CN210322233U - Bridge safety evaluation device - Google Patents
Bridge safety evaluation device Download PDFInfo
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- CN210322233U CN210322233U CN201921340268.4U CN201921340268U CN210322233U CN 210322233 U CN210322233 U CN 210322233U CN 201921340268 U CN201921340268 U CN 201921340268U CN 210322233 U CN210322233 U CN 210322233U
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Abstract
The utility model belongs to the technical field of bridge check out test set, concretely relates to bridge safety evaluation device. The technical scheme is as follows: a bridge safety assessment device comprises a mobile platform, wherein a rotating mechanism is connected to the mobile platform; the other end of the rotating mechanism is connected with a support, the other end of the support is connected with a suspension platform, a through hole is formed in the suspension platform, a plurality of bearings are installed in the through hole, suspension balls are sleeved in the through hole, and ring surfaces of the bearings are respectively in contact with the suspension balls; the suspension ball is connected with a suspended weight mechanism, the suspension platform is provided with an angle dial used for indicating the angle of the suspended weight mechanism, and the angle dial is provided with angle scales. The utility model provides a can come bridge safety evaluation device of quick judgement bridge security through detecting each position slope condition on bridge surface.
Description
Technical Field
The utility model belongs to the technical field of bridge check out test set, concretely relates to bridge safety evaluation device.
Background
The bridge engineering is a life line engineering for harmonious development of the relationship society and the economy. Particularly, with the rapid development of the expressway in China and the construction of 12 national main trunks of national roads, the development center of gravity of the bridge industry is gradually changed from 'newly constructed' to 'managed maintenance'. However, in recent years, due to the obvious effects of factors such as overload, impact, illegal operation, natural disasters or environmental changes, the number of dangerous bridges in China is high, and major infrastructure safety accidents in China and abroad are frequent. In addition, 40% of bridges in China are built in the 90 th and before 20 th century, and the concentrated bridge disease exposure areas are concentrated 20-30 years after the bridges are built and put into use, so that the phenomenon that China inevitably caters to the aging of the bridges in a large range in advance can be predicted within 10-20 years in the future, and the bridges gradually enter the high-risk period.
The patent application number is CN200920151860. X's utility model discloses a device that carries out long-term, real-time multi-parameter's structure monitoring and security assessment to large-span bridge, including sensing device, signal conditioning device, data acquisition device and database server, especially sensing device connects signal conditioning device, and signal conditioning device connects data acquisition device, and data acquisition device connects database server, database server (connect a plurality of user operation terminals, the utility model discloses an all-round monitoring, security evaluation and real-time safety alarm to bridge construction have established the basis for the long-term safe use of bridge.
The device detects the bridge structure condition through each sensor and then transmits data to the server. The method can detect the character vibration frequency of the bridge and the like so as to judge the health condition of the bridge. However, the health condition of the bridge is also reflected in the conditions of deformation, damage and the like, and the device cannot detect the deformation of the bridge in real time. When the bridge generates a certain deformation, the surface of the bridge inclines or bends, and the inclination or bending degree of the bridge reflects the insecurity degree of the bridge. Therefore, the bridge can be safely evaluated by detecting the inclination or bending condition of each position on the surface of the bridge.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems existing in the prior art, the utility model aims to provide a bridge safety assessment device which can rapidly judge the safety of a bridge by detecting the inclined condition of each position on the surface of the bridge.
The utility model discloses the technical scheme who adopts does:
a bridge safety assessment device comprises a mobile platform, wherein a rotating mechanism is connected to the mobile platform; the other end of the rotating mechanism is connected with a support, the other end of the support is connected with a suspension platform, a through hole is formed in the suspension platform, a plurality of bearings are installed in the through hole, suspension balls are sleeved in the through hole, and ring surfaces of the bearings are respectively in contact with the suspension balls; the suspension ball is connected with a suspended weight mechanism, the suspension platform is provided with an angle dial used for indicating the angle of the suspended weight mechanism, and the angle dial is provided with angle scales.
Preferably, the weight suspension mechanism comprises a suspension rod, one end of the suspension rod is connected with the suspension ball, and the other end of the suspension rod is fixed with the weight suspension block; one end of the suspension ball close to the angle dial is fixed with an inclination angle pointer.
Preferably, the bottom of the suspension platform is fixed with a cover body, the suspension weight and the suspension rod are sleeved in the cover body, a plurality of touch switches are installed in the cover body, the cover body is provided with an alarm, and the touch switches are all electrically connected with the alarm.
Preferably, the circle center of the angle dial coincides with the center of the suspension ball, the two sides of the angle dial are symmetrical, and the angle scale on the symmetrical line of the angle dial is 0 degree.
Preferably, the rotating mechanism comprises a rotating platform, the rotating platform is fixed with one end of the support far away from the suspension platform, an annular groove is fixed on the moving platform, a plurality of balls are arranged in the annular groove, and the rotating platform is lapped on the balls; the movable platform is further fixed with a support rod, a central hole is formed in the rotating platform, the support rod penetrates through the central hole, a locking disc is fixed to the other end of the support rod, and a plurality of locking screws used for locking the locking disc and the rotating platform are installed on the locking disc.
Preferably, the locking disc is provided with angle scales, the center of the angle scales on the locking disc is overlapped with the center of the annular groove, and the rotating platform is provided with an azimuth pointer for indicating the angle of the rotating platform.
Preferably, a driving wheel and a plurality of driven wheels are installed at the bottom of the moving platform, a driving mechanism for driving the driving wheel to rotate is further installed on the moving platform, and the output end of the driving mechanism is connected with the driving wheel.
Preferably, the driving mechanism comprises a motor, an output shaft of the motor is connected with a speed reducer, the motor and the speed reducer are both mounted on the moving platform, an output shaft of the speed reducer is connected with a driving gear, the driving gear is meshed with a driven gear, and the driven gear is fixed with the driving gear.
The utility model has the advantages that:
1. the utility model discloses a plurality of bearings can support and hang the ball, and when hanging the ball and rotate, the bearing can be very easily at hanging ball surface roll. When the position of the mobile platform is inclined to a certain degree relative to the horizontal plane, the mobile platform, the bracket, the suspension platform, the angle dial scale and the like are correspondingly inclined. And the suspension ball is connected with a suspended weight mechanism, the suspended weight mechanism is always vertical to the horizontal plane under the action of gravity, and the suspended weight mechanism can incline relative to the suspension platform. Because the angle dial is fixed on the suspension platform, the suspension weight mechanism is offset relative to the angle dial, and the offset angle is indicated on the angle dial. When will the utility model discloses when removing each position on bridge surface, the degree of inclination of this position can show in real time, makes things convenient for the staff to judge bridge health status fast to the convenience makes the aassessment to the bridge security.
2. The weight can pull the suspension rod to be vertical to the horizontal plane all the time under the action of gravity, and then the suspension rod pulls the suspension ball to incline. When hanging the ball and vert on a plurality of bearings, the inclination pointer is corresponding verts, then the inclination degree that the inclination pointer can real-time indication suspension platform, also promptly the utility model discloses the slope condition on bridge surface of locating. Therefore, the utility model discloses can make things convenient for the staff in time to judge the bridge security through the real-time bridge surface slope condition of instructing of hanging oneself with heavy mechanism.
3. The cover body is fixed on the suspension platform, and then the cover body moves along with the suspension platform. When the suspension rod inclines to a certain degree relative to the cover body, the suspension weight block touches a touch switch in the cover body, and the touch switch triggers the alarm. Therefore, when the inclination of the surface of the bridge exceeds the limit, the alarm gives an alarm to prompt workers that the bridge is unsafe, and the evaluation work is simplified.
4. The center of a circle of the angle dial plate coincides with the center of the suspension ball, and the suspension weight mechanism directly indicates the inclination degree of the surface of the bridge without conversion, so that the inclination degree of the surface of the bridge can be more visually reflected.
5. The rotating platform can rotate on the ball, and after the rotating platform rotates to a proper angle, the locking disc and the rotating platform are locked by the locking screw. The angle dial is rotated to a corresponding angle and the surface of the bridge in that direction can be indicated on the angle dial by the suspension weight mechanism. Therefore, the inclination angles of the surfaces of the bridges in the vertical directions can be detected, so that the bridge safety judgment is more accurate.
6. When the rotating platform rotates, the azimuth pointer on the rotating platform can indicate the angle scale on the locking disc, so that the rotating angle of the rotating platform can be conveniently and accurately adjusted. Through control the utility model discloses a rotation position can be measured the degree of inclination on the bridge surface in arbitrary vertical direction, guarantees to measure the accuracy.
7. The driving mechanism can drive the driving wheel to rotate, the driving wheel and the driven wheel drive the moving platform to move, gradient detection is conveniently carried out on all positions of the bridge, and operation is convenient.
8. The motor can drive the reducer to act, the reducer drives the driving gear to rotate, and the driving gear drives the driven gear to rotate. Then driven gear can drive the action wheel and rotate, makes the utility model discloses can remove on the bridge surface wantonly, conveniently carry out the security aassessment to each position of bridge.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a partial block diagram of the present invention;
FIG. 3 is a schematic view of the structure of the rotating mechanism;
fig. 4 is a plan view of the rotating mechanism.
In the figure: 1-moving a platform; 2-a rotation mechanism; 3-a scaffold; 4-hanging the platform; 5-hanging balls; 6-a suspended weight mechanism; 7-angle dial; 8-a drive mechanism; 11-a driving wheel; 12-a driven wheel; 21-rotating the platform; 22-an annular groove; 23-a ball bearing; 24-a strut; 25-locking disc; 26-locking screws; 41-through holes; 42-a bearing; 43-a cover; 44-touch switch; 45-alarm; 61-a pendant; 62-a counterweight; 63-inclination angle pointer; 81-motor; 82-a reducer; 83-a drive gear; 84-a driven gear; 211-a central hole; 212-orientation pointer.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Example one
As shown in fig. 1, the bridge safety evaluation device of the present embodiment includes a mobile platform 1, and a rotating mechanism 2 is connected to the mobile platform 1; the other end of the rotating mechanism 2 is connected with a support 3, the other end of the support 3 is connected with a suspension platform 4, a through hole 41 is formed in the suspension platform 4, a plurality of bearings 42 are installed in the through hole 41, suspension balls 5 are sleeved in the through hole 41, and the ring surfaces of the bearings 42 are respectively contacted with the suspension balls 5; the suspension ball 5 is connected with a suspended weight mechanism 6, the suspension platform 4 is provided with an angle dial 7 for indicating the angle of the suspended weight mechanism 6, and the angle dial 7 is provided with angle scales.
The suspension balls 5 can roll on the bearings 42 under the pull of the suspension weight mechanism 6. When the position of the movable platform 1 is inclined to a certain degree relative to the horizontal plane, the movable platform 1, the bracket 3, the suspension platform 4, the angle dial 7 and the like are correspondingly inclined. And the suspension ball 5 is connected with a suspended weight mechanism 6, the suspended weight mechanism 6 is always vertical to the horizontal plane under the action of gravity, and then the suspended weight mechanism 6 can incline relative to the suspension platform 4. Since the angle scale 7 is fixed to the suspension platform 4, the suspension weight mechanism 6 is offset with respect to the angle scale 7, and the offset angle is indicated on the angle scale 7. When will the utility model discloses when removing each position on bridge surface, the degree of inclination of this position can show in real time, makes things convenient for the staff to judge bridge health status fast to the convenience makes the aassessment to the bridge security.
As shown in fig. 2, the suspended weight mechanism 6 includes a suspended rod 61, one end of the suspended rod 61 is connected with the suspended ball 5, and a suspended weight block 62 is fixed at the other end of the suspended rod 61; an inclination pointer 63 is fixed to one end of the suspension ball 5 near the angle dial 7.
The suspension weight 62 can always pull the suspension rod 61 to be vertical to the horizontal plane under the action of gravity, and the suspension rod 61 pulls the suspension ball 5 to tilt. When hanging ball 5 and verting on a plurality of bearings 42, inclination pointer 63 is corresponding verts, then inclination pointer 63 can real-time indication hang the degree of inclination of platform 4, promptly the utility model discloses the slope condition on bridge surface of locating. Therefore, the utility model discloses can make things convenient for the staff in time to judge the bridge security through the real-time bridge surface slope condition of instructing of hanging oneself with heavy mechanism 6.
The bottom of the hanging platform 4 is fixed with a cover body 43, the hanging weight block 62 and the hanging rod 61 are sleeved in the cover body 43, a plurality of touch switches 44 are installed in the cover body 43, the alarm 45 is installed on the cover body 43, and the touch switches 44 are all electrically connected with the alarm 45.
The cover 43 is fixed to the hanging platform 4 such that the cover 43 moves with the hanging platform 4. When the hanging bar 61 is tilted to a certain extent with respect to the cover 43, the hanging weight block 62 touches the touch switch 44 in the cover 43, and the touch switch 44 triggers the alarm 45. Therefore, when the inclination of the bridge surface exceeds the limit, the alarm 45 gives an alarm to prompt workers that the bridge is unsafe, and the evaluation work is simplified.
The circle center of the angle dial 7 coincides with the center of the suspension ball 5, the two sides of the angle dial 7 are symmetrical, and the angle scale on the symmetrical line of the angle dial 7 is 0 degree.
The center of the angle dial 7 coincides with the center of the suspension ball 5, and the suspension weight mechanism 6 directly indicates the inclination degree of the surface of the bridge without conversion, so that the inclination degree of the surface of the bridge can be more intuitively reflected.
Example two
As shown in fig. 3 and 4, on the basis of the first embodiment, the rotating mechanism 2 includes a rotating platform 21, the rotating platform 21 is fixed to one end of the bracket 3 away from the suspension platform 4, an annular groove 22 is fixed on the moving platform 1, a plurality of balls 23 are arranged in the annular groove 22, and the rotating platform 21 is lapped on the plurality of balls 23; a support rod 24 is further fixed on the moving platform 1, a central hole 211 is formed in the rotating platform 21, the support rod 24 penetrates through the central hole 211, a locking disc 25 is fixed at the other end of the support rod 24, and a plurality of locking screws 26 used for locking the locking disc 25 and the rotating platform 21 are installed on the locking disc 25.
The rotary platform 21 can rotate on the balls 23, and when the rotary platform 21 is rotated to a proper angle, the locking disc 25 is locked with the rotary platform 21 by the locking screw 26. The angle dial 7 is turned to a corresponding angle and the bridge surface in that direction can be indicated on the angle dial 7 by the deadweight mechanism 6. Therefore, the inclination angles of the surfaces of the bridges in the vertical directions can be detected, so that the bridge safety judgment is more accurate.
The locking disc 25 is provided with angle scales, the center of the angle scales on the locking disc 25 is overlapped with the center of the annular groove 22, and the rotating platform 21 is provided with an azimuth pointer 212 for indicating the angle of the rotating platform 21.
When the rotating platform 21 rotates, the azimuth pointer 212 on the rotating platform 21 can indicate the angle scale on the locking disc 25, so that the rotating angle of the rotating platform 21 can be conveniently and accurately adjusted. Through control the utility model discloses a rotation position can be measured the degree of inclination on the bridge surface in arbitrary vertical direction, guarantees to measure the accuracy.
EXAMPLE III
On the basis of the first embodiment or the second embodiment, a driving wheel 11 and a plurality of driven wheels 12 are installed at the bottom of the mobile platform 1, a driving mechanism 8 for driving the driving wheel 11 to rotate is further installed on the mobile platform 1, and the output end of the driving mechanism 8 is connected with the driving wheel 11.
The driving mechanism 8 can drive the driving wheel 11 to rotate, the driving wheel 11 and the driven wheel 12 drive the moving platform 1 to move, gradient detection is conveniently carried out on all positions of the bridge, and operation is convenient.
The driving mechanism 8 comprises a motor 81, an output shaft of the motor 81 is connected with a speed reducer 82, the motor 81 and the speed reducer 82 are both installed on the moving platform 1, an output shaft of the speed reducer 82 is connected with a driving gear 83, the driving gear 83 is meshed with a driven gear 84, and the driven gear 84 is fixed with the driving wheel 11.
The motor 81 drives the reducer 82 to operate, the reducer 82 drives the driving gear 83 to rotate, and the driving gear 83 drives the driven gear 84 to rotate. Then driven gear 84 can drive action wheel 11 to rotate, makes the utility model discloses can remove on the bridge surface wantonly, conveniently carry out the security aassessment to each position of bridge.
The working principle is as follows:
And the locking screw 26 is screwed to loosen the locking disc 25 and the rotating platform 21, so that the rotating platform 21 can be rotated to a proper angle, and the inclination condition of the bridge surface in the vertical direction can be conveniently measured. After the rotating platform 21 rotates to a proper angle, the locking screw 26 is screwed down, the locking disc 25 is fixed relative to the rotating platform 21, and the azimuth pointer 212 indicates the angle scale on the locking disc 25, so that the accuracy of bridge safety assessment is improved.
The utility model discloses remove the definite position of bridge, after rotary platform 21 rotated definite angle, can begin to carry out inclination's measurement. The suspension balls 5 can roll on the bearings 42 under the pull of the suspension weight mechanism 6. When the position of the movable platform 1 is inclined to a certain degree relative to the horizontal plane, the movable platform 1, the bracket 3, the suspension platform 4, the angle dial 7 and the like are correspondingly inclined. And the suspension ball 5 is connected with a suspended weight mechanism 6, the suspended weight mechanism 6 is always vertical to the horizontal plane under the action of gravity, and then the suspended weight mechanism 6 can incline relative to the suspension platform 4. Since the angle scale 7 is fixed to the suspension platform 4, the suspension weight mechanism 6 is offset with respect to the angle scale 7, and the offset angle is indicated on the angle scale 7. When will the utility model discloses when removing each position on bridge surface, the degree of inclination of this position can show in real time, makes things convenient for the staff to judge bridge health status fast to the convenience makes the aassessment to the bridge security.
The present invention is not limited to the above-mentioned optional embodiments, and any other products in various forms can be obtained by anyone under the teaching of the present invention, and any changes in the shape or structure thereof, all the technical solutions falling within the scope of the present invention, are within the protection scope of the present invention.
Claims (8)
1. A bridge safety assessment device which characterized in that: comprises a mobile platform (1), wherein the mobile platform (1) is connected with a rotating mechanism (2); the other end of the rotating mechanism (2) is connected with a support (3), the other end of the support (3) is connected with a suspension platform (4), a through hole (41) is formed in the suspension platform (4), a plurality of bearings (42) are installed in the through hole (41), a suspension ball (5) is sleeved in the through hole (41), and the annular surfaces of the bearings (42) are respectively contacted with the suspension ball (5); the suspension ball (5) is connected with a suspended weight mechanism (6), the suspension platform (4) is provided with an angle dial (7) used for indicating the angle of the suspended weight mechanism (6), and the angle dial (7) is provided with angle scales.
2. The bridge safety evaluation device according to claim 1, wherein: the suspension weight mechanism (6) comprises a suspension rod (61), one end of the suspension rod (61) is connected with the suspension ball (5), and a suspension weight block (62) is fixed at the other end of the suspension rod (61); an inclination angle pointer (63) is fixed at one end of the suspension ball (5) close to the angle dial (7).
3. The bridge safety evaluation device according to claim 2, wherein: hang platform (4) bottom and be fixed with the cover body (43), in the cover body (43) was located to heavy piece (62) of hanging and hang pole (61) cover, installed a plurality of touch switch (44) in the cover body (43), installed alarm (45) on the cover body (43), a plurality of touch switch (44) all are connected with alarm (45) electricity.
4. The bridge safety evaluation device according to claim 1, wherein: the circle center of the angle dial (7) coincides with the center of the suspension ball (5), the two sides of the angle dial (7) are symmetrical, and the angle scale on the symmetrical line of the angle dial (7) is 0 degree.
5. The bridge safety evaluation device according to claim 1, wherein: the rotating mechanism (2) comprises a rotating platform (21), the rotating platform (21) is fixed with one end, away from the suspension platform (4), of the support (3), an annular groove (22) is fixed on the moving platform (1), a plurality of balls (23) are arranged in the annular groove (22), and the rotating platform (21) is in lap joint with the balls (23); the movable platform (1) is further fixed with a supporting rod (24), a central hole (211) is formed in the rotating platform (21), the supporting rod (24) penetrates through the central hole (211), the other end of the supporting rod (24) is fixed with a locking disc (25), and a plurality of locking screws (26) used for locking the locking disc (25) and the rotating platform (21) are installed on the locking disc (25).
6. The bridge safety evaluation device according to claim 5, wherein: the locking disc (25) is provided with angle scales, the center of the angle scales on the locking disc (25) is overlapped with the center of the annular groove (22), and the rotating platform (21) is provided with an azimuth pointer (212) for indicating the angle of the rotating platform (21).
7. The bridge safety evaluation device according to any one of claims 1 to 6, wherein: a driving wheel (11) and a plurality of driven wheels (12) are installed at the bottom of the moving platform (1), a driving mechanism (8) used for driving the driving wheel (11) to rotate is further installed on the moving platform (1), and the output end of the driving mechanism (8) is connected with the driving wheel (11).
8. The bridge safety evaluation device according to claim 7, wherein: the driving mechanism (8) comprises a motor (81), an output shaft of the motor (81) is connected with a speed reducer (82), the motor (81) and the speed reducer (82) are both installed on the moving platform (1), an output shaft of the speed reducer (82) is connected with a driving gear (83), the driving gear (83) is meshed with a driven gear (84), and the driven gear (84) is fixed with the driving wheel (11).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921340268.4U CN210322233U (en) | 2019-08-16 | 2019-08-16 | Bridge safety evaluation device |
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| CN201921340268.4U CN210322233U (en) | 2019-08-16 | 2019-08-16 | Bridge safety evaluation device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111947550A (en) * | 2020-08-22 | 2020-11-17 | 陈希长 | Bridge safety assessment equipment |
| CN112146551A (en) * | 2020-09-29 | 2020-12-29 | 安徽江淮汽车集团股份有限公司 | Device and method for measuring rotation angle of wiper arm of wiper |
| CN112649045A (en) * | 2020-12-18 | 2021-04-13 | 南方电网海南数字电网研究院有限公司 | Monitoring device for power transmission line |
| CN113761640A (en) * | 2021-10-15 | 2021-12-07 | 长安大学 | Real-time testing system and method for three-dimensional deformation of bridge anti-overturning bearing capacity evaluation |
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2019
- 2019-08-16 CN CN201921340268.4U patent/CN210322233U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111947550A (en) * | 2020-08-22 | 2020-11-17 | 陈希长 | Bridge safety assessment equipment |
| CN112146551A (en) * | 2020-09-29 | 2020-12-29 | 安徽江淮汽车集团股份有限公司 | Device and method for measuring rotation angle of wiper arm of wiper |
| CN112649045A (en) * | 2020-12-18 | 2021-04-13 | 南方电网海南数字电网研究院有限公司 | Monitoring device for power transmission line |
| CN113761640A (en) * | 2021-10-15 | 2021-12-07 | 长安大学 | Real-time testing system and method for three-dimensional deformation of bridge anti-overturning bearing capacity evaluation |
| CN113761640B (en) * | 2021-10-15 | 2024-05-24 | 长安大学 | Bridge anti-overturning bearing capacity evaluation three-dimensional deformation real-time test system and method |
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