CN109853391B - Combined device for actively adjusting stress deformation of steel tower structure - Google Patents
Combined device for actively adjusting stress deformation of steel tower structure Download PDFInfo
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- CN109853391B CN109853391B CN201910124391.0A CN201910124391A CN109853391B CN 109853391 B CN109853391 B CN 109853391B CN 201910124391 A CN201910124391 A CN 201910124391A CN 109853391 B CN109853391 B CN 109853391B
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Abstract
The invention provides a combined device for actively adjusting the stress deformation of a steel tower structure, which belongs to the field of building construction and comprises a telescopic part, a locking part and a push-pull part, wherein the telescopic part is connected with the locking part; the telescopic part comprises an outer pipe and an inner pipe which are in circumferential limiting connection, one end of the telescopic part is used for being connected with the steel tower, and the other end of the telescopic part is used for being connected with the lattice support; the push-pull part comprises a driving piece for driving the telescopic part to stretch and retract, one end of the driving piece is connected with the outer pipe, and the other end of the driving piece is connected with the inner pipe; the locking part comprises at least one locking component, and the locking component comprises a first supporting plate arranged on the outer tube, a second supporting plate arranged on the inner tube and corresponding to the first supporting plate, and a locking rod respectively matched with the first supporting plate and the second supporting plate. The combined device has an active adjusting function, can improve the internal stress of the structure, adjust the deformation of the structure, and improve the safety reserve of the structure and the construction efficiency by reducing the internal stress of the combined device.
Description
Technical Field
The invention relates to the field of building construction, in particular to a combined device for actively adjusting the stress deformation of a steel tower structure.
Background
With the continuous development of bridge construction industry in China, steel structure bridges have been widely used due to the characteristics of industrialization, assembly, light dead weight, strong structural plasticity and the like. The common steel tower is A-shaped, Y-shaped and H-shaped, and the steel tower is approximately vertical. In recent years, novel steel tower structural forms such as arched steel towers and space distortion steel towers have appeared, the construction process is influenced by design calculation accuracy, machining accuracy, installation accuracy and measures, structural internal stress, welding stress, temperature change and the like, and certain internal stress exists in the steel tower in the construction stage, namely, the steel tower is in a non-stress-free installation state, and when the structural form is complex, the internal stress level even exceeds the stress generated by permanent load and live load, so that the structural safety reserve is reduced, materials are not used, and the structure works with diseases and the like.
The structure installation without stress at the present stage cannot be realized, the deformation condition cannot be completely controlled, and the construction installation precision and the internal stress have extremely large relation with the construction team level and temporary measure setting. And the stress and deformation adjustment can not be actively carried out under the influence of construction operation and cost, and the durability of the structure is not good in the long term, so that the internal stress and the deformation of the structure are necessary to be properly improved in the construction process.
Disclosure of Invention
The invention provides a combined device for actively adjusting the stress deformation of a steel tower structure, and aims to solve the problems of the combined device for actively adjusting the stress deformation of the steel tower structure in the prior art.
The invention is realized in the following way:
a combined device for actively adjusting the stress deformation of a steel tower structure comprises a telescopic part, a locking part and a push-pull part;
the telescopic part comprises an outer pipe and an inner pipe which are in circumferential limiting connection, one end of the telescopic part is used for being connected with the steel tower, and the other end of the telescopic part is used for being connected with the lattice support;
the push-pull part comprises a driving piece for driving the telescopic part to stretch and retract, one end of the driving piece is connected with the outer tube, and the other end of the driving piece is connected with the inner tube;
the locking part comprises at least one locking component, and the locking component comprises a first supporting plate arranged on the outer tube, a second supporting plate arranged on the inner tube and corresponding to the first supporting plate, and a locking rod respectively matched with the first supporting plate and the second supporting plate.
In one embodiment of the invention, the inner wall of the outer tube is provided with an axial first limit rib, and the outer wall of the inner tube is provided with an axial second limit rib for acting with the first limit rib.
In one embodiment of the present invention, the first limiting rib includes two ribs distributed in V-shape, a limiting section is formed between the two ribs of the first limiting rib, and the second limiting rib is inserted into the limiting section.
In one embodiment of the present invention, the push-pull portion includes a plurality of driving assemblies disposed in parallel, and the driving assemblies include the driving member and two circumferential hinge seats, one of the circumferential hinge seats is fixedly connected to the outer tube, the other circumferential hinge seat is fixedly connected to the inner tube, and one end of the driving member is hinged to one of the circumferential hinge seats, and the other end of the driving member is hinged to the other circumferential hinge seat.
In one embodiment of the invention, the driving member is a bi-directional jack.
In one embodiment of the invention, the telescopic part is hinged with the steel tower and provided with a first hinge shaft, the telescopic part is hinged with the lattice support and provided with a second hinge shaft, and the first hinge shaft is perpendicular to the second hinge shaft.
In one embodiment of the invention, the telescopic part is hinged with the steel tower or the lattice support through a hinged support, the hinged support comprises a hinged female support and a hinged male support, one end of the hinged male support is fixedly connected with the telescopic part, the other end of the hinged male support is provided with a hinged support plate, a first jack is arranged on the hinged support plate, one end of the hinged female support is provided with an inserting space for accommodating the hinged support plate, and the side wall of the inserting space is provided with a second jack corresponding to the first jack.
In one embodiment of the present invention, the locking lever includes a lever body and a plurality of clips;
the clamping piece is in locking sliding connection with the rod body;
the body of rod passes the first backup pad, the body of rod is in the inboard part of first backup pad forms first spacing section, the both ends of first spacing section all are provided with the fastener.
In one embodiment of the invention, a second limiting section is formed by the part of the rod body passing through the inner side of the second supporting plate, and the clamping pieces are arranged at two ends of the second limiting section.
In one embodiment of the invention, a strain gauge is provided at an end of the outer tube adjacent the inner tube.
The beneficial effects of the invention are as follows: the telescopic part and the locking part of the combined device for actively adjusting the stress deformation of the steel tower structure are matched, so that continuous connection of the steel tower and the lattice support at different intervals is realized, and the interval between the steel tower and the lattice support can be accurately adjusted. Along with the construction, the distance between the steel tower and the lattice support at different positions is required to be adjusted, or when the stress of the combined device is optimized, the whole length of the telescopic part can be changed through the push-pull part. The combined device for actively adjusting the stress deformation of the steel tower structure has an active adjusting function, can improve the internal stress of the structure and adjust the deformation of the structure, can improve the safe storage of the structure by reducing the internal stress of the device, and improves the construction work efficiency and the construction operation convenience.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a first view angle of a combination device for actively adjusting stress deformation of a steel tower structure according to an embodiment of the present invention in practical application;
fig. 2 is a schematic structural diagram of a second view angle of the combined device for actively adjusting the stress deformation of a steel tower structure according to the embodiment of the present invention when the combined device is actually applied;
FIG. 3 is a schematic view of a combination device for actively adjusting the stress deformation of a steel tower structure according to an embodiment of the present invention in a practical application;
FIG. 4 is a cross-sectional view of a telescoping section provided by an embodiment of the present invention;
FIG. 5 is a schematic view of a driving assembly according to an embodiment of the present invention;
FIG. 6 is a schematic view of a hinge support according to an embodiment of the present invention;
fig. 7 is a schematic structural view of a locking assembly according to an embodiment of the present invention.
Icon: 010-a combined device for actively adjusting the stress deformation of the steel tower structure; 030-steel towers; 050-lattice supports; 100-telescoping part; 200-locking part; 300-push-pull part; 110-an inner tube; 130-an outer tube; 311-driving piece; 210-a locking assembly; 211-a first support plate; 213-a second support plate; 215-a lock lever; 131-a first limit rib; 111-second limit ribs; 310-a drive assembly; 313-peripheral hinge seats; 150-hinging support; 151-hinging and supporting the mother seat; 153-hinging the male seat; 171-a first hinge shaft; 173-a second hinge shaft; 2151-a rod body; 2153-bolt pairs; 101-stress meter.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "orientation" or "positional relationship" are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and to simplify the description, rather than to indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature may include first and second features directly contacting each other, either above or below a second feature, or through additional features contacting each other, rather than directly contacting each other. Moreover, the first feature being above, over, and on the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being below, beneath, and beneath the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is less level than the second feature.
Examples
The present embodiment provides a combination device 010 for actively adjusting the stress deformation of a steel tower structure, referring to fig. 3, the combination device 010 for actively adjusting the stress deformation of the steel tower structure includes a telescopic portion 100, a locking portion 200 and a push-pull portion 300;
the telescopic part 100 comprises an outer pipe 130 and an inner pipe 110 which are in circumferential limit connection, one end of the telescopic part 100 is used for being connected with a steel tower 030, and the other end is used for being connected with a lattice support 050;
the push-pull part 300 includes a driving member 311 for driving the expansion part 100 to expand and contract, one end of the driving member 311 is connected with the outer tube 130, and the other end is connected with the inner tube 110;
the locking part 200 includes at least one locking assembly 210, and the locking assembly 210 includes a first support plate 211 provided on the outer tube 130, a second support plate 213 provided on the inner tube 110 corresponding to the first support plate 211, and a capture lever 215 respectively engaged with the first support plate 211 and the second support plate 213.
Continuous connection of the steel tower 030 and the lattice support 050 at different intervals is achieved through matching of the telescopic part 100 and the locking part 200, and the interval between the steel tower 030 and the lattice support 050 can be accurately adjusted. With the construction, the distance between the steel tower 030 and the lattice support 050 at different positions is required to be adjusted, or the stress of the combination device is optimized, so that the overall length of the telescopic part 100 can be changed through the push-pull part 300.
Referring to fig. 4, specifically, an inner wall of the outer tube 130 is provided with an axial first limiting rib 131, and an outer wall of the inner tube 110 is provided with an axial second limiting rib 111 for acting with the first limiting rib 131. The circumferential limit connection of the inner tube 110 and the outer tube 130 is realized through the cooperation of the first limit rib 131 and the second limit rib 111, so that the shear stress on the driving piece 311 of the push-pull part 300 can be relieved, and the normal operation of the driving piece 311 is ensured. In this embodiment, the first limiting rib 131 includes two ribs distributed in a V shape, a limiting section is formed between the two ribs of the first limiting rib 131, and the second limiting rib 111 is inserted into the limiting section. Thus, locking is achieved in both rotation directions, and for further enhancing stability, 16 first limit ribs 131 are uniformly distributed in the circumferential direction of the inner ring of the outer tube 130, and correspondingly, 16 second limit ribs 111 are uniformly distributed in the circumferential direction of the outer ring of the inner tube 110.
Referring to fig. 5, in the present embodiment, the push-pull portion 300 includes two driving assemblies 310, and the two driving assemblies 310 are symmetrically disposed on two sides of the telescopic portion 100. The driving assembly 310 includes a driving member 311 and two circumferential hinge bases 313, one circumferential hinge base 313 is fixedly connected to the outer tube 130 by welding, the other circumferential hinge base 313 is fixedly connected to the inner tube 110 by welding, one end of the driving member 311 is hinged to one circumferential hinge base 313, and the other end is hinged to the other circumferential hinge base 313. Since the inner tube 110 and the outer tube 130 have the difference in outer diameter, the driving member 311 is connected in a hinge manner, and thus, the internal stress generated in the connection with the end during the movement of the driving member 311 can be prevented. In this embodiment, the driving member 311 is a bidirectional jack, which is simple to operate, safe and stable. In other embodiments, the driving member 311 may be selected according to the actual stress or the gap size of the construction site, so long as the driving member 311 can stretch under a large tensile force or a large compressive force.
Referring to fig. 6, the telescopic part 100 is hinged to the steel tower 030 or the lattice support 050 through a hinge support 150, the hinge support 150 includes a hinge support female seat 151 and a hinge support male seat 153, one end of the hinge support male seat 153 is fixedly connected with the telescopic part 100, the other end is provided with a hinge support plate, a first jack is provided on the hinge support plate, one end of the hinge support female seat 151 is provided with an insertion space for accommodating the hinge support plate, and a second jack corresponding to the first jack is provided on a side wall of the insertion space. The bolts are inserted into the second insertion holes and the first insertion holes, so that the hinge support male seat 153 and the hinge support female seat 151 are hinged, and further the telescopic part 100 is hinged with the steel tower 030 or the lattice support 050. The pin in the hinge support 150 where the telescopic part 100 is hinged with the steel tower 030 forms a first hinge shaft 171, the pin in the hinge support 150 where the telescopic part 100 is hinged with the lattice support 050 forms a second hinge shaft 173, and the first hinge shaft 171 is disposed perpendicular to the second hinge shaft 173. The first hinge shaft 171 and the second hinge shaft 173, which are vertically disposed, can realize two degrees of freedom hinge, resolving various stresses perpendicular to the axial direction of the telescopic portion 100.
Referring to fig. 7, a plurality of locking bars 215 are disposed between the first supporting plate 211 and the second supporting plate 213, and stress is distributed by the plurality of locking bars 215, so as to ensure stability of connection. The locking rod 215 comprises a rod body 2151 and a plurality of clamping pieces, and the clamping pieces are in lockable sliding connection with the rod body 2151; in this embodiment, the rod body 2151 is a threaded rod, the clamping member is a bolt pair 2153, the bolt pair 2153 includes two bolts, and the anti-loosening can be realized by generating an opposite force between the two bolts, so that the bolt pair 2153 can be stably fixed at one position of the threaded rod, and when the position of the bolt pair 2153 needs to be changed, the anti-loosening can be realized by sequentially moving the two bolts.
The body of rod 2151 passes first backup pad 211, and body of rod 2151 forms first spacing section in the inboard part of first backup pad 211, and the both ends of first spacing section all are provided with bolt pair 2153, and the distance between two bolt pairs 2153 can be slightly greater than the thickness of first backup pad 211, and bolt pair 2153 produces the adhesion with first backup pad 211 when avoiding follow-up adjustment.
The part of body of rod 2151 passing the inboard of second backup pad 213 forms the spacing section of second, and the both ends of the spacing section of second all are provided with bolt pair 2153, and the distance between two bolt pairs 2153 can be slightly greater than the thickness of second backup pad 213, avoids bolt pair 2153 and second backup pad 213 to produce the adhesion during the follow-up adjustment.
In order to facilitate subsequent adjustment, a stress gauge 101 is disposed at an end of the outer tube 130 near the inner tube 110, and an axial stress between the outer tube 130 and the inner tube 110 of the telescopic portion 100 can be detected by the stress gauge 101.
The application method of the combined device 010 for actively adjusting the stress deformation of the steel tower structure provided by the invention comprises the following steps:
when the time is shortened: the tension and compression state of the telescopic part 100 is detected by the stress gauge 101, the driving piece 311 is started to offset the tension or compression force on the locking part 200, the bolt pair 2153 on the first supporting plate 211 and the bolt pair 2153 on the second supporting plate 213 are loosened, the driving piece 311 performs the cylinder shrinkage action, the total length of the telescopic part 100 is shortened, the stress condition of the steel tower 030 is detected in real time, when the requirement is met, the bolt pair 2153 on the locking part 200 is adjusted and screwed, the locking of the inner pipe 110 and the outer pipe 130 is realized, the driving piece 311 is unloaded, and the load is transmitted to the locking part 200.
When the rubber is stretched: the tension and compression state of the telescopic part 100 is detected by the stress gauge 101, the driving piece 311 is started to offset the tension or compression force on the locking part 200, the bolt pair 2153 on the first supporting plate 211 and the bolt pair 2153 on the second supporting plate 213 are loosened, the driving piece 311 performs the cylinder stretching action, the total length of the telescopic part 100 is stretched, the stress condition of the steel tower 030 is detected in real time, when the requirement is met, the bolt pair 2153 on the locking part 200 is adjusted and screwed, the locking of the inner pipe 110 and the outer pipe 130 is realized, the driving piece 311 is unloaded, and the load is transmitted to the locking part 200.
Referring to fig. 1 and 2, based on the above-mentioned usage method, the active adjustment method for the stress deformation of the steel tower 030 is as follows:
the steel tower 030 and the lattice support 050 are installed in segments, when the steel tower 030 is installed to the elevation of the combined device 010 for actively adjusting the stress deformation of the steel tower structure, the combined device 010 for actively adjusting the stress deformation of the steel tower structure is installed, and three groups of combined devices 010 for actively adjusting the stress deformation of the steel tower structure are installed at the unified elevation.
The stress state of the steel tower 030 is detected through stress and deformation observation instrument equipment which is arranged on the steel tower 030 component in advance, and when the stress state of the steel tower 030 needs to be adjusted, the combined device 010 for actively adjusting the stress deformation of the steel tower structure is started.
When the steel tower 030 needs to be tilted inwards, three groups of combined devices 010 for actively adjusting the stress deformation of the steel tower structure are respectively shortened along the length direction, and the tilting tension of the steel tower 030 is given; when the steel tower 030 needs to be camber, three groups of combined devices 010 for actively adjusting the structural stress deformation of the steel tower are respectively elongated along the length direction, so as to give camber thrust to the steel tower 030; when the steel tower 030 needs to incline forwards and backwards, the outer two groups of combined devices 010 for actively adjusting the structural stress deformation of the steel tower respectively extend and shorten, and a pushing force and a pulling force are given to the steel tower 030, so that the steel tower 030 is in a forwards and backwards inclined state.
The telescopic part 100 and the locking part 200 of the combined device 010 for actively adjusting the stress deformation of the steel tower structure are matched, so that continuous connection of the steel tower 030 and the lattice support 050 at different intervals is realized, and the interval between the steel tower 030 and the lattice support 050 can be accurately adjusted. With the construction, the distance between the steel tower 030 and the lattice support 050 at different positions is required to be adjusted, or the stress of the combination device is optimized, so that the overall length of the telescopic part 100 can be changed through the push-pull part 300. The combined device 010 for actively adjusting the stress deformation of the steel tower structure has an active adjusting function, can improve the internal stress of the structure and adjust the deformation of the structure, can improve the safe storage of the structure by reducing the internal stress of the device, and improves the construction efficiency and the construction operation convenience.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and variations may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The combined device for actively adjusting the stress deformation of the steel tower structure is characterized by comprising a telescopic part, a locking part and a push-pull part;
the telescopic part comprises an outer pipe and an inner pipe which are in circumferential limiting connection, one end of the telescopic part is used for being connected with the steel tower, and the other end of the telescopic part is used for being connected with the lattice support;
the push-pull part comprises a driving piece for driving the telescopic part to stretch and retract, one end of the driving piece is connected with the outer tube, and the other end of the driving piece is connected with the inner tube;
the locking part comprises at least one locking component, and the locking component comprises a first supporting plate arranged on the outer tube, a second supporting plate arranged on the inner tube and corresponding to the first supporting plate, and a locking rod respectively matched with the first supporting plate and the second supporting plate;
the inner wall of the outer tube is provided with an axial first limit rib, and the outer wall of the inner tube is provided with an axial second limit rib for acting with the first limit rib;
the push-pull part comprises a plurality of driving components which are arranged in parallel, the driving components comprise driving pieces and two peripheral surface hinging seats, one peripheral surface hinging seat is fixedly connected to the outer tube, the other peripheral surface hinging seat is fixedly connected to the inner tube, one end of each driving piece is hinged to one peripheral surface hinging seat, and the other end of each driving piece is hinged to the other peripheral surface hinging seat.
2. The combination device for actively adjusting the stress deformation of the steel tower structure according to claim 1, wherein the first limiting rib comprises two ribs distributed in a V shape, a limiting interval is formed between the two ribs of the first limiting rib, and the second limiting rib is inserted into the limiting interval.
3. The combination for active adjustment of the stress deformation of a steel tower structure according to claim 1, wherein the driving member is a bi-directional jack.
4. The combination device for actively adjusting the stress deformation of a steel tower structure according to claim 1, wherein the telescopic part is hinged with the steel tower and provided with a first hinge shaft, the telescopic part is hinged with the lattice support and provided with a second hinge shaft, and the first hinge shaft is perpendicular to the second hinge shaft.
5. The combination device for actively adjusting the stress deformation of the steel tower structure according to claim 4, wherein the telescopic part is hinged with the steel tower or the lattice support through a hinged support, the hinged support comprises a hinged female support and a hinged male support, one end of the hinged male support is fixedly connected with the telescopic part, the other end of the hinged male support is provided with a hinged support plate, a first jack is arranged on the hinged support plate, one end of the hinged female support is provided with an inserting space for accommodating the hinged support plate, and the side wall of the inserting space is provided with a second jack corresponding to the first jack.
6. The combination device for actively adjusting the stress deformation of a steel tower structure according to claim 1, wherein the locking rod comprises a rod body and a plurality of clamping pieces;
the clamping piece is in locking sliding connection with the rod body;
the body of rod passes the first backup pad, the body of rod is in the inboard part of first backup pad forms first spacing section, the both ends of first spacing section all are provided with the fastener.
7. The combination device for actively adjusting the stress deformation of the steel tower structure according to claim 6, wherein the portion of the rod body passing through the inner side of the second supporting plate forms a second limiting section, and both ends of the second limiting section are provided with the clamping pieces.
8. The combination for active adjustment of the stress deformation of a steel tower structure according to claim 1, wherein a stress gauge is provided at the end of the outer tube near the inner tube.
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