CN114991556A - Newly-added rib beam type equal-thickness wing plate reinforced independent foundation and construction method thereof - Google Patents
Newly-added rib beam type equal-thickness wing plate reinforced independent foundation and construction method thereof Download PDFInfo
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- CN114991556A CN114991556A CN202210747338.8A CN202210747338A CN114991556A CN 114991556 A CN114991556 A CN 114991556A CN 202210747338 A CN202210747338 A CN 202210747338A CN 114991556 A CN114991556 A CN 114991556A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/027—Preventive constructional measures against earthquake damage in existing buildings
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/48—Foundations inserted underneath existing buildings or constructions
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
- E04G23/0229—Increasing or restoring the load-bearing capacity of building construction elements of foundations or foundation walls
Abstract
The invention relates to a newly-added rib beam type equal-thickness wing plate reinforced independent foundation and a construction method thereof, wherein the newly-added rib beam type equal-thickness wing plate reinforced independent foundation comprises a newly-added rib beam, a newly-added equal-thickness wing plate and a concrete cushion layer, and is characterized in that: the newly added rib beam and the newly added equal-thickness wing plate are used for connecting the original independent foundations, and the original independent foundations are changed into strip foundations after being connected; the newly added rib beam and the newly added wing plate with the same thickness comprise a rib beam stress main rib, a waist rib, a wing plate longitudinal rib, a wing plate transverse rib and a stirrup; the stressed main rib and the waist rib of the rib beam are arranged along the horizontal direction of the newly added rib beam, and the two ends of the stressed main rib and the waist rib of the rib beam are respectively implanted into the original independent foundation; the wing plate longitudinal ribs are arranged along the horizontal direction of the newly added wing plate with the same thickness; the transverse ribs of the wing plates are arranged in a crossed manner and are perpendicular to the longitudinal ribs of the wing plates; the stirrup and the stressed main rib, the waist rib, the wing plate longitudinal rib and the like of the rib beam are bound together, the formwork support is carried out, and then the concrete pouring is carried out.
Description
Technical Field
The invention relates to a newly-added rib beam type equal-thickness wing plate reinforced independent foundation and a construction method thereof, and belongs to the technical field of seismic reinforcement of existing buildings.
Background
At present, a large number of existing buildings cannot meet the requirement of earthquake resistance, earthquake resistance reinforcement and transformation need to be carried out on the buildings, and particularly, the foundation part is relatively weak. The existing building earthquake-resistant reinforcement transformation aims to solve the problem of reinforcement of foundation foundations firstly, and the load of the whole building is transmitted to the foundation through the foundation, so that the earthquake-resistant reinforcement of the foundation foundations plays a significant role in the earthquake-resistant reinforcement of the existing buildings. Only if the foundation has enough strength, rigidity and durability, the safety and normal use of the whole building can be ensured. The invention mainly aims at the existing independent building foundation which does not meet the bearing capacity requirement, and the independent foundation is changed into a strip foundation by adding the rib beam type equal-thickness wing plate for seismic reinforcement.
Disclosure of Invention
The invention provides a newly-added rib beam type equal-thickness wing plate reinforced independent foundation and a construction method thereof.
The technical scheme of the invention is as follows:
a newly-added rib beam type equal-thickness wing plate reinforced independent foundation and a construction method thereof comprise a newly-added rib beam, a newly-added equal-thickness wing plate and a concrete cushion layer, and are characterized in that: the newly added rib beam and the newly added equal-thickness wing plate are used for connecting the original independent foundations, and the original independent foundations are changed into strip foundations after being connected; the newly added rib beam and the newly added wing plate with the same thickness comprise a rib beam stressed main rib, a waist rib, a wing plate longitudinal rib, a wing plate transverse rib and a stirrup; the rib beam stress main rib is arranged along the horizontal direction of the newly added rib beam, and two ends of the rib beam stress main rib are respectively implanted into the original independent foundation; the waist bar is arranged along the horizontal direction of the newly-added rib beam, and two ends of the waist bar are respectively implanted into the original independent foundation; the wing plate longitudinal ribs are arranged along the horizontal direction of the newly added wing plate with the same thickness; the transverse ribs of the wing plates are perpendicular to the longitudinal ribs of the wing plates and are arranged in a crossed manner; the hooping is bound with the rib beam stressed main rib, the waist rib, the wing plate longitudinal rib and the like; and after the steel bars in the newly-added rib beam and the newly-added equal-thickness wing plate are arranged, carrying out template supporting and then pouring concrete.
Furthermore, the strength grade of the cast concrete of the newly added rib beam and the newly added equal-thickness wing plate is not lower than C30.
Further, the thickness of the newly added equal-thickness wing plate is not less than 250 mm.
Further, the width of the newly added rib beam is not less than 400 mm.
Furthermore, the stressed main rib of the rib beam is a 4 phi 12 steel bar, and the depth of the end part of the stressed main rib of the rib beam implanted into the original independent foundation is not less than 200 mm.
Furthermore, the lumbar muscle is arranged at phi 12@ 150-200, and the end part of the lumbar muscle is implanted into the original independent foundation with the depth not less than 200 mm.
Furthermore, the wing plate longitudinal ribs are arranged in a phi 10-12 @200 mode.
Furthermore, 4 phi 10-12 steel bars are arranged on each side of the wing plate transverse rib.
Furthermore, the stirrups are arranged in a phi 8-10 @ 150-250 mode.
Further, the concrete strength grade of the concrete cushion is not lower than C10.
The newly-added rib beam type equal-thickness wing plate reinforced independent foundation and the construction method thereof adopt the following steps:
the method comprises the following steps: firstly, drilling holes on the original independent basis according to the requirements of design drawings for implanting stressed main ribs and waist ribs of a rib beam;
step two: and (4) roughening and cleaning the original independent foundation.
Step three: before binding reinforcing steel bars and pouring concrete in the newly-added rib beam and the newly-added equal-thickness wing plate, a layer of high-strength-grade cement paste is paved or a concrete interface agent is coated to increase the bonding force of a concrete foundation between a new structure and an old structure.
Step four: and embedding a rib beam stressed main rib and a waist rib on the original independent basis, and arranging, binding and fixing wing plate longitudinal ribs, wing plate transverse ribs and hoop ribs.
Step five: and (3) before the newly-added rib beam and the newly-added equal-thickness wing plate are poured, carrying out concrete pouring construction after the stress main ribs, the waist ribs, the wing plate longitudinal ribs, the wing plate transverse ribs and the stirrup are arranged and the template support is checked to be qualified.
Has the beneficial effects that:
the most obvious advantage of the invention is that the original independent foundation is changed into the strip foundation by adding the rib beam type equal-thickness wing plate, so that the strength, the rigidity and the durability of the foundation are improved, the construction period is short, the method is safe and reliable, and if the technology is popularized and applied in the seismic reinforcement of the old building, the economic benefit and the social benefit are obvious.
Drawings
FIG. 1 is a schematic plane view of an independent foundation reinforced by a newly added rib beam type equal-thickness wing plate;
FIG. 2 is a schematic view of a vertical surface of a newly added rib beam type equal-thickness wing plate reinforced independent foundation;
FIG. 3 is a cross-sectional view taken along line 1-1 of FIG. 1;
fig. 4 is an enlarged sectional view of fig. 2 at a.
In the figure, 1: the rib beam stress main rib; 2: waist tendon; 3: wing plate longitudinal ribs; 4: a wing plate transverse rib; 5: hooping; 6: original independent foundation; 7: an original concrete column; 8: newly adding a rib beam; 9: newly adding an equal-thickness wing plate; 10: a concrete pad.
Detailed Description
A newly-added rib beam type equal-thickness wing plate reinforced independent foundation and a construction method thereof are disclosed, and the construction method is shown in the figures 1-4, and comprises a newly-added rib beam 8, a newly-added equal-thickness wing plate 9 and a concrete cushion layer 10, and is characterized in that: the newly added rib beam 8 and the newly added equal-thickness wing plate 9 are used for connecting the original independent foundations 6, and the original independent foundations 6 are changed into strip foundations after being connected; the newly added rib beam 8 and the newly added equal-thickness wing plate 9 comprise a rib beam stress main rib 1, a waist rib 2, a wing plate longitudinal rib 3, a wing plate transverse rib 4 and a stirrup 5; the rib beam stress main rib 1 is arranged along the horizontal direction of the newly added rib beam 8, and two ends of the rib beam stress main rib 1 are respectively implanted into the original independent foundation 6; the waist bar 2 is arranged along the horizontal direction of the newly added rib beam 8, and two ends of the waist bar 2 are respectively implanted into the original independent foundation 6; the wing plate longitudinal ribs 3 are arranged along the horizontal direction of the newly added equal-thickness wing plate 9; the wing plate transverse ribs 4 are arranged in a crossed manner perpendicular to the wing plate longitudinal ribs 3; the stirrups 5 are bound together with the rib beam stressed main reinforcement 1, the waist reinforcement 2, the wing plate longitudinal reinforcements 3 and the like; and after the steel bars in the newly-added rib beam 8 and the newly-added equal-thickness wing plate 9 are arranged, carrying out template supporting and then pouring concrete.
Furthermore, the strength grade of the cast concrete of the newly added rib beam 8 and the newly added equal-thickness wing plate 9 is not lower than C30.
Further, the thickness of the newly added equal-thickness wing plate 9 is not less than 250 mm.
Further, the width of the newly added rib beam 8 is not less than 400 mm.
Furthermore, the rib beam stress main rib 1 is a 4 phi 12 steel bar, and the depth of the end part of the rib beam stress main rib 1 implanted into the original independent foundation 6 is not less than 200 mm.
Furthermore, the lumbar muscle 2 is arranged at phi 12@ 150-200, and the depth of the end part of the lumbar muscle implanted into the original independent foundation 6 is not less than 200 mm.
Furthermore, the wing plate longitudinal ribs 3 are arranged in a phi 10-12 @200 mode.
Furthermore, 4 phi 10-12 steel bars are arranged on each side of the wing plate transverse rib 4.
Furthermore, the stirrups 5 are arranged in a phi 8-10 @ 150-250 mode.
Further, the concrete strength grade of the concrete cushion layer 10 is not lower than C10.
The newly-added rib beam type equal-thickness wing plate reinforced independent foundation and the construction method thereof adopt the following steps:
the method comprises the following steps: firstly, drilling holes on an original independent foundation 6 according to the requirements of a design drawing for implanting a rib beam stressed main rib 1 and a waist rib 2;
step two: and (4) chiseling and cleaning the original independent foundation 6.
Step three: before binding reinforcing steel bars and pouring concrete in the newly-added rib beam 8 and the newly-added equal-thickness wing plate 9, a layer of high-strength-grade cement paste is paved or a concrete interface agent is coated to increase the bonding force of the concrete foundation between the new structure and the old structure.
Step four: the rib beam stressed main rib 1 and the waist rib 2 are implanted on the original independent foundation 6, and the wing plate longitudinal rib 3, the wing plate transverse rib 4 and the stirrup 5 are arranged, bound and fixed.
Step five: and (3) before the newly-added rib beam 8 and the newly-added equal-thickness wing plate 9 are poured, the arrangement of the stressed main rib 1, the stressed waist rib 2, the wing plate longitudinal rib 3, the wing plate transverse rib 4 and the stirrup 5 of the rib beam, the template support and the like are checked to be qualified, and then concrete pouring construction is carried out.
The above is a typical embodiment of the present invention, and the specific implementation of the present invention is not limited thereto.
Claims (9)
1. A newly-added rib beam type equal-thickness wing plate reinforced independent foundation and a construction method thereof are characterized in that: including newly-increased rib roof beam (8), newly-increased uniform thickness pterygoid lamina (9), concrete cushion (10), its characterized in that: the newly-added rib beam (8) and the newly-added equal-thickness wing plate (9) are used for connecting the original independent foundations (6), and the original independent foundations (6) are changed into strip foundations after being connected; the newly added rib beam (8) and the newly added equal-thickness wing plate (9) comprise rib beam stress main ribs (1), waist ribs (2), wing plate longitudinal ribs (3), wing plate transverse ribs (4) and stirrups (5); the rib beam stress main rib (1) is arranged along the horizontal direction of the newly added rib beam (8), and two ends of the rib beam stress main rib (1) are respectively implanted into the original independent foundation (6); the waist bar (2) is arranged along the horizontal direction of the newly added rib beam (8), and two ends of the waist bar (2) are respectively implanted into the original independent foundation (6); the wing plate longitudinal ribs (3) are arranged along the horizontal direction of the newly added wing plate (9) with the same thickness; the wing plate transverse ribs (4) are arranged in a crossed manner and are vertical to the wing plate longitudinal ribs (3); the stirrups (5) are bound with the rib beam stress main rib (1), the waist rib (2), the wing plate longitudinal rib (3) and the like; the thickness of the newly added equal-thickness wing plate (9) is not less than 250 mm; the width of the newly added rib beam (8) is not less than 400 mm.
2. The newly added rib beam type equal-thickness wing plate reinforced independent foundation and the construction method thereof according to claim 1, wherein: and the strength grade of the cast concrete of the newly added rib beam (8) and the newly added equal-thickness wing plate (9) is not lower than C30.
3. The newly added rib beam type equal-thickness wing plate reinforced independent foundation and the construction method thereof according to claim 1, wherein: the rib beam stress main rib (1) is a 4 phi 12 steel bar, and the depth of the rib beam stress main rib (1) end part implanted into the original independent foundation is not less than 200 mm.
4. The newly added rib beam type equal-thickness wing plate reinforced independent foundation and the construction method thereof according to claim 1 are characterized in that: the waist rib (2) is arranged at phi 12@ 150-200, and the depth of the end part of the waist rib implanted into the original independent foundation (6) is not less than 200 mm.
5. The newly added rib beam type equal-thickness wing plate reinforced independent foundation and the construction method thereof according to claim 1, wherein: the wing plate longitudinal ribs (3) are arranged in a phi 10-12 @200 mode.
6. The newly added rib beam type equal-thickness wing plate reinforced independent foundation and the construction method thereof according to claim 1, wherein: and 4 phi 10-12 steel bars are arranged on each side of the wing plate transverse rib (4).
7. The newly added rib beam type equal-thickness wing plate reinforced independent foundation and the construction method thereof according to claim 1, wherein: the hooping (5) is arranged in a phi 8-10 @ 150-250 mode.
8. The newly added rib beam type equal-thickness wing plate reinforced independent foundation and the construction method thereof according to claim 1, wherein: the concrete strength grade of the concrete cushion (10) is not lower than C10.
9. The newly added rib beam type equal-thickness wing plate reinforced independent foundation and the construction method thereof according to any one of claims 1 to 8, wherein the rib beam type equal-thickness wing plate reinforced independent foundation is characterized in that: the method comprises the following steps:
the method comprises the following steps: firstly, drilling holes on an original independent foundation (6) according to the requirements of a design drawing for implanting a rib beam stress main rib (1) and a waist rib (2);
step two: the original independent foundation (6) is chiseled and brushed cleanly.
Step three: before steel bars are bound and concrete is poured into the newly added rib beam (8) and the newly added equal-thickness wing plate (9), a layer of high-strength-grade cement paste is paved or a concrete interface agent is coated to increase the bonding force of the concrete foundation between the new structure and the old structure.
Step four: the rib beam stressed main rib (1) and the waist rib (2) are implanted on the original independent foundation (6), and the wing plate longitudinal rib (3), the wing plate transverse rib (4) and the hoop rib (5) are arranged and bound and fixed.
Step five: and (3) before the newly added rib beam (8) and the newly added equal-thickness wing plate (9) are poured, the arrangement of the rib beam stressed main rib (1), the waist rib (2), the wing plate longitudinal rib (3), the wing plate transverse rib (4) and the hoop rib (5) and the template support and the like are checked to be qualified, and then concrete pouring construction is carried out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210747338.8A CN114991556A (en) | 2022-06-28 | 2022-06-28 | Newly-added rib beam type equal-thickness wing plate reinforced independent foundation and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210747338.8A CN114991556A (en) | 2022-06-28 | 2022-06-28 | Newly-added rib beam type equal-thickness wing plate reinforced independent foundation and construction method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN114991556A true CN114991556A (en) | 2022-09-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210747338.8A Pending CN114991556A (en) | 2022-06-28 | 2022-06-28 | Newly-added rib beam type equal-thickness wing plate reinforced independent foundation and construction method thereof |
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| Country | Link |
|---|---|
| CN (1) | CN114991556A (en) |
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2022
- 2022-06-28 CN CN202210747338.8A patent/CN114991556A/en active Pending
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