CN103225423B - A kind of existing building encloses shell type adding storey structure and construction method thereof - Google Patents
A kind of existing building encloses shell type adding storey structure and construction method thereof Download PDFInfo
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- 238000010276 construction Methods 0.000 title claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 156
- 239000010959 steel Substances 0.000 claims abstract description 156
- 230000000694 effects Effects 0.000 claims abstract description 6
- 230000002787 reinforcement Effects 0.000 claims abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 239000004567 concrete Substances 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000011150 reinforced concrete Substances 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 7
- 241000168254 Siro Species 0.000 abstract description 2
- 238000009987 spinning Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000007943 implant Substances 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
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Abstract
The present invention relates to a kind of existing building and enclose shell type adding storey structure and construction method thereof, belong to field of structural seismic reinforcement.The present invention increases jacket-type steel work in existing building surrounding, and this steel work joins end to end in the plane around existing building, effectively can increase the horizontal earthquake load of total.The present invention enclose nested structure newly add bearing type steel column exceed the top of existing building time, load-bearing crossbeam is set, this load-bearing crossbeam with newly add bearing type steel column and be connected.The all loads newly adding load-bearing crossbeam top are passed to and newly adds bearing type steel column until pass to basis.Enclose that shell type adds that layer technology can make newly, take between old structure the hinged or mode such as just to have connect to carry out compact siro spinning technology, play the constitutionally stable effect that strengthens, total stress system is reasonable, can ensure the safe and reliable of total.Enclose shell type storey-adding reconstruction by existing building, the problem of current people's house difficulty can be solved, also save the land resources that country is a large amount of simultaneously.
Description
Technical field
The present invention relates to a kind of existing building and enclose shell type adding storey structure and construction method thereof, belong to technical field of anti-seismic reinforcement.
Background technology
China is a country had a large population and a few land, and this is restricted with regard to making the development in city.At present, due to the restriction of national economic situation, also cannot remove large batch of old room and again build new house, solve the situation of people's house difficulty.Along with the development of China population growth and economic construction, this phenomenon is more and more obvious.Thus take on original building, increase the demand that the number of plies (namely existing building adds layer) meets people's house, alleviate a kind of practical method of current acute housing shortage, also save the land resources of country simultaneously, can be described as the good thing of killing two birds with one stone.The storey-adding reconstruction of existing building, particularly house to add that layer grows tall will be development trend in recent years.Wherein, enclose shell type to add layer technology and which floor can increase to tens layers according to engineering practice and needs, even more, but enclosing shell type, to add in layer new, old structure collaborative work be enclose one of shell type key technology adding layer, can connection meet mechanical model and reliably working, has vital effect to the reasonable mechanical of total and trouble free service.
Summary of the invention
Based on the problems referred to above, the present invention proposes a kind of existing building and enclose shell type adding storey structure and construction method thereof, adding that layer technology can make newly by enclosing shell type, taking between old structure the hinged or mode such as just to have connect to carry out compact siro spinning technology, play and strengthen constitutionally stable effect, total stress system is reasonable, can ensure the safe and reliable of total.Enclose shell type storey-adding reconstruction by existing building of the present invention, the problem of current people's house difficulty can be solved, also save the land resources that country is a large amount of simultaneously.
Technical scheme of the present invention is as follows:
A kind of existing building encloses shell type adding storey structure, described existing building surrounding is provided with encloses nested structure, the described nested structure that encloses all adopts steel work, the described nested structure that encloses joins end to end in the plane around the exterior wall of existing building, described in enclose nested structure and comprise several and newly add bearing type steel column, newly add and enclose cover longitudinal type girder steel, newly add and enclose cover lateral type girder steel, outer steel column, load-bearing crossbeam and 4 interior columns of angles and 4 exterior angle steel columns; Described outer steel column and newly add to be connected with newly to add to enclose between bearing type steel column and between outer steel column and the interior column of angles and overlap lateral type girder steel, is connected with between described outer steel column and between outer steel column and exterior angle steel column newly to add to enclose and overlaps longitudinal type girder steel; Described newly add bearing type steel column, newly add enclose cover longitudinal type girder steel and the interior column of angles connect and compose described in enclose the inner circumferential of nested structure, described outer steel column, exterior angle steel column and all the other newly add enclose cover longitudinal type girder steel connect and compose described in enclose the periphery of nested structure; The position that bearing type steel column exceedes existing building top is newly added at the described nested structure that encloses, be provided with load-bearing crossbeam, described load-bearing crossbeam increases and has at least one deck steel work floor, described load-bearing crossbeam with newly add bearing type steel column and be connected, thus formation encloses shell type adding storey structure, makes all loads newly adding load-bearing crossbeam top pass to and newly adds bearing type steel column until pass to basis; According on load-bearing crossbeam increase the difference of number of floor levels, described newly adding, adopts hinged between bearing type steel column and existing building exterior wall or has just connect, and effectively can increase the horizontal earthquake load of total.
Described existing building encloses shell type adding storey structure, for load-bearing crossbeam increases the number of plies more enclose shell type adding storey structure, the described bearing type steel column that newly adds is undertaken hinged with existing building exterior wall and corresponding interior cross wall by bar planting, pre-buried articulated elements.The number of floor levels that described load-bearing crossbeam increases is for being more than or equal to 3 layers.
Described existing building encloses shell type adding storey structure, for load-bearing crossbeam increases the number of plies less enclose shell type adding storey structure, newly add bearing type steel column to be connected by bolt bar planting with existing building exterior wall and corresponding interior cross wall, the bolt implanting cross wall in existing building with newly add bearing type steel column and just connect by fastening nuts.The number of floor levels that described load-bearing crossbeam increases is 1-2 layer.
Described existing building encloses shell type adding storey structure, and described existing building is masonry structure or reinforced concrete structure.
Described existing building encloses shell type adding storey structure, and the roof of the steel work floor that described load-bearing crossbeam increases adopts pitched roof.
Described existing building encloses shell type adding storey structure, and the described bearing type steel column that newly adds is i iron or combining structure.
Described existing building encloses shell type adding storey structure, described in enclose on shell type adding storey structure and be also provided with steel diagonal brace, overlap longitudinal type girder steel oblique connection play reinforcement effect in order to newly to add to enclose with upper and lower layer.
Above-mentioned existing building encloses the construction method of shell type adding storey structure, and concrete steps are as follows:
Step 1: according to design drawing, the position well in advance preparing to install steel column in outside four orientation of existing building newly adds the steel-column foundation of bearing type steel column, outer steel column, the interior column of angles and exterior angle steel column;
Step 2: install in outside four orientation of existing building and newly add bearing type steel column, outer steel column, the interior column of angles, exterior angle steel column and Xin Jia and enclose cover longitudinal type girder steel, newly add and enclose cover lateral type girder steel and steel diagonal brace carries out connecting and composing enclosing nested structure, and leave a door unlocked in advance, window hole;
Step 3: be connected newly adding bearing type steel column with existing building exterior wall:
For increase the number of plies more enclose shell type adding storey structure: by newly add bearing type steel column and existing building exterior wall and corresponding in cross wall undertaken hinged by bar planting, pre-buried articulated elements;
For increase the number of plies less enclose shell type adding storey structure: by newly add bearing type steel column and existing building exterior wall and corresponding in cross wall connected by bolt bar planting, implant the bolt of the outer cross wall within the walls of existing building and newly add bearing type steel column and just connect by fastening nuts;
Step 4: the top portion newly adding bearing type steel column and exceed existing building, arranges load-bearing crossbeam, by load-bearing crossbeam with newly add bearing type steel column and be connected, make newly to add load-bearing crossbeam and certain gap is left at existing building top;
Step 5: on load-bearing crossbeam top, continues assembling steel work floor until roof according to design drawing.
Beneficial effect:
Adopt structure of the present invention, when coming earthquake, existing building and Xin Jia enclose the invasion and attack that nested structure resists seismic wave jointly, even if existing building produces larger crack, even local damage, come off, newly add enclose shell type adding storey structure due to the ductility of steel work good, local may deform, but whole shell type adding storey structure integrality of enclosing can not be destroyed, and can ensure that total can not be caved in, can avoid causing huge casualties during macroseism and avoiding property loss.Enclose shell type storey-adding reconstruction by existing building, the problem of current people's house difficulty can be solved, also save the land resources that country is a large amount of simultaneously, there is significant economic benefit and social benefit.
Accompanying drawing explanation
Fig. 1 is that existing building (masonry structure) encloses shell type and adds layer plane schematic diagram;
Fig. 2 is the A-A sectional view (masonry structure encloses shell type and adds a layer elevation) of Fig. 1;
Fig. 3 carries out connection diagram for newly adding bearing type steel column by articulated elements and body of wall;
Fig. 4 carries out connection diagram for newly adding bearing type steel column by firm fitting and body of wall;
In figure, 1: newly add bearing type steel column; 2: newly add and enclose cover longitudinal type girder steel; 3: existing building exterior wall; 4: load-bearing crossbeam; 5: articulated elements; 6: roof; 7, bolt; 8: nut; 9: interior cross wall; 10: newly add and enclose cover lateral type girder steel; 11: floor; 12: the interior column of angles; ; 13: exterior angle steel column; ; 14: outer steel column.
Detailed description of the invention
A kind of existing building of the present invention encloses shell type adding storey structure, detailed description of the invention as Figure 1-4, existing building surrounding is provided with encloses nested structure, enclose nested structure and all adopt steel work, the described nested structure that encloses joins end to end in the plane around the exterior wall 3 of existing building, encloses nested structure and comprises several and newly add bearing type steel column 1, newly add and enclose cover longitudinal type girder steel 2, newly add and enclose cover lateral type girder steel 10, outer steel column 14, load-bearing crossbeam 4 and 4 interior columns of angles 12 and 4 exterior angle steel columns 13; Outer steel column 14 and newly add to be connected with newly to add to enclose between bearing type steel column 1 and between outer steel column 14 and the interior column of angles 12 and overlap lateral type girder steel 10, is connected with between outer steel column 14 and between outer steel column 14 and exterior angle steel column 13 newly to add to enclose and overlaps longitudinal type girder steel 2; Newly add bearing type steel column 1, newly add enclose cover longitudinal type girder steel 2 and the interior column of angles 12 connect and compose described in enclose the inner circumferential of nested structure, outer steel column 14, exterior angle steel column 13 and all the other newly add enclose cover longitudinal type girder steel 2 connect and compose described in enclose the periphery of nested structure; Newly add the position that bearing type steel column 1 exceedes existing building top enclosing nested structure, be provided with load-bearing crossbeam 4, load-bearing crossbeam 4 increases at least one deck steel work floor, load-bearing crossbeam 4 with newly add bearing type steel column 1 and be connected, thus formation encloses shell type adding storey structure; According on load-bearing crossbeam 4 increase the difference of number of floor levels, newly add and adopt hinged between bearing type steel column 1 and existing building exterior wall 3 or just connect.The existing building of the present embodiment adopts masonry structure, as shown in Figure 1.The roof 6 of the steel work floor that its load-bearing crossbeam 4 increases adopts pitched roof, as shown in Figure 2, it newly adds bearing type steel column 1 for i iron or combining structure, encloses on shell type adding storey structure and is also provided with steel diagonal brace, overlaps longitudinal type girder steel 2 oblique connection play reinforcement effect in order to newly to add to enclose with upper and lower layer.
For load-bearing crossbeam 4 increases the number of plies more enclose shell type adding storey structure, as being more than or equal to 3 layers, newly adding bearing type steel column 1 and being undertaken hinged with existing building exterior wall 3 and corresponding interior cross wall 9 by bar planting, pre-buried articulated elements 5, as shown in Figure 3.
For load-bearing crossbeam 4 increases the number of plies less enclose shell type adding storey structure, as 1-2 layer, newly add bearing type steel column 1 to be connected by bolt 7 bar planting with existing building exterior wall 3 and corresponding interior cross wall 9, the bolt 7 implanting cross wall 9 in existing building with newly add bearing type steel column 1 and just connect by nut 8 is fastening, as shown in Figure 4.
Above-mentioned existing building encloses the concrete construction method of shell type adding storey structure, and concrete steps are as follows:
Step 1: according to design drawing, the position well in advance preparing to install steel column in outside four orientation of existing building newly adds the steel-column foundation of bearing type steel column 1, outer steel column 14, the interior column of angles 12 and exterior angle steel column 13;
Step 2: install in outside four orientation of existing building and newly add bearing type steel column 1, outer steel column 14, the interior column of angles 12, exterior angle steel column 13 and Xin Jia and enclose cover longitudinal type girder steel 2, newly add and enclose cover lateral type girder steel 10 and steel diagonal brace carries out connecting and composing enclosing nested structure, and leave a door unlocked in advance, window hole;
Step 3: be connected newly adding bearing type steel column 1 with existing building exterior wall:
For increase the number of plies more enclose shell type adding storey structure: by newly add bearing type steel column 1 and existing building exterior wall 3 and corresponding in cross wall 9 undertaken hinged by bar planting, pre-buried articulated elements 5;
For increase the number of plies less enclose shell type adding storey structure: by newly add bearing type steel column 1 and existing building exterior wall 3 and corresponding in cross wall 9 connected by bolt 7 bar planting, implant the bolt 7 of the outer cross wall 9 within the walls of existing building and newly add bearing type steel column 1 and just connect by nut 8 is fastening;
Step 4: the top portion newly adding bearing type steel column 1 and exceed existing building, arranges load-bearing crossbeam 4, by load-bearing crossbeam 4 with newly add bearing type steel column 1 and be connected, make newly to add load-bearing crossbeam 4 and leave certain gap with existing building top;
Step 5: on load-bearing crossbeam 4 top, continues assembling steel work floor until roof 6 according to design drawing.
Be more than an exemplary embodiment of the present invention, specific embodiment of the invention is not limited thereto.
Claims (8)
1. an existing building encloses shell type adding storey structure, described existing building surrounding is provided with encloses nested structure, the described nested structure that encloses all adopts steel work, the described nested structure that encloses joins end to end in the plane around the exterior wall (3) of existing building, it is characterized in that: described in enclose nested structure and comprise several and newly add bearing type steel column (1), newly add and enclose cover longitudinal type girder steel (2), newly add and enclose cover lateral type girder steel (10), outer steel column (14), load-bearing crossbeam (4) and 4 interior columns of angles (12) and 4 exterior angle steel columns (13);
Described outer steel column (14) and newly add to be connected with newly to add to enclose between bearing type steel column (1) and between outer steel column (14) and the interior column of angles (12) and overlap lateral type girder steel (10), is connected with between described outer steel column (14) and between outer steel column (14) and exterior angle steel column (13) newly to add to enclose and overlaps longitudinal type girder steel (2);
Described newly add bearing type steel column (1), newly add enclose cover longitudinal type girder steel (2) and the interior column of angles (12) connect and compose described in enclose the inner circumferential of nested structure, described outer steel column (14), exterior angle steel column (13) and all the other newly add enclose cover longitudinal type girder steel (2) connect and compose described in enclose the periphery of nested structure;
The position that bearing type steel column (1) exceedes existing building top is newly added at the described nested structure that encloses, be provided with load-bearing crossbeam (4), the upper increase of described load-bearing crossbeam (4) has at least one deck steel work floor, described load-bearing crossbeam (4) with newly add bearing type steel column (1) and be connected, thus form and enclose shell type adding storey structure;
According on load-bearing crossbeam (4) increase the difference of number of floor levels, when floor be more than or equal to 3 layers stylish add adopt between bearing type steel column (1) and existing building exterior wall (3) hinged, when floor be 1-2 layer stylish add to adopt between bearing type steel column (1) and existing building exterior wall (3) just connect.
2. existing building according to claim 1 encloses shell type adding storey structure, it is characterized in that: more for load-bearing crossbeam (4) the upper increase number of plies, for be more than or equal to 3 layers enclose shell type adding storey structure, the described bearing type steel column (1) that newly adds is undertaken hinged with existing building exterior wall (3) and corresponding interior cross wall (9) by bar planting, pre-buried articulated elements (5).
3. existing building according to claim 1 encloses shell type adding storey structure, it is characterized in that: less for load-bearing crossbeam (4) the upper increase number of plies, shell type adding storey structure is enclosed for 1-2 layer, newly add bearing type steel column (1) to be connected by bolt (7) bar planting with existing building exterior wall (3) and corresponding interior cross wall (9), the bolt (7) implanting cross wall (9) in existing building with newly add bearing type steel column (1) and just connect by nut (8) is fastening.
4. existing building according to claim 1 encloses shell type adding storey structure, it is characterized in that: described existing building is masonry structure or reinforced concrete structure.
5. existing building according to claim 1 encloses shell type adding storey structure, it is characterized in that: the roof (6) of the upper steel work floor increased of described load-bearing crossbeam (4) adopts pitched roof.
6. existing building according to claim 1 encloses shell type adding storey structure, it is characterized in that: the described bearing type steel column (1) that newly adds is for i iron or combining structure.
7. existing building according to claim 1 encloses shell type adding storey structure, it is characterized in that: described in enclose on shell type adding storey structure and be also provided with steel diagonal brace, overlap longitudinal type girder steel (2) oblique connection play reinforcement effect in order to newly to add to enclose with upper and lower layer.
8. enclose the construction method of shell type adding storey structure according to the arbitrary described existing building of claim 1-7, it is characterized in that: concrete steps are as follows:
Step 1: according to design drawing, the position well in advance preparing to install steel column in outside four orientation of existing building newly adds the steel-column foundation of bearing type steel column (1), outer steel column (14), the interior column of angles (12) and exterior angle steel column (13);
Step 2: install in outside four orientation of existing building newly to add bearing type steel column (1), outer steel column (14), the interior column of angles (12), exterior angle steel column (13) and newly add and enclose cover longitudinal type girder steel (2), newly add to enclose and overlap lateral type girder steel (10) and steel diagonal brace carries out connecting and composing enclosing nested structure, and leave a door unlocked in advance, window hole;
Step 3: be connected newly adding bearing type steel column (1) with existing building exterior wall:
For increase the number of plies more, for be more than or equal to 3 layers enclose shell type adding storey structure: undertaken hinged with existing building exterior wall (3) and corresponding interior cross wall (9) by bar planting, pre-buried articulated elements (5) by newly adding bearing type steel column (1);
Less for the increase number of plies, enclose shell type adding storey structure for 1-2 layer: connected newly adding bearing type steel column (1) by bolt (7) bar planting with existing building exterior wall (3) and corresponding interior cross wall (9), the bolt (7) implanting the outer cross wall (9) within the walls of existing building with newly add bearing type steel column (1) and just connect by nut (8) is fastening;
Step 4: the top portion newly adding bearing type steel column (1) and exceed existing building, load-bearing crossbeam (4) is set, by load-bearing crossbeam (4) with newly add bearing type steel column (1) and be connected, make newly to add load-bearing crossbeam (4) and leave certain gap with existing building top;
Step 5: on load-bearing crossbeam (4) top, continues assembling steel work floor until roof (6) according to design drawing.
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| CN110259170A (en) * | 2019-05-27 | 2019-09-20 | 北京华正弘远工程技术有限公司 | A kind of existing building adding storey structure |
| CN110748186A (en) * | 2019-10-25 | 2020-02-04 | 徐子泰 | Energy-saving construction process for old building transformation |
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