Secondary pouring tower crane foundation

Abstract

The utility model belongs to the technical field of tower crane foundations, and particularly relates to a secondary pouring tower crane foundation which comprises an original basement bottom plate, an original tower crane foundation is poured on the upper side of the original basement bottom plate, a plurality of embedded anchor plates are embedded in the inner side of the original tower crane foundation at equal intervals, and original foundation surface ribs are arranged on the inner side of the original tower crane foundation. Before the construction of a building main body, the construction of the tower crane foundation can be firstly carried out without waiting for the tower crane to enter a site, meanwhile, the secondary pouring tower crane foundation can accurately control the use amount of concrete and reinforcing steel bars according to the actual use requirement of the tower crane, material waste is avoided, the secondary pouring foundation is transformed by utilizing the original position, and the construction cost is reduced. The investment of tower crane foundation reinforcing steel bars and concrete is greatly reduced, the transformation difficulty is reduced, the tower crane body is quickly mounted, the utilization rate of the tower crane body is improved, the site construction progress is accelerated, and the cost is greatly saved; the problems that an existing tower crane is complex in secondary installation, long in consumed time and tedious in operation are solved.

Description

Technical Field

[0001] This utility model relates to the field of tower crane foundation technology, and in particular to a secondary-cast tower crane foundation. Background Technology

[0002] To improve construction efficiency and reduce labor costs, a secondary-cast tower crane foundation is needed. The tower crane foundation can be constructed before the main building construction, without waiting for the tower crane to arrive on site. At the same time, the secondary-cast tower crane foundation can precisely control the amount of concrete and steel bars used according to the actual usage requirements of the tower crane, avoiding material waste. Utility Model Content

[0003] To address the aforementioned technical issues, this utility model proposes a secondary-cast tower crane foundation. The tower crane foundation can be constructed before the main building construction, eliminating the need to wait for the tower crane to arrive. Furthermore, the secondary-cast foundation allows for precise control of concrete and steel reinforcement usage based on the actual needs of the tower crane, preventing material waste. Utilizing the original location for modification, the secondary-cast foundation significantly reduces the input of steel reinforcement and concrete for the tower crane foundation, simplifies modification, facilitates rapid installation of the tower crane body, improves the utilization rate of the tower crane body, accelerates on-site construction progress, and greatly saves costs.

[0004] The technical solution to achieve the purpose of this utility model is as follows: a secondary cast-in-place tower crane foundation, including an original basement floor slab, an original tower crane foundation cast on the upper side of the original basement floor slab, multiple pre-embedded anchor plates pre-embedded at equal intervals on the inner side of the original tower crane foundation, and original foundation reinforcement bars provided on the inner side of the original tower crane foundation, a secondary cast-in-place foundation cast on the upper side of the original tower crane foundation, and a tower crane body installed on the upper side of the secondary cast-in-place foundation.

[0005] In some embodiments, tower crane bases are fixed at the four lower corners of the tower crane body, and multiple tower crane bases are integrated with the secondary cast foundation through multiple pre-embedded anchor plates.

[0006] In some embodiments, the thickness of the original basement floor slab is 400 mm.

[0007] In some embodiments, multiple reinforcing bars are provided at equal intervals on the inner side of the secondary cast foundation.

[0008] Compared with existing technologies, the significant advantages of this invention are:

[0009] The utility model discloses before the construction of building main body, can carry out the construction of tower crane foundation first, and need not wait for tower crane to enter the field, and the secondary pouring tower crane foundation can be according to the actual use demand of tower crane, and the amount of concrete and reinforcement is accurately controlled, the material waste is avoided, and the secondary pouring foundation utilizes the original position reconstruction, greatly reduces the input of tower crane foundation reinforcement and concrete, reduces the reconstruction difficulty, installs the tower crane body quickly, improves the utilization of tower crane body, speeds up the construction progress on site, greatly saves the cost;

[0010] Solve the existing tower crane secondary installation complex, time -consuming is longer, and the problem of cumbersome operation. BRIEF DESCRIPTION OF DRAWINGS

[0011] The utility model makes further explanation below combining with the drawings and embodiment:

[0012] Figure 1 It is the whole three -dimensional structure schematic diagram provided in an embodiment of the utility model;

[0013] Figure 2 It is the whole front plane structure schematic diagram provided in an embodiment of the utility model;

[0014] Figure 3 It is the whole front plane partial sectional structure schematic diagram provided in an embodiment of the utility model.

[0015] EXPLANATION OF REFERENCE NUMERALS:

[0016] 1, original basement bottom plate;2, original tower crane foundation;3, pre -buried anchor plate;4, original foundation gluten;5, secondary pouring foundation;6, tower crane base;7, tower crane body. DETAILED DESCRIPTION

[0017] The utility model will be described in detail below, and the technical scheme in the embodiment of the utility model is clearly and completely described, obviously, the described embodiment only is a part of embodiment of the utility model, but not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the range of the utility model protection.

[0018] The utility model discloses a kind of secondary pouring tower crane foundations by improvement provided herein, and the technical scheme of the utility model is:

[0019] As Figures 1-3As shown, a secondary pouring tower crane foundation, including the original basement floor 1, the upper side of the original basement floor 1 pouring original tower crane foundation 2, the inner side of the original tower crane foundation 2 is embedded with a plurality of embedded anchor plates 3, and the inner side of the original tower crane foundation 2 is provided with an original foundation gluten 4, the upper side of the original tower crane foundation 2 pouring secondary pouring foundation 5, the upper side of the secondary pouring foundation 5 installing tower body 7;

[0020] Project restart, due to the original anchor bolts have been severely rusted, after the scheme must choose, using stripping original foundation gluten 4, and pouring a small cap scheme, stripping gluten area is 3.4*3.4m, put in a plurality of embedded anchor plates 3, re-bundling new gluten and tieback, and then pouring concrete, after reaching the strength of the first 20m installation of an attachment, and then install tower body 7, secondary pouring concrete strength, the strength of the foundation reinforcement, the strength of a plurality of embedded anchor plates 3, the strength of a plurality of embedded anchor plates 3 and leg weld, through stress analysis and calculation, the results meet the requirements, secondary pouring foundation 5 using the original position transformation, greatly reducing the tower crane foundation reinforcement and concrete investment, reduce the difficulty of transformation, fast installation of tower body 7, improve the utilization of tower body 7, speed up the construction progress, greatly save the cost.

[0021] As shown in Figure 3 In an embodiment, the lower end of the tower body 7 is fixed with a tower base 6 at each corner, and the plurality of tower bases 6 are integrated with the secondary pouring foundation 5 through the plurality of embedded anchor plates 3, ensuring stable installation of the tower body 7.

[0022] As shown in Figure 1 and Figure 2 In an embodiment, the thickness of the original basement floor 1 is 400mm.

[0023] As shown in Figure 3 In an embodiment, a plurality of steel bars are arranged at equal intervals on the inner side of the secondary pouring foundation 5, ensuring the strength of the secondary pouring foundation 5 after pouring.

[0024] The specific working method is: the original tower machine foundation 2 is located on the original basement bottom plate 1, the thickness of the original basement bottom plate 1 is 400mm, the project is restarted, since the original anchor bolt has been seriously corroded, after scheme selection, the scheme of stripping the original foundation gluten 4 and pouring a small pile cap is adopted, the area of the stripped gluten is 3.4*3.4m, a plurality of embedded anchor plates 3 are placed, new gluten and tie bars are rebonded, then concrete is poured again, after reaching the strength, a first attachment is installed at 20m, then the tower machine body 7 is installed, the strength of the secondary pouring concrete, the strength of the foundation steel bars, the strength of the plurality of embedded anchor plates 3, the strength of the plurality of embedded anchor plates 3 and the leg weld, after stress analysis and calculation, the results all meet the requirements, the secondary pouring foundation 5 utilizes the original position reconstruction, greatly reduces the input of the tower crane foundation steel bars and concrete, reduces the reconstruction difficulty, quickly installs the tower machine body 7, improves the utilization rate of the tower machine body 7, speeds up the construction progress of the site, and greatly saves the cost.

[0025] The technical means disclosed by the utility model scheme is not only limited to the technical means disclosed by the above technical means, but also includes the technical scheme composed by the above technical features and equivalent replacement. The unfinished matters of the utility model belong to the common knowledge of the person skilled in the art.

Claims

1. A secondary pouring tower crane foundation, comprising a primary basement bottom plate (1), the upper side of the primary basement bottom plate (1) is poured with a primary tower crane foundation (2), the inner side of the primary tower crane foundation (2) is pre-buried with a plurality of pre-buried anchor plates (3) at equal intervals, and the inner side of the primary tower crane foundation (2) is provided with a primary foundation gluten (4), characterized in that: The upper side of the original tower machine foundation (2) is poured with a secondary pouring foundation (5), and the upper side of the secondary pouring foundation (5) is provided with a tower machine body (7).

2. A foundation for a tower crane according to claim 1, characterised in that: The lower end of the tower machine body (7) is fixed with a tower machine base (6) at four corners, and a plurality of tower machine bases (6) are integrated with the secondary pouring foundation (5) through a plurality of pre-buried anchor plates (3).

3. A foundation for a tower crane according to claim 1, characterized in that: The thickness of the original basement bottom plate (1) is 400mm.

4. A foundation for a tower crane according to claim 1, characterized in that: The inner side of the secondary pouring foundation (5) is provided with a plurality of steel bars at equal intervals.

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