CN220978094U - Construction elevator foundation free of support by utilizing existing structure - Google Patents

Abstract

The utility model discloses a construction elevator foundation free of support by utilizing an existing structure, which comprises a basement main body, wherein the basement main body comprises a basement bottom plate, a basement top plate and a construction elevator standard section arranged above the basement top plate; a supporting structure is arranged between the basement bottom plate and the basement top plate, and a reinforcing structure is arranged below the basement top plate; the reinforced structure comprises a structural beam arranged below the top plate of the basement, and an encrypted full-span stirrup is arranged in the structural beam. The utility model adopts the foundation structure of the construction elevator, optimizes the thickness of the basement top plate around the foundation and the reinforcing bars by changing the foundation position of the construction elevator, and utilizes the original structure as the foundation of the construction elevator, thereby reducing the consumption of elevator concrete and reinforcing bars, optimizing the construction elevator position, reducing the cost of renting, erecting and the like of the steel pipe scaffold, and achieving the purpose of saving the construction cost as a whole.

Description

Construction elevator foundation free of support by utilizing existing structure

Technical Field

The utility model belongs to the technical field of building construction, and particularly relates to a construction elevator foundation free of support by using an existing structure.

Background

In recent years, along with the rapid development of economy in China, the construction development of high-rise and super high-rise buildings is well performed, in the building engineering, the on-site construction elevator foundation is generally arranged on a basement roof, and the basement reinforced concrete roof is required to bear the maximum use load of the construction elevator. In practical engineering, the construction elevator and the foundation weight of the construction elevator often exceed the allowable load of the basement roof. Therefore, the construction elevator foundation needs to be subjected to back-jacking, and the weight of the construction elevator foundation is transferred to the structural foundation through the back-jacking structure, so that the structural safety of the basement floor slab is ensured.

In the prior art, in order to solve this problem, mainly adopt scaffold support frame reinforced structure, can reach the purpose of reinforcing reinforced concrete basement roof through using full hall scaffold steel pipe support frame, ensure the structure safety of underground reinforced concrete basement roof and construction elevator's safe in utilization.

While the mode of adopting scaffold structure to consolidate can solve the problem of back-roof support, a large number of steel pipes and a large amount of manpower are required, so that the construction cost is greatly increased.

Disclosure of utility model

The utility model aims to provide a construction elevator foundation which is free of supporting by utilizing the existing structure, changes the foundation composition of the construction elevator, optimizes the thickness of a basement top plate around the foundation and reinforcing bars by using the original structure as the construction elevator foundation, reduces the consumption of elevator concrete and reinforcing bars, optimizes the construction elevator position, reduces the cost of renting, erecting and the like of a steel pipe scaffold, and achieves the aim of saving the construction cost as a whole.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

The construction elevator foundation free of support by utilizing the existing structure comprises a basement main body, wherein the basement main body comprises a basement bottom plate, a basement top plate and a construction elevator standard section arranged above the basement top plate; a supporting structure is arranged between the basement bottom plate and the basement top plate, and a reinforcing structure is arranged below the basement top plate; the reinforced structure comprises a structural beam arranged below the top plate of the basement, and an encrypted full-span stirrup is arranged in the structural beam.

Further, the structural beams are arranged at the center of the top plate of the basement, the structural beams are 300mm multiplied by 700mm, and the interval between the inner stirrups is 100mm.

Further, the support structure includes a masonry wall and a constructional column disposed between the basement floor and the basement roof, and the masonry wall is disposed below the construction elevator standard section.

Further, the constructional column is arranged below the center position of the standard section of the construction elevator.

Further, a plurality of construction elevator standard knots are stacked in sequence in the same orientation and form a construction elevator.

Further, the basement main body is multi-layer, except the basement main body at the lowest layer, the bottom plate of each basement layer is the top plate of the basement at the next layer, and corresponding structural beams are arranged.

Compared with the prior art, the utility model has the advantages that: firstly, the utility model reasonably utilizes the original structure as a construction elevator foundation, can reduce the consumption of elevator concrete and steel bars, and can avoid the expenses of renting, erecting and the like of the steel pipe scaffold.

Secondly, the high-rise building often has more floors and more elevators, if a roof returning mode is adopted, the construction influence on the basement is very large, and by adopting the structural stress mode, the construction elevator foundation not only achieves the effect of reducing the cost and enhancing the efficiency, but also is convenient for site construction and has very great popularization value.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and should not be considered limiting the scope, and that other related drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of a construction elevator foundation using an existing structure without support provided by the present utility model.

Fig. 2 is an elevation view of a construction elevator foundation utilizing existing structures without support provided by the present utility model.

Reference numerals: 1. a basement roof; 2. a basement floor; 3. a structural beam; 4. and (5) constructing a column.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an azimuth or a positional relationship based on that shown in the drawings, or an azimuth or a positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present utility model and simplifying the description, and it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," "third," and the like, if any, are used merely for distinguishing between descriptions and not for indicating or implying a relative importance.

Furthermore, the terms "horizontal," "vertical," "overhang" and the like, if any, do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present utility model, it should also be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "connected," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

It should be noted that the features of the embodiments of the present utility model may be combined with each other without conflict.

As shown in fig. 1-2, a construction elevator foundation free of support by using an existing structure comprises a basement main body, wherein the basement main body comprises a basement bottom plate 2, a basement top plate 1 and a construction elevator standard knot arranged above the basement top plate 1; a supporting structure is arranged between the basement bottom plate 2 and the basement top plate 1, and a reinforcing structure is arranged below the basement top plate 1; the reinforced structure comprises a structural beam 3 arranged below the basement roof 1, and an encrypted full-span stirrup is arranged in the structural beam 3.

In the prior art, when construction elevator foundations are arranged on a basement roof 1 in many construction sites, concrete foundations of 4m (width) x 6m (length) x 0.3m (height) are required to be poured independently, meanwhile, the construction elevator is arranged on the basement roof 1, and because the weight of the upper part of the construction elevator is large, the bearing range of a floor slab is exceeded, the load requirement cannot be met by the general basement roof 1 structure, and the construction elevator foundations are required to be reinforced by roof returning. The traditional roof returning reinforcement generally adopts a steel pipe scaffold for roof returning, but the steel pipe scaffold has large roof returning area, high cost, difficult control of construction quality, complex erection and long construction period. The general solution is to replace a full-hall scaffold with a complex structure from changing the roof returning structure, for example, from aiming at the structure of the scaffold, so that the installation quantity is reduced; or from the installation and disassembly modes of the scaffold, if the connection of the scaffold is changed, the purpose of quick disassembly and quick assembly is achieved, but the defects of adopting the scaffold to carry out the supporting mode in the jack-back structure are not fundamentally overcome. In the utility model, the existing structure is adopted, the main girder of the structure is added below the top plate 1 of each layer of basement, the extra need of carrying out the back-roof on the bottom of the elevator foundation is avoided by utilizing the original structure stress construction technology, the setting form of the elevator foundation is optimized, the cost of the back-roof of the scaffold and the construction of the elevator foundation is reduced, and the aims of reducing the cost and enhancing the efficiency are achieved.

Preferably, the structural beams 3 are disposed at the center of the basement roof 1, and the structural beams 3 are 300mm×700mm, and the inter-stirrup spacing is 100mm. The thickness of the peripheral floor slab of the construction elevator foundation is more than or equal to 300mm, the strength grade of concrete is equal to that of the basement roof 1 and is not lower than C30, the floor slab reinforcing steel bars are arranged in a double-layer bidirectional manner, and the lower building wall constructional columns 4 are poured along with the main structure of the basement once in the center of the construction elevator.

The support structure comprises a masonry wall and a constructional column 4 arranged between the basement bottom plate 2 and the basement top plate 1, the arrangement of the masonry wall is relatively common, and the structural style is fixed, omitted in the drawings, but in actual operation the masonry wall should be arranged below the standard section of the construction elevator. And the constructional column 4 is arranged below the center position of the standard joint of the construction elevator.

Specifically, before the construction of the underground structure, the arrangement position of the construction elevator is optimized according to the position of the underground masonry wall, so that the construction elevator is arranged above the masonry wall, the constructional column 4 is arranged at the position of the masonry wall corresponding to the center of the standard section of the construction elevator, and the construction elevator is poured along with the main structure of the basement at one time. The basement roof 1 is used for constructing the reinforcing steel bars of the peripheral floor slab of the elevator foundation, the reinforcing steel bars are compared with the reinforcing steel bars of the foundation in the construction elevator specification according to the original structural drawing design, and binding is carried out according to the fact that the diameter of the reinforcing steel bars is the largest and the distance is the smallest.

The construction elevator standard knots are stacked in sequence in the same direction and form the construction elevator. Before the concrete of the basement roof 1 is poured, the basement roof 1 is poured after the construction elevator standard knot embedded part is installed and accepted.

As another technical scheme of the utility model, when the basement main body is multi-layer, except the basement main body at the lowest layer, the basement bottom plate at each layer is the top plate of the basement at the next layer, and corresponding structural beams are arranged. At this time, the corresponding bottommost basement floor should be a foundation base.

In the utility model, the original structure is used as a construction elevator foundation, so that the consumption of elevator concrete and steel bars can be reduced, the construction elevator position is optimized, and the expenses of renting, erecting and the like of the steel pipe scaffold can be avoided by using the original constructional column.

The above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims (6)

1. A construction elevator basis that utilizes existing structure to exempt from to support which characterized in that: the basement comprises a basement main body, wherein the basement main body comprises a basement bottom plate (2), a basement top plate (1) and a construction elevator standard section arranged above the basement top plate (1); a supporting structure is arranged between the basement bottom plate (2) and the basement top plate (1), and a reinforcing structure is arranged below the basement top plate (1); the reinforced structure comprises a structural beam (3) arranged below the basement roof (1), and an encrypted full-span stirrup is arranged in the structural beam (3).

2. The construction elevator foundation free of support utilizing existing structures of claim 1, wherein: the structure beam (3) is arranged at the center of the basement roof (1), the structure beam (3) is 300mm multiplied by 700mm, and the interval between the inner stirrups is 100mm.

3. The construction elevator foundation free of support utilizing existing structures of claim 1, wherein: the supporting structure comprises a masonry wall and a constructional column (4) which are arranged between the basement bottom plate (2) and the basement top plate (1), and the masonry wall is arranged below the construction elevator standard section.

4. A construction elevator foundation free of support utilizing an existing structure according to claim 3, wherein: the constructional column (4) is arranged below the center position of the standard section of the construction elevator.

5. The construction elevator foundation free of support utilizing existing structures of claim 1, wherein: the construction elevator standard knots are stacked in sequence in the same direction and form the construction elevator.

6. The construction elevator foundation free of support utilizing existing structures of claim 1, wherein: the basement main body is multi-layer, except the basement main body at the lowest layer, each basement bottom plate (2) at the other layers is a top plate of a basement at the next layer, and corresponding structural beams (3) are arranged.