An assembled compression strut structure suitable for bridge vertical rotation

Abstract

The application provides an assembled compression rod structure suitable for vertical rotation of a bridge, comprising a spliced compression rod unit, a connecting truss unit and a pressure detection unit, two ends of the connecting truss unit are respectively connected with the spliced compression rod unit, and the pressure detection unit is installed at the bottom of the spliced compression rod unit and used for monitoring the pressure value of the compression rod in real time during construction. The spliced compression rod unit of the application can be disassembled and reused, and does not cause the problem of large waste, the pressure value borne by the compression rod during construction can be monitored in real time through the pressure detection unit, the purpose of reducing construction cost and intelligent real-time monitoring is achieved, and the safety of construction is improved.

Description

Technical Field

[0001] This invention relates to the field of prefabricated building technology, and in particular to a prefabricated compression bar structure suitable for vertical rotation of bridges. Background Technology

[0002] Currently, my country's infrastructure construction is booming, with a large number of bridges completed and their spans becoming increasingly longer. With my country's economic and social development, higher demands are being placed on bridge construction. These demands have evolved from safety and practicality to aesthetic appeal, requiring bridges to integrate well with local history, culture, and environment. Currently, the construction of the main tower columns of traditional cable-stayed bridges often relies on climbing formwork, and the construction of the crossbeams requires elevators, tower cranes, and other equipment to pour concrete in mid-air. This presents problems such as long construction periods, high-altitude construction risks, and high costs.

[0003] To address the aforementioned issues, engineering practitioners have proposed a vertical rotation construction technique for the main tower of cable-stayed bridges. In this technique, the main tower can be assembled on a scaffold erected on the bridge deck and anchored to both the tower and the bridge deck via steel strand cables. A rotating pressure bar is installed in the middle, and the tower is vertically rotated to the designed position before being closed to complete the installation. This construction method has a shorter construction period, lower risk, and reduces labor costs, and has been successfully applied in the construction of several municipal bridges. However, the pressure bar used in the vertical rotation construction bears significant pressure during construction, and currently, there is a problem with the inability to monitor this pressure in real time, posing a certain risk. Furthermore, the pressure bar is typically a welded steel truss structure, which cannot be reused, resulting in some waste. Summary of the Invention

[0004] To address the aforementioned issues, this invention aims to propose a prefabricated compression member structure suitable for vertical rotation of bridges. This structure involves connecting spliced ​​compression member units to both ends of a connecting truss unit. A pressure detection unit is installed at the bottom of each spliced ​​compression member unit to monitor the pressure value of the compression member in real time during construction. The spliced ​​compression member units are disassembled and reused, minimizing waste. Furthermore, the pressure detection unit allows for real-time monitoring of the pressure borne by the compression member during construction, thereby reducing construction costs, providing intelligent real-time monitoring, and improving construction safety.

[0005] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0006] A prefabricated strut structure suitable for vertical rotation of bridges includes spliced ​​strut units, connecting truss units, and pressure detection units. The spliced ​​strut units are connected to both ends of the connecting truss units, and the pressure detection units are installed at the bottom of the spliced ​​strut units to monitor the pressure value of the struts in real time during construction.

[0007] Furthermore, the spliced ​​pressure bar unit includes a first pressure bar unit at the top, a second pressure bar unit in the middle, and a third pressure bar unit at the bottom. At least one set of the second pressure bar units is provided. The first pressure bar unit and the second pressure bar unit, the second pressure bar unit and the third pressure bar unit, or the first pressure bar unit and the second pressure bar unit, adjacent second pressure bar units, and the second pressure bar unit and the third pressure bar unit are all spliced ​​together by connecting sleeves.

[0008] Furthermore, the first pressure bar unit, the second pressure bar unit, and the third pressure bar unit each include two sets of stabilizing bars and two sets of compression main bars. The two sets of stabilizing bars and the two sets of compression main bars are arranged opposite to each other. The stabilizing bars and the compression main bars are welded together by horizontal connecting rods and diagonal braces. The two sets of stabilizing bars are welded together by horizontal connecting rods. The two sets of compression main bars are welded together by horizontal connecting rods to form a spatial force-bearing unit.

[0009] Furthermore, the connecting sleeve includes a stabilizer connecting sleeve and a pressure-bearing main rod connecting sleeve. Both the stabilizer connecting sleeve and the pressure-bearing main rod connecting sleeve are provided with multiple bolt holes. The center of each bolt hole is at the same height as the corresponding bolt hole on the opposite side after passing through the center of the connecting sleeve, forming a pair of bolt holes. Fixing bolts are installed in each pair of bolt holes to splice adjacent stabilizer bars or pressure-bearing main rods in the vertical direction. The heights of the pairs of bolt holes are not consistent and descend in a spiral shape.

[0010] Furthermore, both the stabilizer connecting sleeve and the pressure main rod connecting sleeve have inner ring plates welded to their inner sides for positioning when adjacent stabilizers or pressure main rods are spliced ​​in the vertical direction.

[0011] Furthermore, both sets of main compression rods of the first compression rod unit at the top extend outward and are connected to cable adapters.

[0012] Furthermore, the main compression rod and the stabilizing rod on one side of the first compression rod unit at the top are both welded with lateral connectors, which are connected to one end of the connecting truss unit through the lateral connectors.

[0013] Furthermore, the lower parts of the two sets of pressure-bearing main rods of the third pressure rod unit at the bottom are each connected to a first flange. The first flange is connected to a second flange through a pressure detection unit, and a hinge joint is connected to the bottom of the second flange.

[0014] Furthermore, the pressure detection unit includes a central pressure sensor and an edge pressure sensor. The edge pressure sensor is connected to the second flange by eight bolts around the outer circumference of the first flange. The central pressure sensor is connected to the inner circumference of the first flange by eight bolts around its upper circumference, and to the inner circumference of the second flange by eight bolts around its lower circumference.

[0015] Furthermore, the outer and inner bolt holes of the first flange are misaligned.

[0016] Beneficial effects: This invention connects spliced ​​compression member units to both ends of the connecting truss unit, and a pressure detection unit is installed at the bottom of the spliced ​​compression member unit to monitor the pressure value of the compression member in real time during construction. The spliced ​​compression member unit can be disassembled and reused, avoiding significant waste. The pressure detection unit can also monitor the pressure value borne by the compression member in real time during construction, thereby reducing construction costs and achieving intelligent real-time monitoring, and improving construction safety. Attached Figure Description

[0017] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0018] Figure 1 This is a three-dimensional structural diagram of the prefabricated compression bar structure suitable for vertical rotation of bridges as described in an embodiment of the present invention;

[0019] Figure 2 This is a three-dimensional structural diagram of the spliced ​​pressure bar unit of the prefabricated pressure bar structure applicable to the vertical rotation of bridges, as described in an embodiment of the present invention.

[0020] Figure 3 This is a side view of the spliced ​​pressure bar unit structure of the prefabricated pressure bar structure suitable for vertical rotation of bridges, as described in an embodiment of the present invention.

[0021] Figure 4 This is a schematic diagram of the stabilizer connecting sleeve or the compression main rod connecting sleeve of the prefabricated compression bar structure suitable for vertical rotation of bridges, as described in an embodiment of the present invention.

[0022] Figure 5 for Figure 2 Enlarged diagram of section A in the middle;

[0023] Figure 6 for Figure 3 Enlarged schematic diagram of section B in the middle. Detailed Implementation

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0025] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] Example 1

[0027] See Figure 1-6 A prefabricated pressure bar structure suitable for vertical rotation of bridges includes a spliced ​​pressure bar unit 1, a connecting truss unit 2, and a pressure detection unit 3. The two ends of the connecting truss unit 2 are respectively connected to the spliced ​​pressure bar unit 1, and the pressure detection unit 3 is installed at the bottom of the spliced ​​pressure bar unit 1 to monitor the pressure value of the pressure bar in real time during construction.

[0028] The splicing pressure bar unit in this embodiment can be disassembled and reused, which will not cause a large waste. The pressure detection unit can monitor the pressure value borne by the pressure bar in real time during construction, thereby reducing construction costs and achieving intelligent real-time monitoring, and improving construction safety.

[0029] In a specific example, the spliced ​​pressure bar unit 1 includes a first pressure bar unit 101 at the top, a second pressure bar unit 102 in the middle, and a third pressure bar unit 103 at the bottom. At least one set of the second pressure bar units 102 is provided. The first pressure bar unit 101 and the second pressure bar unit 102, the second pressure bar unit 102 and the third pressure bar unit 103, or the first pressure bar unit 101 and the second pressure bar unit 102, adjacent second pressure bar units 102, and the second pressure bar unit 102 and the third pressure bar unit 103 are all spliced ​​together by connecting sleeves 4.

[0030] The splicing structure of the pressure bar unit in this embodiment is simple. The first pressure bar unit at the top, at least one set of second pressure bar units in the middle, and the third pressure bar unit at the bottom can be spliced ​​together by connecting sleeves, and can be reused.

[0031] In a specific example, the first pressure bar unit 101, the second pressure bar unit 102, and the third pressure bar unit 103 each include two sets of stabilizing bars 5 and two sets of pressure-bearing main bars 6. The two sets of stabilizing bars 5 and the two sets of pressure-bearing main bars 6 are arranged opposite to each other. The stabilizing bars 5 and the pressure-bearing main bars 6 are welded together by horizontal connecting rods 7 and diagonal web bars 8, the two sets of stabilizing bars 5 are welded together by horizontal connecting rods 7, and the two sets of pressure-bearing main bars 6 are welded together by horizontal connecting rods 7 to form a spatial force-bearing unit.

[0032] The first, second, and third compression bar units in this embodiment have simple structures. The two sets of stabilizing bars and the main compression bar are welded together by horizontal connecting bars and diagonal web bars to form a spatial force-bearing unit with high strength and good load-bearing capacity.

[0033] In a specific example, the connecting sleeve 4 includes a stabilizer connecting sleeve 401 and a pressure-bearing main rod connecting sleeve 402. Both the stabilizer connecting sleeve 401 and the pressure-bearing main rod connecting sleeve 402 are provided with multiple bolt holes. The center of each bolt hole is at the same height as the corresponding bolt hole on the opposite side after passing through the center of the connecting sleeve, forming a pair of bolt holes. Fixing bolts 9 are installed in each pair of bolt holes to splice adjacent stabilizer bars 5 or pressure-bearing main rods 6 in the vertical direction. The heights of the pairs of bolt holes are not consistent and descend in a spiral shape.

[0034] It should be noted that the connecting sleeve in this embodiment is specially designed with several bolt holes passing through the center of the connecting sleeve. The height of each pair of bolt holes is consistent, and the height of each pair of bolt holes is inconsistent and descends in a spiral shape. The vertically adjacent stabilizing rods or pressure-bearing main rods are spliced ​​together by the spiral descending fixing bolts in the circumferential direction of the connecting sleeve. It has high resistance to pressure and torque, high splicing strength, uniform force distribution, easy disassembly, and a solid structure.

[0035] In a specific example, both the stabilizer connecting sleeve 401 and the pressure main rod connecting sleeve 402 have inner ring plates 10 welded to their inner sides for positioning when adjacent stabilizer rods 5 or pressure main rods 6 are spliced ​​in the vertical direction.

[0036] In this embodiment, the inner ring plate positions the stabilizer bar or the main compression bar during splicing, which can improve the alignment between the bolt holes of the stabilizer bar or the main compression bar and the bolt holes of the corresponding connecting sleeve. In addition, it can isolate adjacent stabilizer bars or main compression bars in the vertical direction to prevent them from colliding, thereby improving the splicing speed and stability.

[0037] In a specific implementation, the wall thickness of the inner ring plate in this embodiment is not less than the wall thickness of the corresponding connecting sleeve, the width of the inner ring plate is not less than twice the wall thickness of the main rod or stabilizer, and the height of the connecting sleeve is not less than 1.5 times the outer diameter of the main rod or stabilizer.

[0038] In a specific example, both sets of pressure main rods 6 of the first pressure rod unit 101 at the top extend outward and are connected to cable adapters 11.

[0039] In this embodiment, the cable adapter is welded to the compression main rod at the top of the compression member structure. The lengths of the compression main rods at the top and bottom of the compression member structure are both greater than the lengths of the stabilizing rods in their corresponding compression member units. Thus, when the compression member structure of this embodiment works in conjunction with the vertical rotation of the bridge, it provides a sufficiently large rotation space to prevent the cable from interfering with or colliding with other compression member structures.

[0040] In a specific example, the main compression rod 6 and the stabilizing rod 5 on one side of the first compression rod unit 101 at the top are both welded with lateral connectors 12, which are connected to one end of the connecting truss unit 2.

[0041] The lateral connector in this embodiment is constructed by welding at least three vertical circular steel pipes and a circular flange. The circular flange has multiple bolt holes arranged in a ring. The connecting truss unit is constructed by welding an upper chord, a lower chord, vertical web members, and diagonal web members. Flanges are welded to the ends of the upper and lower chords, and bolt holes are provided on the flanges. The circular flanges at both ends of the connecting truss unit are connected to the compression member structure via flanges and are assembled and connected by bolts to form a compression member structure system.

[0042] In a specific example, the lower parts of the two sets of pressure main rods 6 of the bottom third pressure rod unit 103 are both connected to a first flange 13. The first flange 13 is connected to a second flange 14 through a pressure detection unit 3. The bottom of the second flange 14 is connected to a hinge joint 15.

[0043] In this embodiment, the pressure detection unit is installed between the first flange and the second flange, resulting in more uniform force distribution and a stable installation structure.

[0044] In a specific example, the pressure detection unit 3 includes a central pressure sensor 301 and an edge pressure sensor 302. The edge pressure sensor 302 is connected to the second flange 14 by eight bolts around the outer circumference of the first flange 13. The central pressure sensor 301 is connected to the inner circumference of the first flange 13 by eight bolts around the upper circumference, and the central pressure sensor 301 is connected to the inner circumference of the second flange 14 by eight bolts around the lower circumference.

[0045] The pressure detection unit in this embodiment is specially designed to improve the installation strength of the pressure detection unit. It consists of a central pressure sensor and eight circumferentially mounted edge pressure sensors. The pressure sensors are cylindrical and flat, and their upper and lower ends are connected to the first and second flanges by eight bolts on the outer periphery, resulting in a stable installation structure. The central pressure sensor can detect the main pressure value P1 of the pressure rod. By adding the pressure value P2 monitored by the eight edge pressure sensors that are bolted between the first and second flanges, the real-time pressure value P1+8P2 of the pressure rod under working conditions can be accurately obtained.

[0046] In one specific example, the outer ring bolt holes of the first flange 13 are misaligned with the inner ring bolt holes.

[0047] In this embodiment, the bolt holes of the outer and inner rings of the first and second flanges are misaligned to prevent bending moments from damaging the sensor structure, resulting in more uniform stress distribution and more accurate pressure measurements.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A prefabricated compression member structure suitable for vertical rotation of bridges, characterized in that, The system includes a spliced ​​compression member unit (1), a connecting truss unit (2), and a pressure detection unit (3). The two ends of the connecting truss unit (2) are respectively connected to the spliced ​​compression member unit (1). The pressure detection unit (3) is installed at the bottom of the spliced ​​compression member unit (1) to monitor the pressure value of the compression member in real time during construction. The spliced ​​compression member unit (1) includes a first compression member unit (101) at the top, a second compression member unit (102) in the middle, and a third compression member unit (103) at the bottom. At least one set of the second compression member unit (102) is provided. The first compression member unit (101) and the second compression member unit (102) are connected together. The second pressure bar unit (102) and the third pressure bar unit (103), or the first pressure bar unit (101) and the second pressure bar unit (102), adjacent second pressure bar units (102), and the second pressure bar unit (102) and the third pressure bar unit (103) are all connected by connecting sleeves (4). The first pressure bar unit (101), the second pressure bar unit (102), and the third pressure bar unit (103) each include two sets of stabilizing bars (5) and two sets of pressure-bearing main bars (6). The two sets of stabilizing bars (5) and the two sets of pressure-bearing main bars (6) are arranged opposite to each other. The stabilizing bars (5) and the pressure-bearing main bars (6) are connected by horizontal connecting rods. (7) is welded to the diagonal brace (8), the two sets of stabilizer bars (5) are welded to each other through the horizontal connecting rod (7), and the two sets of compression main bars (6) are welded to each other through the horizontal connecting rod (7) to form a spatial force unit. The connecting sleeve (4) includes a stabilizer bar connecting sleeve (401) and a compression main bar connecting sleeve (402). The stabilizer bar connecting sleeve (401) and the compression main bar connecting sleeve (402) are both provided with multiple bolt holes. The center of each bolt hole is at the same height as the center of the corresponding bolt hole on the opposite side after passing through the center of the connecting sleeve, forming a pair of bolt holes. Fixing bolts (9) are installed in each pair of bolt holes to splice the vertical square. The height of each pair of bolt holes of the adjacent upward stabilizer bar (5) or the main bar under pressure (6) is inconsistent and descends in a spiral shape. The inner side of the middle part of the stabilizer bar connecting sleeve (401) and the main bar under pressure connecting sleeve (402) is welded with an inner ring plate (10) for positioning when the adjacent stabilizer bar (5) or the main bar under pressure (6) in the vertical direction is spliced. The lower part of the two sets of main bars under pressure (6) of the bottom third pressure bar unit (103) is connected to a first flange (13). The first flange (13) is connected to a second flange (14) through a pressure detection unit (3). The bottom of the second flange (14) is connected to a hinge joint (15).

2. The prefabricated compression member structure suitable for vertical rotation of bridges according to claim 1, characterized in that, The two sets of main compression rods (6) of the first compression rod unit (101) at the top extend outward and are connected to cable adapters (11).

3. The prefabricated compression member structure suitable for vertical rotation of bridges according to claim 1, characterized in that, The main compression rod (6) and the stabilizing rod (5) on one side of the first compression rod unit (101) at the top are both welded with lateral connectors (12), which are connected to one end of the connecting truss unit (2) through the lateral connectors (12).

4. The prefabricated compression member structure suitable for vertical rotation of bridges according to claim 1, characterized in that, The pressure detection unit (3) includes a central pressure sensor (301) and an edge pressure sensor (302). The edge pressure sensor (302) is connected to the second flange (14) by eight bolts on the outer circumference of the first flange (13). The central pressure sensor (301) is connected to the inner circumference of the first flange (13) by eight bolts on the upper circumference and to the inner circumference of the second flange (14) by eight bolts on the lower circumference.

5. The prefabricated compression member structure suitable for vertical rotation of bridges according to claim 4, characterized in that, The outer and inner bolt holes of the first flange (13) are misaligned.

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