CN216380688U - Corner post for reinforcing masonry structure by adopting externally-added ring beam structure post and mud jacking anchor rod - Google Patents
Corner post for reinforcing masonry structure by adopting externally-added ring beam structure post and mud jacking anchor rod Download PDFInfo
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- CN216380688U CN216380688U CN202122145185.3U CN202122145185U CN216380688U CN 216380688 U CN216380688 U CN 216380688U CN 202122145185 U CN202122145185 U CN 202122145185U CN 216380688 U CN216380688 U CN 216380688U
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Abstract
The utility model relates to a corner post for reinforcing a masonry structure by adopting an external ring beam constructional column and a grouting anchor rod, which is mainly used for enhancing the connection strength of the corner part of the masonry structure reinforced by an external wall additionally provided with the constructional column and the ring beam. The concrete pile comprises an external ring beam, an external constructional column, a mud jacking anchor rod, anchor bars and stirrups, wherein the external constructional column is arranged at the four corners of a house, a staircase and the corresponding corners of an irregular plane; the external constructional column is connected with an external ring beam or a steel pull rod to form a closed system; the external constructional column is communicated along the full height of the house and cannot be dislocated; the end of the grouting anchor rod is screwed by double nuts, and an end gasket is arranged in the middle of the double nuts; the anchor slurry of the grouting anchor rod in the anchor hole of the wall body is grouted by adopting cement-based antirust mortar; the setting height of the external ring beam is equal to that of the floor system, the external constructional column and the ring beam are integrally cast, a closed whole is formed around the floor, common stress is guaranteed, and rigidity mutation of each layer is prevented.
Description
Technical Field
The utility model relates to an angle column for reinforcing a masonry structure by adopting an external ring beam constructional column and a grouting anchor rod, belonging to the technical field of comprehensive reconstruction of the existing building.
Background
The existing masonry structure house is reinforced in an earthquake-proof manner, and a reinforcing method that reinforced concrete constructional columns, ring beams and inner transverse walls are additionally arranged on outer walls and steel pull rods are commonly adopted, and the method is commonly called a binding type earthquake-proof reinforcing method. After multiple earthquake verification, the method is safe and reliable, the ductility of the structure is obviously improved, and the collapse resistance of the structure is enhanced. Earthquake-proof reinforcement is generally carried out in primary and secondary schools in China after Wenchuan earthquake, and earthquake-proof reinforcement implementation planning is also listed in old residences. More than 80% of the buildings adopt a binding type reinforcing scheme for brick-concrete structures, and are also very suitable. The utility model mainly aims at a grouting anchor rod and a construction method thereof for additionally arranging a constructional column and a ring beam on an outer wall to reinforce a corner part of a masonry structure.
SUMMERY OF THE UTILITY MODEL
The utility model provides an angle column for reinforcing a masonry structure by adopting an external ring beam constructional column and a grouting anchor rod, and mainly aims to enhance the connection strength of the outer wall additionally provided with the constructional column and the ring beam reinforced masonry structure corner part.
The technical scheme of the utility model is as follows:
the utility model provides an adopt outer ring roof beam constructional column, mud jacking stock to consolidate masonry structure corner post, includes outer ring roof beam, outer constructional column, mud jacking stock, anchor bar, stirrup, its characterized in that: the additional constructional columns are arranged at four corners of a house, a staircase and corresponding corners of the irregular plane; the external constructional column is connected with an external ring beam or a steel pull rod to form a closed system; the external constructional column is communicated along the full height of the house and cannot be dislocated; the concrete strength grade of the additional constructional column is not lower than C30;
the mud jacking anchor rod is a steel bar with the diameter of phi 14; the end of the grouting anchor rod is screwed by double nuts, and an end gasket is arranged in the middle of the double nuts; the anchor slurry of the grouting anchor rod in the anchor hole of the wall body is grouted by adopting cement-based antirust mortar; the stirrups are encrypted within the length range of 500mm above and below the floor (house) plate, and the distance between the stirrups is not more than 100 mm; the setting height of the external ring beam is equal to the floor (house) cover, the external constructional column and the ring beam are integrally cast, and a closed whole is formed along the periphery of the floor; the anchor bars are phi 12 steel bars, and the actual strength grade of the masonry mortar is not lower than M2.5.
Furthermore, the externally-added constructional column does not independently arrange a foundation, and extends 500mm below the outdoor ground or is connected with a foundation ring beam with the buried depth of less than 500 mm.
Furthermore, the external constructional column adopts a section of 240mm multiplied by 180mm or 300mm multiplied by 150mm, an L-shaped equilateral corner column with the side length of 600mm is adopted at the corner of the external wall, and the thickness is not less than 120 mm.
Furthermore, the longitudinal steel bars of the externally-added constructional column are not less than 4 phi 12, the longitudinal steel bars at the corners are 12 phi 12, and double-row arrangement is adopted.
Furthermore, when the cement-based antirust mortar is a cement-based super-toughness composite material prepared from polyvinyl alcohol fibers, the material properties are shown in the following table.
Performance chart of polyvinyl alcohol fiber material
Furthermore, the cement base material antirust mortar for crack pouring is added with a water reducing agent to prepare compact mortar, the mixing volume ratio of polyvinyl alcohol fibers is not more than 2%, and the adding amount of the polyvinyl alcohol fibers in each cubic meter of the cement base material antirust mortar is 0.6-1.9 kg;
further, the configuration strength of the cement-based antirust mortar is not less than M10.
Furthermore, the concrete strength grade of the external ring beam is not lower than C30, the steel bars are hot rolled steel bars of HPB300 or HRB335 grade, when the fortification intensity of the A-type house is 7 degrees and is not more than three layers, the top layer adopts the steel ring beam, if the channel steel is not less than [8 ], and if the angle steel is not less than L75 multiplied by 6.
Furthermore, the height of the section of the external ring beam is not less than 180mm, and the width of the external ring beam is not less than 120 mm.
Furthermore, for the A-class masonry dwelling house, when the fortification intensity is 7 degrees or 8 degrees, the external ring beam steel bars are respectively selected from longitudinal steel bars with the diameter of 4 phi 8 or 4 phi 10;
furthermore, the anchoring length of the grouting anchor rod in the externally-added constructional column and the transverse wall is not less than 35 times of the diameter of the anchor rod;
furthermore, the end gasket is a cold-rolled steel plate with the thickness of 8mm and the thickness of 50mm multiplied by 50 mm;
furthermore, the diameter of an anchor hole of the anchor bar is 18 mm-25 mm, and the anchoring depth is 150 mm-200 mm.
Furthermore, the stirrup is phi 6, and the distance is 150-200 mm.
The method for reinforcing the angle column of the masonry structure by adopting the externally added ring beam structure column and the mud jacking anchor rod and the construction method thereof adopt the following steps:
the method comprises the following steps: and (5) blanking according to a design drawing.
Step two: and (3) removing the shortenings, oil stains or the veneer layer of the wall surface before the construction of the external constructional column and the external ring beam, and plastering and reinforcing the wall surface to be constructed.
Step three: and (3) before the external constructional column and the external ring beam are poured, after the steel bar arrangement, the mud jacking anchor rod arrangement, the anchor bar arrangement, the anchoring drawknot, the template support and the like are checked to be qualified, and then concrete pouring construction is carried out.
Step four: the grouting anchor rod is firstly fixed on the wall surface, then additional constructional column concrete is poured, the hole of the wall body anchor hole is washed clean before grouting, and the anchor slurry is grouted by cement base material antirust mortar.
Step five: the external constructional column and the external ring beam are continuously poured, and construction joints are strictly forbidden at the transverse wall within 1000mm from the steel pull rod.
Step six: and the top of the external ring beam is well flooded outwards, and the bottom surface of the external ring beam is provided with a water dripping groove.
Step seven: the steel pull rod is tensioned and anchored in an externally-added constructional column or a ring beam, and exposed iron pieces are subjected to rust prevention treatment.
Has the advantages that:
the most remarkable advantage of the utility model is that the external ring beam constructional column reinforced masonry structure corner column is continuously arranged by adopting the grouting anchor rods, is vertically centered, is pulled through new and old structures on the plane, is reliably pulled and connected with each other, ensures common stress and prevents rigidity mutation of each layer. The method is suitable for non-ultrahigh and non-ultralimit masonry structures, the ratio of the shear effect of earthquake on each wall after reinforcement is less than 1, and for wall sections which do not meet the earthquake-resistant requirement, other reinforcement methods are selected to enable the wall sections to meet the earthquake-resistant requirement, or multiple methods are combined for use, so that the reinforcement scheme is more reasonable.
Drawings
FIG. 1 is a schematic view of an external ring beam structure column and a corner column structure of a grouting anchor rod reinforced masonry structure;
FIG. 2 is an enlarged view of FIG. 1 at A;
fig. 3 is an enlarged view of fig. 2 at B.
In the figure, 1: externally adding a constructional column; 2: an external ring beam; 3: anchoring ribs; 4: hooping; 5: longitudinal reinforcing steel bars; 6: longitudinal steel bars at corners; 7: grouting anchor rods; 8: a nut; 9: and an end pad.
Detailed Description
The utility model provides an adopt plus circle roof beam structure post, mud jacking stock to consolidate masonry structure corner post, refer to fig. 1 to 3 and show, include plus circle roof beam 2, plus structure post 1, mud jacking stock 7, anchor bar 3, stirrup 4, its characterized in that: the externally-added constructional columns 1 are arranged at four corners of a house, a staircase and corresponding corners of an irregular plane; the externally-added constructional column 1 is connected with an externally-added ring beam 2 or a steel pull rod to form a closed system; the externally-added constructional column 1 is communicated along the full height of the house and cannot be dislocated; the concrete strength grade of the additional constructional column 1 is not lower than C30; the grouting anchor rod 7 is a steel bar with the diameter of 14 mm; the end of the grouting anchor rod 7 is screwed by a double nut 8, and an end gasket 9 is arranged in the middle of the double nut 8; the anchor slurry of the grouting anchor rod 7 in the wall anchor hole is grouted by cement-based antirust mortar; the stirrups 4 are encrypted within the length range of 500mm above and below the floor (house) plate, and the distance between the stirrups is not more than 100 mm; the height of the external ring beam 2 is equal to the height of a building (house) cover, and the external constructional column 1 and the external ring beam 2 are integrally cast to form a closed whole along the periphery of the building; the anchor bars 3 adopt phi 12 steel bars, and the actual strength grade of the masonry mortar is not lower than M2.5.
Furthermore, the externally added constructional column 1 is not provided with a foundation independently, and extends 500mm below the outdoor ground or is connected with a foundation ring beam with the buried depth of less than 500 mm.
Furthermore, the external constructional column 1 adopts a section of 240mm multiplied by 180mm or 300mm multiplied by 150mm, an L-shaped equilateral corner column with the side length of 600mm is adopted at the corner of the external wall, and the thickness is not less than 120 mm.
Furthermore, the longitudinal steel bars 5 of the external constructional column 1 are not less than 4 phi 12, the longitudinal steel bars 6 at the corners adopt 12 phi 12, and double-row arrangement is adopted.
Furthermore, when the cement-based antirust mortar is a cement-based super-toughness composite material prepared from polyvinyl alcohol fibers, the material properties are shown in the following table.
Performance chart of polyvinyl alcohol fiber material
Furthermore, the cement base material antirust mortar for crack pouring is added with a water reducing agent to prepare compact mortar, the mixing volume ratio of polyvinyl alcohol fibers is not more than 2%, and the adding amount of the polyvinyl alcohol fibers in each cubic meter of the cement base material antirust mortar is 0.6-1.9 kg;
further, the configuration strength of the cement-based antirust mortar is not less than M10.
Furthermore, the concrete strength grade of the external ring beam 2 is not lower than C30, the steel bars are hot rolled steel bars of HPB300 or HRB335 grade, when the fortification intensity of the A-type house is 7 degrees and is not more than three layers, the top layer adopts the steel ring beam, if the channel steel is not less than [8 ], and if the angle steel is not less than L75 multiplied by 6.
Further, the height of the section of the external ring beam 2 is not less than 180mm, and the width of the section of the external ring beam is not less than 120 mm.
Furthermore, for the A-class masonry dwelling house, when the fortification intensity is 7 degrees or 8 degrees, the steel bars of the external ring beam 2 are respectively selected to be longitudinal steel bars 5 with the diameter of 4 phi 8 or 4 phi 10;
further, the anchoring length of the grouting anchor rod 7 in the externally-added constructional column 1 and the transverse wall is not less than 35 times of the diameter of the anchor rod;
furthermore, the end gasket 9 is a cold-rolled steel plate with the thickness of 8mm and the thickness of 50mm multiplied by 50 mm;
furthermore, the diameter of the anchor hole of the anchor bar 3 is 18 mm-25 mm, and the anchoring depth is 150 mm-200 mm.
Furthermore, the stirrup 4 is phi 6, and the distance is 150-200 mm.
The method for reinforcing the angle column of the masonry structure by adopting the externally added ring beam structure column and the mud jacking anchor rod and the construction method thereof adopt the following steps:
the method comprises the following steps: and (5) blanking according to a design drawing.
Step two: before the construction of the external constructional column 1 and the external ring beam 2, the shortness and alkali, oil stains or the veneer layer of the wall surface is removed, and the wall surface to be constructed is plastered and reinforced.
Step three: and (3) before the external constructional column 1 and the external ring beam 2 are poured, after the steel bar arrangement, the mud jacking anchor rod 7 arrangement, the anchor bar 3 arrangement, the anchoring tie and the template support are checked to be qualified, the concrete pouring construction is carried out.
Step four: the grouting anchor rod 7 is firstly fixed on the wall surface, then the concrete of the additional constructional column 1 is poured, the hole of the wall anchor hole is washed clean before grouting, and the anchor slurry is grouted by cement-based antirust mortar.
Step five: the external constructional column 1 and the external ring beam 2 are continuously poured, and construction joints are strictly forbidden at transverse walls within 1000mm from the steel pull rod.
Step six: the top of the external ring beam 2 is well flooded outwards, and the bottom surface is provided with a drip groove.
Step seven: the steel pull rod is tensioned and anchored in the externally-added constructional column 1 or the externally-added ring beam 2, and exposed iron pieces are subjected to rust prevention treatment.
The above is a typical embodiment of the present invention, and the specific implementation of the present invention is not limited thereto, and meanwhile, a utility model patent of "reinforcing the angle column of the masonry structure by the external ring beam constructional column by using the anchor bar" is also applied.
Claims (8)
1. The utility model provides an adopt plus ring roof beam structure post, mud jacking stock to consolidate masonry structure corner post, its characterized in that: comprises an external ring beam (2), an external constructional column (1), a mud jacking anchor rod (7), an anchor bar (3) and a stirrup (4); the additional constructional columns (1) are arranged at four corners of a house, a staircase and corresponding corners of an irregular plane; the external constructional column (1) is connected with an external ring beam (2) or a steel pull rod to form a closed system; the externally-added constructional column (1) is communicated along the full height of the house and cannot be dislocated; the concrete strength grade of the additional constructional column (1) is not lower than C30; the grouting anchor rod (7) is a steel bar with the diameter of 14 mm; the end of the grouting anchor rod (7) is screwed by double nuts (8), and an end gasket (9) is arranged in the middle of the double nuts (8); the anchor slurry of the grouting anchor rod (7) in the wall anchor hole is grouted by cement-based antirust mortar; the stirrups (4) are arranged in a 500mm length range on the floor slab and at intervals not more than 100 mm; the height of the external ring beam (2) is equal to the floor, the external constructional column (1) and the external ring beam (2) are integrally cast, and a closed whole is formed along the periphery of the floor; the anchor bars (3) adopt phi 12 steel bars, and the actual strength grade of the masonry mortar is not lower than M2.5.
2. The method of claim 1, wherein the angle column is formed by constructing a column with an external ring beam and reinforcing the masonry structure with a grouting anchor rod, and is characterized in that: the additional constructional column (1) adopts a section of 240mm multiplied by 180mm or 300mm multiplied by 150mm, an L-shaped equilateral corner column with the side length of 600mm is adopted at the corner of the outer wall, and the thickness is not less than 120 mm.
3. The method of claim 1, wherein the angle column is formed by constructing a column with an external ring beam and reinforcing the masonry structure with a grouting anchor rod, and is characterized in that: the longitudinal steel bars (5) of the additional constructional column (1) are not less than 4 phi 12, and the longitudinal steel bars (6) at the corners are 12 phi 12 and arranged in double rows.
4. The method of claim 1, wherein the angle column is formed by constructing a column with an external ring beam and reinforcing the masonry structure with a grouting anchor rod, and is characterized in that: when the cement-based antirust mortar is a composite material prepared from polyvinyl alcohol fibers, the amount of the polyvinyl alcohol fibers added into the cement-based antirust mortar per cubic meter is 0.6-1.9 kg, and the preparation strength of the cement-based antirust mortar is not less than M10.
5. The method of claim 1, wherein the angle column is formed by constructing a column with an external ring beam and reinforcing the masonry structure with a grouting anchor rod, and is characterized in that: the concrete strength grade of the external ring beam (2) is not lower than C30, the steel bars are hot rolled steel bars of HPB300 or HRB335 grade, the height of the section of the external ring beam (2) is not less than 180mm, and the width of the external ring beam is not less than 120 mm.
6. The method of claim 1, wherein the angle column is formed by constructing a column with an external ring beam and reinforcing the masonry structure with a grouting anchor rod, and is characterized in that: the anchoring length of the grouting anchor rod (7) in the external constructional column (1) and the transverse wall is not less than 35 times of the diameter of the anchor rod.
7. The method of claim 1, wherein the angle column is formed by constructing a column with an external ring beam and reinforcing the masonry structure with a grouting anchor rod, and is characterized in that: the end gasket (9) is a cold-rolled steel plate with the thickness of 8mm and the thickness of 50mm multiplied by 50 mm.
8. The method of claim 1, wherein the angle column is formed by constructing a column with an external ring beam and reinforcing the masonry structure with a grouting anchor rod, and is characterized in that: the diameter of the anchor hole of the anchor bar (3) is 18 mm-25 mm, and the anchoring depth is 150 mm-200 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122145185.3U CN216380688U (en) | 2021-09-03 | 2021-09-03 | Corner post for reinforcing masonry structure by adopting externally-added ring beam structure post and mud jacking anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122145185.3U CN216380688U (en) | 2021-09-03 | 2021-09-03 | Corner post for reinforcing masonry structure by adopting externally-added ring beam structure post and mud jacking anchor rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216380688U true CN216380688U (en) | 2022-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122145185.3U Active CN216380688U (en) | 2021-09-03 | 2021-09-03 | Corner post for reinforcing masonry structure by adopting externally-added ring beam structure post and mud jacking anchor rod |
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| CN (1) | CN216380688U (en) |
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2021
- 2021-09-03 CN CN202122145185.3U patent/CN216380688U/en active Active
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