CN214574709U - Outdoor venue stand cantilever variable cross-section arc beam combination assembling connection structure - Google Patents
Outdoor venue stand cantilever variable cross-section arc beam combination assembling connection structure Download PDFInfo
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- CN214574709U CN214574709U CN202120360690.7U CN202120360690U CN214574709U CN 214574709 U CN214574709 U CN 214574709U CN 202120360690 U CN202120360690 U CN 202120360690U CN 214574709 U CN214574709 U CN 214574709U
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Abstract
The utility model discloses an outdoor place stand variable cross section arc roof beam combination of encorbelmenting is assembled connection structure includes that the unit is assembled to a plurality of steel construction, and every steel construction is assembled the unit and is included: the central support steel column is vertically arranged and is of a cylindrical structure; the cantilever variable cross-section box-type beams are radially arranged around the central support steel column at intervals, and the inner end parts of the cantilever variable cross-section box-type beams are respectively and fixedly connected with the upper part of the central support steel column; the outer end of each cantilever variable cross-section box-shaped beam is fixedly connected with the top of the central support steel column through the upper layer circular tube, and the outer end of each two adjacent cantilever variable cross-section box-shaped beams are fixedly connected through the upper layer circular tube.
Description
Technical Field
The utility model relates to a building construction technical field especially is about a connection structure is assembled in combination of outdoor place stand cantilever variable cross section arc roof beam.
Background
Many outdoor stadiums stands have adopted the arc gradual change cross-section box girder structural design of encorbelmenting at present, and its molding structure is novel pleasing to the eye, can satisfy the requirement of indoor outer air convection through stand penetrating system design all around and the ceiling moreover. But because arc gradual change cross-section box girder construction that encorbelments is mostly complicated special-shaped steel structure type to bring great construction degree of difficulty for the steel construction installation.
Patent CN02520017U discloses a stand variable cross section prestressing force formula of encorbelmenting book roof beam construction structures, it is including installing left and right row's pillar on the floor of lower floor the left row pillar top install left book roof beam the right row pillar top install right book roof beam the left and right book roof beam between the interval install many roof beams the roof beam on be connected with and see platen and upper floor, left and right book roof beam from the stand side and rise to connect by the decurrent section of encorbelmenting of striding, broken line section, transition broken line section, straight section in proper order and constitute left and right book roof beam in wear the bellows of prestressing steel. Adopt this structure to practice thrift steel, increase structural span, reduce the structure dead weight, improve service function, reduce concrete beam's vertical shear force and main tensile stress, simple structure, safe and reliable.
Patent CN204626642U discloses a structure of assembling of hyperbolic reducing steel structure cyclone, and the cyclone is installed on the curve arch, and the curve arch is the receipts limit component of steel sheet cyclone and with the lower extreme integral connection of cyclone, fixed roof is connected at the middle part of cyclone, the upper end and the steel construction bearing diagonal of cyclone are connected, the cross-section of cyclone changes along with the difference of distortion direction and spatial position. The utility model provides an overweight receipts limit curve of overlength arch and the support system problem of the disposable construction of hyperbolic structure steel sheet cyclone, the on-the-spot instability problem of concatenation of the overweight hyperbolic structure irregular steel sheet cyclone of overlength and the hoist and mount instability problem of the overweight hyperbolic structure steel sheet cyclone of overlength, have security, economic nature and suitability.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an outdoor place stand variable cross section arc roof beam combination of encorbelmenting assembles connection structure, and it can guarantee the figurative realization of arc box girder to alleviate component dead weight itself, guarantee structure safety, satisfy the requirement of indoor outer air convection current.
In order to realize the above-mentioned purpose, the utility model provides an outdoor venue stand variable cross section arc roof beam combination assembling connection structure that encorbelments, assemble the unit including a plurality of steel construction, every steel construction is assembled the unit and is included: the central support steel column is vertically arranged and is of a cylindrical structure; the cantilever variable-section box-type beams are arranged in a radial manner at intervals around a central support steel column, the inner end parts of the cantilever variable-section box-type beams are respectively fixedly connected with the upper part of the central support steel column, and the longitudinal section heights of the cantilever variable-section box-type beams from the inner end parts to the outer end parts of the cantilever variable-section box-type beams are sequentially reduced; the outer end of each cantilever variable cross-section box-shaped beam is fixedly connected with the top of the central support steel column through the upper layer circular tube, and the outer end of each two adjacent cantilever variable cross-section box-shaped beams are fixedly connected through the upper layer circular tube.
The utility model discloses an among the embodiment, the quantity of encorbelmenting variable cross section box girder is provided with seven, and seven encorbelments variable cross section box girder are radial interval setting around the center support steel column, and every variable cross section box girder of encorbelmenting is assembled by multisection variable cross section box girder unit and is formed to the longitudinal section height from the interior tip of encorbelmenting variable cross section box girder to outer tip multisection variable cross section box girder unit reduces in proper order.
In one embodiment of the present invention, seven cantilever variable cross-section box beams are sequentially arranged in the counterclockwise direction as a first cantilever variable cross-section box beam, a second cantilever variable cross-section box beam, a sixth cantilever variable cross-section box beam, a fourth cantilever variable cross-section box beam, a third cantilever variable cross-section box beam, a fifth cantilever variable cross-section box beam and a seventh cantilever variable cross-section box beam, wherein the first cantilever variable cross-section box beam and the second cantilever variable cross-section box beam are arranged outside the cantilever variable cross-section arc beam assembly connection structure of the outdoor venue stand, the fourth cantilever variable cross-section box beam, the third cantilever variable cross-section box beam and the fifth cantilever variable cross-section box beam are arranged inside the cantilever variable cross-section arc beam assembly connection structure of the outdoor venue stand, and the first cantilever variable cross-section box beam and the second cantilever variable cross-section box beam are respectively and fixedly connected to an outer end of a steel column arranged in the vertical direction, and the length of the overhanging variable cross-section box-shaped beam arranged on the inner side of the overhanging variable cross-section arc-shaped beam combined splicing and connecting structure of the outdoor stadium stand is greater than that of the overhanging variable cross-section box-shaped beam arranged on the outer side.
The utility model discloses an among the embodiment, first variable cross section box roof beam and the second of encorbelmenting contained angle between the variable cross section box roof beam is 38, the second encorbelment contained angle between variable cross section box roof beam and the sixth of encorbelmenting variable cross section box roof beam is 78, the sixth of encorbelmenting variable cross section box roof beam and the fourth of encorbelmenting variable cross section box roof beam between contained angle is 45, the fourth of encorbelmenting variable cross section box roof beam and the third of encorbelmenting variable cross section box roof beam between contained angle is 37, the third of encorbelmenting variable cross section box roof beam and the fifth of encorbelmenting variable cross section box roof beam between contained angle is 25, the fifth of encorbelmenting variable cross section box roof beam and the seventh of encorbelmenting variable cross section box roof beam between contained angle is 58, the seventh of encorbelmenting variable cross section box roof beam and the first contained angle of encorbelmenting variable cross section box roof beam are 78.
The utility model discloses an in the embodiment, every variable cross section box roof beam of encorbelmenting is assembled by three variable cross section box roof beam units and is formed, and first section variable cross section box roof beam unit and the second section variable cross section box roof beam unit that rises from the interior tip of the variable cross section box roof beam of encorbelmenting constitute to the bellied arc case roof beam structure of top.
The utility model discloses an among the embodiment, the diameter of center support steel column is 1400mm, the diameter of outside support steel column is 1100mm, the difference in height between the outer tip top of the variable cross-section box girder of encorbelmenting of second and the interior tip bottom is 10080mm, the difference in height between the outer tip top of the variable cross-section box girder of encorbelmenting of fourth and the interior tip bottom is 15200mm, the length of the upper strata pipe between the outer tip of the first variable cross-section box girder of encorbelmenting and the outer tip of the second variable cross-section box girder of encorbelmenting is 10200mm, the distance between the outer tip of the first variable cross-section box girder of encorbelmenting and the center support steel column is 16300mm, the distance between the outer tip of the fourth variable cross-section box girder of encorbelmenting and the center support steel column is 32290mm, the length of the upper strata pipe between the outer tip of the fourth variable cross-section box girder of encorbelmenting and the third of the variable cross-section box girder of encorbelmenting is 16800mm, the third is encorbelmenting Is 10800 mm.
The utility model discloses an among the embodiment, seven encorbelments become cross-section box girder and do not welded fastening on the center support steel column, wherein, after the third encorbelment become cross-section box girder and center support steel column welding completion, the third encorbelment becomes the both sides of cross-section box girder and increases the flitch that welds 40mm thick to the side root of encorbelmenting become cross-section box girder and the third to encorbelment become cross-section box girder of the face away from of the fourth encorbelment becomes cross-section box girder and the fifth encorbelment becomes cross-section box girder reserves the operating hand hole that has width 400mm, height same beam height, the fourth encorbelment becomes cross-section box girder and the fifth encorbelment become cross-section box girder and pass through operating hand hole and flitch welded connection.
Compared with the prior art, according to the utility model discloses an outdoor venue stand variable cross section arc roof beam combination of encorbelmenting is assembled connection structure and is had following advantage: the utility model discloses an outdoor venue stand variable cross section arc roof beam combination of encorbelmenting assembles connection structure is through setting up the center support steel column to be radial interval setting around the center support steel column with many variable cross section box roof beams of encorbelmenting, thereby form the arborescent appearance structure of palm, through reaching the stand all around and the ceiling design is penetrating system, thereby satisfied the requirement of indoor outer air convection current well, through the design of every variable cross section box roof beam of encorbelmenting, lightened component dead weight itself, guaranteed structure safety.
Drawings
Fig. 1 is a schematic sectional view of a steel structure assembling unit according to an embodiment of the present invention.
Fig. 2 is a schematic plan view of a steel structure assembling unit according to an embodiment of the present invention.
Fig. 3 is a top view of a connection node between seven overhanging variable cross-section box beams and a central support steel column according to an embodiment of the present invention.
Fig. 4 is a ground assembly schematic diagram of an overhanging variable cross-section box beam according to an embodiment of the present invention.
Fig. 5 is a ground assembly sectional view of an overhanging variable cross-section box girder according to an embodiment of the present invention.
Fig. 6 is a schematic view of an overhanging variable cross-section box beam according to an embodiment of the present invention.
Fig. 7 is a schematic view of a fourth cantilever variable cross-section box beam hollowing welding according to an embodiment of the present invention.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited by the following detailed description.
Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
Example 1
As shown in fig. 1, according to the utility model discloses connection structure is assembled in combination of variable cross section arc roof beam that encorbelments of preferred embodiment's outdoor venue stand, the unit is assembled to steel construction including a plurality of monolithic couplings, and every steel construction is assembled the unit and is included: a central supporting steel column 101, an overhanging variable cross-section box-type beam 102 and an upper round pipe 103. The center support steel column 101 is vertically arranged, and the center support steel column 101 is of a cylindrical structure. The cantilever variable-section box-type beams 102 are provided with a plurality of cantilever variable-section box-type beams 102, the cantilever variable-section box-type beams 102 are radially arranged around the central support steel column 101 at intervals, and the inner ends of the cantilever variable-section box-type beams 102 are respectively fixedly connected with the upper part of the central support steel column 101. The number of the cantilevered variable-section box beams 102 is set to seven at most. The outer end of each cantilever variable cross-section box-type beam 102 is fixedly connected with the top of the central support steel column 101 through an upper layer circular tube 103, and the outer ends of two adjacent cantilever variable cross-section box-type beams 102 are fixedly connected through the upper layer circular tube 103. The number of the overhanging variable cross-section box-shaped beams 102 is at most seven, and each overhanging variable cross-section box-shaped beam 102 is formed by assembling a plurality of sections of variable cross-section box-shaped beam units. The plurality of overhanging variable cross-section box-shaped beams 102 are radially projected to the periphery around the central support steel column 101 to form a palm tree-shaped modeling steel structure, the palm tree-shaped modeling steel structure is used for outdoor stadium stands, and the periphery of the stands and a ceiling are designed into a transparent system, so that the requirement of indoor and outdoor air convection is well met. And an outer side supporting steel column 104 connected with the outer end part of the overhanging variable-section box-type beam 102 is further arranged on the outer side of the overhanging variable-section arc beam combined splicing and connecting structure of the outdoor stadium stand. And the height of the longitudinal section of the cantilever variable-section box-shaped beam from the inner end part to the outer end part is reduced in sequence, so that the self weight of the member is reduced, and the integral safety of the structure is ensured.
Example 2
In this embodiment, as shown in fig. 2 to 3, seven cantilevered variable-section box-type beams are provided, the seven cantilevered variable-section box-type beams are radially spaced around the central support steel column 101, and each cantilevered variable-section box-type beam is formed by assembling multiple sections of variable-section box-type beam units. The heights of the longitudinal sections of the multi-section variable cross-section box girder units are sequentially reduced from the inner end part to the outer end part of the cantilever variable cross-section box girder 102, as shown in fig. 6, so that the self-weight of the members is favorably reduced, and the structural safety is ensured.
Specifically, as shown in fig. 3, seven overhanging variable-section box beams are sequentially arranged in the counterclockwise direction as a first overhanging variable-section box beam 201, a second overhanging variable-section box beam 202, a sixth overhanging variable-section box beam 206, a fourth overhanging variable-section box beam 204, a third overhanging variable-section box beam 203, a fifth overhanging variable-section box beam 205, and a seventh overhanging variable-section box beam 207. The first cantilever variable-section box-type beam 201 and the second cantilever variable-section box-type beam 202 are arranged on the outer side of the cantilever variable-section arc-shaped beam combined splicing and connecting structure of the outdoor venue stand, and the fourth cantilever variable-section box-type beam 204, the third cantilever variable-section box-type beam 203 and the fifth cantilever variable-section box-type beam 205 are arranged on the inner side of the cantilever variable-section arc-shaped beam combined splicing and connecting structure of the outdoor venue stand. The outer end portions of the first cantilever variable-section box-shaped beam 201 and the second cantilever variable-section box-shaped beam 202 are fixedly connected with an outer supporting steel column 104 arranged in the vertical direction respectively, and the length of the cantilever variable-section box-shaped beam arranged on the inner side of the cantilever variable-section arc-shaped beam combined splicing and connecting structure of the outdoor venue stand is larger than the length of the cantilever variable-section box-shaped beam arranged on the outer side. In addition, a transverse stiffening rib 106 is also provided above the root of the overhanging variable cross-section box beam.
Further, an included angle between the first overhanging variable-cross-section box-shaped beam 201 and the second overhanging variable-cross-section box-shaped beam 202 is 38 °, an included angle between the second overhanging variable-cross-section box-shaped beam 202 and the sixth overhanging variable-cross-section box-shaped beam 206 is 78 °, an included angle between the sixth overhanging variable-cross-section box-shaped beam 206 and the fourth overhanging variable-cross-section box-shaped beam 204 is 45 °, an included angle between the fourth overhanging variable-cross-section box-shaped beam 204 and the third overhanging variable-cross-section box-shaped beam 203 is 37 °, an included angle between the third overhanging variable-cross-section box-shaped beam 203 and the fifth overhanging variable-cross-section box-shaped beam 205 is 25 °, an included angle between the fifth overhanging variable-cross-section box-shaped beam 205 and the seventh overhanging variable-cross-section box-shaped beam 207 is 58 °, and an included angle between the seventh overhanging variable-section box-shaped beam 207 and the first overhanging variable-cross-section box-shaped beam 201 is 78 °.
In this embodiment, the diameter of the central support steel column 101 is 1400mm, the diameter of the outer support steel column 104 is 1100mm, the height difference between the top of the outer end portion and the bottom of the inner end portion of the second overhanging variable-section box-shaped beam 202 is 10080mm, the height difference between the top of the outer end portion and the bottom of the inner end portion of the fourth overhanging variable-section box-shaped beam 204 is 15200mm, the length of the upper round tube 103 between the outer end portion of the first overhanging variable-section box-shaped beam 101 and the outer end portion of the second overhanging variable-section box-shaped beam 202 is 10200mm, the distance between the outer end portion of the first overhanging variable-section box-shaped beam 201 and the central support steel column 101 is 16300mm, the distance between the outer end portion of the fourth overhanging variable-section box-shaped beam 204 and the central support steel column 101 is 32290mm, the length of the upper round tube 103 between the outer end portion of the fourth overhanging variable-section box-shaped beam 204 and the outer end portion of the third overhanging variable-section box-shaped beam 203 is 16800mm, the length of the upper round pipe 103 between the outer end of the third overhanging variable cross-section box beam 203 and the outer end of the fifth overhanging variable cross-section box beam 205 is 10800 mm.
The utility model discloses a set up above-mentioned seven variable cross section box girders of encorbelmenting on the upper portion of center support steel column 101 to the every variable cross section box girder of encorbelmenting highly reduces in proper order and has certain radian from interior tip to outer tip longitudinal section, thereby forms palm arborescence molding wholly, and through mechanics calculation verification, its stability and security all accord with the designing requirement.
Example 3
The utility model discloses an outdoor venue stand cantilever variable cross section arc roof beam combination assembles connection structure's construction method specifically includes following step: assembling a plurality of overhanging variable cross-section box-type beams, and hoisting the assembled whole overhanging variable cross-section box-type beam; determining the connecting positions of a plurality of overhanging variable cross-section box-type beams on a central support steel column, and installing the central support steel column in a hanging manner; respectively welding a plurality of overhanging variable cross-section box-type beams on a central support steel column; and the outer end part of each cantilever variable cross-section box-shaped beam is fixedly connected with the top of the central support steel column through an upper layer circular tube, and the outer end parts of two adjacent cantilever variable cross-section box-shaped beams are fixedly connected through an upper layer circular tube.
Further, as shown in fig. 4-5, the assembled 503 overhanging variable cross-section box-shaped beam adopts a horizontal assembly mode, in order to ensure the assembly precision of components and prevent assembly errors caused by uneven settlement of a temporary support jig during the assembly process, soil 501 is tamped in an assembly field, a 200mm thick gravel cushion layer 502 is compacted, and then a steel roadbed box base 503 is laid on the gravel cushion layer 502. Adopt a plurality of assembling child moulds of H shaped steel preparation, wherein, every assembles the child mould and includes H shaped steel stand 504 and H shaped steel crossbeam 505, fix every H shaped steel stand 504 of assembling the child mould on steel roadbed box base 503, set up hoist and mount otic placode 506 at the variable cross section box roof beam top of encorbelmenting and hoist, and utilize H shaped steel crossbeam 505 to support every variable cross section box roof beam unit of encorbelmenting of variable cross section box roof beam 102, and the both sides of encorbelmenting variable cross section box roof beam 102 are fixed a position through location splint 508. And finally, butting and assembling the variable cross-section box girder units. The first section of variable cross-section box girder unit 311 and the second section of variable cross-section box girder unit 312 from the inner end part of the cantilever variable cross-section box girder form an arc-shaped box girder structure protruding upwards, the welding seam position is avoided by selecting the lifting point of the arc-shaped box girder, the deformation is ensured during the hoisting process through strict stress calculation on the arc-shaped convex surface, and the lifting rope 507 forms an included angle of 45 degrees with the horizontal direction.
Specifically, during installation of the cantilever variable cross-section box-type beam, a supporting steel column base embedded plate is embedded according to design requirements during construction of a concrete structure, whether the embedded plate is accurate or not is judged, the upper palm tree-shaped forming effect is directly influenced, and therefore not only is the position of each supporting steel column embedded plate accurate, but also the position between each supporting steel column and each supporting steel column is accurate. The method comprises the steps that when the concrete strength reaches a design rule, a center support steel column is hung and installed, before hanging and installing, a ruler of the connection position of each overhanging variable cross-section box-type beam needs to be checked at the center support steel column, after the center support steel column is installed, the position and the size need to be checked, and after the center support steel column is installed, welding construction of the overhanging variable cross-section box-type beam is carried out.
Example 4
In the embodiment, as shown in fig. 1-3, the connection positions of a plurality of overhanging variable cross-section box-type beams are determined on a central support steel column, and the central support steel column is hung and installed; weld many variable cross section box girder welding of encorbelmenting respectively on center support steel column 101 includes: the first overhanging variable-section box-type beam 201, the second overhanging variable-section box-type beam 202, the sixth overhanging variable-section box-type beam 206, the fourth overhanging variable-section box-type beam 204, the third overhanging variable-section box-type beam 203, the fifth overhanging variable-section box-type beam 205 and the seventh overhanging variable-section box-type beam 207 are radially arranged around the central support steel column 101 at intervals in the counterclockwise direction, and the first overhanging variable-section box-type beam 201, the second overhanging variable-section box-type beam 202, the sixth overhanging variable-section box-type beam 206, the fourth overhanging variable-section box-type beam 204, the third overhanging variable-section box-type beam 203, the fifth overhanging variable-section box-type beam 205 and the seventh overhanging variable-section box-type beam 207 are respectively welded on the central support steel column 101.
Further, an included angle between the first overhanging variable-cross-section box-shaped beam 201 and the second overhanging variable-cross-section box-shaped beam 202 is 38 °, an included angle between the second overhanging variable-cross-section box-shaped beam 202 and the sixth overhanging variable-cross-section box-shaped beam 206 is 78 °, an included angle between the sixth overhanging variable-cross-section box-shaped beam 206 and the fourth overhanging variable-cross-section box-shaped beam 204 is 45 °, an included angle between the fourth overhanging variable-cross-section box-shaped beam 204 and the third overhanging variable-cross-section box-shaped beam 203 is 37 °, an included angle between the third overhanging variable-cross-section box-shaped beam 203 and the fifth overhanging variable-cross-section box-shaped beam 205 is 25 °, an included angle between the fifth overhanging variable-cross-section box-shaped beam 205 and the seventh overhanging variable-cross-section box-shaped beam 207 is 58 °, and an included angle between the seventh overhanging variable-section box-shaped beam 207 and the first overhanging variable-cross-section box-shaped beam 201 is 78 °. In the embodiment, the diameter of the central supporting steel column 101 is 1400mm, the diameter of the outer supporting steel column 104 is 1100mm, and the distance between the outer end of the fourth overhanging variable-section box-type beam 204 and the central supporting steel column 101 reaches 32290 mm.
Specifically, the welding of the first cantilever variable cross-section box beam 201, the second cantilever variable cross-section box beam 202, the sixth cantilever variable cross-section box beam 206, the fourth cantilever variable cross-section box beam 204, the third cantilever variable cross-section box beam 203, the fifth cantilever variable cross-section box beam 205 and the seventh cantilever variable cross-section box beam 207 on the center support steel column 101 respectively comprises the following steps:
1. and (5) erecting an assembling jig frame.
Specifically, the assembly jig frame adopts a double-limb lattice type jig frame, the upright posts adopt 150 × 8 square tubes, and the web members adopt 80 × 6 square tubes; the top is provided with a conversion platform which is made of 200X 150X 8X 10 section steel; the bottom of the jig frame is provided with a conversion beam, the conversion beam adopts 250X 9X 12 section steel and is welded with the stage floor slab through an embedded plate pre-embedded in advance; the assembling jig frame is provided with a vertical ladder stand for going up and down a channel, and a springboard is laid on the top platform and a life line is pulled. And wind-holding ropes are pulled at the height position of the assembling jig 2/3.
2. And (5) mounting the cantilever variable-section box-type beam.
As shown in fig. 2-3 and 7, to weld seven overhanging variable cross-section box-type beams on the upper part of a central supporting steel column with a diameter of 1400mm, and to ensure the weld quality of the welded part, because the first section of variable cross-section box-type beam unit 311 and the second section of variable cross-section box-type beam unit 312 from the inner end part of the overhanging variable cross-section box-type beam are arc-shaped box-type beam structures, which are rooted at the column head part of the central supporting steel column 101, the included angle between the root parts of the overhanging variable cross-section box-type beams is narrow, and particularly, the minimum included angle between the third overhanging variable cross-section box-type beam 203, the fourth overhanging variable cross-section box-type beam 204 and the fifth overhanging variable cross-section box-type beam 205 is 25 °, and there is insufficient welding operation space, and the operation space of a hand and a welding handle is insufficient according to a normal welding method, and welding and weld detection cannot be performed. Therefore, the utility model discloses creatively take "the construction method of earlier centre back both sides, undercutting flitch welding", specifically as follows:
1) installing a first overhanging variable cross-section box-type beam 201 and a second overhanging variable cross-section box-type beam 202 which are fixedly connected with the outer side supporting steel column 104;
2) installing a third overhanging variable cross-section box-shaped beam 203, and additionally welding flitch plates 105 with the thickness of 40mm on two sides of the third overhanging variable cross-section box-shaped beam 203 after the third overhanging variable cross-section box-shaped beam 203 is welded with the central support steel column 101;
3) installing a fourth overhanging variable cross-section box-type beam 204 and a fifth overhanging variable cross-section box-type beam 205, and reserving an operating hand hole 701 with the width of 400mm and the height equal to the beam height at the root of the side face, back to the third overhanging variable cross-section box-type beam, of the fourth overhanging variable cross-section box-type beam 204 and the fifth overhanging variable cross-section box-type beam 205 before installation;
4) respectively welding the fourth overhanging variable cross-section box-shaped beam 204 and the fifth overhanging variable cross-section box-shaped beam 205 with the flitch 105 in an emptying mode through an operating hand hole 701 reserved on the side surface, wherein the grade of a welding line is one grade, and detecting the welding line;
5) after the welding seam is detected to be qualified, the side operation hand holes 701 of the fourth overhanging variable cross-section box-shaped beam 204 and the fifth overhanging variable cross-section box-shaped beam 205 are covered;
6) installing a sixth overhanging variable cross-section box-shaped beam 206 and a seventh overhanging variable cross-section box-shaped beam 107, and performing primary weld joint detection after welding is completed;
7) and (4) completely installing the seven overhanging variable cross-section box-type beams, and dismantling the jig frame according to the requirement of an unloading scheme.
Therefore, the construction mode can be adopted for the parts of the dense beams with narrow operation included angles.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (8)
1. The utility model provides an outdoor venue stand variable cross section arc roof beam combination of encorbelmenting assembles connection structure, a serial communication port, outdoor venue stand variable cross section arc roof beam combination of encorbelmenting assembles connection structure and includes that a plurality of steel construction assemble the unit, every the unit is assembled to the steel construction includes:
the central support steel column is vertically arranged and is of a cylindrical structure;
the cantilever variable-section box-type beams are arranged at most seven, the cantilever variable-section box-type beams are radially arranged around the central support steel column at intervals, the inner end parts of the cantilever variable-section box-type beams are respectively and fixedly connected with the upper part of the central support steel column, and the longitudinal section heights of the cantilever variable-section box-type beams are sequentially reduced from the inner end parts to the outer end parts of the cantilever variable-section box-type beams;
the outer end part of each cantilever variable cross-section box-shaped beam is fixedly connected with the top of the central support steel column through the upper layer circular tube, and the outer end parts of two adjacent cantilever variable cross-section box-shaped beams are fixedly connected through the upper layer circular tube.
2. The assembled and connected structure of the overhanging variable cross-section arc-shaped beams of the outdoor venue stand as claimed in claim 1, wherein the number of the overhanging variable cross-section box-shaped beams is seven, the seven overhanging variable cross-section box-shaped beams are radially arranged around the central support steel column at intervals, and each overhanging variable cross-section box-shaped beam is assembled by multiple sections of variable cross-section box-shaped beam units.
3. The combination, assembly and connection structure of the overhanging variable cross-section arc-shaped beam of the outdoor stadium stand of claim 2, it is characterized in that seven overhanging variable cross-section box type beams are sequentially arranged in a first overhanging variable cross-section box type beam, a second overhanging variable cross-section box type beam, a sixth overhanging variable cross-section box type beam, a fourth overhanging variable cross-section box type beam, a third overhanging variable cross-section box type beam, a fifth overhanging variable cross-section box type beam and a seventh overhanging variable cross-section box type beam along the anticlockwise direction, wherein the first overhanging variable cross-section box-shaped beam and the second overhanging variable cross-section box-shaped beam are arranged at the outer side of the overhanging variable cross-section arc-shaped beam combined splicing and connecting structure of the outdoor stadium stand, the fourth cantilever variable-section box-type beam, the third cantilever variable-section box-type beam and the fifth cantilever variable-section box-type beam are arranged on the inner side of the cantilever variable-section arc-shaped beam combined splicing and connecting structure of the outdoor stadium stand.
4. The outdoor venue stand cantilever variable cross-section arc beam combination splicing and connecting structure as claimed in claim 3, wherein the outer end portions of the first cantilever variable cross-section box beam and the second cantilever variable cross-section box beam are respectively and fixedly connected with an outer side supporting steel column arranged along the vertical direction, and the length of the cantilever variable cross-section box beam arranged on the inner side of the outdoor venue stand cantilever variable cross-section arc beam combination splicing and connecting structure is greater than that of the cantilever variable cross-section box beam arranged on the outer side.
5. The combination, assembly and connection structure of the overhanging variable cross-section arc-shaped beam of the outdoor venue stand as claimed in claim 4, it is characterized in that the included angle between the first overhanging variable cross-section box-shaped beam and the second overhanging variable cross-section box-shaped beam is 38 degrees, the included angle between the second overhanging variable cross-section box-shaped beam and the sixth overhanging variable cross-section box-shaped beam is 78 degrees, the included angle between the sixth overhanging variable cross-section box-shaped beam and the fourth overhanging variable cross-section box-shaped beam is 45 degrees, the included angle between the fourth overhanging variable cross-section box-shaped beam and the third overhanging variable cross-section box-shaped beam is 37 degrees, the included angle between the third overhanging variable cross-section box-shaped beams is 37 degrees and the included angle between the fifth overhanging variable cross-section box-shaped beams is 25 degrees, the included angle between the fifth overhanging variable cross-section box-shaped beam and the seventh overhanging variable cross-section box-shaped beam is 58 degrees, and the included angle between the seventh overhanging variable cross-section box-shaped beam and the first overhanging variable cross-section box-shaped beam is 78 degrees.
6. The assembled and connected structure of cantilever variable-section arched beams of outdoor stadium stand of claim 2, wherein each cantilever variable-section box beam is assembled by three sections of variable-section box beam units, and a first section of variable-section box beam unit and a second section of variable-section box beam unit from the inner end of the cantilever variable-section box beam constitute an upwardly convex arched box beam structure.
7. The assembled and connected structure of cantilever variable-section arc-shaped beams of outdoor venue stand according to claim 5, wherein the diameter of the central supporting steel column is 1400mm, the diameter of the outer supporting steel column is 1100mm, the height difference between the top of the outer end portion and the bottom of the inner end portion of the second cantilever variable-section box-shaped beam is 10080mm, the height difference between the top of the outer end portion and the bottom of the inner end portion of the fourth cantilever variable-section box-shaped beam is 15200mm, the length of the upper round tube between the outer end portion of the first cantilever variable-section box-shaped beam and the outer end portion of the second cantilever variable-section box-shaped beam is 10200mm, the distance between the outer end portion of the first cantilever variable-section box-shaped beam and the central supporting steel column is 16300mm, the distance between the outer end portion of the fourth cantilever variable-section box-shaped beam and the central supporting steel column is 32290mm, and the upper round tube between the outer end portion of the fourth cantilever variable-section box-shaped beam and the outer end portion of the third cantilever variable-section box-shaped beam is 32290mm The length of the round pipe is 16800mm, and the length of the upper layer round pipe between the outer end of the third overhanging variable cross-section box-shaped beam and the outer end of the fifth overhanging variable cross-section box-shaped beam is 10800 mm.
8. The assembled and assembled connecting structure of the cantilevered variable-section arc-shaped beams of the outdoor venue stand as claimed in claim 7, wherein seven cantilevered variable-section box-shaped beams are respectively welded and fixed to the central support steel column, wherein after the third cantilevered variable-section box-shaped beam is welded to the central support steel column, flitches with the thickness of 40mm are additionally welded to two sides of the third cantilevered variable-section box-shaped beam, operation hand holes with the width of 400mm and the height of the same beam are reserved in the root portions of the side faces, back to the third cantilevered variable-section box-shaped beam, of the fourth cantilevered variable-section box-shaped beam and the fifth cantilevered variable-section box-shaped beam, and the fourth cantilevered variable-section box-shaped beam and the fifth cantilevered variable-section box-shaped beam are welded and connected to the flitches through the operation hand holes.
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| CN202120360690.7U CN214574709U (en) | 2021-02-09 | 2021-02-09 | Outdoor venue stand cantilever variable cross-section arc beam combination assembling connection structure |
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| CN202120360690.7U CN214574709U (en) | 2021-02-09 | 2021-02-09 | Outdoor venue stand cantilever variable cross-section arc beam combination assembling connection structure |
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