Wall-crossing tower crane mounting structure and construction method thereof

Abstract

The invention discloses a wall-crossing tower crane mounting structure and a construction method thereof.The construction method of the wall-crossing tower crane mounting structure comprises the steps that two vertical frame bodies are provided, a plurality of wall penetrating sleeves with the length equal to the thickness of a to-be-spanned wall are provided, and a plurality of half transverse rods arranged in the height direction of the vertical frame bodies at intervals are fixedly mounted on each vertical frame body; the half transverse rods on the two vertical frame bodies are made to be opposite in pairs to form a plurality of pairs of half transverse rods, and the two half transverse rods in each pair of half transverse rods are detachably connected in a butt joint mode to form a plurality of first transverse rods; according to the non-standard transition joint of the tower crane, the problem of cross-wall arrangement of the tower crane in a narrow and small space is solved, the cost of later plate repairing and large-scale machine dismantling is avoided, the cost is saved, the arrangement flexibility of the tower crane is improved, and the construction period is shortened. And the dismantling safety risk is reduced, the construction efficiency is improved, and the high popularization value is achieved.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and in particular to a cross-wall tower crane installation structure and its construction method. Background Technology

[0002] In building construction, tower cranes are key lifting equipment for horizontal and vertical transportation, but their installation location is often limited by factors such as structural space and collision. Generally, tower cranes are set up in the foundation pit before basement construction, and in high-rise buildings, tower cranes usually need to be attached to the tower wall, requiring them to be placed close to the tower.

[0003] The second phase of a hospital construction project has a total land area of ​​27,601 square meters. 2 The total building area is 182,884.18 m². 2 The project includes a 19-story outpatient and inpatient building, three 13-story elderly care and rehabilitation buildings (A, B, and C), with the tallest building reaching 90.9 meters in height, and three basement levels. According to the overall construction layout, a total of five construction tower cranes are planned, one of which needs to be installed across the basement exterior wall. If the traditional method of simultaneously constructing and pouring the tower crane and wall together is used, or if a pre-existing structural wall is reserved for later pouring after the tower crane is dismantled, both methods would present problems such as tower crane swaying affecting structural safety, inconvenience during dismantling, and potential wall damage leading to water seepage. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies, this invention provides a tower crane installation structure and construction method that spans walls. By designing a non-standard transition section for the tower crane and a matching construction method, the problem of setting up a tower crane across walls is cleverly solved, achieving the effect of setting up a tower crane across walls without affecting the use of the tower crane and the waterproofing of the external wall.

[0005] To achieve the above objectives, the present invention provides a construction method for a cross-wall tower crane installation structure, comprising the following steps:

[0006] Two vertical frames are provided, and multiple semi-horizontal bars are fixedly installed on each vertical frame at intervals along the height direction of the vertical frame, so that the semi-horizontal bars on the two vertical frames are opposite each other to form multiple pairs of semi-horizontal bars, and two semi-horizontal bars in each pair of semi-horizontal bars are detachably connected to form multiple first horizontal bars;

[0007] Provide multiple through-wall sleeves with a length equal to the thickness of the wall to be crossed, and fit the multiple through-wall sleeves one by one onto the multiple first horizontal bars at the joint positions of the corresponding two half horizontal bars, thereby forming a non-standard transition section for the tower crane;

[0008] Two sets of outrigger supports are pre-embedded in the soil within the foundation area of ​​the tower crane, so that the two sets of outrigger supports are located on the two opposite outer sides of the wall to be spanned, and the two vertical frames in the non-standard transition section of the tower crane are installed on the top of the two sets of outrigger supports one by one.

[0009] At least one tie rod is installed at the top of at least one vertical frame to achieve anti-tipping reinforcement;

[0010] Pour the tower crane foundation and tie the reinforcing steel bars for the wall to be spanned;

[0011] The wall to be spanned is poured. After the wall to be spanned is poured, several first horizontal bars and two vertical frames are removed. The openings of the through-wall sleeves are then filled with water and waterproofed, thus completing the construction of the wall-spanning tower crane installation structure.

[0012] Preferably, when two vertical frames are provided, the vertical frames include:

[0013] Two uprights spaced apart;

[0014] Multiple second crossbars are fixed at intervals between the two uprights along the height direction;

[0015] Multiple diagonal braces are fixedly connected between each pair of adjacent second horizontal bars, and the two ends of each diagonal brace are fixedly connected to the two vertical bars respectively.

[0016] Preferably, after joining two half-crossbars in each pair to form multiple first crossbars, a first armhole plate is fixed at the connection point between each first crossbar and the corresponding upright in the vertical frame.

[0017] Preferably, when two sets of outrigger supports are pre-embedded in the soil within the foundation area of ​​the tower crane, each set of outrigger supports includes two outrigger support bodies respectively supported at the bottom of two uprights in the corresponding vertical frame, and each outrigger support body includes:

[0018] The system includes a support wing plate embedded in the soil, another support wing plate for supporting the bottom of the corresponding upright, at least two connecting web members fixedly connected between the two support wing plates, and at least one set of reinforcement members connected between each pair of adjacent connecting web members, with each set of reinforcement members including multiple reinforcing rods spaced vertically.

[0019] Preferably, when two half-crossbars in each pair of half-crossbars are detachably connected to form multiple first crossbars, flange bolts are used to connect the two half-crossbars in each pair of half-crossbars.

[0020] Preferably, the outer side of the wall to be crossed is provided with foundation pit support piles. When at least one tie member is provided on the top of at least one vertical frame to achieve anti-overturning reinforcement, a tie member is provided on the vertical frame located on the outer side of the wall to be crossed at the position corresponding to the waist beam of the support pile, and one end of the tie member is fixedly connected to the vertical frame and the other end is fixedly connected to the waist beam of the support pile.

[0021] Preferably, when tying the reinforcing bars of the wall to be spanned, the position of the through-wall sleeves is adjusted so that each through-wall sleeve is symmetrically arranged relative to the vertical reinforcing bars of the two adjacent walls, the sleeve opening is flush with the wall surface of the wall to be spanned, and each first horizontal bar is located on the central axis of the corresponding through-wall sleeve, thereby achieving the positioning of the through-wall sleeves.

[0022] Preferably, when tying the reinforcing bars of the wall to be spanned, the through-wall sleeve is reinforced, and the reinforcement methods include:

[0023] Two horizontal reinforcing bars are fixedly installed between the two vertical reinforcing bars of the wall on both sides of each through-wall sleeve, and the two horizontal reinforcing bars are fixed to the top and bottom of the corresponding through-wall sleeve respectively;

[0024] Diagonal reinforcing bars are fixed along the tangent on both sides of each through-wall sleeve, and the two diagonal reinforcing bars are fixed between the vertical reinforcing bars and the horizontal reinforcing bars of each adjacent wall, respectively.

[0025] Preferably, when repairing and waterproofing the opening of the wall sleeve, the repair and waterproofing methods include the following:

[0026] Provide a sealing steel plate and fix the sealing steel plate to the through-wall sleeve opening located on one side of the outer side of the wall;

[0027] Pour concrete of the same strength as the wall concrete into the through-wall sleeve;

[0028] Provide another sealing steel plate and fix it to the through-wall sleeve opening located on one side of the inner side of the wall.

[0029] A wall-crossing tower crane installation structure is constructed using the aforementioned construction method. The wall-crossing tower crane installation structure includes:

[0030] The wall to be crossed;

[0031] The tower crane foundation is poured into the foundation soil at the bottom of the wall to be crossed;

[0032] Two sets of outrigger supports are pre-embedded within the tower crane foundation area and are respectively located on two opposite outer sides of the wall to be crossed;

[0033] The non-standard transition section of the tower crane includes two vertical frames that are installed one-to-one on the top of the two sets of support legs, and multiple pairs of semi-horizontal bars that are fixed between the two vertical frames. Each pair of semi-horizontal bars is detachably connected to form a first horizontal bar. At the connection position between each first horizontal bar and the corresponding two semi-horizontal bars, a through-wall sleeve is provided that penetrates the wall to be crossed. The length of the through-wall sleeve is equal to the thickness of the wall to be crossed.

[0034] At least one tie member is provided at the top of at least one of the vertical frames.

[0035] By adopting the above technical solution, the present invention has the following beneficial effects:

[0036] 1) The diagonal bars perpendicular to the wall surface of the transition section were eliminated. The strength was ensured by adding a haunch plate, and the impact of the bars penetrating the wall on the wall was reduced. The through-wall horizontal bars were equipped with movable water-stop steel sleeves to prevent the tower crane from contacting the wall and to prevent swaying from affecting the structure and causing wall leakage.

[0037] 2) Non-standard transition sections and support legs are prefabricated in the factory, making on-site installation convenient and not affecting structural construction. The first horizontal bar and vertical bar through the wall are connected by flange bolts, enabling the components to be disassembled and reused, thus reducing costs.

[0038] 3) It solves the problem of setting up tower cranes across walls in confined spaces, avoids the cost of later plate repairs and large machinery dismantling, saves costs, improves the flexibility of tower crane setup, reduces dismantling safety risks, and improves construction efficiency. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 This is a cross-sectional schematic diagram of the wall-crossing tower crane installation structure in an embodiment of the present invention.

[0041] Figure 2 This is a first sectional view of the non-standard transition section of the tower crane in an embodiment of the present invention.

[0042] Figure 3 This is a second sectional view of the non-standard transition section of the tower crane in an embodiment of the present invention.

[0043] Figure 4 This is a frontal view of the support leg bracket body in an embodiment of the present invention.

[0044] Figure 5 yes Figure 4Section 1-1 in the diagram.

[0045] Figure 6 This is a detailed installation diagram of the tie member when the wall to be crossed is adjacent to the foundation pit support pile in an embodiment of the present invention.

[0046] Figure 7 This is a detailed drawing of the tower crane through-wall sleeve positioning and reinforcement in an embodiment of the present invention.

[0047] Figure 8 This is a process flow diagram of the construction method for the cross-wall tower crane installation structure in an embodiment of the present invention.

[0048] The correspondence between the numbers in the attached diagram is as follows:

[0049] 1- Wall to be spanned; 2- Support pile; 21- Support pile waist beam; 3- Tower crane foundation; 4- Reserved sleeve; 51- First horizontal bar; 511- Half horizontal bar; 52- Flange bolt; 53- Through-wall sleeve; 54- Vertical frame; 541- Upright; 542- Second horizontal bar; 543- Diagonal bar; 544- Upright support leg; 551- First armhole plate; 552- Second armhole plate; 56- Waterstop steel plate; 6- Support leg bracket body; 61- Support wing plate; 62- Connecting web member; 63- Reinforcing bar; 71- Hoop; 72- Channel steel; 73- Fixing bolt; 8- Filler; 9- Vertical reinforcement of the wall; 10- Horizontal reinforcement; 11- Diagonal reinforcement. Detailed Implementation

[0050] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding the present invention, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0051] Please see Figures 1 to 8 As shown in the figure, this embodiment of the invention provides a construction method for a tower crane installation structure spanning a wall, including the following steps:

[0052] Two vertical frames 54 are provided, and a plurality of semi-horizontal bars 511 are fixedly installed on each vertical frame 54 at intervals along the height direction of the vertical frame 54, so that the semi-horizontal bars 511 on the two vertical frames 54 are opposite each other to form multiple pairs of semi-horizontal bars 511, and two semi-horizontal bars 511 in each pair of semi-horizontal bars 511 are detachably connected to form a plurality of first horizontal bars 51;

[0053] Provide multiple through-wall sleeves 53 with a length equal to the thickness of the wall to be crossed, and fit the multiple through-wall sleeves 53 one by one onto the multiple first crossbars 51 at the joint position of the corresponding two half crossbars 511, thereby forming a non-standard transition section for the tower crane.

[0054] Two sets of outrigger supports are pre-embedded in the soil within the range of the tower crane foundation 3, so that the two sets of outrigger supports are located on the two opposite outer sides of the wall 1 to be spanned, and the two vertical frames 54 in the non-standard transition section of the tower crane are installed on the top of the two sets of outrigger supports in a one-to-one correspondence.

[0055] At least one tie member is provided at the top of at least one vertical frame 54 to achieve anti-overturning reinforcement;

[0056] Pour the tower crane foundation 3 and tie the reinforcing steel bars of the wall to be spanned 1.

[0057] The wall to be spanned 1 is poured. After the wall to be spanned is poured, multiple first horizontal bars and two vertical frames are removed. The opening of the through sleeve 53 is then filled with water and waterproofed, thus completing the construction of the tower crane installation structure across the wall.

[0058] Please see Figures 1 to 3 As shown, in this embodiment, flange bolts 52 are used to detachably connect two half-horizontal bars 511 in each pair of half-horizontal bars 511. When dismantling the tower crane, the two half-horizontal bars 511 can be separated simply by loosening the flange bolts 52, and the first horizontal bar 51 can be removed. Preferably, after detachably connecting two half-horizontal bars 511 in each pair of half-horizontal bars 511 to form multiple first horizontal bars 51, a first armhole plate 551 is fixed at the connection point between each first horizontal bar 51 and the corresponding vertical column 541 in the vertical frame 54.

[0059] Furthermore, when providing two vertical frames, each vertical frame includes two spaced-apart uprights 541, multiple second horizontal bars 542, and multiple diagonal bars 543. The multiple second horizontal bars 542 are fixedly spaced between the two uprights 541 along the height direction. The multiple diagonal bars 543 are respectively fixedly connected between each pair of adjacent second horizontal bars 542, and both ends of each diagonal bar 543 are fixedly connected to the two uprights 541. Each second horizontal bar 542 is fixedly connected to its corresponding upright 541 with a second armhole plate 552. It should be noted that in this embodiment, two upright legs 544 are fixedly installed at the bottom of each of the two uprights 541. Furthermore, in this embodiment, when providing multiple through-wall sleeves 53 with a length equal to the thickness of the wall to be spanned 1, a water-stop steel plate 56 is fixedly installed on the outer periphery of the middle part of each through-wall sleeve 53.

[0060] Please see Figure 1 , Figure 4 and Figure 5As shown, when two sets of outrigger supports are pre-embedded in the soil within the range of the tower crane foundation 1, each set of outrigger supports includes two outrigger support bodies 6 respectively supported at the bottom of the uprights 541 in the corresponding vertical frame 34 (in this embodiment, they are set at the bottom of the two upright outriggers 544). Each outrigger support body 6 includes a support wing plate 61 pre-embedded in the soil, another support wing plate 61 for supporting the bottom of the corresponding upright 541, at least two connecting web members 62 fixedly connected between the two support wing plates 61, and at least one set of reinforcing members connected between each pair of adjacent connecting web members 62. Each set of reinforcing members includes multiple reinforcing rods 63 arranged vertically at intervals. It should be noted that in this embodiment, four outrigger support bodies 6 are provided for the four upright outriggers 544 corresponding to the non-standard transition section.

[0061] Please see Figure 1 and Figure 6 As shown, a foundation pit support pile 2 is provided on the outer side of the wall 1 to be crossed. When at least one tie member is provided on the top of at least one vertical frame 54 to achieve anti-overturning reinforcement, a tie member is provided on the vertical frame 54 located on the outer side of the wall 1 to be crossed at the position corresponding to the support pile waist beam 21, and one end of the tie member is fixedly connected to the vertical frame 54, and the other end is fixedly connected to the support pile waist beam 21. It is necessary to note that in this embodiment, in order to prevent the transition section from overturning, the uprights 541 in the vertical frame 54 on the side near the support pile 2 are rigidly connected with clamps 71 (with rubber pads on the inside), and welded to the clamps 71 with a suitable length of No. 5 channel steel 72 (i.e., tie piece). The other end of the channel steel 72 is fixed to the waist beam 21 of the support pile by fixing bolts 73. The fixing bolts 73 are M8×80 expansion bolts and can only be removed after the concrete strength of the tower crane foundation reaches 80% after pouring. If there are no temporary attachments near the non-standard transition section, guy ropes are used to hold the upper four corners of the non-standard transition section and tie them firmly.

[0062] Please see Figure 1 and Figure 7 As shown, when tying the reinforcing bars of the wall 1 to be spanned, the position of the through-wall sleeves 3 is adjusted so that each through-wall sleeve 3 is symmetrically arranged relative to the vertical reinforcing bars 9 of the two adjacent walls, the opening of the sleeve is flush with the wall surface of the wall 1 to be spanned, and each first horizontal bar 51 is located on the central axis of the corresponding through-wall sleeve 53, thereby achieving the positioning of the through-wall sleeve 53. Preferably, when tying the reinforcing bars of the wall 1 to be spanned, the through-wall sleeves 53 also need to be reinforced. The reinforcement methods include:

[0063] Two horizontal reinforcing bars 10 are fixedly installed between the two vertical reinforcing bars 9 on both sides of each through-wall sleeve 53, and the two horizontal reinforcing bars 10 are fixed to the top and bottom of the corresponding through-wall sleeve 53 respectively.

[0064] Diagonal reinforcing bars 11 are fixedly installed along the tangent on both sides of each through-wall sleeve 53, such that the two diagonal reinforcing bars 11 are fixed between each adjacent vertical reinforcing bar 9 and horizontal reinforcing bar 10 of the wall. It should be noted that in this embodiment, the diameter of the first horizontal bar 51 is 100mm, the inner diameter of the through-wall sleeve 53 is 219mm, the thickness is 8mm, and the length is 500mm, which is the same as the thickness of the wall 1 to be crossed. The horizontal reinforcing bars 10 are φ16 steel bars, which are installed on both the inner and outer sides of the wall 1 to be crossed. All steel bars are connected by full welding. After the through-wall sleeve 53 is positioned and reinforced, foam board is filled into the inside of the through-wall sleeve 53 as filler material 8 and then the formwork is sealed.

[0065] Please see Figure 1 , Figure 7 and Figure 8 As shown, when repairing and waterproofing the opening of the through-wall sleeve 53, the repair and waterproofing methods include the following:

[0066] Provide a sealing steel plate and fix the sealing steel plate to the through-wall sleeve 53 opening located on the outer side of the wall;

[0067] Pour concrete of the same strength as the wall concrete into the through-wall sleeve 53, and ensure that the concrete is compacted.

[0068] Another sealing steel plate is provided and fixedly connected to the through-wall sleeve 53 opening located on one side of the inner side of the wall. It should be noted that in this embodiment, the sealing steel plate is made of 3mm thick Q235 steel plate cut into a circle with a diameter of 219mm. After the waterproof repair of the wall is covered, it does not affect the overall waterproof performance.

[0069] The specific construction process is as follows: construction preparation → design and fabrication of non-standard transition sections → processing and fabrication of outrigger supports → quality inspection and acceptance of non-standard transition sections and outrigger supports → measurement and positioning (outrigger support locations) → pre-embedded reinforcement of outrigger supports → binding of bottom layer reinforcement of tower crane foundation → hoisting of non-standard transition sections → leveling of non-standard transition sections → anti-overturning reinforcement of non-standard transition sections → binding of surface layer reinforcement of tower crane foundation → concrete pouring of tower crane foundation → binding of reinforcement of the wall to be spanned → positioning and reinforcement of through-wall sleeves → formwork erection of the wall to be spanned → concrete pouring of the wall to be spanned → filling and waterproofing of through-wall sleeve openings. The following key operational points are included during construction:

[0070] I. Design and fabrication of non-standard transition sections for tower cranes

[0071] 1) Non-standard transition section components for tower crane wall penetration: Referring to the tower crane frame, a non-standard transition section skeleton is welded using Q335B steel. The height of each section is determined based on the floor height, ensuring the horizontal bars are staggered from the floor slab. Diagonal bars perpendicular to the wall are eliminated, ensuring only vertical components pass through the wall. A pre-installed sleeve 4 is provided on the building floor slab for the vertical pole 541 to pass through. The first horizontal bar 51 penetrating the wall is broken in the middle to form a pair of half-horizontal bars 511. Each pair of half-horizontal bars 511 is detachably connected using flange bolts 52. The strength of the transition section is ensured by adding a haunch steel plate at the junction of the vertical and horizontal bars. The stress on the non-standard transition section has been calculated and meets the strength requirements.

[0072] 2) Through-wall sleeve: A hollow cylindrical movable steel sleeve made of Q335B steel is set on the outside of the first horizontal bar 51. The length of the sleeve is the same as the thickness of the wall. The sleeve can be directly sealed with the wall template, which is convenient and quick to construct and does not affect the wall pouring. It also ensures that the non-standard transition section horizontal bar does not contact the wall. A water-stop steel plate 56 is welded around the outer ring of the middle of the sleeve. After the sleeve is poured into the wall, it plays a role in preventing the wall at the sleeve position from seeping.

[0073] II. Outrigger bracket processing and manufacturing.

[0074] The height of the outrigger support is determined based on the thickness of the tower crane foundation and the height of the non-standard transition section support leg 541 through the wall. The outrigger support body 6 adopts the form of a lattice column, welded from ∠50×50×5 (section width × height × thickness) angle steel (i.e., connecting web member 62), with a Q235 square steel plate (i.e., supporting wing plate 61) set at the top and bottom. The stress on the outrigger support has been calculated to ensure that the strength meets the requirements. The axial force of a single outrigger is calculated based on the actual load. The stability of the lattice column, the slenderness ratio of the branches, etc., all need to be verified.

[0075] III. Measurement and Positioning and Outrigger Bracket Pre-embedding

[0076] Once the concrete of the tower crane foundation pad reaches a strength of 30% or more, foundation layout can begin. First, use a total station to project the tower crane foundation positioning axis onto the pad and mark it with ink. Then, measure the foundation edge lines according to the design dimensions of the tower crane foundation and mark them with ink. Next, based on the location of the non-standard transition section through the wall in the foundation, mark the center points of the four outrigger support bodies 6 of the non-standard transition section and mark them with steel nails. Finally, notify the technical supervisor to verify the lines. Align the center points of the four outrigger support bodies 6 with the four steel nail positions and align them with the tower crane foundation edge lines. Use a total station to verify the elevation of the outrigger support bodies 6 for initial adjustment. After adjustment, use ∠50×50×5 (section width × height × thickness) angle steel to weld the four outrigger support bodies 6 together on both sides.

[0077] IV. Lifting and Leveling of Non-standard Transition Sections for Tower Cranes

[0078] After the foundation slab reinforcement is installed, a suitable truck crane is selected based on the self-weight of the non-standard transition section through the wall and the position of the truck crane. In this embodiment, an 80t truck crane with a main boom extension of 32.63m and a rated lifting capacity of 21.5t is selected. The non-standard transition section is hoisted at the top of the pit on the south side. The slings (the specifications of the slings are: 6×37S+FC-1770-22 (GB / T 8918-2006)) are fixed in the pin holes at the four corners of the upper part of the non-standard transition section with shackles. The section is then slowly lifted and lowered into the foundation, ensuring that the upright support leg 544 rests on the corresponding support bracket body 6.

[0079] Using the upper end of the main chord as a reference, measure the levelness of the non-standard transition section of the tower crane penetrating the wall, and adjust it with thin steel sheets of appropriate thickness to ensure that the levelness is no greater than 1 / 1000 of the cross-section of the transition section. After adjustment, use C25 steel bars to firmly connect and weld the upright leg 544 to the bottom layer of steel bars. Diagonal bracing bars are arranged on the four sides of the upright leg 544, with no less than two bars on each side. The connection angle between the diagonal bracing bars and the upright leg 544 should be between 30° and 60°.

[0080] V. Anti-overturning reinforcement and concrete pouring

[0081] After the tower crane foundation reinforcement is tied, and the lightning protection grounding and construction joint waterstop steel plates are pre-embedded, a 5cm-10cm thick cement mortar layer with the same mix ratio as the concrete is poured first to ensure the joint is compacted. Then, concrete with the required strength and impermeability grade is poured. The concrete pouring should be carried out in sections and layers. The pouring height of each layer should be determined according to the structural characteristics and the density of the reinforcement. Generally, the layer height is 1.25 times the length of the vibrating part of the insert vibrator, and the maximum should not exceed 500mm. The center point of the concrete pouring surface of the tower crane foundation should be slightly higher than the surrounding area. While meeting the flatness requirements, a slope should be made around the perimeter to avoid water accumulation at the 544 position of the fixed support legs.

[0082] This invention also provides a cross-wall tower crane installation structure, constructed using the aforementioned cross-wall tower crane installation structure construction method. The cross-wall tower crane installation structure includes a wall to be crossed 1, a tower crane foundation 3, two sets of outrigger supports, a non-standard tower crane transition section, and at least one tie member. The tower crane foundation 3 is cast into the foundation soil at the bottom of the wall to be crossed 1. The two sets of outrigger supports are embedded within the tower crane foundation 3 and located on opposite outer sides of the wall to be crossed 1. The non-standard tower crane transition section includes two vertical frames 54 correspondingly installed on the top of the two sets of outrigger supports, and multiple pairs of half-horizontal bars 511 relatively fixed between the two vertical frames 54. Each pair of half-horizontal bars 511 is detachably connected to form a first horizontal bar 51. Each first horizontal bar 51 has a through-wall sleeve 53 at the connection point with the corresponding two half-horizontal bars 511, the length of which is equal to the thickness of the wall to be crossed 1. At least one tie member is located on the top of at least one vertical frame 54. It should be noted that the two half-crossbars 511 in each pair of half-crossbars 511 are detachably connected using flange bolts 52.

[0083] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and these variations still fall within the protection scope of the present invention.

Claims

1. A construction method for a cross-wall tower crane installation structure, characterized in that, Includes the following steps: Two vertical frames are provided, and multiple semi-horizontal bars are fixedly installed on each vertical frame at intervals along the height direction of the vertical frame, so that the semi-horizontal bars on the two vertical frames are opposite each other to form multiple pairs of semi-horizontal bars, and two semi-horizontal bars in each pair of semi-horizontal bars are detachably connected to form multiple first horizontal bars; Provide multiple through-wall sleeves with a length equal to the thickness of the wall to be crossed, and fit the multiple through-wall sleeves one by one onto the multiple first horizontal bars at the joint positions of the corresponding two half horizontal bars, thereby forming a non-standard transition section for the tower crane; Two sets of outrigger supports are pre-embedded in the soil within the foundation area of ​​the tower crane, so that the two sets of outrigger supports are located on the two opposite outer sides of the wall to be spanned, and the two vertical frames in the non-standard transition section of the tower crane are installed on the top of the two sets of outrigger supports one by one. At least one tie rod is installed at the top of at least one vertical frame to achieve anti-tipping reinforcement; Cast the tower crane foundation and tie the reinforcing steel bars for the wall to be spanned; The wall to be spanned is poured. After the wall to be spanned is poured, several first horizontal bars and two vertical frames are removed. The openings of the through-wall sleeves are then filled with water and waterproofed, thus completing the construction of the wall-spanning tower crane installation structure.

2. The construction method for the cross-wall tower crane installation structure as described in claim 1, characterized in that, When two vertical frames are provided, the vertical frames include: Two uprights spaced apart; Multiple second crossbars are fixed at intervals between the two uprights along the height direction; Multiple diagonal braces are fixedly connected between each pair of adjacent second horizontal bars, and the two ends of each diagonal brace are fixedly connected to the two vertical bars respectively.

3. The construction method for the cross-wall tower crane installation structure as described in claim 2, characterized in that, After connecting two half-crossbars in each pair to form multiple first crossbars, a first armhole plate is fixed at the connection point between each first crossbar and the corresponding upright in the vertical frame.

4. The construction method for the cross-wall tower crane installation structure as described in claim 2, characterized in that, When two sets of outrigger supports are pre-embedded in the soil within the foundation area of ​​the tower crane, each set of outrigger supports includes two outrigger support bodies respectively supported at the bottom of two uprights in the corresponding vertical frame, and each outrigger support body includes: The system includes a support wing plate embedded in the soil, another support wing plate for supporting the bottom of the corresponding upright, at least two connecting web members fixedly connected between the two support wing plates, and at least one set of reinforcement members connected between each pair of adjacent connecting web members, with each set of reinforcement members including multiple reinforcing rods spaced vertically.

5. The construction method for the cross-wall tower crane installation structure as described in claim 1, characterized in that, When two half-crossbars in each pair of half-crossbars are detachably connected to form multiple first crossbars, flange bolts connect the two half-crossbars in each pair of half-crossbars.

6. The construction method for the cross-wall tower crane installation structure as described in claim 1, characterized in that, The outer side of the wall to be crossed is provided with foundation pit support piles. When at least one tie member is set on the top of at least one vertical frame to achieve anti-overturning reinforcement, a tie member is set on the vertical frame located on the outer side of the wall to be crossed at the position corresponding to the waist beam of the support pile, and one end of the tie member is fixedly connected to the vertical frame and the other end is fixedly connected to the waist beam of the support pile.

7. The construction method for the cross-wall tower crane installation structure as described in claim 1, characterized in that, When tying the reinforcing bars of the wall to be spanned, adjust the position of the through-wall sleeves so that each through-wall sleeve is symmetrically set relative to the vertical reinforcing bars of the two adjacent walls, the sleeve opening is flush with the wall surface of the wall to be spanned, and each first horizontal bar is located on the central axis of the corresponding through-wall sleeve, thereby achieving the positioning of the through-wall sleeves.

8. The construction method for the cross-wall tower crane installation structure as described in claim 7, characterized in that, When tying the reinforcing bars of the wall to be spanned, the through-wall sleeves should be reinforced. Reinforcement methods include: Two horizontal reinforcing bars are fixedly installed between the two vertical reinforcing bars of the wall on both sides of each through-wall sleeve, and the two horizontal reinforcing bars are fixed to the top and bottom of the corresponding through-wall sleeve respectively; Diagonal reinforcing bars are fixed along the tangent on both sides of each through-wall sleeve, and the two diagonal reinforcing bars are fixed between the vertical reinforcing bars and the horizontal reinforcing bars of each adjacent wall, respectively.

9. The construction method for the cross-wall tower crane installation structure as described in claim 1, characterized in that, When repairing and waterproofing the opening of the wall sleeve, the repair and waterproofing methods include the following: Provide a sealing steel plate and fix the sealing steel plate to the through-wall sleeve opening located on one side of the outer side of the wall; Pour concrete of the same strength as the wall concrete into the through-wall sleeve; Provide another sealing steel plate and fix it to the through-wall sleeve opening located on one side of the inner side of the wall.

10. A cross-wall tower crane installation structure, characterized in that, The construction is carried out using the construction method for the cross-wall tower crane installation structure as described in claim 1, wherein the cross-wall tower crane installation structure includes: The wall to be crossed; The tower crane foundation is poured into the foundation soil at the bottom of the wall to be crossed; Two sets of outrigger supports are pre-embedded within the tower crane foundation area and are respectively located on two opposite outer sides of the wall to be crossed; The non-standard transition section of the tower crane includes two vertical frames that are installed one-to-one on the top of the two sets of support legs, and multiple pairs of semi-horizontal bars that are fixed between the two vertical frames. Each pair of semi-horizontal bars is detachably connected to form a first horizontal bar. At the connection position between each first horizontal bar and the corresponding two semi-horizontal bars, a through-wall sleeve is provided that penetrates the wall to be crossed. The length of the through-wall sleeve is equal to the thickness of the wall to be crossed. At least one tie member is provided at the top of at least one of the vertical frames.

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