CN110905220B - Reinforced concrete structure buckling-restrained energy-dissipation brace installation construction method - Google Patents
Reinforced concrete structure buckling-restrained energy-dissipation brace installation construction method Download PDFInfo
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- CN110905220B CN110905220B CN201911297304.8A CN201911297304A CN110905220B CN 110905220 B CN110905220 B CN 110905220B CN 201911297304 A CN201911297304 A CN 201911297304A CN 110905220 B CN110905220 B CN 110905220B
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- 238000009434 installation Methods 0.000 title claims abstract description 27
- 238000010276 construction Methods 0.000 title claims abstract description 13
- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 9
- 230000021715 photosynthesis, light harvesting Effects 0.000 title claims abstract description 5
- 238000003466 welding Methods 0.000 claims abstract description 52
- 239000004567 concrete Substances 0.000 claims abstract description 21
- 238000002360 preparation method Methods 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 10
- 239000004035 construction material Substances 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 7
- 238000007689 inspection Methods 0.000 claims abstract description 7
- 239000010959 steel Substances 0.000 claims abstract description 7
- 230000000149 penetrating effect Effects 0.000 claims description 10
- 244000025254 Cannabis sativa Species 0.000 claims description 6
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 claims description 6
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 claims description 6
- 235000009120 camo Nutrition 0.000 claims description 6
- 235000005607 chanvre indien Nutrition 0.000 claims description 6
- 239000011487 hemp Substances 0.000 claims description 6
- 230000002787 reinforcement Effects 0.000 claims description 6
- 230000007547 defect Effects 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 230000004927 fusion Effects 0.000 claims description 3
- 230000035515 penetration Effects 0.000 claims description 3
- 238000012797 qualification Methods 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 206010028980 Neoplasm Diseases 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000007306 turnover Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 2
- 210000002435 tendon Anatomy 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses a method for installing and constructing a reinforced concrete structure buckling restrained energy dissipation brace, which comprises the steps of preparation of construction materials, installation of embedded parts, hoisting of the buckling brace, welding, inspection and acceptance and the like which are sequentially carried out; the preparation of construction materials comprises the preparation of a lower embedded part, an upper embedded part, a lower jig frame, an upper jig frame, a buckling support and a hanging seat in advance, wherein the lower jig frame and the upper jig frame are made of channel steel; the embedded part comprises a lower embedded part and an upper embedded part, and the embedded part has the following beneficial effects: the jig frame is used for replacing the buckling support to fixedly connect the embedded parts before concrete pouring, so that the relative positions of the embedded parts are accurate, and the jig frame can be dismantled for turnover use after the concrete pouring is completed; the earthquake resistance of the concrete structure is obviously improved by effectively utilizing the performance of steel materials; the construction and the installation are simple, the performance is reliable, and the influence on the construction of the concrete structure is small; the buckling supports are replaceable, and the maintenance is simple and environment-friendly.
Description
Technical Field
The invention relates to the technical field of buckling restrained brace installation methods, in particular to an installation construction method of a buckling restrained energy-consuming brace of a reinforced concrete structure.
Background
Compared with the traditional supporting member, the buckling restrained brace has more stable mechanical property, can yield and not buckle when being pulled and pressed, has high strength and high ductility, and can better exert good hysteresis energy consumption capability of steel due to the characteristic of difficult yielding after being reasonably designed, so that the buckling restrained brace has the advantages of a central support and a hysteresis energy consumption element, and has good application value.
Disclosure of Invention
In order to solve the problems, the invention provides a method for installing and constructing the buckling restrained brace of the reinforced concrete structure, which is realized by the following technical scheme.
The method comprises the steps of preparation of construction materials, installation of embedded parts, hoisting of buckling supports, welding, inspection and acceptance and the like which are sequentially carried out;
The preparation of the construction materials comprises the preparation of a lower embedded part, an upper embedded part, a lower jig frame, an upper jig frame, a buckling support and a hanging seat in advance, wherein the lower jig frame and the upper jig frame are made of channel steel;
The embedded part installation comprises lower embedded part installation and upper embedded part installation.
Further, the embedded part comprises a first pouring seat and a first welding seat, wherein the first pouring seat and the first welding seat are fixedly connected with each other in a vertical mode, and the first pouring seat is densely provided with reinforcement penetrating holes; the upper embedded part comprises a second pouring seat and a second welding seat symmetrically fixedly connected to the lower surface of the second pouring seat; four lifting lugs are welded on the upper surface of the buckling support in a rectangular mode; the hanging seat comprises a fixed plate and a hanging plate which are fixedly connected with each other, the hanging plate and the fixed plate are arranged in a T shape, and hanging holes are formed in the hanging plate.
Further, the embedment installation includes the steps of:
S1: aligning the tendon penetrating holes of the lower embedded part with the main tendons on the base beam, penetrating the lower embedded part downwards, and symmetrically arranging the two lower embedded parts;
S2: adjusting the elevation of the stirrup at the lower end of the embedded part, binding the stirrup with the main reinforcement, and then clamping the bolt of the embedded part on the stirrup;
s3: the lower end of the embedded part is bound on the main rib by using fire wires by adjusting the axis, and then the verticality of the embedded part is adjusted;
S4: and fixing two ends of the lower jig frame between the two lower embedded parts through bolts, welding the lower embedded parts with the main ribs, pouring a concrete column, and dismantling the lower jig frame after the concrete column is solidified.
Further, the upper embedded part installation comprises the following steps:
S1: the upper clamping fixture is fixed at two ends of the upper embedded part through bolts, the upper clamping fixture and the upper embedded part are integrally hoisted in place, and then the lower ends of the two upper clamping fixtures are respectively fixedly connected with one of the lower embedded parts through bolts;
s2: and pouring the top beam, and removing the upper jig frame after the top beam is poured.
Further, the hoisting buckling restrained brace comprises the following steps:
S1: firstly, fixedly connecting hanging seats on two sides of an upper embedded part through bolts, and winding hemp ropes on a concrete column to be used as chain-pouring hooks;
S2: and placing the buckling support on square timber, and then hoisting the buckling support through a hanging seat and a hemp rope, so as to hoist the buckling support in place.
Further, the buckling support is to be welded between a first welding seat and a second welding seat on the same side, the welding is in a full penetration groove form of manual arc welding of the welding rod, the welding rod adopts E50 series welding rods, a welding rod drying box is arranged on a construction site, and the welding rod needs to be baked before being used.
Further, the inspection acceptance is that the welding seam is inspected, and the qualification standard of the welding seam is as follows: the surface has no defects of cracks, incomplete full welding, incomplete fusion, air hole ash welding, burls and the like, the seam undercut depth is not more than 0.5mm, the total length of undercut at two sides is not more than 10 percent and not more than 25mm of the total length of the seam, and the seam offset is not more than 10 percent of the plate thickness and not more than 2mm.
The invention has the following beneficial effects:
1. the jig frame is used for replacing the buckling support to fixedly connect the embedded parts before concrete pouring, so that the relative positions of the embedded parts are accurate, and the jig frame can be dismantled for turnover use after the concrete pouring is completed;
2. the earthquake resistance of the concrete structure is obviously improved by effectively utilizing the performance of steel materials;
3. The construction and the installation are simple, the performance is reliable, and the influence on the construction of the concrete structure is small;
4. the buckling supports are replaceable, and the maintenance is simple and environment-friendly.
Drawings
In order to more clearly illustrate the technical solutions of the present invention, the drawings that are needed in the description of the specific embodiments will be briefly described below, it being obvious that the drawings in the following description are only some examples of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1: the structure of the buried piece is schematically shown;
fig. 2: the upper embedded part is structurally schematic;
fig. 3: the structure schematic diagram of the hanging seat is provided;
fig. 4: the buckling restrained brace is structurally characterized in that the buckling restrained brace is formed by a plurality of buckling supporting rods;
fig. 5: the invention relates to an installation schematic diagram of an embedded part;
Fig. 6: the invention relates to an installation schematic diagram of an upper embedded part;
fig. 7: the invention discloses a hoisting and laying schematic diagram of a buckling support;
fig. 8: the invention discloses a hoisting and positioning schematic diagram of a buckling support.
The reference numerals are as follows:
1-buried part, 101-first pouring seat, 102-first welding seat, 103-reinforcement penetrating hole, 2-buried part, 201-second pouring seat, 202-second welding seat, 3-lower jig frame, 4-upper jig frame, 5-buckling support, 501-lifting lug, 6-hanging seat, 601-fixed plate, 602-hanging plate and 603-hanging hole.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
1-8, A reinforced concrete structure buckling restrained energy dissipation brace installation construction method comprises the steps of preparation of construction materials, installation of embedded parts, hoisting buckling braces, welding, inspection and acceptance and the like which are sequentially carried out;
The preparation of construction materials comprises the preparation of a lower embedded part 1, an upper embedded part 2, a lower jig frame 3, an upper jig frame 4, a buckling support 5 and a hanging seat 6, wherein the lower jig frame 3 and the upper jig frame 4 are made of channel steel;
the embedded part installation comprises lower embedded part installation and upper embedded part installation.
Preferably, the embedded part 1 comprises a first pouring seat 101 and a first welding seat 102, wherein the first pouring seat 101 and the first welding seat 102 are fixedly connected with each other in a vertical and fixedly connected mode, and the first pouring seat 101 is densely provided with reinforcement penetrating holes 103; the upper embedded part 2 comprises a second pouring seat 201 and a second welding seat 202 symmetrically fixedly connected to the lower surface of the second pouring seat 201; four lifting lugs 501 are welded on the upper surface of the buckling support 5 in a rectangular manner; the hanging seat 6 comprises a fixed plate 601 and a hanging plate 602 which are fixedly connected with each other, the hanging plate 602 and the fixed plate 601 are arranged in a T shape, and hanging holes 603 are formed in the hanging plate 602.
Preferably, the embedment mounting includes the steps of:
s1: aligning the rib penetrating holes 103 of the lower embedded part 1 with main ribs on the base beam, penetrating the lower embedded part 1 downwards, and symmetrically arranging two lower embedded parts 1;
s2: adjusting the elevation of a stirrup at the lower end of the embedded part 1, binding the stirrup with the main reinforcement, and then clamping the bolt of the embedded part on the stirrup;
S3: the lower end of the embedded part 1 is bound on the main reinforcement by using fire wires by adjusting the axis, and then the verticality of the embedded part 1 is adjusted;
s4: and fixing two ends of the lower jig frame 3 between the two lower embedded parts 1 through bolts, then welding the lower embedded parts 1 with the main ribs, pouring a concrete column, and dismantling the lower jig frame 3 after the concrete column is solidified.
Preferably, the upper embedded part mounting comprises the following steps:
s1: the upper clamping fixture 4 is fixed at two ends of the upper embedded part 2 through bolts, the upper clamping fixture 4 and the upper embedded part 2 are integrally hoisted in place, and then the lower ends of the two upper clamping fixtures 4 are respectively fixedly connected with one of the lower embedded parts 1 through bolts;
S2: and (5) pouring the top beam, and removing the upper jig frame 4 after the top beam is poured.
Preferably, the hoisting buckling restrained brace comprises the following steps:
S1: firstly, fixedly connecting hanging seats 6 on two sides of an upper embedded part 2 through bolts, and winding hemp ropes on a concrete column to be used as chain links;
s2: and placing the buckling support 5 on square timber, and then hoisting the buckling support 5 through a hanging seat 6 and a hemp rope, so as to hoist the buckling support 5 in place.
Preferably, the buckling restrained brace 5 is welded between the first welding seat 102 and the second welding seat 202 on the same side, the welding is in the form of a full penetration groove of manual arc welding by using an E50 series welding rod, a welding rod drying box is arranged on a construction site, and the welding rod needs to be baked before being used.
Preferably, the weld joint is inspected after inspection and acceptance, and the qualification standard of the weld joint is as follows: the surface has no defects of cracks, incomplete full welding, incomplete fusion, air hole ash welding, burls and the like, the seam undercut depth is not more than 0.5mm, the total length of undercut at two sides is not more than 10 percent and not more than 25mm of the total length of the seam, and the seam offset is not more than 10 percent of the plate thickness and not more than 2mm.
Principle of operation
According to the invention, the lower embedded part 1 and the upper embedded part 2 are positioned before the buckling support is installed by the jig frame, so that the change of the positions of the lower embedded part 1 and the upper embedded part 2 in the concrete pouring process can be effectively avoided, and the positions of the lower embedded part 1 and the upper embedded part 2 are ensured to be accurate after pouring.
The jig frame can be detached for turnover use, so that the waste of materials can be effectively avoided, the recycled jig frame also enables the buckling support to be convenient to install, and the preparation time of the materials can be reduced.
The anti-seismic capability of the poured concrete structure can be remarkably improved through the buckling supports 5.
The buckling support 5 is simple and convenient to install, and meanwhile, on the basis of improving the performance of concrete, the construction influence on the concrete structure is reduced to the minimum.
The buckling supports 5 can be replaced, so that the maintenance of the buckling supports is simpler.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (3)
1. A reinforced concrete structure buckling-restrained energy-dissipation brace installation construction method is characterized in that: the method for installing and constructing the buckling restrained brace comprises the following steps of preparation of construction materials, installation of embedded parts, hoisting of the buckling brace, welding, inspection and acceptance in sequence;
The preparation of the construction materials comprises the preparation of a lower embedded part (1), an upper embedded part (2), a lower jig frame (3), an upper jig frame (4), a buckling support (5) and a hanging seat (6), wherein the lower jig frame (3) and the upper jig frame (4) are made of channel steel;
The embedded part (1) comprises a first pouring seat (101) and a first welding seat (102), wherein the first pouring seat (101) is fixedly connected with the first welding seat (102) in a mutually vertical mode, and rib penetrating holes (103) are densely distributed in the first pouring seat (101); the upper embedded part (2) comprises a second pouring seat (201) and a second welding seat (202) symmetrically fixedly connected to the lower surface of the second pouring seat (201); four lifting lugs (501) are welded on the upper surface of the buckling support (5) in a rectangular mode; the lifting seat (6) comprises a fixed plate (601) and a lifting plate (602) which are fixedly connected with each other, the lifting plate (602) and the fixed plate (601) are arranged in a T shape, and a lifting hole (603) is formed in the lifting plate (602);
The embedded part installation comprises lower embedded part installation and upper embedded part installation; wherein, the buried piece installation includes the following steps:
s1: aligning the rib penetrating holes (103) of the lower embedded part (1) with the main ribs on the base beam, penetrating the lower embedded part (1) downwards, and symmetrically arranging two lower embedded parts (1);
S2: adjusting the elevation of a stirrup at the lower end of the embedded part (1), binding the stirrup with the main reinforcement, and then clamping the bolt of the embedded part on the stirrup;
s3: the lower end of the embedded part (1) is bound on the main rib by using fire wires by adjusting the axis, and then the verticality of the embedded part (1) is adjusted;
S4: two ends of the lower jig frame (3) are fixed between the two lower embedded parts (1) through bolts, then the lower embedded parts (1) are welded with the main ribs, pouring of concrete columns is carried out, and the lower jig frame (3) is disassembled after the concrete columns are solidified;
The upper embedded part installation comprises the following steps:
s1: the upper clamping fixture (4) is fixed at two ends of the upper embedded part (2) through bolts, the upper clamping fixture (4) and the upper embedded part (2) are integrally hoisted in place, and then the lower ends of the two upper clamping fixtures (4) are respectively fixedly connected with one of the lower embedded parts (1) through bolts;
S2: pouring the top beam, and dismantling the upper jig frame (4) after the top beam is poured;
The hoisting buckling restrained brace comprises the following steps:
s1: firstly, fixedly connecting hanging seats (6) on two sides of an upper embedded part (2) through bolts, and winding hemp ropes on a concrete column to be used as chain-pouring hooks;
S2: and placing the buckling support (5) on square timber, and then hoisting the buckling support (5) through a hanging seat (6) and a hemp rope, so as to hoist the buckling support (5) in place.
2. The method for installing and constructing the buckling restrained brace of the reinforced concrete structure according to claim 1, wherein the method comprises the following steps: the buckling support (5) is welded between a first welding seat (102) and a second welding seat (202) on the same side, the welding adopts a full penetration groove form of manual arc welding of a welding rod, the welding rod adopts an E50 series welding rod, a welding rod drying box is arranged on a construction site, and the welding rod needs to be baked before being used.
3. The method for installing and constructing the buckling restrained brace of the reinforced concrete structure according to claim 1, wherein the method comprises the following steps: the inspection acceptance is that the welding seam is inspected, and the qualification standard of the welding seam is as follows: the surface has no crack, incomplete full welding, incomplete fusion, air hole ash welding and tumor defect, the seam undercut depth is not more than 0.5mm, the total length of the two side undercuts is not more than 10% of the total length of the seam, and is not more than 25mm, and the seam offset is not more than 10% of the plate thickness, and is not more than 2mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911297304.8A CN110905220B (en) | 2019-12-17 | 2019-12-17 | Reinforced concrete structure buckling-restrained energy-dissipation brace installation construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911297304.8A CN110905220B (en) | 2019-12-17 | 2019-12-17 | Reinforced concrete structure buckling-restrained energy-dissipation brace installation construction method |
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| Publication Number | Publication Date |
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| CN110905220A CN110905220A (en) | 2020-03-24 |
| CN110905220B true CN110905220B (en) | 2024-06-04 |
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| CN115012534B (en) * | 2022-06-01 | 2024-04-05 | 中冶(上海)钢结构科技有限公司 | Method for installing complex embedded part in steel rib column |
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| CN101672071A (en) * | 2009-09-17 | 2010-03-17 | 同济大学 | Vertical reinforced concrete component-connection node of buckling-restrained brace |
| CN103643800A (en) * | 2013-12-12 | 2014-03-19 | 中建二局第三建筑工程有限公司 | Lifting installation system for buckling restrained supporting member and construction method thereof |
| CN103982046A (en) * | 2014-04-11 | 2014-08-13 | 中建四局第六建筑工程有限公司 | Lifting and installation method of buckling restrained braces |
| CN105952229A (en) * | 2016-05-24 | 2016-09-21 | 成都市第建筑工程公司 | Installation and construction method for energy-dissipating type buckling-restrained brace |
| CN106760841A (en) * | 2016-12-01 | 2017-05-31 | 北京城建建设工程有限公司 | A kind of construction method of buckling restrained brace structure |
| CN107965065A (en) * | 2017-10-30 | 2018-04-27 | 常州第建筑集团有限公司 | Buckling support Combined type pre-embedded member construction method |
| CN208650282U (en) * | 2018-07-25 | 2019-03-26 | 江苏蓝科减震科技有限公司 | A kind of precast support girder connection embedded part |
-
2019
- 2019-12-17 CN CN201911297304.8A patent/CN110905220B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101672071A (en) * | 2009-09-17 | 2010-03-17 | 同济大学 | Vertical reinforced concrete component-connection node of buckling-restrained brace |
| CN103643800A (en) * | 2013-12-12 | 2014-03-19 | 中建二局第三建筑工程有限公司 | Lifting installation system for buckling restrained supporting member and construction method thereof |
| CN103982046A (en) * | 2014-04-11 | 2014-08-13 | 中建四局第六建筑工程有限公司 | Lifting and installation method of buckling restrained braces |
| CN105952229A (en) * | 2016-05-24 | 2016-09-21 | 成都市第建筑工程公司 | Installation and construction method for energy-dissipating type buckling-restrained brace |
| CN106760841A (en) * | 2016-12-01 | 2017-05-31 | 北京城建建设工程有限公司 | A kind of construction method of buckling restrained brace structure |
| CN107965065A (en) * | 2017-10-30 | 2018-04-27 | 常州第建筑集团有限公司 | Buckling support Combined type pre-embedded member construction method |
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| CN110905220A (en) | 2020-03-24 |
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