CN113431372A - End part of flat steel pull rod reinforced masonry structure is connected by angle steel base plate and ring beam structural column and construction method thereof - Google Patents

End part of flat steel pull rod reinforced masonry structure is connected by angle steel base plate and ring beam structural column and construction method thereof Download PDF

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Publication number
CN113431372A
CN113431372A CN202110764532.2A CN202110764532A CN113431372A CN 113431372 A CN113431372 A CN 113431372A CN 202110764532 A CN202110764532 A CN 202110764532A CN 113431372 A CN113431372 A CN 113431372A
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China
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pull rod
flat steel
drawknot
angle steel
ring beam
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CN202110764532.2A
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Chinese (zh)
Inventor
董有
任洹
杜鑫
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Zhufu Beijing Urban Renewal And Construction Group Co ltd
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Zhufu Beijing Urban Renewal And Construction Group Co ltd
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Priority to CN202110764532.2A priority Critical patent/CN113431372A/en
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00Working measures on existing buildings
    • E04G23/02Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0218Increasing or restoring the load-bearing capacity of building construction elements
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00Working measures on existing buildings
    • E04G23/02Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0218Increasing or restoring the load-bearing capacity of building construction elements
    • E04G23/0222Replacing or adding wall ties
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H9/00Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
    • E04H9/02Buildings, 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
    • E04H9/027Preventive constructional measures against earthquake damage in existing buildings

Abstract

The invention relates to a flat steel pull rod reinforced masonry structure end part adopting an angle steel base plate and a ring beam constructional column connection and a construction method thereof, comprising a flat steel pull rod, an angle steel base plate, a tie bolt, a groove, a ring beam and a constructional column; the flat steel pull rod is arranged in a wall surface ash groove at the lower side of the floor slab or the roof slab and clings to the horizontal position of the wall surface; the flat steel pull rod is made of Q235B flat steel with the width of 100mm and the thickness of 6 mm; the tie base is formed by welding a tie plate, a stiffening rib and a flat steel pull rod; the dust removing groove with the groove size of 180mm multiplied by 25mm is an operation space for facilitating connection and tensioning between the flat steel pull rod and the drawknot base; the flat steel pull rod is connected with the original structure outer wall by adopting an angle steel base plate and is poured together with the ring beam and the constructional column; the angle steel backing plate is provided with two oval mounting holes, and the angle steel backing plate is fixedly connected with a tie base on the inner side of the outer wall of the original structure through tie bolts.

Description

End part of flat steel pull rod reinforced masonry structure is connected by angle steel base plate and ring beam structural column and construction method thereof
Technical Field
The invention relates to a connection of an end part of a flat steel pull rod reinforced masonry structure by adopting an angle steel base plate and a ring beam structural column and a construction method thereof, belonging to the field of seismic reinforcement comprehensive transformation.
Background
In the process of seismic reinforcement of an existing masonry structure, the traditional reinforcement method mostly adopts cast-in-place concrete wet operation, a formwork needs to be supported and dismantled, the construction period is long, the thickness of a wall needs to be increased sometimes, the using area of a building is reduced, the wall needs to be dismantled before construction, and the wall needs to be repaired after construction, so that the engineering quantity and the construction cost are increased. Meanwhile, the influence of the environment and the field is large, so that the selective use of the traditional reinforcing method is limited, and therefore, a novel reasonable reinforcing method is researched, namely the end part of the masonry structure is reinforced by a flat steel pull rod and connected by an angle steel base plate and a ring beam structural column.
Disclosure of Invention
The invention provides a method for connecting the end part of a masonry structure reinforced by a flat steel pull rod by adopting an angle steel base plate and a ring beam constructional column and a construction method thereof, mainly relates to a reinforcing method for replacing the steel pull rod by the flat steel pull rod for the seismic reinforcement of the existing masonry structure, and particularly relates to a method for connecting the end part of the flat steel pull rod by adopting the angle steel base plate and the ring beam constructional column with the outer wall of the original structure, wherein the following technical scheme is adopted:
the end part of the flat steel pull rod reinforced masonry structure is connected by adopting an angle steel base plate and a ring beam constructional column and a construction method thereof, and comprises a flat steel pull rod, an angle steel base plate, a tie bolt, a groove, a ring beam and a constructional column as shown in figures 1-8; the flat steel pull rod is arranged in a wall surface ash groove at the lower side of the floor slab or the roof slab and clings to the horizontal position of the wall surface; the flat steel pull rod is made of Q235B flat steel with the width of 100mm and the thickness of 6 mm; the tie base is formed by welding a tie plate, a stiffening rib and a flat steel pull rod; the drawknot plate is provided with a phi 22 connecting hole and is vertically welded with the flat steel pull rod; the stiffening ribs are vertically and centrally welded on the tie plate and the flat steel pull rod; the drawknot bolts are used for connecting the original structure wall body and drawknot bases on two sides of the original structure outer wall and are symmetrically tensioned; the dust removing groove with the groove size of 180mm multiplied by 25mm is an operation space for facilitating connection and tensioning between the flat steel pull rod and the drawknot base; a type-A epoxy resin structural adhesive is filled between the flat steel pull rod and the wall body, and antirust mortar is arranged in the reserved hole and outside the flat steel pull rod in the groove; the flat steel pull rod is connected with the original structure outer wall by adopting an angle steel base plate and is poured together with the ring beam and the constructional column; the angle steel base plate is provided with two oval mounting holes, and the angle steel base plate is fixedly connected with a tie base on the inner side of the outer wall of the original structure through tie bolts; the angle steel backing plate is provided with two oval mounting holes which are adjustable connecting holes, and the connecting position of the drawknot bolt can be adjusted leftwards and rightwards according to the actual engineering situation.
Furthermore, the flat steel pull rod is arranged at the position 120mm below the floor slab or the roof slab and is tightly attached to the wall surface of the original structure wall body to be removed in the groove of the wall surface.
Furthermore, the type of the tie bolt is M20.
Furthermore, the length of the flat steel pull rod and the thickness of the drawknot plate on the drawknot base at the two ends are 30-50 mm less than the net width of the wall body with the original structure.
Further, the drawknot material on the drawknot base be Q235B, wide 100mm, length is 150mm, thickness is made for 10mm band steel, and the reservation clearance with between the original structure wall body is 20 ~ 30 mm.
Furthermore, the stiffening rib material on the tie base is Q235B, the length is 100mm, the width is 50mm, and the thickness is 8mm flat steel.
Furthermore, the angle steel backing plate is equal-edge angle steel of L50 multiplied by 6.
Furthermore, the center distance between two oval mounting holes on the angle steel backing plate is 240mm, and the short diameter of each hole is phi 22.
Furthermore, the antirust mortar is a cement-based tough composite material prepared from polyvinyl alcohol fibers, the strength of the antirust mortar is not lower than M10, the width of a antirust mortar protective layer is 180mm, and the thickness of the antirust mortar protective layer is 25 mm.
Further, the concrete of the ring beam and the constructional column adopts C30 concrete.
Further, the constructional column is provided with column angle steel bars and stirrups, and the column angle steel bars are
Figure BSA0000246511300000021
The reinforcing steel bar and the stirrup are
Figure BSA0000246511300000022
Furthermore, at the joint of the ring beam and the constructional column, the welding length of the steel bars thrown out by the ring beam and the steel bars thrown out by the constructional column is not less than 80 mm.
The end part of the flat steel pull rod reinforced masonry structure is connected by adopting an angle steel base plate and a ring beam structure column and a construction method thereof, and the method comprises the following steps:
the method comprises the following steps: prefabricating a flat steel pull rod and a drawknot base, welding stiffening ribs and a drawknot plate on the flat steel pull rod, and simultaneously manufacturing an angle steel base plate.
Step two: and (5) lofting, drawing lines and removing the grooves on the wall surface for installing the wall body with the original structure.
Step three: and (3) positioning the flat steel pull rod and the drawknot base component on the original structure wall body, adjusting the gap between the drawknot base and the original structure wall body, and positioning the angle steel base plate and the drawknot bolt on the original structure outer wall.
Step four: and respectively drilling holes on the original structure wall body and the original structure outer wall, using the drawknot bolts to drawknot the drawknot bases on the two sides of the original structure wall body in place, and simultaneously using the drawknot bolts to drawknot the angle steel base plate on the outer side of the original structure outer wall and the drawknot base on the inner side of the original structure outer wall to be fixed in place.
Step five: the method comprises the following steps of (1) carrying out prestress tensioning on a drawknot base, a flat steel pull rod, an angle steel base plate, the drawknot base and the flat steel pull rod by tightening a drawknot bolt, wherein the specific tensioning method comprises the following steps: and a special torque wrench is used for tightening the tie bolt for segmental tensioning, and prestress tensioning is ensured to be in place according to the signal prompt of the torque wrench during construction.
Step six: after prestress tensioning, A-type epoxy resin structural adhesive is arranged between the flat steel pull rod and the original structure wall body, the flat steel pull rod is adhered to the original structure wall body, and after the adhesive is solidified, the groove at the position of the bonding base is filled with antirust mortar.
Step seven: and (3) at the angle steel base plate part of the original structure outer wall, erecting a template, binding reinforcing steel bars and stirrups of the ring beam and the constructional column, and pouring the ring beam and the constructional column.
Step eight: and filling joints with the antirust mortar, and trowelling the wall surface to restore the flatness of the wall surface.
Has the advantages that: the end part of the masonry structure reinforced by the flat steel pull rod is connected by the angle steel base plate and the ring beam structural column and the construction method thereof, so that the defects that the steel pull rod is easy to rust and easily affects room decoration and attractiveness in the traditional reinforcement method are overcome, and particularly, the flat steel pull rod is subjected to prestress tensioning, so that the flat steel pull rod has the tensioning force which is more than 5 times that of a round steel pull rod, the cooperative work of the flat steel pull rod and the original structure wall is ensured, and a better anti-seismic reinforcement effect is achieved.
Drawings
FIG. 1 is a schematic plan view of the end of a flat steel tie rod reinforced masonry structure connected by an angle steel backing plate and a ring beam structural column;
FIG. 2 is a sectional view taken along line A-A of FIG. 1;
FIG. 3 is a rough drawing of an angle steel backing plate;
FIG. 4 is a schematic plane view of a masonry structure reinforced by flat steel tie bars by using a tie base;
FIG. 5 is a cross-sectional view taken along line B-B of FIG. 4;
FIG. 6 is a cross-sectional view taken along line C-C of FIG. 4;
FIG. 7 is a front cross-sectional view of a drawknot base;
fig. 8 is a side view of a drawknot base.
In the figure, 1, a flat steel pull rod; 2. tying the bolt; 3. a drawknot plate; 4. a stiffening rib; 5. floor or roof panels; 6. a groove; 7. an original structure wall body; 8. antirust mortar; 9. a type epoxy resin structural adhesive; 10. connecting holes; 11. an angle steel backing plate; 12. an elliptical mounting hole; 13. constructing a column; 14. a ring beam; 15. the original structure outer wall.
Detailed Description
The end part of the flat steel pull rod reinforced masonry structure is connected by adopting an angle steel base plate and a ring beam constructional column and a construction method thereof, and as shown in figures 1-8, the flat steel pull rod reinforced masonry structure comprises a flat steel pull rod 1, an angle steel base plate 11, a tie bolt 2, a groove 6, a ring beam 14 and a constructional column 13; the flat steel pull rod 1 is arranged in a wall surface ash groove 6 which is arranged at the lower side of a floor slab or a roof panel 5 and clings to the horizontal position of a wall surface; the flat steel pull rod 1 is made of flat steel Q235B with the width of 100mm and the thickness of 6 mm; the tie base is formed by welding a tie plate 3, a stiffening rib 4 and a flat steel pull rod 1; the drawknot plate 3 is provided with a phi 22 connecting hole 10 and is vertically welded with the flat steel pull rod 1; the stiffening ribs 4 are vertically and centrally welded on the drawknot plate 3 and the flat steel pull rod 1; the tie bolts 2 are used for connecting the original structure wall 7 and the tie bases on two sides of the original structure outer wall 15 and are symmetrically tensioned; the size of the groove 6 is 180 multiplied by 25mm, and the groove is an operation space for facilitating connection and tensioning between the flat steel pull rod 1 and the drawknot base; a type-A epoxy resin structural adhesive 9 is filled between the flat steel pull rod 1 and the wall, and antirust mortar 8 is arranged in the reserved hole and outside the flat steel pull rod 1 in the groove 6; the flat steel pull rod 1 is connected with an original structure outer wall 15 through an angle steel backing plate 11 and poured together with a ring beam 14 and a constructional column 13; the angle steel backing plate 11 is provided with two oval mounting holes 12, and the angle steel backing plate 11 is fixedly connected with a tie base on the inner side of an outer wall 15 of an original structure through tie bolts 2; the two oval mounting holes 12 on the angle steel backing plate 11 are adjustable connecting holes, and the connecting position of the tie bolt 2 can be adjusted left and right according to the actual engineering situation.
Further, the flat steel pull rod 1 is arranged at the position 120mm below the floor slab or the roof panel 5 and clings to the groove 6 of the wall surface of the original structure wall body 7 and the wall surface removed wall surface.
Further, the type of the drawknot bolt 2 is M20.
Furthermore, the length of the flat steel pull rod 1 and the thickness of the drawknot plates 3 on the drawknot bases at two ends are 30-50 mm less than the net width of the original structural wall 7.
Further, the material of the drawknot plate 3 on the drawknot base is Q235B, the width is 100mm, the length is 150mm, the thickness is made of flat steel of 10mm, and the reserved gap between the drawknot plate and the original structure wall 7 is 20-30 mm.
Furthermore, the stiffening rib 4 on the tie base is made of Q235B, the length is 100mm, the width is 50mm, and the thickness is 8mm flat steel.
Further, the angle iron backing plate 11 is an L50 × 6 equal angle iron.
Further, the center distance between the two oval mounting holes 12 on the angle steel backing plate 11 is 240mm, and the short diameter of each hole is phi 22.
Furthermore, the antirust mortar 8 is a cement-based tough composite material prepared from polyvinyl alcohol fibers, the strength of the antirust mortar 8 is not lower than M10, the width of a protective layer of the antirust mortar 8 is 180mm, and the thickness of the protective layer is 25 mm.
Further, C30 concrete is adopted as the concrete of the ring beam 14 and the construction column 13.
Further, the construction column 13 is provided with column angle steel bars and stirrups, and the column angle steel bars are
Figure BSA0000246511300000041
The reinforcing steel bar and the stirrup are
Figure BSA0000246511300000042
Furthermore, at the joint of the ring beam 14 and the constructional column 13, the welding length of the steel bars thrown out of the ring beam 14 and the steel bars thrown out of the constructional column 13 is not less than 80 mm.
The end part of the flat steel pull rod reinforced masonry structure is connected by adopting an angle steel base plate and a ring beam structure column and a construction method thereof, and the method comprises the following steps:
the method comprises the following steps: prefabricating a flat steel pull rod 1 and a drawknot base, welding a stiffening rib 4 and a drawknot plate 3 on the flat steel pull rod 1, and simultaneously manufacturing an angle steel backing plate 11.
Step two: and (3) lofting, drawing lines and removing the finished grooves 6 on the wall surface of the original structural wall 7.
Step three: the flat steel pull rod 1 and the drawknot base component are put in place on the original structure wall 7, the gap between the drawknot base and the original structure wall 7 is adjusted, and meanwhile, the angle steel backing plate 11 and the drawknot bolt 2 are put in place on the original structure outer wall 15.
Step four: the original structure wall 7 and the original structure outer wall 15 are respectively drilled with holes, the drawknot bases on two sides of the original structure wall 7 are drawn in place by using drawknot bolts 2, and meanwhile, the angle steel base plate 11 on the outer side of the original structure outer wall 15 and the drawknot base on the inner side of the original structure outer wall 15 are fixed in place by using the drawknot bolts 2.
Step five: the method comprises the following steps of tightening a tie bolt 2 to conduct prestress tensioning on a tie base, a flat steel pull rod 1, an angle steel base plate 11, the tie base and the flat steel pull rod 1, wherein the specific tensioning method comprises the following steps: and a special torque wrench is used for tightening the tie bolt 2 for segmental tensioning, and prestress tensioning is ensured to be in place according to the signal prompt of the torque wrench during construction.
Step six: after prestress tensioning, A-type epoxy resin structural adhesive 9 is arranged between the flat steel pull rod 1 and the original structure wall 7, the flat steel pull rod 1 and the original structure wall 7 are adhered, and after the adhesive is solidified, the groove 6 at the position of the bonding base is filled with antirust mortar 8.
Step seven: and (3) erecting a formwork at the position of the angle iron base plate 11 of the original structure outer wall 15, binding the reinforcing steel bars and stirrups of the ring beam 14 and the constructional column 13, and pouring the ring beam 14 and the constructional column 13.
Step eight: and filling joints with the antirust mortar 8, and plastering the wall surface to restore the flatness of the wall surface.
The invention relates to a concrete implementation mode of a flat steel pull rod reinforced masonry structure, which is not limited to the above, and simultaneously applies for an invention patent of 'a tie base connection adopted by a flat steel pull rod reinforced masonry structure and a construction method thereof'.

Claims (9)

1. The end part of the flat steel pull rod reinforced masonry structure is connected by adopting an angle steel base plate and a ring beam structure column and a construction method thereof, and the flat steel pull rod reinforced masonry structure is characterized in that: the steel angle tie-bar comprises a flat steel pull bar (1), an angle steel backing plate (11), a tie bolt (2), a groove (6), a ring beam (14) and a constructional column (13); the flat steel pull rod (1) is arranged in a wall surface mortar groove (6) which is arranged at the lower side of a floor slab or a roof panel (5) and clings to the horizontal position of a wall surface; the flat steel pull rod (1) is made of flat steel Q235B with the width of 100mm and the thickness of 6 mm; the tie base is formed by welding a tie plate (3), a stiffening rib (4) and a flat steel pull rod (1); the drawknot plate (3) is provided with a phi 22 connecting hole (10) and is vertically welded with the flat steel pull rod (1); the stiffening ribs (4) are vertically and centrally welded on the drawknot plate (3) and the flat steel pull rod (1); the drawknot bolts (2) are used for connecting the original structure wall body (7) and drawknot bases on two sides of the original structure outer wall (15) and are symmetrically tensioned; the size of the groove (6) is 180 multiplied by 25mm, and the groove is an operation space for facilitating connection and tensioning between the flat steel pull rod (1) and the drawknot base; a type-A epoxy resin structural adhesive (9) is filled between the flat steel pull rod (1) and the wall body, and antirust mortar (8) is arranged in the reserved hole and outside the flat steel pull rod (1) in the groove (6); the flat steel pull rod (1) is connected with an original structure outer wall (15) by adopting an angle steel backing plate (11) and is poured together with a ring beam (14) and a constructional column (13); the angle steel backing plate (11) is provided with two oval mounting holes (12), and the angle steel backing plate (11) is fixedly connected with a tie base on the inner side of an outer wall (15) of an original structure through tie bolts (2); two oval mounting holes (12) on the angle steel backing plate (11) are adjustable connecting holes, and the connecting position of the tie bolt (2) can be adjusted left and right according to the actual engineering conditions.
2. The end of the masonry structure reinforced by the flat steel pull rods according to claim 1 is connected by an angle steel base plate and a ring beam structure column and a construction method thereof, and is characterized in that: the flat steel pull rod (1) is arranged at the position 120mm below a floor slab or a roof panel (5) and is tightly attached to the wall surface of an original structure wall body (7) in a groove (6) for removing the wall surface.
3. The end of the masonry structure reinforced by the flat steel pull rods according to claim 1 is connected by an angle steel base plate and a ring beam structure column and a construction method thereof, and is characterized in that: the length of the flat steel pull rod (1) and the thickness of the drawknot plates (3) on the drawknot bases at two ends are 30-50 mm less than the net width of the original structure wall body (7).
4. The end of the masonry structure reinforced by the flat steel pull rods according to claim 1 is connected by an angle steel base plate and a ring beam structure column and a construction method thereof, and is characterized in that: the drawknot plate (3) on the drawknot base is made of Q235B material with width of 100mm, length of 150mm and thickness of 10mm flat steel, and the reserved gap between the drawknot plate and the original structure wall body (7) is 20-30 mm.
5. The end of the masonry structure reinforced by the flat steel pull rods according to claim 1 is connected by an angle steel base plate and a ring beam structure column and a construction method thereof, and is characterized in that: the stiffening rib (4) on the tie base is made of Q235B, the length is 100mm, the width is 50mm, and the thickness is 8mm flat steel.
6. The end of the masonry structure reinforced by the flat steel pull rods according to claim 1 is connected by an angle steel base plate and a ring beam structure column and a construction method thereof, and is characterized in that: the angle steel backing plate (11) is equal-edge angle steel with the length of L50 multiplied by 6.
7. The end of the masonry structure reinforced by the flat steel pull rods according to claim 1 is connected by an angle steel base plate and a ring beam structure column and a construction method thereof, and is characterized in that: the center distance of two oval mounting holes (12) on the angle steel backing plate (11) is 240mm, and the short diameter of each hole is phi 22.
8. The end of the masonry structure reinforced by the flat steel pull rods according to claim 1 is connected by an angle steel base plate and a ring beam structure column and a construction method thereof, and is characterized in that: the ring beam (14) and the constructional column (13) adopt C30 concrete, the constructional column (13) is provided with column angle steel bars and stirrups, and the column angle steel bars are
Figure FSA0000246511290000021
The reinforcing steel bar and the stirrup are
Figure FSA0000246511290000022
And at the joint of the ring beam (14) and the constructional column (13), the welding length of the steel bars thrown out of the ring beam (14) and the steel bars thrown out of the constructional column (13) is not less than 80 mm.
9. The end part of the flat steel pull rod reinforced masonry structure according to the claims 1-8 is connected by an angle steel base plate and a ring beam structure column and a construction method thereof, and is characterized in that: the method comprises the following steps:
the method comprises the following steps: prefabricating a flat steel pull rod (1) and a drawknot base, welding a stiffening rib (4) and a drawknot plate (3) on the flat steel pull rod (1), and simultaneously manufacturing an angle steel backing plate (11).
Step two: and (3) lofting, drawing lines and removing the finished grooves (6) on the installation wall surface of the original structural wall body (7).
Step three: the flat steel pull rod (1) and the drawknot base component are put in place on the original structure wall body (7), the gap between the drawknot base and the original structure wall body (7) is adjusted, and meanwhile, the angle steel backing plate (11) and the drawknot bolt (2) are put in place on the original structure outer wall (15).
Step four: holes are respectively drilled on the original structure wall body (7) and the original structure outer wall (15), the drawknot bases on two sides of the original structure wall body (7) are drawn in place by using drawknot bolts (2), and meanwhile, the angle steel base plate (11) on the outer side of the original structure outer wall (15) and the drawknot base on the inner side of the original structure outer wall (15) are drawn and fixed in place by using the drawknot bolts (2).
Step five: the method comprises the following steps of carrying out prestress tensioning on a drawknot base, a flat steel pull rod (1), an angle steel base plate (11), the drawknot base and the flat steel pull rod (1) by screwing a drawknot bolt (2), wherein the specific tensioning method comprises the following steps: and a special torque wrench is used for tightening the tie bolt (2) for sectional tensioning, and the prestress tensioning is ensured to be in place according to the signal prompt of the torque wrench in construction.
Step six: after the prestress is tensioned, A type epoxy resin structural adhesive (9) is arranged between the flat steel pull rod (1) and the original structure wall body (7), the flat steel pull rod (1) is adhered to the original structure wall body (7), and after the adhesive is solidified, the groove (6) at the position of the drawknot base is filled with antirust mortar (8).
Step seven: and (3) erecting a formwork at the position of an angle iron base plate (11) of the original structure outer wall (15), binding reinforcing steel bars and stirrups of the ring beam (14) and the constructional column (13), and pouring the ring beam (14) and the constructional column (13).
Step eight: and filling joints with the antirust mortar (8) and trowelling the wall surface to restore the flatness of the wall surface.
CN202110764532.2A 2021-07-06 2021-07-06 End part of flat steel pull rod reinforced masonry structure is connected by angle steel base plate and ring beam structural column and construction method thereof Pending CN113431372A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110764532.2A CN113431372A (en) 2021-07-06 2021-07-06 End part of flat steel pull rod reinforced masonry structure is connected by angle steel base plate and ring beam structural column and construction method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110764532.2A CN113431372A (en) 2021-07-06 2021-07-06 End part of flat steel pull rod reinforced masonry structure is connected by angle steel base plate and ring beam structural column and construction method thereof

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CN113431372A true CN113431372A (en) 2021-09-24

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CN202110764532.2A Pending CN113431372A (en) 2021-07-06 2021-07-06 End part of flat steel pull rod reinforced masonry structure is connected by angle steel base plate and ring beam structural column and construction method thereof

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