CN215887902U - Bridge pin-connected panel prevents roof beam friction pendulum support that falls - Google Patents
Bridge pin-connected panel prevents roof beam friction pendulum support that falls Download PDFInfo
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- CN215887902U CN215887902U CN202122242704.8U CN202122242704U CN215887902U CN 215887902 U CN215887902 U CN 215887902U CN 202122242704 U CN202122242704 U CN 202122242704U CN 215887902 U CN215887902 U CN 215887902U
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Abstract
The utility model relates to a bridge assembled type anti-falling beam friction swing support which comprises an upper base plate, a lower base plate, an upper slope adjusting plate, a double-spherical crown plate, a lower slope adjusting plate, an upper limiting shaft and a lower limiting shaft, wherein the upper slope adjusting plate is arranged on the upper base plate; the lower surface of the upper seat plate is fixedly provided with an upper slope plate, and the upper surface of the lower seat plate is fixedly provided with a lower leveling plate; the upper surface of the lower flat-adjusting plate is provided with an arc concave surface b; the double-spherical crown plate is arranged in the arc concave surface b; the upper slope adjusting plate is provided with an arc-shaped concave surface a, and the arc-shaped concave surface a is arranged on the upper arc-shaped surface of the double-spherical-surface crown plate; the double-spherical crown plate is characterized in that a central through hole a is formed in the middle of the double-spherical crown plate, an upper limiting shaft and a lower limiting shaft are respectively arranged in the middle of the arc-shaped concave surface a of the upper slope adjusting plate and the arc-shaped concave surface b of the lower slope adjusting plate, the upper limiting shaft and the lower limiting shaft are respectively inserted into the central through hole a from top to bottom, and a space is reserved between the upper limiting shaft and the lower limiting shaft. The utility model can realize the functions of shock absorption, shock insulation and beam falling prevention of the friction pendulum support.
Description
Technical Field
The utility model relates to the field of bridge shockproof pieces, in particular to a bridge assembled type anti-falling beam friction pendulum support.
Background
The bridge in the high-intensity area usually needs to consider the earthquake-resistant design, and the general earthquake-resistant systems at home and abroad comprise two types: one is a ductile anti-seismic design, which utilizes the plastic deformation of a pier under the earthquake condition to prolong the structural period and consume the earthquake energy; the other method adopts an earthquake reduction and isolation design, namely, devices such as an earthquake reduction and isolation support, a damper, an energy dissipation element and the like are utilized to realize an earthquake resistant effect, and the structural period is prolonged and earthquake energy is dissipated by plastic deformation or increased damping of the members connecting the upper structure and the lower structure of the bridge, so that earthquake response is reduced. When the first earthquake-resistant design method is adopted, the size of the pier column needs to be increased, the reinforcing bars need to be reinforced, the pier column is difficult to repair after an earthquake, and the construction cost and the maintenance cost are increased. The design of the seismic isolation and reduction concept is the most popular design method at present, and seismic response of a bridge can be effectively reduced and seismic energy is weakened by adopting seismic isolation and reduction supports such as a high-damping seismic isolation rubber support, a lead core seismic isolation rubber support, a friction pendulum type seismic isolation and reduction support, an elastic-plastic steel seismic isolation support and the like. In particular, the requirements of common concrete continuous beam structures, steel box beam structures and the like on the vertical bearing capacity of the bridge bearing are high, and considering the durability of the bearing, the friction pendulum bearing evolved from the spherical bearing has natural advantages and is one of the best choices.
The friction pendulum support is compared in other and subtracts that the shock insulation support not only vertical bearing capacity is big, has great shock insulation displacement, and structure horizontal dimension is little moreover, and the durability is strong. When the existing bridge adopts the seismic isolation design, the influence of rare earthquakes is considered, the friction pendulum support is required to have a certain beam falling prevention function, and the shock absorption and seismic isolation functions of the friction pendulum support can be effectively guaranteed to be exerted within the design range under the E2 earthquake.
At present, three main anti-falling beam measures are provided for a friction pendulum support, one measure is that steel wire ropes are arranged on an upper steel plate and a lower steel plate of the friction pendulum support, and the anti-falling beam measure rarely meets an earthquake is realized through a circumferential steel wire rope structure, but the structure is specially designed around the upper steel plate and the lower steel plate, so that stress concentration is easily caused by the structural design, the steel wire ropes are pulled off, the anti-falling beam function is invalid, the anti-falling beam measure can only be arranged in the moving direction of a one-way movable support and the periphery of a two-way movable support, and the anti-falling beam measure is not easily arranged in the limiting direction of a fixed support and the one-way movable support; the other is that bosses are arranged on an upper steel plate and a lower steel plate of the friction pendulum support, and the bosses are used for limiting, so that when the anti-falling beam force is larger, the height and the thickness of the bosses are correspondingly increased, and the cost is also increased; the last structure is that the upper steel plate and the lower steel plate of the friction pendulum support are provided with the clamping tenons, and the beam falling prevention function is realized through the clamping tenons integrated with the upper steel plate and the lower steel plate, but the clamping tenons of the structure have limited limiting capacity, the clamping tenons are made of materials consistent with the materials of the upper steel plate and the lower steel plate, generally Q355 or Q345 steel, the allowable stress is small, the diameter of the clamping tenons is large, the machining is difficult, and the cost is raised indirectly.
At present, a friction pendulum support structure meets the requirement of preventing the beam from falling through improving the design safety factor, but no relevant standard reference exists, and the bridge construction cost is indirectly increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a bridge assembled type anti-falling beam friction pendulum support which not only can realize the shock absorption and shock isolation functions of the friction pendulum support, but also realizes the anti-falling beam function of the support through an upper limiting shaft and a lower limiting shaft which are specially designed, and is suitable for highways, municipal administration, railways, urban rail transit bridges and the like with the anti-falling beam requirement in high-intensity areas.
The technical scheme of the utility model is as follows:
the bridge assembled anti-falling beam friction swing support comprises an upper base plate, a lower base plate, an upper slope adjusting plate, a double-spherical crown plate, a lower slope adjusting plate, an upper limiting shaft and a lower limiting shaft;
the lower surface of the upper seat plate is fixedly provided with an upper slope plate, and the upper surface of the lower seat plate is fixedly provided with a lower leveling plate;
the middle part of the upper surface of the lower adjusting plate is provided with an arc concave surface b corresponding to the lower arc surface of the double-spherical crown plate; the double spherical crown plates are arranged in the arc concave surfaces b, and the lower arc surfaces of the double spherical crown plates are in fit contact with the arc concave surfaces b; the middle part of the lower surface of the upper slope adjusting plate is provided with an arc concave surface a corresponding to the arc surface on the double-spherical crown plate; the arc concave surface a of the upper slope adjusting plate is arranged on the upper arc surface of the double-spherical crown plate and is in matched contact with the upper arc surface of the double-spherical crown plate to cover the upper arc surface of the whole double-spherical crown plate;
the double-spherical crown plate is characterized in that a central through hole a penetrating through the upper arc-shaped surface and the lower arc-shaped surface is formed in the middle of the double-spherical crown plate, an upper limiting shaft and a lower limiting shaft are respectively arranged in the middles of the arc-shaped concave surfaces a and b of the upper slope-adjusting plate and the lower slope-adjusting plate, the diameters of the upper limiting shaft and the lower limiting shaft are smaller than the inner diameter of the central through hole a, the upper limiting shaft and the lower limiting shaft are respectively inserted into the central through hole a from top to bottom, and a space is reserved between the upper limiting shaft and the lower limiting shaft.
The upper seat plate is connected with the bridge body, and the lower seat plate is connected with the bridge pier.
The double-spherical crown plate comprises a double-spherical base body, an upper arc-shaped surface sliding plate and a lower arc-shaped surface sliding plate; the upper surface and the lower surface of the double-spherical substrate are cambered surfaces which are in mirror symmetry with each other, the edges of the upper surface and the lower surface of the double-spherical substrate are respectively provided with an upper surface groove and a lower surface groove, and the upper cambered surface sliding plate and the lower cambered surface sliding plate are respectively embedded on the upper surface and the lower surface of the double-spherical substrate through the upper surface groove and the lower surface groove; the middle parts of the upper arc-shaped surface sliding plate and the lower arc-shaped surface sliding plate are respectively provided with a central through hole b; the upper limiting shaft and the lower limiting shaft are respectively inserted into the central through hole a from top to bottom through the central through hole b;
the upper surface of the upper arc-shaped surface sliding plate and the lower surface of the lower arc-shaped surface sliding plate respectively form an upper arc-shaped surface and a lower arc-shaped surface of the double-spherical-surface crown plate, and the upper arc-shaped surface and the lower arc-shaped surface are respectively in matched contact with the arc-shaped concave surface a of the upper slope adjusting plate and the arc-shaped concave surface b of the lower slope adjusting plate.
The middle part of the lower surface of the upper slope adjusting plate is provided with an upper arc-shaped middle plate, and the lower surface of the upper arc-shaped middle plate is an arc-shaped concave surface a;
the middle part of the lower adjusting plate is provided with a lower arc-shaped middle plate, and the upper surface of the lower arc-shaped middle plate is an arc-shaped concave surface b; the middle parts of the upper arc-shaped middle plate and the lower arc-shaped middle plate are respectively provided with a central through hole c;
the upper limiting shaft sequentially penetrates through the central through hole c of the upper arc-shaped middle plate and the central through hole b of the upper arc-shaped surface sliding plate from top to bottom and extends into the central through hole a;
and the lower limiting shaft sequentially penetrates through the central through hole c of the lower arc-shaped middle plate and the central through hole b of the lower arc-shaped surface sliding plate from bottom to top and extends into the central through hole a.
The spherical diameters of the arc concave surface a, the arc concave surface b, the upper surface of the upper arc surface sliding plate and the lower surface of the lower arc surface sliding plate are consistent.
The upper and lower slope adjusting plates are respectively provided with a mounting groove and a central through hole d, the upper end of the upper limiting shaft is provided with a convex ring a corresponding to the mounting groove, and the lower end of the lower limiting shaft is provided with a convex ring b corresponding to the mounting groove; the upper limiting shaft and the lower limiting shaft are respectively matched with the mounting grooves on the upper slope adjusting plate and the lower adjusting plate through a convex ring a and a convex ring b and are fixedly mounted through bolts, and the upper limiting shaft and the lower limiting shaft respectively penetrate through a central through hole d on the upper slope adjusting plate and the lower adjusting plate and are inserted into the central through hole a through a central through hole c and a central through hole b; the inner diameter of the central through hole d is consistent with the diameters of the upper limiting shaft and the lower limiting shaft.
The inner diameter of the central through hole b is consistent with that of the central through hole a, and the inner diameter of the central through hole c is smaller than that of the central through hole a; the inner diameter of the central through hole c is larger than the diameters of the upper limiting shaft and the lower limiting shaft.
A gap of 2-5 mm is formed between the top of the upper limiting shaft and the lower surface of the upper seat plate; the bottom of the lower limiting shaft and the upper surface of the lower seat plate are provided with a gap of 2-5 mm.
The upper seat plate and the lower seat plate are square plates, upper sleeves are respectively arranged at the corners of the upper surface of the upper seat plate, and lower sleeves are respectively arranged at the corners of the lower surface of the lower seat plate.
The utility model ensures the seismic isolation and reduction requirements of the bridge under the earthquake conditions of E1 and E2 through the specially designed limit shaft with the separated structure, and can also meet the requirements under rare earthquakes. When an earthquake exceeding E2 occurs, based on a friction pair structure formed by an upper slope adjusting plate, a lower slope adjusting plate and a double-spherical-surface crown plate, the shock absorption function of the friction pendulum support is realized through mutual swinging, a good shock insulation function is realized through a double-curved-surface structure of the double-spherical-surface crown plate, and a good beam dropping function is realized.
The utility model adopts the principle design that the upper curvature and the lower curvature are equal or approximately equal, the upper structure and the lower structure are in mirror symmetry, the realization of the anti-falling beam structure is convenient, the support cost is saved, and the field installation is convenient.
The upper seat plate is connected with the bridge body and the lower seat plate is connected with the bridge pier body, the built-in upper limiting shaft and lower limiting shaft hardly affect the external space of the bridge support, and compared with other anti-falling beam supports, the support is not interfered with bridge auxiliary facilities such as a concrete stop block and the like during installation. And, this kind of go up spacing axle and the structure of spacing axle separation down for the support equipment is convenient, and if spacing axle is cut off by the earthquake, only need after the earthquake change spacing axle can, reduced the cost.
According to the concrete requirements of the bridge, the upper part and the lower part of the support are respectively provided with the upper slope adjusting plate and the lower slope adjusting plate, so that the flatness of the upper part and the lower part when the support is installed is ensured, the installation precision is ensured, and the error is reduced.
Drawings
FIG. 1 is a schematic structural diagram of a bridge assembly type anti-falling beam friction pendulum support of the utility model;
FIG. 2 is a schematic view of the present invention with the upper seat panel removed after the corner cut 1/4 has been removed;
FIG. 3 is an exploded view of a double spherical crown plate, an upper arc-shaped middle plate, and a lower arc-shaped middle plate of the present invention;
FIG. 4 is a schematic structural view of a mounting groove and a central through hole d of the up-regulation ramp plate of the present invention;
FIG. 5 is a cross-sectional view of the assembled anti-drop beam friction pendulum support of the bridge of the present invention;
FIG. 6 is a first extreme position forming diagram of the assembled anti-drop beam friction pendulum support of the bridge of the present invention;
FIG. 7 is a diagram of a second extreme position of the assembled anti-drop friction pendulum support for a bridge of the present invention;
the names and serial numbers of the parts in the figure are as follows:
1-upper seat plate, 2-lower seat plate, 3-upper slope adjusting plate, 4-double spherical crown plate, 5-lower flat adjusting plate, 6-upper limiting shaft, 7-lower limiting shaft, 8-central through hole a, 9-double spherical base body, 10-upper arc surface sliding plate, 11-lower arc surface sliding plate, 12-upper surface groove, 13-lower surface groove, 14-central through hole b, 15-upper arc middle plate, 16-lower arc middle plate, 17-central through hole c, 18-mounting groove, 19-central through hole d, 20-convex ring a, 21-convex ring b, 22-upper sleeve and 23-lower sleeve.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
Example 1
As shown in fig. 1-7, the bridge assembly type anti-falling beam friction pendulum support comprises an upper seat plate 1, a lower seat plate 2, an upper slope adjusting plate 3, a double-spherical crown plate 4, a lower adjusting plate 5, an upper limiting shaft 6 and a lower limiting shaft 7;
an upper slope adjusting plate 3 is fixedly arranged on the lower surface of the upper seat plate 1, and a lower flat plate 5 is fixedly arranged on the upper surface of the lower seat plate 2;
the middle part of the upper surface of the lower adjusting plate 5 is provided with an arc concave surface b corresponding to the lower arc surface of the double-spherical crown plate 4; the double spherical crown plate 4 is arranged in the arc-shaped concave surface b, and the lower arc-shaped surface of the double spherical crown plate 4 is in fit contact with the arc-shaped concave surface b; the middle part of the lower surface of the upper slope adjusting plate 3 is provided with an arc concave surface a corresponding to the arc surface on the double-spherical crown plate 4; the arc concave surface a of the upper slope adjusting plate 3 is arranged on the upper arc surface of the double-spherical-surface crown plate 4 and is in matched contact with the upper arc surface of the double-spherical-surface crown plate 4 to cover the upper arc surface of the whole double-spherical-surface crown plate 4;
the middle part of the double-spherical crown plate 4 is provided with a central through hole a8 penetrating through the upper arc-shaped surface and the lower arc-shaped surface, the middle parts of the arc-shaped concave surfaces a and b of the upper slope-adjusting plate 3 and the lower slope-adjusting plate 5 are respectively provided with an upper limiting shaft 6 and a lower limiting shaft 7, the diameters of the upper limiting shaft 6 and the lower limiting shaft 7 are smaller than the inner diameter of the central through hole a8, the upper limiting shaft 6 and the lower limiting shaft 7 are respectively inserted into the central through hole a8 from top to bottom, and a space is reserved between the upper limiting shaft 6 and the lower limiting shaft 7.
The upper seat plate 1 is connected with a bridge body, and the lower seat plate 2 is connected with a bridge abutment.
The double-spherical crown plate 4 comprises a double-spherical base body 9, an upper arc-shaped surface sliding plate 10 and a lower arc-shaped surface sliding plate 11; the upper surface and the lower surface of the double-spherical substrate 9 are cambered surfaces which are in mirror symmetry with each other, the edges of the upper surface and the lower surface of the double-spherical substrate 9 are respectively provided with an upper surface groove 12 and a lower surface groove 13, and the upper cambered surface sliding plate 10 and the lower cambered surface sliding plate 11 are respectively embedded on the upper surface and the lower surface of the double-spherical substrate 9 through the upper surface groove 12 and the lower surface groove 13; the middle parts of the upper arc-shaped surface sliding plate 10 and the lower arc-shaped surface sliding plate 11 are respectively provided with a central through hole b 14; the upper limit shaft 6 and the lower limit shaft 7 are respectively inserted into the central through hole a8 from the upper part and the lower part through the central through hole b 14;
the upper surface of the upper arc-shaped surface sliding plate 10 and the lower surface of the lower arc-shaped surface sliding plate 11 respectively form an upper arc-shaped surface and a lower arc-shaped surface of the double-spherical crown plate 4, and are respectively in matched contact with the arc-shaped concave surface a of the upper slope adjusting plate 3 and the arc-shaped concave surface b of the lower slope adjusting plate 5.
An upper arc-shaped middle plate 15 is arranged in the middle of the lower surface of the upper slope adjusting plate 3, and the lower surface of the upper arc-shaped middle plate 15 is an arc-shaped concave surface a;
the middle part of the lower flat adjusting plate 5 is provided with a lower arc-shaped middle plate 16, and the upper surface of the lower arc-shaped middle plate 16 is an arc-shaped concave surface b; the middle parts of the upper arc-shaped middle plate 15 and the lower arc-shaped middle plate 16 are respectively provided with a central through hole c 17;
the upper limiting shaft 6 sequentially penetrates through the central through hole c of the upper arc-shaped middle plate 15 and the central through hole b14 of the upper arc-shaped surface sliding plate 10 from top to bottom and extends into the central through hole a 8;
the lower limiting shaft 7 sequentially penetrates through the central through hole c of the lower arc-shaped middle plate 16 and the central through hole b14 of the lower arc-shaped surface sliding plate 11 from bottom to top and extends into the central through hole a 8.
The diameters of the spherical surfaces of the arc concave surface a, the arc concave surface b, the upper surface of the upper arc surface sliding plate 10 and the lower surface of the lower arc surface sliding plate 11 are consistent.
The upper slope adjusting plate 3 and the lower slope adjusting plate 5 are respectively provided with an installation groove 18 and a central through hole d19, the upper end of the upper limiting shaft 6 is provided with a convex ring a20 corresponding to the installation groove 18, and the lower end of the lower limiting shaft 7 is provided with a convex ring b21 corresponding to the installation groove 18; the upper limiting shaft 6 and the lower limiting shaft 7 are respectively matched with the mounting grooves 18 on the upper slope adjusting plate 3 and the lower adjusting plate 5 through a convex ring a20 and a convex ring b21 and are fixedly mounted through bolts, and the upper limiting shaft 6 and the lower limiting shaft 7 are respectively inserted into a central through hole a8 through a central through hole c and a central through hole b14 and pass through central through holes d19 on the upper slope adjusting plate 3 and the lower adjusting plate 5; the inner diameter of the central through hole d19 is consistent with the diameters of the upper limiting shaft 6 and the lower limiting shaft 7.
The inner diameter of the central through hole b14 is consistent with that of the central through hole a8, and the inner diameter of the central through hole c17 is smaller than that of the central through hole a 8; the inner diameter of the central through hole c17 is larger than the diameters of the upper limiting shaft 6 and the lower limiting shaft 7.
A gap of 2-5 mm is formed between the top of the upper limiting shaft 6 and the lower surface of the upper seat plate 1; the bottom of the lower limiting shaft 7 and the upper surface of the lower seat plate 2 are provided with a gap of 2-5 mm.
The upper seat plate 1 and the lower seat plate 2 are square plates, upper sleeves 22 are respectively arranged at the corners of the upper surface of the upper seat plate 1, and lower sleeves 23 are respectively arranged at the corners of the lower surface of the lower seat plate 2.
Under the condition of earthquake, an upper spherical friction pair formed by the upper arc-shaped middle plate 15 and the upper arc-shaped surface sliding plate 10 and a lower spherical friction pair formed by the lower arc-shaped middle plate 16 and the lower arc-shaped surface sliding plate 11 swing mutually, the states of figures 6 and 7 are formed at the limit positions, the upper limiting shaft 6 limits the displacement expansion of the upper seat plate 1, and the lower limiting shaft 7 limits the displacement expansion of the double spherical crown plate 4.
The shock absorption function of the friction pendulum support is realized by the upper spherical friction pair and the lower spherical friction pair through splicing connection from top to bottom, the shock insulation function is realized by the double-curved-surface structure of the double-spherical crown plate 4, the lifting height of a beam body is h, the shock insulation displacement under the E2 earthquake working condition is S, and the beam falling prevention function is realized by the upper limiting shaft 4 and the lower limiting shaft 7.
Claims (9)
1. The utility model provides a bridge pin-connected panel prevents beam friction pendulum support that falls, includes upper seat board (1), lower bedplate (2), goes up slope board (3), two spherical crown boards (4), down adjusts flat board (5), goes up spacing axle (6), spacing axle (7) down, its characterized in that:
an upper slope adjusting plate (3) is fixedly arranged on the lower surface of the upper seat plate (1), and a lower slope adjusting plate (5) is fixedly arranged on the upper surface of the lower seat plate (2);
the middle part of the upper surface of the lower adjusting plate (5) is provided with an arc concave surface b corresponding to the lower arc surface of the double-spherical crown plate (4); the double-spherical crown plate (4) is arranged in the arc-shaped concave surface b, and the lower arc-shaped surface of the double-spherical crown plate (4) is in matched contact with the arc-shaped concave surface b; the middle part of the lower surface of the upper slope adjusting plate (3) is provided with an arc concave surface a corresponding to the arc surface on the double-spherical crown plate (4); the arc concave surface a of the upper slope adjusting plate (3) is arranged on the upper arc surface of the double-spherical crown plate (4) and is in matched contact with the upper arc surface of the double-spherical crown plate (4) to cover the upper arc surface of the whole double-spherical crown plate (4);
the double-spherical crown plate is characterized in that a central through hole a (8) penetrating through an upper arc-shaped surface and a lower arc-shaped surface is formed in the middle of the double-spherical crown plate (4), an upper limiting shaft (6) and a lower limiting shaft (7) are respectively arranged in the middle of an arc-shaped concave surface a and an arc-shaped concave surface b of the upper slope-adjusting plate (3) and the lower slope-adjusting plate (5), the diameters of the upper limiting shaft (6) and the lower limiting shaft (7) are smaller than the inner diameter of the central through hole a (8), the upper limiting shaft (6) and the lower limiting shaft (7) are respectively inserted into the central through hole a (8) from top to bottom, and a space is reserved between the upper limiting shaft (6) and the lower limiting shaft (7).
2. The bridge assembling type anti-falling beam friction pendulum support of claim 1, characterized in that: the upper seat plate (1) is connected with a bridge body, and the lower seat plate (2) is connected with a bridge pier.
3. The bridge assembling type anti-falling beam friction pendulum support of claim 1, characterized in that: the double-spherical crown plate (4) comprises a double-spherical base body (9), an upper arc-shaped surface sliding plate (10) and a lower arc-shaped surface sliding plate (11); the upper surface and the lower surface of the double-spherical substrate (9) are cambered surfaces which are in mirror symmetry with each other, the edges of the upper surface and the lower surface of the double-spherical substrate (9) are respectively provided with an upper surface groove (12) and a lower surface groove (13), and the upper arc-shaped surface sliding plate (10) and the lower arc-shaped surface sliding plate (11) are respectively embedded on the upper surface and the lower surface of the double-spherical substrate (9) through the upper surface groove (12) and the lower surface groove (13); the middle parts of the upper arc-shaped surface sliding plate (10) and the lower arc-shaped surface sliding plate (11) are respectively provided with a central through hole b (14); the upper limiting shaft (6) and the lower limiting shaft (7) are respectively inserted into the central through hole a (8) from top to bottom through the central through hole b (14);
the upper surface of the upper arc-shaped surface sliding plate (10) and the lower surface of the lower arc-shaped surface sliding plate (11) respectively form an upper arc-shaped surface and a lower arc-shaped surface of the double-spherical crown plate (4), and the upper arc-shaped surface and the lower arc-shaped surface are respectively in matched contact with the arc-shaped concave surface a of the upper slope adjusting plate (3) and the arc-shaped concave surface b of the lower slope adjusting plate (5).
4. The bridge assembling type anti-falling beam friction pendulum support of claim 3, characterized in that:
an upper arc-shaped middle plate (15) is arranged in the middle of the lower surface of the upper slope adjusting plate (3), and the lower surface of the upper arc-shaped middle plate (15) is an arc-shaped concave surface a;
a lower arc-shaped middle plate (16) is arranged in the middle of the lower adjusting plate (5), and the upper surface of the lower arc-shaped middle plate (16) is an arc-shaped concave surface b; the middle parts of the upper arc-shaped middle plate (15) and the lower arc-shaped middle plate (16) are respectively provided with a central through hole c (17);
the upper limiting shaft (6) sequentially penetrates through a central through hole c of the upper arc-shaped middle plate (15) and a central through hole b (14) of the upper arc-shaped surface sliding plate (10) from top to bottom and extends into the central through hole a (8);
the lower limiting shaft (7) sequentially penetrates through a central through hole c of the lower arc-shaped middle plate (16) and a central through hole b (14) of the lower arc-shaped surface sliding plate (11) from bottom to top and extends into the central through hole a (8).
5. The bridge assembling type anti-falling beam friction pendulum support of claim 4, characterized in that:
the diameters of the spherical surfaces of the arc concave surface a, the arc concave surface b, the upper surface of the upper arc surface sliding plate (10) and the lower surface of the lower arc surface sliding plate (11) are consistent.
6. The bridge assembling type anti-falling beam friction pendulum support of claim 5, characterized in that: the upper slope adjusting plate (3) and the lower slope adjusting plate (5) are respectively provided with an installation groove (18) and a central through hole d (19), the upper end of the upper limiting shaft (6) is provided with a convex ring a (20) corresponding to the installation groove (18), and the lower end of the lower limiting shaft (7) is provided with a convex ring b (21) corresponding to the installation groove (18); the upper limiting shaft (6) and the lower limiting shaft (7) are respectively matched with mounting grooves (18) on an upper slope adjusting plate (3) and a lower adjusting plate (5) through convex rings a (20) and b (21) and are fixedly mounted through bolts, and the upper limiting shaft (6) and the lower limiting shaft (7) are respectively inserted into a central through hole a (8) through a central through hole c and a central through hole b (14) and pass through central through holes d (19) on the upper slope adjusting plate (3) and the lower adjusting plate (5); the inner diameter of the central through hole d (19) is consistent with the diameters of the upper limiting shaft (6) and the lower limiting shaft (7).
7. The bridge assembled falling beam-falling prevention friction pendulum support saddle according to claim 5 or 6, wherein: the inner diameter of the central through hole b (14) is consistent with that of the central through hole a (8), and the inner diameter of the central through hole c (17) is smaller than that of the central through hole a (8); the inner diameter of the central through hole c (17) is larger than the diameters of the upper limiting shaft (6) and the lower limiting shaft (7).
8. The bridge assembling type anti-falling beam friction pendulum support of claim 6, characterized in that: a gap of 2-5 mm is formed between the top of the upper limiting shaft (6) and the lower surface of the upper seat plate (1); the bottom of the lower limiting shaft (7) and the upper surface of the lower seat plate (2) are provided with a gap of 2-5 mm.
9. The bridge assembling type anti-falling beam friction pendulum support of claim 1, characterized in that: the upper seat plate (1) and the lower seat plate (2) are square plates, upper sleeves (22) are respectively arranged at the corners of the upper surface of the upper seat plate (1), and lower sleeves (23) are respectively arranged at the corners of the lower surface of the lower seat plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122242704.8U CN215887902U (en) | 2021-09-16 | 2021-09-16 | Bridge pin-connected panel prevents roof beam friction pendulum support that falls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122242704.8U CN215887902U (en) | 2021-09-16 | 2021-09-16 | Bridge pin-connected panel prevents roof beam friction pendulum support that falls |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215887902U true CN215887902U (en) | 2022-02-22 |
Family
ID=80349001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122242704.8U Active CN215887902U (en) | 2021-09-16 | 2021-09-16 | Bridge pin-connected panel prevents roof beam friction pendulum support that falls |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215887902U (en) |
-
2021
- 2021-09-16 CN CN202122242704.8U patent/CN215887902U/en active Active
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