A hoisting construction method of a large-span multi-layer steel structure

Abstract

The present application relates to a kind of hoisting construction methods of large-span multilayer steel structure, comprising: step 1: the F (n) Layer steel beam is lifted to design elevation, obtain F (n) Layer floor;Hydraulic jacking device and winch lifting device are installed on F (n) Layer floor;Step 2: F (n+1) Layer steel beam is jacked up to obtain F (n+1) Layer floor;Step 3: F (n‑1) Layer steel beam is lifted to obtain F (n‑1) Layer floor;Step 4: hydraulic jacking device is installed to F (n+1) Layer floor, F (n+2) Layer steel beam is jacked up;Winch lifting device is installed to F (n‑1) Layer floor, F (n‑2) Layer steel beam is lifted;Step 5: the lifting of hydraulic jacking device in step 4 is repeated and the lifting of winch lifting device is lowered, and the lifting and lifting action are repeated until construction is completed.The present application can form the situation of synchronous construction of each layer under the premise of ensuring safety, which greatly improves the construction efficiency.

Description

Technical Field

[0001] This invention relates to the field of civil engineering construction technology, and in particular to a hoisting construction method for large-span, multi-story steel structures. Background Technology

[0002] In the construction of large-span, multi-story steel structure buildings, the conventional steel structure hoisting sequence involves installing the corresponding steel columns, beams, and other components sequentially from bottom to top, following the civil construction. This hoisting method is technically mature, but it requires large lifting equipment, resulting in high costs for both machinery and labor. Furthermore, high-altitude hoisting poses safety hazards. Another method, reverse construction, involves constructing the roof truss first and then hoisting the components from top to bottom. This method addresses some of the problems encountered in the sequential construction process, but it still suffers from drawbacks such as long construction periods and low efficiency.

[0003] Therefore, how to provide a hoisting construction method for large-span, multi-story steel structures that can avoid the use of large lifting equipment and has higher construction efficiency is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] This invention provides a hoisting construction method for large-span, multi-story steel structures to solve the aforementioned technical problems.

[0005] To solve the above-mentioned technical problems, the present invention provides a method for hoisting and constructing a large-span, multi-story steel structure, comprising the following steps:

[0006] Step 1: Install F (n) The steel beams include: assembling segmented steel beams on the ground at the bottom of the main building structure using a truck crane; and assembling the completed F-section steel beams. (n) The steel beams were lifted to the design elevation and fixedly connected to the main structure. Steel truss floor slabs were then laid and concrete was poured to obtain F. (n) Floor slab; in F (n) A winch lifting device and a hydraulic jacking device are installed on the floor slab;

[0007] Step 2: Lift F (n+1) Layered steel beams, including: in F (n) F on the floor slab (n+1) The segmented steel beams of the layer were assembled; the assembled F was then lifted using the hydraulic jacking device. (n+1) The steel beams were lifted to the design elevation and fixedly connected to the main structure. Steel truss floor slabs were then laid and concrete was poured, resulting in F... (n+1) Floor slab;

[0008] Step 3: Increase F (n-1) Layered steel beams, including: F-beams placed on the ground at the bottom of the main structure. (n-1)The segmented steel beams of the layer were assembled; the hoisting device was used to lift the assembled F... (n-1) The steel beams were lifted to the design elevation and fixedly connected to the main structure. Steel truss floor slabs were then laid and concrete was poured to obtain F. (n-1) Floor slab;

[0009] Step 4: Lift F (n+2) Layered steel beams, lifting F (n-2) The layer steel beam includes: removing the hydraulic jacking device and installing it onto F. (n+1) On the floor slab; remove the winch lifting device and install it on F. (n-1) On the floor slab; using the hydraulic jacking device to lift the assembled F (n+2) The steel beams were lifted to the design elevation and fixedly connected to the main structure. Steel truss floor slabs were then laid and concrete was poured, resulting in F... (n+2) Floor slab; using the aforementioned winch lifting device to lift the assembled F (n-2) The steel beams were lifted to the design elevation and fixedly connected to the main structure. Steel truss floor slabs were then laid and concrete was poured to obtain F. (n-2) Floor slab;

[0010] Step 5: Repeat the upward movement of the hydraulic jacking device and the downward movement of the winch lifting device in Step 4, and continue to lift F using the hydraulic jacking device. (n+3) The layer of steel beams is then lifted using the aforementioned winch lifting device to continue lifting F. (n-3) Layered steel beams, until the steel beam hoisting construction is completed.

[0011] Preferably, the winch lifting device includes a winch body, a base, a foundation beam, a wire rope, and a pulley assembly. The winch body is mounted on the base, the base is mounted on the foundation beam, and the foundation beam is connected to the steel beam of the same layer via a steel platform beam. One end of the wire rope is connected to the winch body, and the other end passes around the pulley assembly and is connected to the bottom of the steel platform beam. The lower layer steel beam is suspended on the wire rope.

[0012] Preferably, the pulley assembly includes a hook pulley and a ring pulley. The ring pulley is installed at the bottom of the steel platform beam via a ring, and the hook pulley is connected to a hook, with the lower steel beam suspended on the hook.

[0013] Preferably, the winch lifting device further includes a controller, the output of which is signal-connected to the winch body.

[0014] Preferably, the winch lifting device is also equipped with a tension sensor, which is connected to the input signal of the controller.

[0015] Preferably, the winch lifting device further includes a display module and a remote monitoring module, which are respectively connected to the controller via signals.

[0016] Preferably, the hydraulic jacking device includes a hydraulic jack and several standard jacking frames. The jacking process of the hydraulic jack includes: fixing the upper part of a standard jacking frame to the bottom of the steel beam to be jacked, and placing the hydraulic jack below the standard jacking frame; using the hydraulic jack to jack up the steel beam to be jacked, and stopping the jacking after jacking up to a preset stroke; using another standard jacking frame installed from the bottom of the hydraulic jack to lift the hydraulic jack; continuing the next jacking operation, and repeating this process until the steel beam is jacked to the design elevation.

[0017] Preferably, the preset stroke of the hydraulic jack for each lifting is 1.5m.

[0018] Compared with existing technologies, the hoisting and construction method for large-span, multi-story steel structures provided by this invention has the following advantages:

[0019] 1. This invention enables simultaneous construction on all levels while ensuring safety, with orderly on-site traffic organization, no overlapping of processes, and significantly improved construction efficiency and green construction effect.

[0020] 2. This invention solves the problem of narrow site space during the construction of large-span steel structures. By synchronous jacking and lifting, it avoids the need to use large-scale lifting equipment due to site constraints, thus achieving adaptation to local conditions.

[0021] 3. This invention is easy to operate, saves costs, speeds up construction progress, shortens construction period, is easy to promote and popularize on a large scale, and has high applicability. Attached Figure Description

[0022] Figures 1 to 4 This is a schematic diagram of the construction steps of a hoisting construction method for a large-span, multi-layer steel structure according to a specific embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the structure of the winch lifting device in a specific embodiment of the present invention.

[0024] In the diagram: 01-Main structure, 02-Segmented steel beams; 10-Truck crane, 20-Wind hoisting device, 21-Wind body, 22-Base, 23-Foundation beam, 24-Steel platform beam, 25-Wire rope, 26-Hook pulley, 27-Lifting ring pulley, 28-Lifting ring, 30-Hydraulic jacking device, 31-Hydraulic jack, 32-Standard section jacking frame; 41-F (n) Floor slab, 42-F (n+1) Floor slab, 43-F(n-1) Floor slab. Detailed Implementation

[0025] To illustrate the technical solutions of the invention in more detail, specific embodiments are listed below to demonstrate the technical effects; it should be emphasized that these embodiments are used to illustrate the invention and not to limit the scope of the invention.

[0026] The present invention provides a method for hoisting and constructing large-span, multi-story steel structures, such as... Figures 1 to 4 As shown, it includes the following steps:

[0027] Step 1: Install F (n) The steel beams include: assembling segmented steel beams 02 on the ground at the bottom of the main building structure 01 using a truck crane 10; and transporting the assembled F... (n) The steel beams were lifted to the design elevation and fixedly connected to the main structure 01. Steel truss floor slabs were then laid and concrete was poured to obtain F. (n) Floor slab 41; in F (n) A winch lifting device 20 and a hydraulic jacking device 30 are installed on the floor slab 41, such as... Figure 1 As shown;

[0028] Step 2: Lift F (n+1) Layered steel beams, including: in F (n) Floor 41 General F (n+1) The segmented steel beams 02 of the layer are assembled; the assembled F is lifted using the hydraulic jacking device 30. (n+1) The steel beams were lifted to the design elevation and fixedly connected to the main structure 01. Steel truss floor slabs were then laid and concrete was poured to obtain F. (n+1) Floor slab 42, such as Figure 2 and Figure 3 As shown;

[0029] Step 3: Increase F (n-1) Layered steel beams, including: F on the ground at the bottom of the main structure 01 (n-1) The segmented steel beams 02 of the layer are assembled; the hoisting device 20 is used to lift the assembled F (n-1) The steel beams were lifted to the design elevation and fixedly connected to the main structure 01. Steel truss floor slabs were then laid and concrete was poured to obtain F. (n-1) Floor slab 43, such as Figure 3 and Figure 4 As shown;

[0030] Step 4: Lift F (n+2) Layered steel beams, lifting F (n-2) The layer steel beam includes: removing the hydraulic jacking device 30 and installing it onto F. (n+1) On floor slab 42; remove the winch lifting device 20 and install it on floor F.(n-1) On floor slab 43; using the hydraulic jacking device 30 to lift the assembled F (n+2) The steel beams were lifted to the design elevation and fixedly connected to the main structure 01. Steel truss floor slabs were then laid and concrete was poured to obtain F. (n+2) Floor slab; using the aforementioned winch lifting device 20 to lift the assembled F (n-2) The steel beams were lifted to the design elevation and fixedly connected to the main structure 01. Steel truss floor slabs were then laid and concrete was poured to obtain F. (n-2) Floor slabs, such as Figure 4 As shown;

[0031] Step 5: Repeat the upward movement of the hydraulic jacking device 30 and the downward movement of the winch lifting device 20 in Step 4, and continue to lift F using the hydraulic jacking device 30. (n+3) The layer of steel beams is further lifted using the winch lifting device 20. (n-3) Layered steel beams, until the steel beam hoisting construction is completed.

[0032] This invention enables simultaneous construction of each floor while ensuring safety, resulting in orderly on-site traffic organization, no overlapping of work processes, and significantly improved construction efficiency and green construction effects. It solves the problem of limited space during the construction of large-span steel structures by using synchronous jacking and lifting to avoid the need for larger lifting equipment due to site constraints, thus adapting to local conditions. Furthermore, this invention is easy to operate, saves costs, accelerates construction progress, shortens the construction period, and is easy to promote and popularize on a large scale, demonstrating high applicability.

[0033] In some embodiments, please refer to the following: Figure 5 The winch lifting device 20 includes a winch body 21, a base 22, and a foundation beam 23. The steel wire rope 25 and pulley assembly are used. The winch body 21 is installed on the base 22, and the base 22 is installed on the foundation beam 23. The foundation beam 23 is connected to the steel beam of this layer through the steel platform beam 24 to prevent the steel beam or winch body 21 from moving during the lifting process. One end of the steel wire rope 25 is connected to the winch body 21, and the other end passes around the pulley assembly and is connected to the bottom of the steel platform beam 24. The lower layer steel beam is hoisted on the steel wire rope 25, and the steel beam is lifted by pulling the steel wire rope 25.

[0034] In some embodiments, please refer to Figure 5The pulley assembly includes a hook pulley 26 and a ring pulley 27. The ring pulley 27 is installed at the bottom of the steel platform beam 24 via a ring 28. The hook pulley 26 is connected to a hook (not shown), and the lower steel beam is suspended from the hook. In this embodiment, the tensile force of the hook pulley 26, the ring pulley 27, and the ring 28 are all greater than 20T to ensure safety during the hoisting process.

[0035] In some embodiments, the winch lifting device 20 further includes a controller, the output of which is signal-connected to the winch body 21. In this embodiment, a large-screen color LCD touch screen (Delta) PLC all-in-one machine plus a manual control switch is used to control the two winch bodies 21.

[0036] In some embodiments, a tension sensor (e.g., installed on the wire rope 25) is also installed on the winch lifting device 20. The tension sensor is connected to the input signal of the controller. The tension sensor can measure the real-time tension (maximum 10 tons). When a fault occurs during operation and causes the tension to be unbalanced and exceed the specified value, the machine will automatically stop and sound an alarm, and the corresponding machine position will flash an alarm to remind the staff to deal with it as soon as possible.

[0037] In some embodiments, the winch lifting device 20 may further include a display module and a remote monitoring module, which are respectively connected to the controller. The display module (e.g., an LCD screen) can display parameters from four tension sensors and laser ranging parameters, the horizontal deviation of the steel beam, the operating status of the winch body 21, whether information acquisition is normal, whether the power supply is missing a phase (no operation without a phase), operator facial recognition (to prevent unauthorized personnel from operating the lifting power equipment), etc. The remote monitoring module can be used for 4G / 5G wireless remote information transmission and uploading to achieve remote supervision. Of course, a Beidou satellite positioning module, an ambient temperature detection module, a motor temperature detection module, etc., can also be added according to specific needs.

[0038] In some embodiments, please refer to the following: Figure 2 and Figure 4 The hydraulic jacking device 30 includes a hydraulic jack 31 and several standard jacking frames 32. The lifting capacity of the hydraulic jack 31 can be customized according to the on-site construction requirements. The size of the standard jacking frame 32 can be 1.2m×1.2m×1.5m. The lower end cap of the hydraulic jack 31 can be connected to a multi-section lattice-type load-bearing frame. The load-bearing frame can be connected with steel pins and high-strength bolts.

[0039] The lifting process of the hydraulic jack 31 may include: fixing the upper part of a standard section lifting frame 32 to the underside of the steel beam to be lifted, ensuring a stable connection to avoid shaking; setting the hydraulic jack 31 below the standard section lifting frame 32; after checking and adjusting the relevant equipment, starting the lifting process, using the hydraulic jack 31 to lift the steel beam to be lifted above, and stopping the lifting after reaching a preset stroke. In this embodiment, the preset stroke of the hydraulic jack 31 for each lift is 1.5m; using another standard section lifting frame 32 installed from the bottom of the hydraulic jack 31, lifting the hydraulic jack 31, for example, installing a standard section lifting frame 32 from the bottom onto the load-bearing frame, lowering the hydraulic jack 31 so that the load-bearing frame falls onto the base below, the hydraulic jack 31 continues to fall back and the upper standard section lifting frame 32 is removed; continuing the next lifting operation, and repeating this process until the steel beam is lifted to the design elevation.

[0040] This invention combines multiple hoisting methods to achieve a construction method that combines forward and reverse hoisting for large-span, multi-story steel structures. On the one hand, it reduces the construction costs and risks associated with erecting temporary support frames or full-span scaffolding during forward construction. On the other hand, it solves the problem of not being able to use large lifting equipment due to space constraints during reverse construction. In addition, this invention, while ensuring safety, creates a situation where each floor is constructed simultaneously, with orderly on-site traffic organization, no overlapping of processes, and significantly improved construction efficiency and green construction effects.

[0041] In summary, the hoisting construction method for large-span, multi-story steel structures provided by this invention includes the following steps: Step 1: Install F (n) The steel beams include: assembling segmented steel beams 02 on the ground at the bottom of the main building structure 01 using a truck crane 10; and transporting the assembled F... (n) The steel beams were lifted to the design elevation and fixedly connected to the main structure 01. Steel truss floor slabs were then laid and concrete was poured to obtain F. (n) Floor slab 41; in F (n) Install a winch lifting device 20 and a hydraulic jacking device 30 on floor slab 41; Step 2: Jacking F (n+1) Layered steel beams, including: in F (n) Floor 41 General F (n+1) The segmented steel beams 02 of the layer are assembled; the assembled F is lifted using the hydraulic jacking device 30. (n+1) The steel beams were lifted to the design elevation and fixedly connected to the main structure 01. Steel truss floor slabs were then laid and concrete was poured to obtain F. (n+1) Floor slab 42; Step 3: Lift F (n-1) Layered steel beams, including: F on the ground at the bottom of the main structure 01 (n-1) The segmented steel beams 02 of the layer are assembled; the hoisting device 20 is used to lift the assembled F(n-1) The steel beams were lifted to the design elevation and fixedly connected to the main structure 01. Steel truss floor slabs were then laid and concrete was poured to obtain F. (n-1) Floor slab 43; Step 4: Lifting F (n+2) Layered steel beams, lifting F (n-2) The layer steel beam includes: removing the hydraulic jacking device 30 and installing it onto F. (n+1) On floor slab 42; remove the winch lifting device 20 and install it on floor F. (n-1) On floor slab 43; using the hydraulic jacking device 30 to lift the assembled F (n+2) The steel beams were lifted to the design elevation and fixedly connected to the main structure 01. Steel truss floor slabs were then laid and concrete was poured to obtain F. (n+2) Floor slab; using the aforementioned winch lifting device 20 to lift the assembled F (n-2) The steel beams were lifted to the design elevation and fixedly connected to the main structure 01. Steel truss floor slabs were then laid and concrete was poured to obtain F. (n-2) Floor slab; Step 5: Repeat the upward movement of the hydraulic jacking device 30 and the downward movement of the winch lifting device 20 in Step 4, and continue to jack F using the hydraulic jacking device 30. (n+3) The layer of steel beams is further lifted using the winch lifting device 20. (n-3) The process involves lifting steel beams layer by layer until the beams are fully installed. This invention enables simultaneous construction of each layer while ensuring safety, resulting in orderly on-site traffic, no overlapping procedures, and significantly improved construction efficiency and green construction practices. It also solves the problem of limited space during the construction of large-span steel structures by using synchronous jacking and lifting to avoid the need for larger cranes due to site constraints, thus adapting to local conditions. Furthermore, this invention is easy to operate, saves costs, accelerates construction progress, shortens the construction period, and is easily promoted and popularized on a large scale, demonstrating high applicability.

[0042] Obviously, those skilled in the art can make various modifications and variations to the invention without departing from the spirit and scope of the invention. Therefore, if these modifications and variations fall within the scope of the claims of the invention and their equivalents, the invention is also intended to include these modifications and variations.

Claims

1. A method for hoisting and constructing a large-span, multi-story steel structure, characterized in that: Includes the following steps: Step 1: Install F （n） The steel beams include: assembling segmented steel beams on the ground at the bottom of the main building structure using a truck crane; and assembling the completed F-section steel beams. （n） The steel beams were lifted to the design elevation and fixedly connected to the main structure. Steel truss floor slabs were then laid and concrete was poured to obtain F. （n） Floor slab; in F （n） A winch lifting device and a hydraulic jacking device are installed on the floor slab; Step 2: Lift F （n+1） Layered steel beams, including: in F （n） F on the floor slab （n+1） The segmented steel beams of the layer were assembled; the assembled F was then lifted using the hydraulic jacking device. （n+1） The steel beams were lifted to the design elevation and fixedly connected to the main structure. Steel truss floor slabs were then laid and concrete was poured, resulting in F... （n+1） Floor slab; Step 3: Increase F （n-1） Layered steel beams, including: F-beams placed on the ground at the bottom of the main structure. （n-1） The segmented steel beams of the layer were assembled; the hoisting device was used to lift the assembled F... （n-1） The steel beams were lifted to the design elevation and fixedly connected to the main structure. Steel truss floor slabs were then laid and concrete was poured to obtain F. （n-1） Floor slab; Step 4: Lift F （n+2） Layered steel beams, lifting F （n-2） The layer steel beam includes: removing the hydraulic jacking device and installing it onto F. （n+1） On the floor slab; remove the winch lifting device and install it on F. （n-1） On the floor slab; using the hydraulic jacking device to lift the assembled F （n+2） The steel beams were lifted to the design elevation and fixedly connected to the main structure. Steel truss floor slabs were then laid and concrete was poured, resulting in F... （n+2） Floor slab; using the aforementioned winch lifting device to lift the assembled F （n-2） The steel beams were lifted to the design elevation and fixedly connected to the main structure. Steel truss floor slabs were then laid and concrete was poured to obtain F. （n-2） Floor slab; Step 5: Repeat the upward movement of the hydraulic jacking device and the downward movement of the winch lifting device in Step 4, and continue to lift F using the hydraulic jacking device. （n+3） The layer of steel beams is then lifted using the aforementioned winch lifting device to continue lifting F. （n-3） Layered steel beams.

2. The hoisting construction method for large-span, multi-story steel structures as described in claim 1, characterized in that, The winch lifting device includes a winch body, a base, a foundation beam, a wire rope, and a pulley assembly. The winch body is installed on the base, and the base is installed on the foundation beam. The foundation beam is connected to the steel beam of the mounting layer through a steel platform beam. One end of the wire rope is connected to the winch body, and the other end passes around the pulley assembly and is connected to the bottom of the steel platform beam. The lower steel beam is hoisted onto the wire rope.

3. The hoisting construction method for large-span, multi-story steel structures as described in claim 2, characterized in that, The pulley assembly includes a hook pulley and a ring pulley. The ring pulley is installed at the bottom of the steel platform beam via a ring. The hook pulley is connected to a hook, and the lower steel beam is hung on the hook.

4. The hoisting construction method for large-span, multi-story steel structures as described in claim 2, characterized in that, The winch lifting device also includes a controller, the output of which is connected to the winch body via a signal connection.

5. The hoisting construction method for large-span, multi-story steel structures as described in claim 4, characterized in that, The winch lifting device is also equipped with a tension sensor, which is connected to the input signal of the controller.

6. The hoisting construction method for large-span, multi-story steel structures as described in claim 4, characterized in that, The winch lifting device also includes a display module and a remote monitoring module, which are respectively connected to the controller.

7. The hoisting construction method for large-span, multi-story steel structures as described in claim 1, characterized in that, The hydraulic jacking device includes a hydraulic jack and several standard jacking frames. The jacking process of the hydraulic jack includes: fixing the upper part of a standard jacking frame to the bottom of the steel beam to be jacked, and placing the hydraulic jack below the standard jacking frame; using the hydraulic jack to jack up the steel beam to be jacked, and stopping the jacking after jacking up to the preset stroke; using another standard jacking frame installed from the bottom of the hydraulic jack to lift the hydraulic jack; continuing the jacking process for the next time, and repeating this process until the steel beam is jacked up to the design elevation.

8. The hoisting construction method for large-span, multi-story steel structures as described in claim 7, characterized in that, The preset stroke of the hydraulic jack for each lifting is 1.5m.

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