CN210766841U - Underground pile foundation structure - Google Patents

Abstract

The utility model discloses an underground pile foundation structure, which comprises a beam frame, wherein the beam frame comprises a first row of beams, a second row of beams and a third row of beams, the third row of beams is provided with at least one beam, and two ends of the third row of beams are respectively connected with the first row of beams and the second row of beams; and the pile cap is provided with a plurality of supporting beam frames and is arranged at the lower ends of the first row of beams, the second row of beams and the third row of beams, and the pile cap is also arranged at the lower end position of the middle part of the first row of beams or the lower end position of the middle part of the second row of beams or the lower end position of the middle part of the third row of beams. During construction, because the middle part of the first row of beams is provided with the pile cap, the integral supporting performance of the first row of beams is improved, the section size and the thickness of the first row of beams are not required to be particularly large in the construction of a large-span factory building, the construction difficulty is reduced, the construction cost is reduced, and the second row of beams and the third row of beams are the same in principle.

Description

Underground pile foundation structure

Technical Field

The utility model relates to a building design technical field of large-span factory building especially relates to an underground pile foundation structure.

Background

The superstructure of a large-span factory building is usually made of a steel structure, and the first floor slab and the underground foundation are made of reinforced concrete structures. In the traditional design, the structure of the first floor slab adopts a concrete beam slab structure system, so the force transmission path of the floor load is approximately: floor → roof beam → post → basis, the dead weight load of floor load and beam slab post component is whole to be transmitted to the column foundation at first floor girder both ends to lead to the cross sectional dimension and the thick size of board of first floor roof beam all can be very big in the large-span factory building, and increase the construction degree of difficulty, also make engineering cost on the high side.

SUMMERY OF THE UTILITY MODEL

Based on this, it is necessary to provide an underground pile structure. In the underground pile foundation structure, the section size of the beam does not need to be large, the construction difficulty is reduced, and the construction cost is also reduced.

The technical scheme is as follows:

an underground pile foundation structure comprises a beam frame, wherein the beam frame comprises a first row of beams, a second row of beams and a third row of beams, at least one third row of beams is arranged, and two ends of the third row of beams are respectively connected with the first row of beams and the second row of beams; and the pile cap is provided with a plurality of supporting beam frames and is arranged at the lower ends of the first row beams, the second row beams and the third row beams, the lower end position of the middle part of the first row beams is also provided with the pile cap, the lower end position of the middle part of the second row beams is also provided with the pile cap, and the lower end position of the middle part of the third row beams is also provided with the pile cap.

When carrying out the building construction of large-span factory building, adopt above-mentioned underground pile foundation structure, first row roof beam, the lower extreme of second row roof beam and third row roof beam all is equipped with pile cap, with the whole roof beam structure of supporting, because the middle part of first row roof beam is equipped with pile cap, thereby promote the integral supporting performance of first row roof beam, and need not in the construction of large-span factory building with the sectional dimension and the thickness of first row roof beam all do very big, and then reduced the construction degree of difficulty, the engineering cost has also been reduced, second row roof beam and third row roof beam are on the same principle.

The technical solution is further explained below:

in one embodiment, the lower end of the first column beam is correspondingly provided with at least three pile cap platforms arranged at intervals;

or the lower end of the second column beam is correspondingly provided with at least three pile cap platforms arranged at intervals;

or the lower end of the third row of beams is correspondingly provided with at least three pile cap platforms which are arranged at intervals.

In one embodiment, there are two third columns of beams, two third columns of beams are respectively arranged at two ends of the first column of beams or two ends of the second column of beams, the underground pile foundation structure further comprises a fourth column of beams, the fourth column of beams are located between the first column of beams and the second column of beams, and two ends of the fourth column of beams are connected with the corresponding third columns of beams.

In one embodiment, at least three pile cap platforms are arranged at the lower end of the fourth row of beams at intervals.

In one of the embodiments the pile cap comprises a cap and a pile foundation for supporting the cap, the lower end of the first row of beams or the lower end of the second row of beams or the lower end of the third row of beams or the lower end of the fourth row of beams being supported on the cap.

In one embodiment, the pile cap further comprises a steel column, which is arranged at a distance from the pile foundation on the cap and is used for supporting the cap.

In one embodiment, the pile foundations are prefabricated pipe piles, and at least one pile foundation is correspondingly arranged on one bearing platform.

In one embodiment, one pile foundation is correspondingly arranged on one bearing platform to form a single pile bearing platform;

two pile foundations are correspondingly arranged on one bearing platform, and are arranged on the bearing platform at intervals to form a double-pile bearing platform;

three pile foundations are correspondingly arranged on one bearing platform, and are arranged on the bearing platform at intervals to form a three-pile bearing platform.

In one embodiment, the third pile cap is arranged at the lower end position of the middle part of the first row of beams, or at the lower end position of the middle part of the second row of beams, or at the lower end position of the middle part of the third row of beams.

In one embodiment, the double-pile bearing platform is arranged at the position corresponding to the lower end of the joint of the first row of beams and the third row of beams;

or the double-pile bearing platform is arranged at the corresponding position of the lower end of the joint of the second row of beams and the third row of beams;

or the double-pile bearing platform is arranged at the corresponding position of the lower end of the joint of the fourth row of beams and the third row of beams;

or the lower part of the first column beam is correspondingly provided with at least one single-pile bearing platform;

or the lower part of the second row of beams is correspondingly provided with at least one single-pile bearing platform;

or the lower part of the third row of beams is correspondingly provided with at least one single-pile bearing platform;

or the lower part of the fourth column beam is correspondingly provided with at least one single pile bearing platform.

Drawings

Fig. 1 is an overall plan view of an underground pile foundation structure in an embodiment;

FIG. 2 is a block diagram of a single pile cap of the embodiment of FIG. 1;

FIG. 3 is a block diagram of the double pile cap of the embodiment of FIG. 1;

fig. 4 is a block diagram of the three pile cap of the embodiment of fig. 1.

Reference is made to the accompanying drawings in which:

110. the beam comprises a first column of beams, 120, a second column of beams, 130, a third column of beams, 140, a fourth column of beams, 201, a bearing platform, 202, a pile foundation, 203, a steel column, 210, a single-pile bearing platform, 220, a double-pile bearing platform, 230 and a three-pile bearing platform.

Detailed Description

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings:

it will be understood that when an element is referred to herein as being "secured" to another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, the underground pile foundation structure includes a beam frame including a first row of beams 110, a second row of beams 120, and a third row of beams 130, at least one third row of beams 130 is provided, and both ends of the third row of beams 130 are connected to the first row of beams 110 and the second row of beams 120, respectively; and the pile cap is provided with a plurality of supporting beam frames and is arranged at the lower ends of the first row of beams 110, the second row of beams 120 and the third row of beams 130, the lower end position of the middle part of the first row of beams 110 is also provided with the pile cap, the lower end position of the middle part of the second row of beams 120 is also provided with the pile cap, and the lower end position of the middle part of the third row of beams 130 is also provided with the pile cap.

When carrying out the building construction of large-span factory building, adopt this underground pile foundation structure, first row roof beam 110, the lower extreme of second row roof beam 120 and third row roof beam 130 all is equipped with the pile cap, with whole roof beam structure is played in the support, because the middle part of first row roof beam 110 is equipped with the pile cap, thereby promote the whole bearing performance of first row roof beam 110, and need not in the construction of large-span factory building with the cross-sectional dimension and the thickness of first row roof beam 110 all do big very much, and then reduced the construction degree of difficulty, engineering cost has also been reduced, second row roof beam 120 and third row roof beam 130 are in the same reason.

Usually, when carrying out the building construction of large-span factory building, because the floor part on the first floor is all transmitted to the building atress of overground part, the floor transmits the beam column structure of underground pile foundation structure, thereby finally transmit for underground foundation structure, because this atress is great, consequently, the cross sectional dimension of the roof beam of underground pile foundation structure is done very big usually, and thickness needs very thick, in order to play the effect of bearing this atress, and guarantee the structural safety nature of building, however, not only increased construction cost like this, still make engineering cost too high.

In the embodiment, the pile cap is further arranged in the middle of the first column beam 110, the bearing effect of the first column beam 110 is improved through the bearing acting force of the pile cap, the bearing requirement can be met even if the size of the first section is small, and the pile cap can be supported below the first column beam 110 to bear the stress of the first column beam 110 even if the first column beam 110 is long to meet the construction requirement of a large-span plant; the second column of beams 120 and the third column of beams 130 are similar and will not be described again.

It should be noted that: the beam frame here refers to a frame structure constructed by beam structures, for example, the first column of beams 110, the second column of beams 120 and the two third columns of beams 130 can be constructed to form a quadrilateral frame structure, or the first column of beams 110, the second column of beams 120 and the third column of beams 130 can be matched with additional support walls to form a frame structure; in addition, the names of the first column beam 110, the second column beam 120, and the third column beam 130 are for illustration only, and they may be beam structures required in large-span plant construction, or beam structures with ordinary length, and are not described herein again.

In fig. 1:

the lower end of the first column beam 110 is correspondingly provided with at least three pile cap platforms which are arranged at intervals.

The lower end of the second column beam 120 is correspondingly provided with at least three pile cap platforms which are arranged at intervals.

The lower end of the third row of beams 130 corresponds to at least three pile caps arranged at intervals.

A plurality of pile caps at the lower end of the first column beam 110 are arranged at equal intervals; a plurality of pile caps at the lower end of the second row beam 120 are arranged at equal intervals; the pile caps at the lower end of the third row of beams 130 are arranged at equal intervals to provide better supporting function.

Referring to fig. 1, there are two third columns of beams 130, two third columns of beams 130 are respectively disposed at two ends of the first column of beams 110 or two ends of the second column of beams 120, the underground pile foundation structure further includes a fourth column of beams 140, the fourth column of beams 140 is disposed between the first column of beams 110 and the second column of beams 120, and two ends of the fourth column of beams 140 are connected to the corresponding third columns of beams 130.

In fig. 1, a first column of beams 110, a second column of beams 120, and two third columns of beams 130 cooperate to form a square frame, and a fourth column of beams 140 is located within the square frame. The fourth column of beams 140 reduces the distance between the first column of beams 110 and the second column of beams 120, so that the span length of the first floor slab can be reduced, the thickness of the first floor slab can be reduced, and the production cost can be reduced.

In addition, the fourth row beam 140 is also provided to share the supporting load of the first row beam 110, the second row beam 120, and the third row beam 130, thereby improving the overall supporting performance.

Referring to fig. 1, at least three pile caps are spaced at the lower end of the fourth row beam 140. The lower end of the fourth row beam 140 is provided with a plurality of pile caps to support the first floor.

Referring to fig. 1 to 4, the pile cap includes a cap 201 and a pile foundation 202 for supporting the cap 201, and the lower end of the first row beam 110 or the lower end of the second row beam 120 or the lower end of the third row beam 130 or the lower end of the fourth row beam 140 is supported on the cap 201.

The pile foundation 202 supports a cap 201 thereon, and the first, second, third and fourth rows of beams 110, 120, 130, 140 are all supported on the corresponding cap 201.

Referring to fig. 1 to 4, the pile foundations 202 are prefabricated pipe piles, and at least one pile foundation 202 is correspondingly disposed on one bearing platform 201.

The precast tubular pile may be a prestressed tubular pile.

Referring to fig. 2, a pile foundation 202 is correspondingly installed on a platform 201, and a single pile platform 210 is formed.

Referring to fig. 3, two pile foundations 202 are correspondingly disposed on one pile cap 201, and the two pile foundations 202 are disposed on the pile cap 201 at intervals to form a double-pile cap 220.

Referring to fig. 4, three pile foundations 202 are correspondingly disposed on one bearing platform 201, and the three pile foundations 202 are disposed on the bearing platform 201 at intervals to form a three-pile bearing platform 230.

Referring to fig. 1, a three-pile cap 230 is disposed at a lower end of the middle portion of the second row beam 120.

Of course, as necessary, the following may be also possible: the three-pile cap 230 is arranged at the lower end position of the middle part of the first row of beams 110 or the lower end position of the middle part of the third row of beams 130, so that the specific position of the three-pile cap 230 is set according to actual needs, and the stress bearing requirements of different positions are met.

Referring to fig. 1, the double pile cap 220 is disposed at a position corresponding to a lower end of a connection between the first row of beams 110 and the third row of beams 130.

Referring to fig. 1, the double pile cap 220 is disposed at a position corresponding to a lower end of a connection between the second row beam 120 and the third row beam 130.

Referring to fig. 1, the double pile cap 220 is disposed at a position corresponding to a lower end of a connection between the fourth row beam 140 and the third row beam 130.

Referring to fig. 1, at least one single pile cap 210 is correspondingly disposed at a lower portion of the first row of beams 110.

Referring to fig. 1, at least one single pile cap 210 is correspondingly disposed at a lower portion of the second row of beams 120.

Referring to fig. 1, at least one single pile cap 210 is correspondingly disposed at a lower portion of the third row of beams 130.

Referring to fig. 1, at least one single pile cap 210 is correspondingly disposed at a lower portion of the fourth row of beams 140.

It should be noted that fig. 1 shows only one arrangement, and according to specific stress and construction requirements, corresponding single pile cap 210, double pile cap 220 and triple pile cap 230 may be arranged at different positions of the lower end of the beam frame to meet the support requirement.

Of course, in terms of bearing capacity, the bearing capacity of the triple-pile cap 230 is greater than that of the double-pile cap 220, and the bearing capacity of the double-pile cap 220 is greater than that of the single-pile cap 210; of course, four pile support platforms and the like can be arranged according to needs, and are not described in detail.

Referring to fig. 1, the pile cap further includes a steel column 203, and the steel column 203 and the pile foundation 202 are spaced apart from each other and disposed on the cap 201 for supporting the cap 201.

The steel column 203 is correspondingly disposed at the middle position of the platform 201 to perform a supporting function, which is not described again.

With the underground pile foundation structure provided by the embodiment, the cross-sectional sizes of the first column of beams 110 and the second column of beams 120 are reduced, and the span can be 6m-8 m.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. An underground pile foundation structure, comprising:

the beam frame comprises a first column of beams, a second column of beams and a third column of beams, at least one third column of beams is arranged, and two ends of the third column of beams are respectively connected with the first column of beams and the second column of beams; and

the pile cap is provided with a plurality of beam frames and used for supporting the beam frames, the pile cap is arranged at the lower ends of the first row of beams, the second row of beams and the third row of beams, the lower end position of the middle part of the first row of beams is also provided with the pile cap, or the lower end position of the middle part of the second row of beams is also provided with the pile cap, or the lower end position of the middle part of the third row of beams is also provided with the pile cap.

2. An underground pile foundation structure according to claim 1, wherein the lower end of the first column of beams corresponds to at least three of the pile caps arranged at intervals;

or the lower end of the second column beam is correspondingly provided with at least three pile cap platforms which are arranged at intervals;

or the lower end of the third row of beams is correspondingly provided with at least three pile cap platforms which are arranged at intervals.

3. An underground pile foundation structure according to claim 2, wherein there are two beams of the third row, two beams of the third row are respectively provided at both ends of the first row of beams or both ends of the second row of beams, and the underground pile foundation structure further comprises a fourth row of beams, the fourth row of beams is located between the first row of beams and the second row of beams, and both ends of the fourth row of beams are connected with the corresponding beams of the third row.

4. An underground pile foundation structure according to claim 3, wherein the lower ends of the fourth row of beams are provided with at least three pile caps at intervals.

5. An underground pile foundation structure according to claim 4, wherein the pile cap comprises a cap and a pile foundation for supporting the cap, the lower end of the first or second row of beams or the lower end of the third or fourth row of beams being supported on the cap.

6. An underground pile foundation structure as claimed in claim 5, wherein the pile cap further includes steel columns spaced from the pile foundation and provided on the cap for supporting the cap.

7. An underground pile foundation structure according to claim 5, wherein the pile foundations are precast tubular piles, and at least one of the pile foundations is correspondingly provided to one of the pile foundations.

8. An underground pile foundation structure according to any one of claims 5 to 7, wherein one of the pile foundations is provided for one of the piles and forms a single pile cap;

two pile foundations are correspondingly arranged on one bearing platform, and are arranged on the bearing platform at intervals to form a double-pile bearing platform;

and three pile foundations are correspondingly arranged on one bearing platform and are arranged on the bearing platform at intervals to form three pile bearing platforms.

9. An underground pile foundation structure according to claim 8, wherein the third pile cap is provided at a lower end position of the middle portion of the first row of beams or at a lower end position of the middle portion of the second row of beams or at a lower end position of the middle portion of the third row of beams.

10. An underground pile foundation structure according to claim 8, wherein the double pile cap is provided at a position corresponding to the lower end of the connection between the first row of beams and the third row of beams;

or the double-pile bearing platform is arranged at the position corresponding to the lower end of the joint of the second row beam and the third row beam;

or the double-pile bearing platform is arranged at the position corresponding to the lower end of the joint of the fourth row beam and the third row beam;

or the lower part of the first column beam is correspondingly provided with at least one single-pile bearing platform;

or the lower part of the second row beam is correspondingly provided with at least one single-pile bearing platform;

or the lower part of the third row of beams is correspondingly provided with at least one single-pile bearing platform;

or the lower part of the fourth column beam is correspondingly provided with at least one single-pile bearing platform.

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