CN215252982U - Pile group foundation pile top uniform stress conversion system - Google Patents
Pile group foundation pile top uniform stress conversion system Download PDFInfo
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- CN215252982U CN215252982U CN202120431562.7U CN202120431562U CN215252982U CN 215252982 U CN215252982 U CN 215252982U CN 202120431562 U CN202120431562 U CN 202120431562U CN 215252982 U CN215252982 U CN 215252982U
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Abstract
The utility model discloses an even atress conversion system in crowd's stake foundation pile bolck, conversion system comprises 4 layers of shaped steel at least, and every layer has 3 shaped steel at least, and the quadrature stack between every layer of shaped steel, the superiors shaped steel are used for supporting superstructure load, and the lower floor's shaped steel setting is on the pile bolck of crowd's stake. The utility model discloses construction convenience, with shaped steel layer upon layer orthogonal stack place on the pile bolck of pile foundation support superstructure, through the constant conversion distribution of back-off force between layer and layer, make at last evenly distributed to every pile bolck, solved because of the restriction of conditions such as headroom and under the condition that can not do pier stud cushion cap, the problem that the pile foundation of group directly bears the upper portion load; and for the steel pipe pile group foundation of the temporary structure, the conversion system can avoid manufacturing a large bearing platform, has high construction speed and simple and convenient assembly and disassembly, can recycle the removed section steel, reduces waste, and can meet the requirement of uniform stress of the pile group.
Description
Technical Field
The utility model relates to an even atress conversion system in group's pile foundation pile top.
Background
The pile group foundation generally faces the problem of uneven stress, a bearing platform with higher rigidity is generally required to be arranged on the pile top, and in the construction process, if the condition of clearance and the like limits that the bearing platform of the pier column cannot be made, the problem that the pile group foundation bears the upper load cannot be effectively solved, and the construction difficulty is increased to a certain extent; or when a temporary construction structure is encountered, the traditional concrete bearing platform has long construction period and is difficult to disassemble after use, so that the waste is large; if a steel structure bearing platform is used, the steel consumption is large and the hoisting is difficult.
If the pile top force transmission component is changed into a force transmission system that the stress of the upper structure is dispersed layer by overlapping multiple layers of rod pieces from the traditional large-volume bearing platform, the construction period can be effectively shortened, the construction difficulty is greatly reduced, and the temporary structure is relatively simple and much to disassemble. Moreover, the rod piece is generally made of national standard I-shaped steel or H-shaped steel, is easy to obtain, can be recycled after being disassembled, and reduces waste.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an even atress conversion system in crowd's pile foundation pile bolck for under the condition that can not do pier stud cushion cap because of condition restrictions such as headroom, the problem that the upper portion load was directly born to the crowd's pile foundation.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a group pile foundation pile top evenly receives force conversion system which characterized in that: the conversion system is composed of at least 4 layers of section steel, each layer is provided with at least 3 section steel, the section steel of each layer is orthogonally overlapped, the section steel of the uppermost layer is used for supporting the load of an upper structure, and the section steel of the lowermost layer is arranged on the top of the grouped piles.
Further, the section steel is I-shaped steel or H-shaped steel.
Furthermore, at least 3 layers of section steel are arranged in a stress structure of a simple supporting beam or a continuous beam.
Preferably, the side surfaces of the section steel are provided with stiffening ribs.
As a preferred embodiment of the present invention, the conversion system is composed of 5 layers of section steel;
the conversion system is formed by aligning and arranging 9 section steels from left to right from bottom to top on the first layer, the second layer is formed by aligning and arranging 6 section steels from front to back, the third layer is formed by aligning and arranging 6 section steels from left to right, the fourth layer is formed by aligning and arranging 11 section steels from front to back, and the fifth layer is formed by aligning and arranging 5 section steels from left to right.
Further, the first layer of section steel of the conversion system is divided into three groups on average, and each group of section steel is placed on the pile top of the pile group.
Furthermore, the second layer of section steel of the conversion system is averagely divided into two groups, each group of section steel is placed at two ends of the first layer of section steel, and the front end, the middle part and the rear end of each group of section steel of the second layer of section steel are correspondingly placed above the three groups of section steel of the first layer of section steel.
Further, the third layer shaped steel of conversion system averagely divides into two sets ofly, and every group shaped steel is placed at the both ends of second floor shaped steel, and the both ends correspondence of every group shaped steel of third layer shaped steel is placed in the top of two sets of shaped steel of second floor shaped steel.
Furthermore, two ends of the section steel of the fourth layer of the conversion system are correspondingly placed above the two groups of section steel of the third layer.
Further, the fifth layer of section steel of the conversion system is placed at a position in the middle of the fourth layer of section steel.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) the utility model discloses even atress conversion system in pile group foundation pile bolck, with I-steel or H shaped steel layer upon layer quadrature stack place the pile bolck of pile group foundation on support superstructure, make superstructure load distribute on the counter-force of first layer shaped steel, this counter-force is as the load of next layer shaped steel again, distribute on the counter-force of this layer shaped steel, through the continuous conversion distribution of counter-force between layer and layer, make at last evenly distributed on every pile bolck, under the condition restriction that can not do pier stud cushion cap because of conditions such as headroom, the problem that pile group foundation directly bore upper portion load is solved;
(2) to the steel pipe pile group basis of temporary structure, the utility model discloses conversion system can avoid making big cushion cap, and the construction speed is fast, installs and removes portably, but the shaped steel cyclic utilization after demolising reduces extravagantly, also can satisfy the even requirement of pile group atress simultaneously.
(3) The utility model discloses the atress mode with 3 at least layers of shaped steel sets up to simple beam or continuous beam for power of biography between every layer of shaped steel is simple, direct, and the load calculation is convenient.
(4) The utility model discloses still set up the stiffening rib in the side of shaped steel and can increase the off-plate rigidity, reduce the unstability risk.
Drawings
Fig. 1 is a schematic perspective view of an embodiment of the present invention;
fig. 2 is a schematic front view of the overall structure of an embodiment of the present invention;
fig. 3 is a schematic side view of the overall structure of the embodiment of the present invention.
In the figure: 1-section steel; 2-pile group; 3-a superstructure; 4-stiffening ribs.
Detailed Description
The technical solutions of the present invention will be described in detail below with reference to the accompanying drawings and examples so that those skilled in the art can better understand and implement the technical solutions of the present invention.
The utility model provides a conversion system as shown in figures 1-3, which is composed of 5 layers of section steel 1, wherein each layer of section steel 1 is orthogonally overlapped, a fifth layer of section steel 1 supports an upper structure 3, and the first layer of section steel 1 is placed on the pile top of a group of piles 2;
as shown in fig. 1, the first layer is formed by arranging 9 section steels 1 from left to right, and the 9 section steels 1 are averagely divided into 3 groups and placed on the pile tops of the grouped piles 2; the second layer is formed by arranging 6 section steels 1 from front to back, the 6 section steels 1 are averagely divided into two groups, and each group of section steels 1 are respectively arranged at two ends of the first layer of section steels 1; the third layer is formed by arranging 6 section steels 1 from left to right, the 6 section steels 1 are averagely divided into two groups, and each group of section steels 1 are respectively arranged at two ends of the section steel 1 of the second layer; the fourth layer is formed by aligning and arranging 11 section steels 1 from front to back and is arranged above the section steel 1 of the third layer; the fifth layer is formed by aligning 5 section steels 1 from left to right and is arranged above the fourth layer.
The first layer of section steel 1 is divided into three groups on average, and each group of section steel 1 is placed on the pile top of the grouped piles 2 respectively, so that each group of section steel 1 of the first layer of section steel 1 is in a stress mode of a continuous beam;
the second-layer section steel 1 is averagely divided into two groups, each group of section steel 1 is placed at two ends of the first-layer section steel 1, the front end, the middle part and the rear end of each group of section steel 1 of the second-layer section steel 1 are correspondingly placed above the three groups of section steel 1 of the first-layer section steel 1, equivalently, three supporting points are respectively provided at the front end, the middle part and the rear end of the second-layer section steel 1, so that each group of section steel 1 of the second-layer section steel 1 forms a stress mode of a continuous beam;
the third-layer section steel 1 is averagely divided into two groups, each group of section steel 1 is placed at two ends of the second-layer section steel 1, two ends of each group of section steel 1 of the third-layer section steel 1 are correspondingly placed above the two groups of section steel 1 of the second-layer section steel 1, equivalently, two ends of each group of section steel 1 of the third-layer section steel 1 are respectively provided with a fulcrum, and each group of section steel 1 of the third-layer section steel 1 forms a stress mode of a simply supported beam;
similarly, two ends of the fourth layer of section steel 1 are correspondingly placed above the two groups of section steel 1 of the third layer of section steel 1, which is equivalent to that two ends of the fourth layer of section steel 1 are respectively provided with a fulcrum, so that the fourth layer of section steel 1 also forms a stress mode of a simply supported beam;
the fifth layer of section steel 1 is arranged above the fourth layer of section steel 1 in an aligned mode and is arranged at a position corresponding to the middle of the fourth layer of section steel 1.
Each layer of section steel 1 in the embodiment is made of national standard I-shaped steel or H-shaped steel, the I-shaped steel or the H-shaped steel is relatively easy to obtain, and the I-shaped steel or the H-shaped steel can be recycled after being disassembled, so that waste is reduced.
Preferably, the side of each section steel 1 is provided with a stiffening rib 4, and the stiffening ribs 4 arranged on the side of the section steel 1 can increase the external rigidity and reduce the instability risk.
The utility model discloses a theory of operation: the H-shaped steel or H-shaped steel is formed by stacking I-shaped steel or H-shaped steel layers in an orthogonal mode, the load of an upper structure is distributed to the supporting reaction force of the first layer of section steel 1, the supporting reaction force is also used as the load of the next layer of section steel 1 and is distributed to the supporting reaction force of the layer of section steel 1, and the supporting reaction force between layers is continuously converted and distributed, so that the load is finally and uniformly distributed to the tops of all piles of the pile group 2.
The utility model discloses a conversion system can play the effect that lets the pile group foundation directly bear the upper portion load, and conversion system places on the pile bolck of pile group 2, is supporting superstructure with pile group 2 together, evenly distributes the pile bolck of every pile group 2 to superstructure's load, satisfies the even requirement of 2 atress of pile group.
The above-mentioned embodiment is only the preferred embodiment of the present invention, but can not be regarded as the restriction to the utility model, any change and improvement based on the inventive concept should fall into the protection scope of the present invention, and the specific protection scope is based on the claims.
Claims (10)
1. The utility model provides a group pile foundation pile top evenly receives force conversion system which characterized in that: the conversion system is composed of at least 4 layers of section steel, each layer is provided with at least 3 section steel, the section steel of each layer is orthogonally overlapped, the section steel of the uppermost layer is used for supporting the load of an upper structure, and the section steel of the lowermost layer is arranged on the top of the grouped piles.
2. The evenly stressed transfer system of a pile group foundation pile top of claim 1, wherein: the section steel is I-shaped steel or H-shaped steel.
3. The evenly stressed transfer system of a pile group foundation pile top of claim 2, wherein: at least 3 layers of section steel are arranged in a stress structure of a simple supporting beam or a continuous beam.
4. The evenly stressed transfer system of a pile group foundation pile top of claim 3, wherein: and stiffening ribs are arranged on the side surfaces of the section steel.
5. The evenly stressed transfer system of a pile group foundation pile top of claim 1, wherein: the conversion system consists of 5 layers of section steel;
the conversion system comprises a first layer, a second layer, a third layer, a fourth layer and a fifth layer from bottom to top, wherein the first layer is composed of 9 section steels, the second layer is composed of 6 section steels, the third layer is composed of 6 section steels, the fourth layer is composed of 11 section steels, and the fifth layer is composed of 5 section steels.
6. The evenly stressed transfer system of a pile group foundation pile top of claim 5, wherein: the first layer of section steel of the conversion system is divided into three groups on average, and each group of section steel is placed on the pile top of the grouped piles respectively.
7. The evenly stressed transfer system of a pile group foundation pile top of claim 6, wherein: the second layer of section steel of the conversion system is averagely divided into two groups, each group of section steel is placed at two ends of the first layer of section steel, and the front end, the middle part and the rear end of each group of section steel of the second layer of section steel are correspondingly placed above the three groups of section steel of the first layer of section steel.
8. The evenly stressed transfer system of a pile group foundation pile top of claim 7, wherein: the third-layer section steel of the conversion system is averagely divided into two groups, each group of section steel is placed at two ends of the second-layer section steel, and two ends of each group of section steel of the third-layer section steel are correspondingly placed above the two groups of section steel of the second-layer section steel.
9. The evenly stressed transfer system of a pile group foundation pile top of claim 8, wherein: and two ends of the fourth layer of section steel of the conversion system are correspondingly placed above the two groups of section steel of the third layer of section steel.
10. The evenly stressed transfer system of a pile group foundation pile top of claim 9, wherein: and the fifth layer section steel of the conversion system is placed in the middle of the fourth layer section steel.
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CN202120431562.7U CN215252982U (en) | 2021-02-25 | 2021-02-25 | Pile group foundation pile top uniform stress conversion system |
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CN202120431562.7U CN215252982U (en) | 2021-02-25 | 2021-02-25 | Pile group foundation pile top uniform stress conversion system |
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