CN203201172U - Existing masonry structure adopting technology of directly increasing layers by lightweight steel construction - Google Patents

Existing masonry structure adopting technology of directly increasing layers by lightweight steel construction Download PDF

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Publication number
CN203201172U
CN203201172U CN 201320189912 CN201320189912U CN203201172U CN 203201172 U CN203201172 U CN 203201172U CN 201320189912 CN201320189912 CN 201320189912 CN 201320189912 U CN201320189912 U CN 201320189912U CN 203201172 U CN203201172 U CN 203201172U
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CN
China
Prior art keywords
steel
roof
existing masonry
add
newly
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Expired - Fee Related
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CN 201320189912
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Chinese (zh)
Inventor
董有
鞠树森
谢建明
万兆
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BEIJING ZHUFU CONSTRUCTION ENGINEERING Co Ltd
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BEIJING ZHUFU CONSTRUCTION ENGINEERING Co Ltd
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Priority to CN 201320189912 priority Critical patent/CN203201172U/en
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Publication of CN203201172U publication Critical patent/CN203201172U/en
Expired - Fee Related legal-status Critical Current
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Abstract

The utility model relates to an existing masonry structure adopting a technology of directly increasing layers by a lightweight steel construction and a construction method thereof and belongs to the field of structural seismic resistance and reinforcement. Before the masonry structure adopts the lightweight steel construction to directly increase layers, firstly, a parapet, a cornice and a roof waterproof part of the original masonry structure are removed; then bars are planted into roof structural columns and reinforcements of a ring beam and a roof overlapped layer and embedded screws in the newly added ring beam are added; and the steel bars planted into the roof structural columns, the reinforcements of the newly added ring beam, the reinforcements of the roof overlapped layer, the embedded screws and the like are subjected to integral pouring so as to effectively join a new structure and an old structure into one whole body. When concrete intensity reaches over 70 percent, the upper lightweight steel construction is installed. According to the utility model, by adopting the lightweight steel construction to carry out direct layer increasing improvement on the existing masonry structure, the difficult problem of housing shortage of people can be relieved and meanwhile, a great amount of land resources are saved; and the existing masonry structure adopting the technology of directly increasing layers by the lightweight steel construction and the construction method thereof have obvious economic benefits and social benefits.

Description

Adopt lightweight steel construction directly to add the existing masonry structure of layer technology
Technical field
The utility model relates to a kind of existing masonry structure that adopts lightweight steel construction directly to add layer technology, belongs to the seismic hardening technical field.
Background technology
Along with China's economic society enters the fast-developing phase, land resources day is becoming tight, and building energy consumption proportion in total energy consumption raises, and the renovation and utilization of existing building has become one of bottleneck of urban construction and development.Utilize the dilatation that layer technology solves existing building that adds of science, realize the building energy conservation problem better by transforming, should become the key areas that government and relevant enterprise are paid close attention to and studied.In recent years, many existing buildings are owing to restricted by at that time economic condition and Building technology, can not satisfy new demand at aspects such as the form of the degree of perfection of building function and building structure, the original areas of building.Therefore need increase the number of plies to enlarge usable floor area at the existing building thing.Will increase land area of one unit house floor like this, save the city ancillary facility, save investment and material, can avoid advantages such as complicated trival matters such as removal again.By storey-adding reconstruction, simultaneously the existing building thing is reinforced, can prolong existing building thing service life, the storey-adding reconstruction of existing building will be development trend in recent years.
The utility model content
The purpose of this utility model is to solve a difficult problem that exists in the above-mentioned prior art, a kind of existing masonry structure that adopts lightweight steel construction directly to add layer technology is provided, it can alleviate the difficult problem of present people's acute housing shortage by existing masonry structure is adopted the direct storey-adding reconstruction of lightweight steel construction.
The technical solution of the utility model is as follows:
A kind of existing masonry structure that adopts lightweight steel construction directly to add layer technology, removing parapet, cornicing and the existing masonry structure top of roof water-proof is provided with lightweight steel construction, wherein, existing masonry structure roof construction post is provided with and newly adds collar tie beam, the original structure roof panel of having removed existing masonry structure roof water-proof is provided with and newly adds overlapping layers, simultaneously, newly add collar tie beam and be provided with layer steel column that add that constitutes described lightweight steel construction, the described layer steel column bottom that add is connected at the constructional column place with existing masonry structure by suspension column lower bolster, M16 pre embedded bolt; Described existing masonry structure roof construction post is provided with chemically-planted steel bar, and described newly adding is provided with steel mesh reinforcement in the overlapping layers, and described newly adding is provided with arrangement of reinforcement in the collar tie beam; Described M16 pre embedded bolt respectively with the arrangement of reinforcement that newly adds collar tie beam, newly add the steel mesh reinforcement of overlapping layers and the chemically-planted steel bar of roof construction post and be connected, and wholely adopt the concrete cast together.
Described a kind of existing masonry structure that adopts lightweight steel construction directly to add layer technology, the described layer steel column that add is welded by steel column, suspension column upper padding plate, stiffening rib.
Described a kind of existing masonry structure that adopts lightweight steel construction directly to add layer technology, described steel column is H shaped steel or i iron or rigid steel pile.
Described a kind of existing masonry structure that adopts lightweight steel construction directly to add layer technology, the described thickness that newly adds overlapping layers is 40mm, the specification of described steel mesh reinforcement is 6 (200~300) * (200~300) mm, described concrete strength grade is not less than C30, described newly-increased collar tie beam is of a size of 240mm * 240mm, the length that described M16 pre embedded bolt deeply newly adds collar tie beam is not less than 200mm, the appearance and size of described suspension column upper padding plate and suspension column lower bolster is 240mm * 240mm, and thickness is 10mm.
Described a kind of existing masonry structure that adopts lightweight steel construction directly to add layer technology, the described overlapping layers that newly adds is the globality that adds the floor layer in order to strengthen, original structure roof panel after existing masonry structure is removed former roof water-proof is beaten the plain ash of one deck cement, spread steel mesh reinforcement, add the collar tie beam whole floor of concreting formation together then and newly.
Described a kind of existing masonry structure that adopts lightweight steel construction directly to add layer technology, the used reinforcing bar of described chemically-planted steel bar adopts HRB335 level hot rolled ribbed steel bar, and the degree of depth that reinforcing bar is implanted the roof construction post is not less than 200mm, and the reinforcing bar bore diameter is not less than 25mm.
Described a kind of existing masonry structure that adopts lightweight steel construction directly to add layer technology, described lightweight steel construction top is provided with the light section steel structure pitched roof.
Described chemically-planted steel bar, chemical grouting material and cementing agent should adopt adhesion strength height, little, ageing-resistant, nontoxic chemical grouting material and the cementing agent of shrinkage.
Above-mentioned employing lightweight steel construction directly adds the existing masonry structure job practices of layer technology, and concrete steps are as follows:
Step 1: remove parapet on the existing masonry structure, cornice and roof water-proof;
Step 2: the place carries out chemically-planted steel bar at existing masonry structure roof construction post;
Step 3: newly add the arrangement of reinforcement of collar tie beam, newly add the steel mesh reinforcement arrangement of reinforcement of overlapping layers, and will newly add the arrangement of reinforcement of collar tie beam, the steel mesh reinforcement that newly adds overlapping layers is connected with implantation reinforcing bar in the roof construction post respectively;
Step 4: with suspension column lower bolster and M16 pre embedded bolt with the arrangement of reinforcement of Xin Jia collar tie beam, newly add the steel mesh reinforcement of overlapping layers, the reinforcing bar that the roof construction post is implanted is connected;
Step 5: with the reinforcing bar implanted in the roof construction post, newly add the arrangement of reinforcement of collar tie beam, the steel mesh reinforcement and the M16 pre embedded bolt that newly add overlapping layers carry out the concrete monobloc cast;
Step 6: when concrete strength reaches 70% when above, will add layer steel column the installing hole correspondence of suspension column upper padding plate be installed on the M16 pre embedded bolt of suspension column lower bolster, undertaken fasteningly by nut, nut and M16 pre embedded bolt are welded after fastening;
Step 7: carry out the installation on top lightweight steel construction and roof.
Beneficial effect:
Existing masonry structure adopts lightweight steel construction directly to add the principle that layer should be followed " first seismic hardening, back storey-adding reconstruction ".Masonry structure directly add layer should with detect and qualification result as the design considerations of its adding storey structure.Existing masonry structure adopts lightweight steel construction directly to add layer at first should satisfy the bearing capacity of foundation and the requirement of deformability, or can directly add the house of layer after consolidation process.Adopt lightweight steel construction directly to add layer simultaneously and also be applicable to the masonry structure that load-carrying members such as foundation bearing capacity, constructional column have certain potentiality to dig, and the situation of some safety stocks is also arranged after adding layer.Masonry structure adopts lightweight steel construction directly to add layer technology can increase by 1 layer to 3 layers according to engineering actual conditions and needs, and this technology is preferably implemented together in conjunction with old residential quarter flat-changed-into-sloping improvement project.
Advantages such as it is clear and definite to the utlity model has the power transmission route, and Stiffness Distribution is reasonable, and construction measure is reliable.The junction of the old and new's structure connects by increasing collar tie beam, overlapping layers and constructional column bar planting etc., can improve existing masonry structure like this adopts lightweight steel construction directly to add globality and the space rigidity of layer, make to add the newly-increased light steel load of layer segment and evenly pass on the original building, prevent from adding layer back and produce a differential settlement.By existing masonry structure is adopted the direct storey-adding reconstruction of lightweight steel construction, can alleviate the difficult problem of present people's acute housing shortage, also saved national a large amount of land resources simultaneously, have remarkable economic efficiency and social benefit.
Description of drawings
Fig. 1 adds layer steel column and newly adds collar tie beam, overlapping layers connection layout for existing masonry structure;
Fig. 2 is that the A of Fig. 1 is to view;
Fig. 3 newly adds collar tie beam, newly adds the connection layout of overlapping layers and original wall body, floor for existing masonry structure;
Fig. 4 is the A-A sectional drawing of Fig. 3;
Among the figure, 1: add a layer steel column; 2: the suspension column upper padding plate; 3: the suspension column lower bolster; The 4:M16 pre embedded bolt; 5: newly add collar tie beam; 6: stiffening rib; 7, the reinforcing bar of Zhi Ruing; 8: newly add overlapping layers; 9: the original structure roof panel; 10: the roof construction post; 11: steel mesh reinforcement; 12: nut.
The specific embodiment
The utility model is a kind of existing masonry structure that adopts lightweight steel construction directly to add layer technology, and this technology is after former masonry structure is handled through seismic hardening, adopts lightweight steel construction directly to add layer on its top, roof.The specific embodiment is shown in Fig. 1-4.
Removing parapet, cornicing and the existing masonry structure top of roof water-proof is provided with lightweight steel construction, wherein, existing masonry structure roof construction post 10 is provided with and newly adds collar tie beam 5, the original structure roof panel 9 of having removed existing masonry structure roof water-proof is provided with and newly adds overlapping layers 8, simultaneously, newly add collar tie beam 5 be provided with constitute lightweight steel construction add layer steel column 1, add layer steel column 1 bottom and be connected at constructional column 10 places with existing masonry structure by suspension column lower bolster 3, M16 pre embedded bolt 4; Existing masonry structure roof construction post 10 is provided with chemically-planted steel bar (as shown in Figure 3, Figure 4), newly adds to be provided with steel mesh reinforcement 11 in the overlapping layers 8, newly adds in the collar tie beam 5 to be provided with arrangement of reinforcement; M16 pre embedded bolt 4 respectively with the arrangement of reinforcement that newly adds collar tie beam 5, newly add the steel mesh reinforcement 11 of overlapping layers 8 and the chemically-planted steel bar of roof construction post 10 and be connected, and wholely adopt concrete cast (as shown in Figure 1) together.Wherein, add layer steel column 1 and be welded (as shown in Figure 1 and Figure 2) by steel column, suspension column upper padding plate 2, stiffening rib 6, steel column is H shaped steel or i iron or rigid steel pile, and the thickness that newly adds overlapping layers 8 is 40mm, and the specification of described steel mesh reinforcement 11 is 6200~300 * 200~300mm, concrete strength grade is not less than C30, newly-increased collar tie beam 5 is of a size of 240mm * 240mm, the length that M16 pre embedded bolt 4 deeply newly adds collar tie beam 5 is not less than 200mm, the appearance and size of suspension column upper padding plate 2 and suspension column lower bolster 3 is 240mm * 240mm, and thickness is 10mm.The used reinforcing bar 7 of described chemically-planted steel bar adopts HRB335 level hot rolled ribbed steel bar, and the degree of depth that reinforcing bar 7 is implanted roof construction post 10 is not less than 200mm, and reinforcing bar 7 bore diameters are not less than 25mm.The lightweight steel construction top is provided with the light section steel structure pitched roof
The above-mentioned overlapping layers 8 that newly adds is the globalities that add the floor layer in order to strengthen, original structure roof panel 9 after existing masonry structure is removed former roof water-proof is beaten the plain ash of one deck cement, spread steel mesh reinforcement 11, add the collar tie beam 5 whole floor of concreting formation together then and newly.
Above-mentioned employing lightweight steel construction directly adds the existing masonry structure job practices of layer technology, and concrete steps are as follows:
Step 1: remove parapet on the existing masonry structure, cornice and roof water-proof;
Step 2: 10 places carry out chemically-planted steel bar at existing masonry structure roof construction post:
The used reinforcing bar of chemically-planted steel bar should adopt HRB335 level hot rolled ribbed steel bar, and the degree of depth that reinforcing bar 7 is implanted constructional column 10 should not be less than 200mm.Reinforcing bar 7 bore diameters should not be less than 25mm, and reinforcing bar 7 should implant in the bulk, should not implant in the mortar joint.For steel bar stress, bulk should not be lower than MU10.Should blow off the powder ash earlier in the work progress, pour into structure glue, and then implant reinforcing bar 7.
Step 3: the arrangement of reinforcement that newly adds collar tie beam 5, steel mesh reinforcement 11 arrangements of reinforcement that newly add overlapping layers 8, and will newly add the arrangement of reinforcement of collar tie beam 5, the steel mesh reinforcement 11 that newly adds overlapping layers 8 is connected with implantation reinforcing bar 7 in the roof construction post 10 respectively, adds newly wherein that steel mesh reinforcement 11 specifications are in the overlapping layers 8 6200~300 * 200~300;
Step 4: with suspension column lower bolster 3 and M16 pre embedded bolt 4 with the arrangement of reinforcement of Xin Jia collar tie beam 5, newly add the steel mesh reinforcement 11 of overlapping layers 8, the reinforcing bar 7 that roof construction post 10 is implanted is connected;
Step 5: with the reinforcing bar 7 implanted in the roof construction post 10, newly add the arrangement of reinforcement of collar tie beam 5, the steel mesh reinforcement 11 and the M16 pre embedded bolt 4 that newly add overlapping layers 8 carry out the concrete monobloc cast;
Step 6: when concrete strength reaches 70% when above, the installing hole correspondence that will add 1 suspension column upper padding plate 2 of layer steel column is installed on the M16 pre embedded bolt 4 of suspension column lower bolster 3, undertaken fasteningly by nut 12, nut 12 and M16 pre embedded bolt 4 are welded after fastening; Wherein the appearance and size of suspension column upper padding plate 2 and suspension column lower bolster 3 is 240mm * 240mm, and thickness is 10mm;
Step 7: carry out the installation on top lightweight steel construction and roof
More than be an exemplary embodiment of the present utility model, concrete enforcement of the present utility model is not limited thereto.

Claims (6)

1. existing masonry structure that adopts lightweight steel construction directly to add layer technology, it is characterized in that: removing parapet, cornice and the existing masonry structure top of roof water-proof is provided with lightweight steel construction, wherein, existing masonry structure roof construction post (10) is provided with and newly adds collar tie beam (5), the original structure roof panel (9) of having removed existing masonry structure roof water-proof is provided with and newly adds overlapping layers (8), simultaneously, newly add collar tie beam (5) be provided with constitute described lightweight steel construction add a layer steel column (1), a described layer steel column (1) bottom that adds is by suspension column lower bolster (3), M16 pre embedded bolt (4) is located to be connected at constructional column (10) with existing masonry structure; Described existing masonry structure roof construction post (10) is provided with chemically-planted steel bar, and described newly adding is provided with steel mesh reinforcement (11) in the overlapping layers (8), and described newly adding in the collar tie beam (5) is provided with arrangement of reinforcement; Described M16 pre embedded bolt (4) respectively with the arrangement of reinforcement that newly adds collar tie beam (5), newly add the steel mesh reinforcement (11) of overlapping layers (8) and the chemically-planted steel bar of roof construction post (10) and be connected, and wholely adopt the concrete cast together.
2. a kind of existing masonry structure that adopts lightweight steel construction directly to add layer technology according to claim 1, it is characterized in that: the described layer steel column (1) that add is welded by steel column, suspension column upper padding plate (2), stiffening rib (6).
3. a kind of existing masonry structure that adopts lightweight steel construction directly to add layer technology according to claim 2, it is characterized in that: described steel column is H shaped steel or i iron or rigid steel pile.
4. a kind of existing masonry structure that adopts lightweight steel construction directly to add layer technology according to claim 3, it is characterized in that: the described thickness that newly adds overlapping layers (8) is 40mm, and the specification of described steel mesh reinforcement (11) is 6 (200~300) * (200~300) mm, described newly-increased collar tie beam (5) is of a size of 240mm * 240mm, the length that described M16 pre embedded bolt (4) deeply newly adds collar tie beam (5) is not less than 200mm, the appearance and size of described suspension column upper padding plate (2) and suspension column lower bolster (3) is 240mm * 240mm, and thickness is 10mm.
5. a kind of existing masonry structure that adopts lightweight steel construction directly to add layer technology according to claim 1, it is characterized in that: the used reinforcing bar of described chemically-planted steel bar (7) adopts HRB335 level hot rolled ribbed steel bar, the degree of depth that reinforcing bar (7) is implanted roof construction post (10) is not less than 200mm, and reinforcing bar (7) bore diameter is not less than 25mm.
6. a kind of existing masonry structure that adopts lightweight steel construction directly to add layer technology according to claim 1, it is characterized in that: described lightweight steel construction top is provided with the light section steel structure pitched roof.
CN 201320189912 2013-04-10 2013-04-10 Existing masonry structure adopting technology of directly increasing layers by lightweight steel construction Expired - Fee Related CN203201172U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103225422A (en) * 2013-04-10 2013-07-31 北京筑福国际工程技术有限责任公司 Existing masonry structure using light steel structure direct storey-adding technology and construction method of existing masonry structure
CN103924793A (en) * 2014-05-06 2014-07-16 北京筑福建筑事务有限责任公司 Old house reinforcing structure and reinforcing method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103225422A (en) * 2013-04-10 2013-07-31 北京筑福国际工程技术有限责任公司 Existing masonry structure using light steel structure direct storey-adding technology and construction method of existing masonry structure
CN103225422B (en) * 2013-04-10 2015-07-01 北京筑福国际工程技术有限责任公司 Existing masonry structure using light steel structure direct storey-adding technology and construction method of existing masonry structure
CN103924793A (en) * 2014-05-06 2014-07-16 北京筑福建筑事务有限责任公司 Old house reinforcing structure and reinforcing method thereof

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Granted publication date: 20130918

Termination date: 20170410