CN209858200U - Experimental facility of modulus formula bridge telescoping device - Google Patents
Experimental facility of modulus formula bridge telescoping device Download PDFInfo
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- CN209858200U CN209858200U CN201920998980.7U CN201920998980U CN209858200U CN 209858200 U CN209858200 U CN 209858200U CN 201920998980 U CN201920998980 U CN 201920998980U CN 209858200 U CN209858200 U CN 209858200U
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Abstract
The utility model belongs to the technical field of detect the experimental facilities, specific saying relates to an experimental facilities of modulus formula bridge telescoping device. The main technical scheme is as follows: the movable platform is driven by a power cylinder arranged on the base, and the power cylinder is electrically connected with a PLC controller through a pressure sensor. The experimental equipment of the telescopic device has the characteristics of performing omnidirectional telescopic performance on the modular bridge telescopic device and performing dynamic fatigue detection on adaptability of the modular bridge telescopic device under extreme conditions such as load change and earthquake impact.
Description
Technical Field
The utility model belongs to the technical field of detect the experimental facilities, specific saying relates to an experimental facilities of modulus formula bridge telescoping device.
Background
The bridge expansion device is used for meeting the requirement of bridge deck deformation, and is generally arranged between two beam ends and between the beam ends and a bridge abutment, and is required to adapt to the longitudinal, transverse and vertical displacement of a bridge in two directions parallel to and perpendicular to the axis of the bridge, so that when a vehicle runs, the vehicle is smooth and free of sudden jump and noise, and rainwater and garbage soil are prevented from permeating and blocking.
With the rapid development of roads and municipal construction in China, the number of long-span bridges is gradually increased, the most widely applied mode-digital expansion devices are the mode-digital expansion devices, the mode-digital expansion devices imported at present account for a large part of market share, the mode-digital expansion devices made in China also actively expand the bridge market, and the quality of the mode-digital expansion devices does not reach the standards of foreign products. Especially, decision makers and site constructors of bridge construction units generally have little contact with the large-displacement expansion device, and have little knowledge about the product quality and performance of the large-displacement expansion device, so that the difficulty and hidden danger of the bridge expansion device in the aspects of model selection, construction and maintenance are increased, and the quality of bridge construction is influenced; moreover, the technical strength and the processing level of each telescopic device manufacturer are different, so that the difference between the design and the manufacturing quality of the telescopic device is large, and the detection of the telescopic device product needs to be enhanced to distinguish the quality; in addition, the longitudinal displacement, the transverse displacement, the vertical displacement and the seismic oscillation of the bridge provide specific requirements for the multidirectional displacement capacity of the telescopic device, so that the dynamic test of the telescopic device is researched, the multifunctional bridge telescopic device test equipment is developed, and the practical significance is achieved for ensuring the quality level and the seismic capacity of the telescopic device.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an experimental facilities that the modulus formula bridge telescoping device carries out omnidirectional flexible performance and adaptability carries out dynamic fatigue detection under extreme conditions such as load change, earthquake impact.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model provides an experimental facilities of modulus formula bridge telescoping device, includes the base, sets up two at least movable platform in the base, the boundary beam setting of bridge telescoping device both sides is in on the movable platform, the movable platform is by setting up power cylinder drive on the base, the power cylinder passes through pressure sensor, displacement recorder and PLC controller electrical connection.
The additional technical characteristics of the experimental equipment for forming the modulus type bridge expansion device further comprise:
the movable platform comprises a transverse displacement platform and a longitudinal displacement platform which are arranged along a bridge expansion device, and the power cylinder comprises a transverse oil cylinder for driving the transverse displacement platform, a longitudinal oil cylinder for driving the longitudinal displacement platform and a first vertical oil cylinder for driving the transverse displacement platform to do vertical motion;
-the longitudinal displacement platform is located within a longitudinal sliding track provided within the base; the transverse displacement platform is positioned in a transverse sliding track arranged in the base, and the bottom of the transverse sliding track is connected with the first vertical oil cylinder through a movable plate;
the bridge expansion device further comprises a vibrator arranged on a middle beam of the bridge expansion device, a motor of the vibrator is electrically connected with the PLC, and a height-adjusting stud is arranged on one side of the lower portion of the base and used for enabling the base to be arranged in an inclined mode;
the base further comprises a reaction force support provided with a second vertical oil cylinder, the second vertical oil cylinder is electrically connected with the PLC, a horizontal steel bar is arranged at the end part of a piston rod of the second vertical oil cylinder, and the horizontal steel bar is in contact with a rubber sealing belt in the bridge expansion device.
The utility model provides a modular bridge telescoping device's experimental facilities compares with prior art, has following advantage: firstly, because at least two movable platforms are arranged in a base of the experimental equipment, boundary beams on two sides of a bridge expansion device are arranged on the movable platforms, the movable platforms are driven by a power cylinder arranged on the base, and the power cylinder is electrically connected with a PLC (programmable logic controller) through a pressure sensor and a displacement recorder, so that the displacement change of the expansion device in the longitudinal direction, the transverse direction and the vertical direction is automatically controlled, pressure data can be recorded in real time, and comprehensive limit data and quality evaluation reports are formed; secondly, the bridge expansion device further comprises a vibrator arranged on a middle beam of the bridge expansion device, and the vibrator is electrically connected with the PLC, so that the bridge load change can be simulated really, the displacement amount, the stress change and the like of the expansion device can be recorded, and the expansion device can be subjected to a vibration opening and closing experiment; the first vertical oil cylinder which drives the transverse displacement platform to do vertical motion works in a cooperative mode, the adaptability of the bridge expansion device under the earthquake impact condition can be simulated, and effective test parameters are provided for improving the technology and improving the earthquake resistance.
Drawings
Fig. 1 is a plan view of the experimental equipment of the modular bridge expansion device of the present invention;
fig. 2 is a side view of the experimental equipment for constructing the modular bridge expansion device.
Detailed Description
The structure and the working principle of the experimental facility of the modular bridge expansion device provided by the present invention are further described in detail with reference to the accompanying drawings.
Referring to fig. 1 and fig. 2, the utility model provides a structural schematic diagram of an experimental facility of a modular bridge expansion device. The structure of constituting this experimental facilities includes base 1, sets up two at least movable platform in base 1, and the boundary beam setting of bridge telescoping device A both sides is on movable platform, and movable platform is by the driving cylinder drive of setting on base 1, and the driving cylinder passes through pressure sensor 4, displacement recorder 5 and PLC controller 6 electrical connection.
The working principle is as follows: the modulus formula bridge telescoping device A that will treat the experiment detection arranges this experimental facilities in base 1, the boundary beam of telescoping device A both sides is fixed respectively on two movable platform, the power cylinder of setting on base 1 drives above-mentioned movable platform respectively can realize vertically, transversely, the displacement change of vertical a plurality of directions, power cylinder and 6 electrical connection of PLC controller, be used for the input experiment parameter, the power cylinder still has pressure sensor 4, displacement recorder 5 is connected with the PLC controller, can real-time recording telescoping device A's atress distribution and the displacement volume situation of change.
In the structure of the experimental facility constituting the modular bridge expansion device,
in order to realize the displacement change of the telescopic device a in the longitudinal, transverse, vertical and other directions, the movable platform comprises two transverse displacement platforms 22 and a longitudinal displacement platform 21 which are arranged along the bridge telescopic device, and the power cylinder comprises a transverse oil cylinder 32 for driving the transverse displacement platform 22, a longitudinal oil cylinder 31 for driving the longitudinal displacement platform 21, and a first vertical oil cylinder 33 for driving the transverse displacement platform 22 to do vertical motion;
preferably, the longitudinal displacement platform 21 is located in a longitudinal sliding rail 211 arranged in the base 1, the transverse displacement platform 22 is located in a transverse sliding rail 221 arranged in the base 1, the bottom of the transverse sliding rail 221 is connected with the first vertical oil cylinder 33 through a movable plate 222, and in order to accurately measure the displacement change of the telescopic device, the displacement recorder 5 can also be arranged in the sliding rail;
in order to simulate the load change on a bridge, the bridge expansion device further comprises a vibrator 7 arranged on a middle beam B of the bridge expansion device, the vibrator 7 is electrically connected with a PLC (programmable logic controller) 6, the single amplitude of the force generated by the vibrator 7 is greater than or equal to 22kN, the total exciting force is not less than 40kN, when vibration and opening and closing experiments are carried out, in order to achieve a better experiment effect, the base 1 is preferably arranged in an inclined mode, a heightening stud is arranged on one side of the lower portion of the base 1, the inclined gradient is less than or equal to 0.1, and the service life of the real modulus expansion device A can be detected by setting the times of the opening and closing displacement vibration experiments;
the base 1 further comprises a reaction force support 8 provided with a second vertical oil cylinder 34, the second vertical oil cylinder 34 is electrically connected with the PLC controller 6, the end part of a piston rod of the second vertical oil cylinder is provided with a horizontal steel bar 9, the horizontal steel bar 9 is in contact with a rubber sealing strip C in the bridge expansion device, the diameter of the horizontal steel bar 9 is preferably 25mm, the length of the horizontal steel bar is preferably 535mm, the thrust of the horizontal steel bar 9 to the rubber sealing strip C is adopted to simulate the load on the rubber sealing strip C of the expansion device, the expansion device A is placed in a movable platform of test equipment, a section steel gap of the expansion device is pulled to 75 +/-10 mm, the rubber sealing strip C between section steels is matched with the position of the horizontal steel bar 9, the second vertical oil cylinder 34 is started, the horizontal steel bar 9 falls to be close to the rubber sealing strip C, the load is loaded on the rubber sealing strip C, a pressure sensor accurately monitors the pressure, the test conditions are close, the sealing quality of the modulus type expansion device A can be truly reflected.
Claims (5)
1. The utility model provides an experimental facilities of modulus formula bridge telescoping device which characterized in that: the movable platform is driven by a power cylinder arranged on the base, and the power cylinder is electrically connected with a PLC controller through a pressure sensor.
2. The experimental facility of a modular bridge expansion device of claim 1, wherein: the movable platform comprises a transverse displacement platform and a longitudinal displacement platform which are arranged along a bridge expansion device, and the power cylinder comprises a transverse oil cylinder for driving the transverse displacement platform, a longitudinal oil cylinder for driving the longitudinal displacement platform and a first vertical oil cylinder for driving the transverse displacement platform to do vertical motion.
3. The experimental facility of a modular bridge expansion device of claim 2, wherein: the longitudinal displacement platform is positioned in a longitudinal sliding track arranged in the base; the transverse displacement platform is arranged in a transverse sliding rail in the base, and the bottom of the transverse sliding rail is connected with the first vertical oil cylinder through a movable plate.
4. The experimental facility of a modular bridge expansion device according to claim 1 or 2, wherein: the bridge expansion device is characterized by further comprising a vibrator arranged on a middle beam of the bridge expansion device, the vibrator is electrically connected with the PLC, and a height-adjusting stud is arranged on one side of the lower portion of the base and used for enabling the base to be arranged in an inclined mode.
5. The experimental facility of a modular bridge expansion device according to claim 1 or 2, wherein: the base is still including the reaction force support that has set up the vertical hydro-cylinder of second, the vertical hydro-cylinder of second with the tip of PLC controller electrical connection and its piston rod sets up horizontal rod iron, horizontal rod iron contacts with the rubber seal area in the bridge telescoping device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920998980.7U CN209858200U (en) | 2019-06-30 | 2019-06-30 | Experimental facility of modulus formula bridge telescoping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920998980.7U CN209858200U (en) | 2019-06-30 | 2019-06-30 | Experimental facility of modulus formula bridge telescoping device |
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| Publication Number | Publication Date |
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| CN209858200U true CN209858200U (en) | 2019-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920998980.7U Active CN209858200U (en) | 2019-06-30 | 2019-06-30 | Experimental facility of modulus formula bridge telescoping device |
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| CN (1) | CN209858200U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116105958A (en) * | 2023-04-10 | 2023-05-12 | 四川蜀工公路工程试验检测有限公司 | Road and bridge expansion joint impact resistance data simulation experiment system and method |
-
2019
- 2019-06-30 CN CN201920998980.7U patent/CN209858200U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116105958A (en) * | 2023-04-10 | 2023-05-12 | 四川蜀工公路工程试验检测有限公司 | Road and bridge expansion joint impact resistance data simulation experiment system and method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 053000 Hengshui city of Hebei Province North Taocheng District industrial base rubber road No. 1 Patentee after: Zhongyu Tiexin Transportation Technology Co.,Ltd. Address before: 053000 Hengshui city of Hebei Province North Taocheng District industrial base rubber road No. 1 Patentee before: HENGSHUI ZHONGTIEJIAN ENGNIEERING RUBBER Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |