CN205329849U - String liang wugai is opened to large -span steel construction antiarch - Google Patents
String liang wugai is opened to large -span steel construction antiarch Download PDFInfo
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- CN205329849U CN205329849U CN201620046337.0U CN201620046337U CN205329849U CN 205329849 U CN205329849 U CN 205329849U CN 201620046337 U CN201620046337 U CN 201620046337U CN 205329849 U CN205329849 U CN 205329849U
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Abstract
The utility model discloses a string liang wugai is opened to large -span steel construction antiarch, vertical distribution's purlin between the unit roof beam of arranging including a set of parallel and the adjacent unit roof beam, the unit roof beam is including the cable of opening the string roof beam with be located its lower part, it is equipped with many vaulting poles to open between string roof beam and the cable, steel -casting rigging and cable fixed connection are passed through through round pin axle and a string roof beam fixed connection, lower extreme in the upper end of vaulting pole, unit roof beam both ends bottom is equipped with spherical steel bearing, be equipped with the suspension cable between vaulting pole and the purlin that corresponds, the roofing is opened and is equipped with the roofing cross bracing between the string roof beam. To open its structural design of string liang wugai equitable, adopt the emergence of steel -casting rigging stay guy slippage prevention phenomenon.
Description
Technical field
This utility model relates to steel building technical field, is specially a kind of large-span steel antiarch beam string roof system and construction method thereof。
Background technology
At present, steel construction is more and more extensive in the application of civil engineering work technical field。But along with the roof structure of large span is got more and more application, sharply increasing due to its deadweight, overall structure faces the contradiction using function, design rationality and economic indicator mutually to restrict, in order to meet the use function of structure, reducing dead load simultaneously, improve the rigidity of structure, the prestressing force beam string structure structure being furnished with drag-line is more and more applied in large-scale steel building。By the layout of prestressed drag-line Yu strut, the bearing capacity and stiffness of the spatial steel structure of large span has had very big improvement。Tension string beam structure can be divided into Plane Beam String Structure and Spatial Beam String Structure by stress；In Plane Beam String Structure refers to that its structural elements is generally aligned in the same plane, and based on the tension string beam structure of stress in plane。Plane Beam String Structure can be divided into three kinds of primitive forms according to the shape of upper chord member: linear type beam string, arch beam string, chevron shaped tension string beam structure。
For counter-arch shaped beam string, its beam string girder is recessed layout, and drag-line adopts that mode that otic placode pivot pin connects is fixing with girder to be connected mostly, owing to its drag-line needs the angle changing rate bent big, need the yield strength that overcomes also just relative relatively big, therefore cause bigger difficulty to the installation of drag-line；Simultaneously because the angle that counter-arch shaped design causes drag-line and strut is relatively larger, it is easy to cause Relative sliding, therefore how to better ensure that fixation problem is shown with problem to be solved。It addition, because the overall span of antiarch beam string is relatively big, roof structure weight is relatively larger, adopts traditional lifting mode cannot meet construction requirement, it also is difficult to ensure machining accuracy simultaneously。
Utility model content
The purpose of utility model: in order to overcome above deficiency, the open a kind of large-span steel antiarch beam string roof system of this utility model, there is reasonable in design, consolidate, and ensure that the phenomenon not havinging sliding in the process of integral tension, even if when large span carrying, also can guarantee that the stable firm of structure。
Technical scheme: in order to realize object above, the utility model discloses a kind of large-span steel antiarch beam string roof system, including the purlin of vertical distribution between unit beam and the adjacent cells beam of one group of parallel arrangement；Described one group of unit beam two ends are provided with tubular truss；Described unit beam includes beam string and is positioned at the drag-line of its underpart；Many struts it are provided with between described beam string and drag-line；The upper end of described strut is connected by bearing pin and beam string are fixing, and lower end is connected by steel-casting rigging and drag-line are fixing；Described drag-line two ends are hinged fixing by O type rope head and beam string；It is provided with spherical steel support bottom described unit beam two ends；It is provided with suspension cable between described strut and corresponding purlin；It is provided with roofing cross support between described roofing beam string。
Antiarch beam string described in the utility model, adopts pivot pin to fix and is connected so that the process at cable tension is crossed will not be excessive because of stress, causes that internal stress each other is excessive, the phenomenon therefore ruptured between its strut with beam string；Strut is connected by steel-casting lockset and drag-line are fixing simultaneously so that without the phenomenon producing sliding under bigger angle, it is ensured that stablizing of structure；The additionally use of O type rope head so that the stretching process enhanced convenience of zip is quick。
Further, above-mentioned a kind of large-span steel antiarch beam string roof system, spherical steel support described in every Pin unit beam is provided with 3, and steel pipe column corresponding with bottom respectively is fixing to be connected。
Further, above-mentioned a kind of large-span steel antiarch beam string roof system, described beam string adopts steel beam with box shape segmented assembly to form。
Further, above-mentioned a kind of large-span steel antiarch beam string roof system, in described every Pin beam string, drag-line is provided with two；The high vanadium coating drag-line processing that described drag-line adopts diameter to be 95mm～100mm prepares。High vanadium rigging has good rigidity, toughness and wearability, it is ensured that drag-line does not have phenomenon of rupture under huge tension force effect, it is ensured that stablizing of structure。
Further, above-mentioned a kind of large-span steel antiarch beam string roof system, described roofing cross support crosses through purlin, and is connected by pivot pin and beam string are fixing。Roofing cross support ensure that being connected firmly between unit beam and purlin, is equivalent to the effect of reinforcement, it is possible to ensures the integraty of whole roof structure。
Further, above-mentioned a kind of large-span steel antiarch beam string roof system, described purlin adopts H profile steel processing to prepare。
Meanwhile, this utility model also provides for the installation method of a kind of large-span steel antiarch beam string roof system, specifically includes following steps:
1) according to concrete designing requirement, the finite element analysis of roof system, stretching force calculating and analogue simulation are carried out；
2) set up on-site consolidation moulding bed and support tower, utilize tower crane that the steel pipe column of most inside tube truss and both sides is installed；
3) the interim moulding bed of gate-type lattice is set up, and segmented assembly the oneth Pin beam string, then mounting stay and drag-line in the above, and mounting purlines, stretching oblique drag-line；
4) installation of the 2nd Pin, the 3rd Pin unit beam and purlin each other it is sequentially completed according to step 3)；
5) the 4th Pin unit beam, simultaneous tension the oneth Pin unit beam are installed so that it is depart from temporary support moulding bed；
6) the 5th Pin unit beam, simultaneous tension the 2nd Pin unit beam are installed so that it is depart from temporary support moulding bed；
7) according to above-mentioned steps, complete the installation of all unit beams, utilize tower crane to be lifted by outermost one Pin tubular truss simultaneously；
8) along the opposite direction of erection sequence successively stretch-draw drag-line to 100% pretension, and roofing cross support is installed, and then completes the installation of described beam string roof system。
Further, the installation method of above-mentioned a kind of large-span steel antiarch beam string roof system, the flow of installation of described tubular truss is: truss sections assembly moulding bed makes；Tubular truss main chord positions；The vertical web member location of truss；The horizontal web member of truss and diagonal web member location and installation；Rod member welding and detection；Postwelding corrects；Segmentation application。
Further, the installation method of above-mentioned a kind of large-span steel antiarch beam string roof system, temporary support moulding bed support shuttering absolute altitude is first carried out repetition measurement before installing by described unit beam segmentation, meets after installation accuracy requires and can lift；For guaranteeing stablizing of beam string segmentation, when, after split fix, carrying out the tack welding welding of weld seam between segmentation as early as possible, and respectively install a roof system secondary beam at segmentation two ends, form stabilising system as early as possible with the beam string of previous Pin installation, it is ensured that construction safety。
Technique scheme can be seen that, this utility model has the advantages that described a kind of large-span steel antiarch beam string roof system of the present utility model and construction method thereof, described its reasonable in design of beam string roof system, by steel casting rigging, strut ensure that drag-line is not result in occurring sliding phenomenon each other in the process of stretch-draw, drag-line two ends are connected by O type rope head and beam string are fixing simultaneously, owing to the girder of antiarch beam string supports recessed state, the tension force that drag-line bears is bigger, therefore to enable to the stretch-draw enhanced convenience of zip quick for O type rope head；Furthermore, strut is by the purlin necklace of suspension cable with both sides, it is prevented that beam string occurs, due to the stress effect being subject to inside, the phenomenon that side tilts。It addition, installation method described in the utility model, the method that described unit beam is adopted segmented assembly, simplify the structure of entirety so that install quick more in order；Meanwhile, before completing after the installation of four Pin unit beams, the stretch-draw pretension of a Pin unit beam is carried out, it is ensured that the structure between total is unified so that butting error each other reduces。
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model；
Fig. 2 is the local connection diagram of beam string described in the utility model and drag-line；
Fig. 3 is strut described in the utility model and beam string top connection diagram；
Fig. 4 is strut described in the utility model and beam string bottom connection diagram；
Fig. 5 is that support described in the utility model is done and the locally-attached side view of beam string；
Fig. 6 is spherical steel support partial schematic diagram described in the utility model；
In figure: 1-beam string, 2-drag-line, 3-strut, 4-spherical steel support, 5-steel casting rigging, 6-O type rope head, 7-suspension cable, 8-roofing cross support, 9-purlin, 10-tubular truss。
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model detailed description of the invention is described in detail。
Embodiment
A kind of large-span steel antiarch beam string roof system as shown in figs. 1 to 6, including the purlin 9 of vertical distribution between unit beam and the adjacent cells beam of one group of parallel arrangement；Described one group of unit beam two ends are provided with tubular truss 10；Described unit beam includes beam string 1 and is positioned at the drag-line 2 of its underpart, and wherein beam string 1 adopts steel beam with box shape segmentation to be welded, and the high vanadium coating drag-line processing that drag-line 2 adopts diameter to be 95mm～100mm prepares；It is provided with many struts 3 between described beam string 1 and drag-line 2；The upper end of strut 3 as shown in Figure 2 and Figure 3 is connected by bearing pin is fixing with beam string 1, lower end is connected by steel-casting rigging 5 is fixing with drag-line 2, wherein drag-line 2 is provided with two, it is each passed through two through holes in steel casting rigging 5, both sides rely on steel casting rigging 5 to step up, prevent sliding phenomenon, it is ensured that structure firm。Additionally drag-line 2 two ends are hinged fixing by O type rope head 6 and beam string 1, the wherein external connection otic placode of O type rope head, connect otic placode hinged with the two ends of beam string 1 by pivot pin；Being provided with spherical steel support 4 bottom described unit beam two ends, spherical steel support has the effect of antidetonation, and spherical steel support 4 is provided with 3, and steel pipe column corresponding with bottom respectively is fixing to be connected；It is provided with suspension cable 7 between described strut 3 and corresponding purlin 9；It is provided with roofing cross support 8 between described roofing beam string 1, roofing cross support 8 crosses through purlin 9, and be connected by pivot pin is fixing with beam string 1, it is uniformly arranged on the surrounding of whole roof structure, and between the middle two Pin beam string 1 of whole roof structure, it is further ensured that the structural stability of whole roof system, improves its wind loading rating。
It addition, the installation method of above-mentioned a kind of large-span steel antiarch beam string roof system, specifically include following steps:
1) according to concrete designing requirement, the finite element analysis of roof system, stretching force calculating and analogue simulation are carried out；
2) set up on-site consolidation moulding bed and support tower, utilize tower crane that the steel pipe column of most inside tube truss 10 and both sides is installed；
3) the interim moulding bed of gate-type lattice is set up, and segmented assembly the oneth Pin beam string 1, then mounting stay 3 and drag-line 2 in the above, and mounting purlines 9, stretching oblique drag-line 7；
4) installation of the 2nd Pin, the 3rd Pin unit beam and purlin 9 each other it is sequentially completed according to step 3)；
5) the 4th Pin unit beam, simultaneous tension the oneth Pin unit beam are installed so that it is depart from temporary support moulding bed；
6) the 5th Pin unit beam, simultaneous tension the 2nd Pin unit beam are installed so that it is depart from temporary support moulding bed；
7) according to above-mentioned steps, complete the installation of all unit beams, utilize tower crane to be lifted by outermost one Pin tubular truss 10 simultaneously；
8) along the opposite direction of erection sequence successively stretch-draw drag-line to 100% pretension, and roofing cross support 8 is installed, and then completes the installation of described beam string roof system。
Preferably, the flow of installation of tubular truss 10 is: truss sections assembly moulding bed makes；Tubular truss main chord positions；The vertical web member location of truss；The horizontal web member of truss and diagonal web member location and installation；Rod member welding and detection；Postwelding corrects；Segmentation application。
Preferably, temporary support moulding bed support shuttering absolute altitude is first carried out repetition measurement before installing by its unit beam segmentation, meets after installation accuracy requires and can lift；For guaranteeing stablizing of beam string segmentation, when, after split fix, carrying out the tack welding welding of weld seam between segmentation as early as possible, and respectively install a roof system secondary beam at segmentation two ends, form stabilising system as early as possible with the beam string of previous Pin installation, it is ensured that construction safety。
Preferably, every Pin beam string has 2 drag-lines, and drag-line is single-ended adjustment drag-line, therefore utilizes a set of frock to carry out stretch-draw for two drag-lines of same Pin beam string simultaneously。First the drag-line prestress value provided according to designing unit, carries out simulative calculation of construction, the most about 25T of inclined guy cable stretching power, and roofing steadying line pulling force is about 10T, and rope head form is U-shaped rope head。In stretching process, 2 25t jack of 1 oil pump band work simultaneously。Reinforcing pull rod is provided with branch sleeve, adopts sleeve Shi Hanzhang is reached the purpose to pull bar Shi Hanzhang during stretch-draw。2 25T jack are adopted to carry out stretch-draw when reinforcing pull rod carries out stretch-draw, by frock, the bowl button at regulating sleeve two ends is applied pressure, by the length of rotating regulating sleeve adjusting yoke, can be able to realize reinforcing pull rod Shi Hanzhang after lifting jack unloading after regulating sleeve unloads。
The above is only preferred implementation of the present utility model; it should be pointed out that, for those skilled in the art, under the premise without departing from this utility model principle; can also making some improvement, these improvement also should be regarded as protection domain of the present utility model。
Claims (6)
1. a large-span steel antiarch beam string roof system, it is characterised in that: including: the purlin (9) of vertical distribution between unit beam and the adjacent cells beam of one group of parallel arrangement；Described one group of unit beam two ends are provided with tubular truss (10)；Described unit beam includes beam string (1) and is positioned at the drag-line (2) of its underpart；Many struts (3) it are provided with between described beam string (1) and drag-line (2)；The upper end of described strut (3) is connected by bearing pin and beam string (1) are fixing, and lower end is connected by steel-casting rigging (5) and drag-line (2) are fixing；Described drag-line (2) two ends are hinged with beam string (1) fixing by O type rope head (6)；It is provided with spherical steel support (4) bottom described unit beam two ends；Suspension cable (7) it is provided with between described strut (3) and corresponding purlin (9)；It is provided with roofing cross support (8) between described roofing beam string (1)。
2. a kind of large-span steel antiarch beam string roof system according to claim 1, it is characterised in that: spherical steel support (4) described in every Pin unit beam is provided with 3, and steel pipe column corresponding with bottom respectively is fixing to be connected。
3. a kind of large-span steel antiarch beam string roof system according to claim 1, it is characterised in that: described beam string (1) adopts steel beam with box shape segmented assembly to form。
4. a kind of large-span steel antiarch beam string roof system according to claim 1, it is characterised in that: in described every Pin beam string (1), drag-line (2) is provided with two；The high vanadium coating drag-line processing that described drag-line (2) adopts diameter to be 95mm～100mm prepares。
5. a kind of large-span steel antiarch beam string roof system according to claim 1, it is characterised in that: described roofing cross support (8) crosses through purlin (9), and is connected by pivot pin and beam string (1) are fixing。
6. a kind of large-span steel antiarch beam string roof system according to claim 1, it is characterised in that: described purlin (9) adopts H profile steel processing to prepare。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620046337.0U CN205329849U (en) | 2016-01-18 | 2016-01-18 | String liang wugai is opened to large -span steel construction antiarch |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620046337.0U CN205329849U (en) | 2016-01-18 | 2016-01-18 | String liang wugai is opened to large -span steel construction antiarch |
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| CN205329849U true CN205329849U (en) | 2016-06-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105569187A (en) * | 2016-01-18 | 2016-05-11 | 江苏沪宁钢机股份有限公司 | Inverted arch beam string structure roof of large-span steel structure and construction method thereof |
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2016
- 2016-01-18 CN CN201620046337.0U patent/CN205329849U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105569187A (en) * | 2016-01-18 | 2016-05-11 | 江苏沪宁钢机股份有限公司 | Inverted arch beam string structure roof of large-span steel structure and construction method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 214200 Baijia village, Zhangzhu Town, Yixing City, Wuxi City, Jiangsu Province Patentee after: JIANGSU HUNING STEEL MECHANISM Co.,Ltd. Address before: 214200 Zhang Zhu Zhen Bai Jia Cun, Yixing City, Wuxi City, Jiangsu Province Patentee before: JIANGSU HUNING STEEL MECHANISM Co.,Ltd. |