A climbing method for a space self-elevating internal climbing tower crane with a variable cross-section structure

Abstract

The present invention discloses a climbing method of a self-elevating inner climbing tower crane in a variable cross-section structure space, comprising a construction structure, wherein the construction structure comprises a self-elevating tower crane system, a support beam system, a lower hanging protection platform system, and a variable cross-section structure space, wherein the support beam system is installed on a wall, and on the lower hanging protection platform system, the self-elevating tower crane system is installed on the support beam system, and a variable cross-section structure space is arranged on the upper part of the support beam system. Beneficial effects of the present invention: The present invention solves the climbing problem of a self-elevating inner climbing tower crane in a variable cross-section structure space, broadens the application scope of the self-elevating inner climbing tower crane, improves the construction efficiency of the tower crane from the aspect of plane layout, reduces the construction cost from the aspect of tower crane climbing operation, and has good innovation, applicability and economy.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to a climbing method of a space self-elevating inner climbing tower machine with a variable cross-section structure. Background Art

[0002] Self-erecting internal climbing tower cranes are large-scale lifting machinery in the construction industry and are more common in the field of high-rise construction. The main forms include self-erecting internal climbing boom tower cranes, self-erecting internal climbing flat arm tower cranes, etc.

[0003] 1. For example, a Chinese patent discloses an assembled rapid temporary plugging structure for irregular atrium holes and a construction method (publication number: CN116815937A), wherein the plugging structure comprises a steel-concrete longitudinal beam at the edge of the hole, on which a prefabricated variable-section steel main beam for plugging is arranged, the prefabricated variable-section steel main beam divides the plugging space into a side span and a middle span, and both the side span and the middle span are provided with prefabricated steel secondary beams for plugging, and the two ends of the prefabricated steel secondary beam in the side span are respectively connected to the reinforced concrete cross beam at the edge of the hole and the prefabricated variable-section steel main beam; the construction method comprises the following steps: reserving steel bars and steel plates at the edge of the hole; reserving steel plate anchor bars; processing prefabricated steel structures; hoisting prefabricated variable-section steel main beams; installing prefabricated steel secondary beams; constructing cast-in-place reinforced concrete vertical walls; installing steel skeleton light prefabricated panels and special-shaped steel plates; and constructing a decoration layer. The invention solves the problems of difficulty in construction, long construction period and poor safety in quickly temporarily plugging large-span holes in a limited space of an underground structure.

[0004] 2. A construction method for prefabricating and installing a variable-section inclined tower steel frame in blocks (publication number: CN113494051B). The variable-section inclined tower steel frame of the entire segment includes two symmetrically inclined U-shaped standard block steel frames and a central widened overlap section. The cross-sections of the two inclined U-shaped standard block steel frames maintain the same slope as the widening slopes on both sides of the inclined tower. In the adjacent two segment steel frames, the bottom width of the central widened overlap section of the upper segment is equal to the top width of the central widened overlap section of the lower segment, so that the standard block structure size divided from the upper and lower segment steel frames remains consistent. The present invention can be applied to the construction of variable-section inclined tower steel frames of various structural forms. By dividing the entire segment steel frame into two standard blocks and overlap sections, the standard blocks are prefabricated in an integrated construction platform, and then hoisted as a whole to the site for installation, the construction efficiency of the tower column steel frame can be effectively improved, while greatly reducing the risk of high-altitude operations.

[0005] Variable cross-section structural space is one of the common structures in construction structures. For example, inclined walls and back-shifted walls cause construction spaces to have cross-section changes in the vertical direction. This variable cross-section structural space sometimes restricts the plane layout of self-erecting internal climbing tower cranes, resulting in additional construction costs. To solve such problems, a segmented self-erecting tower crane support beam system has emerged. The basic concept is to adapt to the construction needs of variable cross-section structural space by adjusting the support beam system.

[0006] Therefore, it is necessary to propose a climbing method for a variable-section structure space self-elevating internal climbing tower crane to solve the above problems. Summary of the invention

[0007] In view of the above-mentioned deficiencies in the prior art, an object of the present invention is to provide a climbing method for a space self-elevating internal climbing tower crane with a variable cross-section structure, so as to solve the above-mentioned problems.

[0008] A climbing method for a self-elevating inner-climbing tower crane with a variable-section structural space comprises a construction structure, wherein the construction structure comprises a self-elevating tower crane system, a support beam system, a hanging protective platform system, and a variable-section structural space, wherein the support beam system is installed on a wall, and the self-elevating tower crane system is installed on the support beam system on the hanging protective platform system, wherein a variable-section structural space is arranged on the upper part of the support beam system.

[0009] Preferably, the self-erecting tower crane system includes a self-erecting tower crane and a lifting beam mechanism, the supporting beam system includes an upper supporting beam, a middle supporting beam and a lower supporting beam, the lower hanging platform protection system includes a suspension cable and a lower hanging platform, the upper supporting beam, the middle supporting beam and the lower supporting beam are all fixed to the wall through wall-attached supports, the lower hanging platform is connected to the lower supporting beam and the middle supporting beam through suspension cables, the self-erecting tower crane is installed on the middle supporting beam and the lower supporting beam, the lifting beam mechanism is installed on the upper part of the self-erecting tower crane, and the tower crane is installed on the upper end of the self-erecting tower crane.

[0010] Preferably, the variable cross-section structural space is a gradual architectural structure, a stepped architectural structure and a sudden architectural structure.

[0011] A climbing method for a space self-elevating inner climbing tower crane with a variable cross-section structure, the method steps are as follows:

[0012] S1, Operation Phase 1, dismantling, modifying and lifting the upper support beam;

[0013] S2, Operation Phase 2, dismantling, modifying and lifting the lower support beam;

[0014] S3, Operation Phase Three: Dismantle, modify and lift the lower platform.

[0015] The further process of step S1 is as follows:

[0016] S11. Set up an operating platform on the middle support beam, then fix each beam section of the upper support beam, and dismantle the beam end after fixing them firmly;

[0017] S12, lift the middle beam and assemble the remaining beam sections, and finally lift the dismantled and modified support beam to the predetermined position and climb the tower crane;

[0018] S13. Finally, the middle support beam is dismantled and lifted according to the method of dismantling the upper support beam.

[0019] The further process of step S2 is as follows:

[0020] S21. After the conditions for climbing are met, the tower crane is separated from the lower support beam and then climbed independently, and is seated on the middle support beam by means of the tower crane's own adhesion ability;

[0021] S22, then dismantle and lift the lower support beam according to the method of dismantling and modifying the upper support beam, and finally lower the tower crane back to the lower support beam and firmly connect it;

[0022] S23. After the main work in this stage is completed, the lower support beam and the lower hanging platform can be firmly connected through suspension cables.

[0023] The further process of step S3 is as follows:

[0024] S31. After the tower crane is ready for climbing, the wall support of the supporting layer where the lower platform is located is dismantled, modified and hoisted;

[0025] S32, then dismantle and modify the lower hanging platform according to the size of the variable cross-section space 4, and perform the tower crane climbing operation after the dismantling and modification is completed;

[0026] S33, the construction of the self-elevating internal climbing tower crane 1 of the variable cross-section structure space 4 is completed.

[0027] After the tower crane is ready for operation, the specific steps for dismantling and modifying each support beam are as follows: the first step is to set up the operating platform, the second step is to fix the beam sections of the support beam, the third step is to dismantle and lift the middle beam body, the fourth step is to assemble the left and right beam sections, and the fifth step is to lift the dismantled and modified support beam.

[0028] Preferably, the wall-mounted support includes a first support and a second support, the first support includes a first connecting plate, expansion bolts and a first hanging plate, the first hanging plate is connected to the first connecting plate, and the first connecting plate is fixed to the wall by a plurality of expansion bolts.

[0029] Preferably, the second support includes a second connecting plate, bolts and a second hanging plate, the second hanging plate is connected to the second connecting plate, and the second connecting plate is fixed to the steel frame by a plurality of bolts.

[0030] Compared with the prior art, the present invention has the following beneficial effects: the present invention solves the climbing problem of a self-erecting internal climbing tower crane in a variable cross-section structure space, broadens the application scope of the self-erecting internal climbing tower crane, improves the construction efficiency of the tower crane from the aspect of plane layout, reduces the construction cost from the aspect of tower crane climbing operation, and has good innovation, applicability and economy. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 and Figure 2 It is a construction structure diagram of the present invention;

[0032] Figure 3 is a top view of the present invention;

[0033] Figure 4 This is a structural diagram of the wall-attached support and the wall body of the present invention;

[0034] Figure 5 is a structural diagram of a first support of the present invention;

[0035] Figure 6 is a structural diagram of a second support of the present invention;

[0036] Figure 7 and Figure 8 It is a schematic diagram of the construction process of the operation stage of the present invention;

[0037] Fig. 9 and Fig.10 It is a schematic diagram of the construction process of the second operation stage of the present invention;

[0038] Fig.11 and Fig.12 It is a schematic diagram of the construction process of the third operation stage of the present invention.

[0039] The accompanying drawings are as follows: 1. Self-elevating tower crane system: 101. Self-elevating tower crane; 102. Beam lifting mechanism; 2. Support beam system: 201. Upper support beam; 202. Middle support beam; 203. Lower support beam; 204. Wall support; 205. First support; 206. Second support; 207. First connecting plate; 208. Expansion bolt; 209. First hanging plate; 210. Second connecting plate; 211. Bolt; 212. Second hanging plate; 3. Lower hanging platform protection system: 301. Suspension cable; 302. Lower hanging platform; 4. Variable cross-section structure space; 5. Wall; 6. Crane; 7. Steel frame; 100. Construction structure; S. First supporting layer; A. Second supporting layer; B. Third supporting layer; C. Fourth supporting layer; D. Fifth supporting layer; E. Sixth supporting layer. DETAILED DESCRIPTION

[0040] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0041] 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 positions or positional relationships based on the positions 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", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0042] 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0043] The embodiments of the present invention are described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways as defined and covered by the claims.

[0044] like Figure 1 Combined with Figures 2 to 12 As shown, a climbing method of a self-elevating inner-climbing tower crane with a variable-section structural space includes a construction structure 100, wherein the construction structure 100 includes a self-elevating tower crane system 1, a support beam system 2, a lower hanging protection platform system 3, and a variable-section structural space 4. The support beam system 2 is installed on a wall 5, and the support beam system 2 is arranged on the lower hanging protection platform system 3. The self-elevating tower crane system 1 is installed on the support beam system 2, and a variable-section structural space 4 is arranged on the upper part of the support beam system 3.

[0045] Furthermore, the self-erecting tower crane system 1 includes a self-erecting tower crane 101 and a beam lifting mechanism 102, the support beam system 2 includes an upper support beam 201, a middle support beam 202, and a lower support beam 203, the lower hanging platform protection system 3 includes a suspension cable 301 and a lower hanging platform 302, the upper support beam 201, the middle support beam 202 and the lower support beam 203 are all fixed to the wall 5 through a wall-mounted support 204, the lower hanging platform 302 is connected to the lower support beam 203 and the middle support beam 202 through the suspension cable 301, the self-erecting tower crane 101 is installed on the middle support beam 202 and the lower support beam 203, the beam lifting mechanism 102 is installed on the upper part of the self-erecting tower crane 101, and a crane 6 is installed on the upper end of the self-erecting tower crane 101.

[0046] Furthermore, the variable cross-section structural space 4 is a gradual architectural structure, a stepped architectural structure and a sudden architectural structure.

[0047] A climbing method for a space self-elevating inner climbing tower crane with a variable cross-section structure, the method steps are as follows:

[0048] S1, operation stage 1, dismantling, modifying and lifting the upper support beam 201;

[0049] S2, operation stage 2, dismantling, modifying and lifting the lower support beam 203;

[0050] S3, operation stage three, dismantling, modifying and lifting the lower hanging platform 302.

[0051] The further process of step S1 is as follows:

[0052] S11, setting up an operating platform on the middle support beam 202, and then fixing each beam section of the upper support beam 201, and dismantling the beam end after fixing them firmly;

[0053] S12, lifting the middle beam and assembling the remaining beam sections, and finally lifting the dismantled and modified support beam to a predetermined position and climbing the self-elevating tower crane 101;

[0054] S13. Finally, the middle support beam 202 is dismantled and lifted according to the dismantling method of the upper support beam 201.

[0055] The further process of step S2 is as follows:

[0056] S21, when the climbing conditions are met, the self-elevating tower crane 101 is separated from the lower support beam 203 and then climbed independently, and the self-elevating tower crane 101 is seated on the middle support beam 202 by means of its own adhesion ability;

[0057] S22, then dismantle and lift the lower support beam 203 according to the dismantling method of the upper support beam 201, and finally lower the self-elevating tower crane back to the lower support beam 203 and firmly connect it;

[0058] S23. After the main work in this stage is completed, the lower support beam 203 and the lower hanging platform 302 can be firmly connected through the suspension cable 301.

[0059] The further process of step S3 is as follows:

[0060] S31, after the self-elevating tower crane is ready for climbing, the wall support 204 of the supporting layer where the lower hanging platform 302 is located is dismantled, modified and hoisted;

[0061] S32, then dismantle and modify the lower hanging platform 302 according to the size of the variable cross-section space 4, and after the dismantling and modification, perform the climbing operation of the tower crane 101;

[0062] S33, the construction of the self-elevating tower crane 101 of the variable cross-section structure space 4 is completed.

[0063] After the self-erecting tower crane 101 meets the operating conditions, the specific dismantling and modification steps of each supporting beam are: the first step is to set up the operating platform, the second step is to fix the beam sections of the supporting beam, the third step is to dismantle and lift the middle beam body, the fourth step is to assemble the left and right beam sections, and the fifth step is to lift the dismantled and modified supporting beam.

[0064] Furthermore, the wall-mounted support 204 includes a first support 205 and a second support 206 , the first support 205 includes a first connecting plate 207 , an expansion bolt 208 and a first hanging plate 209 , the first hanging plate 209 is connected to the first connecting plate 207 , and the first connecting plate 207 is fixed to the wall 5 via a plurality of expansion bolts 208 .

[0065] Furthermore, the second support 206 includes a second connecting plate 210 , bolts 211 and a second hanging plate 212 , the second hanging plate 212 is connected to the second connecting plate 210 , and the second connecting plate 210 is fixed to the steel frame 7 by a plurality of bolts 211 .

[0066] Compared with the prior art, the present invention has the following beneficial effects: the present invention solves the climbing problem of the self-erecting tower crane 101 in the variable-section structure space 4, broadens the application scope of the self-erecting tower crane 101, improves the construction efficiency of the self-erecting tower crane 101 from the plane layout aspect, reduces the construction cost from the climbing operation of the self-erecting tower crane 101, and has good innovation, applicability and economy.

[0067] The lower edge of the variable-section structure space 4 is dismantled and modified, and after the dismantling and modification is completed, it is lifted to the upper edge of the variable-section structure space 4; the height of the variable-section structure space 4 determines the climbing height of the self-erecting tower crane 101. If the variable-section structure occupies three structural layers, the climbing step of the self-erecting tower crane 101 (that is, the number of structural layers crossed by the self-erecting tower crane 101 each time it climbs) occupies at least four structural layers, and the variable-section structure space 4 occupies two structural layers, then the climbing step of the self-erecting tower crane 101 occupies at least three structural layers, and the variable-section structure space 4 occupies one structural layer, then the climbing step of the self-erecting tower crane 101 occupies at least two structural layers, and the variable-section structure space 4 is a de-formatted or mutant type, then the climbing step of the self-erecting tower crane 101 occupies at least one structural layer.

[0068] Construction method steps

[0069] The construction method of the present invention comprises the following steps:

[0070] Operation Phase 1:

[0071] Step 1: Complete the installation of the wall support 204 of the fourth support layer C, and lift the middle support beam 202 to the wall support 204 of the third support layer B, wherein the lower hanging platform 301 is located at the first support layer S, and the lower support beam is located at the second support layer A;

[0072] Step 2: Set up an operating platform on the middle support beam 202; the state after the operation is:

[0073] Step 3: Use steel wire ropes to firmly fix the left, middle and right sections of the upper support beam 201, where the middle section is the section to be removed:

[0074] Step 4: dismantle the upper support beam 201;

[0075] Step 5, lifting the middle beam of the upper support beam 201;

[0076] Step 6, assembling the left and right sections of the upper support beam 201;

[0077] Step 7: lift the dismantled upper support beam 201 to the wall support 204 of the fourth support layer C; lift the middle support beam 202 to the wall support 204 of the third support layer B;

[0078] Step 8, climbing the self-elevating tower crane 101;

[0079] Step nine, dismantle the middle support beam 202.

[0080] Operation Phase 2:

[0081] Step 1: lift the upper support beam 201 to the wall support 204 of the fifth support layer D; lift the middle support beam 202 to the upper wall support 204 of the fourth support layer C;

[0082] Step 2: lifting the lower hanging platform 302 to the third supporting layer B;

[0083] Step 3, fix the lower hanging platform 302 to the wall support 204 of the third supporting layer B, and contact the suspension cable 301 of the lower hanging platform 302;

[0084] Step 4, separating the self-elevating tower crane 101 and the lower support beam 203;

[0085] Step 5, climbing the self-elevating tower crane 101 alone;

[0086] Step 6: Fix the tower crane and the middle support beam 202; fix the left, middle and right sections of the lower support beam 203 with steel wire ropes; the state after the operation is: the fifth support layer D is the upper support beam 201; the fourth support layer C is the middle support beam 202; the third support layer B is the lower support beam 203 and the lower hanging platform 302;

[0087] Step 7, dismantle and lift the lower support beam 203;

[0088] Step 8: the tower crane falls back to the lower support beam 203;

[0089] Step nine: fix the self-elevating tower crane 101 and the lower support beam 203.

[0090] Step 10, connect the lower support beam 203 and the lower hanging platform 302 with a suspension cable, and remove the third support layer B wall support 204;

[0091] Operation Phase Three:

[0092] Step 1: Install the wall support 204 of the sixth support layer E; lift the middle support beam 202 to the wall support 204 of the fifth support layer D;

[0093] Step 2: lift the upper support beam 201 to the upper wall support 204 of the sixth support layer E; lift the middle support beam 202 to the upper wall support 204 of the fifth support layer D;

[0094] Step three: dismantle and modify the lower hanging platform 302 and climb the self-elevating tower crane 101.

[0095] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A construction method for a self-elevating inner climbing tower crane for a variable cross-section structure space, characterized in that: The invention comprises a construction structure (100), wherein the construction structure (100) comprises a self-elevating tower crane system (1), a support beam system (2), a lower hanging protection platform system (3), and a variable cross-section structure space (4); the support beam system (2) is installed on a wall (5); the support beam system (2) is arranged on the lower hanging protection platform system (3); the self-elevating tower crane system (1) is installed on the support beam system (2); and a variable cross-section structure space (4) is arranged on the upper part of the support beam system (2); the self-elevating tower crane system (1) comprises a self-elevating tower crane (101) and a beam lifting mechanism (102); the support beam system (2) comprises an upper support beam (201), a middle support beam (202), and a lower support beam (203); the lower hanging protection platform system (3) comprises a plurality of support beams (201, 202, and 203); and the variable cross-section structure space (4) is arranged on the upper part of the support beam system (2). The platform system (3) comprises a suspension cable (301) and a lower hanging platform (302); the upper support beam (201), the middle support beam (202) and the lower support beam (203) are all fixed to the wall (5) via a wall-attached support (204); the lower hanging platform (302) is connected to the lower support beam (203) and the middle support beam (202) via the suspension cable (301); the self-elevating tower crane (101) is installed on the middle support beam (202) and the lower support beam (203); the beam lifting mechanism (102) is installed on the upper part of the self-elevating tower crane (101); and a crane (6) is installed on the upper end of the self-elevating tower crane (101); the variable cross-section structural space (4) is a gradual architectural structure, a de-escalated architectural structure and a sudden architectural structure; Also included is a construction method, the method steps of which are: S1, operation stage 1, dismantling, modifying and lifting the upper support beam (201); S2, operation stage 2, dismantling, modifying and lifting the lower support beam (203); S3, operation stage three, dismantling, modifying and lifting the lower hanging platform (302); The further process of step S1 is as follows: S11, setting up an operating platform on the middle support beam (202), and then fixing each beam section of the upper support beam (201), and dismantling the beam end after fixing them firmly; S12, lifting the middle beam and assembling the remaining beam sections, and finally lifting the dismantled and modified support beam to a predetermined position and climbing the self-elevating tower crane (101); S13, finally, dismantling and lifting the middle support beam (202) according to the dismantling and modification method of the upper support beam (201); S21, when the climbing conditions are met, the self-elevating tower crane (101) is separated from the lower support beam (203) and then climbed independently, and the self-elevating tower crane (101) is seated on the middle support beam (202) by means of its own adhesion ability; S22, then dismantle and modify the lower support beam 203 according to the dismantling and modification method of the upper support beam (201), and finally lower the self-elevating tower crane back to the lower support beam (203) and firmly connect it; S23, after the main operations in this stage are completed, the lower support beam (203) and the lower hanging platform (302) can be firmly connected through the suspension cable (301); S31, after the self-elevating tower crane is ready for climbing, the wall support (204) of the supporting layer where the lower hanging platform (302) is located is dismantled, modified and hoisted; S32, then dismantle and modify the lower hanging platform (302) according to the size of the variable cross-section structure space (4), and after the dismantling and modification is completed, perform a climbing operation of the tower crane (101); S33, the construction of the self-elevating tower crane (101) of the variable cross-section structure space (4) is completed; after the self-elevating tower crane (101) is ready for operation, the specific steps of dismantling and modifying each support beam are as follows: the first step is to set up an operating platform, the second step is to fix each beam section of the support beam, the third step is to dismantle and lift the middle beam body, the fourth step is to assemble the left and right beam sections, and the fifth step is to lift the dismantled and modified support beam.

2. A construction method for a self-elevating inner climbing tower crane for a variable cross-section structure space as claimed in claim 1, characterized in that: The wall-mounted support (204) comprises a first support (205) and a second support (206); the first support (205) comprises a first connecting plate (207), an expansion bolt (208) and a first hanging plate (209); the first hanging plate (209) is connected to the first connecting plate (207); and the first connecting plate (207) is fixed to the wall (5) via a plurality of expansion bolts (208).

3. A construction method for a self-elevating inner climbing tower crane for a variable cross-section structure space as claimed in claim 2, characterized in that: The second support (206) comprises a second connecting plate (210), bolts (211) and a second hanging plate (212); the second hanging plate (212) is connected to the second connecting plate (210); and the second connecting plate (210) is fixed to the steel frame (7) by a plurality of bolts (211).

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