Installation and construction method for inter-building special-shaped overlapped steel structure corridor

Abstract

The invention discloses an inter-building special-shaped overlapped steel structure corridor installation and construction method, belongs to the technical field of steel structure corridor installation and construction, and solves the problem that an existing steel structure corridor construction method is not suitable for building a multi-layer overlapped corridor. The method comprises the specific steps that a hydraulic synchronous lifting system is installed on a lifting platform; the high-rise steel structure corridor main frame and the low-rise steel structure corridor are assembled; the high-rise steel structure corridor main frame is lifted to the specified height, and part of components, not overlapped with the low-rise steel structure corridor in the vertical direction, on the high-rise steel structure corridor main frame are installed; the low-layer steel structure corridor is lifted to the specified height; and other components are mounted on the high-rise steel structure corridor main frame. According to the construction method, main splicing, welding and other work of the high-rise steel structure corridor main frame and the whole low-rise steel structure corridor are carried out on the ground, spare parts can be hoisted through a truck crane, the construction efficiency is high, and the construction quality is easy to guarantee; the high-altitude hoisting workload can be reduced to the maximum extent, and the installation construction period is shortened.

Description

Technical Field

[0001] This invention relates to the field of steel structure corridor installation and construction technology, and in particular to a method for installing irregularly shaped overlapping steel structure corridors between buildings. Background Technology

[0002] With the continuous development of high-rise building construction, steel structures are widely used due to their advantages such as high strength, light weight, and short construction period. In high-rise buildings, steel structure corridors are often used to connect different towers to achieve the integrity of the building's functions. However, there are many problems in the traditional steel structure installation and corridor construction process: the amount of work at height is large, resulting in high safety risks; component hoisting relies on large equipment, which is limited by site and equipment performance, resulting in low construction efficiency; the installation accuracy of embedded parts and the docking accuracy of components are difficult to control, affecting structural stability; when the corridor components are assembled at height, the erection of the assembly frame is difficult, and the quality and safety risks are prominent.

[0003] Since the installation of steel structure connecting corridors involves high-altitude operations, if component-based high-altitude assembly and welding are used, not only will the workload be enormous, but the on-site machinery and equipment will also be insufficient to meet the hoisting requirements. Furthermore, the required high-altitude assembly scaffolding will be difficult to erect, posing significant safety and quality risks. The high construction difficulty is detrimental to the safety, quality, and schedule control of on-site steel structure installation. Therefore, existing technologies typically employ pre-assembly, where the steel structure connecting corridor is assembled first and then lifted to the designated height using hoisting equipment. This method is relatively easy to implement for single-story or simple steel structure connecting corridors. However, for high-rise buildings, there is often a vertical overlap between the high-rise and low-rise steel structure connecting corridors. This overlapping structure makes the lifting of the high-rise corridor difficult and inefficient because the lower-rise corridor can hinder the lifting of the higher-rise corridor. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a method for installing and constructing irregularly shaped overlapping steel structure corridors between buildings, solving the problem that existing steel structure corridor construction methods are not suitable for constructing multi-story overlapping corridors.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: Step S1: Install the high-rise prefabricated structure and the low-rise prefabricated structure at the corresponding positions on the shear wall; Step S2: Set up a high-level lifting platform and a low-level lifting platform, and install a hydraulic synchronous lifting system on the high-level lifting platform and the low-level lifting platform respectively; Step S3: Assemble the main frame of the high-rise steel structure corridor and lift it to 2-4 meters before pausing; Step S4: Assemble the low-rise steel structure connecting corridor; Step S5: Continue to raise the main frame of the high-rise steel structure corridor to the specified height, and install the components on the main frame of the high-rise steel structure corridor that do not overlap with the low-rise steel structure corridor in the vertical direction. Step S6: Raise the low-rise steel structure corridor to the designated height; Step S7: Install the remaining components on the main frame of the high-rise steel structure corridor.

[0006] In this plan, the main assembly and welding work of the high-rise steel structure corridor main frame and the low-rise steel structure corridor as a whole is carried out on the ground. The mobile crane can be used for the hoisting of individual parts, which is efficient and easy to ensure construction quality. Some components of the high-rise steel structure corridor main frame are hoisted in the air, which can minimize the amount of high-altitude hoisting work and shorten the installation and construction cycle.

[0007] Further, step S3 includes: Step S301: Install a pre-assembled support device for the steel structure corridor on the roof of the podium building, and assemble the main frame of the high-rise steel structure corridor directly below the projection surface of the installation location of the high-rise steel structure corridor. Step S302: Weld temporary lifting devices onto the main frame of the high-rise steel structure corridor, and then use the hydraulic synchronous lifting system on the high-rise lifting platform to lift the main frame of the high-rise steel structure corridor 2-4 meters before pausing.

[0008] Further, step S4 includes: Step S401: Assemble the main frame of the low-rise steel structure corridor directly below the projection plane of the installation location of the low-rise steel structure corridor; the overlapping parts of the low-rise steel structure corridor and the high-rise steel structure corridor in the vertical direction are assembled by using a tower crane passing through the gap of the main frame of the high-rise steel structure corridor. Step S402: After assembly, install and weld the supplementary members on the main frame of the low-rise steel structure corridor; Step S403: Lay the floor decking and decorate it to form a complete low-rise steel structure corridor.

[0009] Further, step S5 includes: Step S501: Use the hydraulic synchronous lifting system on the high-rise lifting platform to continue lifting the main frame of the high-rise steel structure corridor to the set height and connect it with the upper pre-installed structure. Step S502: Unload each lifting point of the hydraulic synchronous lifting system on the high-rise lifting platform in sequence, so that the self-weight of the main frame of the high-rise steel structure corridor is transferred to the pre-assembled structure, and the design state is achieved. Step S503: Install the supplementary members and floor decking on the main frame of the high-rise steel structure corridor at locations that do not overlap with the low-rise steel structure corridor.

[0010] Further, step S6 includes: Step S601: Weld temporary lifting devices onto the low-rise steel structure corridor; Step S602: Use the hydraulic synchronous lifting system on the low-level lifting platform to lift the low-level steel structure corridor to the designated height, so that the low-level steel structure corridor can be connected with the upper pre-installed structure to form a whole; Step S603: Unload the hydraulic synchronous lifting system on the low-level lifting platform to transfer the weight of the main frame of the low-level steel structure corridor to the pre-installed structure.

[0011] Further, step S7 includes: Step S701: Install the additional members on the main frame of the high-rise steel structure corridor at the positions overlapping with the low-rise steel structure corridor, and weld them; Step S701: Lay the floor decking in the remaining empty areas and decorate it to form a complete high-rise steel structure corridor.

[0012] The beneficial effects of this invention are: This invention provides a method for installing an irregularly shaped overlapping steel structure corridor between buildings. First, the main frame of the high-rise steel structure corridor is pre-assembled and lifted into the air. Then, the entire low-rise steel structure corridor is pre-assembled, and then the high-rise and low-rise steel structure corridors are lifted sequentially. This construction method ensures that the high-rise and low-rise steel structure corridors do not interfere with each other during lifting. Furthermore, the main assembly and welding work of the main frame of the high-rise steel structure corridor and the entire low-rise steel structure corridor is carried out on the ground, allowing for the use of a truck crane for component hoisting, resulting in high construction efficiency and easy quality assurance. Only some components of the main frame of the high-rise steel structure corridor are hoisted into the air, minimizing the amount of high-altitude hoisting work and shortening the installation cycle. Attached Figure Description

[0013] Figure 1 This is a construction flowchart of a construction method for installing an irregularly shaped overlapping steel structure corridor between buildings according to the present invention. Figure 2 This is a schematic diagram of the structure for assembling and lifting a high-rise steel structure corridor in this invention; Figure 3 This is a schematic diagram of the structure in this invention that elevates a high-rise steel structure corridor to half-air. Figure 4 This is a schematic diagram of the assembly and lifting of the low-rise steel structure corridor in this invention; Figure 5 This is a schematic diagram of the completed lifting of the high-rise steel structure corridor and the low-rise steel structure corridor in this invention; Figure 6 This is a top view of the 13-story and 30-story steel structure connecting corridors in Example 2; Figure 7This is a schematic diagram of the completed construction of the 13-story steel structure connecting corridor and the 30-story steel structure in Example 2.

[0014] Figure label: 1. High-rise steel structure connecting corridor; 2. Low-rise steel structure connecting corridor; 3. High-rise prefabricated structure; 4. Low-rise prefabricated structure; 5. Hydraulic synchronous lifting system; 51. Lifter; 52. Steel strand; 53. Lifting device; 6. High-rise lifting platform; 7. Low-rise lifting platform; Detailed Implementation The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Specific embodiments of the present invention are described below to facilitate understanding by those skilled in the art. However, it should be understood that the present invention is not limited to the scope of the specific embodiments. For those skilled in the art, various modifications are obvious as long as they fall within the spirit and scope of the present invention as defined and determined by the appended claims. All inventions utilizing the concept of the present invention are protected.

[0015] Example 1 like Figure 1 As shown, this embodiment provides a construction method for installing irregularly shaped overlapping steel structure corridors between buildings, solving the problem that existing steel structure corridor construction methods are not suitable for constructing multi-story overlapping corridors; specifically, it includes: Step S1: Install the high-rise prefabricated structure 3 and the low-rise prefabricated structure 4 at the corresponding positions on the shear wall.

[0016] Step S2: Set up a high-level lifting platform 6 and a low-level lifting platform 7, and install a hydraulic synchronous lifting system 5 on the high-level lifting platform 6 and the low-level lifting platform 7 respectively.

[0017] The hydraulic synchronous lifting system 5 includes a hoist 51, a steel strand 52, and a temporary lifting device 53; the steel strand 52 is connected to the hoist 51, and the steel strand 52 is fixed to the steel structure corridor by the temporary lifting device 53.

[0018] Step S3: Assemble the main frame of the high-rise steel structure connecting corridor 1, and pause after lifting it to 2-4 meters; specifically including: Step S301: As Figure 2 As shown, a pre-assembled support device for the steel structure corridor is set on the roof of the podium, and the main frame of the high-rise steel structure corridor 1 is assembled directly below the projection plane of the installation position of the high-rise steel structure corridor 1. Step S302: As Figure 3 As shown, a temporary lifting device 53 is welded onto the main frame of the high-rise steel structure corridor 1. The hydraulic synchronous lifting system 5 on the high-rise lifting platform 6 is used to lift the main frame of the high-rise steel structure corridor 1 by 2-4 meters and then pauses.

[0019] Step S4: Assemble the low-rise steel structure connecting corridor 2; specifically including: Step S401: As Figure 4 As shown, the main frame of the low-rise steel structure corridor 2 is assembled directly below the projection plane of the installation position of the low-rise steel structure corridor 2; the part of the low-rise steel structure corridor 2 and the high-rise steel structure corridor 1 that overlap in the vertical direction is assembled by using a tower crane passing through the gap of the main frame of the high-rise steel structure corridor 1. Step S402: After assembly, install and weld the supplementary members on the main frame of the low-rise steel structure corridor 2; Step S403: Lay the floor decking and decorate it to form a complete low-rise steel structure corridor 2.

[0020] Step S5: Continue raising the main frame of the high-rise steel structure corridor 1 to the designated height, and install the components on the main frame of the high-rise steel structure corridor 1 that do not overlap with the low-rise steel structure corridor 2 in the vertical direction; specifically including: Step S501: Use the hydraulic synchronous lifting system 5 on the high-rise lifting platform 6 to continue lifting the main frame of the high-rise steel structure corridor 1 to the set height and connect it with the upper pre-installed structure. Step S502: Unload each lifting point of the hydraulic synchronous lifting system 5 on the high-rise lifting platform 6 in sequence, so that the self-weight of the main frame of the high-rise steel structure corridor 1 is transferred to the pre-assembled structure, and the design state is achieved. Step S503: Install the supplementary members and floor decking on the main frame of the high-rise steel structure corridor 1, where they do not overlap with the low-rise steel structure corridor 2.

[0021] Step S6: Raise the low-rise steel structure connecting corridor 2 to the designated height; specifically including: Step S601: Weld temporary lifting equipment 53 onto the low-rise steel structure corridor 2; Step S602: Use the hydraulic synchronous lifting system 5 on the low-level lifting platform 7 to lift the low-level steel structure corridor 2 to the designated height, so that the low-level steel structure corridor 2 can be connected with the upper pre-installed structure to form a whole; Step S603: Unload the hydraulic synchronous lifting system 5 on the low-level lifting platform 7, so that the main frame of the low-level steel structure corridor 2 is transferred to the pre-installed structure by its own weight.

[0022] Step S7: As Figure 5 As shown, the remaining components are installed on the main frame of the high-rise steel structure connecting corridor 1; specifically including: Step S701: Install the supplementary members on the main frame of the high-rise steel structure corridor 1 at the position overlapping with the low-rise steel structure corridor 2, and weld them; Step S702: Lay the floor decking in the remaining empty areas and decorate it to form a complete high-rise steel structure corridor 1.

[0023] In this embodiment, the main assembly and welding of the main frame of the high-rise steel structure corridor 1 and the low-rise steel structure corridor 2 are carried out on the ground. The components can be hoisted by a truck crane, which is efficient and easy to ensure construction quality. Some components of the main frame of the high-rise steel structure corridor 1 are hoisted in the air, which can minimize the amount of high-altitude hoisting work and shorten the installation and construction cycle.

[0024] Example 2 This embodiment, based on Embodiment 1, provides a construction method for installing a 13-story steel structure connecting corridor (elevation +108.450m) and a 30-story steel structure connecting corridor (elevation +56.850m), wherein the 13-story and 30-story steel structure connecting corridors partially overlap in the vertical direction, as shown below. Figure 6 and Figure 7 As shown.

[0025] The specific construction methods include: Step S1: Install the lower-story prefabricated structure 4 and the higher-story prefabricated structure at the 13th floor and 30th floor positions on the shear wall, respectively; Step S2: Install the low-floor lifting platform 7 and the high-floor lifting platform 6 at the 15th floor and 32nd floor positions respectively, and install the hydraulic synchronous lifting system 5 on the high-floor lifting platform 6 and the low-floor lifting platform 7 respectively; Step S3: Assemble the main frame of the high-rise steel structure corridor 1 to be installed on the 30th floor, and pause after lifting it to 2 meters; Step S4: Assemble the steel structure connecting corridor 2 for installation on the lower level of the 13th floor; Step S5: Continue to raise the main frame of the high-rise steel structure corridor 1 to the specified height, connect it with the upper pre-installed structure, and install the components on the main frame of the high-rise steel structure corridor 1 that do not overlap with the low-rise steel structure corridor 2 in the vertical direction. Step S6: Raise the low-rise steel structure corridor 2 to the designated height and connect it with the pre-installed structure above; Step S7: Install the remaining components on the main frame of the high-rise steel structure corridor 1; to form a complete high-rise steel structure corridor 1.

[0026] Those skilled in the art will recognize that the embodiments described herein are intended to help the reader understand the principles of the invention and should be understood as not limiting the scope of protection of the invention to such specific statements and embodiments. Those skilled in the art can make various other specific modifications and combinations based on the technical teachings disclosed herein without departing from the spirit of the invention, and these modifications and combinations are still within the scope of protection of the invention.

Claims

1. A method for installing an irregularly shaped overlapping steel structure connecting corridor between buildings, characterized in that, Includes the following steps: Step S1: Install the high-rise prefabricated structure (3) and the low-rise prefabricated structure (4) at the corresponding positions on the shear wall. Step S2: Set up a high-rise lifting platform (6) and a low-rise lifting platform (7), and install a hydraulic synchronous lifting system (5) on the high-rise lifting platform (6) and the low-rise lifting platform (7) respectively. Step S3: Assemble the main frame of the high-rise steel structure corridor (1) and lift it to 2-4 meters before pausing; Step S4: Assemble the low-rise steel structure connecting corridor (2); Step S5: Continue to raise the main frame of the high-rise steel structure corridor (1) to the specified height, and install the components on the main frame of the high-rise steel structure corridor (1) that do not overlap with the low-rise steel structure corridor (2) in the vertical direction; Step S6: Raise the low-rise steel structure corridor (2) to the specified height; Step S7: Install the remaining components on the main frame of the high-rise steel structure corridor (1).

2. The installation and construction method for irregularly shaped overlapping steel structure connecting corridors between buildings according to claim 1, characterized in that, Step S3 includes: Step S301: Set up a pre-assembly support device for the steel structure corridor on the roof of the podium, and assemble the main frame of the high-rise steel structure corridor (1) directly below the projection plane of the installation position of the high-rise steel structure corridor (1). Step S302: Weld temporary lifting devices (53) onto the main frame of the high-rise steel structure corridor (1), and use the hydraulic synchronous lifting system (5) on the high-rise lifting platform (6) to lift the main frame of the high-rise steel structure corridor (1) by 2-4 meters and then pause.

3. The installation and construction method for the inter-building irregular overlapping steel structure corridor according to claim 2, characterized in that, Step S4 includes: Step S401: Assemble the main frame of the low-rise steel structure corridor (2) directly below the projection plane of the installation position of the low-rise steel structure corridor (2); Assemble the part of the low-rise steel structure corridor (2) and the high-rise steel structure corridor (1) that overlap in the vertical direction by using a tower crane to pass through the gap of the main frame of the high-rise steel structure corridor (1). Step S402: After assembly, install and weld the supplementary members on the main frame of the low-rise steel structure corridor (2); Step S403: Lay the floor decking and decorate it to form a complete low-rise steel structure corridor (2).

4. The installation and construction method for the inter-building irregular overlapping steel structure corridor according to claim 3, characterized in that, Step S5 includes: Step S501: Use the hydraulic synchronous lifting system (5) on the high-rise lifting platform (6) to continue lifting the main frame of the high-rise steel structure corridor (1) to the set height and connect it with the upper pre-installed structure. Step S502: Unload each lifting point of the hydraulic synchronous lifting system (5) on the high-rise lifting platform (6) in sequence, so that the self-weight of the main frame of the high-rise steel structure corridor (1) is transferred to the pre-installed structure and reaches the design state; Step S503: Install the supplementary members and floor decking on the main frame of the high-rise steel structure corridor (1) at the position that does not overlap with the low-rise steel structure corridor (2).

5. The installation and construction method for the inter-building irregular overlapping steel structure corridor according to claim 4, characterized in that, Step S6 includes: Step S601: Weld temporary lifting equipment (53) onto the low-rise steel structure corridor (2); Step S602: Use the hydraulic synchronous lifting system (5) on the low-level lifting platform (7) to lift the low-level steel structure corridor (2) to the specified height, so that the low-level steel structure corridor (2) is connected with the upper pre-installed structure to form a whole; Step S603: Unload the hydraulic synchronous lifting system (5) on the low-level lifting platform (7) so that the weight of the main frame of the low-level steel structure corridor (2) is transferred to the pre-installed structure.

6. The installation and construction method for the inter-building irregular overlapping steel structure corridor according to claim 5, characterized in that, Step S7 includes: Step S701: Install the supplementary members on the main frame of the high-rise steel structure corridor (1) at the position overlapping with the low-rise steel structure corridor (2), and weld them; Step S701: Lay the floor decking in the remaining empty areas and decorate it to form a complete high-rise steel structure corridor (1).

Images