CN209760323U - Pile foundation off normal cushion cap roof beam reinforced structure - Google Patents
Pile foundation off normal cushion cap roof beam reinforced structure Download PDFInfo
- Publication number
- CN209760323U CN209760323U CN201920107315.4U CN201920107315U CN209760323U CN 209760323 U CN209760323 U CN 209760323U CN 201920107315 U CN201920107315 U CN 201920107315U CN 209760323 U CN209760323 U CN 209760323U
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- CN
- China
- Prior art keywords
- cushion cap
- roof beam
- slab band
- pile foundation
- cap roof
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a pile foundation off normal cushion cap roof beam reinforced structure, cushion cap roof beam and cushion cap roof beam one side that corresponds including the pile foundation off normal set up the concrete slab band of certain width and thickness, pile foundation off normal cushion cap roof beam is the cushion cap roof beam that corresponds off normal stake upper portion, the concrete slab band is the concrete slab band that pile foundation off normal cushion cap roof beam one side set up, set up in the concrete slab band and follow the atress reinforcing bar of choosing is gone out to cushion cap roof beam bottom side, the atress reinforcing bar sets up in the lower part of concrete slab band, the cushion cap roof beam with concrete slab band bottom surface elevation is the same. The utility model has the advantages of, need not handle the arrangement of reinforcement of the complicated cushion cap roof beam of atress and reach the purpose of consolidating the cushion cap roof beam, the design simple structure has effectively utilized the counter-force of soil layer under the cushion cap, material saving.
Description
Technical Field
The utility model belongs to the technical field of building engineering basis reinforcement design technique and specifically relates to an off normal to the pile foundation construction causes, a design reinforced structure to cushion cap roof beam adoption.
Background
When building houses on soft soil foundation, because foundation bearing capacity is small, pile foundation is usually selected in order to meet the requirements of load of buildings or foundation deformation. The wall bearing house has the advantages that the longitudinal and transverse walls are relatively dense, the load distribution is uniform, and the design requirements can be met by arranging the single-row piles along the axis according to a certain distance under the condition of meeting the requirement of the pile distance. The pile top is designed into a beam-type bearing platform for bearing the upper wall body and transferring load to the pile foundation. The precast pile or the pipe-sinking cast-in-place pile is a commonly selected pile type, but in the construction process, the pile foundation is often deviated due to factors such as soil extrusion of the pile body, process operation and the like. The deviation along the axis only affects the size of the pile spacing, the upper load still acts on the plane of the pile row, the influence on the stress of the bearing platform beam is small, and the deviation can reach 150mm according to the acceptance specification. However, if there is a lateral off-axis misalignment of the pilings, a torque is applied to the cap beam due to misalignment of the upper load and the pile axis. At present, no solution to this problem is explicitly proposed in relation to the basic design specifications. In the design stage, a designer usually modifies a construction drawing by adopting measures of enlarging the section of a corresponding bearing platform beam and increasing torsion-resistant steel bars for the pile with the pile position deviation exceeding a standard value according to a pile test report. The technique for reinforcing the bearing platform beam does not consider the beneficial influence of the bearing capacity of the bearing platform bottom soil layer, is complex in calculation, has certain blindness and is high in manufacturing cost.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a simple structure, design and construction convenience, the additional structure of curb plate of cushion cap roof beam solve wall body bearing house and consolidate design, the atress again and handle complicated problem because of the cushion cap roof beam that pile foundation construction off normal caused.
In order to solve the technical problem, the utility model discloses a realize through following technical scheme: the utility model provides a pile foundation off normal cushion cap roof beam reinforced structure, includes that pile foundation off normal cushion cap roof beam and cushion cap roof beam one side that corresponds set up the concrete slab band of certain width and thickness, pile foundation off normal cushion cap roof beam is the cushion cap roof beam that corresponds off normal stake upper portion, the concrete slab band is the concrete slab band that pile foundation off normal cushion cap roof beam one side set up, set up in the concrete slab band and follow the atress reinforcing bar of choosing is gone out to cushion cap roof beam bottom side, the atress reinforcing bar sets up in the lower part of concrete slab band, the cushion cap roof beam with concrete slab band bottom surface elevation is the same.
As a further aspect of the utility model: the concrete slab band is a whole slab band in a bay or depth corresponding to the deviation of the pile foundation, the width of the slab band is determined according to stress balance, and the thickness of the slab band is not less than 200 mm.
As a further aspect of the utility model: the stressed steel bars arranged in the slab band are bent steel bars obtained by calculation according to the bending moment of the slab band at the edge of the bearing platform beam, and meet the requirement of minimum reinforcement ratio specified by a standard.
As a further aspect of the utility model: the pile foundation is a prestressed concrete hollow pile, a precast pile, a pipe sinking pile or a cast-in-place bored pile.
As a further aspect of the utility model: the bearing platform beam is a bearing platform beam under the bearing wall.
The utility model has the advantages that: the concrete plate strip is picked out from the side surface of the pile foundation offset bearing platform beam, and the torque of the bearing platform beam caused by the pile offset is balanced by utilizing the counterforce of the plate strip and the lower soil layer of the bearing platform beam, so that the aim of reinforcing the bearing platform beam is fulfilled without processing the reinforcement of the bearing platform beam with complex stress; the utility model discloses implement that the step is clear and definite, easy going, design simple structure has effectively utilized the counter-force of bearing platform lower soil layer to material saving.
Drawings
FIG. 1 is an overall schematic view of a residential building pile foundation offset bearing platform beam reinforcement structure;
fig. 2 is a sectional view a-a of fig. 1.
Reference numerals: 1-deviation pile, 2-normal pile, 3-concrete slab band, 4-pile foundation deviation bearing platform beam, 5-concrete cushion layer, 6-bearing wall, 7-slab band stress bar and 8-slab band distribution bar.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 and 2, a pile foundation off normal cushion cap roof beam reinforced structure, set up the concrete slab band 3 of certain width and thickness including 4 and cushion cap roof beams one side of pile foundation off normal correspondence, in this embodiment, stake 1 is the off normal stake, stake 2 is normal stake, pile foundation off normal cushion cap roof beam is the cushion cap roof beam on 1 upper portion of off normal stake, the concrete slab band is the concrete slab band that pile foundation off normal cushion cap roof beam one side set up, the atress reinforcing bar is followed the atress reinforcing bar 7 of choosing is gone out to pile foundation off normal cushion cap roof beam bottom side, atress reinforcing bar 7 sets up in the lower part of concrete slab band, the cushion cap roof beam with concrete slab band bottom surface elevation is the same, places on plain concrete bed course 5.
The concrete slab band is a whole slab band in a bay or depth corresponding to the deviation of the pile foundation, and the width of the slab band is determined according to stress balance: the counter force of the line load N of the upper bearing wall body and the soil layer at the edge of the plate strip reaches 1.2fa(faIs a bearing platform and a characteristic value of bearing capacity of a soil layer under the slab band), the width of the slab band is determined by taking the offset pile 1 as a fulcrum and considering the bending moment balance condition of the pile foundation offset bearing platform beam and the side plate, and the thickness of the slab band is not less than 200 mm.
The plate strip is internally provided with stress steel bars 7 which are bent steel bars obtained by calculation according to the bending moment of the plate strip at the edge of the bearing platform beam and meet the requirement of minimum reinforcement ratio specified by the specification, the stress steel bars are provided with distribution steel bars 8 and anchored into the bearing platform beams at two ends, and the distribution steel bars are not less than
When the pile foundation deviation bearing platform beam is processed according to the method, no additional stressed steel bar is needed to be added to the pile foundation deviation bearing platform beam, the stressed steel bar is kept unchanged according to the original design, and the structural width of the bearing platform beam is required to be met according to the specification.
Claims (5)
1. The utility model provides a pile foundation offset cushion cap roof beam reinforced structure, its characterized in that, cushion cap roof beam and cushion cap roof beam one side that corresponds including the pile foundation offset set up the concrete slab band of certain width and thickness, pile foundation offset cushion cap roof beam is the cushion cap roof beam that corresponds offset pile upper portion, the concrete slab band is the concrete slab band that pile foundation offset cushion cap roof beam one side set up, set up in the concrete slab band and follow the atress reinforcing bar of choosing is gone out to cushion cap roof beam bottom side, the atress reinforcing bar sets up in the lower part of concrete slab band, the cushion cap roof beam with concrete slab band bottom surface elevation is the same.
2. The pile foundation offset bearing platform beam reinforced structure of claim 1, characterized in that: the concrete slab band is a whole slab band in a bay or depth corresponding to the deviation of the pile foundation, the width of the slab band is determined according to stress balance, and the thickness of the slab band is not less than 200 mm.
3. The pile foundation offset bearing platform beam reinforced structure of claim 1, characterized in that: the stressed steel bars arranged in the slab band are bent steel bars obtained by calculation according to the bending moment of the slab band at the edge of the bearing platform beam, and meet the requirement of minimum reinforcement ratio specified by a standard.
4. The pile foundation offset bearing platform beam reinforced structure of claim 1, wherein the pile foundation is a prestressed concrete hollow pile, a precast pile, a sinking pipe pile, a cast-in-place pile.
5. A pile foundation offset cap beam reinforcing structure according to claim 1, wherein the cap beam is a load bearing wall lower cap beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920107315.4U CN209760323U (en) | 2019-01-22 | 2019-01-22 | Pile foundation off normal cushion cap roof beam reinforced structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920107315.4U CN209760323U (en) | 2019-01-22 | 2019-01-22 | Pile foundation off normal cushion cap roof beam reinforced structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209760323U true CN209760323U (en) | 2019-12-10 |
Family
ID=68749834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920107315.4U Expired - Fee Related CN209760323U (en) | 2019-01-22 | 2019-01-22 | Pile foundation off normal cushion cap roof beam reinforced structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209760323U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109898571A (en) * | 2019-01-22 | 2019-06-18 | 南京林业大学 | A kind of pile foundation deviation apron piece reinforcement means |
-
2019
- 2019-01-22 CN CN201920107315.4U patent/CN209760323U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109898571A (en) * | 2019-01-22 | 2019-06-18 | 南京林业大学 | A kind of pile foundation deviation apron piece reinforcement means |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191210 Termination date: 20210122 |