A three-in-one reinforcement structure and method for tracked cranes to reinforce basement roof slabs

Abstract

This invention provides a three-in-one reinforcement structure and method for basement roof slabs using crawler cranes, relating to the field of building construction reinforcement technology. The structure includes a basement floor slab, a basement roof slab, a precast bearing plate, a first supporting beam, and a central connecting base. The precast bearing plate is positioned above the basement roof slab, with a damping rubber buffer pad at its bottom. The first and second supporting beams are positioned below the basement roof slab, forming a central reinforcement support through support seats, snap-fit ​​seats, connecting angle steel, and beam bottom reinforcing steel. The central connecting base is positioned above the basement floor slab, with connecting columns connected to it via bolts. Hydraulic jacks push upwards towards the beam bottom area via connecting saddles. This invention creates a continuous force path with upper pressure dispersion, central beam reinforcement, and lower hydraulic jacking, reducing the risk of localized cracking, deformation, and hard contact damage to the basement roof slab during crawler crane operations.

Description

Technical Field

[0001] This invention relates to the field of building construction reinforcement technology, and in particular to a three-in-one reinforcement structure and method for basement roof slabs using a crawler crane. Background Technology

[0002] Tracked cranes are large lifting equipment commonly used in the hoisting of large steel structures, stadium construction, construction of super high-rise buildings, and complex building installation projects. Due to their heavy weight, large track ground contact area, and strong lifting capacity, tracked cranes often need to travel, turn, or temporarily stand on the completed basement roof slab when the construction site is limited by narrow space, restricted component stacking area, lifting radius requirements, and temporary road layout conditions.

[0003] In the original structural design, the basement roof slab typically bears the uniformly distributed load during the building's service life. However, crawler cranes apply concentrated loads, dynamic loads, and localized eccentric loads to the basement roof slab through their tracks during travel and hoisting. Especially when the crawler crane starts, brakes, turns, or is hoisting components with eccentric loads, the pressure in the track's action area changes significantly. If there is no effective pressure-distributing structure above the basement roof slab, this can easily lead to indentations on the roof surface, localized concrete damage, increased slab span deflection, or cracks at beam-slab connections.

[0004] In current construction, to allow crawler cranes to temporarily pass over basement roof slabs, it is common practice to spread the load by laying steel plates, roadbed boxes, or concrete slabs on top of the roof slab. Some projects also erect steel pipe supports, structural steel supports, or temporary backfill columns under the roof slab. However, these reinforcement methods are mostly set up independently, and there is no clear vertical correspondence between the upper slab and the lower backfill support. After the crawler crane load is transferred to the basement roof slab through the slab, it may not fall within the range of the lower support, which may still cause localized stress concentration on the roof slab. Summary of the Invention

[0005] The purpose of this invention is to provide a three-in-one reinforcement structure and method for crawler cranes on basement roof slabs, which can solve the problems of the disconnect between the upper slab, the middle beam reinforcement and the lower backing structure when crawler cranes travel or lift on basement roof slabs, resulting in unclear load transfer paths, local stress concentration on the roof slab, easy slippage of the slab and unstable support backing.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a three-in-one reinforcement structure for a tracked crane to reinforce a basement roof slab, comprising a basement floor slab and a basement roof slab, and further comprising: Precast bearing slabs are connected to the top of the basement roof slab; Damping rubber buffer pads are connected to the bottom of the precast pressure plate; Track limiting ribs are connected to the upper surface of the precast pressure plate; The first supporting beam is connected to the bottom of the basement ceiling slab; The second support beam is connected to one side of the first support beam; The central connecting base is attached to the top of the basement floor slab; The hydraulic jack is connected to the top of the central connecting base.

[0007] In one preferred embodiment, a locking connecting strip is provided on the outer side of the end of the precast bearing plate, and a tongue and groove connecting groove is provided on the inner side of the end of the precast bearing plate. Adjacent precast bearing plates are spliced ​​through the tongue and groove connecting groove and connected by the locking connecting strip for limiting.

[0008] In one preferred embodiment, a connecting groove is provided on one side of the precast bearing plate, and a connecting rib is fixedly connected to one side of the damping rubber buffer pad. The connecting rib can be embedded in the connecting groove, so that the damping rubber buffer pad and the precast bearing plate form an interlocking connection.

[0009] As a preferred embodiment, a friction pad is provided on the side of the damping rubber buffer pad away from the precast bearing slab. The friction pad is used to increase the frictional resistance between the damping rubber buffer pad and the basement roof slab.

[0010] In a preferred embodiment, a support base is fixedly connected to the outer side of the end of the first support beam, a snap-fit ​​seat is fixedly connected to one side of the first support beam, and a snap-fit ​​groove is provided on the inner side of the end of the second support beam, and the snap-fit ​​seat engages with the second support beam through the snap-fit ​​groove.

[0011] In one preferred embodiment, a connecting angle steel is fixedly connected to the outer side of the snap-fit ​​seat, and the bottom reinforcing steel is connected to one side of the second supporting beam and fits against the bottom area of ​​the basement roof slab to expand the support range of the middle reinforcing component for the bottom area of ​​the beam.

[0012] In one preferred embodiment, a connecting column is slidably connected to the inner side of the central connecting base, and connecting bolts are inserted between the central connecting base and the connecting column. A hydraulic jack is fixedly connected above the connecting column, and a connecting saddle is provided on the top of the hydraulic jack, with the connecting saddle corresponding to the bottom area of ​​the beam of the basement roof slab.

[0013] This invention also provides a three-in-one reinforcement method for a crawler crane on a basement roof slab, including the arrangement of upper pressure-bearing components, splicing and limiting of prefabricated pressure-bearing plates, limiting and anti-slip buffering of the crawler tracks, installation of middle reinforcement components, crossbeam clamping to form reinforcement support, installation of bottom reinforcement steel, installation of lower jacking components, and hydraulic jacking to form a three-in-one stress state. Through the above steps, the load of the crawler crane is sequentially transferred to the basement floor slab through the prefabricated pressure-bearing plates, damping rubber buffer pads, basement roof slab, middle reinforcement components, and lower jacking components.

[0014] Compared with the prior art, the advantages and positive effects of the present invention are as follows: This invention, through the coordinated operation of prefabricated pressure plates, damping rubber buffer pads, track limiting ribs, locking connecting strips, tongue and groove connecting slots, connecting grooves, connecting ribs, friction pads, first support beams, second support beams, connecting angle steel, beam bottom reinforcing steel, central connecting base, connecting columns, hydraulic jacks, and connecting saddles, can form a track load dispersion structure above the basement roof slab, a beam-slab reinforcement structure below the basement roof slab, and a hydraulic back-pull structure between the basement floor slab and the basement roof slab. The prefabricated pressure plates expand the load-bearing area of ​​the track crane, the damping rubber buffer pads reduce hard contact impacts, the track limiting ribs restrict track deviation, the first and second support beams, together with the beam bottom reinforcing steel, improve the lower support capacity of the beam-slab, and the hydraulic jacks provide adjustable back-pull force through the connecting saddle, thus forming a three-in-one reinforcement system of upper pressure dispersion, middle beam-slab reinforcement, and lower hydraulic back-pull. Attached Figure Description

[0015] Figure 1 This is a front view schematic diagram of a three-in-one reinforcement structure and method for a tracked crane to reinforce the roof of a basement, provided by the present invention. Figure 2 This is a schematic diagram of the support base and the snap-fit ​​base in a three-in-one reinforcement structure and method for a crawler crane to the roof of a basement provided by the present invention. Figure 3 A schematic diagram of the snap-fit ​​seat and the second support beam in the three-in-one reinforcement structure and method for a crawler crane to the roof of a basement provided by the present invention; Figure 4 This is a schematic diagram of the connecting columns and connecting bolts in a three-in-one reinforcement structure and method for a crawler crane to the roof of a basement provided by the present invention; Figure 5 This is a schematic diagram of the damping rubber buffer pad and track limiting rib in a three-in-one reinforcement structure and method for tracked cranes to lift basement roof slabs provided by the present invention.

[0016] Legend: 1. Basement floor slab; 101. Basement roof slab; 2. Precast bearing plate; 201. Damping rubber buffer pad; 202. Track limiting rib; 203. Locking connecting strip; 204. Tongue and groove connection groove; 205. Connection groove; 206. Connection rib; 207. Friction pad; 3. First support beam; 301. Support seat; 302. Clip seat; 303. Second support beam; 304. Clip groove; 305. Connection angle steel; 306. Beam bottom reinforcing steel; 4. Middle connection base; 401. Connection column; 402. Connection bolt; 403. Hydraulic jack; 404. Connection saddle. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1

[0018] Please see Figure 1 and Figure 5 This embodiment provides an upper pressure-bearing component in a three-in-one reinforcement structure and method for mounting a crawler crane on a basement roof slab. The specific concept is as follows: A three-in-one reinforcement structure and method for a crawler crane to a basement roof slab includes a basement floor slab 1 and a basement roof slab 101. The three-in-one reinforcement structure and method for a crawler crane to a basement roof slab also includes an upper pressure-bearing component.

[0019] The upper pressure-bearing assembly is located above the basement roof slab 101. This assembly includes a precast pressure-bearing plate 2, a damping rubber buffer pad 201, a track limiting rib 202, a locking connecting strip 203, a tongue-and-groove connecting groove 204, a connecting groove 205, a connecting rib 206, and a friction pad 207. The precast pressure-bearing plate 2 directly bears the concentrated load applied by the crawler crane tracks and diffuses the concentrated load over a larger area of ​​the basement roof slab 101, preventing the track load from directly concentrating on a localized area of ​​the basement roof slab 101.

[0020] As an example, in this embodiment, the precast bearing plate 2 is continuously laid along the travel direction of the crawler crane track. A damping rubber buffer pad 201 is connected to the bottom of the precast bearing plate 2, and the damping rubber buffer pad 201 is located between the precast bearing plate 2 and the basement roof slab 101. The damping rubber buffer pad 201 enables a flexible contact between the precast bearing plate 2 and the basement roof slab 101. During the crawler crane's travel, turning, starting, or braking, the impact and vibration generated by the crawler crane are first transmitted to the precast bearing plate 2, and then buffered by the damping rubber buffer pad 201, thereby reducing the hard compression and friction damage of the precast bearing plate 2 on the surface of the basement roof slab 101.

[0021] Meanwhile, a track-limiting rib 202 is fixedly connected to the upper surface of the precast bearing plate 2, extending along the traveling direction of the crawler crane. The track-limiting rib 202 forms a limiting structure on both sides of the track on the precast bearing plate 2, preventing the crawler crane track from easily shifting to the side of the precast bearing plate 2 during travel, thereby reducing the risk of localized stress concentration on the basement roof slab 101 after the crawler crane track deviates from the predetermined stress area. The track-limiting rib 202 can be configured as a strip-shaped protrusion, its height determined by its ability to block or guide the side of the track.

[0022] In addition, a locking connecting strip 203 is provided on the outer side of the end of the precast bearing plate 2, and a tongue and groove connecting groove 204 is provided on the inner side of the end of the precast bearing plate 2. When two adjacent precast bearing plates 2 are spliced, the tongue and groove connecting groove 204 can make the ends of the adjacent precast bearing plates 2 form a mutually interlocking positioning relationship, and the locking connecting strip 203 can limit the adjacent precast bearing plates 2 on the outside, so that the adjacent precast bearing plates 2 are not prone to misalignment, warping or loosening under the load of crawler crane.

[0023] It is important to note that the tongue and groove joint 204 is used to form an end-fitting relationship between adjacent precast bearing plates 2, ensuring that adjacent precast bearing plates 2 are aligned sequentially according to the crawler crane's travel direction during installation. The locking connecting strip 203 is located on the outer side or edge of the splicing end of adjacent precast bearing plates 2. The locking connecting strip 203 can span the ends of two adjacent precast bearing plates 2, restricting both vertically and horizontally. When the crawler crane track transitions from one precast bearing plate 2 to another, the tongue and groove joint 204 reduces end misalignment, and the locking connecting strip 203 prevents warping or loosening at the splice, allowing multiple precast bearing plates 2 to form a continuous pressure-bearing channel.

[0024] To further explain, a connecting groove 205 is provided on the side of the precast pressure plate 2 facing the damping rubber buffer pad 201. A connecting rib 206 is fixedly connected to the side of the damping rubber buffer pad 201 facing the precast pressure plate 2. A friction pad 207 is provided on the side of the damping rubber buffer pad 201 away from the precast pressure plate 2. When the damping rubber buffer pad 201 is installed, the connecting rib 206 is embedded in the connecting groove 205, so that the damping rubber buffer pad 201 forms a concave-convex limiting fit with the precast pressure plate 2. This fit can limit the movement of the damping rubber buffer pad 201 relative to the precast pressure plate 2 when the tracked crane starts, brakes, or turns, generating horizontal friction.

[0025] In addition, the friction pad 207 can be a textured rubber pad or a wear-resistant and anti-slip pad to increase the frictional resistance between the damping rubber buffer pad 201 and the basement roof slab 101. Through the cooperation of the connecting groove 205, the connecting rib 206 and the friction pad 207, the upper pressure-bearing component can not only buffer the track hoisting load, but also reduce the overall slippage of the precast pressure plate 2 and the damping rubber buffer pad 201 relative to the basement roof slab 101. Example 2

[0026] Please see Figures 1 to 3 This embodiment provides a central reinforcement component in a three-in-one reinforcement structure and method for mounting a basement roof slab using a crawler crane. The specific concept is as follows: A three-in-one reinforcement structure and method for a tracked crane to reinforce a basement roof slab includes a basement floor slab 1 and a basement roof slab 101. The three-in-one reinforcement structure and method for a tracked crane to reinforce a basement roof slab also includes a central reinforcement component.

[0027] The central reinforcement component is located below the basement roof slab 101. This component includes a first supporting beam 3, a support base 301, a snap-fit ​​base 302, a second supporting beam 303, a snap-fit ​​groove 304, a connecting angle steel 305, and a beam bottom reinforcement steel 306. This central reinforcement component forms a beam-slab reinforcement support below the basement roof slab 101, ensuring that when the basement roof slab 101 is subjected to upper loads, it not only bears the load itself but also receives lower support through the first supporting beam 3, the second supporting beam 303, and the beam bottom reinforcement steel 306.

[0028] As an example, in this embodiment, the first supporting beam 3 is disposed below the basement roof slab 101 and corresponds to the beam-slab stress area of ​​the basement roof slab 101. A support seat 301 is fixedly connected to the outer side of the end of the first supporting beam 3. The support seat 301 is used to support and position the end of the first supporting beam 3, so that the first supporting beam 3 can be stably arranged at a predetermined position below the basement roof slab 101.

[0029] Meanwhile, a snap-fit ​​seat 302 is fixedly connected to one side of the first supporting beam 3, and a snap-fit ​​groove 304 is formed on the inner side of the end of the second supporting beam 303. The snap-fit ​​seat 302 engages with the second supporting beam 303 through the snap-fit ​​groove 304. Through the engagement of the snap-fit ​​seat 302 and the snap-fit ​​groove 304, the second supporting beam 303 can be connected to one side of the first supporting beam 3, so that the first supporting beam 3 and the second supporting beam 303 form a combined support structure below the basement roof slab 101. This snap-fit ​​engagement facilitates rapid on-site assembly and disassembly, and reduces the construction time caused by extensive welding or complex bolt connections.

[0030] In addition, a connecting angle steel 305 is fixedly connected to the outer side of the snap-fit ​​seat 302, and a beam bottom reinforcing steel 306 is connected to one side of the second support beam 303. The connecting angle steel 305 is used to form an auxiliary connection between the snap-fit ​​seat 302, the second support beam 303, and the beam bottom reinforcing steel 306, so that the beam bottom reinforcing steel 306 can be stably held in the beam bottom area of ​​the basement roof slab 101. After the beam bottom reinforcing steel 306 is attached to the beam bottom area of ​​the basement roof slab 101, the supporting effect of the first support beam 3 and the second support beam 303 is no longer concentrated at a single point, but extends the force transmission range along the beam bottom direction, improving the bending resistance, crack resistance, and local deformation resistance of the lower beam slab area of ​​the basement roof slab 101.

[0031] It is important to note that the bottom reinforcing steel 306 is preferably installed along the length of the bottom of the basement roof slab 101, with its upper surface fitting against the bottom area of ​​the beam, or leveled with shims before fitting against the bottom area of ​​the beam. When the basement roof slab 101 is subjected to the load from the upper crawler crane, the bottom reinforcing steel 306 can extend the stress originally concentrated near the top support point of the connecting saddle 404 along the bottom of the beam, reducing the concentration of local compressive and shear stresses at the bottom of the beam. Thus, the middle reinforcing component can form a transitional support layer between the upper bearing component and the lower back-support component, preventing the crawler crane load from being directly and concentratedly transferred to a local area of ​​the basement roof slab 101.

[0032] To further clarify, during the installation of the central reinforcement components, the first support beam 3, the second support beam 303, and the bottom reinforcing steel 306 should be positioned as close as possible to the main load-bearing areas of the upper precast pressure plate 2. This way, when the crawler crane tracks act on the precast pressure plate 2, the load, after being transferred downwards through the basement roof slab 101, can promptly enter the support area formed by the first support beam 3, the second support beam 303, and the bottom reinforcing steel 306, thereby improving the synergistic effect between the central reinforcement components and the upper pressure-bearing components. Example 3

[0033] Please see Figure 1 and Figure 4 This embodiment provides a lower back-top component in a three-in-one reinforcement structure and method for mounting a basement roof slab using a crawler crane. The specific concept is as follows: A three-in-one reinforcement structure and method for a crawler crane to lift a basement roof slab includes a basement floor slab 1 and a basement roof slab 101. The three-in-one reinforcement structure and method for a crawler crane to lift a basement roof slab also includes a lower back-top assembly.

[0034] The lower jacking assembly is located between the basement floor slab 1 and the basement roof slab 101. The lower jacking assembly includes a central connecting base 4, a connecting column 401, connecting bolts 402, a hydraulic jack 403, and a connecting saddle 404. The lower jacking assembly is used to push upwards the basement roof slab 101 or the beam bottom area of ​​the basement roof slab 101, and to transfer the jacking reaction force downwards to the basement floor slab 1, thereby forming an adjustable vertical support below the basement roof slab 101.

[0035] As an example, in this embodiment, the central connecting base 4 is disposed above the basement floor slab 1, serving as the bottom support foundation for the lower jacking assembly. A connecting column 401 is slidably connected to the inner side of the central connecting base 4, forming a vertical force transmission component between the central connecting base 4 and the hydraulic jack 403. A connecting bolt 402 passes through the connecting column 401 and the central connecting base 4, locking the connecting column 401 after it has been adjusted to a suitable height or position, reducing the risk of the connecting column 401 shifting or loosening during the jacking process.

[0036] Meanwhile, the central connecting base 4 can be provided with a insertion cavity to accommodate the lower end of the connecting column 401. The connecting column 401 can slide up and down along the insertion cavity to accommodate the actual net height difference between the basement floor slab 1 and the basement roof slab 101. During installation, the connecting column 401 is first inserted into the central connecting base 4, and the extension height of the connecting column 401 is adjusted according to the distance between the connecting saddle 404 and the bottom area of ​​the beam. After the connecting column 401 is adjusted to the appropriate position, the connecting bolt 402 is passed through the corresponding holes of the central connecting base 4 and the connecting column 401 and locked, so that the connecting column 401 remains fixed relative to the central connecting base 4.

[0037] In addition, the hydraulic jack 403 is fixedly connected above the connecting column 401, and a connecting saddle 404 is provided on the top of the hydraulic jack 403. The hydraulic jack 403 is used to provide an adjustable upward lifting force, and the connecting saddle 404 is used to correspond to the bottom area of ​​the beam of the basement roof slab 101, so that the lifting force of the hydraulic jack 403 can be stably transmitted to the bottom of the beam through the connecting saddle 404. Compared with the method of the hydraulic jack 403 directly pressing against the concrete surface, the connecting saddle 404 can increase the pressure contact area and improve the transmission of the lifting force in the bottom area of ​​the beam.

[0038] It is important to note that the hydraulic jack 403 is used for lifting only after the connecting column 401 has completed its initial height positioning. The connecting column 401 is used to complete the initial adaptation of the support height, while the hydraulic jack 403 is used to complete the fine adjustment of the lifting force and lifting position. Through the initial adjustment of the connecting column 401 and the fine adjustment of the hydraulic jack 403, problems such as insufficient stroke of the hydraulic jack 403, jacking deviation, or unstable jacking force can be reduced, thereby improving the adaptability of the lower jacking assembly to different basement floor heights and different beam bottom heights.

[0039] To further explain, during the installation of the lower jacking assembly, the central connecting base 4, connecting column 401, hydraulic jack 403, and connecting saddle 404 are preferably arranged below the central reinforcing assembly, corresponding vertically to the main support areas of the beam bottom reinforcing steel 306 or the second support beam 303. In this way, the jacking force generated by the hydraulic jack 403 can be transmitted to the beam bottom area through the connecting saddle 404, and further cooperate with the first support beam 3, the second support beam 303, and the beam bottom reinforcing steel 306, thereby preventing the jacking force from acting in isolation at a single location on the basement roof slab 101. Example 4

[0040] Please see Figures 1-5 This embodiment provides an overall implementation method for a three-in-one reinforcement structure and method for a basement roof slab using a crawler crane. The specific idea is as follows: A three-in-one reinforcement structure and method for a basement roof slab mounted on a tracked crane includes a basement floor slab 1, a basement roof slab 101, an upper pressure-bearing component, a middle reinforcement component, and a lower back-support component.

[0041] The upper pressure-bearing component is located above the basement roof slab 101, the middle reinforcement component is located below the basement roof slab 101, and the lower back-support component is located between the basement floor slab 1 and the basement roof slab 101. The upper pressure-bearing component, the middle reinforcement component, and the lower back-support component are arranged vertically in a corresponding manner, meaning that the main pressure-bearing area on the precast pressure plate 2 used to bear the crawler crane tracks, the beam-slab reinforcement area formed by the first support beam 3 and the second support beam 303, and the top support area formed by the connecting saddle 404 and the hydraulic jack 403 overlap or at least partially overlap in the vertical projection direction.

[0042] As an example, in this embodiment, precast pressure plates 2 are first laid on top of the basement roof slab 101 according to the crawler crane's travel route and work station, so that the precast pressure plates 2 are continuously arranged along the crawler crane's track travel direction, and the damping rubber buffer pads 201 are located between the precast pressure plates 2 and the basement roof slab 101. Adjacent precast pressure plates 2 are spliced ​​at the ends through tongue and groove joints 204, and adjacent precast pressure plates 2 are connected and limited by locking connecting strips 203, so that multiple precast pressure plates 2 form a continuous track pressure channel. Then, the connecting ribs 206 on the damping rubber buffer pads 201 are embedded into the connecting grooves 205 on the precast pressure plates 2, so that the friction pads 207 are in contact with the basement roof slab 101, and the track limiting ribs 202 are located on both sides of the crawler crane's track.

[0043] Simultaneously, a first supporting beam 3 is arranged below the basement roof slab 101, and a supporting seat 301 is connected to the outer end of the first supporting beam 3, so that the first supporting beam 3 corresponds to the beam-slab stress area of ​​the basement roof slab 101. Then, the snap-fit ​​seat 302 is engaged with the snap-fit ​​groove 304 on the second supporting beam 303, so that the second supporting beam 303 is connected to one side of the first supporting beam 3, and the first and second supporting beams 303 form a combined support structure below the basement roof slab 101. Subsequently, a connecting angle steel 305 is connected to the outer side of the snap-fit ​​seat 302, and a beam bottom reinforcing steel 306 is connected to one side of the second supporting beam 303, so that the beam bottom reinforcing steel 306 fits against the beam bottom area of ​​the basement roof slab 101.

[0044] In addition, a central connecting base 4 is placed above the basement floor slab 1, and a connecting column 401 is inserted into the inner side of the central connecting base 4. The connecting column 401 and the central connecting base 4 are then connected and fixed using connecting bolts 402. A hydraulic jack 403 is then fixedly connected above the connecting column 401, and a connecting saddle 404 is placed on top of the hydraulic jack 403, aligning the connecting saddle 404 with the bottom area of ​​the beam in the basement floor slab 101. The hydraulic jack 403 is then activated to lift upwards, creating stable contact between the connecting saddle 404 and the bottom area of ​​the beam, and causing the upper bearing assembly, the middle reinforcing assembly, and the lower jacking assembly to bear corresponding vertical forces.

[0045] It is important to note that the upper pressure-bearing components, the middle reinforcement components, and the lower back-top components are not independent temporary stacks of components, but rather form a continuous force-bearing system through vertical correspondence. The crawler crane load is first borne and diffused by the precast pressure plate 2, and after being buffered by the damping rubber buffer pad 201, it is transferred to the basement roof slab 101. The first support beam 3, the second support beam 303, and the bottom reinforcement steel 306 under the basement roof slab 101 support and reinforce the beam-slab area. The hydraulic jack 403 provides upward back-top force through the connecting saddle 404, and transmits the reaction force to the basement floor slab 1 through the connecting column 401 and the middle connecting base 4.

[0046] To further explain, the method steps of this invention are not simply an installation sequence, but rather establish a three-in-one force system in the order of first forming an upper continuous pressure-bearing channel, then forming a middle beam plate reinforcement support, and finally forming a lower hydraulic back-pull reaction force. After S1 to S3 are completed, the prefabricated pressure plate 2, damping rubber buffer pad 201, track limiting rib 202, locking connecting strip 203, tongue and groove connecting groove 204, connecting groove 205, connecting rib 206, and friction pad 207 together form the upper pressure-bearing, anti-slip, and buffering structure; after S4 to S6 are completed, the first support beam 3, support seat 301, snap-fit ​​seat 302, second support beam 303, snap-fit ​​groove 304, connecting angle steel 305, and beam bottom reinforcement steel 306 together form the middle beam bottom reinforcement structure; after S7 to S8 are completed, the middle connecting base 4, connecting column 401, connecting bolt 402, hydraulic jack 403, and connecting saddle 404 together form the lower back-pull structure. Therefore, the method steps and structural components correspond one-to-one, which can ensure that the load of the crawler crane is transmitted along the predetermined path.

[0047] Working principle In use, this invention first lays the upper pressure-bearing components above the basement ceiling slab 101 according to the track width, travel route, and hoisting position of the crawler crane. Precast pressure-bearing plates 2 are continuously arranged along the crawler crane's track travel direction. Adjacent precast pressure-bearing plates 2 are joined at the ends via tongue-and-groove connecting grooves 204 and connected and limited by locking connecting strips 203, forming a continuous track pressure-bearing channel from multiple precast pressure-bearing plates 2. Track limiting ribs 202 on the upper surface of the precast pressure-bearing plates 2 are located on both sides of the track, providing lateral limiting for the crawler crane's track and preventing the track from deviating from the main pressure-bearing area of ​​the precast pressure-bearing plates 2 during travel or turning.

[0048] A damping rubber buffer pad 201 is installed at the bottom of the precast bearing plate 2, located between the precast bearing plate 2 and the basement roof slab 101. After the crawler crane load acts on the precast bearing plate 2, the precast bearing plate 2 first diffuses the concentrated load of the crawler into a larger area load, and then transmits it to the basement roof slab 101 through the damping rubber buffer pad 201. The damping rubber buffer pad 201 can absorb the vibration and impact generated during the crawler crane's starting, braking, turning and hoisting processes, reducing hard contact damage between the precast bearing plate 2 and the basement roof slab 101. After the connecting rib 206 is embedded in the connecting groove 205, it can limit the movement of the damping rubber buffer pad 201 relative to the precast bearing plate 2; after the friction pad 207 contacts the basement roof slab 101, it can improve the anti-slip stability of the upper bearing components and reduce the displacement of the bearing structure caused by the horizontal disturbance of the crawler crane.

[0049] When the central reinforcement assembly is arranged below the basement roof slab 101, the first support beam 3 is set in the stress area of ​​the beam slab of the basement roof slab 101 through the support seat 301, and the second support beam 303 is engaged with the snap-fit ​​seat 302 through the snap-fit ​​groove 304, so that the first support beam 3 and the second support beam 303 form a combined support structure. The connecting angle steel 305 is connected to the outside of the snap-fit ​​seat 302, and the beam bottom reinforcement steel 306 is connected to one side of the second support beam 303 and fits against the beam bottom area of ​​the basement roof slab 101. When the basement roof slab 101 is subjected to the upper track load, the beam bottom reinforcement steel 306 can spread the local stress along the beam bottom direction, and the first support beam 3 and the second support beam 303 provide support and reinforcement for the lower part of the beam slab, thereby reducing the local compressive stress and shear stress concentration at the beam bottom.

[0050] When arranging the lower jacking assembly between the basement floor slab 1 and the basement roof slab 101, the central connecting base 4 is placed above the basement floor slab 1, and the connecting column 401 is slidably inserted into the inner side of the central connecting base 4 and locked in place by the connecting bolts 402. The connecting column 401 can be initially height-adapted according to the actual net height between the basement floor slab 1 and the basement roof slab 101. The hydraulic jack 403 is fixedly connected above the connecting column 401 to further provide adjustable jacking force. The connecting saddle 404 is set on top of the hydraulic jack 403 and corresponds to the bottom area of ​​the beam of the basement roof slab 101. After the hydraulic jack 403 is lifted, the connecting saddle 404 makes stable contact with the bottom area of ​​the beam, transferring the jacking force to the structure below the basement roof slab 101, and then the reaction force is transferred to the basement floor slab 1 by the connecting column 401 and the central connecting base 4.

[0051] Therefore, when the crawler crane travels or lifts, the load is transferred step by step along the path of "prefabricated pressure plate 2—damping rubber buffer pad 201—basement roof slab 101—beam bottom reinforcing steel 306—first support beam 3 and second support beam 303—connecting saddle 404—hydraulic jack 403—connecting column 401—middle connecting base 4—basement floor slab 1". The upper pressure-bearing component is responsible for dispersing and buffering the crawler load, the middle reinforcing component is responsible for enhancing the lower support capacity of the beam slab, and the lower back-support component is responsible for providing vertical counter-support force. The three components correspond vertically to form a three-in-one reinforcement system of upper pressure dispersion, middle beam slab reinforcement, and lower hydraulic back-support, thereby reducing the risk of local cracking, flexural deformation, surface pressure damage, and support eccentric pressure on the basement roof slab 101 during crawler crane operation.

[0052] This invention, through the cooperation of prefabricated bearing plate 2, damping rubber buffer pad 201, track limiting rib 202, locking connecting strip 203, tongue and groove connecting groove 204, connecting groove 205, connecting rib 206, and friction pad 207, allows the track load of the crawler crane to be diffused, buffered, and limited above the basement roof slab 101, reducing surface damage, slippage, and localized impact caused by direct hard contact between traditional steel plates or roadbed boxes and the roof slab; through the first supporting beam 3, support seat 301, snap-fit ​​seat 302, and second... The combination of the supporting beam 303, the snap-fit ​​groove 304, the connecting angle steel 305, and the beam bottom reinforcing steel 306 forms a transverse combined support and beam bottom reinforcement below the basement roof slab 101, preventing the load transferred from above from being concentrated on a single slab surface or beam bottom point. Through the coordination of the central connecting base 4, connecting column 401, connecting bolt 402, hydraulic jack 403, and connecting saddle 404, the support height can be adapted according to the site clearance, and an adjustable hydraulic back-jacking force can be provided to the beam bottom area. Therefore, this invention forms a clear and continuous load transfer system of "upper pressure dispersion—middle beam slab reinforcement—lower hydraulic back-jacking," effectively solving the problems of disconnection between the upper slab and lower back-jacking support, unclear load transfer path, localized stress concentration on the roof slab, easy slippage of the slab, and unstable support back-jacking in existing reinforcement methods. This improves the safety, stability, and feasibility of the crawler crane traveling and lifting on the basement roof slab 101.

[0053] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention shall still fall within the protection scope of the technical solution of the present invention.

Claims

1. A three-in-one reinforcement structure for a basement roof slab mounted on a tracked crane, comprising a basement floor slab (1) and a basement roof slab (101), characterized in that: Also includes: The upper pressure-bearing component is set above the basement roof slab (101) and includes a precast pressure-bearing plate (2) and a damping rubber buffer pad (201) set at the bottom of the precast pressure-bearing plate (2). The precast pressure-bearing plate (2) is used to bear the crawler load of the crawler crane and distribute it to the basement roof slab (101). The central reinforcement component is located below the basement roof slab (101) and includes a first support beam (3) and a second support beam (303) located on one side of the first support beam (3). The first support beam (3) and the second support beam (303) are used to support and reinforce the beam and slab area below the basement roof slab (101). The lower top-mounting assembly is located between the basement floor slab (1) and the basement roof slab (101), including a central connecting base (4) and a hydraulic jack (403) located above the central connecting base (4). The hydraulic jack (403) is used to push the basement roof slab (101) or the bottom area of ​​the beam upward. The upper pressure-bearing component, the middle reinforcement component, and the lower top-mounting component are arranged vertically to form a load transfer path from top to bottom.

2. The three-in-one reinforcement structure for a tracked crane to reinforce a basement roof slab according to claim 1, characterized in that: The upper pressure-bearing component also includes a track limiting rib (202), which is fixedly connected to the upper surface of the prefabricated pressure plate (2). The track limiting rib (202) extends along the walking direction of the tracked crane and is used to limit the lateral displacement of the tracked crane track on the prefabricated pressure plate (2).

3. The three-in-one reinforcement structure for a tracked crane to reinforce a basement roof slab according to claim 1, characterized in that: The precast bearing plate (2) is provided with a locking connecting strip (203) on the outer side of its end, and a tongue and groove connecting groove (204) is provided on the inner side of its end. Two adjacent precast bearing plates (2) are spliced ​​together through the tongue and groove connecting groove (204) and are limited by the locking connecting strip (203).

4. The three-in-one reinforcement structure for a tracked crane to reinforce a basement roof slab according to claim 3, characterized in that: The precast bearing plate (2) has a connecting groove (205) on the side facing the damping rubber buffer pad (201), and a connecting rib (206) is fixedly connected to the side of the damping rubber buffer pad (201) facing the precast bearing plate (2). The connecting rib (206) can be embedded in the connecting groove (205). A friction pad (207) is provided on the side of the damping rubber buffer pad (201) away from the precast bearing plate (2).

5. The three-in-one reinforcement structure for a tracked crane to reinforce a basement roof slab according to claim 1, characterized in that: The central reinforcement component also includes a support base (301) and a snap-fit ​​base (302). The support base (301) is fixedly connected to the outer side of the end of the first support beam (3), and the snap-fit ​​base (302) is fixedly connected to one side of the first support beam (3). A snap-fit ​​groove (304) is provided on the inner side of the end of the second support beam (303). The snap-fit ​​base (302) is snap-fitted to the second support beam (303) through the snap-fit ​​groove (304).

6. The three-in-one reinforcement structure for a tracked crane to reinforce a basement roof slab according to claim 5, characterized in that: The central reinforcement component also includes a connecting angle steel (305) and a beam bottom reinforcement steel (306). The connecting angle steel (305) is fixedly connected to the outside of the snap-fit ​​seat (302), and the beam bottom reinforcement steel (306) is connected to one side of the second support beam (303) and fits against the beam bottom area of ​​the basement roof slab (101).

7. The three-in-one reinforcement structure for a tracked crane to reinforce a basement roof slab according to claim 1, characterized in that: The lower top-mounting assembly also includes a connecting column (401), a connecting bolt (402), and a connecting saddle (404). The connecting column (401) is slidably connected to the inner side of the middle connecting base (4). The connecting bolt (402) passes through the middle connecting base (4) and the connecting column (401). The hydraulic jack (403) is fixedly connected above the connecting column (401). The connecting saddle (404) is located on the top of the hydraulic jack (403) and corresponds to the bottom beam area of ​​the basement roof slab (101).

8. A three-dimensional reinforcement method for basement roof slabs using a crawler crane, characterized in that, The three-in-one reinforcement structure for lifting a basement roof slab using a crawler crane, as described in any one of claims 1 to 7, includes the following steps: S1. Arrangement of upper pressure-bearing components: According to the crawler crane's travel route and work station, a precast bearing plate (2) is laid on top of the basement roof slab (101), so that the precast bearing plate (2) is continuously arranged along the crawler crane's crawler track travel direction, and the damping rubber buffer pad (201) is located between the precast bearing plate (2) and the basement roof slab (101). S2. Precast bearing plate splicing limit: Two adjacent precast pressure plates (2) are spliced ​​at the ends through tongue and groove (204), and the adjacent precast pressure plates (2) are connected and limited by locking connecting strip (203) so that multiple precast pressure plates (2) form a continuous track pressure channel. S3, Buffer pad fitting and anti-slip limit: The connecting rib (206) on the damping rubber buffer pad (201) is embedded in the connecting groove (205) on the precast bearing plate (2), the friction pad (207) is attached to the corresponding contact position of the basement roof slab (101), and the track limiting rib (202) is located on both sides of the track of the crawler crane to limit the lateral displacement of the track of the crawler crane on the precast bearing plate (2). S4. Installation of central reinforcement components: A first supporting beam (3) is arranged below the basement roof slab (101), and a support seat (301) is connected to the outer side of the end of the first supporting beam (3), so that the first supporting beam (3) corresponds to the beam-slab stress area of ​​the basement roof slab (101). S5. Crossbeam snap-fit ​​forms a reinforcing support: The snap-fit ​​seat (302) is snapped into the snap-fit ​​groove (304) on the second support beam (303) so that the second support beam (303) is connected to one side of the first support beam (3) and the first support beam (3) and the second support beam (303) form a combined support structure below the basement roof slab (101). S6. Installation of reinforcing steel at the bottom of the beam: Connect the connecting angle steel (305) to the outside of the snap-fit ​​seat (302) and connect the bottom beam reinforcement steel (306) to one side of the second support beam (303) so that the bottom beam reinforcement steel (306) fits against the bottom area of ​​the basement roof slab (101) to expand the support range of the middle reinforcement component for the bottom area of ​​the beam. S7. Installation of the lower top-mounted assembly: Place the central connecting base (4) above the basement floor slab (1), insert the connecting column (401) into the inner side of the central connecting base (4), and connect and fix the connecting column (401) and the central connecting base (4) with the connecting bolt (402); S8, the hydraulic jacking forms a three-in-one force-bearing state: The hydraulic jack (403) is fixedly connected to the top of the connecting column (401), and the connecting saddle (404) is set on the top of the hydraulic jack (403), so that the connecting saddle (404) corresponds to the bottom area of ​​the beam of the basement roof slab (101); the hydraulic jack (403) is started to lift upward, so that the upper pressure-bearing component, the middle reinforcement component and the lower jacking component are subjected to corresponding forces in the vertical direction, thereby forming a three-in-one reinforcement state of upper pressure dispersion, middle beam and slab reinforcement and lower hydraulic jacking.

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