A kind of cross beam construction support system and method for cable tower

Abstract

A crossbeam construction support system and method for a cable tower, comprising a male support box and a female support box connected to the cable towers on both sides, one end of the male support box extending out of the cable tower, a parallel support platform placed on the male support box, and a crossbeam bottom plate support with a top that matches the shape of the crossbeam bottom plate provided above the parallel support platform. The male support box is pre-embedded in the female support box, so that the male support box can be easily connected, and through the matching gap between the two, the male support boxes on the cable towers on the same side and both sides can be adjusted and tightened, leaving sufficient adjustment space, and the pre-embedding of the female support box is also easy to operate, so that the crossbeam construction support in the cable tower becomes easy to construct and can ensure horizontality, and the whole process of supporting system construction, crossbeam casting, and crossbeam solidification is monitored by monitoring the tightening force and displacement of fasteners during the construction process, so as to prevent the strain of the supporting system from exceeding the range and the collapse of the crossbeam.

Description

Technical Field

[0001] The invention relates to the technical field of bridge construction, and in particular to a construction support system and method for a cross beam in a cable tower. Background Art

[0002] The construction of the cross beam in the cable tower is at high altitude, so it is impossible to use the ground support method. Instead, a concrete pouring support system is often formed by pre-embedded triangular brackets. This method uses a large amount of steel and has a complex structure. It has extremely high requirements for welding between embedded parts and rods, and has a high construction risk.

[0003] There are also devices for constructing the cable tower beam in the prior art. For example, the Chinese patent document CN210507094 U records the pre-embedded steel bar support system of the lower beam of the cable tower, including: two relatively arranged concrete shear walls, each of which is provided with a pre-embedded steel bar, by arranging a pre-embedded sleeve in the concrete shear wall, arranging a sleeve reinforcement steel bar on the outer wall of the pre-embedded sleeve, and arranging the pre-embedded steel bar through the pre-embedded sleeve, and arranging the primary load-bearing beam and the secondary distribution beam on the pre-embedded steel bar, which not only improves the construction efficiency, but also improves the structural stability of the primary load-bearing beam and the secondary distribution beam by arranging the pre-embedded sleeve, the sleeve reinforcement steel bar and the pre-embedded steel bar, thereby effectively improving the force safety and stability of the lower beam during the concrete construction. However, it is inconvenient to set multiple pre-embedded sleeves in the air, and the overall horizontality cannot be guaranteed by pouring once. At the same time, the pre-embedded sleeves need to be reinforced by arranging multiple sleeve reinforcement steel bars in the shear wall, which makes the construction cumbersome and difficult.

[0004] Chinese patent document CN214613620U records a cast-in-place beam support frame, which forms a triangular bracket system through diagonal braces and chord rods, and at the same time, a pull rod is added to the diagonal braces, so that the support frame of the present application has good structural stability, which can meet the support requirements of the cast-in-place middle beam, and has a simple structure, which can facilitate construction operations, shorten construction time, and improve construction efficiency. However, supporting the chord rod with a diagonal brace will make the construction more difficult because there is no stable construction platform, and the construction method requires the installation of two upper and lower pre-buried steel bars, and its construction accuracy needs to be guaranteed.

[0005] Because it is an aerial operation, the stability of the support system is particularly important, but the current beam support system has no means to monitor its status. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a support system and method for the construction of a crossbeam in a cable tower, which can direct noise to a specific position, can conveniently and quickly carry out the support construction of the crossbeam of the cable tower, and can monitor the support data after construction, and can also monitor the pouring and condensation process to improve the quality of the project.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0008] A crossbeam construction support system for a cable tower comprises a male support box and a female support box connected to the cable towers on both sides, the female support box is pre-buried in the cable tower and connected with the male support box, one end of the male support box extends out of the cable tower, at least two sets of male support boxes and female support boxes are provided on each cable tower, a parallel bracket platform is placed on the male support box, a crossbeam bottom plate bracket with a top matching the shape of the crossbeam bottom plate is provided above the parallel bracket platform, the crossbeam bottom plate is placed on the crossbeam bottom plate bracket, and crossbeam side plates are provided on both sides of the crossbeam bottom plate.

[0009] The above-mentioned male head support box and female head support box are provided with corresponding through holes that match the positions, and the cable tower is provided with a penetrating fastening channel. The fasteners pass through the fastening channels and the through holes on the male head support box and the female head support box, and the two ends of the fasteners are fastened to the cable tower and the male head support box respectively.

[0010] The above-mentioned male head support box is formed by connecting two male head plates, and the two sides of the male head plates are respectively connected by connecting plates and male head fastening plates, and the connecting plates and male head fastening plates are arranged alternately up and down. The male head fastening plates are provided with through holes for fastener connection. The male head plate located on one side of the male head fastening plates protrudes and can be inserted into the female head support box, and a support plate is provided on the top of the male head plate.

[0011] The above-mentioned female head support box is connected by groove bodies on both sides, and the groove bodies on both sides are surrounded by pads and structural plates on the upper and lower sides. Between the pads and the structural plates is a slot hole for inserting the protruding part of the male head plate. The groove bodies on both sides are connected by a female head fastening plate. The female head fastening plate is provided with through holes for fasteners to pass through. The position of the through holes corresponds to the position of the fastening channel, and the groove body is pre-embedded in the cable tower.

[0012] The male header plate is in an inverted "L" shape, with the protruding portion of the L located at the top and matching with the slot hole.

[0013] The slot hole corresponds to the protruding portion of the male header plate in an oblique downward manner.

[0014] A gasket fastening force sensor is provided at the connection between the above-mentioned fastener and the male head fastening plate. A part of the male head support box is not embedded, and a mounting hole is provided above the unembedded area. A fixer is provided on the fastener in the unembedded area, and the fixer is connected to the pull rope sensor on the female head fastening plate. The gasket fastening force sensor and the pull rope sensor are connected to the input end of the monitoring controller, and the monitoring controller is connected to the wireless module for communication. The wireless module uploads the detected data to the host computer and the mobile terminal.

[0015] The above-mentioned fixer is formed by fastening a first fixing hoop and a second fixing hoop. A protrusion is provided on one side of the first fixing hoop. A rope fixing hole for inserting a rope is provided on the protrusion. A rope fixing screw is provided above the rope fixing hole. The rope is connected to the rope sensor.

[0016] Using the above-mentioned construction method of the crossbeam construction support system in the cable tower, the specific steps of the construction are:

[0017] Step 1: During the construction of the cable tower, the embedded position of the female support box and the position of the fastening channel are calculated according to the position of the beam and the size of the parallel support platform and the beam bottom plate support. The PVC pipe is matched and connected with the perforations of the female fastening plate, and positioned in the cast steel mesh of the cable tower. Then, the cable tower is cast, wood is inserted into the slot hole to prevent concrete from entering, and partitions are set up at the installation holes.

[0018] Step 2: After the tower is poured and the concrete is finally set, before the crossbeam construction is carried out, remove the wood in the slot hole and insert the protruding part of the male head plate on the male head support box into the slot hole of the female head support box;

[0019] Step 3: Insert the fastener into the PVC pipe and through the holes of the male support box and the female support box, insert the gasket fastening force sensor into the fastener, and preliminarily fasten the two ends of the fastener to the male fastening plate and the cable tower respectively. Use channel steel to place the support plates of the male support box on the same side and both sides for horizontal adjustment. After the horizontal adjustment is completed, tighten it again to the preset value. The fastener adopts a rod body or an anchor cable. When a rod body is adopted, the connecting section is fastened with a thread. When an anchor cable is adopted, the end of the male support box is fastened with a thread, and the cable tower is pre-tightened to the set value using an anchor cable tensioner.

[0020] Step 4: Install the fixture to the fastener through the mounting hole, connect the pull rope to the fixture, connect the pull rope sensor and the gasket tightening force sensor to the monitoring controller cable, and the monitoring controller records the collected data and compares it with the set value. If it exceeds the preset value, a warning reminder is issued to the host computer and mobile terminal for inspection;

[0021] Step 5: Connect the male head support box support plate on the same side to the I-beam through the drop frame device, build a parallel support platform on the I-beam, and after the parallel support platform is built, install the beam bottom plate support on its upper part according to the size of the lower part of the beam, and then build the beam bottom plate and beam side plate and cast steel mesh;

[0022] Step 6: Pour into the area enclosed by the completed beam bottom plate and beam side plates. During the pouring process, the monitoring controller monitors the verticality of the gasket tightening force sensor and the rope sensor, compares the value change curve with the preset curve, and determines whether support abnormality occurs. When an abnormality is determined, an alarm is issued in time, and a warning signal is sent to the upper computer and the mobile terminal through the wireless module to remind the user to stop pouring and check for abnormalities.

[0023] Step 7. During the initial and final setting of concrete pouring, the monitoring controller continuously monitors the collected data. When the middle of the beam collapses and causes force changes, corresponding data changes will occur at the gasket fastening force sensor and the pull rope sensor, and the change curve will be recorded and compared with the preset curve in the monitoring controller. When it is determined that the middle collapse has occurred, the wireless module sends a warning signal to the host computer and the mobile terminal.

[0024] The present invention provides a support system and method for the construction of a cross beam in a cable tower. By pre-embedding a female support box, a male support box can be easily connected. Through the matching gap between the two, the male support boxes on the cable towers on the same side and on both sides can be adjusted and tightened, leaving sufficient adjustment space. The pre-embedding of the female support box is also convenient for operation, making the construction support of the cross beam in the cable tower easy to construct and ensuring the horizontality. By monitoring the tightening force and the displacement of the fasteners during the construction process, the entire process of supporting system construction, beam casting and beam solidification can be monitored to prevent the strain of the support system from exceeding the range and the beam from collapsing. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0026] Figure 1 It is a structural schematic diagram of the beam construction support system of the present invention;

[0027] Figure 2 for Figure 1 A local enlarged schematic diagram of the middle A;

[0028] Figure 3 It is a structural schematic diagram of the male head support box;

[0029] Figure 4 It is a structural schematic diagram of the female head support box;

[0030] Figure 5 It is a combined diagram of a male head support box and a female head support box;

[0031] Figure 6 for Figure 1 A partial enlarged schematic diagram of the optimization scheme at point A in the middle;

[0032] Figure 7 It is a connection diagram of a fastener and a fixer;

[0033] Figure 8 It is a schematic diagram of the structure of the female head support box in the optimization scheme;

[0034] Fig. 9 is a schematic diagram of the structure of the fixator;

[0035] Fig.10 This is the electrical schematic diagram of the construction support system.

[0036] In the figure: fastener 1, male head support box 2, male head fastening plate 201, support plate 202, male head plate 203, connecting plate 204, fastening channel 3, female head support box 4, female head fastening plate 401, structural plate 402, slot hole 403, pad 404, landing device 5, parallel support platform 6, cable tower 7, beam bottom plate bracket 8, beam bottom plate 9, beam side plate 10, gasket fastening force sensor 11, fixer 12, first fixing hoop 121, second fixing hoop 122, pull rope fixing hole 123, pull rope fixing screw 124, pull rope 13, pull rope sensor 14, monitoring controller 15, display screen 16, wireless module 17, wireless antenna 18, mounting hole 19. DETAILED DESCRIPTION

[0037] like Figure 1 and 2 As shown in the figure, a crossbeam construction support system for a cable tower includes a male support box 2 and a female support box 4 connected to the cable towers 7 on both sides. The female support box 4 is pre-buried in the cable tower 7 and connected with the male support box 2. One end of the male support box 2 extends out of the cable tower 7. At least two sets of male support boxes 2 and female support boxes 4 are provided on each side of the cable tower 7. A parallel bracket platform 6 is placed on the male support box 2. A crossbeam bottom plate bracket 8 with a top matching the shape of the crossbeam bottom plate 9 is provided above the parallel bracket platform 6. The crossbeam bottom plate 9 is placed on the crossbeam bottom plate bracket 8. Crossbeam side plates 10 are provided on both sides of the crossbeam bottom plate 9.

[0038] By pre-embedding the female support box 4, the male support box 2 can be easily connected, and through the matching gap between the two, the male support box 2 on the same side and both sides of the cable tower 7 can be adjusted and tightened, leaving sufficient adjustment space, and the pre-embedding of the female support box 4 is also easy to operate, making the construction support of the crossbeam in the cable tower easy to construct and ensuring the horizontality.

[0039] like Figure 3 and 4As shown in the figure, the above-mentioned male head support box 2 and female head support box 4 are provided with corresponding through holes in matching positions, the cable tower 7 is provided with a penetrating fastening channel 3, the fastener 1 passes through the fastening channel 3 and the through holes on the male head support box 2 and the female head support box 4, and the two ends of the fastener 1 are fastened to the cable tower 7 and the male head support box 2 respectively.

[0040] By reserving fastening holes 3 and pre-embedding female support boxes 4 during the construction of cable tower 7, the position of male support box 2 can be preliminarily located. All these tasks are completed in one step during the construction of cable tower 7. When it is necessary to build a crossbeam construction support, it is only necessary to insert male support box 2 into female support box 4 and connect and fix it with fastener 1, and then adjust the level and tighten it thoroughly to complete the construction of the support body. Then, the parallel support platform 6, cable tower 7 and crossbeam bottom plate support 8 are gradually built, and then the construction of crossbeam bottom plate 9 and crossbeam side plate 10 is completed, and the casting operation of the crossbeam can be carried out.

[0041] like Figure 3 As shown in the figure, the above-mentioned male head support box 2 is connected by two male head plates 203, and the two sides of the male head plate 203 are respectively connected by a connecting plate 204 and a male head fastening plate 201, and the connecting plate 204 and the male head fastening plate 201 are arranged alternately up and down. The male head fastening plate 201 is provided with a through hole for connecting with the fastener 1. The male head plate 203 located on one side of the male head fastening plate 201 protrudes and can be inserted into the female head support box 4, and a support plate 202 is provided on the top of the male head plate 203.

[0042] Through the protrusion of the male head plate 203, convenient connection with the female head support box 4 is achieved. The protruding part has two major functions: rough positioning and connection. The staggered arrangement of the connecting plates 204 and the male head fastening plates 201 connected on both sides can avoid the connecting plates 204 blocking the fasteners 1. After the male head support box 2 and the female head support box 4 are connected and fixed by the male head fastening plates 201 and the level is adjusted, the parallel bracket platform 6 can be placed on the male head support box 2 on the cable towers 7 on both sides.

[0043] like Figure 4 As shown in the figure, the above-mentioned female head support box 4 is connected by groove bodies on both sides, and the groove bodies on both sides are surrounded by pads 404 and structural plates 402 on the upper and lower sides. There is a slot hole 403 between the pads 404 and the structural plates 402 for inserting the protrusion of the male head plate 203. The groove bodies on both sides are connected by a female head fastening plate 401. The female head fastening plate 401 is provided with a through hole for the fastener 1 to pass through. The position of the through hole corresponds to the position of the fastening channel 3, and the groove body is pre-buried in the cable tower 7.

[0044] During the construction of the cable tower 7, the PVC pipe is connected to the perforations on the female fastening plate 401 and embedded in a predetermined position. The female fastening plate 401 is in a vertical state and located on the inner side of the surface of the cable tower 7. After the casting of the cable tower 7 is completed, the PVC pipe forms a fastening channel 3.

[0045] like Figure 3 As shown in , the male header plate 203 is in an inverted “L” shape, and the protruding portion of the L is located at the top and matches with the slot hole 403 .

[0046] like Figure 8 As shown in FIG. 1 , the slot hole 403 matches and corresponds to the protrusion of the male header plate 203 in an oblique downward manner.

[0047] The slot hole 403 is tilted downward so that the inserted part can be naturally hung, and when the fastener 1 is stretched, the tightening force generates component forces at the male head plate 203 and the slot hole 403, and the force is triangular, which plays a more stable supporting role.

[0048] like Figure 6 , 8 As shown in 10, a gasket fastening force sensor 11 is provided at the connection between the above-mentioned fastener 1 and the male head fastening plate 201, a part of the male head support box 2 is not embedded, and a mounting hole 19 is provided above the unembedded area, and a fixture 12 is provided on the fastener 1 in the unembedded area, and the fixture 12 is connected to the pull rope sensor 14 on the female head fastening plate 401, the gasket fastening force sensor 11 and the pull rope sensor 14 are connected to the input end of the monitoring controller 15, and the monitoring controller 15 is connected to the wireless module 17 for communication, and the wireless module 17 uploads the detected data to the host computer and the mobile terminal.

[0049] The gasket fastening force sensor 11 can detect the fastening force between the fastener 1 and the male fastening plate 201. When the fastener 1 itself has defects such as cracks or breaks, or the male fastening plate 201 is deformed too much, the fastening force changes and is sensed by the monitoring controller 15. It can be viewed in real time from the host computer or mobile terminal and an early warning can be issued. The fixture 12 fixed on the fastener 1 moves in the direction of the tension deformation of the fastener 1, driving the pull rope sensor 14 to move and detect the deformation variable. When the deformation variable exceeds the preset value, an early warning can also be issued.

[0050] like Fig. 9 As shown in the figure, the above-mentioned fixer 12 is formed by fastening a first fixing hoop 121 and a second fixing hoop 122 together. A protrusion is provided on one side of the first fixing hoop 121, and a rope fixing hole 123 for the rope 13 to pass through is provided on the protrusion. A rope fixing screw 124 is provided above the rope fixing hole 123, and the rope 13 is connected to the rope sensor 14.

[0051] The upper and lower split structures of the fixer 12 facilitate the connection with the fastener 1 separately after the fastener 1 is connected to the male fastening plate 201 , and is connected to the pull rope sensor 14 .

[0052] Using the above-mentioned construction method of the crossbeam construction support system in the cable tower, the specific steps of the construction are:

[0053] Step 1: When constructing the cable tower 7, the embedded position of the female support box 4 and the position of the fastening channel 3 are calculated according to the position of the beam and the size of the parallel support platform 6 and the beam bottom plate support 8, the PVC pipe is matched and connected with the perforation of the female fastening plate 401, and positioned in the cast steel mesh of the cable tower 7, and then the cable tower 7 is cast, and wood is inserted into the slot hole 403 to prevent concrete from entering, and a partition is set up at the installation hole 19;

[0054] Step 2: After the casting of the cable tower 7 is completed and the concrete is finally set, before the crossbeam construction is carried out, remove the wood in the slot hole 403 and insert the protruding part of the male head plate 203 on the male head support box 2 into the slot hole 403 of the female head support box 4;

[0055] Step 3, insert the fastener 1 into the PVC pipe and pass through the holes of the male support box 2 and the female support box 4, insert the gasket fastening force sensor 11 into the fastener 1, and make the two ends of the fastener 1 preliminarily fastened to the male fastening plate 201 and the cable tower 7 respectively, use channel steel to be placed on the support plates 202 of the male support box 2 on the same side and both sides for horizontal adjustment, and tighten it again to the preset value after the horizontal adjustment is completed. The fastener 1 adopts a rod body or an anchor cable. When a rod body is adopted, the connecting section is fastened with a thread. When an anchor cable is adopted, the end of the male support box 2 is fastened with a thread, and the cable tower 7 is pre-tightened to the set value using an anchor cable tensioner;

[0056] Step 4: Install the fixture 12 onto the fastener 1 through the mounting hole 19, connect the pull rope 13 to the fixture 12, connect the pull rope sensor 14 and the gasket fastening force sensor 11 to the monitoring controller 15 by cable, and the monitoring controller 15 records the collected data and compares it with the set value. If it exceeds the preset value, a warning reminder is issued to the host computer and the mobile terminal for inspection;

[0057] Step 5: Connect the support plate of the male head support box 2 on the same side to the I-beam through the drop frame device 5, build a parallel support platform 6 on the I-beam, and after the parallel support platform 6 is built, install the beam bottom plate support 8 on its upper part according to the size of the lower part of the beam, and then build the beam bottom plate 9 and the beam side plate 10 and cast the steel mesh;

[0058] Step 6: Pour into the area enclosed by the completed beam bottom plate 9 and the beam side plate 10. During the pouring process, the monitoring controller 15 monitors the verticality of the gasket fastening force sensor 11 and the rope sensor 14, compares the value change curve with the preset curve, and determines whether a support abnormality occurs. When an abnormality is determined, an alarm is issued in time, and a warning signal is sent to the upper computer and the mobile terminal through the wireless module 17 to remind the user to stop pouring and check for abnormalities.

[0059] Step seven, during the initial and final setting of concrete pouring, the monitoring controller 15 continuously monitors the collected data. When the middle part of the beam collapses and causes a change in force, corresponding data changes will occur at the gasket fastening force sensor 11 and the pull rope sensor 14, and the change curve will be recorded and compared with the preset curve in the monitoring controller 15. When it is determined that a collapse in the middle has occurred, the wireless module 17 sends a warning signal to the host computer and the mobile terminal.

Claims

1. A crossbeam construction support system for a cable tower, characterized in that: It comprises a male support box (2) and a female support box (4) connected to the cable towers (7) on both sides, the female support box (4) being pre-buried in the cable tower (7) and connected to the male support box (2), one end of the male support box (2) extending out of the cable tower (7), at least two sets of male support boxes (2) and female support boxes (4) being provided on each cable tower (7), a parallel support platform (6) being placed on the male support box (2), a crossbeam bottom plate support (8) having a top matching the shape of the crossbeam bottom plate (9) being provided above the parallel support platform (6), the crossbeam bottom plate (9) being placed on the crossbeam bottom plate support (8), and crossbeam side plates (10) being provided on both sides of the crossbeam bottom plate (9); The male head support box (2) and the female head support box (4) are provided with corresponding through holes in matching positions, the cable tower (7) is provided with a penetrating fastening channel (3), the fastener (1) passes through the fastening channel (3) and the through holes on the male head support box (2) and the female head support box (4), and the two ends of the fastener (1) are fastened to the cable tower (7) and the male head support box (2) respectively; The male head support box (2) is formed by connecting two male head plates (203), and the two sides of the male head plate (203) are respectively connected by a connecting plate (204) and a male head fastening plate (201), and the connecting plate (204) and the male head fastening plate (201) are arranged alternately up and down, and the male head fastening plate (201) is provided with a through hole for connecting with a fastener (1), and the male head plate (203) located on one side of the male head fastening plate (201) protrudes and can be inserted into the female head support box (4), and a support plate (202) is provided on the top of the male head plate (203); The female head support box (4) is formed by connecting grooves on both sides, and the grooves on both sides are surrounded by upper and lower pads (404) and a structural plate (402). Between the pad (404) and the structural plate (402) is a slot hole (403) for inserting the protruding part of the male head plate (203). The grooves on both sides are connected by a female head fastening plate (401). The female head fastening plate (401) is provided with a through hole for the fastener (1) to pass through. The position of the through hole corresponds to the position of the fastening channel (3). The groove is pre-buried in the cable tower (7); The male head plate (203) is in an inverted "L" shape, with the protruding portion of the L located at the top and matching with the slot hole (403); The slot hole (403) matches and corresponds to the protruding portion of the male header plate (203) in an oblique downward direction; A gasket fastening force sensor (11) is provided at the connection between the fastener (1) and the male head fastening plate (201); a portion of the male head support box (2) is not embedded, and a mounting hole (19) is provided above the unembedded area; a fixer (12) is provided on the fastener (1) in the unembedded area; the fixer (12) is connected to a pull rope sensor (14) on the female head fastening plate (401); the gasket fastening force sensor (11) and the pull rope sensor (14) are connected to the input end of a monitoring controller (15); the monitoring controller (15) is connected to a wireless module (17) for communication; and the wireless module (17) uploads the detected data to a host computer and a mobile terminal.

2. A cable tower middle beam construction support system according to claim 1, characterized in that: The fixing device (12) is formed by a first fixing hoop (121) and a second fixing hoop (122) being fastened together. A protrusion is provided on one side of the first fixing hoop (121). A rope fixing hole (123) is provided on the protrusion for the rope (13) to pass through. A rope fixing screw (124) is provided above the rope fixing hole (123). The rope (13) is connected to a rope sensor (14).

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