CN214883824U - Pre-leveling tower foundation - Google Patents
Pre-leveling tower foundation Download PDFInfo
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- CN214883824U CN214883824U CN202121184202.8U CN202121184202U CN214883824U CN 214883824 U CN214883824 U CN 214883824U CN 202121184202 U CN202121184202 U CN 202121184202U CN 214883824 U CN214883824 U CN 214883824U
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Abstract
The utility model discloses a tower footing basis of making level in advance, include: a reinforcement cage; the supporting steel bars are arranged on the steel bar cage at intervals, and the upper surfaces of the supporting steel bars are positioned on the same horizontal plane; the fixed die is assembled above the reinforcement cage, and the lower surface of the fixed die is contacted with the upper surface of the support reinforcement; a plurality of adjusting bolts are arranged on the reinforcement cage at intervals; the leveling steel plates are arranged at the tops of the adjusting bolts at intervals, the leveling steel plates are positioned below the fixed die, and the upper surfaces of the leveling steel plates are positioned on the same horizontal plane; a plurality of foundation bolts sequentially penetrate through the leveling steel plate and the fixed die from bottom to top; and the concrete layer is poured on the reinforcement cage, and the upper surface of the concrete layer is flush with the upper surface of the leveling steel plate. The utility model provides a follow-up loaded down with trivial details of making level of foundation among the prior art, influence the technical problem of holding surface stability.
Description
Technical Field
The utility model relates to a tower crane auxiliary assembly technical field especially relates to a tower footing basis of making level in advance.
Background
In recent years, with the continuous development of the building industry in China, high-rise group buildings are built in large and medium cities increasingly, factors such as reduction of secondary carrying of building materials, transportation distance in a field and the like are considered, a tower crane is often erected beside a main building, the conventional tower crane foundation is generally made of concrete, then the conventional tower crane foundation is connected with the connecting end of a tower crane foundation section through foundation bolts embedded in concrete, and in order to level, a fine stone leveling layer is usually required to be constructed to ensure the level of the upper surface of the concrete, so that time and labor are consumed, and the efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a column foot basis of making level in advance has solved among the prior art the follow-up loaded down with trivial details of making level of column foot, influences the technical problem of holding surface stability.
The embodiment of the application discloses column foot basis of making level in advance includes:
a reinforcement cage;
the supporting steel bars are arranged on the steel bar cage at intervals, and the upper surfaces of the supporting steel bars are positioned on the same horizontal plane;
the fixed die is assembled above the reinforcement cage, and the lower surface of the fixed die is in contact with the upper surface of the supporting reinforcement;
the adjusting bolts are arranged on the reinforcement cage at intervals;
the leveling steel plates are arranged at the tops of the adjusting bolts at intervals, the leveling steel plates are positioned below the fixed die, and the upper surfaces of the leveling steel plates are positioned on the same horizontal plane;
a plurality of foundation bolts sequentially penetrate through the leveling steel plate and the fixed die from bottom to top;
and the concrete layer is poured on the reinforcement cage, and the upper surface of the concrete layer is flush with the upper surface of the leveling steel plate.
According to the embodiment of the application, the leveling steel plate is pre-buried to replace subsequent leveling, so that the leveling step is simple and convenient, the weight of the leveling steel plate is light, the operation is convenient, and the concrete below the steel plate is reliably ensured not to be crushed; meanwhile, the leveling steel plate has a certain plane area, and the whole elevation of the steel plate is easier to control during leveling.
On the basis of the technical scheme, the embodiment of the application can be further improved as follows:
furthermore, every four rag bolts are correspondingly installed to the steel sheet of making level, and the beneficial effect who adopts this step is the stability of the steel sheet of guaranteeing to make level.
Furthermore, each leveling steel plate corresponds to four adjusting bolts, and the beneficial effect of the step is that the leveling is convenient.
Furthermore, the supporting steel bars are in an inverted U shape, and the beneficial effects of the step are that the upper surfaces of the supporting steel bars can be ensured to be horizontal, and the fixed die can be conveniently placed.
Furthermore, the middle part of the leveling steel plate is provided with the vibrating hole, and the beneficial effect of the step is to ensure that the concrete below the leveling steel plate can be tamped, so that the stability is improved.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
1. according to the embodiment of the application, the pre-buried leveling steel plate replaces subsequent leveling, so that the operation is convenient, and the concrete below the steel plate is reliably ensured not to be crushed; and the leveling steel plate has a certain plane area, and the whole elevation of the leveling steel plate is easier to control during leveling.
2. The size of the leveling steel plate in the embodiment of the application can be properly increased according to the lifting tonnage of the upper tower crane, so that the protection effect of the large-tonnage tower crane on the concrete of the foundation bearing platform is improved,
3. according to the embodiment of the application, the steel plate is quickly leveled by marking the foundation bolt; then, the steel plate elevation is accurate through a level gauge and a lower adjusting bolt; when concrete is poured, the influence of the concrete pouring on the embedding precision is observed in real time through the marked positions on the foundation bolts; after the form is removed, the leveling steel plate elevation is checked again through the level gauge, so that the operation steps are simplified, and the working efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a pre-leveled tower foundation according to an embodiment of the present invention;
FIG. 2 is a top view of a pre-leveled tower foundation according to an embodiment of the present invention;
fig. 3 is an enlarged schematic view of a part a of a pre-leveled tower footing foundation according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a leveling steel plate of a pre-leveled tower foundation according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a support reinforcement of a pre-leveled tower footing foundation according to an embodiment of the present invention;
reference numerals:
1-a reinforcement cage; 2-supporting the reinforcing steel bars; 3-fixing the mould; 4-adjusting the bolt; 5-leveling a steel plate; 6-foundation bolts; 7-a concrete layer; 8-vibrating the hole.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.
The utility model provides a tower footing basis of making level in advance has solved among the prior art the follow-up loaded down with trivial details of making level of tower footing, influences the technical problem of holding surface stability.
The general idea of the embodiment of the application is as follows: the steel sheet of making level is buried underground in advance to the inside of the supporting surface, and specific structure guarantees simultaneously that the upper surface of the steel sheet of making level is in same horizontal plane, then pours, waits to solidify the back form removal again, and the upper surface of the steel sheet of making level like this is same horizontal plane, the installation of the follow-up tower crane of being convenient for.
In order to better understand the technical solutions, the technical solutions will be described in detail below with reference to the drawings and the detailed description.
Example 1:
as shown in fig. 1-4, the present application discloses a pre-leveled tower foundation, comprising:
the steel reinforcement cage 1 is bound by a plurality of steel reinforcements, and when the steel reinforcement cage 1 is bound, enough stability needs to be ensured, and an operation space is arranged in the steel reinforcement cage;
the supporting steel bars 2 are arranged on the steel bar cage 1 at intervals, the upper surfaces of the supporting steel bars 2 are positioned on the same horizontal plane, and the supporting steel bars 2 are used for supporting a subsequent fixed die;
fixed mould 3, assemble in 1 side on the steel reinforcement cage, just the lower surface of fixed mould 3 with the last surface contact of support reinforcement 2, the fixed mould 8 assembly of follow-up tower crane of being convenient for in this application embodiment.
The adjusting bolts 4 are arranged on the reinforcement cage 1 at intervals, the foundation bolts 4 are used for installing the leveling steel plate 3, the upper surface of the leveling steel plate 3 is ensured to be in the same horizontal plane, and the leveling steel plate can be stable, and the adjusting bolts 4 are specifically installed by welding adjusting nuts on the reinforcement cage 1 and then installing the adjusting bolts 4;
the leveling steel plates 5 are arranged at the tops of the adjusting bolts 4 at intervals, the leveling steel plates 5 are positioned below the fixed die 3, and the upper surfaces of the leveling steel plates 5 are positioned on the same horizontal plane; after leveling, the leveling steel plate 3 can realize the horizontal plane of a subsequent foundation surface;
a plurality of foundation bolts 6 sequentially penetrate through the leveling steel plate 5 and the fixed die 3 from bottom to top, the installation of the leveling steel plate 5 can be completed through the foundation bolts 6, and meanwhile, the subsequent leveling of the leveling steel plate 5 is facilitated;
the concrete layer 7 is poured on the reinforcement cage 1, and the upper surface of the concrete layer 7 is flush with the upper surface of the leveling steel plate 5, so that the stability of the whole structure is ensured, and meanwhile, the leveling steel plate 3 is ensured to be positioned on the horizontal plane;
specifically, four foundation bolts 4 are correspondingly installed on each leveling steel plate 3, each leveling steel plate 3 corresponds to four adjusting bolts 2, four corners of each leveling steel plate 3 in the embodiment of the application correspond to the tops of the four adjusting bolts 2 respectively, and the adjusting bolts 2 are 50-100mm away from the nearest edge of the leveling steel plate, so that a reinforcing steel bar near a leveling nut can be fixed by a welding machine, and the elevation can be controlled more conveniently during leveling; the adjusting nut is matched with the 2 threads of the adjusting bolt and welded with the steel reinforcement cage, and the adjusting bolt is screwed into the adjusting nut for a certain distance and used for supporting and leveling the leveling steel plate.
Specifically, in the present embodiment, the support bar 2 is formed in an inverted U-shape, so that the fixed die can be easily placed.
Specifically, the hole of vibrating 8 has been seted up at the middle part of the steel sheet of making level 3, and the hole of vibrating 8 in this application embodiment can ensure that the lower concrete of the steel sheet of making level 3 is closely knit.
The embodiment of the application also discloses a construction method of the pre-leveling tower footing foundation, which comprises the following steps:
step S1: binding the foundation steel bars to form a steel bar cage with good stability and an operation space reserved inside; the reinforcement cage is convenient for the subsequent embedding of foundation bolts;
step S2: assembling a fixed die on the reinforcement cage, mounting a plurality of supporting reinforcements on the reinforcement cage at intervals, welding two legs of the supporting reinforcements with main reinforcements of the reinforcement cage, ensuring the top surfaces of all the supporting reinforcements to be horizontal, ensuring that the error is not more than 5mm, and finally placing the fixed die on the supporting reinforcements;
step S3: a plurality of adjusting nuts are arranged on the main reinforcement of the reinforcement cage at intervals, adjusting bolts are arranged on the adjusting nuts, and a leveling steel plate is placed on the adjusting bolts and is positioned below the fixed die; specifically, the bottom of each leveling steel plate is correspondingly provided with four adjusting bolts, the four adjusting bolts are positioned at the four corners of the leveling steel plate, and the top of each adjusting bolt is 50-100mm away from the edge of the closest leveling steel plate, so that a reinforcing steel bar near a leveling nut can be ensured to be fixed by a welding machine, and the elevation can be more conveniently controlled during leveling; the adjusting nut is matched with the adjusting bolt threads and welded with the steel reinforcement cage, and the adjusting bolt is screwed into the adjusting nut for a certain distance and used for supporting and leveling the leveling steel plate.
Step S4: after the leveling steel plate is assembled, foundation bolts are installed, are arranged in the steel reinforcement cage, penetrate through the leveling steel plate and the fixed mold from bottom to top and are installed on a limiting sleeve of the fixed mold when penetrating through the foundation bolts, and accordingly the protruding heights are guaranteed to be consistent; before assembling the foundation bolts, marking the foundation bolts at the same height, namely marking the foundation bolts at the same height, so as to facilitate subsequent leveling; after the foundation bolts are assembled, the length of the adjusting bolts screwed into the adjusting nuts is changed by rotating the adjusting bolts, and leveling is carried out by taking the marks on the foundation bolts and the upper surface of the leveling steel plate as a standard; the leveling of each leveling steel plate follows the following standards: after the adjusting bolts at one corner are adjusted, adjusting the adjusting bolts at the opposite corners, and then adjusting the adjacent adjusting bolts; the adjustment of all leveling steel plates follows the following criteria: after one leveling steel plate is adjusted, adjusting the diagonal leveling steel plates, and then adjusting the adjacent leveling steel plates; after leveling, checking the height of each leveling steel plate by using a level gauge, wherein the flatness of a plane formed by each leveling steel plate is not more than 2mm, adjusting the deviated leveling steel plates by repeating the previous step, and marking the mark position on the foundation bolt again (eliminating the placement error of the fixed mold and the error of the depth of the foundation bolt screwed into the fixed mold by using the level gauge as an external reference system); finally, leveling all the leveling steel plates; after leveling, welding and fixing the adjusting bolt and the adjusting nut, and welding and anchoring the adjusting bolt and the leveling layer; and then welding and anchoring the lower part of the foundation bolt.
Step S5: mixed soil is poured, and then the mould is removed to finish construction; the installation of tower crane foundation section can be directly carried out, and the work of making level need not to be carried out again. When concrete is poured, the fixed die and the foundation bolts are required to be ensured not to move, deviate and sink, the influence of the concrete pouring on the embedding precision is observed in real time through the marked positions on the foundation bolts, and the problem can be timely treated when the problem is found; the concrete under the steel plate is ensured to be compact by leveling the vibrating holes on the steel plate; and (3) removing the formwork too early, removing and leveling concrete on the surface of the steel plate after the formwork is removed, checking the elevation of the leveling steel plate by the level gauge again, and ensuring that the levelness of the fixed base section after installation is less than 1/750 and the perpendicularity error between the central line and the horizontal plane is 15/1000 by adding steel gaskets below the supporting legs at most.
The quantity of the steel sheet of making level in this application embodiment is unanimous with the quantity of tower crane foundation festival landing leg, generally is 4, and as the fixed tower crane basis that the distance is not more than 3m between the vertical axis of adjacent tower crane foundation festival landing leg, specific size can be 500mm, also can select according to actual need, for example when the distance is greater than 3m between the vertical axis of adjacent tower crane foundation festival landing leg, use 600 mm's the steel sheet of making level, nevertheless the distance of the steel sheet outward flange of making level to basic cushion cap edge should not be less than 250 mm.
In the specification of the present invention, a large number of specific details are explained. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (5)
1. A pre-leveled tower foundation, comprising:
a reinforcement cage;
the supporting steel bars are arranged on the steel bar cage at intervals, and the upper surfaces of the supporting steel bars are positioned on the same horizontal plane;
the fixed die is assembled above the reinforcement cage, and the lower surface of the fixed die is in contact with the upper surface of the supporting reinforcement;
the adjusting bolts are arranged on the reinforcement cage at intervals;
the leveling steel plates are arranged at the tops of the adjusting bolts at intervals, the leveling steel plates are positioned below the fixed die, and the upper surfaces of the leveling steel plates are positioned on the same horizontal plane;
a plurality of foundation bolts sequentially penetrate through the leveling steel plate and the fixed die from bottom to top;
and the concrete layer is poured on the reinforcement cage, and the upper surface of the concrete layer is flush with the upper surface of the leveling steel plate.
2. The pre-leveled foundation footing according to claim 1, wherein four anchor bolts are installed on each leveling steel plate.
3. The pre-leveled tower foundation according to claim 1, wherein each leveling steel plate corresponds to four adjusting bolts.
4. The pre-leveled tower foundation according to claim 1, wherein the support bars are inverted U-shaped.
5. The pre-leveled tower foundation according to any of claims 1-4, wherein the middle of the leveling steel plate is provided with vibrating holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121184202.8U CN214883824U (en) | 2021-05-28 | 2021-05-28 | Pre-leveling tower foundation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121184202.8U CN214883824U (en) | 2021-05-28 | 2021-05-28 | Pre-leveling tower foundation |
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| CN214883824U true CN214883824U (en) | 2021-11-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113293790A (en) * | 2021-05-28 | 2021-08-24 | 江苏扬建集团有限公司 | Pre-leveling tower foundation and leveling construction method thereof |
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- 2021-05-28 CN CN202121184202.8U patent/CN214883824U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113293790A (en) * | 2021-05-28 | 2021-08-24 | 江苏扬建集团有限公司 | Pre-leveling tower foundation and leveling construction method thereof |
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