CN209163212U - A kind of recessed fish-bellied type combination light truss structure of large span - Google Patents
A kind of recessed fish-bellied type combination light truss structure of large span Download PDFInfo
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- CN209163212U CN209163212U CN201821891266.XU CN201821891266U CN209163212U CN 209163212 U CN209163212 U CN 209163212U CN 201821891266 U CN201821891266 U CN 201821891266U CN 209163212 U CN209163212 U CN 209163212U
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Abstract
The utility model relates to a kind of recessed fish-bellied types of large span to combine light truss structure, for special-shaped large-span truss, including positioning lattice column, arch main couple, moulding main couple, moulding jack truss, overhang main couple and the truss connecting rod between truss；Positioning lattice column is tube column formula, and lower edge is arcuately main couple, can be thick and heavy with multiple formation both ends in parallel, intermediate frivolous big area roof, and structure lenticular truss small in ends more broad in the middle is more firm；According to size, the length of jack truss both ends English truss and intermediate monochord bar, the recessed fish belly moulding of whole truss structure is controlled；Main couple is shared between every truss structure and links bar interconnection, and entire roof truss is made to form reasonable stress entirety handsome in appearance.The close but moulding with existing lenticular truss structure links bar for jack truss interconnection by upper lower edge, each primary and secondary truss is made to form complete one on the contrary, on the basis of sharing main couple.
Description
Technical field
The utility model relates to large-scale roof truss technical fields, and in particular to a kind of light-duty purlin of recessed fish-bellied type combination of large span
Frame structure.
Background technique
As domestic economy continues to develop, overline bridge, vestibule, large-scale museum are continued to bring out, the large span roof truss of different shapes
It emerges one after another；The selection of structure type and structure design whether the proper cost for directly determining building structure, rigidity and stabilization
Property, also it is related to the degree of safety and comfort of the pedestrian of its carrying.Previous lenticular truss, moulding is more single, in truss
Portion is more heavy, and when being formed simultaneously large span roof truss, steel using amount is larger, uneconomical.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of recessed fish-bellied type combination light truss knot of large span
Structure, structure is close with existing lenticular truss structure, but moulding on the contrary, and share main couple on the basis of, by upper and lower
String links bar for jack truss interconnection, and each primary and secondary truss is made to form complete one.
To realize the above-mentioned technical purpose, the utility model adopts the following technical solution:
A kind of recessed fish-bellied type combination light truss structure of large span, it is characterised in that:
Including positioning lattice column, arch main couple, moulding main couple, moulding jack truss, overhanging main couple and it is set to purlin
Truss connecting rod between frame；
The positioning lattice column totally four, vertically arranged and arrangement are in rectangle；
It is the arch main couple totally two, longitudinal respectively to be set between two positioning lattice columns, both ends respectively with positioning
Lattice column is welded and fixed；
The moulding main couple totally two, be laterally set between two positioning lattice columns respectively, both ends respectively with positioning
Lattice column is welded and fixed；
The positioning lattice column, arch main couple and moulding main couple are enclosed rectangular framework；
The overhanging main couple has several, and the end for respectively corresponding arch main couple is set to the outside of positioning lattice column,
Setting coaxial with arch main couple, medial end are welded and fixed with positioning lattice column；
The moulding jack truss has several, laterally homogeneous to be set to two overhanging main trusses of two moulding main couples or outermost
Between frame, end is welded and fixed with arch main couple or overhanging main couple respectively；
The truss connecting rod includes upper lower edge horizontal brace rod and the conversion of main string that reinforcement is attached to moulding jack truss
Through rod, and to the elongated envelope bar in end, elongated conversion reinforcing rod and the overhanging bracing diagonal that overhanging main couple is reinforced.
Wherein, as the Preconcentration Technology scheme of the utility model, the upper lower edge horizontal brace rod is set to two neighboring make
Between type jack truss；The main string conversion through rod is set to entire truss center, is longitudinal usually setting, by all moulding jack truss
It is connected as one；The elongated envelope bar in the end tail end for being set to overhanging main couple parallel with elongated conversion reinforcing rod is laterally logical
Long setting, two overhanging main couples are connected as one and realize the connection with laterally adjacent composite roof truss structure；The overhanging
Bracing diagonal is set between elongated conversion reinforcing rod and positioning lattice column, and company is fixed with the moulding jack truss of process among it
It connects.
Further, the positioning lattice column is formed by five steel pipe combinations, and whole is in rectangle, including is located in the middle master
Column and corner post positioned at four corners；In the top and bottom position of positioning lattice column, the head tree and corner post it
Between, between adjacent corner post be respectively arranged with horizontal cross bar；In the middle position of positioning lattice column, the head tree and corner post
Between be provided with level and sew bar；It is also respectively provided between the middle position of the head tree and the top and bottom of corner post tiltedly
It is further strengthened to bar is sewed.
Further, the arch main couple is double frame, including two disposed in parallel wind up straight-bar and two lower edges
Arch bar, ipsilateral wind up are provided with the first vertical web rod and the first diagonal web member between straight-bar and arch lower boom, two straight-bars that wind up
Between set the horizontal brace rod that winds up, set string horizontal brace rod between two lower edge arch bars.
Further, described to wind up straight-bar and lower edge arch bar is spliced by multistage quarter butt.
Further, the moulding main couple is double frame, including two compound rods that wind up disposed in parallel are described to wind up
The low both sides in the centre of compound rod are high, link bar drawknot by level between two compound rods that wind up and fix, and water is arranged in middle position
Flat reinforcing rod is reinforced；Four lower booms are arranged in the bottom of the compound rod that winds up, and the compound rod that winds up respectively with two forms K
Shaped frame；Ipsilateral wind up sets the second vertical web rod and the second diagonal web member between compound rod and lower boom；Parallel arrangement of two lower edges
Bar drawknot is linked by level between bar to fix；Oblique reinforcing rod is also set up, one end of which is fixed on winding up on compound rod, the other end
It is fixed on the horizontal middle position for linking bar between lower boom.
Further, the overhanging main couple is double frame, including parallel arrangement of two overhanging top booms and two are hanged
Lower boom is chosen, corresponding fix in the two one end forms tripod, and fixed bit installs overhanging conversion rest；Ipsilateral overhanging top boom and outstanding
It chooses and is provided with overhanging vertical web rod and overhanging diagonal web member between lower boom, set to wind up between two overhanging top booms and link bar, two
String, which is set, between overhanging lower boom links bar；The overhanging top boom extends to form overhanging to overhanging conversion rest side and extends string
Bar.
Further, the elongated envelope bar in the end is laterally vertical at the tail end that overhanging extends chord member, the elongated conversion
Reinforcing rod is laterally set to overhanging conversion rest position.
Further, the moulding jack truss be K shape monolithic truss, including top boom and combination lower boom, it is described to wind up
Disconnecting among bar becomes two sections, passes through for main string conversion through rod and is consolidated with it；The top boom and combination lower boom it
Between be equipped with third vertical web rod and third diagonal web member.
The utility model truss structure is special-shaped large-span truss, can be thick and heavy with multiple both ends in parallel that formed, intermediate frivolous
Big area roof, its structure is complicated, and structure lenticular truss small in ends more broad in the middle is more firm；Meanwhile according to secondary purlin
Size, the length of frame both ends English truss and intermediate monochord bar, control the recessed fish belly moulding of whole truss structure；Master is shared between every truss structure
Truss and bar interconnection is linked, entire roof truss is made to form reasonable stress entirety handsome in appearance；
Specifically, compared with prior art, the utility model makes truss guarantee moulding by following four major technique
While guarantee stress:
1) positioning lattice column is tube column formula, by round tube horizon bar and sew bar by intermediate main upright bar and quadrangle time upright bar and
It is connected between secondary upright bar, forms lattice column, ensure that the rigidity of truss；
2) lower edge strengthens main couple stress-bearing capability using lower boom as arch for arcuately main couple；
3) jack truss is monolithic truss, and by the nearly English truss of single chord member connection both ends monolithic, and every truss structure is according to secondary
The size length of truss both ends English truss and intermediate monochord bar, controls the moulding of whole truss structure；
4) primary and secondary truss rational deployment, forms whole truss, and intensity is guaranteed.
Detailed description of the invention
By made detailed description in conjunction with the following drawings, above-mentioned and/or other aspects and advantage of the utility model will
It becomes more apparent upon and is easier to understand, these attached drawings are only schematical, are not intended to limit the utility model, in which:
Fig. 1 be the utility model relates to the recessed fish-bellied type of large span combine the overall structure signal of light truss structure
Figure；
Fig. 2 be the utility model relates to arch main couple structural schematic diagram；
Fig. 3 be the utility model relates to positioning lattice column structural schematic diagram；
Fig. 4 be the utility model relates to moulding main couple structural schematic diagram；
Fig. 5 be the utility model relates to overhanging main couple structural schematic diagram；
Fig. 6 be the utility model relates to moulding jack truss structural schematic diagram.
Appended drawing reference: the main string of the upper lower edge horizontal brace rod of 1- truss connecting rod, 11-, 12- converts through rod, the elongated envelope in the end 13-
The elongated conversion reinforcing rod of bar, 14-, 15- overhanging bracing diagonal, 2- moulding jack truss, 21- top boom, 22- combine lower boom, 23-
Third vertical web rod, 24- third diagonal web member, 3- positioning lattice column, 31- head tree, 32- corner post, 33- horizontal cross bar, 34- are horizontal
Sew oblique wind up straight-bar, the first vertical web rod of 43-, the 44- of bar, 4- arch main couple, 41- arch lower boom, 42- that sew of bar, 35- to wind up
Horizontal brace rod, 45- lower edge horizontal brace rod, the first diagonal web member of 46-, 5- moulding main couple, 51- wind up compound rod, 52- lower edge
It is outstanding that the horizontal reinforcing rod of bar, 53-, 54- level link bar, the second vertical web rod of 55-, the oblique reinforcing rod of 56-, the second diagonal web member of 57-, 6-
Choose main couple, 61- overhanging top boom, 62- overhanging lower boom, 63- lower edge link bar, 64- winds up links bar, 65- overhangs straight abdomen
Bar, 66- overhanging diagonal web member, 67- overhanging conversion rest, 68- overhanging extend chord member.
Specific embodiment
Hereinafter, a kind of recessed fish-bellied type combination light truss knot of large span of the utility model is described with reference to the accompanying drawings
The embodiment of structure.
The embodiment recorded herein is the specific specific embodiment of the utility model, for illustrating the utility model
Design, be it is explanatory and illustrative, should not be construed as the limit to the utility model embodiment and the scope of the utility model
System.In addition to the embodiment recorded herein, those skilled in the art can also be public based on the claim of this application book and specification institute
For the content opened using obvious other technical solutions, these technical solutions include using doing to the embodiment recorded herein
The technical solution of any obvious substitutions and modifications out.The attached drawing of this specification is schematic diagram, and it is practical new to aid in illustrating this
The design of type, it is schematically indicated the shape and its correlation of each section.It note that for the ease of clearly showing this reality
With the structure of each component of new embodiment, do not drawn according to identical ratio between each attached drawing.Identical reference marker is used
In the identical part of expression.
The principles of the present invention and feature are described below in conjunction with attached drawing, example is served only for explaining that this is practical
It is novel, it is not intended to limit the scope of the utility model.Such as Fig. 1, a kind of recessed fish-bellied type of large span combines light truss structure,
It is characterized by comprising positioning lattice column 3, arch main couple 4, moulding main couple 5, moulding jack truss 2, overhanging main couple 6 with
And the truss connecting rod 1 between truss, lattice column 3 totally four are positioned, vertically arranged and arrangement is in rectangle；Arch main couple 4
Totally two, longitudinal respectively to be set between two positioning lattice columns 3, both ends are welded and fixed with positioning lattice column 3 respectively；Moulding master
It truss 5 totally two, is laterally set between two positioning lattice columns 3 respectively, both ends are welded and fixed with positioning lattice column 3 respectively；
Positioning lattice column 3, arch main couple 4 and moulding main couple 5 are enclosed rectangular framework；Overhanging main couple 6 has several, respectively
The end of corresponding arch main couple 4 is set to the outside of positioning lattice column 3, setting coaxial with arch main couple 4, medial end with
Positioning lattice column 3 is welded and fixed；Moulding jack truss 2 has several, laterally homogeneous to be set to two moulding main couples 5 or outermost two
Between a overhanging main couple 6, end is welded and fixed with arch main couple 4 or overhanging main couple 6 respectively；Truss connecting rod 1 includes pair
Moulding jack truss 2 is attached the upper lower edge horizontal brace rod 11 and main string conversion through rod 12 of reinforcement, and to overhanging main couple 6
The elongated envelope bar 13 in the end reinforced, elongated conversion reinforcing rod 14 and overhanging bracing diagonal 15.
Wherein, upper lower edge horizontal brace rod 11 is set between two neighboring moulding jack truss 2；Main string conversion through rod 12 is set to
All moulding jack truss 2 are connected as one by entire truss center for longitudinal usually setting.The elongated envelope bar 13 in end and elongated
The tail end that reinforcing rod 14 is set to overhanging main couple 6 in parallel is converted to be connected as two overhanging main couples 6 for laterally elongated setting
The connection of one and realization and laterally adjacent composite roof truss structure；Overhang bracing diagonal 15 to be set to elongated conversion reinforcing rod 14 and determine
Between the lattice column 3 of position, it is fixedly connected among it with the moulding jack truss 2 of process.
Such as Fig. 2, arch main couple 4 is double frame, including two disposed in parallel wind up straight-bar 42 and two lower edge arches
Bar 41, ipsilateral wind up is provided with the first vertical web rod 43 and the first diagonal web member 46 between straight-bar 42 and arch lower boom 41, on two
The horizontal brace rod 44 that winds up is set between string straight-bar 42, sets string horizontal brace rod 45 between two lower edge arch bars 41.It winds up straight
Bar 42 and lower edge arch bar 41 are spliced by multistage quarter butt.
It such as Fig. 3, positions lattice column 3 and is formed by five steel pipe combinations, whole is in rectangle, including is located in the middle head tree 31
With the corner post 32 for being located at four corners；In the top and bottom position of positioning lattice column 3, head tree 31 and corner post 32 it
Between, between adjacent corner post 32 be respectively arranged with horizontal cross bar 33；In the middle position of positioning lattice column 3, head tree 31 and angle
It is provided with level between column 32 and sews bar 34；Also distinguish between the middle position of head tree 31 and the top and bottom of corner post 32
Oblique bar 35 of sewing is provided with to be further strengthened.
Such as Fig. 4, moulding main couple 5 is double frame, including the two disposed in parallel compound rods 51 that wind up, and wind up compound rod 51
The low both sides in centre it is high, 54 drawknot of bar is linked by level between two compound rods 51 that wind up and is fixed, middle position setting level
Reinforcing rod 53 is reinforced；Wind up compound rod 51 bottom be arranged four lower booms 52,51 shape of compound rod of winding up respectively with two
At K shaped frame；Ipsilateral wind up sets the second vertical web rod 55 and the second diagonal web member 57 between compound rod 51 and lower boom 52；Parallel setting
Two lower booms 52 between 54 drawknot of bar linked by level fix；Oblique reinforcing rod 56 is also set up, one end of which is fixed on upper
On string compound rod 51, the other end is fixed on the horizontal middle position for linking bar 54 between lower boom 52.
Such as Fig. 5, overhanging main couple 6 is under double frame, including parallel arrangement of two overhanging top booms 61 and two overhangings
Chord member 62, corresponding fix in the two one end form tripod, and fixed bit installs overhanging conversion rest 67；Ipsilateral 61 He of overhanging top boom
It is provided with overhanging vertical web rod 65 and overhanging diagonal web member 66 between overhanging lower boom 62, sets the company of winding up between two overhanging top booms 61
Tie-rod 64 sets string between two overhanging lower booms 62 and links bar 63；Overhanging top boom 61 prolongs to overhanging conversion 67 side of rest
It stretches to form overhanging extension chord member 68.The elongated envelope bar 13 in end is laterally vertical at the tail end that overhanging extends chord member 68, elongated conversion
Reinforcing rod 14 is laterally set to overhanging conversion 67 position of rest.
Such as Fig. 6, moulding jack truss 2 is K shape monolithic truss, including top boom 21 and combination lower boom 22, in top boom 21
It is separated to become two sections, pass through for main string conversion through rod 12 and is consolidated with it；Between top boom 21 and combination lower boom 22
Equipped with third vertical web rod 23 and third diagonal web member 24.
The installation method of the above-mentioned recessed fish-bellied type combination light truss structure of large span includes the following steps:
Step 1: preparation: carrying out material and prepare simultaneously measurement and positioning；
Step 2: installation positioning lattice column 3:
(1) tire on head tree 31 is positioned；
(2) successively assembled level sews bar 34 and oblique sew bar 35 and weld with head tree 31 from bottom to top；
(3) be successively symmetrically installed corner post 32 and successively symmetrically sew with level bar 34 and it is oblique sew bar 35 welding；
(4) horizontal cross bar 33 is installed and is welded with corner post 32；
Step 3: installation moulding main couple 5, and welded with positioning lattice column 3:
(1) the assembled upper tire of the compound rod 51 that winds up simultaneously positions；
(2) it successively assembled second vertical web rod 55, lower boom 52 and welds；
(3) it assembled second diagonal web member 57 and welds, while welding is winded up compound rod 51 and lower boom 52；
(4) successively assembled horizontal reinforcing rod 53, level link bar 54 and weld；
(5) it assembled oblique reinforcing rod 56 and welds；
Step 4: installation arch main couple 4, and welded with positioning lattice column 3:
(1) tire positions on arch lower boom 41；
The successively upper tire positioning of (2) first vertical web rods 43；
(3) on top boom 42 tire position and successively welded from centre to both ends the first vertical web rod 43 and arch lower boom 41 and
42 interface of top boom；
(4) it assembled first diagonal web member 46 and is welded with arch lower boom 41 and top boom 42；
(5) assembly, which is winded up, links bar 44 and lower edge links bar 45 and welds；
Step 5: moulding jack truss 2 and main string conversion through rod 12 are installed simultaneously, main string conversion through rod 12 and moulding jack truss
2, moulding jack truss 2 is respectively welded with arch main couple 4；
(1) it carries out tire positioning on top boom 21 and is welded and fixed with main string conversion through rod 12;
(2) tire assembly is fixed on third vertical web rod 23;
(3) it is assembled to combine tire on lower boom 22, wherein divides between top boom 21, combination lower boom 22 and third vertical web rod 23
It does not weld;
(4) third diagonal web member 24 is assembled and welds；
Step 6: installation overhanging main couple 6:
(1) it carries out the assembled upper tire of overhanging top boom 61 and positions;
(2) successively assembled to overhang diagonal web member 65 and overhanging lower boom 62 and weld;
(3) assembled to overhang diagonal web member 66 and weld, while welding overhanging top boom 61 and overhanging lower boom 62;
(4) successively assembled lower edge links bar 63 and winds up and links bar 64 and weld;
(5) successively assembled overhanging conversion rest 67, overhanging extend chord member 68, while the elongated envelope bar 13 of mounting end and logical
Long conversion reinforcing rod 14 is installed simultaneously, and is welded；
Step 7: installing remaining truss connecting rod 1: it is included between moulding jack truss 2 and installs lower edge horizontal brace rod 11,
And the installation overhanging bracing diagonal 15 between overhanging main couple 6 and positioning lattice column 3；
Step 8: light truss structure is combined in whole quality inspection, so far, the recessed fish-bellied type of large span.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (9)
1. a kind of recessed fish-bellied type of large span combines light truss structure, it is characterised in that:
Including positioning lattice column (3), arch main couple (4), moulding main couple (5), moulding jack truss (2), overhanging main couple (6)
And the truss connecting rod (1) between truss；
The positioning lattice column (3) totally four, vertically arranged and arrangement are in rectangle；
The arch main couple (4) totally two is distinguished longitudinal direction and is set between two positioning lattice columns (3), and both ends are respectively and fixed
Position lattice column (3) is welded and fixed；
The moulding main couple (5) totally two is distinguished laterally between two positioning lattice columns (3), and both ends are respectively and fixed
Position lattice column (3) is welded and fixed；
The positioning lattice column (3), arch main couple (4) and moulding main couple (5) are enclosed rectangular framework；
The overhanging main couple (6) has several, and the end for respectively corresponding arch main couple (4) is set to positioning lattice column (3)
Outside, setting coaxial with arch main couple (4), medial end are welded and fixed with positioning lattice column (3)；
The moulding jack truss (2) has several, laterally homogeneous to be set to two overhangings masters of two moulding main couples (5) or outermost
Truss (6) or between, end respectively with arch main couple (4) or overhanging main couple (6) be welded and fixed；
The truss connecting rod (1) includes upper lower edge horizontal brace rod (11) and the master that reinforcement is attached to moulding jack truss (2)
String convert through rod (12), and to overhanging main couple (6) reinforced the elongated envelope bar (13) in end, elongated conversion reinforcing rod
(14) and overhang bracing diagonal (15).
2. the recessed fish-bellied type of a kind of large span according to claim 1 combines light truss structure, it is characterised in that: described
Upper lower edge horizontal brace rod (11) is set between two neighboring moulding jack truss (2)；Main string conversion through rod (12) is set to whole
All moulding jack truss (2) are connected as one by a truss center, longitudinally through entire truss；The elongated envelope bar in end
(13) tail end for being set to overhanging main couple (6) parallel with elongated conversion reinforcing rod (14) will overhang main truss for laterally elongated setting
Frame (6) is connected as one and realizes the connection with laterally adjacent composite roof truss structure；The overhanging bracing diagonal (15) is set to logical
Between long conversion reinforcing rod (14) and positioning lattice column (3), it is fixedly connected among it with the moulding jack truss (2) of process.
3. the recessed fish-bellied type of a kind of large span according to claim 1 combines light truss structure, it is characterised in that: described
Positioning lattice column (3) You Wugen steel pipe combination forms, and whole is in rectangle, including is located in the middle head tree (31) and is located at four
The corner post (32) in corner；In the top and bottom position of positioning lattice column (3), the head tree (31) and corner post (32) it
Between, between adjacent corner post (32) be respectively arranged with horizontal cross bar (33)；In the middle position of positioning lattice column (3), the master
It is provided with level between column (31) and corner post (32) and sews bar (34)；The middle position of the head tree (31) and corner post
(32) oblique bar (35) of sewing is also respectively provided between top and bottom to be further strengthened.
4. the recessed fish-bellied type of a kind of large span according to claim 1 combines light truss structure, it is characterised in that: described
Arch main couple (4) is double frame, including two straight-bars that wind up (42) He Lianggen lower edge arch bar (41) disposed in parallel is ipsilateral
It winds up and is provided with the first vertical web rod (43) and the first diagonal web member (46) between straight-bar (42) and arch lower boom (41), two are winded up
It is set between straight-bar (42) horizontal brace rod that winds up (44), sets string horizontal brace rod (45) between two lower edge arch bars (41).
5. the recessed fish-bellied type of a kind of large span according to claim 4 combines light truss structure, it is characterised in that: described
It winds up straight-bar (42) and lower edge arch bar (41) is spliced by multistage quarter butt.
6. the recessed fish-bellied type of a kind of large span according to claim 1 combines light truss structure, it is characterised in that: described
Moulding main couple (5) is double frame, including two compound rods that wind up (51) disposed in parallel, in the compound rod that winds up (51)
Between low both sides it is high, bar (54) drawknot is linked by level between two compound rods that wind up (51) and is fixed, middle position setting level
Reinforcing rod (53) is reinforced；Four lower booms (52) are arranged in the bottom of the compound rod that winds up (51), wind up respectively with two
Compound rod (51) forms K shaped frame；The second vertical web rod (55) and are set between the ipsilateral compound rod that winds up (51) and lower boom (52)
Two diagonal web members (57)；Bar (54) drawknot is linked by level between parallel arrangement of two lower booms (52) to fix；It also sets up tiltedly
To reinforcing rod (56), one end of which is fixed on the compound rod that winds up (51), the other end is fixed on level between lower boom (52) and links
The middle position of bar (54).
7. the recessed fish-bellied type of a kind of large span according to claim 1 combines light truss structure, it is characterised in that: described
Main couple (6) are overhang for double frame, including parallel arrangement of two overhanging top booms (61) and two overhanging lower booms (62), two
Corresponding fix in person one end forms tripod, and fixed bit installs overhanging conversion rest (67)；Ipsilateral overhanging top boom (61) and overhanging
It is provided with overhanging vertical web rod (65) and overhanging diagonal web member (66) between lower boom (62), is set between two overhanging top booms (61)
String links bar (64), sets string between two overhanging lower booms (62) and links bar (63)；The overhanging top boom (61) is to overhanging
Conversion rest (67) side extends to form overhanging and extends chord member (68).
8. the recessed fish-bellied type of a kind of large span according to claim 7 combines light truss structure, it is characterised in that: described
The elongated envelope bar (13) in end is laterally vertical at the tail end that overhanging extends chord member (68), and the elongated conversion reinforcing rod (14) is laterally
Rest (67) position is converted set on overhanging.
9. the recessed fish-bellied type of a kind of large span according to claim 1 combines light truss structure, it is characterised in that: described
Moulding jack truss (2) is K shape monolithic truss, including top boom (21) and combination lower boom (22), top boom (21) centre
Disconnecting becomes two sections, passes through for main string conversion through rod (12) and is consolidated with it；The top boom (21) and combination lower boom
(22) third vertical web rod (23) and third diagonal web member (24) are equipped between.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821891266.XU CN209163212U (en) | 2018-11-16 | 2018-11-16 | A kind of recessed fish-bellied type combination light truss structure of large span |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821891266.XU CN209163212U (en) | 2018-11-16 | 2018-11-16 | A kind of recessed fish-bellied type combination light truss structure of large span |
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| CN209163212U true CN209163212U (en) | 2019-07-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109235771A (en) * | 2018-11-16 | 2019-01-18 | 中建二局安装工程有限公司 | A kind of recessed fish-bellied type combination light truss structure of large span and its installation method |
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2018
- 2018-11-16 CN CN201821891266.XU patent/CN209163212U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109235771A (en) * | 2018-11-16 | 2019-01-18 | 中建二局安装工程有限公司 | A kind of recessed fish-bellied type combination light truss structure of large span and its installation method |
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