CN109881589B - Bridge construction assembly and construction method applying same - Google Patents
Bridge construction assembly and construction method applying same Download PDFInfo
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- CN109881589B CN109881589B CN201910301594.2A CN201910301594A CN109881589B CN 109881589 B CN109881589 B CN 109881589B CN 201910301594 A CN201910301594 A CN 201910301594A CN 109881589 B CN109881589 B CN 109881589B
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Abstract
The invention discloses a bridge construction assembly and a construction method applying the same. Through set up sensor release box and sensor release push mechanism in the bridge construction subassembly, can mix the frequency sensor in the concrete placement process to the speed of concrete placement is controlled according to concrete sensor's data, further through optimization algorithm, thereby reaches the best speed of concrete placement, reduces the appearance of cavity.
Description
Technical Field
The application relates to a bridge construction assembly, belongs to the field of bridges, and further relates to a construction method applying the construction assembly.
Background
With the increase of the types and span widths of bridges, the prefabrication of construction components and the development of mechanical equipment, the construction method is continuously developed and improved, and various construction methods are formed. The different construction methods have different machine equipment, construction organization, arrangement and construction period, and the selection of the construction method should be determined according to the different surrounding environments, the different equipment, the experience and other factors. And the reasonable selection of the construction method directly influences the construction quality and the construction period of the whole project and directly influences the construction cost of the whole project. In addition, the existing bridge has certain difficulties in bridge maintenance and repair, and a bridge with high strength, high stability and convenient maintenance is needed. Therefore, there is a need in the art for a construction assembly that accelerates the progress of construction and a construction method using the construction assembly.
Disclosure of Invention
A bridge construction assembly comprises a row of concrete storage tanks, wherein the lower parts of the concrete storage tanks are connected with discharge pipes, and the discharge pipes are connected with a filtering and feeding device; the side edge of the filtering and feeding device is connected with a residue conveying pipe; the bottom of the residue conveying pipe is connected with a material recovery bin; the lower part of the filtering and feeding device is connected with a pouring mark assembly, and the filtering and feeding device is characterized in that: the pouring marking assembly comprises a lower fixing plate, a sensor releasing box, a sensor releasing and pushing mechanism, a fixing bolt, a sensor storing box, a sliding rail, an upper fixing plate, a nut and a bottom fixing plate; the upper fixing plate and the lower fixing plate are respectively arranged on the upper side and the lower side of the pouring mark assembly; the sensor storage box is arranged on the sliding rail; the sensor releasing and pushing mechanism is arranged on one side of the sensor storage box and used for releasing the sensor in the concrete pouring process.
As a further improvement of the above technical solution: the sensor releasing and pushing mechanism comprises a sensor releasing and pushing mechanism side edge and a sensor releasing and pushing mechanism; the upper part of the bottom fixing piece is sequentially provided with a sensor releasing and pushing mechanism and a sensor releasing and pushing mechanism side edge; the sensor release pushing mechanism receives a signal output by the controller, and the sensor release pushing mechanism is matched with the elastic sheet to complete the pushing action of the sensor according to the signal output by the controller.
As a further improvement of the above technical solution: the sensor releasing and pushing mechanism comprises an upper suspender, an upper fixing part, a hinge fixing piece, a side fixing plate, a rotating and moving contact shaft, a rotating and moving contact end and a rotating screw; the upper hanger is positioned at the top of the sensor releasing and pushing mechanism, and the upper fixing part is connected with the side fixing plate through a rotating screw; the side fixing plate is provided with a hinge fixing piece; the hinge fixing piece is provided with a rotating touch shaft and a rotating touch end; the lifting of the side fixing plate is controlled by the extension and retraction of the rotating and moving end; and the inner side of the side fixing plate is also provided with a return spring.
As a further improvement of the above technical solution: the concrete storage tank comprises a fixed bottom, a lower stirring box, a vertical transmission shaft, a stirring tank side edge, a depth adjusting knob, a stirring scale, a hydraulic machine, a water conveying pipe, a valve, a water tank, a motor, a stirring blade, a connecting end part, a bottom touch tooth and a pressure sensor; the fixed bottom is arranged at the lower part of the concrete storage tank; the lower stirring box is arranged on the fixed bottom, and the bottom of the lower stirring box is provided with a pressure sensor; the hydraulic machine is arranged at the top of the concrete storage tank; the lower part of the hydraulic machine is connected with a vertical transmission shaft, and the vertical transmission shaft is connected with the connecting end part; the lower part of the connecting end part is provided with a bottom touch tooth; the water tank is arranged at the upper part of the lower stirring box and is connected with the water conveying pipe through a valve; the motor is arranged in the middle of the upper side of the lower stirring box, and the lower part of the motor is connected with stirring blades.
A construction method of a bridge construction assembly is characterized in that:
1) constructing a lower structure of a pre-laid bridge;
2) installing a bracket around the pre-laid bridge, wherein the bracket is used for laying a construction assembly;
3) erecting a template in an area to be cast with concrete;
4) binding reinforcing steel bars in the formwork for waiting for pouring of concrete;
5) a prestressed pipeline is arranged in the template, and the prestressed pipeline ensures the stability of the whole structure of the bridge;
6) pouring concrete, wherein a vibration frequency sensor is mixed in the concrete;
7) adding tensioned prestressed reinforcements in the template;
8) after the concrete construction at the lower part of the bridge is finished, the frame is dropped and moved;
9) and after the frame is dropped and moved, carrying out bridge deck engineering on the bridge.
As a further improvement of the above technical solution: the vibration frequency sensor in the step 6) feeds back a vibration frequency signal in the pouring process, the vibration frequency signal is fed back to the controller, and the controller is used for controlling the pouring rate of the concrete, so that the pouring quality of the concrete is improved.
As a further improvement of the above technical solution: the speed calculation function in the controller is:
wherein f represents the value of the vibration frequency, D represents the hydraulic diameter of the conveying surface, V0Representing the initial velocity of the cast concrete, d representing the hydraulic diameter of the casting surface, and v (f) representing the velocity of the cast concrete.
As a further improvement of the above technical solution: the calculation formula of the correction calculation in the controller is as follows:
n＝Nt0；
wherein V (n) represents the speed of the concreting taking values at intervals of n, V0Representing the initial speed of the cast concrete, ΔtRepresents the coefficient of deviation, t0Representing the standard time interval taken by the controller, N ═ 1,2,3 … …; when delta ist<At 0.85, V (n) ═ Δt+0.05)V0。
As a further improvement of the above technical solution: the calculation formula of the optimization function in the controller is as follows:
wherein the content of the first and second substances,
represents the component velocity in the X-axis direction at time t,
represents the component velocity along the X-axis at time V (f) of t + 10;
represents the component velocity in the Y-axis direction at time t,
representing the component velocity in the Y-axis at time V (f) t +10, V (f)CorrectionRepresenting the corrected cast concrete speed;
represents
First derivative along the X-axis;
represents
First derivative along the X-axis.
This application is through setting up one row of concrete holding vessel, has set up rabbling mechanism in concrete holding vessel inside, owing to avoided the machineshop car transport of making a round trip for the engineering progress. Through set up sensor release box and sensor release push mechanism in bridge construction subassembly, can mix the frequency sensor in the concrete placement process to the speed of concrete placement is controlled according to concrete sensor's data. The number of concrete pours is further increased and the rate of concrete pouring is further optimized by an optimization algorithm.
Drawings
Fig. 1 is a concrete mixer truck for bridge construction according to the related art.
Fig. 2 is a drawing of a pouring system for bridge construction.
Fig. 3 is a first internal structure view of a casting mark assembly.
Fig. 4 is an internal structure view of the casting mark assembly.
FIG. 5 is a side schematic view of a sensor release push mechanism.
Fig. 6 is a schematic structural diagram of a sensor release pushing mechanism.
FIG. 7 is a schematic view of the internal structure of the agitation tank.
Fig. 8 is a schematic view of a construction method using the construction assembly.
In the figure, 1, a stirring tank; 2. a concrete feeding port; 3. pouring a marking assembly; 4. a concrete storage tank; 5. a discharge pipe; 6. a filtering and feeding device; 7. a residue conveying pipe; 10. a lower fixing plate; 20. a sensor release cartridge; 30. the sensor releases the pushing mechanism; 40. fixing the bolt; 50. a sensor storage case; 60. a slide rail; 80. an upper fixing plate; 101. a nut; 105. an elastic sheet; 106. a bottom fixing sheet; 70. fixing a column; 80. an upper fixing plate; 31. the sensor releases the side edge of the pushing mechanism; 32. the sensor releases the pushing mechanism; 102. a side fixing piece; 321. an upper hanger; 322. an upper fixing portion; 323. a hinge fixing piece is arranged; 324. side fixing plates; 326. moving the movable shaft in a rotating way; 3261. moving the contact end; 329. rotating the screw; 8. fixing the bottom; 9. a lower stirring box; 11. a vertical drive shaft; 12. the side of the stirring tank; 13. a depth adjustment knob; 14. stirring scales; 15. a hydraulic press; 16. a water delivery pipe; 17. a valve; 18. a water tank; 19. a motor; 21. a stirring blade; 20a, a connection end; 21a, bottom touch teeth; 21b, a pressure sensor.
Detailed Description
As shown in fig. 2, a bridge construction assembly comprises a row of concrete storage tanks 4, the lower parts of which are connected with discharge pipes 5, and the discharge pipes are connected with a filtering and feeding device 6; the side edge of the filtering and feeding device is connected with a residue conveying pipe 7; the bottom of the residue conveying pipe is connected with a material recovery bin; the lower part of the filtering and feeding device is connected with a pouring mark assembly, and the filtering and feeding device is characterized in that: the pouring marking assembly comprises a lower fixing plate 10, a sensor releasing box, a sensor releasing and pushing mechanism, a fixing bolt, a sensor storing box, a sliding rail, an upper fixing plate, a nut and a bottom fixing plate; the upper fixing plate and the lower fixing plate are respectively arranged on the upper side and the lower side of the pouring mark assembly; the sensor storage box is arranged on the sliding rail; the sensor releasing and pushing mechanism is arranged on one side of the sensor storage box and used for releasing the sensor in the concrete pouring process.
As shown in fig. 3, the sensor releasing and pushing mechanism includes a sensor releasing and pushing mechanism side edge and a sensor releasing and pushing mechanism; the upper part of the bottom fixing piece is sequentially provided with a sensor releasing and pushing mechanism and a sensor releasing and pushing mechanism side edge; the sensor release pushing mechanism receives a signal output by the controller, and the sensor release pushing mechanism is matched with the elastic sheet to complete the pushing action of the sensor according to the signal output by the controller.
As shown in fig. 4-6, the sensor releasing and pushing mechanism includes an upper hanger, an upper fixing portion, a hinge fixing plate, a side fixing plate, a movable rotating shaft, a movable rotating end, and a rotating screw; the upper hanger is positioned at the top of the sensor releasing and pushing mechanism, and the upper fixing part is connected with the side fixing plate through a rotating screw; the side fixing plate is provided with a hinge fixing piece; the hinge fixing piece is provided with a rotating touch shaft and a rotating touch end; the lifting of the side fixing plate is controlled by the extension and retraction of the rotating and moving end; and the inner side of the side fixing plate is also provided with a return spring.
Through set up sensor release box and sensor release push mechanism in bridge construction subassembly, place miniature frequency sensor in sensor release push mechanism in batches, when needs supply new miniature frequency sensor, only need along the slide rail draw out add can, frequency sensor can be sneaked into in concrete placement in-process in the above-mentioned setting to according to concrete sensor's data control concrete placement's speed, reduce the appearance of cavity.
As shown in fig. 7, the concrete storage tank includes a fixed bottom, a lower stirring box, a vertical transmission shaft, a side of the stirring tank, a depth adjusting knob, stirring scales, a hydraulic machine, a water delivery pipe, a valve, a water tank, a motor, stirring blades, a connecting end, bottom touch teeth, and a pressure sensor; the fixed bottom is arranged at the lower part of the concrete storage tank; the lower stirring box is arranged on the fixed bottom, and the bottom of the lower stirring box is provided with a pressure sensor; the hydraulic machine is arranged at the top of the concrete storage tank; the lower part of the hydraulic machine is connected with a vertical transmission shaft, and the vertical transmission shaft is connected with the connecting end part; the lower part of the connecting end part is provided with a bottom touch tooth; the water tank is arranged at the upper part of the lower stirring box and is connected with the water conveying pipe through a valve; the motor is arranged in the middle of the upper side of the lower stirring box, and the lower part of the motor is connected with stirring blades.
As shown in fig. 8, a construction method of a bridge construction assembly is characterized in that:
1) constructing a lower structure of a pre-laid bridge;
2) installing a bracket around the pre-laid bridge, wherein the bracket is used for laying a construction assembly;
3) erecting a template in an area to be cast with concrete;
4) binding reinforcing steel bars in the formwork for waiting for pouring of concrete;
5) a prestressed pipeline is arranged in the template, and the prestressed pipeline ensures the stability of the whole structure of the bridge;
6) pouring concrete, wherein a vibration frequency sensor is mixed in the concrete;
7) adding tensioned prestressed reinforcements in the template;
8) after the concrete construction at the lower part of the bridge is finished, the frame is dropped and moved;
9) and after the frame is dropped and moved, carrying out bridge deck engineering on the bridge.
As shown in fig. 9, the vibration frequency sensor in step 6) feeds back a vibration frequency signal during pouring, and the vibration frequency signal is fed back to a controller, and the controller is used for controlling the concrete pouring rate, so that the quality of concrete pouring is improved.
The technical scheme is further improved as follows: the speed calculation function in the controller is:
wherein f represents the value of the vibration frequency, D represents the hydraulic diameter of the conveying surface, V0Representing the initial velocity of the cast concrete, d representing the hydraulic diameter of the casting surface, and v (f) representing the velocity of the cast concrete.
In one embodiment, V may be taken02m/s, 2.2m, 8.45m, 0.82HZ and 2.018m/s, wherein the actual concrete pouring speed is related to the frequency of vibration feedback inside the concrete, so that the concrete pouring speed can be adjusted in real time, the concrete pouring quality is ensured, and air bubbles in the concrete pouring process are reduced.
As shown in fig. 9, as a further improvement of the above technical solution: the calculation formula of the correction calculation in the controller is as follows:
n＝Nt0；
wherein V (n) represents the speed of the concreting taking values at intervals of n, V0Representing the initial speed of the cast concrete, ΔtRepresents the coefficient of deviation, t0Representing the standard time interval taken by the controller, N ═ 1,2,3 … …; when delta ist<△0When the measured value is V (n) ═ Δt+0.05)V0；△0Representing the set deviation criterion.
In one of the embodiments, the first and second electrodes are,
can get V0＝2m/s，t020 s; at this time, data V (n) and initial velocity V are taken every 20S0For comparison, the construction time is 1 hour for example, 180 samples are obtained, and Δ is set00.85; delta in constructiontAppearance of Deltat<At 0.85, v (n) is 1.8m/s to ensure that the speed does not deviate too much from the normal casting speed.
As shown in fig. 9, the calculation formula of the optimization function in the controller is:
wherein the content of the first and second substances,
represents the component velocity in the X-axis direction at time t,
represents the component velocity along the X-axis at time V (f) of t + 10;
represents the component velocity in the Y-axis direction at time t,
representing the component velocity in the Y-axis at time V (f) t +10, V (f)CorrectionRepresenting the corrected cast concrete speed;
represents
First derivative along the X-axis;
represents
First derivative along the X-axis. The irrigation rate was divided into an X-axis component and a Y-axis component, and the rates obtained after correction for the above rates were as follows:
table 1 correction speed list
The above-mentioned embodiments are only for illustrating the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention accordingly, but not to limit the scope of the present invention by only the embodiments, i.e. all equivalent changes or modifications made in the spirit of the present invention are still within the scope of the present invention.
Claims (6)
1. A bridge construction assembly comprises a row of concrete storage tanks, wherein the lower parts of the concrete storage tanks are connected with discharge pipes, and the discharge pipes are connected with a filtering and feeding device; the side edge of the filtering and feeding device is connected with a residue conveying pipe; the bottom of the residue conveying pipe is connected with a material recovery bin; the lower part of the filtering and feeding device is connected with a pouring mark assembly, and the filtering and feeding device is characterized in that: the pouring marking assembly comprises a lower fixing plate, a sensor releasing box, a sensor releasing and pushing mechanism, a fixing bolt, a sensor storing box, a sliding rail, an upper fixing plate, a nut and a bottom fixing plate; the upper fixing plate and the lower fixing plate are respectively arranged on the upper side and the lower side of the pouring mark assembly; the sensor storage box is arranged on the sliding rail; the sensor releasing and pushing mechanism is arranged on one side of the sensor storage box and used for releasing the sensor in the concrete pouring process; the sensor releasing and pushing mechanism comprises a sensor releasing and pushing mechanism side edge and a sensor releasing and pushing mechanism; the upper part of the bottom fixing piece is sequentially provided with a sensor releasing and pushing mechanism and a sensor releasing and pushing mechanism side edge; the sensor release pushing mechanism receives a signal output by the controller, and is matched with the elastic sheet to complete the pushing action of the sensor according to the signal output by the controller; the sensor releasing and pushing mechanism comprises an upper suspender, an upper fixing part, a hinge fixing piece, a side fixing plate, a rotating and moving contact shaft, a rotating and moving contact end and a rotating screw; the upper hanger is positioned at the top of the sensor releasing and pushing mechanism, and the upper fixing part is connected with the side fixing plate through a rotating screw; the side fixing plate is provided with a hinge fixing piece; the hinge fixing piece is provided with a rotating touch shaft and a rotating touch end; the lifting of the side fixing plate is controlled by the extension and retraction of the rotating and moving end; and the inner side of the side fixing plate is also provided with a return spring.
2. A construction method of a construction assembly is characterized in that: employing the construction assembly of claim 1; the method comprises the following steps:
1) constructing a lower structure of a pre-laid bridge;
2) installing a bracket around the pre-laid bridge, wherein the bracket is used for laying a construction assembly;
3) erecting a template in an area to be cast with concrete;
4) binding reinforcing steel bars in the formwork for waiting for pouring of concrete;
5) a prestressed pipeline is arranged in the template, and the prestressed pipeline ensures the stability of the whole structure of the bridge;
6) pouring concrete, wherein a vibration frequency sensor is mixed in the concrete;
7) adding tensioned prestressed reinforcements in the template;
8) after the concrete construction at the lower part of the bridge is finished, the frame is dropped and moved;
9) and after the frame is dropped and moved, carrying out bridge deck engineering on the bridge.
3. A method of constructing a construction assembly as claimed in claim 2, wherein: the vibration frequency sensor in the step 6) feeds back a vibration frequency signal in the pouring process, the vibration frequency signal is fed back to the controller, and the controller is used for controlling the pouring rate of the concrete, so that the pouring quality of the concrete is improved.
4. A method of constructing a construction assembly as claimed in claim 3, wherein: the speed calculation function in the controller is:
wherein f represents the value of the vibration frequency, D represents the hydraulic diameter of the conveying surface, V0Representing the initial velocity of the cast concrete, d representing the hydraulic diameter of the casting surface, and v (f) representing the velocity of the cast concrete.
5. The construction method of a construction assembly according to claim 4, wherein: the calculation formula of the correction calculation in the controller is as follows:
n＝Nt0；
wherein V (n) represents the speed of the concreting taking values at intervals of n, V0Representing the initial speed of the cast concrete, ΔtRepresents the coefficient of deviation, t0Representing a standard time interval taken by the controller, N1, 2, 3.; when delta ist<△0When the measured value is V (n) ═ Δt+0.05)V0；△0Representing the set deviation criterion.
6. The construction method of a construction assembly according to claim 5, wherein: the calculation formula of the optimization function in the controller is as follows:
wherein the content of the first and second substances,
represents the component velocity in the X-axis direction at time t,
represents the component velocity along the X-axis at time V (f) of t + 10;
represents the component velocity in the Y-axis direction at time t,
representing the component velocity in the Y-axis at time V (f) t +10, V (f)CorrectionRepresenting the corrected cast concrete speed;
represents
First derivative along the X-axis;
represents
First derivative along the X-axis.
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| CN201910301594.2A CN109881589B (en) | 2019-04-12 | 2019-04-12 | Bridge construction assembly and construction method applying same |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2229975C2 (en) * | 2001-11-26 | 2004-06-10 | Колчеданцев Леонид Михайлович | Device for concrete mixture continuous treatment |
| CN101080633A (en) * | 2004-12-17 | 2007-11-28 | 拜尔保健有限公司 | Disposable test sensor cartridge |
| CN205502593U (en) * | 2016-04-01 | 2016-08-24 | 寻乌县宁达科机械设备开发有限公司 | Concrete conveying pipe says device |
| CN206825656U (en) * | 2017-06-22 | 2018-01-02 | 四川省劲腾环保建材有限公司 | Self-heat conserving lightweight small size hollow concrete blocks production system |
| CN207359351U (en) * | 2017-10-18 | 2018-05-15 | 东莞市洪信混凝土有限公司 | A kind of concrete mixer truck |
| CN207974534U (en) * | 2018-03-20 | 2018-10-16 | 苏诗合 | A kind of integration of metope foamed concrete pours device |
-
2019
- 2019-04-12 CN CN201910301594.2A patent/CN109881589B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2229975C2 (en) * | 2001-11-26 | 2004-06-10 | Колчеданцев Леонид Михайлович | Device for concrete mixture continuous treatment |
| CN101080633A (en) * | 2004-12-17 | 2007-11-28 | 拜尔保健有限公司 | Disposable test sensor cartridge |
| CN205502593U (en) * | 2016-04-01 | 2016-08-24 | 寻乌县宁达科机械设备开发有限公司 | Concrete conveying pipe says device |
| CN206825656U (en) * | 2017-06-22 | 2018-01-02 | 四川省劲腾环保建材有限公司 | Self-heat conserving lightweight small size hollow concrete blocks production system |
| CN207359351U (en) * | 2017-10-18 | 2018-05-15 | 东莞市洪信混凝土有限公司 | A kind of concrete mixer truck |
| CN207974534U (en) * | 2018-03-20 | 2018-10-16 | 苏诗合 | A kind of integration of metope foamed concrete pours device |
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Address after: No.91, Longhai Middle Road, Erqi District, Zhengzhou City, Henan Province, 450000 Patentee after: Zhengzhou Transportation planning Survey, Design and Research Institute Co.,Ltd. Address before: No. 91, Longhai Road, Erqi District, Zhengzhou City, Henan Province 450000 Patentee before: ZHENGZHOU COMMUNICATIONS PLANNING SURVEY & DESIGN INSTITUTE |