Inter-building lifting corridor and use method thereof

Abstract

The present invention discloses an inter-building lifting corridor and a method for using the same, and relates to the technical field of building construction equipment, comprising a long-side corridor and a short-side corridor, wherein the short-side corridor is a plate-shaped structure, and the long-side corridor is a truss structure, and derricks are respectively provided on the left and right sides of the long-side corridor, and a column fixed on the building body is provided on the side of the derrick away from the long-side corridor, and the derrick is fixedly connected to the column; the beneficial effect is that during the construction process of the present invention, the corridor is assembled on an assembly frame at a projected position below the corridor, which has a low risk factor, is easy to operate, and has a high installation efficiency; the columns and the diagonal braces of the lifting frame are all connected to the building body by direct concrete pre-embedded method, and the use of this structure not only ensures on-site construction safety, but also reduces project costs and shortens the construction period; before the formal lifting, the corridor is lifted layer by layer and assembled from top to bottom, and then the formal lifting is carried out after the test is completed, which effectively controls the generation of dangerous factors and reduces safety risks during construction.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction equipment, and in particular to an inter-building lifting corridor and a use method thereof. Background Art

[0002] With the continuous development of cities in recent years, building structures have become increasingly diverse. To meet requirements for structural functionality and aesthetics, many owners have installed connecting structures between multiple towers to form multi-story connected buildings. These connected buildings typically utilize steel structures, often designed as steel corridors connecting two or more towers. This structure is characterized by heavy components, high deformation requirements, high installation precision, large cross-sectional dimensions, difficult component hoisting, high construction safety risks, and high quality standards.

[0003] Based on the characteristics of the steel frame corridor itself, the current main methods are to reserve steel frame corridor assembly positions between the towers, use a lifting platform for overall assembly, and a hydraulic lifter for synchronous lifting; or use a large tower crane to adopt a high-altitude bulk assembly method. The shortcomings of the current steel structure corridor construction methods on the market are as follows:

[0004] (1) During the construction process, the steel frame corridor assembly required the use of a large truck crane to move and operate on the first floor slab, and the floor slab's bearing capacity could not meet the requirements. If steel pipe racks were used as support measures, the cost would be high, the quality would be difficult to guarantee, and the subsequent demolition would be difficult to meet the owner's progress node requirements;

[0005] (2) After the steel frame corridor is assembled on the ground, it is lifted as a whole through an overlong lifting platform. The lifting process poses safety risks and reduces the overall lifting efficiency.

[0006] (3) Due to the presence of a decorative layer at the bottom of the steel frame corridor, construction is difficult, operation is difficult, there are safety risks, and the quality of the nodes is difficult to guarantee. Summary of the Invention

[0007] The purpose of the present invention is to provide an inter-floor lifting corridor and a method of using the same in order to solve the above problems.

[0008] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0009] A building lifting corridor and a method for using the same, comprising a long side corridor and a short side corridor, wherein the short side corridor is a plate-like structure, and the long side corridor is a truss structure. A derrick is provided on each of the left and right sides of the long side corridor, and a column fixed to the building is provided on the side of the derrick away from the long side corridor. The derrick is fixedly connected to the column. A lifting frame is fixedly installed on the upper end of the derrick, and a hoist is fixedly installed on the lifting frame. The movable end of the hoist is fixedly connected to the four corners of the long side corridor through a special steel strand. A rear-mounted rod is fixedly installed on the upper part of the derrick, and the rear-mounted rod corresponds to the shape of the two ends of the long side corridor; an assembling cradle is provided at the projected position below the long side corridor, and the two ends of the assembling cradle are fixedly connected to the derrick.

[0010] Preferably, the long side corridor is 4-5 stories high and welded up and down, and the short side corridor is 2-3 stories high.

[0011] Preferably: the lifting frame includes a triangular bracket, a connecting rod and a diagonal brace, the number of the triangular brackets is two, the two triangular brackets are fixedly connected by a connecting rod on the side close to the long side corridor, the triangular bracket is fixedly connected to the building body through a diagonal brace on the side away from the long side corridor, and the hoist is fixedly installed on the triangular bracket close to one end of the long side corridor.

[0012] The method for using the above-mentioned inter-building lifting corridor specifically includes the following steps:

[0013] Step S1: Analyze the on-site construction conditions and structural layout, and select the type and number of corridors based on multiple considerations, such as the safety of steel structure assembly, assembly efficiency, and the amount of temporary measures used for assembly;

[0014] Step S2: Arrange the assembly frame according to the vertical projection position of the long side corridor trusses and the distribution of the basement beams and columns, and install the well frame in the rear-mounted rod area;

[0015] Step S3: Assemble the trusses on the assembly frame, and install the post-installed rods to the pre-installed positions on the derrick in advance. The pre-installed positions of the post-installed rods are vertically offset from the corridor trusses to ensure that the post-installed rods do not affect the lifting of the long-side corridor trusses. After the long-side corridor trusses are hoisted to the designed elevation, they are installed in place using fall chains.

[0016] Step S4: After the trusses are assembled on the assembly frame, the hydraulic system is debugged and the lifting is attempted to be about 100 mm. Then, the lifting is paused and the elevation of each hanging point of the long side corridor truss is fine-tuned;

[0017] Step S5: placing it in the design posture, measuring and recording the maximum deformation of the long side corridor truss at the mid-span, and leaving it to stand for 12 hours;

[0018] Step S6: After the trial lifting is completed without any problems, the long side corridor truss is lifted as a whole to the design elevation, and the elevations of each hanging point of the long side corridor truss are slightly adjusted to make it in the design posture. The rear-installed rods are installed in place using the fall chain, and the temporary measures are removed to complete the installation of the roof steel structure.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. During the construction process of the present invention, the corridor is assembled on the assembly frame at the projection position below it, which has low risk factor, easy operation and high installation efficiency;

[0021] 2. The columns and diagonal braces of the lifting frame of the present invention are directly connected to the building body by pre-embedded concrete. This structure not only ensures on-site construction safety, but also reduces project costs and shortens the construction period.

[0022] 3. The present invention lifts the corridor layer by layer and assembles it from top to bottom before formal lifting, and then conducts formal lifting after completing the test, which effectively controls the generation of dangerous factors and reduces safety risks during construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of an inter-building lifting corridor described in the present invention.

[0025] Figure 2 It is a schematic diagram of the three-dimensional structure of the long side corridor of the inter-building lifting corridor described in the present invention.

[0026] Figure 3 It is a main view of the long side corridor of the inter-building lifting corridor described in the present invention.

[0027] Figure 4 It is a schematic diagram of the three-dimensional structure of the derrick of the inter-building lifting corridor described in the present invention.

[0028] Figure 5 It is a schematic diagram of the three-dimensional structure of an assembled frame of an inter-building lifting corridor described in the present invention.

[0029] Figure 6 It is a schematic diagram of the three-dimensional structure of a lifting frame of an inter-building lifting corridor described in the present invention.

[0030] The following are the descriptions of the reference numerals:

[0031] 1. Long side corridor; 2. Derrick; 3. Column; 4. Lifting frame; 41. Triangular bracket; 42. Connecting rod; 43. Diagonal brace; 5. Short side corridor; 6. Rear-mounted rod; 7. Assembly frame; 8. Building. DETAILED DESCRIPTION

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood based on specific circumstances.

[0034] The present invention will be further described below in conjunction with the accompanying drawings:

[0035] like Figure 1As shown, an inter-building lifting corridor and a method for using the same include a long side corridor 1 and a short side corridor. The short side corridor is a plate-like structure that meets usage requirements, simplifies the structure, and reduces costs. The long side corridor 1 is a truss structure that meets the support strength of long-span steel structures. A derrick 2 is provided on the left and right sides of the long side corridor 1, respectively. The derrick 2 is used to support and lift. A column 3 fixed to a building 8 is provided on the side of the derrick 2 away from the long side corridor 1. The column 3 is used for support. The derrick 2 is fixedly connected to the column 3. A lifting frame 4 is fixedly installed on the upper end of the derrick 2, and a hoist is fixedly installed on the lifting frame 4. The hoist is used to lift the corridor. The hoist is an XY-TS type hydraulic lifter. The movable end of the hoist is fixedly connected to the four corners of the long side corridor 1 through a special steel strand. A rear-mounted rod 6 is fixedly installed on the upper part of the derrick 2. The rear-mounted rod 6 is used to ensure that the corridor can be lifted and lowered at the same time It is quickly docked with the building 8, and the rear-installed rods 6 correspond to the shapes of the two ends of the long side corridor 1; an assembly tire frame 7 is provided at the projection position below the long side corridor 1, and the assembly tire frame 7 is used to increase the support strength of the site, and the two ends of the assembly tire frame 7 are fixedly connected to the derrick 2; the long side corridor 1 is 4-5 stories and welded up and down, and the short side corridor is 2-3 stories; the lifting frame 4 includes a triangular bracket 41, a connecting rod 42 and a diagonal brace 43, and the number of the triangular brackets 41 is two. The two triangular brackets 41 are fixedly connected by a connecting rod 42 on the side close to the long side corridor 1, and the triangular bracket 41 is fixedly connected to the building 8 by a diagonal brace 43 on the side away from the long side corridor 1. The columns 3 and the diagonal braces 43 of the lifting frame 4 are directly connected to the building in a concrete pre-embedded manner, which increases the load-bearing capacity of the triangular bracket 41 supporting the lifting, and the triangular bracket 41 is fixedly installed with a hoist at one end of the long side corridor 1.

[0036] As for the above-mentioned method of using an inter-building lifting corridor, the specific process is as follows (taking the long side corridor 1 as an example):

[0037] (1) First, assemble the trusses of the long side corridor 1 into an integral lifting unit using the assembly frame 7 directly below its installation position;

[0038] (2) Using the concrete structure to set up lifting frames 4, a total of 4 groups are set up, and each group is equipped with one XY-TS-type hydraulic lifter according to each reaction force, a total of 4 units;

[0039] (3) Install hydraulic synchronous lifting system equipment on the lifting frame 4, including lifters, sensors, etc.;

[0040] (4) Temporary measures such as temporary lifting equipment and temporary rods for lifting the lower lifting point are installed at the position corresponding to the lifting unit and the upper lifting point;

[0041] (5) Install special bottom anchors and special steel strands between the upper and lower lifting points;

[0042] (6) Debug the hydraulic synchronous lifting system;

[0043] (7) Check whether the lifting unit and all temporary measures for hydraulic synchronous lifting meet the design requirements;

[0044] (8) After confirmation, start trial lifting;

[0045] (9) Load the unit step by step in the order of 20%, 40%, 60%, 70%, 80%, 90%, 95% and 100% of the design load until the lifting unit is separated from the assembly platform;

[0046] (10) When the lowest point of the lifting unit is about 100 mm away from the tire frame, stop lifting;

[0047] (11) Fine-tune the elevation of each lifting point of the lifting unit to make it in the design posture, measure the maximum deformation of the lifting unit at the mid-span and record it, and let it stand for 2 to 24 hours;

[0048] (12) Recheck whether there are any abnormalities in the steel structure lifting unit and the temporary hydraulic synchronous lifting measures, and compare the measured data with the data when it was off the ground;

[0049] (13) After confirming that there are no abnormalities, formal promotion begins;

[0050] (14) After the lifting unit is lifted to approximately 10.2 m, the lifting is suspended;

[0051] (15) Start installing the remaining trusses to complete the whole;

[0052] (16) Debug the hydraulic synchronous lifting system;

[0053] (17) Check whether the lifting unit and all temporary measures for hydraulic synchronous lifting meet the design requirements;

[0054] (18) After confirmation, start trial lifting;

[0055] (19) Load the unit step by step in the order of 20%, 40%, 60%, 70%, 80%, 90%, 95% and 100% of the design load until the lifting unit is separated from the assembly platform;

[0056] (20) When the lowest point of the lifting unit is about 100 mm away from the tire frame, stop lifting;

[0057] (21) Fine-tune the elevation of each lifting point of the lifting unit to make it in the design posture, measure the maximum deformation of the lifting unit at the mid-span and record it, and let it stand for 2 to 24 hours;

[0058] (22) Recheck whether there are any abnormalities in the roof steel structure lifting unit and the temporary hydraulic synchronous lifting measures, and compare the measured data with the data when it was off the ground;

[0059] (23) After confirming that there are no abnormalities, formal promotion begins;

[0060] (24) When the lifting unit is lifted to about 1000mm from the design elevation, stop lifting;

[0061] (25) Measure the actual elevation of each lifting point and compare it with the design elevation, and keep a record as a basis for further lifting;

[0062] (26) Reduce the speed of hydraulic synchronous lifting and use the "fine-tuning and inching" function of the hydraulic synchronous lifting computer control system to make each lifting point slowly reach the design elevation in turn to meet the installation requirements;

[0063] (27) Install the rear rod 6 and other components to form a complete force-bearing system;

[0064] (28) The hydraulic synchronous lifting system shall be unloaded in stages in the order of 95%, 90%, 80%, 70%, 60%, 50%, 40%, 30% and 20% until the steel strands are relaxed and the load of the steel structure is fully transferred to the steel columns;

[0065] (29) Dismantle the hydraulic lifting system and temporary measures, and complete the lifting operation of the long side corridor 1;

[0066] (30) Complete the lifting of the remaining lifting units according to the above method.

[0067] The long side corridor 1, derrick 2, column 3, short side corridor 5, and rear-mounted rod 6 are all universal standard parts or components known to those skilled in the art. Their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods, so they will not be described in detail here.

[0068] The basic principles, main features and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may be subject to various changes and improvements, and these changes and improvements shall fall within the scope of the invention claimed for protection.

Claims

1. An inter-building lifting corridor, comprising a long side corridor (1) and a short side corridor, characterized in that: The short side corridor is a plate-like structure, and the long side corridor (1) is a truss structure. A derrick (2) is provided on the left and right sides of the long side corridor (1), and a column (3) fixed on the building (8) is provided on the side of the derrick (2) away from the long side corridor (1). The derrick (2) is fixedly connected to the column (3). A lifting frame (4) is fixedly installed on the upper end of the derrick (2), and a hoist is fixedly installed on the lifting frame (4). The movable end of the hoist is fixedly connected to the four corners of the long side corridor (1) through a special steel strand. A rear-mounted rod (6) is fixedly installed on the upper part of the derrick (2), and the rear-mounted rod (6) corresponds to the shape of the two ends of the long side corridor (1); an assembling frame (7) is provided at the projection position below the long side corridor (1), and the two ends of the assembling frame (7) are fixedly connected to the derrick (2).

2. The inter-building lifting corridor according to claim 1, characterized in that: The long side corridor (1) is 4-5 stories high and is welded up and down, and the short side corridor is 2-3 stories high.

3. The inter-building lifting corridor according to claim 1, characterized in that: The lifting frame (4) includes a triangular bracket (41), a connecting rod (42) and a diagonal brace (43). The number of the triangular brackets (41) is two. The two triangular brackets (41) are fixedly connected by a connecting rod (42) on the side close to the long side corridor (1). The triangular bracket (41) is fixedly connected to the building (8) on the side away from the long side corridor (1) through a diagonal brace (43). The hoist is fixedly installed on one end of the triangular bracket (41) close to the long side corridor (1).

4. The method for using the inter-building lifting corridor according to any one of claims 1 to 3, characterized in that: The specific steps include: Step S1: Analyze the on-site construction conditions and structural layout, and select the type and number of corridors based on the safety of steel structure assembly, assembly efficiency, and the amount of temporary measures required for assembly; Step S2: Arrange the assembly frame (7) according to the vertical projection position of the trusses of the long side corridor (1) and the distribution of the beams and columns of the basement, and install the well frame (2) in the area of ​​the rear-mounted rods (6); Step S3: Assemble the trusses on the assembly frame (7), and install the rear-mounted rods (6) to the pre-installed position on the derrick (2) in advance. The pre-installed position of the rear-mounted rods (6) and the corridor trusses are offset in the vertical direction to ensure that the rear-mounted rods (6) do not affect the lifting of the long side corridor (1) trusses. After the long side corridor (1) trusses are lifted to the design elevation as a whole, they are installed in place using a fall chain. Step S4: Complete the truss assembly on the assembly frame (7), debug the hydraulic system, and after a trial lift of 100 mm, pause the lift and fine-tune the elevation of each hanging point of the long side corridor (1) truss; Step S5: put it in the design posture, measure and record the maximum deformation of the truss at the mid-span of the long side corridor (1), and let it stand for 12 hours; Step S6: After the trial lifting is completed without any problems, the long side corridor (1) truss is lifted as a whole to the design elevation, and the elevations of the various hanging points of the long side corridor (1) truss are slightly adjusted to make it in the design posture. The rear-mounted rod (6) is installed in place using a fall chain, and the temporary measures are removed to complete the installation of the roof steel structure.

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