CN111734136A - Vertical sliding device for displacement one-way control - Google Patents
Vertical sliding device for displacement one-way control Download PDFInfo
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- CN111734136A CN111734136A CN202010775445.2A CN202010775445A CN111734136A CN 111734136 A CN111734136 A CN 111734136A CN 202010775445 A CN202010775445 A CN 202010775445A CN 111734136 A CN111734136 A CN 111734136A
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 38
- 238000010276 construction Methods 0.000 abstract description 24
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- 238000005096 rolling process Methods 0.000 description 7
- 230000005484 gravity Effects 0.000 description 4
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/18—Adjusting tools; Templates
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Abstract
In order to release the additional stress of the outrigger truss and solve the problem that the outrigger truss cannot be fixedly connected in time in the construction process of the integral structure of the building, eliminate the influence of the outrigger truss on the construction process and improve the construction efficiency, the invention provides a vertical sliding device for displacement one-way control, which comprises a truss left connecting plate, a truss right connecting plate, a sliding limiting device and a sliding track, wherein the truss left connecting plate and the truss right connecting plate are movably connected through the sliding track and relatively slide in the vertical direction; the sliding limiting device is arranged between the truss left connecting plate and the truss right connecting plate, and the truss right connecting plate slides unidirectionally relative to the truss left connecting plate through the sliding limiting device.
Description
Technical Field
The invention belongs to the technical field of construction engineering construction, and particularly relates to a vertical sliding device for displacement one-way control.
Background
The continuous increase of the height of the building structure can cause the problems of the reduction of the lateral rigidity of the whole structure of the building, the lengthening of the basic period of the structure and the like. Under the action of lateral force, the lateral displacement of the structure is increased, the bottom is pulled to different degrees, and the P-delta effect of the structure is intensified.
Through years of research and practice, the engineering industry successfully adopts a mode of arranging a horizontal cantilever reinforcing layer to improve the lateral rigidity of the structure so as to control the lateral displacement of the structure. The principle of the outrigger truss is that the outer frame and the core barrel are coordinated to play a role in a consistent manner, so that under the action of horizontal load, the outer frame column on one side generates tensile force, and the outer frame column on the other side generates pressure, so that an anti-overturning moment with an effect opposite to that of the outer horizontal load is formed, and the rotation and the bending of the outer frame column and the core barrel are limited, thereby improving the lateral rigidity of the structure, and ensuring the integrity and the stability of the structure.
However, the arrangement of the horizontal reinforcing layer causes the internal force of the frame-core tube structural member to be redistributed, so that the magnitude and direction of the internal force of the inner tube, the shear wall, the frame column and the beam are greatly changed. If all the outer columns can participate in the integral bending resistance, the outer columns can be stretched or compressed, and larger compressive stress and tensile stress can be generated in the outer columns due to the fact that the distance between the outer columns and the neutral axis is larger than the distance between the flange of the core tube and the neutral axis; outrigger trusses have a greater impact on the stiffness and stability of the structure, and thus, earlier installation is more beneficial to the stiffness and overall stability of the structure.
However, at the same time, the vertical deformation difference (due to shrinkage creep, self-weight and other factors) between the outer frame and the core tube will cause additional internal force of the outrigger truss, and the earlier the connection, the more obvious the additional internal force caused by the deformation difference is, which is disadvantageous to the structure.
At present, the academic world and the engineering world are relatively consistent in terms of temporary locking of an extending arm structure and an outer frame column in a construction stage; and after the construction of the main body structure is finished, permanently locking the cantilever structure and the outer frame column. Namely, the mode of hinging in the construction stage and fixedly connecting after completion is adopted. However, in this method, the outrigger truss cannot be fixed to the outer frame column in time in the construction stage, and there is an obstacle to the construction process, that is, some processes must be performed after fixed connection, which directly affects the construction.
Disclosure of Invention
In order to release the additional stress of the outrigger truss and solve the problem that the outrigger truss cannot be fixedly connected in time in the construction process of the integral structure of the building, eliminate the influence of the outrigger truss on the construction process and improve the construction efficiency, the invention provides the vertical sliding device for the displacement one-way control.
The invention discloses a technical scheme of a vertical sliding device for displacement one-way control, which comprises the following steps:
a vertical sliding device for displacement one-way control comprises a truss left connecting plate, a truss right connecting plate, a sliding limiting device and a sliding track, wherein the truss left connecting plate and the truss right connecting plate are movably connected through the sliding track and relatively slide in the vertical direction; the sliding limiting device is arranged between the truss left connecting plate and the truss right connecting plate, and the truss right connecting plate slides unidirectionally relative to the truss left connecting plate through the sliding limiting device.
The invention relates to a vertical sliding device for displacement one-way control, which is used for connecting two sections of outrigger trusses respectively connected with different building structures. Because the truss left connecting plate and the truss right connecting plate are movably connected through the sliding rails and relatively slide in the vertical direction, when stress is generated between different building structures due to differential deformation, the truss left connecting plate and the truss right connecting plate can slide mutually, so that the stress is released, and the construction quality is ensured.
In addition, before connecting the two sections of outrigger trusses, the vertical deformation difference of building structures on two sides of the outrigger trusses can be judged in advance, and the sliding direction between the truss left connecting plate and the truss right connecting plate is ensured to be the sliding direction limited by the sliding limiting device. The sliding limiting device can ensure the one-way sliding between the truss left connecting plate and the truss right connecting plate. When the vertical deformation difference trend of the building structures on the two sides of the outrigger truss is temporarily changed due to external force or other reasons, the sliding limiting device can prevent reverse sliding, and the relative stability of the left connecting plate and the right connecting plate of the truss is ensured, so that the relative stability of the building structures on the two sides of the outrigger truss is realized, the smooth proceeding of the whole construction of the building structures is ensured, and construction conditions are created for certain processes which can be performed after the outrigger truss is fixedly connected, thereby eliminating the influence of the outrigger truss on the construction process, and improving the construction efficiency.
Further, in the vertical sliding device for displacement one-way control, it is specific that the sliding track sets up in the both sides between truss left side link plate and the truss right side link plate, the sliding track include vertical sliding channel way and with vertical sliding channel matched with vertical sliding guide, vertical sliding channel way and vertical sliding guide are fixed in respectively on truss left side link plate and the truss right side link plate.
Further, in the vertical sliding device for unidirectional displacement control, specifically, the vertical sliding channel is a C-shaped channel, and the vertical sliding guide rail is a T-shaped guide rail.
Further, in the vertical sliding device for displacement one-way control, the sliding limiting device comprises a fixture block and a roller, one side of the fixture block is fixedly connected with the truss right connecting plate, the other side of the fixture block is close to the truss left connecting plate and provided with a triangular groove, and the roller is arranged in the triangular groove.
Setting:
the included angle between the inclined plane of the triangular groove and the left connecting plate of the truss is theta;
the friction coefficient between the rolling shaft and the truss left connecting plate is mu;
the gravity G borne by the roller is far smaller than the pressure F generated by stress, so the gravity G borne by the roller can be ignored;
when the truss right connecting plate is subjected to external force and forms a trend of moving upwards relative to the truss left connecting plate, the inclined plane of the triangular groove applies a pressure F vertical to the inclined plane to the rolling shaft;
therefore, after F is decomposed, the pressure F1 of the roller to the left connecting plate of the truss is F cos theta, and the thrust F2 of the inclined surface of the triangular groove to the roller is F sin theta;
therefore, the static friction force F between the roller and the left connecting plate of the truss is mu x F cos theta, and the direction is opposite to F2;
therefore, as long as F2 is less than or equal to F, the right truss connecting plate cannot move upwards relative to the left truss connecting plate;
substituting F2 and F, wherein F sin theta is less than or equal to mu F cos theta, and mu is more than or equal to tan theta;
namely, when mu is more than or equal to tan theta, the right connecting plate of the truss cannot move upwards relative to the left connecting plate of the truss.
When the truss right connecting plate is subjected to external force to form a downward movement trend relative to the truss left connecting plate, the inclined plane of the triangular groove does not apply pressure on the rolling shaft, so that the rolling shaft can move downward only by overcoming small static friction force, or the rolling shaft moves downward due to losing the support of the inclined plane of the triangular groove, and the downward movement of the truss right connecting plate relative to the truss left connecting plate is not hindered.
Further, in the vertical sliding device for unidirectional displacement control, specifically, the top surface of the triangular groove is horizontally arranged.
Further, in the vertical sliding device for displacement one-way control, in order to prevent the roller from accidentally slipping in the limiting process, a platform is arranged between the roller and the inclined surface of the triangular groove, a platform is arranged between the roller and the truss left connecting plate, and the contact surface of the platform and the roller is matched with the roller. The platform is movably contacted with the inclined plane of the triangular groove and the left connecting plate; the platform and the roller can be in movable contact or fixedly connected.
Furthermore, in the vertical sliding device for displacement one-way control, a termination block is arranged at the lower part of the sliding limiting device and fixedly connected with the truss left connecting plate. When the stop block is contacted with the sliding limiting device, the sliding limiting device is locked, and the outrigger truss is fixedly connected with the building structure.
Drawings
FIG. 1 is a schematic view of a vertical slide for unidirectional control of displacement in accordance with the present invention;
FIG. 2 is a cross-sectional view of a vertical slide for unidirectional control of displacement of the present invention;
FIG. 3 is a schematic view of a slide retainer for a vertical slide with unidirectional control of displacement according to the present invention;
FIG. 4 is a cross-sectional view of a slide stop of a vertical slide for unidirectional control of displacement of the present invention;
FIG. 5 is a schematic view of an application of a vertical sliding device for unidirectional control of displacement according to the present invention;
fig. 6 is a force analysis diagram of a vertical sliding device for displacement unidirectional control according to the present invention.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples. Advantages and features of the present invention will become apparent from the following description and from the claims. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.
Example 1:
referring to fig. 1 and 5, a technical solution of a vertical sliding device for unidirectional displacement control according to the present embodiment is as follows:
a vertical sliding device for displacement one-way control comprises a truss left connecting plate 1, a truss right connecting plate 2, a sliding limiting device 3 and a sliding track 4, wherein the truss left connecting plate 1 and the truss right connecting plate 2 are movably connected through the sliding track 4 and slide relatively in the vertical direction; the sliding limiting device 3 is arranged between the truss left connecting plate 1 and the truss right connecting plate 2, and the truss right connecting plate 2 slides unidirectionally relative to the truss left connecting plate 1 through the sliding limiting device 3.
The vertical sliding device for unidirectional displacement control of the embodiment is used for connecting two sections of outrigger trusses 200 which are respectively connected with different building structures. Because the truss left connecting plate 1 and the truss right connecting plate 2 are movably connected through the sliding rail 4 and relatively slide in the vertical direction, when stress is generated between different building structures due to differential deformation, the truss left connecting plate 1 and the truss right connecting plate 2 can slide mutually, so that the stress is released, and the construction quality is ensured.
In addition, before connecting two sections of outrigger trusses 200, the vertical deformation difference of the building structures at two sides of the outrigger truss 200 may be pre-judged first, so as to ensure that the sliding direction between the truss left connecting plate 1 and the truss right connecting plate 2 is the sliding direction limited by the sliding limiting device 3. The sliding limiting device 3 can ensure the one-way sliding between the truss left connecting plate 1 and the truss right connecting plate 2. When the vertical deformation difference trend of the building structures at the two sides of the outrigger truss 200 is temporarily changed due to external force or other reasons, the sliding limiting device 3 can prevent reverse sliding, and ensure the relative stability of the left connecting plate 1 and the right connecting plate 2 of the truss, thereby realizing the relative stability of the building structures at the two sides of the outrigger truss 200, not only ensuring the smooth proceeding of the whole construction of the building structures, but also creating construction conditions for certain processes which can be performed after the outrigger truss 200 is fixedly connected, thereby eliminating the influence of the outrigger truss 200 on the construction process and improving the construction efficiency.
As a preferred embodiment, referring to fig. 1 and 2, in the vertical sliding device for unidirectional displacement control, specifically, the sliding rail 4 is disposed at two sides between the truss left connecting plate 1 and the truss right connecting plate 2, the sliding rail 4 includes a vertical sliding channel 41 and a vertical sliding rail 42 matched with the vertical sliding channel 41, and the vertical sliding channel 41 and the vertical sliding rail 42 are fixed on the truss left connecting plate 1 and the truss right connecting plate 2, respectively.
In a preferred embodiment, referring to fig. 1 and 2, in the vertical sliding device for unidirectional displacement control, specifically, the vertical sliding channel 41 is a C-shaped channel, and the vertical sliding guide rail 42 is a T-shaped guide rail.
As a preferred embodiment, referring to fig. 3, 4 and 6, in the vertical sliding device for unidirectional displacement control, the sliding limiting device 3 includes a fixture block 31 and a roller 32, one side of the fixture block 31 is fixedly connected to the truss right connecting plate 2, the other side of the fixture block 31 is disposed near the truss left connecting plate 1 and is provided with a triangular groove 33, and the roller 32 is disposed in the triangular groove 33.
Setting:
the included angle between the inclined plane of the triangular groove 33 and the truss left connecting plate 1 is theta;
the friction coefficient between the rolling shaft 32 and the truss left connecting plate 1 is mu;
the gravity G applied to the roller 32 is negligible, since the gravity G of the roller 32 is much smaller than the pressure F generated by the stress;
when the truss right connecting plate 2 is subjected to external force to form a trend of moving upwards relative to the truss left connecting plate 1, the inclined surface of the triangular groove 33 applies a pressure F vertical to the inclined surface to the rolling shaft 32;
therefore, after F is decomposed, the pressure F1 of the roller 32 against the truss left connecting plate 1 is F cos θ, and the thrust F2 of the inclined surface of the triangular groove 33 against the roller 32 is F sin θ;
therefore, the static friction force F between the roller 32 and the truss left connecting plate 1 is μ × F × cos θ, and the direction is opposite to F2;
therefore, as long as F2 is less than or equal to F, the truss right connecting plate 2 cannot move upwards relative to the truss left connecting plate 1;
substituting F2 and F, wherein F sin theta is less than or equal to mu F cos theta, and mu is more than or equal to tan theta;
namely, when mu is more than or equal to tan theta, the right connecting plate 2 of the truss cannot move upwards relative to the left connecting plate 1 of the truss.
When the truss right connecting plate 2 is subjected to external force to form a downward movement trend relative to the truss left connecting plate 1, the inclined plane of the triangular groove 33 does not apply pressure on the roller 32, so that the roller 32 can move downward only by overcoming small static friction force, or the roller can move downward due to losing the support of the inclined plane of the triangular groove 33, and the truss right connecting plate 2 cannot be prevented from moving downward relative to the truss left connecting plate 1.
In a preferred embodiment, referring to fig. 3 and 4, in the vertical sliding device for unidirectional displacement control, in particular, the top surface of the triangular groove 33 is horizontally arranged.
In a preferred embodiment, referring to fig. 4, in the vertical sliding device for displacement unidirectional control, in order to prevent the roller 32 from accidentally slipping during the limiting process, a platform 35 is arranged between the roller 32 and the inclined surface of the triangular groove 33, a platform 35 is arranged between the roller 32 and the truss left connecting plate 1, and the contact surface of the platform 35 and the roller 32 is matched with the roller 32. The platform 35 is movably contacted with the inclined plane of the triangular groove 33 and the platform 35 is movably contacted with the left connecting plate 1; the platform 35 may be in movable contact with the roller 32 or may be fixedly connected thereto.
In a preferred embodiment, referring to fig. 2, 3 and 4, in the vertical sliding device for unidirectional displacement control, a termination block 5 is arranged at the lower part of the sliding limiting device 3, and the termination block 5 is fixedly connected with the truss left connecting plate 1. When the stop block 5 contacts the sliding limiting device 3, the sliding limiting device 3 is locked, and the outrigger truss 200 is fixedly connected with the building structure.
The above description is only for the purpose of describing the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, and any variations and modifications made by those skilled in the art based on the above disclosure are within the scope of the appended claims.
Claims (7)
1. The vertical sliding device for displacement one-way control is characterized by comprising a truss left connecting plate (1), a truss right connecting plate (2), a sliding limiting device (3) and a sliding track (4), wherein the truss left connecting plate (1) and the truss right connecting plate (2) are movably connected through the sliding track (4) and relatively slide in the vertical direction; the sliding limiting device (3) is arranged between the truss left connecting plate (1) and the truss right connecting plate (2), and the truss right connecting plate (2) slides in one direction relative to the truss left connecting plate (1) through the sliding limiting device (3).
2. The vertical sliding device for unidirectional displacement control according to claim 1, wherein the sliding track (4) is arranged on both sides between the truss left connecting plate (1) and the truss right connecting plate (2), the sliding track (4) comprises a vertical sliding channel (41) and a vertical sliding guide rail (42) matched with the vertical sliding channel (41), and the vertical sliding channel (41) and the vertical sliding guide rail (42) are respectively fixed on the truss left connecting plate (1) and the truss right connecting plate (2).
3. The vertical sliding device for unidirectional control of displacement according to claim 1, characterized in that the vertical sliding channel (41) is a C-shaped channel and the vertical sliding guide (42) is a T-shaped guide.
4. The vertical sliding device for unidirectional displacement control according to claim 1, wherein the sliding limiting device (3) comprises a clamping block (31) and a roller (32), one side of the clamping block (31) is fixedly connected with the truss right connecting plate (2), the other side of the clamping block (31) is arranged close to the truss left connecting plate (1) and provided with a triangular groove (33), and the roller (32) is arranged in the triangular groove (33).
5. Vertical sliding device for unidirectional control of displacement, according to claim 4, characterized in that the top surface of the triangular groove (33) is arranged horizontally.
6. The vertical sliding device for unidirectional control of displacement according to claim 4, characterized in that a platform (35) is arranged between the roller (32) and the inclined surface of the triangular groove (33), a platform (35) is arranged between the roller (32) and the truss left connecting plate (1), and the contact surface of the platform (35) and the roller (32) is matched with the roller (32).
7. The vertical sliding device for unidirectional displacement control according to claim 1, wherein a termination block (5) is arranged at the lower part of the sliding limiting device (3), and the termination block (5) is fixedly connected with the truss left connecting plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010775445.2A CN111734136B (en) | 2020-08-05 | 2020-08-05 | Vertical sliding device for displacement one-way control |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010775445.2A CN111734136B (en) | 2020-08-05 | 2020-08-05 | Vertical sliding device for displacement one-way control |
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| CN111734136A true CN111734136A (en) | 2020-10-02 |
| CN111734136B CN111734136B (en) | 2020-11-10 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201420309Y (en) * | 2009-03-17 | 2010-03-10 | 上海市机械施工有限公司 | Novel connection node suitable for cantilever truss structure |
| CN105040851A (en) * | 2015-08-05 | 2015-11-11 | 清华大学 | Extensible arm truss system replaceable after earthquake |
| CN108930373A (en) * | 2018-09-30 | 2018-12-04 | 上海电力学院 | A kind of balustrade |
| CN208202202U (en) * | 2018-05-16 | 2018-12-07 | 西安建筑科技大学 | A kind of semi-girder truss main diagonal of band bending surrender Wasted-energy steel plate |
| CN208733809U (en) * | 2018-07-27 | 2019-04-12 | 中冶建工集团有限公司 | A kind of semi-girder truss temporary connection plate and its connection structure |
-
2020
- 2020-08-05 CN CN202010775445.2A patent/CN111734136B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201420309Y (en) * | 2009-03-17 | 2010-03-10 | 上海市机械施工有限公司 | Novel connection node suitable for cantilever truss structure |
| CN105040851A (en) * | 2015-08-05 | 2015-11-11 | 清华大学 | Extensible arm truss system replaceable after earthquake |
| CN208202202U (en) * | 2018-05-16 | 2018-12-07 | 西安建筑科技大学 | A kind of semi-girder truss main diagonal of band bending surrender Wasted-energy steel plate |
| CN208733809U (en) * | 2018-07-27 | 2019-04-12 | 中冶建工集团有限公司 | A kind of semi-girder truss temporary connection plate and its connection structure |
| CN108930373A (en) * | 2018-09-30 | 2018-12-04 | 上海电力学院 | A kind of balustrade |
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