CN112814166A - Large-span overhanging tensile counterweight roof structure and construction method thereof - Google Patents
Large-span overhanging tensile counterweight roof structure and construction method thereof Download PDFInfo
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- CN112814166A CN112814166A CN202110191422.1A CN202110191422A CN112814166A CN 112814166 A CN112814166 A CN 112814166A CN 202110191422 A CN202110191422 A CN 202110191422A CN 112814166 A CN112814166 A CN 112814166A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/342—Structures covering a large free area, whether open-sided or not, e.g. hangars, halls
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B7/00—Roofs; Roof construction with regard to insulation
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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
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Abstract
The invention relates to a large-span overhanging tensile counterweight roof structure and a construction method thereof, wherein the method comprises the following steps: installing heavy beams and counterweight columns on the secondary roof layer, and horizontally limiting and connecting the counterweight columns through a temporary connecting structure; arranging a temporary supporting structure on the lower layer structure to support the overhanging end of the counterweight beam; fixedly connecting the outer ring beam to the overhanging end of the counterweight beam; vertically connecting a guy cable between the lower layer structure and the outer ring beam, stretching the guy cable when the guy cable is connected, and fixedly connecting the guy cable with the corresponding outer ring beam after stretching; and fixedly connecting the counterweight column with the secondary roof layer, and dismantling the temporary connecting structure and the temporary supporting structure, thereby completing construction of the counterweight roof structure. The invention utilizes the inhaul cable to form a tensile force transmission structure on the periphery of the counterweight roof structure, thereby improving the safety and stability of the overhanging part. In the installation, the horizontal spacing connection of counter weight post can avoid the cable to cause the stress accumulation of the whole deformation of roofing when stretch-draw.
Description
Technical Field
The invention relates to the field of building construction engineering, in particular to a large-span overhanging tensile counterweight roof structure and a construction method thereof.
Background
The construction of steel construction roofing is mostly from upwards installing gradually down, supports whole roofing structure through the structure post, utilizes the structure post to transmit roofing structure's atress for building subject downwards. To the roofing structure that needs to set up the position of encorbelmenting, for improving roofing structure's stability, should increase the regional counter weight in roofing structure middle part, let the middle part region have higher tensile ability to support the position of encorbelmenting in the outside, the regional steel volume of using of middle part will increase like this, thereby has increaseed construction cost. Because the overhanging part is only supported and connected by the middle area, if the welding point is broken due to stress, the overhanging part can fall off, and certain potential safety hazards exist.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a large-span overhanging tensile type counterweight roof structure and a construction method thereof, and solves the problems that the cost is increased due to the increase of steel consumption because of the addition of counterweights in the conventional steel structure roof, and potential safety hazards exist because overhanging parts are easy to fall off.
The technical scheme for realizing the purpose is as follows:
the invention provides a construction method of a large-span overhanging tensile counterweight roof structure, which comprises the following steps:
after the construction of the secondary roof layer is completed, providing a counterweight beam and a counterweight column, installing the counterweight beam and the counterweight column on the secondary roof layer, realizing horizontal limit connection between the counterweight column and the secondary roof layer through a temporary connection structure, fixedly connecting one end of the counterweight beam with the corresponding counterweight column, and extending the other end outwards to form an overhanging end;
arranging a temporary supporting structure on the lower layer structure corresponding to the overhanging end, and supporting the overhanging end through the temporary supporting structure;
providing an outer ring beam, fixedly connecting the outer ring beam to the overhanging end of the counterweight beam, connecting the counterweight beam together through the outer ring beam, connecting the outer ring beam end to form a closed annular structure, and supporting the outer ring beam through a temporary supporting structure;
providing inhaul cables, arranging the inhaul cables at intervals along the annular structure, vertically connecting the inhaul cables between the lower-layer structure and the outer ring beam, tensioning the inhaul cables when the inhaul cables are connected, and fixedly connecting the inhaul cables with the corresponding outer ring beam after tensioning; and
and fixedly connecting the counterweight column with the secondary roof layer, and dismantling the temporary connecting structure and the temporary supporting structure, thereby completing construction of a counterweight roof structure.
According to the invention, the guy cable is designed at the overhanging part of the counterweight roof structure, and the guy cable is utilized to form a tensile force transmission structure at the periphery of the counterweight roof structure, so that the safety and stability of the overhanging part are improved. In the installation process, the counterweight column is firstly in place and aligned, the horizontal displacement of the counterweight column is limited through the temporary connecting structure, the position of the counterweight column in the vertical direction is not limited, and the stress accumulation of the integral deformation of the roof caused by the stay cable in the tensioning process can be avoided. After the inhaul cable is installed, the counterweight column and the secondary roof layer are fixedly connected and are used as an integral counterweight together with the secondary roof layer, so that the steel consumption of the counterweight roof structure can be reduced, and the construction cost is reduced.
The construction method of the large-span overhanging tensile type counterweight roof structure is further improved in that the construction method further comprises the following steps:
arranging a partition plate in the counterweight beam, wherein the arrangement position of the partition plate is positioned above the edge of the secondary roof layer, and the partition plate divides the interior of the counterweight beam into a first closed space and a second closed space, wherein the first closed space is positioned above the secondary roof layer, and the second closed space is positioned at the outer side of the secondary roof layer;
and pouring concrete into the first closed space to form a concrete structure.
The construction method of the large-span overhanging tensile type counterweight roof structure is further improved in that when the heavy beam and the counterweight column are assembled, the construction method further comprises the following steps:
providing a counterweight plate, wherein a column connecting end and a beam connecting end are arranged on the provided counterweight plate, and the counterweight plate is connected to a counterweight column through a column connecting end in a supporting manner;
and when the counterweight beam is assembled, the end part of the counterweight beam is connected to the beam connecting end.
The construction method of the large-span overhanging tensile type counterweight roof structure is further improved in that after the stay cables are installed, the support columns are provided, the bottoms of the support columns are erected on the lower-layer structure, and the tops of the support columns are fixedly connected with the corresponding parts of the outer ring beams.
The construction method of the large-span overhanging tensile type counterweight roof structure is further improved in that the construction method further comprises the following steps:
providing inner ring beams, and connecting the inner ring beams between the counterweight beams in a supporting manner, wherein the arrangement positions of the inner ring beams correspond to the position of the edge of the secondary roof layer, and the inner ring beams surround to form a closed structure;
and providing a structural column, and supporting and connecting the structural column between the inner ring beam and the secondary roof layer.
The invention also provides a large-span overhanging tensile type counterweight roof structure which is arranged on the secondary roof layer, and the counterweight roof structure comprises:
the counterweight column is arranged above the secondary roof layer, and the counterweight column is horizontally limited and connected with the secondary roof layer through a temporary connecting structure;
one end of the counterweight beam is fixedly connected with the counterweight column, and the other end of the counterweight beam extends outwards to form an overhanging end;
the outer ring beams are connected to the overhanging ends of the counterweight beams, the counterweight beams are connected together through the outer ring beams, and the outer ring beams are connected end to form a closed annular structure;
a temporary supporting structure arranged on a lower layer structure corresponding to the overhanging end is supported, and the outer ring beam and the overhanging end are supported through the temporary supporting structure; and
vertical connection is in substructure with cable between the outer ring roof beam, the cable is followed the loop configuration interval sets up, the cable is through stretch-draw back and the outer ring roof beam fixed connection that corresponds after the cable installation, fixed connection the counter weight post with inferior roof layer is demolishd interim connection structure with interim bearing structure.
The large-span overhanging tensile type counterweight roof structure is further improved in that a partition plate is arranged in the counterweight beam, a first closed space and a second closed space are formed in the counterweight beam in a partitioning mode through the partition plate, the first closed space is located above the secondary roof layer, and the second closed space is located on the outer side of the secondary roof layer;
and a concrete structure is formed in the first closed space in a pouring mode.
The large-span overhanging tensile type counterweight roof structure is further improved in that the large-span overhanging tensile type counterweight roof structure further comprises a counterweight disc, wherein a column connecting end and a beam connecting end are arranged on the counterweight disc, and the column connecting end is connected to the counterweight column in a supporting manner;
the counterweight beam is fixedly connected with the beam connecting end.
The large-span overhanging tensile type counterweight roof structure is further improved by further comprising a support column which is supported and connected between the lower layer structure and the outer ring beam.
The large-span overhanging tensile type counterweight roof structure is further improved in that the large-span overhanging tensile type counterweight roof structure further comprises an inner ring beam and a structural column, wherein the inner ring beam is connected between the counterweight beams in a supporting mode, and the structural column is connected between the inner ring beam and the secondary roof in a supporting mode;
the arrangement position of the inner ring beam corresponds to the position of the edge of the secondary roof, and the inner ring beam is enclosed to form a closed structure.
Drawings
Fig. 1 is a schematic structural view of the large-span overhanging tensile-type counterweight roof structure installed on a building main body.
Fig. 2 is a top view of the large span overhanging tensile-type weighted roof structure of the present invention.
Fig. 3 is a top view of the weight plate in the large span overhanging tensile-type counterweight roof structure of the present invention.
Fig. 4 is a side cross-sectional view of a weight plate in the large span overhanging tensile-type weighted roof structure of the present invention.
Fig. 5 is a flow chart of the construction method of the large-span overhanging tensile-type counterweight roof structure of the invention.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
Referring to fig. 1, the invention provides a large-span overhanging tensile type counterweight roof structure and a construction method thereof, wherein a stay cable is arranged on the periphery of the counterweight roof structure, a tensile force transmission form is formed by utilizing the stay cable, the installation of a stay cable type outer curtain wall structure system is realized, the safety degree is greatly improved, and a secondary roof layer is used as an integral counterweight, so that the steel consumption and the construction energy consumption of the roof layer are reduced. The large-span overhanging tensile type counterweight roof structure and the construction method thereof are explained below with reference to the attached drawings.
Referring to fig. 1, a schematic structural diagram of the large-span overhanging tensile-type counterweight roof structure of the invention installed on a building main body is shown. Referring to fig. 2, a top view of the large span overhanging tensile-type weighted roofing structure of the present invention is shown. The large-span overhanging tensile-type weighted roofing structure of the present invention will be described with reference to fig. 1 and 2.
As shown in fig. 1 and 2, the large-span overhanging tensile-type counterweight roof structure 20 of the present invention is disposed on the secondary roof deck 11, and the counterweight roof structure 20 includes counterweight posts 21, counterweight beams 22, outer ring beams 23, temporary support structures, and guy cables, where the counterweight posts 21 are disposed on the secondary roof deck 11, and the counterweight posts 21 and the secondary roof deck 11 are connected by a temporary connection structure to achieve horizontal spacing, that is, the counterweight posts 21 cannot be displaced in the horizontal direction, and can be displaced in the vertical direction. One end of the counterweight beam 22 is fixedly connected with the counterweight column 21, the other end of the counterweight beam 22 extends outwards to form an overhanging end 221, and the overhanging end 221 is positioned outside the secondary roof layer 11. The outer ring beam 23 is connected to the overhanging end 221 of the counterweight beam 22, the counterweight beam 22 is connected together through the outer ring beam 23, the outer ring beam 23 is connected end to form a closed annular structure, the outer ring beams 23 are multiple and arranged at the outer edge of the counterweight roof structure 20, and the counterweight beam 22 is connected together through the outer ring beam 23 to form the counterweight roof structure 20. When setting up outer gird 23, set up interim bearing structure on corresponding understructure 12 of encorbelmenting end 221, utilize interim bearing structure to support outer gird 23 and the end 221 of encorbelmenting, realize horizontal spacing connection through interim connection structure between counter weight post 21 and inferior roofing layer 11, the stability of this connection is not enough, so this counter weight post 21 can't provide firm stable holding power for counter weight beam 22 and outer gird 23, for the security and the stability that improve the installation, adopt to set up interim bearing structure on understructure 12 and support and encorbelment end 221 and outer gird 23. The cable is vertically connected between the lower layer structure 12 and the outer ring beam 23, the cable is arranged at intervals along the annular structure, the cable is fixedly connected with the corresponding outer ring beam 23 after being tensioned, and after the cable is installed, the temporary connecting structure and the temporary supporting structure are detached by fixedly connecting the counterweight column 21 with the secondary roof layer 11.
The counterweight column is horizontally limited and connected with the secondary roof layer through the temporary connecting structure when the counterweight column is installed, namely, the displacement of the counterweight column in the horizontal direction is limited through the temporary connecting structure, the displacement of the counterweight column in the vertical direction is not limited, the counterweight column is firstly in place and aligned but is not fixedly connected, so that when a guy cable is installed and the guy cable is tensioned, the structural deformation of a counterweight roof structure can be avoided, and the integral deformation stress accumulation of the roof caused by the tensioning of the edge guy cable is avoided. After the inhaul cable is installed, the balance weight column is fixedly connected with the secondary roof layer, and the whole balance weight is reinforced by means of the secondary roof layer, so that the steel consumption of the balance weight roof structure is reduced, and the construction cost is saved.
In an embodiment of the present invention, a partition plate is disposed in the counterweight beam 22, and a first enclosed space and a second enclosed space are partitioned inside the counterweight beam 22 by the partition plate, where the first enclosed space is located above the secondary roof covering 11, the second enclosed space is located outside the secondary roof covering 11, that is, the second enclosed space is located corresponding to an overhanging portion of the counterweight beam 22, and a concrete structure is formed by pouring in the first enclosed space.
The pouring opening is reserved on the counterweight beam 22, after the outer ring beam 23 is installed, fine aggregate concrete is poured into the pouring opening, so that a concrete structure is formed in the first closed space, the concrete structure is arranged in the counterweight beam 22 to form a steel concrete structure, the counterweight of the counterweight beam 22 is increased, and the overall stability of the counterweight roof structure is improved.
In one embodiment of the present invention, as shown in fig. 2 to 4, the weighted roof structure 20 of the present invention further includes a weight plate 24, the weight plate 24 is provided with a column connecting end 241 and a beam connecting end 242, and as shown in fig. 1, the column connecting end 241 is supported and connected to the weight column 21, and the weighted beam 22 is fixedly connected to the beam connecting end 242.
Preferably, there are a plurality of beam connection ends 242 on the weight plate 24, and they are arranged at intervals along the periphery of the weight plate 24, and the weight plate forms a symmetrical structure, so that the whole structure of the weighted roof is integrally formed into a structural system which is symmetrical by using the weight plate as a local core, and the stability of the structure is improved. The weight plate 24 further comprises a column body, the periphery of the column body is fixedly connected with a plurality of beam connecting ends 242, the bottom of the column body is fixedly connected with a column connecting end 241, the shape and the size of the column connecting end 241 are matched with those of the weight column 21, and the shape and the size of the beam connecting end 242 are matched with those of the weight beam 22. When the weight plate 24 is installed, the weight column 21 is firstly positioned and aligned, the weight column 21 is horizontally limited and connected with a column base on the secondary roof layer 11 through a temporary connecting structure, then the weight plate 24 is installed on the weight column 21, a column connecting end 241 of the weight plate 24 is fixedly connected with the weight column 21 through a connecting lug plate 2411 arranged at the bottom, and after the weight plate 24 is installed and fixed, the weight beam 22 is connected to a beam connecting end 242 of the weight plate 24, so that a weight roof structure is formed.
In a specific embodiment of the invention, the temporary connection structure comprises a first limiting ear plate fixedly connected to the secondary roof layer 11 and a second limiting ear plate fixedly connected to the counterweight column 21 and arranged corresponding to the first limiting ear plate, vertical adjusting holes are correspondingly arranged on the first limiting ear plate and the second limiting ear plate, the first limiting ear plate and the second limiting ear plate are attached to each other and connected through a connecting piece penetrating through the vertical adjusting holes, and the connecting piece can move up and down in the vertical adjusting holes for adjustment so as to realize horizontal limiting connection. First spacing otic placode and the spacing otic placode of second are equipped with a plurality ofly, and the periphery of the column foot of inferior roofing layer is located to first spacing otic placode interval, and the periphery of the bottom of counterweight column 21 is located to the spacing otic placode of second, realizes the restriction to the horizontal direction displacement of counterweight column 21 through first spacing otic placode and the spacing otic placode of second, but does not restrict the displacement of the vertical direction of counterweight column 21.
In one embodiment of the invention, as shown in fig. 1 and 2, the weighted roofing structure 20 further includes inner ring girders 26 supportingly connected between the weight girders 22 and structural studs 252 supportingly connected between the inner ring girders 26 and the secondary roofing 11, the inner ring girders 26 being disposed at positions corresponding to the position of the edge of the secondary roofing 11, the inner ring girders 26 enclosing to form a closed structure. The region that the interior collar tie roof beam 26 encloses to close and forms is the counter weight region, shape and size and the shape and the size looks adaptation of time roof layer 11 in this counter weight region, the outside of interior collar tie roof beam 26 and the inboard of outer collar tie roof beam 23 are regional for encorbelmenting, through setting up the counterweight disk 24 in the counter weight region, reliable and stable counter weight core is realized to counter weight roof beam 22 and counter weight post 21, the setting of interior collar tie roof beam 26 connects into whole with counter weight roof beam 22, the overall stability of counter weight core has been improved, can provide reliable support for encorbelmenting the region, the degree of safety and the stability of counter weight roofing structure are improved.
When the inner ring beam 26 is installed, the structural column 252 is temporarily fixed, the displacement of the structural column 252 in the horizontal direction is limited, the displacement of the structural column 252 in the vertical direction is not limited, and after the cable is installed, the structural column 252 is fixed.
In one embodiment of the invention, as shown in FIG. 1, the weighted roof structure 20 further includes support posts 251 that are supportingly connected between the understructure 12 and the outer ring beam 23.
The ring-shaped structure formed by connecting the outer ring beams 23 is a hexagon, the hexagon comprises three long sides and three short sides, the support columns 251 are arranged at the three short sides in an erected mode, the lower-layer structure 12 is a structural beam of a building main body corresponding to a floor, and the support columns 251 are arranged on the structural beam in an erected mode. Preferably, after the cable is installed, the supporting column 251 is arranged.
In an embodiment of the present invention, when the outer ring beam 23 is installed, the bracing beam 27 is disposed between the outer ring beam 23 and the counterweight beam 22, and the bracing beam 27 is obliquely supported and connected between the outer ring beam and the counterweight beam 22, so that the structural stability of the outer ring beam 23 and the counterweight beam 22 is improved by the bracing beam 27, and the integrity of the counterweight roof structure 20 is also improved.
Further, after the inner ring beam 26 is installed, a connection beam 28 is provided between the inner ring beam 27 and the outer ring beam 23, and the connection beam 28 is support-connected between the outer ring beam 23 and the inner ring beam 27.
There are a plurality of counterweight posts 21, one of which 21 is provided in the middle of the secondary roofing layer 11, the remaining counterweight posts 21 are provided at intervals along the edge of the secondary roofing layer 11, and a plurality of counterweight posts 21 are connected together by counterweight beams 22. As shown in fig. 2, four weight plates 24 are provided, one weight plate 24 is located in the middle of the weight region, the other three weight plates 24 are located near three short sides of the weight region, the weight beams 22 on the weight plates 24 are arranged in a scattering manner, the weight beams 22 are supported and connected between the corresponding weight plates 24, between the weight plates 24 and the inner ring beam 26, and between the weight plates 24 and the outer ring beam 23.
In the installation process of the counterweight roof structure, the counterweight plate and the counterweight column which are positioned in the middle are used as centers and are symmetrically installed from the center to the edge, and the internal counterweight and the external vertical surface inhaul cable are loaded and graded and carried out in times according to the tension of the structure and the counterweight calculation condition.
A plurality of lug plate connecting pieces 231 are arranged on the outer side of the outer ring beam, the lug plate connecting pieces 231 are used for connecting a guy cable, and the lug plate connecting pieces 231 are used as a tension point of the guy cable and a tension receiving end of the roof.
Through steel construction self counter weight, set up centrosymmetric steel construction counterweight disc structure in roofing plane core region, make whole roofing form and use the counterweight disc to be local core, the structural system of whole symmetry is convenient for be connected with inferior roofing layer.
The balance weight column at the bottom of the balance weight disc connects the balance weight roof structure with the secondary roof layer, the whole balance weight is strengthened by means of the secondary roof layer, the configuration column is in place and aligned in the construction period, the configuration column is fixed through the temporary connecting structure, the horizontal displacement of the configuration column is limited, the displacement of the configuration column in the vertical direction is not limited, and the integral deformation stress accumulation of the roof caused by the stretching of the edge guy cable is avoided. And after the tension of the inhaul cable on the edge of the roof is loaded in place and the deformation is stable, welding the counterweight column and the column foot of the secondary roof layer, and removing the limiting lug plate after welding.
The invention also provides a construction method of the large-span overhanging tensile type counterweight roof structure, which is explained below.
As shown in fig. 5, the construction method of the present invention includes the steps of:
step S101 is executed, after the construction of the secondary roof layer is completed, a counterweight beam and a counterweight column are provided, the counterweight beam and the counterweight column are installed on the secondary roof layer, the counterweight column and the secondary roof layer are in horizontal limit connection through a temporary connection structure, one end of the counterweight beam is fixedly connected with the corresponding counterweight column, and the other end of the counterweight beam extends outwards to form an overhanging end; the counterweight beam and the counterweight column are connected to form a support framework of the counterweight roof structure; then, step S102 is executed;
step S102 is executed, a temporary supporting structure is arranged on the lower layer structure corresponding to the overhanging end, and the overhanging end is supported through the temporary supporting structure; then, step S103 is executed;
step S103 is executed, an outer ring beam is provided, the outer ring beam is fixedly connected to the overhanging end of the counterweight beam, the counterweight beams are connected together through the outer ring beam, the outer ring beam is connected end to form a closed annular structure, and the outer ring beam is supported through a temporary support structure; then, step S104 is executed;
step S104 is executed, inhaul cables are provided, the inhaul cables are arranged at intervals along the annular structure and are vertically connected between the lower-layer structure and the outer ring beam, the inhaul cables are tensioned when being connected, and then the inhaul cables are fixedly connected with the corresponding outer ring beam after being tensioned; then, step S105 is executed;
and S105, fixedly connecting the counterweight column with the secondary roof layer, and dismantling the temporary connecting structure and the temporary supporting structure, thereby completing construction of the counterweight roof structure.
In a specific embodiment of the present invention, the construction method of the present invention further includes:
arranging a partition plate in the counterweight beam, wherein the arrangement position of the partition plate is positioned above the edge of the secondary roof layer, and dividing the interior of the counterweight beam into a first closed space and a second closed space through the partition plate, wherein the first closed space is positioned above the secondary roof layer, and the second closed space is positioned on the outer side of the secondary roof layer;
and pouring concrete into the first closed space to form a concrete structure.
The concrete is poured into the counterweight beam to form a steel-concrete structure, and the counterweight of the counterweight beam is increased, so that the overall stability of the counterweight roof structure can be improved.
In an embodiment of the present invention, when the counterweight beam and the counterweight column are installed, the method further includes:
providing a counterweight plate, wherein the provided counterweight plate is provided with a column connecting end and a beam connecting end, and the counterweight plate is connected to a counterweight column through a column connecting end in a supporting manner;
when the counterweight beam is assembled, the end part of the counterweight beam is connected to the beam connecting end.
As shown in fig. 2 to 4, when the weight beam is mounted on the weight plate, the weight beam is symmetrically mounted, and the number of the weight plates is also plural. The counterweight plates form a symmetrical structure, so that the whole counterweight roof structure integrally forms a structural system which is integrally symmetrical by taking the counterweight plates as local cores, and the stability of the structural system is improved.
In a specific embodiment of the invention, after the installation of the inhaul cable is completed, a support column is provided, the bottom of the support column is supported on the lower layer structure, and the top of the support column is fixedly connected with the corresponding part of the outer ring beam. Referring to fig. 1, the supporting columns 251 are supported and connected between the lower layer structure and the outer ring beam 23, the outer ring beam 23 is hexagonal and includes three long sides and three short sides, the short sides are connected between the long sides, and the supporting columns 251 are disposed at positions corresponding to the short sides.
In a specific embodiment of the present invention, the construction method of the present invention further includes:
providing inner ring beams, and connecting the inner ring beams between the counterweight beams in a supporting manner, wherein the arrangement positions of the inner ring beams correspond to the positions of the edges of the secondary roof layer, and the inner ring beams are enclosed to form a closed structure;
and providing a structural column, and connecting the structural column support between the inner ring beam and the secondary roof layer.
While the present invention has been described in detail and with reference to the embodiments thereof as illustrated in the accompanying drawings, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments are not to be interpreted as limiting, and the scope of the invention is to be determined by the appended claims.
Claims (10)
1. A construction method of a large-span overhanging tensile counterweight roof structure is characterized by comprising the following steps:
after the construction of the secondary roof layer is completed, providing a counterweight beam and a counterweight column, installing the counterweight beam and the counterweight column on the secondary roof layer, realizing horizontal limit connection between the counterweight column and the secondary roof layer through a temporary connection structure, fixedly connecting one end of the counterweight beam with the corresponding counterweight column, and extending the other end outwards to form an overhanging end;
arranging a temporary supporting structure on the lower layer structure corresponding to the overhanging end, and supporting the overhanging end through the temporary supporting structure;
providing an outer ring beam, fixedly connecting the outer ring beam to the overhanging end of the counterweight beam, connecting the counterweight beam together through the outer ring beam, connecting the outer ring beam end to form a closed annular structure, and supporting the outer ring beam through a temporary supporting structure;
providing inhaul cables, arranging the inhaul cables at intervals along the annular structure, vertically connecting the inhaul cables between the lower-layer structure and the outer ring beam, tensioning the inhaul cables when the inhaul cables are connected, and fixedly connecting the inhaul cables with the corresponding outer ring beam after tensioning; and
and fixedly connecting the counterweight column with the secondary roof layer, and dismantling the temporary connecting structure and the temporary supporting structure, thereby completing construction of a counterweight roof structure.
2. The method of constructing a large-span overhanging tensile-type weighted roofing structure of claim 1, further comprising:
arranging a partition plate in the counterweight beam, wherein the arrangement position of the partition plate is positioned above the edge of the secondary roof layer, and the partition plate divides the interior of the counterweight beam into a first closed space and a second closed space, wherein the first closed space is positioned above the secondary roof layer, and the second closed space is positioned at the outer side of the secondary roof layer;
and pouring concrete into the first closed space to form a concrete structure.
3. The method of constructing a large-span overhanging tensile-type weighted roofing structure of claim 1, wherein when installing the heavy beams and the weighted columns, further comprising:
providing a counterweight plate, wherein a column connecting end and a beam connecting end are arranged on the provided counterweight plate, and the counterweight plate is connected to a counterweight column through a column connecting end in a supporting manner;
and when the counterweight beam is assembled, the end part of the counterweight beam is connected to the beam connecting end.
4. The construction method of a large-span overhanging tensile-type counterweight roof structure as claimed in claim 1, wherein after the guy cables are installed, a support column is provided, the bottom of the support column is supported on the lower layer structure, and the top of the support column is fixedly connected with the corresponding part of the outer ring beam.
5. The method of constructing a large-span overhanging tensile-type weighted roofing structure of claim 1, further comprising:
providing inner ring beams, and connecting the inner ring beams between the counterweight beams in a supporting manner, wherein the arrangement positions of the inner ring beams correspond to the position of the edge of the secondary roof layer, and the inner ring beams surround to form a closed structure;
and providing a structural column, and supporting and connecting the structural column between the inner ring beam and the secondary roof layer.
6. The utility model provides a large-span tensile type counter weight roofing structure of encorbelmenting, locates on inferior roof covering, its characterized in that, counter weight roofing structure includes:
the counterweight column is arranged above the secondary roof layer, and the counterweight column is horizontally limited and connected with the secondary roof layer through a temporary connecting structure;
one end of the counterweight beam is fixedly connected with the counterweight column, and the other end of the counterweight beam extends outwards to form an overhanging end;
the outer ring beams are connected to the overhanging ends of the counterweight beams, the counterweight beams are connected together through the outer ring beams, and the outer ring beams are connected end to form a closed annular structure;
a temporary supporting structure arranged on a lower layer structure corresponding to the overhanging end is supported, and the outer ring beam and the overhanging end are supported through the temporary supporting structure; and
vertical connection is in substructure with cable between the outer ring roof beam, the cable is followed the loop configuration interval sets up, the cable is through stretch-draw back and the outer ring roof beam fixed connection that corresponds after the cable installation, fixed connection the counter weight post with inferior roof layer is demolishd interim connection structure with interim bearing structure.
7. The large-span overhanging tensile-type weighted roofing structure of claim 6, wherein a partition plate is provided in the weighted beam, and a first enclosed space and a second enclosed space are partitioned inside the weighted beam by the partition plate, wherein the first enclosed space is located above the secondary roofing layer, and the second enclosed space is located outside the secondary roofing layer;
and a concrete structure is formed in the first closed space in a pouring mode.
8. The large-span overhanging tensile-type weighted roofing structure of claim 6, further comprising a weight plate, wherein the weight plate is provided with a column connecting end and a beam connecting end, and the column connecting end is connected to the weight column in a supporting manner;
the counterweight beam is fixedly connected with the beam connecting end.
9. The large-span overhanging tensile-type weighted roofing structure of claim 6 further comprising a support post supportingly connected between the understructure and the outer ring beam.
10. The large-span overhanging tensile-type weighted roofing structure of claim 6, further comprising inner ring beams supportingly connected between the weight beams and structural columns supportingly connected between the inner ring beams and the secondary roofing;
the arrangement position of the inner ring beam corresponds to the position of the edge of the secondary roof, and the inner ring beam is enclosed to form a closed structure.
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|---|---|---|---|
| CN202110191422.1A CN112814166A (en) | 2021-02-19 | 2021-02-19 | Large-span overhanging tensile counterweight roof structure and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110191422.1A CN112814166A (en) | 2021-02-19 | 2021-02-19 | Large-span overhanging tensile counterweight roof structure and construction method thereof |
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| CN202110191422.1A Pending CN112814166A (en) | 2021-02-19 | 2021-02-19 | Large-span overhanging tensile counterweight roof structure and construction method thereof |
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