A method of installing an f-beam

Abstract

This invention relates to the field of irregular beam installation technology, and particularly to an F-beam installation method, comprising the following steps: S1: hoisting block C to the outermost side of the cap beam, installing wooden blocks on both sides of the first support, lowering the beam so that the bottom plate of block C sits on the first support and the wooden blocks, and installing a first support component on the side of block C facing the T-beam; S2: hoisting block B to the side of block C facing the T-beam, lowering the beam so that the bottom plate of block B sits on the second support, connecting the first support component to the web of block B, the first support component being located between block C and block B, and installing a second support component on the side of block B's web facing the T-beam; S3: hoisting block A to the side of block B facing the T-beam, lowering the beam so that the bottom plate of block A sits on the third support, connecting the second support component to the web of block A, the second support component being located between block B and block A; S4: completing the installation of the F-beam. This F-beam installation method optimizes the construction sequence, realizes "erecting the beam first, then pouring the joint," and improves construction efficiency.

Description

Technical Field

[0001] This invention relates to the field of cross-sea bridge construction technology, and in particular to a method for installing F-beams. Background Technology

[0002] A special type of F-beam (such as...) has recently appeared on the market. Figure 1 , Figure 2 , Figure 3 As shown in the figure, it is used in the construction of cross-sea bridges. Its unique design integrates pedestrian areas (cantilevered), utility tunnel areas and green areas, which not only simplifies the on-site construction process, but also reduces the risk of pollution to the marine environment, achieving a unity of functionality and aesthetics.

[0003] like Figure 2 As shown, in the construction of some cross-sea bridges using F-beams, the middle of the bridge is usually made up of several T-beams, and an F-beam is set on each side of the bridge. The highest point of the web of the F-beam is higher than the top of the T-beam.

[0004] During bridge girder erection, the transverse track of the bridge erecting machine's central support leg needs to be stably positioned on top of the webs of the two F-beams. However, because the F-beams are irregularly shaped and extremely heavy (typically exceeding 400 tons), they need to be prefabricated in sections at the girder fabrication yard and then transported to the construction site for assembly. Existing sectioning methods include... Figure 1 , Figure 3 As shown, the bridge is typically divided into three sections: A, B, and C. Sections A and B are similar to conventional "I"-shaped beams, while section C is an irregularly shaped block with an extra-wide base plate (usually 4500mm to 5000mm). The dispersed F-beam sections (A, B, and C) require a stable foundation for the bridge erecting machine's lateral movement track. If the wet joints between the F-beam sections are poured first, and then the lateral movement track is laid, it will significantly slow down the bridge erection efficiency. If the wet joints between the F-beam sections are not poured, sections A, B, and C will be scattered and uncontrolled. Direct movement of the bridge erecting machine on the web of the F-beams can easily lead to instability and pose a significant safety hazard. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology, where the dispersed F-beam blocks need to support the transverse track of the bridge erecting machine, making it impossible to balance construction efficiency and the operational stability of the bridge erecting machine, and to provide an F-beam installation method.

[0006] In a first aspect, the present invention provides a method for installing an F-beam, comprising the following steps: S1: Hoist block C to the outermost side of the cap beam, install wooden blocks on both sides of the first support, lower the beam so that the bottom plate of block C sits on the first support and the wooden blocks, and install the first support component on the side of the web of block C facing the T beam. S2: Hoist block B to the side of block C facing the T-beam, lower the beam so that the bottom plate of block B sits on the second support, connect the first support component to the web of block B, the first support component is located between block C and block B, and install the second support component on the side of the web of block B facing the T-beam. S3: Hoist block A to the side of block B facing the T-beam, lower the beam so that the bottom plate of block A sits on the third support, connect the second support component to the web of block A, and the second support component is located between block B and block A; S4: Complete the installation of beam F.

[0007] The F-beam installation method provided by this invention optimizes the construction sequence. By connecting the webs of three independent F-beam blocks (C, B, and A) through a first and second support component, the previously scattered and uncontrolled F-beam blocks are formed into a relatively stable whole, even before the wet joint is poured. When the lateral track of the bridge erecting machine's legs is positioned and rests on top of the F-beam web, the pre-connected F-beam blocks will not easily become unstable or displaced, thus greatly improving the stability and safety of the bridge erecting machine during operation. This effectively avoids safety hazards such as rollover caused by scattered beam blocks, achieving "beam erection first, joint pouring later." During construction, there is no need to wait for the wet joint to solidify; the wet joint of the previous span is poured while the bridge erecting machine is erecting the next span, without affecting the construction rhythm. This significantly shortens the overall bridge construction period and improves construction efficiency.

[0008] Preferably, S1 includes the following steps: S11: Control the bridge erecting machine so that the front outrigger of the bridge erecting machine is positioned on the top of the next span cap beam, the transverse track of the middle outrigger of the bridge erecting machine is placed on the top of the web of the already erected F beam, and the rear outrigger of the bridge erecting machine is positioned on the top of the already erected T beam. S12: After the bridge erecting machine is in place, the beam transport vehicle transports block C on top of the T-beam; S13: The front and rear crane trolleys lift block C and transport the beam through the hole; S14: The front and rear crane trolleys are moved laterally to the outermost side of the cap beam, so that block C is located above the beam to be erected; S15: Install wooden pads on both sides of the first support; S16: Control the front and rear crane trolleys to lower the beam so that the bottom plate of block C sits on the first support and the wooden pad; S17: Install the first support component on the side of the web of block C facing the T-beam.

[0009] Since the highest point of the web of the completed F beam is higher than the top of the T beam, the top of the T beam is used as a beam transport channel to facilitate beam transport. Block C is the outermost segment of the F beam and is an irregularly shaped block. Accurately installing Block C first provides a clear positioning benchmark for the subsequent installation of Blocks B and A, which facilitates the installation of the two subsequent blocks. By setting wooden blocks on both sides of the first support, temporary support points can be provided to avoid local stress concentration or swaying of the beam block on the support, ensuring the stable and safe placement of the overweight Block C.

[0010] Preferably, in S14, when there is an erected beam below block C, the front and rear crane trolleys are first controlled to lower block C to 100-200mm above the erected beam, and then the front and rear crane trolleys are moved laterally to the outermost side of the cap beam so that block C is located above the position of the beam to be erected.

[0011] Due to the enormous weight of the C-block (typically 150-180 tons), it is preferable to use a "lower first, move later" approach when installing the C-block, lowering it to a position only 100 mm above the already erected beam. The 200mm positioning significantly lowers the center of gravity of the entire hoisting system, effectively preventing block C from swaying due to wind forces in the marine environment when it moves laterally to the outermost part of the cap beam, thus ensuring the stability of the lateral movement. (100mm distance from the top of the already erected beam) 200mm is a relatively safe height, which can not only meet the requirements for stable lateral movement, but also effectively prevent block C from colliding or scraping with the beam structure below when there are slight undulations or swaying.

[0012] Preferably, in S16, the front and rear crane trolleys are first controlled to lower block C to a distance of 100-200mm from the top surface of the first support and the pad. After fine-tuning the position of block C above the designed installation position, the beam is lowered so that the bottom plate of block C sits on the first support and the pad.

[0013] The position of block C is finely adjusted at a distance of 100-200mm from the bottom plate of block C and the top surface of the first support and the pad. This ensures that the beam sits precisely in the center of the support when it finally makes contact with the support, thus ensuring the success rate of beam placement.

[0014] Preferably, the first support component includes a first crossbeam and a second crossbeam, and a first X-bracing is fixedly connected between the first crossbeam and the second crossbeam; The second support component includes a third crossbeam and a fourth crossbeam, and a second X-bracing is fixedly connected between the third crossbeam and the fourth crossbeam; One end of the first crossbeam and one end of the second crossbeam are both bolted to the web plate of block C, and the other end of the first crossbeam and the other end of the second crossbeam are both bolted to the web plate of block B. One end of the third crossbeam and one end of the fourth crossbeam are bolted to the web plate of block B, and the other end of the third crossbeam and the other end of the fourth crossbeam are bolted to the web plate of block A.

[0015] By setting both the first and second support components as scissor braces, the adjacent C, B, and A blocks can be connected into a rigid whole and provide strong temporary lateral support. This effectively resists the huge lateral thrust and vibration generated when the outriggers of the bridge erecting machine move laterally, preventing horizontal displacement or overturning of the F-beam blocks and greatly enhancing the stability and safety of the bridge erecting machine operation.

[0016] Preferably, in S3, after the second support component is connected to the web of block A, a vertical support is also installed. The vertical support is located on the side of block C away from the T beam. The bottom of the vertical support is bolted to the cap beam, and the top of the vertical support is used to support the transverse track.

[0017] When the bridge erecting machine installs block C, it needs to move laterally to the outermost edge of the cap beam, which will generate a huge lateral thrust and overturning moment. The vertical support is set at the outermost edge of the cap beam, providing additional support at both ends of the lateral track, ensuring the stability of the bridge erecting machine's lateral movement, and preparing the bridge erecting machine for erecting the next span of beam F.

[0018] Preferably, the vertical support includes a first column and a second column, which are connected by a tie beam. A support beam is installed on the top of the first column and the second column, and the bottom of the first column and the second column are bolted to the cover beam. The support beam is connected to the web of block C by a horizontal brace, and a diagonal brace is installed between the horizontal brace and the support beam. The support beam is used to support the transverse track.

[0019] With this structural design, the first and second columns can be installed in the hollowed-out portion of the cantilevered end of block C. The double columns, connected by tie beams, form a stable portal frame structure with strong resistance to torsion, bending, and shear. This ensures that the vertical supports will not become unstable or deformed when subjected to the enormous load from the outriggers of the bridge erecting machine, providing stable support for the transverse track. The horizontal bracing connects the vertical supports to the web of block C, effectively constraining the outward displacement of block C and further enhancing the stability of the vertical supports themselves. The addition of diagonal bracing creates a triangular structure from the horizontal bracing, support beams, and diagonal bracing, ensuring the stability of the horizontal bracing connection.

[0020] Preferably, in S3, after the second support component is connected to the web of block A, a temporary support is also installed. The temporary support is installed on the top surface of the T-beam and is used to support the transverse track.

[0021] Since the highest point of the web of the completed F-beam is higher than the top of the T-beam, the installation of temporary supports can prevent the transverse track from being suspended between the transverse track and the T-beam. The temporary supports at the top of the T-beam provide effective vertical support for the track, so that part of the load of the transverse track is distributed to the T-beam, ensuring that the outriggers of the bridge erecting machine move more smoothly and safely on the transverse track.

[0022] Preferably, in S3, after the second support component is connected to the web of block A, a first temporary support, a second temporary support, and a third temporary support are also installed. The first temporary support is installed on the top of the web of block C, the second temporary support is installed on the top of the web of block B, and the third temporary support is installed on the top of the web of block A. The first temporary support, the second temporary support, and the third temporary support are all used to support the transverse track.

[0023] The addition of temporary supports eliminated the elevation difference between the top surfaces of the three web plates A, B, and C, ensuring the overall levelness of the transverse track.

[0024] Preferably, the first temporary support is connected to the tongue and groove joint of the web plate of block C, and the second temporary support is connected to the tongue and groove joint of the web plate of block B.

[0025] Since the area between blocks C and B is a utility tunnel, the top of the web of block C and the top of the web of block B are prefabricated with tongue and groove joints for the subsequent installation of the utility tunnel cover plates. The design of the first and second temporary supports also uses tongue and groove joints with their corresponding webs. This utilizes the permanent structure reserved for the utility tunnel cover plates on the web of beam F, allowing for stable installation of the temporary supports without modifying beam F. At the same time, the tongue and groove joints also improve the anti-slip capability of the temporary supports, ensuring the stability of the support.

[0026] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention provides an F-beam installation method that optimizes the construction sequence. By connecting the webs of three independent F-beam blocks (C, B, and A) using a first and second support component, the previously scattered and uncontrolled F-beam blocks are integrated into a relatively stable whole, even before the wet joint is poured. When the lateral track of the bridge erecting machine's legs is positioned and rests on top of the F-beam web, the pre-connected F-beam blocks will not easily become unstable or displaced, thus greatly improving the stability and safety of the bridge erecting machine during operation. This effectively avoids safety hazards such as rollover caused by scattered beam blocks, achieving "beam erection first, joint pouring later." During construction, there is no need to wait for the wet joint to solidify; the wet joint of the previous span is poured while the bridge erecting machine is erecting the next span, without affecting the construction rhythm. This significantly shortens the overall bridge construction period and improves construction efficiency. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the segmentation of beam F; Figure 2 This is a schematic diagram of the cross-section of a sea-crossing bridge using F-beams. Figure 3 This is a top view of beam F; Figure 4 This is a schematic diagram showing the completed installation status of beam F. Figure 5 for Figure 4 Enlarged diagram of section A in the middle; Figure 6 for Figure 4 Enlarged schematic diagram of section B in the middle; Figure 7 for Figure 4 Enlarged diagram of section C; Figure 8 This is a schematic diagram of the first supporting component structure; Figure 9 This is a schematic diagram of the second support component structure; Figure 10 This is the elevation view of the vertical support; Figure 11 This is a side view of the vertical support; Figure 12 This is a top view of the vertical support; Figure 13 This is a schematic diagram showing the lifting beam status of the front and rear lifting trolleys; Figure 14 Elevation views of the lifting beams of the front and rear lifting trolleys.

[0028] Marked in the image: 11-First support, 12-Second support, 13-Third support, 2-Wooden pad, 31-First support component, 311-First crossbeam, 312-Second crossbeam, 313-First X-brace, 32-Second support component, 321-Third crossbeam, 322-Fourth crossbeam, 323-Second X-brace, 4-Vertical support, 41-First column, 42-Second column, 43-Tie beam, 44-Support beam 45-Horizontal brace, 46-Diagonal brace, 5-Temporary support, 61-First temporary support, 62-Second temporary support, 63-Third temporary support, 100-Block C, 200-Block B, 300-Block A, 400-T-beam, 500-Cap beam, 601-Front outrigger, 602-Middle outrigger, 6021-Transverse track, 603-Rear outrigger, 604-Front crane trolley, 605-Rear crane trolley. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to specific embodiments. However, this should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0030] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of the present invention is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the present invention or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a particular device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on the present invention.

[0031] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but that it can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0032] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0033] Furthermore, in the description of the embodiments of the present invention, "several", "more than", and "a number of" represent at least two. The number can be any number, such as 2, 3, 4, 5, 6, 7, 8, or 9, and can even exceed nine.

[0034] Furthermore, in the description of the technical solution of this invention, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "provided with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0035] Example 1 This embodiment provides a method for installing an F-beam, such as... Figure 4 The installation of beam F is shown in its completed state (only the right half of the bridge is shown; the left half is similar to or a mirror image of the right half), including the following steps: S1: Hoist block C100 to the outermost side of cap beam 500, install wooden blocks 2 on the left and right sides of the first support 11, lower the beam so that the bottom plate of block C100 sits on the first support 11 and wooden blocks 2, and install the first support component 31 on the side of the web of block C100 facing T beam 400.

[0036] Specifically, S1 includes the following steps: S11: Control the bridge erecting machine, such as Figure 13 As shown, the front support leg 601 of the bridge erecting machine is positioned on top of the next span cap beam 500, the transverse track 6021 of the middle support leg 602 of the bridge erecting machine is placed on top of the web of the already erected F beam, and the rear support leg 603 of the bridge erecting machine is positioned on top of the already erected T beam 400. S12: After the bridge erecting machine is in place, the beam transport vehicle transports block C100 on top of T-beam 400; S13: The front crane trolley 604 and the rear crane trolley 605 lift block C 100 and transport the beam through the hole; S14: As Figure 14 As shown, the front crane trolley 604 and the rear crane trolley 605 are moved laterally to the outermost side of the cap beam 500, so that block C 100 is located above the beam to be erected. When there is an erected beam below block C100, first control the front crane trolley 604 and the rear crane trolley 605 to lower block C100 to 100-200mm above the erected beam, preferably 100mm, 150mm, or 200mm. Then, the front crane trolley 604 and the rear crane trolley 605 move laterally to the outermost side of the cap beam 500, so that block C100 is located above the beam to be erected.

[0037] Due to the enormous weight of block C100 (typically 150 to 180 tons), the preferred method for installing block C100 is to lower it first and then move it, lowering it until it is only slightly higher than the already erected beam 100. The 200mm positioning significantly lowers the center of gravity of the entire lifting system, effectively preventing block C100 from swaying due to wind forces in the marine environment when it moves laterally to the outermost edge of the cap beam 500, thus ensuring the stability of the lateral movement. (100mm distance from the top of the already erected beam) 200mm is a relatively safe height, which can not only meet the requirements for stable lateral movement, but also effectively prevent block C100 from colliding or scraping with the beam structure below when there are slight undulations or swaying.

[0038] S15: Install wooden blocks 2 on the left and right sides of the first support 11; S16: Control the front crane trolley 604 and the rear crane trolley 605 to lower the beam so that the bottom plate of block C 100 sits on the first support 11 and the pad 2; Specifically, the front lifting trolley 604 and the rear lifting trolley 605 can be controlled to lower block C 100 to a distance of 100-200mm from the top surface of the first support 11 and the wooden block 2, preferably 100mm, 150mm, or 200mm. After fine-tuning the position of block C 100 above the designed installation position, the beam is lowered so that the bottom plate of block C 100 sits on the first support 11 and the wooden block 2. Fine-tuning can be done at the centimeter level. By fine-tuning the position of block C 100 at a distance of 100-200mm from the bottom plate of block C 100 to the top surface of the first support 11 and the wooden block 2, it is ensured that the beam is precisely centered on the support when finally contacting it, thus ensuring a high success rate for beam lowering.

[0039] S17: Install a first support member 31 on the side of the web of block C 100 facing T beam 400. Temporary support can be provided on the side of the first support member 31 away from the web of block C 100 using sleepers or the like.

[0040] S2: Hoist block B 200 to the side of block C 100 facing T-beam 400, lower the beam so that the bottom plate of block B 200 sits on the second support 12, connect the first support member 31 to the web of block B 200, the first support member 31 is located between block C 100 and block B 200, install the second support member 32 on the side of the web of block B 200 facing T-beam 400, and use sleepers or other materials for temporary support on the side of the second support member 32 away from the web of block B 200. Furthermore, all the ring-shaped reinforcing bars at the wet joint between block B 200 and block C 100 can be tied and temporary transverse connecting reinforcing bars can be welded.

[0041] S3: Hoist block A 300 to the side of block B 200 facing T-beam 400, lower the beam so that the bottom plate of block A 300 sits on the third support 13, and connect the second support member 32 to the web of block A 300. The second support member 32 is located between block B 200 and block A 300. Furthermore, all the ring-shaped reinforcing bars at the wet joint between block A 300 and block B 200 can be tied and temporary transverse connecting reinforcing bars can be welded.

[0042] Furthermore, such as Figure 4 As shown, after the second support component 32 is connected to the web of block A 300, a temporary support 5 can be installed. The temporary support 5 is installed on the top surface of the T beam 400 and is used to support the transverse track 6021. Specifically, the temporary support 5 can be a sleeper. Figure 2 , Figure 4As shown, since the highest point of the web of the completed F beam is higher than the top of the T beam 400, the installation of temporary support 5 can prevent the transverse track 6021 from being suspended between the transverse track 6021 and the T beam 400. The temporary support 5 provides effective vertical support for the track at the top of the T beam 400, so that part of the load of the transverse track 6021 is distributed to the T beam 400, ensuring that the outrigger 602 of the bridge erecting machine moves more smoothly and safely on the transverse track 6021.

[0043] Furthermore, such as Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown, after the second support component 32 is connected to the web of block A 300, a first temporary support 61, a second temporary support 62, and a third temporary support 63 can be installed. The first temporary support 61 is installed on the top of the web of block C 100, the second temporary support 62 is installed on the top of the web of block B 200, and the third temporary support 63 is installed on the top of the web of block A 300. All three temporary supports 61, 62, and 63 are used to support the transverse track 6021. The addition of the temporary supports eliminates the elevation difference between the top surfaces of the webs A, B, and C, ensuring the overall levelness of the transverse track 6021.

[0044] Furthermore, such as Figure 5 As shown, the first temporary support 61 is connected to the web of block C 100 via a tongue and groove joint. Figure 6 As shown, the second temporary support 62 is connected to the web of block B 200 via a tongue and groove joint.

[0045] like Figure 1 , Figure 2 As shown, since the area between block C100 and block B200 is a utility tunnel zone, the top of the web of block C100 and the top of the web of block B200 are prefabricated with tongue and groove structures for the subsequent installation of the utility tunnel cover plate. The first temporary support 61 and the second temporary support 62 are also designed with tongue and groove connections to their corresponding webs. This utilizes the permanent structure reserved for the utility tunnel cover plate on the web of beam F, achieving stable installation of the temporary supports without modifying beam F. Simultaneously, the tongue and groove connection enhances the anti-slip capability of the temporary supports, ensuring support stability. In this embodiment, the temporary supports can be steel plates, sleepers, etc.

[0046] Furthermore, such as Figure 4 , Figure 8 , Figure 9 As shown, in this embodiment, the first support component 31 includes a first crossbeam 311 and a second crossbeam 312, and a first X-bracing 313 is fixedly connected between the first crossbeam 311 and the second crossbeam 312; the second support component 32 includes a third crossbeam 321 and a fourth crossbeam 322, and a second X-bracing 323 is fixedly connected between the third crossbeam 321 and the fourth crossbeam 322.

[0047] Specifically, the right ends of the first crossbeam 311 and the second crossbeam 312 are both bolted to the web plate of block C 100, and the left ends of the first crossbeam 311 and the second crossbeam 312 are both bolted to the web plate of block B 200; the right ends of the third crossbeam 321 and the fourth crossbeam 322 are both bolted to the web plate of block B 200, and the left ends of the third crossbeam 321 and the fourth crossbeam 322 are both bolted to the web plate of block A 300.

[0048] The first support component 31 and the second support component 32 are both designed as scissor braces, which can connect the three adjacent blocks C, B and A into a rigid whole and provide strong temporary lateral support. This effectively resists the huge lateral thrust and vibration generated when the outrigger 602 of the bridge erecting machine moves laterally, prevents the F beam blocks from undergoing horizontal displacement or overturning, and greatly enhances the stability and safety of the bridge erecting machine operation.

[0049] S4: Complete the installation of beam F.

[0050] The F-beam installation method provided in this embodiment optimizes the construction sequence. By connecting the webs of the three independent F-beam blocks—C block 100, B block 200, and A block 300—through the first support component 31 and the second support component 32, the previously scattered and uncontrolled F-beam blocks are formed into a relatively stable whole, even before the wet joint is poured. When the transverse track 6021 of the bridge erecting machine's support leg 602 is deployed and sits on top of the F-beam web, the pre-connected F-beam blocks will not easily become unstable or displaced, thus greatly improving the stability and safety of the bridge erecting machine during operation. This effectively avoids safety hazards such as rollover caused by scattered beam blocks, achieving "beam erection first, joint pouring later." During construction, there is no need to wait for the wet joint to solidify; the wet joint of the previous span is poured while the bridge erecting machine is erecting the next span, without affecting the construction rhythm. This significantly shortens the overall bridge construction period and improves construction efficiency.

[0051] Example 2 like Figure 4 , Figure 14 , Figures 10-12As shown, when the bridge erecting machine installs block C 100, it needs to move laterally to the outermost side of the cap beam 500, which will generate a huge lateral thrust and overturning moment. To ensure that the lateral track 6021 can stably support the middle support leg 602 as the bridge erecting machine moves from the span to the next span, after the second support component 32 is connected to the web of block A 300 in step S3, a vertical support 4 is also installed. The vertical support 4 is located on the side of block C 100 away from the T beam 400. The bottom of the vertical support 4 is bolted to the cap beam 500, and the top of the vertical support 4 is used to support the lateral track 6021. The vertical support 4 is set on the outermost side of the cap beam 500, providing additional support for both ends of the lateral track 6021, ensuring the stability of the bridge erecting machine's lateral movement, and preparing for the bridge erecting machine to erect the next span F beam.

[0052] Furthermore, the vertical support 4 includes a first column 41 and a second column 42, which are connected by a tie beam 43. A support beam 44 is installed on the top of the first column 41 and the second column 42, and the bottom of the first column 41 and the second column 42 are bolted to the cover beam 500. The support beam 44 is connected to the web of block C 100 by a horizontal brace 45. A diagonal brace 46 is installed between the horizontal brace 45 and the support beam 44. The support beam 44 is used to support the transverse track 6021.

[0053] With this structural arrangement, the first column 41 and the second column 42 can be installed respectively at... Figure 3 The hollowed-out portion at the cantilevered end of block C100 shown (the hollowing out is to reduce the weight of block C) is as follows: Figure 11 The first column 41 and the second column 42 shown span the reinforcing beam of block C 100. The use of double columns connected by tie beam 43 forms a stable portal frame structure with strong resistance to torsion, bending, and shear. This ensures that the vertical support 4 will not become unstable or deformed when subjected to the huge load from the middle leg 602 of the bridge erecting machine, providing stable support for the transverse track 6021. The horizontal bracing 45 connects the vertical support 4 to the web of block C 100, effectively constraining the outward displacement of block C 100 and further enhancing the stability of the vertical support 4 itself. Figure 12 As shown, the addition of the diagonal brace 46 makes the horizontal brace 45, the supporting beam 44, and the diagonal brace 46 form a triangular structure, ensuring the stability of the horizontal brace 45 connection.

[0054] 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, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for installing an F-beam, characterized in that, Includes the following steps: S1: Hoist block C (100) to the outermost side of cap beam (500), install pads (2) on the left and right sides of the first support (11), lower the beam so that the bottom plate of block C (100) sits on the first support (11) and pads (2), and install the first support component (31) on the side of the web of block C (100) facing T beam (400). S2: Hoist block B (200) to the side of block C (100) facing T-beam (400), lower the beam so that the bottom plate of block B (200) sits on the second support (12), connect the first support member (31) to the web of block B (200), the first support member (31) is located between block C (100) and block B (200), and install the second support member (32) on the side of the web of block B (200) facing T-beam (400). S3: Hoist block A (300) to the side of block B (200) facing the T beam (400), lower the beam so that the bottom plate of block A (300) sits on the third support (13), connect the second support member (32) to the web of block A (300), and the second support member (32) is located between block B (200) and block A (300); After the second support component (32) is connected to the web of block A (300), a first temporary support (61), a second temporary support (62) and a third temporary support (63) are installed. The first temporary support (61) is installed on the top of the web of block C (100), the second temporary support (62) is installed on the top of the web of block B (200), and the third temporary support (63) is installed on the top of the web of block A (300). The first temporary support (61), the second temporary support (62) and the third temporary support (63) are all used to support the transverse track (6021). The lateral track (6021) is used for the lateral movement of the outriggers (602) in the bridge erecting machine; The first temporary support (61) is connected to the web tongue and groove of block C (100), and the second temporary support (62) is connected to the web tongue and groove of block B (200). S4: Complete the installation of beam F.

2. The method for installing an F-beam according to claim 1, characterized in that, S1 includes the following steps: S11: Control the bridge erecting machine so that the front outrigger (601) of the bridge erecting machine is positioned on the top of the next span cap beam (500), the transverse track (6021) of the middle outrigger (602) of the bridge erecting machine is placed on the top of the web of the erected F beam, and the rear outrigger (603) of the bridge erecting machine is positioned on the top of the erected T beam (400). S12: After the bridge erecting machine is in place, the beam transport vehicle transports block C (100) on top of the T beam (400). S13: The front crane trolley (604) and the rear crane trolley (605) lift block C (100) and transport the beam through the hole; S14: The front crane trolley (604) and the rear crane trolley (605) are moved laterally to the outermost side of the cap beam (500), so that block C (100) is located above the beam to be erected; S15: Install wooden blocks (2) on the left and right sides of the first support (11); S16: Control the front crane trolley (604) and the rear crane trolley (605) to lower the beam so that the bottom plate of block C (100) sits on the first support (11) and the pad (2); S17: Install the first support member (31) on the side of the web of block C (100) facing the T beam (400).

3. The method for installing an F-beam according to claim 2, characterized in that, In S14, when there is an erected beam below block C (100), first control the front crane trolley (604) and the rear crane trolley (605) to lower block C (100) to 100-200mm above the erected beam. Then, the front crane trolley (604) and the rear crane trolley (605) move laterally to the outermost side of the cap beam (500) so that block C (100) is above the position of the beam to be erected.

4. The method for installing an F-beam according to claim 2, characterized in that, In S16, first control the front crane trolley (604) and the rear crane trolley (605) to lower the C block (100) to a distance of 100-200mm from the top surface of the first support (11) and the pad (2). After finely adjusting the position of the C block (100) to above the designed installation position, lower the beam so that the bottom plate of the C block (100) sits on the first support (11) and the pad (2).

5. The method for installing an F-beam according to claim 1, characterized in that, The first support component (31) includes a first crossbeam (311) and a second crossbeam (312), and a first X-bracing (313) is fixedly connected between the first crossbeam (311) and the second crossbeam (312). The second support component (32) includes a third crossbeam (321) and a fourth crossbeam (322), and a second X-bracing (323) is fixedly connected between the third crossbeam (321) and the fourth crossbeam (322). One end of the first crossbeam (311) and one end of the second crossbeam (312) are both bolted to the web plate of block C (100), and the other end of the first crossbeam (311) and the other end of the second crossbeam (312) are both bolted to the web plate of block B (200). One end of the third crossbeam (321) and one end of the fourth crossbeam (322) are bolted to the web plate of block B (200), and the other end of the third crossbeam (321) and the other end of the fourth crossbeam (322) are bolted to the web plate of block A (300).

6. The method for installing an F-beam according to claim 1, characterized in that, In S3, after the second support component (32) is connected to the web of block A (300), a vertical support (4) is also installed. The vertical support (4) is located on the side of block C (100) away from the T beam (400). The bottom of the vertical support (4) is bolted to the cap beam (500), and the top of the vertical support (4) is used to support the transverse track (6021).

7. The method for installing an F-beam according to claim 6, characterized in that, The vertical support (4) includes a first column (41) and a second column (42). The first column (41) and the second column (42) are connected by a tie beam (43). A support beam (44) is installed on the top of the first column (41) and the second column (42). The bottom of the first column (41) and the second column (42) are bolted to the cover beam (500). The support beam (44) is connected to the web of block C (100) by a horizontal brace (45). A diagonal brace (46) is installed between the horizontal brace (45) and the support beam (44). The support beam (44) is used to support the transverse track (6021).

8. The method for installing an F-beam according to claim 1, characterized in that, In S3, after the second support component (32) is connected to the web of block A (300), a temporary support (5) is installed. The temporary support (5) is installed on the top surface of the T beam (400) and is used to support the transverse track (6021).

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