CN108678416B - Assembled underground storey-adding vibration-isolating structure and storey-adding vibration-isolating construction process - Google Patents
Assembled underground storey-adding vibration-isolating structure and storey-adding vibration-isolating construction process Download PDFInfo
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- CN108678416B CN108678416B CN201810723223.9A CN201810723223A CN108678416B CN 108678416 B CN108678416 B CN 108678416B CN 201810723223 A CN201810723223 A CN 201810723223A CN 108678416 B CN108678416 B CN 108678416B
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- 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
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
Abstract
The invention discloses an assembled underground storey-adding shock insulation structure, which is characterized in that: including building bottom post, building bottom post lower extreme is connected with the sleeve, it is connected with the shock insulation module to go up the sleeve lower extreme, the shock insulation module lower extreme is connected with the layer-increasing prefab, the layer-increasing prefab includes prefabricated layer-increasing post and cup joints at layer-increasing post upper end and the lower sleeve of being connected with the shock insulation module, the shock insulation module includes with last telescopic connection's last mounting panel, with lower telescopic connection's lower mounting panel and connects the shock insulation pad between last mounting panel and lower mounting panel. According to the invention, the vibration isolation module and the storey-adding prefabricated member are arranged on the original building bottom layer column, and the vibration isolation module and the storey-adding prefabricated member are prefabricated in a factory by measuring the size of the building bottom layer column, so that compared with the construction and the construction on a construction site, the mode not only effectively reduces the construction difficulty, but also reduces the construction period.
Description
Technical Field
The invention relates to the field of constructional engineering, in particular to an assembled underground storey-adding shock insulation structure and a storey-adding shock insulation construction process.
Background
The building is added with layers or transformed, urban space resources are reasonably developed and utilized, and the building is one of important ways for realizing sustainable development. However, the existing reinforced concrete structure is mostly designed based on the old version of building structure anti-seismic design rule, and due to factors such as insufficient building anti-seismic design knowledge and old anti-seismic design concept, the anti-seismic safety of the building structure is lower, and the anti-seismic requirement of the new version of building structure anti-seismic design rule (GB 50011-2010) cannot be met. Therefore, in the modification of the existing building underground storey addition, in order to make the existing building meet the requirement of earthquake-proof fortification in new period, the whole structure is often required to be earthquake-proof reinforced. However, the existing anti-seismic reinforcing methods of the integral structure, such as a cross section increasing method, a component adding method, a steel bonding reinforcing method, a bar planting anchoring method and the like, have the defects of long reinforcing period, increased self weight of the building, damage to the original components and the like. The defect of the anti-seismic reinforcement method greatly increases the difficulty of the underground layer-adding transformation and influences the quality of the underground layer-adding transformation. Firstly, the self weight of the upper structure is obviously increased, and the bearing capacity of the support column additionally arranged on the basement is highly required, so that the construction difficulty and the overall cost are greatly increased; secondly, the cast-in-situ reinforced concrete is adopted in the cross section increasing method, so that the early strength is low, and serious safety problems such as house cracking, tilting and the like caused by insufficient structural bearing capacity are easy to occur in the maintenance stage; finally, the existing building storey-adding transformation needs to be carried and arranged for original residents, enterprises and the like, and the earthquake-resistant reinforcement further increases storey-adding reinforcement time and arrangement cost to a great extent. Therefore, how to reduce the reinforcement time, not to increase the dead weight of the upper structure and simplify the reinforcement process becomes the key point of the underground storey-adding vibration isolation reinforcement research and development.
Disclosure of Invention
The invention aims to solve the problems of long construction period and high construction difficulty of the existing building in the storey-adding and shock-insulating construction process, and provides an assembled underground storey-adding and shock-insulating structure and a storey-adding and shock-insulating construction process, which can effectively shorten the construction period and reduce the construction difficulty.
The invention aims at realizing the following technical scheme: an assembled underground adds layer shock insulation structure, its characterized in that: including building bottom post, building bottom post lower extreme is connected with the sleeve, it is connected with the shock insulation module to go up the sleeve lower extreme, the shock insulation module lower extreme is connected with the layer-increasing prefab, the layer-increasing prefab includes prefabricated layer-increasing post and cup joints at layer-increasing post upper end and the lower sleeve of being connected with the shock insulation module, the shock insulation module includes with last telescopic connection's last mounting panel, with lower telescopic connection's lower mounting panel and connects the shock insulation pad between last mounting panel and lower mounting panel.
The upper sleeve arranged at the lower end of the building bottom column plays a role in connection and is used for connecting and installing the shock insulation module arranged at the lower end of the upper sleeve. The vibration isolation module plays a vibration isolation role, so that damage to a building caused by external vibration can be effectively reduced, and the earthquake resistance of the building is improved. The storey-adding prefabricated member is used for prolonging the length of the building bottom layer column, so that the low-level space of the original building is expanded, and the aim of developing the underground space of the original building is fulfilled. The vibration isolation module and the storey-adding prefabricated member are prefabricated in factories, and the manufactured vibration isolation module and storey-adding prefabricated member only need to be assembled on a construction site.
Preferably, a fine sand concrete pouring layer is arranged between the upper sleeve and the building bottom layer column, and a fine sand concrete pouring layer is arranged between the lower sleeve and the storey-adding column. The fine sand concrete filling layer is used for filling gaps between the upper sleeve and the building bottom layer column, gaps between the lower sleeve and the storey adding column, and meanwhile firmness of connection is improved.
Preferably, the upper sleeve is provided with first bolt holes connected with the upper mounting plate, the lower sleeve is provided with second bolt holes connected with the lower mounting plate, the upper mounting plate is provided with third bolt holes which are the same in number as the first bolt holes and are mutually corresponding in position, and the lower mounting plate is provided with fourth bolt holes which are the same in number as the second bolt holes and are mutually corresponding in position.
Preferably, a plurality of first inner connecting holes are formed in the side face of the bottom of the building bottom column, first outer connecting holes which are the same as the first inner connecting holes in number and correspond to each other in position are formed in the upper sleeve, first bolts are connected to the first inner connecting holes and the first outer connecting holes corresponding to the first inner connecting holes, and a first cushion layer for reinforcing connection is arranged between the first bolts and the first inner connecting holes. The first cushion layer is made of rubber materials, the first cushion layer is arranged between the bolt and the first inner connecting hole, and the first cushion layer is expanded to be in close contact with the inner part of the first inner connecting hole under the action of the first bolt, so that the problem that the first cushion layer cannot be tightly meshed with the first bolt and the first inner connecting hole is solved, and the connecting strength of the bolt is increased.
Preferably, a plurality of second inner connecting holes are formed in the side face of the end part of the storey adding column, second outer connecting holes which are the same as the second inner connecting holes in number and correspond to each other in position are formed in the lower sleeve, second bolts are connected to the second inner connecting holes and the second outer connecting holes corresponding to the second inner connecting holes, and a second cushion layer for reinforcing connection is arranged between the second bolts and the second inner connecting holes. The second cushion layer is made of rubber materials, and the second cushion layer is arranged between the bolt and the second inner connecting hole, so that the second cushion layer is expanded to be in close contact with the inside of the second inner connecting hole under the action of the second bolt, the problem that the second cushion layer cannot be tightly meshed with the second bolt and the second inner connecting hole is solved, and the connecting strength of the bolt is increased.
Preferably, the upper sleeve is provided with a plurality of first through holes for pouring concrete, and the lower sleeve is provided with a second through hole for pouring concrete. The first through hole and the second through hole are used for pouring concrete, and simultaneously have the function of the vent hole, and when the concrete is poured, the internal air is discharged, so that the concrete can be uniformly distributed.
A storey-adding and shock-insulating construction process using the assembled underground storey-adding and shock-insulating structure according to any one of claims 1 to 6, comprising the steps of:
1. measuring the size of a building bottom column, and determining the splicing position;
2. manufacturing a prefabricated part: according to the measured data in the step 1, manufacturing a storey adding column, an upper sleeve, a lower sleeve and a shock insulation module which are matched with a building bottom column, and assembling the lower sleeve and the storey adding column to manufacture a storey adding prefabricated member;
3. installing an upper sleeve at the lower end of a building bottom column;
4. installing a shock insulation module;
5. installing a layering prefabricated member;
6. and carrying out fireproof treatment on the exposed surface of the steel sleeve.
In the step 1, the reasonable splicing position is determined by measuring the dimension of the building bottom column in advance, and meanwhile, the dimension reference is provided for the manufacture of prefabricated members by measuring the dimension of the building bottom column. In the step 2, the prefabricated member is manufactured in a factory, and compared with the original mode of construction and manufacture in a construction site, the prefabricated member can provide a good manufacturing environment in the factory, so that the manufacturing difficulty can be effectively reduced, the manufacturing time is saved, and the manufacturing precision is higher. In step 3, through the sleeve of installing in the building bottom, be connected through last sleeve and layer column prefabrication spare, compare original through rejecting building bottom layer post concrete part and chisel out the post top reinforcing bar, adopt welded mode add the column reinforcing bar, then the construction mode of formwork pouring concrete, this kind of connected mode is low in difficulty, and man-hour is short, and destroys for original building bottom layer post little. In step 4, the prefabricated shock insulation module is installed, so that the building has good shock resistance. In the step 5, the storey-adding prefabricated member is prefabricated, and during operation, the storey-adding prefabricated member is only required to be directly assembled to the lower end of the shock insulation module, compared with the original construction mode of removing a concrete part of a building bottom column and chiseling out a column top reinforcing steel bar, the construction mode of adopting a welding mode to add the column reinforcing steel bar and then supporting a mould to pour concrete is adopted, the connecting mode is low in difficulty, short in working time and small in damage to the original building bottom column.
In step 3, first inner connecting holes are drilled on the building bottom layer column, roughening is carried out on the bottom of the building bottom layer column, first outer connecting holes on the upper sleeve are respectively aligned with corresponding first inner connecting holes, first cushion layers are respectively installed in the first inner connecting holes, first bolts are installed, and finally a fine sand concrete pouring layer is poured between the building bottom layer column and the upper sleeve through first through holes formed in the upper sleeve.
Preferably, when the first inner connecting hole is drilled on the building bottom layer column, the steel bar on the building bottom layer column is avoided, the diameter of the first inner connecting hole is 3-5 mm larger than that of the first bolt, and hole cleaning operation is performed after the drilling is finished.
Preferably, in step 4, when the shock insulation module is installed, the upper mounting plate is fixed at the lower end of the upper sleeve through bolts, in step 5, when the storey adding prefabricated member is installed, a temporary support is built, the storey adding prefabricated member is supported, the second bolt holes arranged on the lower sleeve are respectively aligned with the fourth bolt holes arranged on the lower mounting plate, the shock insulation module is fixed through bolt connection, meanwhile, the foundation is poured, the bottom of the storey adding column is fixed on the foundation, and after the foundation is firmly formed, the temporary support is removed.
The beneficial effects of the invention are as follows: according to the invention, the vibration isolation module and the storey-adding prefabricated member are arranged on the original building bottom layer column, and the vibration isolation module and the storey-adding prefabricated member are prefabricated in a factory by measuring the size of the building bottom layer column, so that compared with the construction and the construction on a construction site, the mode not only effectively reduces the construction difficulty, but also reduces the construction period.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention.
Fig. 2 is an enlarged view of the structure of the section I in fig. 1.
Fig. 3 is a sectional view in the direction a in fig. 1.
Fig. 4 is a schematic view of the upper sleeve structure.
Fig. 5 is a schematic view of the lower sleeve structure.
Fig. 6 is an exploded view of a shock insulation module structure.
Fig. 7 is a cross-sectional view of a seismic isolation module.
Fig. 8 is an enlarged view of the portion II in fig. 7.
In the figure: 1. building bottom layer post, 2, upper sleeve, 3, fine sand concrete filling layer, 4, first bolt, 5, first bedding course, 6, upper mounting plate, 7, shock insulation pad, 8, lower mounting plate, 9, lower sleeve, 10, second bolt, 11, second bedding course, 12, layer-increasing post, 13, first outer connecting hole, 14, first through hole, 15, first bolt hole, 16, second bolt hole, 17, second through hole, 18, second outer connecting hole, 19, set screw, 20, third bolt hole, 21, plumbous core, 22, upper sealing plate, 23, lower sealing plate, 24, fourth bolt hole, 25, rubber layer, 26, steel sheet, 27, protective layer.
Detailed Description
The invention is further described below by means of specific embodiments in connection with the accompanying drawings.
As shown in fig. 1 to 8, an assembled underground storey-adding shock insulation structure comprises a building bottom layer column 1. In this embodiment, the building bottom post 1 has a rectangular cross street surface. The lower end of the building bottom post 1 (according to the upper and lower position relation of fig. 1) is connected with an upper sleeve 2 matched with the building bottom post. The upper sleeve 2 is sleeved at the bottom of the building bottom column 1. The upper sleeve 2 is of a cylindrical structure with a rectangular cross section. The upper end of the upper sleeve 2 is open. The side of the upper sleeve 2 is provided with a first outer connecting hole 13. The number of the first connecting holes 13 can be set according to the specific size and stress condition of the building bottom column. In this embodiment, the number of the first external connection holes 13 is eight, and two of the first external connection holes are respectively disposed on each side surface. All the first outer connection holes 13 are arranged on the same horizontal plane. The side of the upper sleeve 2 is also provided with a first through hole 14. In this embodiment, eight first through holes 14 are provided in total. Two first through holes are provided on each side of the upper sleeve 2. The first through hole is located one fifth of the distance from the bottom of the upper sleeve. The first through hole 14 plays a role of grouting and also has a role of vent hole. The bottom edge of the upper sleeve 2 is provided with a horizontally outwardly extending flange. The flange is provided with first bolt holes 15. In this embodiment, eight first bolt holes 15 are provided. The first bolt holes 15 are evenly distributed over the flange.
The side of the bottom of the building bottom column is provided with first inner connecting holes which are the same as the first outer connecting holes 13 on the upper sleeve 2 in number and mutually corresponding in position. All the first inner connecting holes are provided with a first cushion layer 5. The first cushion layer 5 has a cylindrical structure. The first cushion layer 5 is made of rubber material. The first cushion layer 5 simultaneously passes through the first outer connection hole 10 corresponding to the first inner connection hole. The outer surface of the first cushion layer 5 is fully contacted with the inner surface of the first inner connecting hole. All first cushions 5 are connected with first bolts 4 in the middle. A fine sand concrete filling layer 3 is arranged between the upper sleeve 2 and the building bottom layer column.
The lower end of the upper sleeve 2 is connected with a shock insulation module. The shock insulation module comprises a shock insulation cushion 7, an upper mounting plate 6 connected to the upper end of the shock insulation cushion 7 and a lower mounting plate 8 connected to the lower end of the shock insulation cushion. The upper mounting plate 6 and the lower mounting plate 8 are both rectangular plate structures. The upper mounting plate 6 is provided with third bolt holes 20 which are the same in number as the first bolt holes 15 on the upper sleeve 2 and correspond to each other in position. The upper sleeve 2 is connected with the upper mounting plate 6 through a bolt group. The bolts simultaneously pass through the first bolt holes 15 and the third bolt holes 20 corresponding to the first bolt holes 15 to connect the upper mounting plate 6 with the upper sleeve 2. The shock insulation pad 7 has a cylindrical structure. The shock insulation pad 7 includes an upper sealing plate 22 provided at an upper end and a lower sealing plate 23 provided at a lower end. The upper sealing plate 22 and the lower sealing plate 23 are both in a circular plate-shaped structure. The upper sealing plate 22 and the lower sealing plate 23 have the same cross section. Round hole structures are arranged between the upper sealing plate 22 and the lower sealing plate 23. The upper sealing plate 22 is provided with a threaded hole for connecting the upper mounting plate 6. Six first screw holes are arranged in total. The first threaded holes are arranged in an annular arrangement. The lower sealing plate 23 is provided with a second threaded hole for connecting the lower mounting plate 8. The second threaded holes are arranged in a circular shape. The upper sealing plate 22 is arranged in parallel with the lower sealing plate 23. A plurality of steel sheets 26 are arranged between the upper sealing plate and the lower sealing plate. The steel sheet 26 has the same cross section as the upper closure plate 22. The steel sheets 26 are disposed parallel to each other and equidistant from each other. A rubber layer 25 is provided between two adjacent steel sheets 26. A cylindrical lead core 21 is arranged in the middle of the shock insulation pad 7. The side of the shock insulation pad is wrapped with a protective layer 27 made of rubber.
The lower end face of the upper mounting plate 6 is provided with a circular first groove. The section of the first groove is the same as that of the shock insulation pad. The upper end of the shock insulation pad 7 is connected in the first groove. The upper mounting plate 6 is provided with first counter bores which are the same as the first threaded holes on the upper sealing plate 22 in number and corresponding to each other in position. The upper mounting plate 6 is connected with the shock insulation pad 7 through bolts. The bolt passes through the first counter bore and is connected with a first threaded hole corresponding to the first counter bore. The upper surface of the lower mounting plate is provided with a circular second groove. The section of the second groove is the same as the section of the shock insulation pad. The lower end of the shock insulation pad 7 is connected in the second groove. The lower mounting plate 8 is provided with second counter bores which are the same in number and corresponding in position with the second threaded holes on the lower sealing plate 23. The lower mounting plate 8 is connected with the shock insulation pad 7 through bolts. The bolt passes through the second counter bore and is connected with a second threaded hole corresponding to the second counter bore. The lower mounting plate 8 is also provided with a number of fourth bolt holes 24. In this embodiment, eight bolt holes 24 are provided in total. The fourth bolt holes 24 are respectively arranged at the edge positions of the lower mounting plate 8.
And a prefabricated layer-increasing prefabricated member is connected below the shock insulation module. The layering column prefabricated member comprises a layering column 12 and a lower sleeve 9 sleeved at the upper end of the layering column 12. In this embodiment, the cross section of the build-up column 9 is rectangular. The lower end of the storey adding column 9 is connected with a foundation. The lower sleeve 6 is of a rectangular cylindrical structure with an opening at the lower end. The lower sleeve 9 is sleeved at the upper end of the storey adding column 9. The upper end edge of the lower sleeve 6 is provided with a flange extending horizontally outwards. The flange is provided with second bolt holes 16 which are the same as the fourth bolt holes in number and correspond to each other in position. Eight second outer connecting holes 18 are provided on the side of the lower sleeve 6. Each side of the lower sleeve 6 is provided with two second outer connection holes 18, respectively. The second external connection holes 18 are respectively located on the same horizontal plane. Eight second through holes 17 are arranged on the side face of the lower sleeve. Each side of the lower sleeve 6 is provided with two second through holes 17. The second through holes are arranged at a distance from the upper end face of the lower sleeve
The side surface of the upper end of the storey adding column 12 is provided with second inner connecting holes which are the same as the second outer connecting holes in number and correspond to each other in position. All second inner connection holes are connected with a second cushion layer 11. The second cushion layer 11 has a cylindrical structure. The second cushion layer 11 is made of a rubber material. The first pad layer 11 simultaneously passes through the second outer connection hole 12 corresponding to the second inner connection hole. The outer surface of the second cushion layer 11 is in full contact with the inner surface of the second inner connecting hole. The second bolts 10 are connected between all the second cushion layers 11. A fine sand concrete filling layer is arranged between the lower sleeve and the storey-adding column 12.
When the invention is used for carrying out underground storey-adding shock insulation construction reconstruction on the existing building, the construction process comprises the following specific steps:
1. and measuring the size of the building bottom column, and determining the splicing position. And measuring the size of the building bottom layer column, and determining the splicing position of the bottom layer column and the basement storey-adding assembled reinforced concrete column.
2. And manufacturing a prefabricated member. And (3) manufacturing a storey adding column, an upper sleeve, a lower sleeve and a shock insulation module which are matched with the building bottom column according to the measurement data in the step (1), connecting the lower sleeve with the storey adding column through bolts, and pouring a fine sand concrete pouring layer between the lower sleeve and the storey adding column, so that the storey adding column and the lower sleeve are assembled to form a storey adding prefabricated member. The cross-sectional area of the storey-adding column can be set according to the specific condition of the building, and the cross-sectional area of the storey-adding column can be larger or smaller than the cross-sectional area of the building bottom column. Preferably, the cross-sectional area of the added layer post is the same as the cross-sectional area of the building bottom layer post.
3. And installing a sleeve on the building bottom column. And roughening the bottom surface and the bottom side surface of the building bottom column, drilling a first inner connecting hole for connecting an upper sleeve on the building bottom column, sleeving the upper sleeve at the lower end of the building bottom column, aligning the first outer connecting holes on the upper sleeve with corresponding first inner connecting holes respectively, installing a first cushion layer in the first inner connecting holes respectively, installing a first bolt, and finally pouring a fine sand concrete pouring layer between the building bottom column and the upper sleeve through a through hole arranged on the upper sleeve.
And (3) in the roughening operation, the concave-convex surface is chiseled on the concrete surface at the bottom of the column, and meanwhile, the height difference between the concave depth and the protruding height is controlled to be 3-5 mm.
And when the first inner connecting hole is drilled on the building bottom layer column, the building bottom layer column steel bar is avoided. The diameter of the first inner connecting hole is 3-5 mm larger than that of the first bolt, and hole cleaning operation is performed after hole drilling is finished. The cleaning operation method is that the brush is extended to the bottom of the hole to repeatedly retrace, the dust and residue are carried out, and then compressed air is introduced to further blow out the floating dust in the hole. The inner wall of the bolt hole is scrubbed by dipping the absorbent cotton in acetone or alcohol, and water is not required to scrub the inner wall of the hole. And after the hole cleaning is finished, the bolt hole is closed by clean absorbent cotton.
When a fine sand concrete pouring layer is poured between a building bottom column and an upper sleeve, firstly preparing fine sand concrete, wherein mixing water meets the relevant regulations of the current industry standard JGJ 63; the water adding amount is determined according to the requirements of fine sand concrete configuration and is measured according to the weight; the fine sand concrete is stirred fully and uniformly by adopting electric equipment and is suitable for being used after standing for 2 min; after stirring is completed, water is not added again; and each working class should check the initial fluidity of the grouting material mixture for at least 1 time, and the remaining quantity of the strength test pieces should meet the acceptance and construction control requirements. The full-time inspector in the whole grouting operation process is responsible for site supervision and timely forming a construction inspection record; when grouting construction is performed, the ambient temperature meets the requirements of the specification of fine sand concrete; construction is not suitable when the ambient temperature is lower than 5 ℃, and construction is not required when the ambient temperature is lower than 0 ℃; when the ambient temperature is higher than 30 ℃, measures for reducing the temperature of the fine sand concrete mixture should be taken; grouting operation is to adopt a grouting method to inject from a lower grouting hole, and the grouting material mixture is plugged in time after flowing out from other grouting holes and slurry outlets of the component; the fine sand concrete was used up within 30 min after the water addition.
4. Installing a shock insulation module: the shock insulation module is mounted to the lower end of the upper sleeve through bolts. During installation, third bolt holes on the shock insulation module are respectively aligned with the first bolt holes on the upper sleeve, and bolts simultaneously pass through the third bolt holes and the first bolt holes corresponding to the third bolt holes to install the shock insulation module at the lower end of the upper sleeve.
5. And installing the layering prefabricated member below the shock insulation module. During installation, the second bolt holes arranged on the lower sleeve are respectively aligned with the fourth bolt holes arranged on the lower mounting plate, temporary support is built, the prior position of the storey-adding prefabricated member is kept motionless, bolts simultaneously penetrate through the second bolt holes and the fourth bolt holes corresponding to the second bolt holes, the storey-adding prefabricated member is fixed with the vibration isolation module, and meanwhile, a foundation is poured to fix the bottom of the storey-adding column on the foundation. And after the foundation is firmly formed, removing the temporary support.
6. And carrying out fireproof treatment on the exposed surface of the steel sleeve.
The above embodiments are illustrative of the present invention, and not limiting, and any simple modified structure of the present invention falls within the scope of the present invention.
Claims (9)
1. An assembled underground adds layer shock insulation structure, its characterized in that: the building foundation pile comprises a building foundation pile (1), wherein the lower end of the building foundation pile (1) is connected with an upper sleeve (2), the lower end of the upper sleeve (2) is connected with a shock insulation module, the lower end of the shock insulation module is connected with a layer-added prefabricated member inserted into a foundation, the layer-added prefabricated member comprises a prefabricated layer-added pile (12) and a lower sleeve (9) sleeved at the upper end of the layer-added pile (12) and connected with the shock insulation module, the bottom of the layer-added pile (12) is inserted into a foundation layer, and the shock insulation module comprises an upper mounting plate (6) connected with the upper sleeve, a lower mounting plate (8) connected with the lower sleeve and a shock insulation pad (7) connected between the upper mounting plate and the lower mounting plate;
the side surface of the bottom of the building bottom column (1) is provided with a plurality of first inner connecting holes, the upper sleeve (2) is provided with first outer connecting holes (13) which are the same as the first inner connecting holes in number and correspond to each other in position, and the first inner connecting holes and the first outer connecting holes corresponding to the first inner connecting holes are connected with first bolts (4);
a plurality of second inner connecting holes are formed in the side face of the end part of the storey adding column (12), second outer connecting holes (18) which are the same as the second inner connecting holes in number and correspond to each other in position are formed in the lower sleeve (9), and second bolts (10) are connected to the second inner connecting holes and the second outer connecting holes (18) corresponding to the second inner connecting holes;
the upper sleeve (2) is provided with a plurality of first through holes (14) for pouring concrete, and the lower sleeve (9) is provided with a second through hole (17) for pouring concrete.
2. The assembled underground storey-adding vibration isolation structure according to claim 1, wherein a fine sand concrete pouring layer is arranged between the upper sleeve (2) and the building bottom layer column (1), and a fine sand concrete pouring layer is arranged between the lower sleeve (9) and the storey-adding column (12).
3. The assembled underground storey-adding shock insulation structure according to claim 1, wherein the upper sleeve (2) is provided with first bolt holes (15) connected with the upper mounting plate (6), the lower sleeve (9) is provided with second bolt holes (16) connected with the lower mounting plate (8), the upper mounting plate (6) is provided with third bolt holes (20) which are the same in number as the first bolt holes (15) and are mutually corresponding in position, and the lower mounting plate (8) is provided with fourth bolt holes (24) which are the same in number as the second bolt holes (16) and are mutually corresponding in position.
4. A fabricated underground added layer seismic isolation structure according to claim 1, 2 or 3, wherein a first cushion layer (5) for reinforcing connection is provided between the first bolt (4) and the first inner connection hole.
5. A fabricated underground added layer seismic isolation structure according to claim 1, 2 or 3, wherein a second spacer layer (11) for reinforcing the connection is provided between the second bolt (10) and the second inner connection hole.
6. A storey-adding and shock-insulating construction process using the assembled underground storey-adding and shock-insulating structure according to any one of claims 1 to 5, characterized by comprising the following steps:
1. measuring the size of a building bottom column, and determining the splicing position;
2. manufacturing a prefabricated part: according to the measured data in the step 1, a storey adding column (12), an upper sleeve (2), a lower sleeve (9) and a shock insulation module which are matched with a building bottom column are manufactured, and the lower sleeve (9) and the storey adding column (12) are assembled to form a storey adding prefabricated member;
3. the lower end of the building bottom column (1) is provided with an upper sleeve (2);
4. installing a shock insulation module;
5. installing a layering prefabricated member;
6. and carrying out fireproof treatment on the exposed surface of the steel sleeve.
7. The storey-adding vibration isolation construction process according to claim 6, wherein in the step 3, first inner connecting holes are drilled on the building bottom layer column, roughening is carried out on the bottom of the building bottom layer column (1), first outer connecting holes (10) on the upper sleeve (10) are respectively aligned with corresponding first inner connecting holes, first cushion layers (5) are respectively installed in the first inner connecting holes, first bolts (4) are installed, and finally fine sand concrete pouring layers are poured between the building bottom layer column (1) and the upper sleeve (2) through first through holes (14) formed in the upper sleeve (2).
8. The storey-adding vibration isolation construction process according to claim 7, wherein when the first inner connecting hole is drilled on the building bottom layer column (1), steel bars on the building bottom layer column (1) are avoided, the diameter of the first inner connecting hole is 3-5 mm larger than that of the first bolt (4), and hole cleaning operation is performed after the drilling is finished.
9. The process according to claim 6, 7, 8 or the above-mentioned additional layer isolation construction process, wherein in step 4, when installing the isolation module, the upper mounting plate (6) is fixed at the lower end of the upper sleeve (2) through bolts, in step 5, when installing the additional layer prefabricated member, temporary supports are built, the additional layer prefabricated member is supported, the second bolt holes (16) arranged on the lower sleeve (9) are aligned with the fourth bolt holes (24) arranged on the lower mounting plate respectively, the additional layer prefabricated member is fixed through bolting, the foundation is poured, the bottom of the additional layer column (12) is fixed on the foundation, and after the foundation is firmly formed, the temporary supports are removed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810723223.9A CN108678416B (en) | 2018-07-04 | 2018-07-04 | Assembled underground storey-adding vibration-isolating structure and storey-adding vibration-isolating construction process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810723223.9A CN108678416B (en) | 2018-07-04 | 2018-07-04 | Assembled underground storey-adding vibration-isolating structure and storey-adding vibration-isolating construction process |
Publications (2)
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| CN109594832B (en) * | 2018-11-28 | 2021-02-26 | 浙江理工大学 | Interlayer shock insulation structure of prefabricated concrete structure |
| WO2021044679A1 (en) * | 2019-09-04 | 2021-03-11 | 株式会社瀧川寺社建築 | Wood column connection structure and wood column installation structure |
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