CN105421810A - Prefabricated panel reinforced masonry structure and construction method thereof - Google Patents
Prefabricated panel reinforced masonry structure and construction method thereof Download PDFInfo
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- CN105421810A CN105421810A CN201510945473.3A CN201510945473A CN105421810A CN 105421810 A CN105421810 A CN 105421810A CN 201510945473 A CN201510945473 A CN 201510945473A CN 105421810 A CN105421810 A CN 105421810A
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- prefabricated panel
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- 238000010276 construction Methods 0.000 title claims abstract description 16
- 230000002787 reinforcement Effects 0.000 claims abstract description 41
- 230000003014 reinforcing effect Effects 0.000 claims description 70
- 239000003292 glue Substances 0.000 claims description 12
- 230000005484 gravity Effects 0.000 claims description 12
- 239000004570 mortar (masonry) Substances 0.000 claims description 12
- 238000003466 welding Methods 0.000 claims description 10
- 239000000428 dust Substances 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000011440 grout Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 210000003205 muscle Anatomy 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 239000007943 implant Substances 0.000 claims description 5
- 230000002457 bidirectional effect Effects 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000007373 indentation Methods 0.000 claims description 3
- 239000002356 single layer Substances 0.000 claims description 3
- 239000002344 surface layer Substances 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 abstract 2
- 230000001070 adhesive effect Effects 0.000 abstract 2
- 238000000034 method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004918 carbon fiber reinforced polymer Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000005728 strengthening Methods 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
- 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
- E04G23/0222—Replacing or adding wall ties
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
The invention relates to a prefabricated panel reinforced masonry structure and a construction method thereof, belonging to the technical field of old building reinforcement. The prefabricated panel reinforced masonry structure comprises an original structural column, an original ring beam, an original masonry wall and an added prefabricated panel arranged on the original masonry wall. A beam side throwing-out reinforcement, located at the original ring beam, of the added prefabricated panel is welded by using a connecting reinforcement; the connecting reinforcement passes through a floor slab and is fixed by using a structural adhesive; the added prefabricated panel is overlapped and welded together with the beam side throwing-out reinforcement at the top of a floor through a full-length reinforcement; the full-length reinforcement passes through the original ring beam and is fixed by using the structural adhesive; the added prefabricated panel is reserved with a stubble at the original structural column; and the added prefabricated panel is overlapped and welded together with a column side throwing-out reinforcement at the original structural column, and a structural column is added at the spliced part of the added prefabricated panel. The prefabricated panel reinforced masonry structure is simple and convenient in construction and low in wet construction quantity on the basis that the original masonry structure is reinforced; and the reinforced structure is reasonable in stress, effective in force transfer approach and reliable in connection.
Description
Technical field
The present invention relates to a kind of existing masonry structure to reinforce and method, especially a kind of prefabricated panel reinforcing masonry structure and construction method thereof, belong to reinforcing technique field.
Background technology
In the seventies and eighties in last century, masonry structure building is seasonable and rise, but these masonry structures building exists the defects such as seismic design is unreasonable, construction quality is poor, anti-seismic performance is weak, and therefore in earthquake in recent years, large area is collapsed or damaged.In order to ensure these use safety built, reinforcing existing masonry structure building is economical rationality.Along with the research and development of reinforcing technique, multiple reinforcement means has been applied in Practical Project, as board wall reinforcing method, CFRP Sheet Strengthening Method, glass fiber reinforcement method etc.But these reinforcement means have certain limitation, its wet trade is many, long construction period, affects the use of resident family.In order to reduce the construction period, reducing the impact of construction on resident family, we have proposed a kind of method adopting prefabricated panel to carry out reinforcing masonry structure body of wall.
Summary of the invention
Based on the problems referred to above, the present invention proposes a kind of prefabricated panel reinforcing masonry structure and construction method thereof.Mainly dangerous in order to solve old masonry structure, traditional reinforcement means long construction period, affects resident family and uses, and needs to adopt precast construction to reinforce the technical problem of original structure.
Technical scheme of the present invention is as follows:
A kind of prefabricated panel reinforcing masonry structure, comprise former constructional column, former collar tie beam, former masonry wall, also comprise newly-increased prefabricated panel, the bolt hole on former masonry wall, wherein, described newly-increased prefabricated panel with adopt gravity mortar between former masonry wall and be connected through the bolt of bolt hole; Described newly-increased prefabricated panel one side configuration two way system, and the vertical reinforcement in two way system is arranged in the outside of horizontal reinforcement; Described newly-increased prefabricated panel is provided with in plate surrounding and throws away reinforcing bar; Described newly-increased prefabricated panel throws away reinforcing bar and adopts connecting reinforcement welding on the beam limit at former collar tie beam place, and has built concrete; Described connecting reinforcement through floor, and is fixed by structure glue; Described newly-increased prefabricated panel adopts elongated reinforcing bar to throw away bar splicing with beam limit at floor top and welds; Described elongated reinforcing bar through former collar tie beam, and is fixed by structure glue; Described newly-increased prefabricated panel is reserved with horse tooth trough at former constructional column place; Described newly-increased prefabricated panel throws away bar splicing welding on the post limit at former constructional column place, and has constructional column newly-increased prefabricated panel joint is newly-increased.
Further, stay 20mm space between described newly-increased prefabricated panel and former masonry wall, and adopt the Fast Filling gravity mortar cementation of fissures, namely gravity mortar thickness is 20mm.
Further, described newly-increased dry wall thickness of slab 100mm, adopt C30 concreting, single-layer bidirectional is joined
reinforcing bar.
Further, described concrete adopts C35 slightly expanded concrete to build.
Further, described horse tooth trough is every 300mm indentation body of wall one section, and advanced person retreats.
Further, described beam limit throws away the weld length that reinforcing bar and post limit throw away reinforcing bar and is all not less than 80mm.
Further, described constructional column is provided with post angle steel muscle and stirrup.
Further, described post angle steel muscle is
reinforcing bar, stirrup is
Further, the hole of described bolt periphery adopts grout material to tamp.
The construction method of above-mentioned prefabricated panel reinforcing masonry structure, adopts following steps:
Step one: the surface layer cutting original structure, carries out bolt hole location according to design document and holes;
Step 2: remove dust in bolt hole, ensures clean free from admixture in bolt hole, in place after increasing prefabricated panel location newly, guarantees that newly-increased prefabricated panel slope and position deviation are in allowed band;
Step 3: inserting bolt, the hole grout material of bolt periphery tamps, and newly-increased adopts the Fast Filling gravity mortar cementation of fissures between prefabricated panel and former masonry wall, fastening nut, ensures that newly-increased reliable between prefabricated panel with former masonry wall is connected;
Step 4: colligation constructional column reinforcing bar, throws away reinforcement welding together by the post limit of newly-increased prefabricated panel, after build the concrete of constructional column, reach form removal after design strength until concrete;
Step 5: according to position and size correspondence position boring on floor of connecting reinforcement, dust in cleaning hole, implants connecting reinforcement and fixes by structure glue, connecting reinforcement and beam limit are thrown away reinforcement welding, after concreting, reach form removal after design strength until concrete;
Step 6: the former collar tie beam correspondence position boring at floor top, implants elongated reinforcing bar, fixes by structure glue, the both sides of elongated reinforcing bar are thrown away reinforcement welding with beam limit respectively after dust out, after concreting, reach form removal after design strength until concrete.
Beneficial effect:
It is less on resident's daily life impact that the most significant advantage of the present invention is to adopt prefabricated panel reinforcing masonry structure, and construction is simple, and wet trade is few, force path is clear and definite, connects reliable, can share on prefabricated panel by top vertical load, also more favourable to structural seismic, the method is safe and reliable.Can predict, when economic condition is permitted, if this technology is applied, in existing old masonry residence, adopt prefabricated panel reinforcing masonry structure will have significant realistic meaning.
Accompanying drawing explanation
Fig. 1 is prefabricated panel reinforcing masonry structure schematic diagram of the present invention;
Fig. 2 is prefabricated panel reinforcement location schematic diagram;
Fig. 3 is the A-A sectional drawing of Fig. 1;
Fig. 4 is the B-B sectional drawing of Fig. 1.
In figure, 1: former constructional column; 2: former collar tie beam; 3: bolt hole; 4: former masonry wall; 5: newly-increased prefabricated panel; 6: bolt; 7: grout material; 8: beam limit throws away reinforcing bar; 9: connecting reinforcement; 10: concrete; 11: gravity mortar; 12: elongated reinforcing bar; 13: constructional column; 14: post angle steel muscle; 15: post limit throws away reinforcing bar; 16: stirrup; 17: vertical reinforcement; 18: horizontal reinforcement; 19: horse tooth trough.
Detailed description of the invention
A kind of prefabricated panel reinforcing masonry structure of the present invention, see shown in Fig. 1 to 4, comprise former constructional column 1, former collar tie beam 2, former masonry wall 4, also comprise the newly-increased prefabricated panel 5 on former masonry wall 4, bolt hole 3 (as shown in Figure 1), be connected with bolt 6 and gravity mortar 11 between described newly-increased prefabricated panel 5 with former masonry wall 4, the hole grout material 7 of described bolt 6 periphery tamps, described newly-increased prefabricated panel 5 one side configuration two way system, and vertical reinforcement 17 is arranged in the outside (as shown in Figure 2) of horizontal reinforcement 18, described newly-increased prefabricated panel 5 all throws away reinforcing bar in plate surrounding, described newly-increased prefabricated panel 5 throws away reinforcing bar 8 connecting reinforcement 9 on the beam limit at former collar tie beam 2 place and welds, concreting 10 after welding, described connecting reinforcement 9 is through floor, and fix by structure glue, described newly-increased prefabricated panel 5 throws away reinforcing bar 8 at floor top with elongated reinforcing bar 12 and beam limit and overlaps and weld, described elongated reinforcing bar 12 is through former collar tie beam 2, and fix (as shown in Figure 3) by structure glue, described newly-increased prefabricated panel 5 reserves horse tooth trough 19 at former constructional column 1 place, described newly-increased prefabricated panel 5 throws away reinforcing bar 15 and overlaps welding on the post limit at former constructional column 1 place, and increase constructional column 13 newly at newly-increased prefabricated panel 5 joint, described constructional column 13 is provided with post angle steel muscle 14 and stirrup 16 (as shown in Figure 4), 20mm space is stayed between described newly-increased prefabricated panel 5 and former masonry wall 4, adopt Fast Filling gravity mortar 11 cementation of fissures, the thick 100mm of described newly-increased prefabricated panel 5, adopt C30 concreting, single-layer bidirectional is joined
reinforcing bar, described concrete 10 adopts C35 slightly expanded concrete to build, and described horse tooth trough 19, every 300mm indentation body of wall one section, advanced to retreat, and described beam limit throws away the weld length that reinforcing bar 8 and post limit throw away reinforcing bar 15 and is all not less than 80mm, and described post angle steel muscle 14 is
reinforcing bar, stirrup 16 is
Above-mentioned employing prefabricated panel reinforcing masonry structure, adopts following steps:
Step one: the surface layer cutting original structure, carries out bolt hole 3 according to design document and locates and hole;
Step 2: remove dust in bolt hole 3, ensures clean free from admixture in bolt hole 3, locates rear in place, guarantee that newly-increased prefabricated panel 5 slope and position deviation are in allowed band by newly-increased prefabricated panel 5;
Step 3: inserting bolt 6, the hole grout material 7 of bolt 6 periphery tamps, and newly-increased adopts Fast Filling gravity mortar 11 cementation of fissures between prefabricated panel 5 and former masonry wall 4, fastening nut, ensures that newly-increased reliable between prefabricated panel 5 with former masonry wall 4 is connected;
Step 4: colligation constructional column 13 reinforcing bar, throws away reinforcement welding together by the post limit of newly-increased prefabricated panel 5, after build the concrete of constructional column 13, reach form removal after design strength until concrete;
Step 5: according to position and size correspondence position boring on floor of connecting reinforcement 9, dust in cleaning hole, implants connecting reinforcement 9 and fixes by structure glue, connecting reinforcement 9 and beam limit being thrown away reinforcing bar 8 and welds, after concreting 10, reach form removal after design strength until concrete 10;
Step 6: former collar tie beam 2 correspondence position at floor top is holed, implant elongated reinforcing bar 12 after dust out, fix by structure glue, the both sides of elongated reinforcing bar 12 are thrown away reinforcing bar 8 respectively at beam limit and welds, after concreting 10, reach form removal after design strength until concrete.
Be more than a kind of exemplary embodiment of the present invention, specific embodiment of the invention is not limited thereto.
Claims (10)
1. a prefabricated panel reinforcing masonry structure, comprise former constructional column (1), former collar tie beam (2), former masonry wall (4), it is characterized in that: also comprise the newly-increased prefabricated panel (5) on former masonry wall (4), bolt hole (3), wherein, described newly-increased prefabricated panel (5) with adopt gravity mortar (11) between former masonry wall (4) and be connected through the bolt (6) of bolt hole (3); Described newly-increased prefabricated panel (5) one side configuration two way system, and the vertical reinforcement (17) in two way system is arranged in the outside of horizontal reinforcement (18); Described newly-increased prefabricated panel (5) is provided with in plate surrounding and throws away reinforcing bar; Described newly-increased prefabricated panel (5) throws away reinforcing bar (8) and adopts connecting reinforcement (9) welding on the beam limit at former collar tie beam (2) place, and has built concrete (10); Described connecting reinforcement (9) through floor, and is fixed by structure glue; Described newly-increased prefabricated panel (5) adopts at floor top elongated reinforcing bar (12) and beam limit to throw away reinforcing bar (8) and overlaps and weld; Described elongated reinforcing bar (12) through former collar tie beam (2), and is fixed by structure glue; Described newly-increased prefabricated panel (5) is reserved with horse tooth trough (19) at former constructional column (1) place; Described newly-increased prefabricated panel (5) throws away the welding of reinforcing bar (15) overlap joint on the post limit at former constructional column (1) place, and has constructional column (13) newly-increased prefabricated panel (5) joint is newly-increased.
2. prefabricated panel reinforcing masonry structure according to claim 1, it is characterized in that: between described newly-increased prefabricated panel (5) and former masonry wall (4), stay 20mm space, and adopt Fast Filling gravity mortar (11) cementation of fissures, namely gravity mortar (11) thickness is 20mm.
3. prefabricated panel reinforcing masonry structure according to claim 1, is characterized in that: the thick 100mm of described newly-increased prefabricated panel (5), and adopt C30 concreting, single-layer bidirectional is joined
reinforcing bar.
4. prefabricated panel reinforcing masonry structure according to claim 1, is characterized in that: described concrete (10) adopts C35 slightly expanded concrete to build.
5. prefabricated panel reinforcing masonry structure according to claim 1, is characterized in that: described horse tooth trough (19) is every 300mm indentation body of wall one section, and advanced person retreats.
6. prefabricated panel reinforcing masonry structure according to claim 1, is characterized in that: described beam limit throws away the weld length that reinforcing bar (8) and post limit throw away reinforcing bar (15) and is all not less than 80mm.
7. prefabricated panel reinforcing masonry structure according to claim 1, is characterized in that: described constructional column (13) is provided with post angle steel muscle (14) and stirrup (16).
8. prefabricated panel reinforcing masonry structure according to claim 7, is characterized in that: described post angle steel muscle (14) is
reinforcing bar, stirrup (16) is
9. prefabricated panel reinforcing masonry structure according to claim 1, is characterized in that: the hole of described bolt (6) periphery adopts grout material (7) to tamp.
10. the construction method of the prefabricated panel reinforcing masonry structure according to any one of claim 1-9, is characterized in that: adopt following steps:
Step one: the surface layer cutting original structure, carries out bolt hole (3) according to design document and locates and hole;
Step 2: remove bolt hole (3) interior dust, ensure clean free from admixture in bolt hole (3), in place after increasing prefabricated panel (5) location newly, guarantee that newly-increased prefabricated panel (5) slope and position deviation are in allowed band;
Step 3: inserting bolt (6), the hole grout material (7) of bolt (6) periphery tamps, increase newly and adopt Fast Filling gravity mortar (11) cementation of fissures between prefabricated panel (5) and former masonry wall (4), fastening nut, ensures that newly-increased reliable between prefabricated panel (5) with former masonry wall (4) is connected;
Step 4: colligation constructional column (13) reinforcing bar, the post limit increasing prefabricated panel (5) newly is thrown away reinforcing bar (15) weld together, after build the concrete of constructional column (13), reach form removal after design strength until concrete;
Step 5: according to position and size correspondence position boring on floor of connecting reinforcement (9), dust in cleaning hole, implant connecting reinforcement (9) and fix by structure glue, connecting reinforcement (9) and beam limit are thrown away reinforcing bar (8) weld, after concreting (10), reach form removal after design strength until concrete (10);
Step 6: former collar tie beam (2) correspondence position at floor top is holed, elongated reinforcing bar (12) is implanted after dust out, fix by structure glue, the both sides of elongated reinforcing bar (12) are thrown away respectively reinforcing bar (8) to weld with beam limit, after concreting (10), reach form removal after design strength until concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510945473.3A CN105421810B (en) | 2015-12-17 | 2015-12-17 | Prefabricated wallboard reinforced masonry structure and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510945473.3A CN105421810B (en) | 2015-12-17 | 2015-12-17 | Prefabricated wallboard reinforced masonry structure and construction method thereof |
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| CN105421810A true CN105421810A (en) | 2016-03-23 |
| CN105421810B CN105421810B (en) | 2023-11-21 |
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Cited By (7)
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| CN106801517A (en) * | 2016-12-13 | 2017-06-06 | 宇杰集团股份有限公司 | A kind of schoolhouse surface consolidation of Prefabricated porous plate brick mixed structure strengthens method |
| CN108360839A (en) * | 2018-03-26 | 2018-08-03 | 桂林理工大学 | A kind of old wall hardened system and its construction method |
| CN108952018A (en) * | 2018-08-13 | 2018-12-07 | 南京工业大学 | Reinforcing structure with disconnected sleeve grouting connecting steel bars inside prefabricated shear wall component and construction method thereof |
| CN109488037A (en) * | 2018-11-19 | 2019-03-19 | 沙洲职业工学院 | A kind of environmental protection construction method that private residence is quickly rebuild |
| CN110067401A (en) * | 2019-03-25 | 2019-07-30 | 北京筑福国际抗震技术有限责任公司 | A kind of existing masonry structure is reinforced using prefabricated board wall and its construction method |
| CN114517595A (en) * | 2022-03-10 | 2022-05-20 | 山东省建筑科学研究院有限公司 | Assembly type reinforced existing masonry structure system and construction method thereof |
| CN115478706A (en) * | 2022-09-05 | 2022-12-16 | 中建八局第三建设有限公司 | Construction method for widening corridor with cantilever structure |
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| CN106801517A (en) * | 2016-12-13 | 2017-06-06 | 宇杰集团股份有限公司 | A kind of schoolhouse surface consolidation of Prefabricated porous plate brick mixed structure strengthens method |
| CN106801517B (en) * | 2016-12-13 | 2020-06-16 | 宇杰集团股份有限公司 | External reinforcing and reinforcing method for school shed with prefabricated porous plate brick mixed structure |
| CN108360839A (en) * | 2018-03-26 | 2018-08-03 | 桂林理工大学 | A kind of old wall hardened system and its construction method |
| CN108952018A (en) * | 2018-08-13 | 2018-12-07 | 南京工业大学 | Reinforcing structure with disconnected sleeve grouting connecting steel bars inside prefabricated shear wall component and construction method thereof |
| CN108952018B (en) * | 2018-08-13 | 2020-03-27 | 南京工业大学 | Reinforcing structure with disconnected sleeve grouting connecting steel bars inside prefabricated shear wall component and construction method thereof |
| CN109488037A (en) * | 2018-11-19 | 2019-03-19 | 沙洲职业工学院 | A kind of environmental protection construction method that private residence is quickly rebuild |
| WO2020103624A1 (en) * | 2018-11-19 | 2020-05-28 | 沙洲职业工学院 | Environmentally friendly construction method for rapidly renovating private house |
| CN110067401A (en) * | 2019-03-25 | 2019-07-30 | 北京筑福国际抗震技术有限责任公司 | A kind of existing masonry structure is reinforced using prefabricated board wall and its construction method |
| CN114517595A (en) * | 2022-03-10 | 2022-05-20 | 山东省建筑科学研究院有限公司 | Assembly type reinforced existing masonry structure system and construction method thereof |
| CN114517595B (en) * | 2022-03-10 | 2023-12-08 | 山东省建筑科学研究院有限公司 | Assembled reinforced existing masonry structure system and construction method thereof |
| CN115478706A (en) * | 2022-09-05 | 2022-12-16 | 中建八局第三建设有限公司 | Construction method for widening corridor with cantilever structure |
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