CN217811586U - Large-span overhanging steel structure supporting component - Google Patents
Large-span overhanging steel structure supporting component Download PDFInfo
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- CN217811586U CN217811586U CN202221815357.1U CN202221815357U CN217811586U CN 217811586 U CN217811586 U CN 217811586U CN 202221815357 U CN202221815357 U CN 202221815357U CN 217811586 U CN217811586 U CN 217811586U
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Abstract
The utility model belongs to the technical field of the steel construction technique of encorbelmenting and specifically relates to large-span steel construction supporting component that encorbelments, including the large-span box girder of encorbelmenting, the inner bottom sprag of the large-span box girder of encorbelmenting is at a vertical steel support piece's top, vertical steel support piece includes a hollow steel stand be provided with the top base on the top lateral wall of hollow steel stand support tightly on the top base and placed the large-span box girder of encorbelmenting, the rear end of the large-span box girder of encorbelmenting extends the rear side of hollow steel stand, the corresponding end position of the large-span box girder of encorbelmenting through a plurality of vertical connecting bolt spare with the top base realizes that the bolt links firmly an draw structure is installed to the vertical intracavity of square of hollow steel stand. This subassembly can match the large-span structure of encorbelmenting effectively, especially to the large-span cantilever beam structure, can guarantee the stability that the whole of beam structure encorbelments effectively, guarantees the intensity of vertical support simultaneously.
Description
Technical Field
The utility model relates to a steel construction technical field encorbelments, in particular to can carry out the structural component that stablizes the support to the steel construction of encorbelmenting of large-span, especially large-span steel construction supporting component that encorbelments.
Background
The overhanging structure belongs to a term in the engineering industry, and mainly means an effect achieved by using other structural designs of a building component, no support is arranged below part or all of buildings, a visual effect of hanging and raising is provided for people, and lateral force is mainly applied.
With the development of society, people seek more comfortable living and office environments, and put higher demands on the external shape of buildings and the surrounding environment. The building with large height and span and large external overhang size space is more widely applied.
The cantilever structure belongs to one of the common structural forms in engineering, and the cantilever structure is formed by cantilever beams or plates from a main structure and belongs to a beam-plate structure essentially.
Because the selective tuning structure is a beam or a plate which is cantilevered from the main structure, the span generally adopted by the current cantilever structure is smaller.
For example, in the document with patent application No. CN200820233897.2, an overhead cantilever steel structure is disclosed, which mainly comprises a main body and a cantilever steel structure arranged on the main body, the cantilever steel structure comprises a bearing platform part at the bottom and a frame body part fixedly arranged on the bearing platform part, the frame body part is fixedly arranged on the main body, and the bearing platform part and the main body are hinged through a pin shaft. The main body is provided with one or a plurality of rotating members at intervals, and the pin shafts are respectively hinged with the rotating members and the bearing platform part.
The basic principle of the cantilever structure is similar to that of some cantilever structures in the prior art, the common cantilever structure is generally only suitable for the cantilever length with smaller span, and the integral stress condition and stability of the cantilever structure are difficult to guarantee when the cantilever structure is manufactured into a large-span cantilever structure.
Especially, under the condition of considering wind load, the stability, the anti-lifting performance and the anti-vibration performance of the large-span cantilever steel structure are particularly important under the relative condition.
Therefore, according to the problems encountered in actual construction, the company provides the assembly structure capable of realizing stable support under a large-span cantilever steel structure, so as to better solve the problems in the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve one of above-mentioned technical problem, the technical scheme who adopts is: large-span steel construction supporting component of encorbelmenting, the large-span box girder of encorbelmenting that sets up including the level, the outer end that the large-span box girder of encorbelmenting is in unsettled state, the inner bottom sprag of the large-span box girder of encorbelmenting is at a vertical steel support's top, vertical steel support includes a hollow steel stand be provided with the top base on the top lateral wall of hollow steel stand support last support tightly place the large-span box girder of encorbelmenting, the rear end that the large-span was encorbelmented box girder extends the rear side of hollow steel stand, the corresponding end position that the large-span was encorbelmented box girder through a plurality of vertical connecting bolt spare with the top base realizes the bolt and links firmly the vertical intracavity of square of hollow steel stand is installed and is drawn the structure, draw down the structure be used for realizing that the back end of the large-span box girder of encorbelmenting above that it is drawn the knot downwards fixed.
In any of the above schemes, preferably, the pull-down structure includes a rigid welding square frame movably sleeved on the outer side wall of the large-span cantilever box beam above the center of the hollow steel column, a tie steel column is arranged in a square vertical cavity of the hollow steel column below the rigid welding square frame, the top of the tie steel column is fixedly connected with the rigid welding square frame in a welding manner, a horizontal steel pipe is welded at the bottom of the tie steel column, and the horizontal steel pipe is sleeved on a tie locking piece.
In any of the above solutions, preferably, a rear end tie is provided at the rear side of the hollow steel column.
Preferably in any one of the above schemes, the rear end drawknot piece includes fixed welding and is in lower part welding ear seat on the rear side lower part lateral wall of hollow steel stand the integrative welding of rear end of the large-span box girder has a back welding ear seat, back welding ear seat with it is taut through the first anchor rope that the slope set up between the welding ear seat of lower part.
In any of the above schemes, preferably, the tie locking member includes a tie transverse bolt horizontally disposed, the tie transverse bolt has one side along the horizontal direction sequentially penetrating through the corresponding right through hole, the central through cavity of the horizontal steel pipe, and the left through hole on the outer side wall of the hollow steel column and extending to the outer side of the other side of the hollow steel column, and a locking nut is screwed on the outer side wall of the left external thread of the tie transverse bolt.
In any of the above schemes, preferably, the lock nut and the tie cross bolt are subjected to multi-point welding after being locked.
In any of the above schemes, preferably, the anti-lifting connecting lug seat is integrally formed on the right end face of the bolt head at the right end of the drawknot transverse bolt, an anti-lifting upper lug seat is fixedly bolted to the bottom of the middle section of the large-span cantilever box-shaped beam, and a front-end cantilever tensioning anchor cable is connected between the anti-lifting upper lug seat and the anti-lifting connecting lug seat in a tensioning manner.
In any of the above schemes, preferably, each screw hole provided on the bolt head of the tie cross bolt is fastened in the bolt connecting hole on the right outer sidewall of the hollow steel upright post through matching with a corresponding screw.
In any of the above solutions, preferably, a reinforcing rib seat is provided between the bottom of the top base and the outer side wall of the hollow steel column.
In any of the above schemes, preferably, the lower ends of the hollow steel columns are pre-buried and fixed under the ground, and concrete reinforcing areas are poured in foundation pits around the hollow steel columns; and a plurality of side supporting structures are welded on the outer side wall of the hollow steel upright post.
Compared with the prior art, the beneficial effects of the utility model are as follows:
1. this subassembly can match the large-span structure of encorbelmenting effectively, especially to the large-span cantilever beam structure, can guarantee the stability that the whole of beam structure encorbelments effectively, guarantees the intensity of vertical support simultaneously.
2. The structure that draws down of the large-span box girder that encorbelments of this subassembly in each vertical connecting bolt spare and stand can realize effectively that the large-span box girder that encorbelments and hollow steel stand top contact site's stable fixed, adopt the rear end drawknot piece simultaneously, the double cooperation of the front end tensioning anchor rope of encorbelmenting can guarantee whole large-span box girder rear end of encorbelmenting better, support tight tie point, the effective drawknot and the fastening of this three-point of front end, thereby improve the large-span stability of encorbelmenting the box girder reply large-span and wind load state on the whole, bearing capacity and security when improving the use.
3. The bottom of the hollow steel upright in the assembly adopts a mode that a plurality of sides of the center fixed fit are supported to support and fix the side support, so that the overall stability of the hollow steel upright can be further ensured, and the stability of the large-span cantilever box-type beam on the upper end of the hollow steel upright is further ensured.
4. The first anchor cable that sets up is taut, the front end tensioning anchor cable of encorbelmenting can restrict each other effectively, mutually supports and plays the effect that both can realize the front end drawknot and can realize the rear end drawknot, adopts flexible anchor cable to install the dismantlement better simultaneously, can realize simultaneously that the deformation of small amount realizes the buffering return, can make it possess certain flexibility and buffering volume according to the pretension degree when installing during installation uses.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below. Throughout the drawings, like elements or components are generally identified by like reference numerals. In the drawings, elements or components are not necessarily drawn to scale.
Fig. 1 is a schematic sectional view of the present invention.
Fig. 2 is a schematic diagram of the local enlarged structure of the present invention.
In the figure, 1, a large-span cantilever box girder; 2. a hollow steel upright; 3. a top base; 4. a vertical connecting bolt member; 5. a square vertical cavity; 6. a pull-down structure; 7. a ground surface; 8. a concrete reinforcement area; 9. a side support structure; 10. a hinged seat; 11. rigidly welding a frame; 12. drawing the steel column; 13. a horizontal steel pipe; 14. the lower part is welded with an ear seat; 15. welding the lug seat; 16. a first anchor cable; 17. tying the transverse bolt; 1701. a bolt head; 18. a right through hole; 19. a central through cavity; 20. a left end through hole; 21. locking the nut; 22. the anti-lifting connecting ear seat; 23. the upper ear seat is prevented from being lifted; 24. the front end is cantilevered to tension the anchor cable; 25. a screw; 26. the strengthening rib seat.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby. The specific structure of the utility model is shown in the figure 1-2.
Example 1:
large-span steel construction supporting component that encorbelments, the large-span box girder 1 that encorbelments that sets up including the level, the outer end of large-span box girder 1 that encorbelments is in unsettled state, the inner bottom sprag of large-span box girder 1 is at a vertical steel support's top, vertical steel support includes a hollow steel stand 2 be provided with top base 3 on the top lateral wall of hollow steel stand 2 support tightly on the top base 3 and placed large-span box girder 1 that encorbelments, the rear end of large-span box girder 1 that encorbelments extends the rear side of hollow steel stand 2, the corresponding end position of large-span box girder 1 that encorbelments through a plurality of vertical connecting bolt 4 with top base 3 realizes the bolt and links firmly install draw structure 6 in the vertical chamber 5 of square of hollow steel stand 2, draw structure 6 is used for realizing that the rear section of the large-span box girder 1 that encorbelments above it ties downwards to tie fixedly.
This steel construction supporting component is encorbelmented to large-span adopts the mode that the large-span encorbelmented to the large-span box girder 1 of encorbelmenting is as the main part of encorbelmenting, has set up vertical steel support piece here in order to guarantee the stability that overall structure supported simultaneously and has guaranteed the intensity that its below supported.
The rear end of the large-span cantilever box-shaped beam 1 is fixed through the vertical connecting bolt piece 4 on the top base 3 of the hollow steel upright post 2, the bolting connection between the two can be effectively ensured, the connection strength is ensured, and meanwhile, the connection strength can be enhanced by utilizing a welding auxiliary mode on the butt part.
Connect hollow steel column 2 after fixed and large-span box girder 1 of encorbelmenting and can realize continuing to drawknot down under the effect of pulldown structure 6 to further guarantee the stability of large-span box girder 1 rear end of encorbelmenting, prevent that it from appearing the condition that the rear end upwarps.
In any of the above schemes, preferably, the pull-down structure 6 includes a rigid welding square frame 11 movably sleeved on the outer side wall of the large-span cantilever box-shaped beam 1 above the center of the hollow steel column 2, a tie steel column 12 is arranged in the square vertical cavity 5 of the hollow steel column 2 below the rigid welding square frame 11, the top of the tie steel column 12 is fixedly connected with the rigid welding square frame 11 by welding, a horizontal steel pipe 13 is welded at the bottom of the tie steel column 12, and the horizontal steel pipe 13 is sleeved on a tie locking member.
The lower pull structure 6 is limited mainly by a rigid welding square frame 11 during working, so that the lower pull steel column 12 is matched to realize that the rear end of the connected large-span cantilever box-type beam 1 bears downward pulling force, and a horizontal steel pipe 13 welded at the bottom of the pull steel column 12 can be sleeved on a pull locking part to realize relative fixation with the hollow steel upright post 2 in the pulling process.
In any of the above solutions, it is preferable that a rear end tie is provided at the rear side of the hollow steel column 2.
The main purpose of the rear end drawknot piece is to realize the downward drawknot of the rear end of the large-span cantilever box beam 1 and effectively prevent the rear end from upwarping.
In any of the above schemes, preferably, the rear end tie member includes a lower welding lug 14 fixedly welded to the outer side wall of the lower portion of the rear side of the hollow steel upright 2, a rear welding lug 15 is integrally welded to the rear end of the large-span cantilever box beam 1, and the rear welding lug 15 and the lower welding lug 14 are tightened by a first anchor cable 16 obliquely arranged.
When the rear end fastener works, the first anchor cable 16 is in a tensioned state, so that the tension of the fastener can be effectively ensured to be in a working state, and the stability of the fastener is ensured.
In any of the above schemes, preferably, the tie locking member includes a tie transverse bolt 17 horizontally disposed, the tie transverse bolt 17 has one side along the horizontal direction, which sequentially passes through a corresponding right through hole 18 on the outer side wall of the hollow steel column 2, a central through cavity 19 of the horizontal steel pipe 13, and a left through hole 20, and extends to the outer side of the other side of the hollow steel column 2, and a locking nut 21 is screwed on the outer side wall of the left external thread of the tie transverse bolt 17.
The drawknot locking piece can directly penetrate through the central through cavity 19 of the corresponding horizontal steel pipe 13 through the drawknot transverse bolt 17 on the drawknot locking piece, and then the horizontal steel pipe 13 can be positioned by being locked and fixed on the outer side wall of the corresponding hollow steel upright post 2, so that the drawknot steel column 12 and the rigid welding square frame 11 which are fixedly connected with the horizontal steel pipe 13 in a welding way can be positioned, and the rear end of the large-span cantilever box-shaped beam 1 fixed and drawn through the rigid welding square frame 11 can be better abutted against the tops of the hollow steel upright post 2 and the top base 3.
In any of the above schemes, preferably, an anti-lifting connecting lug seat 22 is integrally formed on the right end surface of the bolt head 1701 at the right end of the tie transverse bolt 17, an anti-lifting upper lug seat 23 is fixedly bolted to the bottom of the middle section of the large-span cantilever box-shaped beam 1, and a front-end cantilever tensioning anchor cable 24 is connected between the anti-lifting upper lug seat 23 and the anti-lifting connecting lug seat 22 in a tensioning manner.
The front-end overhanging tensioning anchor cable 24 at the end part of the tie transverse bolt 17 can effectively tie the bottom of the middle section of the large-span overhanging box-shaped beam 1 downwards, effectively prevent the front end of the large-span overhanging box-shaped beam 1 from being lifted upwards, and improve the wind load resistance and the overall stability of the large-span overhanging box-shaped beam; in addition, the installation position of the anti-lifting upper lug seat 23 at the bottom of the middle section of the large-span cantilever box-shaped beam 1 can be adjusted along the length direction of the large-span cantilever box-shaped beam as required, and the large-span cantilever box-shaped beam 1 is drilled, locked and bolted again after being adjusted, so that the purpose of quickly and effectively downwards pulling the middle section of the large-span cantilever box-shaped beam 1 is achieved, and the stability of a cantilever part is ensured.
Example 2:
large-span steel construction supporting component that encorbelments, the large-span box girder 1 that encorbelments that sets up including the level, the outer end of large-span box girder 1 that encorbelments is in unsettled state, the inner bottom sprag of large-span box girder 1 is at a vertical steel support's top, vertical steel support includes a hollow steel stand 2 be provided with top base 3 on the top lateral wall of hollow steel stand 2 support tightly on the top base 3 and placed large-span box girder 1 that encorbelments, the rear end of large-span box girder 1 that encorbelments extends the rear side of hollow steel stand 2, the corresponding end position of large-span box girder 1 that encorbelments through a plurality of vertical connecting bolt 4 with top base 3 realizes the bolt and links firmly install draw structure 6 in the vertical chamber 5 of square of hollow steel stand 2, draw structure 6 is used for realizing that the rear section of the large-span box girder 1 that encorbelments above it ties downwards to tie fixedly.
In any scheme, preferably, the lower end of the hollow steel upright post 2 is pre-buried and fixed below the ground 7, and a concrete reinforcing area 8 is poured in a foundation pit at the periphery of the hollow steel upright post; a plurality of side protection structures 9 are welded on the outer side wall of the hollow steel upright post 2.
Vertical steel support piece uses hollow steel column 2 as main support piece, it can be fixed under ground 7 through the lower extreme is pre-buried and the cooperation is pour the concrete and is consolidated and realize whole ground 7 below and support fixed fastness, still add a plurality of side supporting construction 9 under the prerequisite of single center support in order to further guarantee the intensity of side direction support in addition, can realize the stability of each side direction support effectively, guarantee whole hollow steel column 2's when receiving the inclined load stability and prevent the side direction slope ability.
In any of the above solutions, it is preferred that the bottom of each side supporting structure 9 is supported on the hardened ground 7 by means of a hinge seat 10, said hinge seat 10 being fixed to the ground 7 by means of several ground bolts.
And the hinged seats 10 of each side support are directly fixed on the hardened ground 7, so that the firmness of ground connection positioning can be ensured, and the structural strength of the side support is improved.
In any of the above schemes, preferably, the pull-down structure 6 includes a rigid welding square frame 11 movably sleeved on the outer side wall of the large-span cantilever box-shaped beam 1 above the center of the hollow steel column 2, a tie steel column 12 is arranged in the square vertical cavity 5 of the hollow steel column 2 below the rigid welding square frame 11, the top of the tie steel column 12 is fixedly connected with the rigid welding square frame 11 by welding, a horizontal steel pipe 13 is welded at the bottom of the tie steel column 12, and the horizontal steel pipe 13 is sleeved on a tie locking member.
The lower pulling structure 6 is limited mainly by a rigid welding square frame 11 during working, so that the lower pulling steel column 12 is matched to realize that the rear end of the connected large-span cantilever box-type beam 1 is subjected to downward pulling force, and a horizontal steel pipe 13 welded at the bottom of the pulling steel column 12 can be sleeved on a pulling locking piece to realize relative fixation with the hollow steel upright post 2 in the pulling process.
In any of the above solutions, it is preferable that a rear end tie is provided at the rear side of the hollow steel column 2.
The main purpose of the rear end drawknot piece is to realize the downward drawknot of the rear end of the large-span cantilever box beam 1 and effectively prevent the rear end from upwarping.
In any of the above schemes preferably, the rear end drawknot piece includes fixed welding and is in lower part welding lug seat 14 on the rear side lower part lateral wall of hollow steel column 2 the integrative welding in rear end of large-span box girder 1 has a back welding lug seat 15, back welding lug seat 15 with it is taut through the first anchor rope 16 that the slope set up between the welding lug seat 14 of lower part.
When the rear end fastener works, the first anchor cable 16 is in a tensioned state, so that the tension of the fastener can be effectively ensured to be in a working state, and the stability of the fastener is ensured.
In any of the above schemes, preferably, the tie locking member includes a horizontally disposed tie transverse bolt 17, the tie transverse bolt 17 has one side along the horizontal direction to sequentially pass through a corresponding right through hole 18 on the outer side wall of the hollow steel column 2, a central through cavity 19 of the horizontal steel pipe 13, and a left through hole 20 and extend to the outer side of the other side of the hollow steel column 2, and a locking nut 21 is screwed on the outer side wall of the left external thread of the tie transverse bolt 17.
The drawknot locking piece can directly penetrate through the central through cavity 19 of the corresponding horizontal steel pipe 13 through the drawknot transverse bolt 17 on the drawknot locking piece, and then the horizontal steel pipe 13 can be positioned by being locked and fixed on the outer side wall of the corresponding hollow steel upright post 2, so that the drawknot steel column 12 and the rigid welding square frame 11 which are fixedly connected with the horizontal steel pipe 13 in a welding way can be positioned, and the rear end of the large-span cantilever box-shaped beam 1 fixed and drawn through the rigid welding square frame 11 can be better abutted against the tops of the hollow steel upright post 2 and the top base 3.
In any of the above solutions, preferably, the locking nut 21 is locked to implement a multi-spot welding process with the tie cross bolt 17.
The screw thread locking and the multi-point welding can better prevent the nut from loosening caused by vibration.
In any of the above schemes, preferably, an anti-lifting connecting lug seat 22 is integrally formed on the right end surface of the bolt head 1701 at the right end of the pulling horizontal bolt 17, an anti-lifting upper lug seat 23 is fixedly bolted to the bottom of the middle section of the large-span cantilever box-shaped beam 1, and a front-end cantilever tensioning anchor cable 24 is connected between the anti-lifting upper lug seat 23 and the anti-lifting connecting lug seat 22 in a tensioning manner.
The front-end overhanging tensioning anchor cable 24 at the end part of the tie transverse bolt 17 can effectively tie the bottom of the middle section of the large-span overhanging box-shaped beam 1 downwards, effectively prevent the front end of the large-span overhanging box-shaped beam 1 from being lifted upwards, and improve the wind load resistance and the overall stability of the large-span overhanging box-shaped beam; in addition, the position of the anti-lifting upper lug seat 23 installed at the bottom of the middle section of the large-span cantilever box-shaped beam 1 can be adjusted along the length direction of the large-span cantilever box-shaped beam as required, and after the adjustment, the large-span cantilever box-shaped beam 1 is drilled, locked and bolted again, so that the purpose of rapidly and effectively downwards pulling and connecting the middle section of the large-span cantilever box-shaped beam 1 is achieved, and the stability of the cantilever part is ensured.
In any of the above solutions, it is preferable that the screw holes provided on the bolt head 1701 of the tie cross bolt 17 are fastened in the bolt holes on the right side outer side wall of the hollow steel column 2 by fitting corresponding screws 25, respectively.
After the horizontal tie bolt 17 is inserted, the fixed-point locking is realized by the plurality of screws 25 on the side wall of the horizontal tie bolt, so that the anti-rotation control of the horizontal tie bolt 17 can be effectively realized, and the firmness of the whole bolt on the outer side wall of the hollow steel upright post 2 is improved.
In any of the above solutions, it is preferable that a bead seat 26 is provided between the bottom of the top base 3 and the outer side wall of the hollow steel column 2.
The reinforcement base 26 can effectively enhance the connection and support strength between the bottom of the top base 3 and the hollow steel upright 2.
The specific working principle is as follows:
this steel construction supporting component is encorbelmented to large-span adopts the mode that the large-span encorbelmented to the large-span box girder 1 of encorbelmenting is as the main part of encorbelmenting, has set up vertical steel support piece here in order to guarantee the stability that overall structure supported simultaneously and has guaranteed the intensity that its below supported. The rear end of the large-span cantilever box-shaped beam 1 is fixed through the vertical connecting bolt piece 4 on the top base 3 of the hollow steel upright post 2, the bolting connection between the two can be effectively ensured, the connection strength is ensured, and meanwhile, the connection strength can be enhanced by utilizing a welding auxiliary mode on the butt part. Connect hollow steel column 2 after fixed and large-span box girder 1 of encorbelmenting and can realize continuing to drawknot down under the effect of pulldown structure 6 to further guarantee the stability of large-span box girder 1 rear end of encorbelmenting, prevent that it from appearing the condition that the rear end upwarps. The assembly can be effectively matched with a large-span cantilever structure, particularly, the stability of the integral cantilever of the beam structure can be effectively ensured and the strength of a vertical support is ensured aiming at the large-span cantilever beam structure; the large-span cantilever box-shaped beam 1 of the assembly can effectively realize the stable fixation of the contact part of the large-span cantilever box-shaped beam 1 and the top of the hollow steel upright post 2 at each vertical connecting bolt piece 4 and the pull-down structure 6 in the upright post, and meanwhile, the effective tying and fastening of the rear end, the abutting connection point and the front end of the whole large-span cantilever box-shaped beam 1 can be better ensured by adopting the double cooperation of the rear end tying piece and the front end cantilever tensioning anchor cable 24, so that the stability of the large-span cantilever box-shaped beam 1 in coping with large span and wind load state is integrally improved, and the bearing capacity and the safety in use are improved; the bottom of the hollow steel upright post 2 in the assembly is fixed by adopting a mode that the center is fixedly matched with a plurality of side supports to carry out side support fixing, so that the integral stability of the hollow steel upright post 2 can be further ensured, and the stability of the large-span cantilever box-type beam 1 at the upper end of the hollow steel upright post is further ensured; first anchor rope 16 that sets up is taut, front end is encorbelmented tensioning anchor rope 24 and can be restricted to each other effectively, mutually supports and plays the effect that both can realize the front end drawknot and can realize the rear end drawknot, adopts flexible anchor rope to install simultaneously and dismantles better, can realize simultaneously that the deformation of small amount realizes the buffering return, can make it possess certain flexibility and buffering volume according to the pretension degree when installing during the use.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification; to those skilled in the art, any alternative improvements or changes made to the embodiments of the present invention are all within the scope of the present invention.
The parts of the present invention not described in detail are the known techniques of those skilled in the art.
Claims (10)
1. Steel construction supporting component is encorbelmented to large-span, its characterized in that: the large-span box girder of encorbelmenting that sets up including the level, the outer end that the large-span box girder of encorbelmenting is in unsettled state, the inner bottom sprag of the large-span box girder of encorbelmenting is at a vertical steel support piece's top, vertical steel support piece includes a hollow steel stand be provided with the top base on the top lateral wall of hollow steel stand support tightly on the top base and place the large-span box girder of encorbelmenting, the rear end that the large-span box girder of encorbelmenting extends the rear side of hollow steel stand, the corresponding end position of the large-span box girder of encorbelmenting through a plurality of vertical connecting bolt spare with the top base realizes the bolt and links firmly the vertical intracavity of square of hollow steel stand is installed and is drawn the structure down, draw down the structure and be used for realizing that the rear section of the large-span box girder of encorbelmenting above it draws the knot downwards to fix.
2. The large-span cantilever steel structural support assembly of claim 1, wherein: the pull-down structure comprises a rigid welding square frame movably sleeved on the outer side wall of the large-span cantilever box-shaped beam above the center of the hollow steel upright, a tie steel column is arranged in a square vertical cavity of the hollow steel upright below the rigid welding square frame, the top of the tie steel column is fixedly connected with the rigid welding square frame in a welding mode, a horizontal steel pipe is welded at the bottom of the tie steel column, and the horizontal steel pipe is sleeved on a tie locking piece.
3. The large-span cantilever steel structural support assembly of claim 2, wherein: and a rear end pulling piece is arranged on the rear side of the hollow steel upright post.
4. The large-span cantilever steel structural support assembly of claim 3, wherein: the rear end drawknot piece includes fixed welding and is in lower part welding ear seat on the rear side lower part lateral wall of hollow steel stand the integrative welding of rear end of the large-span box girder of encorbelmenting has a back welding ear seat, back welding ear seat with it is taut through the first anchor rope that the slope set up between the welding ear seat of lower part.
5. The large-span cantilever steel structural support assembly of claim 4, wherein: the horizontal bolt of drawknot has one side to pass in proper order along the horizontal direction right-hand member through-hole, the central through-cavity of horizontal steel pipe, the left end through-hole that correspond on the lateral wall of hollow steel stand and extend to the opposite side outside of hollow steel stand a lock nut has been closed soon on the left end external screw thread lateral wall of horizontal bolt of drawknot.
6. The large-span cantilever steel structural support assembly of claim 5, wherein: and the locking nut and the tie transverse bolt realize multi-point welding treatment after being locked.
7. The large-span cantilever steel structural support assembly of claim 6, wherein: the anchor bolt is characterized in that an anti-lifting connecting lug seat is integrally formed on the right end face of a bolt head at the right end of the drawknot transverse bolt, an anti-lifting upper lug seat is fixedly bolted to the bottom of the middle section of the large-span cantilever box-shaped beam, and the anti-lifting upper lug seat is connected with a front-end cantilever tensioning anchor rope in a tensioning mode between the anti-lifting connecting lug seats.
8. The large-span cantilever steel structural support assembly of claim 7, wherein: and each screw hole arranged on the bolt head of the tie transverse bolt is fastened in the bolt connecting hole on the outer side wall on the right side of the hollow steel stand column through a matched and corresponding screw.
9. The large-span cantilever steel structural support assembly of claim 8, wherein: and a reinforcing rib seat is arranged between the bottom of the top base and the outer side wall of the hollow steel upright post.
10. The large-span cantilever steel structural support assembly of claim 9, wherein: the lower ends of the hollow steel upright columns are pre-buried and fixed under the ground, and concrete reinforcing areas are poured in foundation pits around the hollow steel upright columns;
and a plurality of side protection structures are welded on the outer side wall of the hollow steel upright post.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221815357.1U CN217811586U (en) | 2022-07-15 | 2022-07-15 | Large-span overhanging steel structure supporting component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221815357.1U CN217811586U (en) | 2022-07-15 | 2022-07-15 | Large-span overhanging steel structure supporting component |
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| Publication Number | Publication Date |
|---|---|
| CN217811586U true CN217811586U (en) | 2022-11-15 |
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|---|---|---|---|
| CN202221815357.1U Expired - Fee Related CN217811586U (en) | 2022-07-15 | 2022-07-15 | Large-span overhanging steel structure supporting component |
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| Country | Link |
|---|---|
| CN (1) | CN217811586U (en) |
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2022
- 2022-07-15 CN CN202221815357.1U patent/CN217811586U/en not_active Expired - Fee Related
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