CN105178583A - Steel truss overhung operation platform and construction method thereof - Google Patents
Steel truss overhung operation platform and construction method thereof Download PDFInfo
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- CN105178583A CN105178583A CN201510504243.3A CN201510504243A CN105178583A CN 105178583 A CN105178583 A CN 105178583A CN 201510504243 A CN201510504243 A CN 201510504243A CN 105178583 A CN105178583 A CN 105178583A
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Abstract
The invention provides a steel truss overhung operation platform and a construction method thereof, and belongs to the field of architectural engineering. The operation platform comprises a plurality of long-strip-shaped steel trusses which are arranged in an inclined mode and are arranged at intervals in a horizontal direction to form a supporting structure; a plurality of step plates are arranged on the supporting structure and are used for forming steps for a constructor to get up and down; and side edges of the steps are provided with enclosure structures for guaranteeing personal safety of the constructor. The construction method comprises the following steps: determining construction load and strength requirements on the platform; manufacturing the steel truss which meets the requirements; and hoisting the plurality of the steel trusses by utilizing a tower crane, thereby completing mounting of the supporting structure and completing mounting of steps and the enclosure structures. The steel truss overhung operation platform has the characteristics of a stable structure and convenient construction; and the construction method for the steel truss overhung operation platform has the characteristics of being labor-saving, time-saving, and high in safety.
Description
Technical field
The present invention relates to building engineering field, to encorbelment operating platform and construction method thereof in particular to steel truss.
Background technology
Instantly builing industry is flourish, and a hundred flowers blossom for all kinds of building, and architectural image is new and original, has occurred many complex structures in life, the large building of difficulty of construction.The problems such as wherein, Long-span Cantilever structure plays vital effect in shape-designing, and it is large that this structure also also exists difficulty of construction while allowing people find everything fresh and new, and security requirement is high.
First the intensity of claimed structure own is very high for the construction operation platform of Long-span Cantilever structure, if adopt overhanging steel structure, requires excessive, cause uneconomical and conduct oneself with dignity excessive Design of Steel Structural Element Sections.Simultaneously Long-span Cantilever structure just local one deck or which floor to choose outward, according to traditional scaffold building, not only time-consuming, and excessive height, dangerous.So traditional external scaffolding and i iron operating platform of encorbelmenting have been difficult to the safe and efficient construction operation platform as Long-span Cantilever structure.
Summary of the invention
A kind of steel truss is the object of the present invention is to provide to encorbelment operating platform and construction method thereof, to improve the problems referred to above.
The present invention is achieved in that
This steel truss operating platform of encorbelmenting comprises the steel truss of multiple strip, described steel truss is obliquely installed and bottom is removably connected on the substructure beam of installation floor, top is removably connected on the superstructure beam of installation floor, multiple steel truss interval thus jointly form braced structures in the horizontal direction, described braced structures is provided with multiple step plate, multiple step plate forms the step for supplying constructor upper and lower jointly, and the edge of described step is provided with the enclosing structure for ensureing constructor's personal safety.
In the present embodiment, described steel truss comprises four chord members, line between the cross section of four chord members is rectangle, the region that four chord members surround is provided with multiple v-shaped structure unit, multiple v-shaped structure unit is arranged continuously along the length direction of described chord member, each v-shaped structure unit includes two rectangle frames, and four summits of described rectangle frame are welded with four chord members respectively.
It is evenly simple that the object arranging steel truss is like this that it has layout, and be convenient to processing assembling, the feature that this structure stress is effective simultaneously, can meet the requirement of this operating platform working load well.
In the present embodiment, described rectangle frame is made up of two web members and two cross bars, and the two ends of described web member are welded on two adjacent chord members respectively, and the two ends of described cross bar are welded on two adjacent chord members respectively.
The object arranging rectangle frame is like this that its structure is simple, easy to process, effectively can ensure the structural stability of whole steel truss.
In the present embodiment, described chord member, web member and cross bar are steel pipe.
Adopt the object of steel pipe to be the mechanical strength that both can ensure whole steel truss, have and can reduce costs, alleviate deadweight.
In the present embodiment, substructure beam is provided with installation i iron, the bottom of described steel truss is connected with installation i iron by screw bolt and nut.
The object of such installation steel truss bottom is that its structure is simple, and mounting or dismounting are convenient, connects reliable, effectively can ensure the stability that steel truss is installed.
In the present embodiment, substructure beam is also provided with multiple reinforcement i iron, multiple reinforcement i iron props up installation i iron respectively.
The installation stability that the object strengthening i iron is to improve further steel truss bottom is set.Multiple reinforcement i iron can apply pressure to installation i iron in all directions, effectively prevents from installing i iron along substructure beam upper surface slide, thus greatly strengthens the bonding strength of steel truss bottom.
In the present embodiment, superstructure beam is provided with U-shaped reinforcing bar, described U-shaped reinforcing bar handstand arranges and two ends are embedded on superstructure beam in advance, and the top of described steel truss is by wire rope and U-shaped bar connecting.
The object on the top of such mounting rod truss is that its structure is simple, and mounting or dismounting are convenient, connects reliable, effectively can ensure the stability that steel truss is installed
In the present embodiment, the position of the corresponding wire rope in superstructure beam edge is provided with the lumps of wood.
The object arranging the lumps of wood is to protect wire rope.
In the present embodiment, described braced structures is provided with the skeleton be welded by many root architectures i iron, described step plate is bolted on skeleton.
The object arranging step plate is like this that Stability Analysis of Structures is reliable, construction simple and fast, can handled easily personnel movement on the operational platform and operation greatly.
This steel truss operating platform construction method of encorbelmenting comprises the following steps:
S1: determine the construction load on platform and requirement of strength;
S2: make the steel truss met the demands;
S3: utilize tower crane to lift many steel trusss, complete the installation of braced structures, then complete the installation of step and enclosing structure;
S4: carry out safety detection after stage+module completes.
The invention has the beneficial effects as follows:
This steel truss is encorbelmented, and to have structure simple, with low cost for operating platform, the reliable and feature that safety is high of Stability Analysis of Structures, and the encorbelment construction method of operating platform of this steel truss has simple to operate, and the feature of saving of work and time, effectively compensate for the defect of prior art.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, be briefly described to the accompanying drawing used required in embodiment below, be to be understood that, the following drawings illustrate only some embodiment of the present invention, therefore the restriction to scope should be counted as, for those of ordinary skill in the art, under the prerequisite not paying creative work, other relevant accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 to encorbelment the scheme of installation of operating platform for steel truss that the embodiment of the present invention provides;
Fig. 2 to encorbelment the structural representation of operating platform for steel truss that the embodiment of the present invention provides;
The structural representation of the steel truss that Fig. 3 provides for the embodiment of the present invention;
The elevation of the steel truss that Fig. 4 provides for the embodiment of the present invention;
The top view of the steel truss that Fig. 5 provides for the embodiment of the present invention;
The scheme of installation of the steel truss bottom that Fig. 6 provides for the embodiment of the present invention;
The scheme of installation on the steel truss top that Fig. 7 provides for the embodiment of the present invention.
Reference numeral gathers:
Steel truss 100; Chord member 150; Step plate 200;
Enclosing structure 300; Wire rope 400;
I iron 500 is installed; Strengthen i iron 600;
U-shaped reinforcing bar 700.
Detailed description of the invention
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.The assembly of the embodiment of the present invention describing and illustrate in usual accompanying drawing herein can be arranged with various different configuration and design.Therefore, below to the detailed description of the embodiments of the invention provided in the accompanying drawings and the claimed scope of the present invention of not intended to be limiting, but selected embodiment of the present invention is only represented.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
In describing the invention, it should be noted that, term " " center ", " on ", D score, " left side ", " right side ", " vertically ", " level ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, or this invention product orientation of usually putting or position relationship when using, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.In addition, term " first ", " second ", " the 3rd " etc. only for distinguishing description, and can not be interpreted as instruction or hint relative importance.
In describing the invention, also it should be noted that, unless otherwise clearly defined and limited, term " setting ", " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
With reference to Fig. 1-7, this steel truss operating platform of encorbelmenting comprises the steel truss 100 of multiple strip, described steel truss 100 is obliquely installed and bottom is removably connected on the substructure beam of installation floor, top is removably connected on the superstructure beam of installation floor, multiple steel truss 100 interval thus jointly form braced structures in the horizontal direction, described braced structures is provided with multiple step plate 200, multiple step plate 200 is jointly formed and is used for for the upper and lower step of constructor, the edge of described step is provided with the enclosing structure 300 for ensureing constructor's personal safety.
Wherein, described steel truss 100 refers to the truss industry and the roof structure crane girder of civilian construction, bridge and hydraulic gate etc. that manufacture with steel, Common Steels truss 100 as main supporting member, conventional three, four sides or multiaspect plane frame composition; Substructure beam and upper strata mechanism beam default in the mounting structure installed on outer wall of floor wall, and what both formed that this steel truss encorbelments operating platform one on the other respectively builds basis; Multiple step plate 200 vertically with horizontal direction uniform intervals device, thus convenient construction personnel trample; Described enclosing structure 300 is basic support with many steel pipes, is densely covered with safety net between steel pipe, and the height of safety net is not less than 1.6m, thus effectively ensures the safety of constructor, reduces the fear of constructor.
The operating platform of existing Long-span Cantilever structure is built by scaffold or i iron of encorbelmenting mostly, not only builds cost high, inconvenient operation, and there is serious safety problem.For above-mentioned situation, operating platform that the technical program provides adopts steel truss 100 to build for supporting member inclination, two ends removably connect with the substructure beam and superstructure beam of installing floor respectively, and whole platform building is all very convenient with dismounting, and safety and reliability is all higher.
In the present embodiment, described steel truss 100 comprises four chord members 150, line between the cross section of four chord members 150 is rectangle, the region that four chord members 150 surround is provided with multiple v-shaped structure unit, multiple v-shaped structure unit is arranged continuously along the length direction of described chord member 150, each v-shaped structure unit includes two rectangle frames, and four summits of described rectangle frame are welded with four chord members 150 respectively.
Wherein, the shape that four chord members 150 surround is truncated rectangular pyramids shape, and described cross section refers to the plane perpendicular to truncated rectangular pyramids central axis; Two rectangle frame one minor faces of each v-shaped structure unit overlap, another minor face mutually away from, the angle of two rectangle frames is 30 °-60 °, to ensure the mechanical property of steel truss 100; Connecting by linking bar between the chord member 150 of eminence on multiple steel truss 100, described in link bar and have many, the length direction uniform intervals along described steel truss 100 is arranged, described in link bar for selecting diameter 48mm, the steel pipe of wall thickness 3mm.
It is evenly simple that the object arranging steel truss 100 is like this that it has layout, and be convenient to processing assembling, the feature that this structure stress is effective simultaneously, can meet the requirement of this operating platform working load well.
In the present embodiment, described rectangle frame is made up of two web members and two cross bars, and the two ends of described web member are welded on two adjacent chord members 150 respectively, and the two ends of described cross bar are welded on two adjacent chord members 150 respectively.
Wherein, two web members are parallel to each other and the axis of the truncated rectangular pyramids surrounded relative to four chord members 150 tilts; ; Two cross bars are also parallel to each other and the axis of the truncated rectangular pyramids surrounded perpendicular to four chord members 150; Described web member is for connecting two different chord members 150 of height and position, and cross bar is for connecting two identical chord members 150 of height and position.
The object arranging rectangle frame is like this that its structure is simple, easy to process, effectively can ensure the structural stability of whole steel truss 100.
In the present embodiment, described chord member 150, web member and cross bar are steel pipe.
Wherein, diameter 60mm selected by described chord member 150, the steel pipe of wall thickness 3mm; Diameter 50mm all selected by described web member and cross bar, the steel pipe of wall thickness 3mm.
Adopt the object of steel pipe to be the mechanical strength that both can ensure whole steel truss 100, have and can reduce costs, alleviate deadweight.
In the present embodiment, substructure beam is provided with and installs i iron 500, the bottom of described steel truss 100 is connected with installation i iron 500 by screw bolt and nut.
Wherein, described substructure beam is embedded with expansion bolt, described installation i iron 500 is provided with installing hole, described expansion bolt is through described installing hole and lock has nut, and each expansion bolt can lock two nuts, to ensure the stability connected.
The object of such installation steel truss 100 bottom is that its structure is simple, and mounting or dismounting are convenient, connects reliable, effectively can ensure the stability that steel truss 100 is installed.
In the present embodiment, substructure beam is also provided with multiple reinforcement i iron 600, multiple reinforcement i iron 600 props up respectively installs i iron 500.
Wherein, described reinforcement i iron 600 is also installed on substructure beam by fat bolt, and concrete mounting means is identical with installation i iron 500; The sidewall of multiple reinforcement i iron 600 props up the end and both sides of installing i iron 500 respectively.
The installation stability that the object strengthening i iron 600 is to improve further steel truss 100 bottom is set.Multiple reinforcement i iron 600 can apply pressure to installation i iron 500 in all directions, effectively prevents from installing i iron 500 along substructure beam upper surface slide, thus greatly strengthens the bonding strength of steel truss 100 bottom.
In the present embodiment, superstructure beam is provided with U-shaped reinforcing bar 700, described U-shaped reinforcing bar 700 handstand arranges and two ends are embedded on superstructure beam in advance, and the top of described steel truss 100 is connected with U-shaped reinforcing bar 700 by wire rope 400.
Wherein, described U-shaped reinforcing bar 700 is the linear pattern reinforcing bar repeatedly bending forming of 22mm by a diameter, good mechanical performance; Wire rope 400 need be equipped with two groups.One group is main rope 400, and for direct bearing load (intensity must meet so load requirement), another group is secondary wire rope 400, as safety rope; Then the region that one end of described wire rope 400 surrounds through U-shaped reinforcing bar 700 is fixed by wire clips, and the other end is passed the through hole on steel truss 100 top and connected by wire clips.
The object on the top of such mounting rod truss is that its structure is simple, and mounting or dismounting are convenient, connects reliable, effectively can ensure the stability that steel truss 100 is installed
In the present embodiment, the position of the corresponding wire rope 400 in superstructure beam edge is provided with the lumps of wood.
Wherein, the described lumps of wood is square wooden unit, and the seamed edge place of described wooden unit contact wire rope 400 is provided with rounding.
The object arranging the lumps of wood is to protect wire rope 400.One end that described wire rope 400 connects with U-shaped reinforcing bar 700 inevitably contacts with the outermost seamed edge of superstructure beam, and the seamed edge of superstructure beam has certain intensity, sharper, if wire rope 400 is in contact with it friction for a long time and is easily worn or cuts, and arranging of the lumps of wood effectively can intercept superstructure beam and wire rope 400, prevent both directly contacts, avoid the wearing and tearing of wire rope 400.
In the present embodiment, described braced structures is provided with the skeleton be welded by many root architectures i iron, described step plate 200 is bolted on skeleton.
Wherein, described skeleton comprises horizontal mounting portion and vertical installation portion, and described step plate 200 is removably connected on described horizontal mounting portion by bolt and tramples for constructor; Described vertical installation portion is provided with baffle plate of marking time, described in baffle plate of marking time be plank, for closing the vertical space between adjacent two step plates 200.
The object arranging step plate 200 is like this that Stability Analysis of Structures is reliable, construction simple and fast, can handled easily personnel movement on the operational platform and operation greatly.
This steel truss operating platform construction method of encorbelmenting comprises the following steps:
S1: determine the construction load on platform and requirement of strength; S2: make the steel truss 100 met the demands; S3: utilize tower crane to lift many steel trusss 100, complete the installation of braced structures, then complete the installation of step and enclosing structure 300; S4: carry out safety detection after stage+module completes.
Wherein, described working load comprises load, wind load, component self load that all workman's gravity loads, material requested and instrument produce.Not only to consider dead load of constructing when load calculates, more should consider each dynamic load (as wind load, the impact load etc. stacking material generation) and least favorable Load Combination; First with professional software, force analysis is carried out to it before making steel truss 100, calculate the resistance to overturning of steel truss 100, determine suitable making material; Safety detection mainly carries out load loading experiment according to country and industry standard, and experimental period is not less than 24h, and after satisfying condition, constructor just can enter platform and carry out associative operation.
This steel truss is encorbelmented, and to have structure simple, with low cost for operating platform, the reliable and feature that safety is high of Stability Analysis of Structures, and the encorbelment construction method of operating platform of this steel truss has simple to operate, and the feature of saving of work and time, effectively compensate for the defect of prior art.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a steel truss is encorbelmented operating platform, it is characterized in that, comprise the steel truss of multiple strip, described steel truss is obliquely installed and bottom is removably connected on the substructure beam of installation floor, top is removably connected on the superstructure beam of installation floor, multiple steel truss interval thus jointly form braced structures in the horizontal direction, described braced structures is provided with multiple step plate, multiple step plate forms the step for supplying constructor upper and lower jointly, and the edge of described step is provided with the enclosing structure for ensureing constructor's personal safety.
2. steel truss according to claim 1 is encorbelmented operating platform, it is characterized in that, described steel truss comprises four chord members, line between the cross section of four chord members is rectangle, the region that four chord members surround is provided with multiple v-shaped structure unit, multiple v-shaped structure unit is arranged continuously along the length direction of described chord member, and each v-shaped structure unit includes two rectangle frames, and four summits of described rectangle frame are welded with four chord members respectively.
3. steel truss according to claim 2 is encorbelmented operating platform, it is characterized in that, described rectangle frame is made up of two web members and two cross bars, and the two ends of described web member are welded on two adjacent chord members respectively, and the two ends of described cross bar are welded on two adjacent chord members respectively.
4. steel truss according to claim 3 is encorbelmented operating platform, and it is characterized in that, described chord member, web member and cross bar are steel pipe.
5. steel truss according to claim 1 is encorbelmented operating platform, it is characterized in that, substructure beam is provided with installation i iron, and the bottom of described steel truss is connected with installation i iron by screw bolt and nut.
6. steel truss according to claim 5 is encorbelmented operating platform, and it is characterized in that, substructure beam is also provided with multiple reinforcement i iron, multiple reinforcement i iron props up installation i iron respectively.
7. steel truss according to claim 1 is encorbelmented operating platform, it is characterized in that, superstructure beam is provided with U-shaped reinforcing bar, and described U-shaped reinforcing bar handstand arranges and two ends are embedded on superstructure beam in advance, and the top of described steel truss is by wire rope and U-shaped bar connecting.
8. steel truss according to claim 7 is encorbelmented operating platform, it is characterized in that, the position of the corresponding wire rope in superstructure beam edge is provided with the lumps of wood.
9. steel truss according to claim 1 is encorbelmented operating platform, and it is characterized in that, described braced structures is provided with the skeleton be welded by many root architectures i iron, described step plate is bolted on skeleton.
10. steel truss according to claim 1 is encorbelmented operating platform construction method, it is characterized in that, comprises the following steps:
S1: determine the construction load on platform and requirement of strength;
S2: make the steel truss met the demands;
S3: utilize tower crane to lift many steel trusss, complete the installation of braced structures, then complete the installation of step and enclosing structure;
S4: carry out safety detection after stage+module completes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510504243.3A CN105178583A (en) | 2015-08-17 | 2015-08-17 | Steel truss overhung operation platform and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510504243.3A CN105178583A (en) | 2015-08-17 | 2015-08-17 | Steel truss overhung operation platform and construction method thereof |
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| CN105178583A true CN105178583A (en) | 2015-12-23 |
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| CN201510504243.3A Pending CN105178583A (en) | 2015-08-17 | 2015-08-17 | Steel truss overhung operation platform and construction method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105625576A (en) * | 2015-12-29 | 2016-06-01 | 关海涛 | Series-tied-arch-type prestressed steel structure cantilever system |
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| CN103255907A (en) * | 2013-05-17 | 2013-08-21 | 山东兴华建设集团有限公司 | Overhanging type scaffold |
| CN203462764U (en) * | 2013-08-20 | 2014-03-05 | 浙江精工钢结构集团有限公司 | Large cantilever promotion counter-force frame |
| CN203961239U (en) * | 2014-07-29 | 2014-11-26 | 江苏省苏中建设集团股份有限公司 | High-altitude overhanging awning construction operation platform |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| GB2457236A (en) * | 2008-02-06 | 2009-08-12 | Xena Systems Ltd | Load Transportation System |
| CN103255907A (en) * | 2013-05-17 | 2013-08-21 | 山东兴华建设集团有限公司 | Overhanging type scaffold |
| CN203462764U (en) * | 2013-08-20 | 2014-03-05 | 浙江精工钢结构集团有限公司 | Large cantilever promotion counter-force frame |
| CN203961239U (en) * | 2014-07-29 | 2014-11-26 | 江苏省苏中建设集团股份有限公司 | High-altitude overhanging awning construction operation platform |
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| CN105625576A (en) * | 2015-12-29 | 2016-06-01 | 关海涛 | Series-tied-arch-type prestressed steel structure cantilever system |
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Application publication date: 20151223 |