A horizontal lifeline system for railway t-beam wet joint construction
By designing a horizontal lifeline system for the construction of wet joints of railway T-beams, and using the load-bearing columns, the top surface of the piers, and the transverse diaphragms of the T-beams as the points of force, a continuous safety anchor point is provided. This solves the problems of cumbersome installation and lack of safety protection in traditional safety belt installation, and achieves full-cycle safety protection and efficient construction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY SHANGHAI ENGINEERING GROUP NO 5 ENGINEERING CO LTD
- Filing Date
- 2025-09-09
- Publication Date
- 2026-07-28
AI Technical Summary
In the construction of wet joints of railway T-beams, the traditional method of installing safety belts is cumbersome and lacks safety protection during the dismantling stage, posing a risk of falls from heights.
Design a horizontal lifeline system including a load-bearing rope, a buffer, a tensioner, a load-bearing column, an anti-tilting device, and a safety rope suspension assembly. The load-bearing column, the top surface of the pier, and the transverse diaphragm of the T-beam serve as the points of force to provide continuous safety anchor points. The safety rope is indirectly connected to the load-bearing rope to jointly bear the fall load.
It achieves full-cycle safety protection for wet joint construction, reduces the cumbersome operation of frequently removing and attaching safety belts and the risk of falls, improves the reliability and safety of the system, and does not affect the construction progress.
Smart Images
Figure CN224565811U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bridge construction safety protection technology, specifically to a horizontal lifeline system for wet joint construction of railway T-beams. Background Technology
[0002] Railway T-beams are a common type of superstructure for railway bridges, typically consisting of two or four T-beams in a transverse span. After being erected on the piers, the T-beams in the same span are connected as a whole by the lower transverse diaphragm, the upper transverse diaphragm, and the wet joints of the bridge deck.
[0003] Wet joint construction involves suspended work. Currently, a working platform is typically erected using the horseshoe-shaped surfaces of the bottom slabs of two adjacent T-beams. This platform provides safety protection for the construction of reinforcing steel, formwork, and concrete at the wet joint. However, the erection and dismantling of the platform still pose a significant risk of falls from height. During the platform erection phase, the traditional method involves attaching safety belts to the embedded reinforcing steel at the bridge deck's wet joint. This method requires frequent attachment and removal of the safety belt, making it cumbersome. Furthermore, during the platform dismantling phase, since the bridge deck's wet joint has already been poured, there are no exposed embedded reinforcing steel points for safety belt attachment, thus failing to provide fall protection and posing a significant safety risk.
[0004] Therefore, it is essential to research a device that can provide installation protection for the entire construction cycle of wet joints in railway T-beams. Utility Model Content
[0005] This invention provides a horizontal lifeline system for the construction of wet joints in railway T-beams. When used in conjunction with a safety belt, it can provide fall protection for workers at heights throughout the entire construction cycle of wet joints in railway T-beams, preventing falls from heights.
[0006] To achieve the above objectives, the technical solution of this utility model is as follows: A horizontal lifeline system for wet joint construction of railway T-beams includes: load-bearing rope; The buffer comprises two, with their inner ends respectively connected to the two ends of the load-bearing rope; The tensioner comprises two devices, with their inner ends respectively connected to the outer ends of the two buffers; The supporting column comprises two columns, the inner sides of which are respectively connected to the outer ends of the tensioner, and are vertically arranged on the two opposite outer sides of the upper and lower horizontal partitions of the two adjacent T-beams. The tensioner is used to tension the column to achieve its positioning. The anti-tilting device has two parts, including anti-tilting rods and anti-tilting connectors. The anti-tilting rods are respectively cross-connected to the two bearing columns through the anti-tilting connectors and are supported on the horseshoe surfaces of the opposite web plates of the two adjacent T beams. The safety rope suspension assembly includes two parts, which are used to engage in the front and rear span joints of the T-beam; The safety rope comprises two ropes, the lower ends of which are respectively connected to the outer ends of the buffer, and the upper ends are connected to the lower ends of the safety rope suspension assembly via detachable connectors.
[0007] Preferably, the supporting column includes a column body and a pull ring. The column body has a rectangular cross-section and a pull ring on one side. The pull ring is used to connect with the tensioner.
[0008] Preferably, the column body has an elongated hole, the anti-tilt rod has a round hole, and the anti-tilt connector is a connecting bolt. The connecting bolt can be matched to pass through the elongated hole of the column body and the round hole of the anti-tilt rod, so that the column body and the anti-tilt rod are fastened together.
[0009] Preferably, the anti-roll bar has two inclined surfaces at both ends, and the angle of the inclined surfaces matches the horseshoe surface of the web of the T-beam.
[0010] Preferably, the safety rope suspension assembly includes a limiting plate, an insert plate, and a detachable connector. The length of the limiting plate is greater than the width of the front and rear span gaps of the T-beam. The bottom surface of the limiting plate is fixedly connected to the top surface of the insert plate. The insert plate can be matched and inserted between the front and rear span gaps of the T-beam. The lower end is movably connected to the detachable connector, which is a shackle.
[0011] Preferably, the tensioner is a ratchet tensioner.
[0012] Preferably, the length of the supporting column is not greater than the distance between the top surface of the pier and the bottom surface of the T-beam bridge deck, and not less than the distance between the top surface of the pier and the bottom surface of the upper transverse diaphragm of the T-beam.
[0013] Preferably, the load-bearing rope is a plastic-coated steel wire rope; the safety rope is a plastic-coated steel wire rope.
[0014] Preferably, the two ends of the load-bearing rope are respectively provided with wire rope clamps to form rope loops at both ends.
[0015] Preferably, the safety rope is provided with wire rope clamps at both ends to form rope loops at both ends.
[0016] Before using the horizontal lifeline system described above for wet joint construction of railway T-beams, the load-bearing rope, two buffers, two safety ropes, and detachable connectors are first connected as a whole. This system is then lowered from the bridge deck of the T-beam through the gap between the bridge panels of the same span, with the detachable connectors suspended within the hoops of the exposed reinforcing bars on the T-beam bridge panel. Workers then use ladders to descend from the end gap of the same span T-beam bridge panel to the top of the pier. Simultaneously, the load-bearing column is erected on the top of the pier, and the anti-tilting rod is connected to the load-bearing column in a cross shape using anti-tilting connectors. The height of the anti-tilting rod is then adjusted to ensure it is properly positioned. After the two ends of the T-beam contact the horseshoe-shaped surfaces of the web plates on both sides, the anti-tilting connectors are locked to help maintain the balance of the load-bearing columns in the transverse direction of the bridge. Then, the load-bearing columns and buffers are connected by a tensioner, and the tensioner is tightened to taut the load-bearing rope. The safety rope suspension assembly (excluding the detachable connector) is placed on the top surface of the T-beam at both ends of the front and rear span joints. The detachable connector is removed from the hoop of the exposed steel reinforcement of the T-beam bridge deck and connected to the safety rope suspension assembly (excluding the detachable connector) to form a whole. At this point, the installation of the entire horizontal lifeline system for the construction of wet joints of railway T-beams is completed.
[0017] During the construction of wet joints, the load-bearing ropes in the horizontal lifeline system provide continuous anchor points for the safety belts of workers, thereby providing fall safety protection for workers throughout the entire wet joint construction process.
[0018] After the wet joint construction of one span of T-beam is completed and the wet joint work platform is dismantled and moved forward, when it is necessary to install the horizontal lifeline system for the next span, the workers first use a construction basket or ladder to descend from the outer side of the rear end of the T-beam to the top surface of the rear pier. They then remove the detachable connector above the rear pier from the safety rope suspension assembly, loosen the tensioner, disconnect the load-bearing rope from the buffer, lower one end of the load-bearing rope to the ground under the bridge, remove the anti-tilt rod and the anti-tilt connector of the load-bearing column at the rear pier, and lift the safety rope suspension assembly (excluding the detachable connector), load-bearing column, anti-tilt rod, along with the tensioner and buffer connected to them, out of the beam joint of the rear span. The bridge deck workers cooperate to pull them to the bridge deck and transfer them to the top of the front pier of the previous span. Workers then descend via ladder through the end gap of the T-beam bridge deck of the same span as the front pier to the top surface of the front pier. They loosen the tensioner above the front pier, remove the detachable connector from the safety rope suspension assembly, and rotate the original front-mounted load-bearing column, its connected anti-tilting device, tensioner, and buffer 180 degrees to serve as the rear-end device for the next span. Simultaneously, they pull up the load-bearing rope and pass it to the workers on the bridge deck, connecting it to the detachable connector removed from the rear pier, and then proceeding along the same path as the previous span. The gap between the T-beam bridge decks is pulled to the front end of the previous span; the load-bearing column, tensioner, and buffer at the front pier are connected to the load-bearing rope; the anti-tilt bar is connected to the load-bearing column using anti-tilt connectors, and the height of the anti-tilt bar is adjusted so that both ends contact the horseshoe surfaces of the T-beam webs on both sides; the tensioners at both ends are tightened simultaneously; finally, the detachable connectors at both ends are connected to the safety rope suspension assembly (excluding the detachable connectors) and the buffer, completing the installation of the horizontal lifeline system for the next span's wet joint construction. During the above process of replacing the horizontal lifeline system, the workers only need to operate on the pier top, which is designed with a permanent hanging fence to provide edge safety protection for the workers, ensuring the safety of the operation.
[0019] Compared with the prior art, the present invention has the following beneficial effects: (1) The bearing column of this utility model takes the top surface of the bridge pier as the vertical force point and the lower and upper horizontal diaphragms of the T-beam as the horizontal force points. After the load-bearing rope is tightened by the tensioner, it can provide continuous hanging points for the safety belt. There is no need to frequently remove and reattach the safety belt due to changes in the work position, and it does not affect the construction of wet joints. It can provide fall safety protection throughout the entire construction cycle of wet joints.
[0020] (2) The safety rope of this utility model is indirectly connected to the load-bearing rope through the buffer. The safety rope can transfer the tension of the load-bearing rope to the top surface of the T-beam when a fall occurs through the safety rope suspension assembly, and share the fall load with the load-bearing column, thereby improving the load-bearing capacity of the system. At the same time, it can also reduce the possibility of protection failure caused by wear and damage of the tensioner, and improve the reliability of the whole system.
[0021] (3) The load-bearing column of this utility model is equipped with an anti-tilting bar. The anti-tilting bar is supported on the horseshoe surface of the web of the T beam, which can resist the lateral horizontal component force on the system, greatly reducing the probability of the load-bearing column tilting to the side and improving the reliability of the whole system.
[0022] (4) This utility model has a simple structure, is easy to install and dismantle, and can significantly improve the safety of wet joint construction operations. Attached Figure Description
[0023] Figure 1 This is a side view of the working structure of an embodiment of the present invention.
[0024] Figure 2 This is a schematic diagram of the working end face structure of an embodiment of the present invention.
[0025] Figure 3 for Figure 1 Enlarged structural diagram of the central support column.
[0026] Figure 4 for Figure 2 Enlarged structural diagram of the anti-roll bar.
[0027] Figure 5 This is a schematic diagram of the safety rope suspension assembly of this utility model.
[0028] Figure 6 for Figure 5 A side view diagram.
[0029] Figure 7 for Figure 5 A top-down view.
[0030] In the diagram, 1—pier, 11—padstone, 2—T-beam, 21—lower transverse diaphragm, 22—upper transverse diaphragm, 23—T-beam web, 231—T-beam web horseshoe surface, 24—T-beam bridge deck, 241—T-beam bridge deck exposed reinforcement, 25—beam joint, 3—bearing column, 31—column body, 32—pull ring, 33—oblong hole, 4—anti-tilting device, 41—anti-tilting rod, 411—round hole, 42—connecting bolt, 5—tensioner, 6—buffer, 7—load-bearing rope, 8—safety rope, 9—safety rope hanging assembly, 91—limiting plate, 92—insertion plate, 93—detachable connector. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0032] In the description of this utility model, it should be noted that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. They are only used to facilitate the description of this utility model and to simplify the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0033] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0034] like Figure 1 and Figure 2The aforementioned horizontal lifeline system for wet joint construction of railway T-beams includes a load-bearing rope 7, a buffer 6, a tensioner 5, a load-bearing column 3, an anti-tilting device 4, a safety rope suspension assembly 9, and a safety rope 8. The load-bearing rope 7 is the main load-bearing component. Two buffers 6 are included, with their inner ends connected to both ends of the load-bearing rope 7. Two tensioners 5 are included, with their inner ends connected to the outer ends of the two buffers 6. Two load-bearing columns 3 are included, with their inner sides connected to the outer ends of the tensioners 5, and are vertically positioned on the opposite outer sides of the lower transverse diaphragm 21 and upper transverse diaphragm 22 at both ends of two adjacent T-beams 2, i.e., on the front side of the lower transverse diaphragm 21 and upper transverse diaphragm 22. Here, "front side" refers to the side closest to that end. On one side of the beam joint 25, the supporting column 3 is tensioned by the tensioner 5 to achieve its positioning; the anti-tilting device 4, which has two parts, includes an anti-tilting rod 41 and an anti-tilting connector. The anti-tilting rod 41 is detachably cross-connected to the two supporting columns 3 through the anti-tilting connector, and both ends are supported on the horseshoe surface 231 of the web of the two adjacent T-beams. For easy disassembly, the anti-tilting connector can be a connecting bolt 42; the safety rope suspension assembly 9, which has two parts, is used to be locked in the beam joint 25 of the front and rear spanning T-beams 2; the safety rope 8, which has two parts, has its lower end connected to the outer end of the buffer 6, and its upper end crosses the side of the supporting column 3 away from the T-beam, and is connected to the lower end of the safety rope suspension assembly through a detachable connector. The outer end and inner end mentioned above are relative, with the end closer to the supporting column 3 being the outer end and the end farther from the supporting column 3 being the inner end.
[0035] Before use, the load-bearing rope 7, two buffers 6, two safety ropes 8, and detachable connector 93 are connected as a whole. The rope is then lowered from the bridge deck of T-beam 2 through the gap in the bridge deck panel 24 of the same span, and the detachable connector 93 is suspended within the hoops of the exposed reinforcing bars 241 of the bridge deck panel 24. Workers then use a ladder to descend from the end gap of the bridge deck panel 24 of the same span to the top surface of pier 1. Simultaneously, the load-bearing column 3 is erected on the top surface of pier 1, with the load-bearing column 3 tightly attached to the pier top pad stone 11 and the lower transverse diaphragm 21 and upper transverse diaphragm 22 of T-beam 2. Figure 2As shown, the anti-tilt rod 41 is connected to the bearing column 3 in a cross shape using anti-tilt connectors. After adjusting the height of the anti-tilt rod 412 so that both ends of the anti-tilt rod 412 contact the horseshoe surface 231 of the web of the T-beam on the left and right sides, the connecting bolts 42 are tightened to help maintain the balance of the bearing column 3 in the transverse direction of the bridge. Then, the bearing column 3 and the buffer 6 are connected by the tensioner 5, and the tensioner 5 is tightened to tighten the load-bearing rope 7. The safety rope hanging assembly 9 (excluding the detachable connector 93) is placed on the top surface of the T-beam 2 at both ends of the front and rear span joint 25. The detachable connector 93 is removed from the hoop of the exposed steel bar 241 of the T-beam bridge deck 24 and connected to the safety rope hanging assembly 9 (excluding the detachable connector 93) to form a whole. At this time, the installation of the entire horizontal lifeline system for the construction of wet joints of railway T-beams is completed.
[0036] In the aforementioned horizontal lifeline system, with the load-bearing rope 7 as the center, the buffer 6, the tensioner 5, and the load-bearing column 3 are connected in sequence. The load-bearing column 3 uses the top surface of the pier 1 as the vertical force point, and the lower transverse diaphragm 21 and upper transverse diaphragm 22 of the T-beam 2 as the longitudinal horizontal force points. After connecting the anti-tilt bar 41, the horseshoe surface 231 of the web of the T-beam is used as the transverse horizontal force point. The anti-tilt bar 41 can resist the transverse horizontal component force on the system, greatly reducing the probability of the load-bearing column 3 tilting laterally, and providing stable support for the load-bearing rope 7, the buffer 6, and the tensioner 5. After the load-bearing rope 7 is tightened by the tensioner 5, it can provide continuous attachment points for the safety belt, eliminating the need to frequently remove and reattach the safety belt due to changes in the work position, and does not affect the construction of wet joints. It can provide fall safety protection throughout the entire construction cycle of wet joints. In addition, this system is equipped with a safety rope suspension assembly 9 and a safety rope 8. The safety rope 8 is indirectly connected to the load-bearing rope 7 through a buffer 6 and is slightly taut under tension. The safety rope suspension assembly 9 is arranged on the top surface of the T-beam bridge deck 24 at both ends of the beam joint 25. In the event of a fall, the safety rope 8 can transfer part of the tension on the load-bearing rope 7 to the top surface of the T-beam bridge deck 24 through the safety rope suspension assembly 9, sharing the fall load with the load-bearing column 3, greatly improving the safety of the entire system. This embodiment comprehensively utilizes the anti-tilt bar 41, the load-bearing column 3, the safety rope 8, and the safety rope suspension assembly 9 to provide multiple protections for wet joint construction. Compared with the traditional method of erecting a working platform, it does not require the installation of embedded parts on the pier top, does not change the original bridge structural design, and also helps to reduce construction costs.
[0037] After the wet joint construction of one span of T-beam is completed and the wet joint work platform is dismantled and moved forward, when it is necessary to install the horizontal lifeline system of the next span, the workers first use a construction basket or ladder to go down to the top of the rear pier from the outside of the rear end of the T-beam. They then remove the detachable connector 93 above the rear pier from the safety rope hanging assembly 9, loosen the tensioner 5, disconnect the load-bearing rope 7 from the buffer 6, lower one end of the load-bearing rope 7 to the ground under the bridge, remove the connecting bolts 42 between the anti-tilt bar 41 and the load-bearing column 3 at the rear pier, and lift the safety rope hanging assembly 9 (except for the detachable connector 93), the load-bearing column 3, the anti-tilt bar 41, together with the tensioner 5 and the buffer 6 connected to them, out of the beam joint 25 of the rear span. The bridge deck workers cooperate to pull them to the bridge deck and transfer them to the top of the front pier of the previous span. Workers then descend via ladder from the end gap of the T-beam deck 24 of the front pier to the top surface of the front pier. They loosen the tensioner 5 above the front pier, remove the detachable connector 93 from the safety rope suspension assembly 9, and rotate the original front-mounted support column 3, the connected anti-tilting device 4, tensioner 5, and buffer 6 180 degrees to serve as the rear end device for the next span. Simultaneously, they pull up the load-bearing rope 7 and pass it to the workers on the bridge deck, connecting it to the detachable connector 93 originally removed from the rear pier, and then along the same span T-beam deck of the previous span... The gap between the bridge deck 24 is pulled to the front end of the previous span; the load-bearing column 3, tensioner 5, buffer 6 and load-bearing rope 7 at the front pier are connected, the anti-tilt bar 41 is connected to the load-bearing column 3 with connecting bolts 42 and the height of the anti-tilt bar 41 is adjusted so that both ends are in contact with the horseshoe surface 231 of the web of the T beam, and the tensioners 5 at both ends are tightened simultaneously. Finally, the detachable connectors 93 at both ends are connected to the safety rope hanging assembly 9 (the part other than the detachable connectors 93) and the buffer 6 to complete the installation of the horizontal lifeline system for the construction of the wet joint of the next span.
[0038] Preferably, the supporting column 3 includes a column body 31 and a pull ring 32. The transverse cross-section of the column body 31 is rectangular, and a rectangular steel pipe can be used, which reduces the likelihood of rolling and improves the safety of the system. A pull ring 32 is provided on the upper side of the column body 31. The pull ring 32 is used to connect with the tensioner 5 for easy installation and disassembly. The pull ring 32 can be U-shaped and can be made of bent round steel. After being welded to the column body 31, it can provide a stress anchor point.
[0039] An elongated hole 33 is provided on the column body 31 for installing the connecting bolt 42 to connect the anti-tilting rod 41. The elongated hole 33 is larger in the height direction than in the horizontal direction. Correspondingly, the anti-tilting rod 41 is provided with a circular hole 411 to pass through the connecting bolt 42. When connecting the anti-tilting rod 41 and the column body 31, the positions of the elongated hole 33 of the anti-tilting rod 41 and the circular hole 411 of the column body 31 are aligned. Since the anti-tilting rod 41 is provided with an elongated hole 33, the installation height of the connecting bolt 42 can be adjusted within a certain range to adapt to the deviation of the spacing between the web plates 23 of the two adjacent T-beams and the deviation of the height difference between the top surface of the T-beam 2 and the pier 1. This ensures that while the bearing column 3 is under stress on the top surface of the pier 1, the two ends of the anti-tilting rod 41 contact the horseshoe surface 231 of the T-beam web plate to provide lateral support for the bearing column 3. In addition, to ensure that the supporting column 3 forms a horizontal force point between the lower diaphragm 21 and the upper diaphragm 22, the length of the supporting column 3 should be designed to be no greater than the distance between the top surface of the pier 1 and the bottom surface of the T-beam bridge deck 24, and no less than the distance between the top surface of the pier 1 and the bottom surface of the upper diaphragm 22 of the T-beam 2.
[0040] Preferably, the two ends of the anti-tilt rod 41 are inclined, and the angle of the inclined surface matches the horseshoe surface 231 of the web of the T-beam, so as to increase the bearing area of the anti-tilt rod 41 and improve its load-bearing performance. When a fall accident occurs, since the fall load is on the upper part of the bearing column 3, the lateral horizontal force generated by the fall load will generate an overturning moment on the bearing column 3 about its support point on the pier 1. The reaction force of the anti-tilt rod 41 and the web 23 of the T-beam is transmitted to the bearing column 3 through the connecting bolt 42, thereby generating a resisting moment that cancels out the overturning moment, greatly reducing the probability of the bearing column 3 tilting laterally.
[0041] The safety rope suspension assembly 9 includes a limiting plate 91, an insert plate 92, and a detachable connector 93. The length of the limiting plate 91 is greater than the width of the beam gap 25 between the front and rear spans of the T-beams 2, so that the tension of the safety rope can be transferred to the top surface of the T-beams 2 through the limiting plate 91. The bottom surface of the limiting plate 91 is fixedly connected to the top surface of the insert plate 92. The insert plate 92 can be fitted and inserted between the beam gap 25 between the front and rear spans of the T-beams 2, thus preventing excessive displacement of the limiting plate 91. The lower end of the insert plate 92 is movably connected to the detachable connector 93, which is a shackle. The length of the insert plate 92 is such that the safety rope 8, when taut, does not contact the upper transverse partition 22. The limiting plate 91 can be made of steel plate, and the insert plate 92 can be made of shaped steel, such as I-beam. The shackle can be D-shaped or bow-shaped. A hole is made in the lower part of the insert plate 92, and the shackle can quickly pass through the hole through the shackle pin to form a movable connection with the insert plate 92, which improves the convenience of operation.
[0042] Preferably, the tensioner 5 is a ratchet tensioner, which can easily tighten the load-bearing rope 7.
[0043] Preferably, the load-bearing rope 7 is made of plastic-coated steel wire rope. Plastic-coated steel wire rope is wear-resistant, has good load-bearing capacity, and has a longer service life compared to plain steel wire rope. Similarly, the safety rope 8 is also preferably made of plastic-coated steel wire rope.
[0044] Preferably, the two ends of the load-bearing rope 7 are respectively provided with wire rope clamps to form rope loops at both ends, which facilitates connection and adjustment of the length of the load-bearing rope 7. Similarly, the two ends of the safety rope 8 are also preferably provided with wire rope clamps to form rope loops at both ends.
[0045] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.
Claims
1. A horizontal lifeline system for wet joint construction of railway T-beams, characterized in that... include: load-bearing rope; The buffer comprises two, with their inner ends respectively connected to the two ends of the load-bearing rope; The tensioner comprises two devices, with their inner ends respectively connected to the outer ends of the two buffers; The supporting column comprises two columns, the inner sides of which are respectively connected to the outer ends of the tensioner, and are vertically arranged on the two opposite outer sides of the upper and lower horizontal partitions of the two adjacent T-beams. The tensioner is used to tension the column to achieve its positioning. The anti-tilting device has two parts, including anti-tilting rods and anti-tilting connectors. The anti-tilting rods are respectively cross-connected to the two bearing columns through the anti-tilting connectors and are supported on the horseshoe surfaces of the opposite web plates of the two adjacent T beams. The safety rope suspension assembly includes two parts, which are used to engage in the front and rear span joints of the T-beam; The safety rope comprises two ropes, the lower ends of which are respectively connected to the outer ends of the buffer, and the upper ends are connected to the lower ends of the safety rope suspension assembly via detachable connectors.
2. The horizontal lifeline system for wet joint construction of railway T-beams according to claim 1, characterized in that: The supporting column includes a column body and a pull ring. The column body has a rectangular cross-section and a pull ring on one side. The pull ring is used to connect with the tensioner.
3. A horizontal lifeline system for wet joint construction of railway T-beams according to claim 2, characterized in that: The column body has an elongated hole, the anti-tilt rod has a round hole, and the anti-tilt connector is a connecting bolt. The connecting bolt can be matched to pass through the elongated hole of the column body and the round hole of the anti-tilt rod, so that the column body and the anti-tilt rod are fastened together.
4. A horizontal lifeline system for wet joint construction of railway T-beams according to claim 1 or 3, characterized in that: The anti-roll bar has two inclined surfaces at both ends, and the angle of the inclined surfaces matches the horseshoe surface of the web of the T-beam.
5. A horizontal lifeline system for wet joint construction of railway T-beams according to claim 1, characterized in that: The safety rope suspension assembly includes a limiting plate, an insert plate, and a detachable connector. The length of the limiting plate is greater than the width of the front and rear span gaps of the T-beam. The bottom surface of the limiting plate is fixedly connected to the top surface of the insert plate. The insert plate can be matched and inserted between the front and rear span gaps of the T-beam. The lower end is movably connected to the detachable connector, which is a shackle.
6. A horizontal lifeline system for wet joint construction of railway T-beams according to claim 1, characterized in that: The tensioner is a ratchet tensioner.
7. A horizontal lifeline system for wet joint construction of railway T-beams according to claim 1 or 2, characterized in that: The length of the supporting column is not greater than the distance between the top surface of the pier and the bottom surface of the T-beam bridge deck, and not less than the distance between the top surface of the pier and the bottom surface of the upper transverse diaphragm of the T-beam.
8. A horizontal lifeline system for wet joint construction of railway T-beams according to claim 1, characterized in that: The load-bearing rope is made of plastic-coated steel wire rope; the safety rope is made of plastic-coated steel wire rope.
9. A horizontal lifeline system for wet joint construction of railway T-beams according to claim 1 or 8, characterized in that: The two ends of the load-bearing rope are respectively provided with wire rope clamps to form rope loops at both ends.
10. A horizontal lifeline system for wet joint construction of railway T-beams according to claim 1 or 5, characterized in that: The safety rope is equipped with wire rope clamps at both ends to form rope loops at both ends.