associated rod member or assembling scheme of adjustment hyperbola truss when necessary.
Assembly moulding bed and hyperbola truss assembling method of the present invention can not only improve the assembly of live hyperbola truss
Efficiency and assembled quality greatly save duration and related measure expense, and can be according to different radians and the truss of height to tire simultaneously
Frame is quickly adjusted, and has versatility and generalization, and to construction site, the assembled of various truss is all worth with very restricted publication of international news and commentary entitled.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations.Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that：It still may be used
Either which part or all technical features are equal with modifying to the technical solution recorded in previous embodiment
It replaces, and these modifications or substitutions, the model for various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution
It encloses.
Claims (12)
1. a kind of assembly moulding bed, which is characterized in that fix otic placode, the including pedestal, the first column, the first movable otic placode, first
Two columns, the second movable otic placode and second fix otic placode；First column is arranged in parallel in the bottom with second column
On seat；Described first movable otic placode is fixed otic placode with described first and is mounted on first column, and the first column edge is long
Degree direction sets several the first adjustment holes, and the described first movable otic placode is connected with first column by first adjustment hole
It connects；The second movable otic placode is fixed otic placode with described second and is mounted on second column, and second column is along length
Direction sets several the second adjustment holes, and the described second movable otic placode is connected with second column by second adjustment hole
It connects.
2. assembly moulding bed according to claim 1, which is characterized in that first column and the second column are round steel
Pipe is equipped with crossbeam between first column and the second column, one end of the crossbeam is connect with first column, the other end
It is connect with second column.
3. assembly moulding bed according to claim 1, which is characterized in that the first adjustment hole equidistantly distributed, adjacent two
The centre-to-centre spacing of a first adjustment hole be 20cm, the second adjustment hole equidistantly distributed, the center of two neighboring second adjustment hole
Away from for 20cm.
4. assembly moulding bed according to claim 1, which is characterized in that the described first movable otic placode includes support plate and sleeve
Steel pipe, the support plate are connect with the outer wall of the sleeve steel pipe, open up through-hole on the side wall of the sleeve steel pipe, and described first
Movable otic placode is identical with the described second movable otic placode structure, and the described first movable otic placode and the second movable otic placode are set in column
On.
5. assembly moulding bed according to claim 1, which is characterized in that further include adjustable plate, the adjustable plate is arranged on institute
The first movable otic placode, the first fixation otic placode, the second movable otic placode and second is stated to fix on otic placode；One end of the adjustable plate is flat
Face, the other end are cambered surface, and the planar ends of the adjustable plate fix otic placode, the second movable ear with the described first movable otic placode, first
Plate or the second fixation otic placode connection, cambered surface end is used for load truss.
6. assembly moulding bed according to claim 5, which is characterized in that in the planar ends of the adjustable plate and cambered surface end most
The distance between concave point is 5-20cm.
7. a kind of hyperbola truss assembling method, which is characterized in that include the following steps：
Step 1：A three-dimensional coordinate system, each assembled relatively described three-dimensional coordinate of point of export hyperbola truss are established in a model
The coordinate value of system；
Step 2：A two-dimensional coordinate system, the origin of the two-dimensional coordinate system and the three-dimensional seat are established at assembled scene
The origin of mark system corresponds to；
Step 3：According to each assembled point relative to the coordinate value of the three-dimensional coordinate system, the cloth in the two-dimensional coordinate
Assembled moulding bed is put, the assembly moulding bed is the assembled moulding bed described in any one in claim 1 to 6；
Step 4：Several segmented poles of top boom are lifted on assembled on the assembled moulding bed；
Step 5：Several segmented poles of lower boom are lifted on assembled on the assembled moulding bed；
Step 6：Web member is installed between the top boom and lower boom；
Step 7：It treats that the hyperbola truss assembly is completed, collects the geometric dimension and coordinate of hyperbola truss, import in model, with
Theoretical size and coordinate are compared, and determine a need for the rod piece assembling scheme of adjustment hyperbola truss.
8. hyperbola truss assembling method according to claim 7, which is characterized in that the origin of the three-dimensional coordinate system is
A point in the model on an assembled moulding bed, the width of the X-axis of the three-dimensional coordinate system along the pedestal of the assembly moulding bed
Direction is set, and the Y-axis of the three-dimensional coordinate system is set along the length direction of the pedestal of the assembly moulding bed, the three-dimensional coordinate system
Z axis perpendicular to the assembly moulding bed pedestal.
9. hyperbola truss assembling method according to claim 8, which is characterized in that the X-axis of the two-dimensional coordinate system, Y
The X-axis of the arrangement of axis and the three-dimensional coordinate system, Y-axis arrangement are identical.
10. hyperbola truss assembling method according to claim 7, which is characterized in that the assembled point includes the hyperbolic
Docking point between each segmentation of the chord member of truss.
11. hyperbola truss assembling method according to claim 8, which is characterized in that according to described each in the step 3
The X of assembly point, Y-coordinate value arrange the plan-position of the assembled moulding bed in the two-dimensional coordinate system；According to each assembly
The Z coordinate value of point adjusts the height that the assembled moulding bed is used to lift the lifting surface of the hyperboloid truss.
12. hyperbola truss assembling method according to claim 7, which is characterized in that road is arranged below in the assembly moulding bed
Base case.
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| CN201711407660.1A CN108252524A (en) | 2017-12-22 | 2017-12-22 | A kind of assembly moulding bed and a kind of hyperbola truss assembling method |
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Cited By (5)
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| CN109356391A (en) * | 2018-11-30 | 2019-02-19 | 中国冶集团有限公司 | Moulding bed erection method based on three-dimensional laser scanning technique |
| CN109610289A (en) * | 2018-12-21 | 2019-04-12 | 中冶天工集团有限公司 | A kind of production method of hyperboloid steel box-girder moulding bed |
| CN110424745A (en) * | 2019-08-19 | 2019-11-08 | 中国二十二冶集团有限公司 | The assembled moulding bed of spacial special-shaped steel pipe truss and its assembly, installation method |
| CN111691684A (en) * | 2020-07-08 | 2020-09-22 | 中建七局第二建筑有限公司 | Installation and construction method for whole trusses of large-span pipe truss |
| CN114635548A (en) * | 2022-02-18 | 2022-06-17 | 中铁五局集团建筑工程有限责任公司 | Rapid and accurate assembling device and method for hyperbolic space inverted triangular steel truss |
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