CN104264706B - External elevator steel beam foundation structure and construction method thereof - Google Patents
External elevator steel beam foundation structure and construction method thereof Download PDFInfo
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- CN104264706B CN104264706B CN201410564882.4A CN201410564882A CN104264706B CN 104264706 B CN104264706 B CN 104264706B CN 201410564882 A CN201410564882 A CN 201410564882A CN 104264706 B CN104264706 B CN 104264706B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/44—Foundations for machines, engines or ordnance
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Abstract
A kind of external elevator steel beam foundation structure and construction method thereof, its structure comprises frame column, cruciform bracing, floor, steel longeron, cushion block, nut.The present invention relies on engineering self structure rc-frame-beam supporting capacity, and by steel longeron, external elevator load is transmitted on concrete beam, eventually through concrete column, load is reached basis, this construction technology replaces conventional steel bar concrete foundation working process, without the need to abolishing concrete again, girder steel can have enough to meet the need use, reduce rubbish, environmental protection, without the need to conventional steel scaffold, basis is returned back to top simultaneously, both can save the lease expenses of scaffold, do not affect again basement finishing and other professional constructions, save the duration, fast very convenient.
Description
Technical field
The invention belongs to the realm of building construction, particularly a kind of external elevator basis is fallen within structure on floor and construction method thereof.
Background technology
In current highrise building, external application construction elevator basis adopts reinforced concrete foundation as stressed basis usually, concrete foundation falls within structure floor, but the bearing capacity of structure floor is often not enough, at this moment needing by calculating, with steel pipe in the field of load that the concrete foundation of external application construction elevator is corresponding, using steel pipe scaffold or the rim of a bowl frame to increase and supporting, weaken power to be transmitted layer by layer or be directly delivered to sole plate, the process of support returns back to top exactly.
This construction method complex procedures, shortcoming has: the scaffold lease time that, returns back to top is longer, costly required; Two and external application construction elevator is longer for service time, the scaffold place of returning back to top cannot carry out the professional constructions such as finishing; Three, after engineering construction, concrete foundation need be abolished, and abolishes the rubbish of generation, waste disposal fee and abolish expense all higher, and increase construction cost, the duration is longer.
Summary of the invention
The object of this invention is to provide a kind of external elevator steel beam foundation structure and construction method thereof, solving existing external application construction elevator basis adopts reinforced concrete foundation as stressed basis usually, scaffold usage charges that construction exists are higher to use steel pipe scaffold or the rim of a bowl frame to carry out returning back to top, engineering time is long, and the rubbish that the place of returning back to top cannot carry out fitting up and concrete foundation abolishes generation increases construction cost and adds the technical problem of duration.
For achieving the above object, the present invention adopts following technical scheme:
A kind of external elevator steel beam foundation structure, the elevator comprise floor, being connected on floor is basic, the under(-)chassis also comprised on the downside of floor supports, described under(-)chassis supports and comprises frame column and cruciform bracing, the two piece steel longerons of described elevator basis for be arrangeding in parallel, the lateral separation of the beam center line of two steel longerons equals the size of the tower joint of external elevator, and the both ends of steel longeron exceed the outward flange of both sides cruciform bracing respectively;
Between the both ends of steel longeron and floor, the top that is positioned at cruciform bracing is lined with cruciform bracing with wide cushion block, the floor at fulcrum place has the installation through hole of longitudinal both sides of apportion cruciform bracing, every side laterally at least arranges two, the bottom flange of the end of steel longeron has the bolt hole corresponding with installing through hole, and high-strength bolt is successively through installing through hole and bolt hole and using nut to be fixed on floor by steel longeron.
Described steel longeron is H profile steel or i iron.
The both sides of described steel longeron are interval with some stiffeners.
Described cushion block is steel plate, and the height of cushion block is 4 ~ 8cm.
The construction method of this external elevator steel beam foundation structure, step is as follows:
Step one, according to engineering characteristic, select the model of external elevator in conjunction with on-site actual situations;
Step 2, obtain the size of elevator according to the model of external elevator, the edge controlling external elevator distance building after installing is 100mm ~ 200mm, determine the center of external elevator further, and then obtain the installation site line of two steel longerons, ensure that the center of elevator is dropped on the center line of the lateral separation of two steel longerons;
Step 3, model, performance parameter and load-carrying Weight computation according to external elevator go out the total load that external elevator produces, the model of selected steel longeron and length;
Step 4, the sectional dimension checking cruciform bracing and arrangement of reinforcement information;
Step 5, draw the position on elevator basis according to elevator center unwrapping wire, and draw brick wall according to the size unwrapping wire of the steel cage of external elevator build the position line by laying bricks or stones;
Step 6: according to the installation site line of steel longeron, use tower crane by steel longeron hoisted in position, steel longeron falls within above the fulcrum place of cruciform bracing and floor, and adopts cushion block padded between steel longeron and floor;
Step 7: open installation through hole at the both sides floor at fulcrum place, the position, bottom flange of the steel longeron corresponding with installing through hole has the bolt hole of respective numbers;
Step 8: adopt high-strength bolt to be fixed on by steel longeron on the floor of cruciform bracing both sides, high-strength bolt runs through installs through hole and bolt hole, and fixed with nut screwing clamping;
Step 9: build the position line by laying bricks or stones according to brick wall, builds brick wall by laying bricks or stones, ensures that the top mark height of body of wall flushes with the steel top mark of steel longeron is high;
Step 10: be installed on steel longeron by the tower of external elevator joint, and be connected with the spot welding of steel longeron by the base that tower saves, the steel cage edge of external elevator is seated on brick wall, completes the installation of external elevator.
In described step 5, space enclosing structure is arranged on floor, builds brick wall outside steel longeron by laying bricks or stones, the top mark height of body of wall flushes with the steel top mark of steel longeron is high, described brick wall is the steel cage gradient spacing walls of external elevator, itself does not bear loads inside elevator, and it encloses area to ensure that the steel cage of external elevator rides over not run-off the straight after on brick wall and is as the criterion.
In described step 3, when the model of selected steel longeron and length, require that the sectional dimension of steel longeron is not less than 350 × 350 × 12 × 19mm, modulus of section is not less than W simultaneously
x=2280cm
3, the requirement of strength of steel longeron is not less than Q235.
In described step 4, cruciform bracing is concrete beam, and its breadth of section is not less than 300mm, and its depth of section is not less than 600mm, and its bottom surface tension area of reinforcement is not less than A
s=1900mm
2, its end face pressurized area of reinforcement is not less than A
' s=986mm
2, the concrete strength of cruciform bracing is not less than C40, and the clear spacing between adjacent two cruciform bracings is not more than 8m, and the stirrup diameter of cruciform bracing is not less than 10mm, and stirrup spacing is not more than 200mm.
Compared with prior art the present invention has following characteristics and beneficial effect:
The technical solution adopted in the present invention is the supporting capacity of the structure reinforcing bars concrete frame beam relying on engineering self, after elevator installs, by steel longeron, the load of external elevator is transmitted on Vierendeel girder, is transmitted to frame column by Vierendeel girder, eventually through frame column, load is reached basis.
Compared with currently available technology, the present invention does not need steel pipe scaffold to carry out basis to return back to top, significantly decrease the construction works amount on external application construction elevator basis, not only saved scaffold lease expenses, and decrease artificial input.This construction method relies on reinforced concrete structure Vierendeel girder and frame column as primary structure member, and bearing capacity is large, steadiness is strong, and construction safety coefficient is high, and after construction, steel beam foundation system can direct disassembly & recycling recycling, environmental protection; In steel beam foundation use procedure, do not affect the construction of other operations, save the construction period.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention will be further described in detail.
Fig. 1 is the top view that the present invention constructs.
Fig. 2 is the structural representation of A-A section in Fig. 1.
Fig. 3 is the using state figure that the present invention constructs.
Reference numeral: 1-high-strength bolt, 2-cushion block, 3-steel longeron, 4-cruciform bracing, 5-nut, 6-stiffener, 7-frame column, 8-floor, 9-steel cage, 10-tower joint, 11-brick wall, 12-beam center line, 13-external elevator center line.
Detailed description of the invention
Embodiment is see shown in Fig. 1-3, a kind of external elevator steel beam foundation structure, the elevator comprise floor 8, being connected on floor 8 is basic, the under(-)chassis also comprised on the downside of floor 8 supports, described under(-)chassis supports and comprises frame column 7 and cruciform bracing 4, the lateral separation a of the beam center line of basic two steel longerons, 3, the two steel longerons 3 for be arrangeding in parallel of described elevator equals the size of the tower joint 10 of external elevator, and the both ends of steel longeron 3 exceed the outward flange of both sides cruciform bracing 4 respectively;
Between the both ends of steel longeron 3 and floor 8, the top that is positioned at cruciform bracing 4 is lined with cruciform bracing 4 with wide cushion block 2, the floor 8 at fulcrum place has the installation through hole of longitudinal both sides of apportion cruciform bracing 4, every side laterally at least arranges two, the bottom flange of the end of steel longeron 3 has the bolt hole corresponding with installing through hole, and high-strength bolt 1 is successively through installing through hole and bolt hole and using nut 5 to be fixed on floor 8 by steel longeron 3.The aperture of installing through hole and bolt hole in the present embodiment is 22mm.
Described steel longeron 3 is H profile steel or i iron.Be H type shaped steel in the present embodiment.
The both sides of described steel longeron 3 are interval with some stiffeners 6.
Described cushion block 2 is steel plate, and the height of cushion block is 4 ~ 8cm.
In order to ensure that elevator does not topple after installing, also space enclosing structure is provided with in the periphery of longeron, described space enclosing structure is be arranged on floor 8, build brick wall 11 outside steel longeron 3 by laying bricks or stones, the top mark height of body of wall flushes with the steel top mark of steel longeron 3 is high, described brick wall 11 is the steel cage 9 gradient spacing walls of external elevator, itself does not bear loads inside elevator, and it encloses area to ensure that the steel cage 9 of external elevator rides over not run-off the straight after on brick wall 11 and is as the criterion.
The construction method of this external elevator steel beam foundation structure, step is as follows:
Step one, according to engineering characteristic, select the model of external elevator in conjunction with on-site actual situations.
Step 2, obtain the size of elevator according to the model of external elevator, the edge controlling external elevator distance building after installing is 100mm ~ 200mm, determine external elevator center line 13 position further, and then obtain the beam center line 12 i.e. installation site line of two steel longerons, to install, ensure that the center of elevator is dropped on the center line of the lateral separation of two steel longerons, namely ensure that external elevator center line 13 overlaps with center line.
Step 3, model, performance parameter and load-carrying Weight computation according to external elevator go out the total load that external elevator produces, the model of selected steel longeron and length; When the model of selected steel longeron 3 and length, require that the sectional dimension of steel longeron is not less than 350 × 350 × 12 × 19mm, modulus of section is not less than W simultaneously
x=2280cm
3, the requirement of strength of steel longeron is not less than Q235.
Step 4, the sectional dimension checking cruciform bracing 4 and arrangement of reinforcement information, the present embodiment middle frame crossbeam 4 is concrete beam, and its breadth of section is not less than 300mm, and its depth of section is not less than 600mm, and its bottom surface tension area of reinforcement is not less than A
s=1900mm
2, its end face pressurized area of reinforcement is not less than A
' s=986mm
2, the concrete strength of cruciform bracing is not less than C40, and the clear spacing between adjacent two cruciform bracings is not more than 8m, and the stirrup diameter of cruciform bracing is not less than 10mm, and stirrup spacing is not more than 200mm.
Step 5, draw the position on elevator basis according to elevator center unwrapping wire, and draw brick wall 11 according to the size unwrapping wire of the steel cage 9 of external elevator build the position line by laying bricks or stones.
Step 6: according to the installation site line of steel longeron, use tower crane by steel longeron hoisted in position, steel longeron 3 falls within above the fulcrum place of cruciform bracing 4 and floor 8, and between steel longeron 3 and floor 8, adopt cushion block 2 padded.
Step 7: open installation through hole at the both sides floor at fulcrum place, the position, bottom flange of the steel longeron 3 corresponding with installing through hole has the bolt hole of respective numbers.
Step 8: adopt high-strength bolt 1 to be fixed on the floor 8 of cruciform bracing both sides by steel longeron 3, high-strength bolt 1 runs through installs through hole and bolt hole, and tightens fixed with nut 5.
Step 9: build the position line by laying bricks or stones according to brick wall 11, builds brick wall by laying bricks or stones, ensures that the top mark height of body of wall flushes with the steel top mark of steel longeron 3 is high.In the present embodiment, the thickness of brick wall is 240mm.
Step 10: the tower of external elevator joint 10 is installed on steel longeron 3, and the base of tower joint 10 is connected with steel longeron 3 spot welding, steel cage 9 edge of external elevator is seated on brick wall 11, completes the installation of external elevator.
Claims (6)
1. an external elevator steel beam foundation structure, the elevator comprise floor (8), being connected on floor (8) is basic, it is characterized in that: the under(-)chassis also comprising floor (8) downside supports, described under(-)chassis supports and comprises frame column (7) and cruciform bracing (4), the two piece steel longerons (3) of described elevator basis for be arrangeding in parallel, the lateral separation of the beam center line of two steel longerons (3) equals the size of tower joint (10) of external elevator, and the both ends of steel longeron (3) exceed the outward flange of both sides cruciform bracing (4) respectively;
Between the both ends of steel longeron (3) and floor (8), the top that is positioned at cruciform bracing (4) is lined with cruciform bracing (4) with wide cushion block (2), floor (8) has the installation through hole of longitudinal both sides of apportion cruciform bracing (4), every side laterally at least arranges two, the bottom flange of the end of steel longeron (3) has the bolt hole corresponding with installing through hole, and high-strength bolt (1) is successively through installing through hole and bolt hole and using nut (5) to be fixed on floor (8) by steel longeron (3);
Described steel longeron (3) is H profile steel or i iron;
The both sides of described steel longeron (3) are interval with some stiffeners (6).
2. external elevator steel beam foundation structure according to claim 1, it is characterized in that: described cushion block (2) is steel plate, the height of cushion block is 4 ~ 8cm.
3. the construction method of external elevator steel beam foundation structure according to claim 1 and 2, it is characterized in that, step is as follows:
Step one, according to engineering characteristic, select the model of external elevator in conjunction with on-site actual situations;
Step 2, obtain the size of elevator according to the model of external elevator, the edge controlling external elevator distance building after installing is 100mm ~ 200mm, determine the center of external elevator further, and then obtain the installation site line of two steel longerons, ensure that the center of elevator is dropped on the center line of the lateral separation of two steel longerons;
Step 3, model, performance parameter and load-carrying Weight computation according to external elevator go out the total load that external elevator produces, the model of selected steel longeron and length;
Step 4, the sectional dimension checking cruciform bracing (4) and arrangement of reinforcement information;
Step 5, draw the position on elevator basis according to elevator center unwrapping wire, and draw space enclosing structure and brick wall (11) according to the size unwrapping wire of the steel cage (9) of external elevator build the position line by laying bricks or stones;
Step 6: according to the installation site line of steel longeron, use tower crane by steel longeron hoisted in position, steel longeron (3) falls within above the fulcrum place of cruciform bracing (4) and floor (8), and between steel longeron (3) and floor (8), adopt cushion block (2) padded;
Step 7: open installation through hole at the both sides floor at fulcrum place, the position, bottom flange of the steel longeron (3) corresponding with installing through hole has the bolt hole of respective numbers;
Step 8: adopt high-strength bolt (1) to be fixed on the floor (8) of cruciform bracing both sides by steel longeron (3), high-strength bolt (1) runs through installs through hole and bolt hole, and tightens fixed with nut (5);
Step 9: build the position line by laying bricks or stones according to brick wall (11), builds brick wall by laying bricks or stones, ensures that the top mark height of body of wall flushes with the back absolute altitude of steel longeron (3);
Step 10: the tower of external elevator is saved (10) and be installed on steel longeron (3), and the base of tower joint (10) is connected with steel longeron (3) spot welding, steel cage (9) edge of external elevator is seated on brick wall (11), completes the installation of external elevator.
4. the construction method of external elevator steel beam foundation structure according to claim 3, it is characterized in that: in described step 5, space enclosing structure be arranged on floor (8), build by laying bricks or stones steel longeron (3) outside brick wall (11), the top mark height of body of wall flushes with the steel top mark of steel longeron (3) is high, steel cage (9) the gradient spacing walls that described brick wall (11) is external elevator, itself does not bear loads inside elevator, and it encloses area to ensure that the steel cage (9) of external elevator rides over not run-off the straight after on brick wall (11) and is as the criterion.
5. the construction method of external elevator steel beam foundation structure according to claim 3, it is characterized in that: in described step 3, when the model of selected steel longeron (3) and length, require that the sectional dimension of steel longeron is not less than 350 × 350 × 12 × 19mm, modulus of section is not less than W simultaneously
x=2280cm
3, the requirement of strength of steel longeron is not less than Q235.
6. the construction method of external elevator steel beam foundation structure according to claim 3, it is characterized in that: in described step 4, cruciform bracing (4) is concrete beam, and its breadth of section is not less than 300mm, its depth of section is not less than 600mm, and its bottom surface tension area of reinforcement is not less than A
s=1900mm
2, its end face pressurized area of reinforcement is not less than A
' s=986mm
2, the concrete strength of cruciform bracing is not less than C40, and the clear spacing between adjacent two cruciform bracings is not more than 8m, and the stirrup diameter of cruciform bracing is not less than 10mm, and stirrup spacing is not more than 200mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410564882.4A CN104264706B (en) | 2014-10-22 | 2014-10-22 | External elevator steel beam foundation structure and construction method thereof |
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|---|---|---|---|
| CN201410564882.4A CN104264706B (en) | 2014-10-22 | 2014-10-22 | External elevator steel beam foundation structure and construction method thereof |
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| CN104264706B true CN104264706B (en) | 2016-01-20 |
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| CN106703073B (en) * | 2016-12-30 | 2019-07-30 | 中国建筑第八工程局有限公司 | Super High building hoist exempts from return back to top steel beam foundation and its construction method |
| CN108951684B (en) * | 2018-08-23 | 2020-07-03 | 杭州江润科技有限公司 | Construction method of turnover type steel reinforced concrete construction elevator foundation |
| CN111074929A (en) * | 2019-12-25 | 2020-04-28 | 上海建工七建集团有限公司 | Assembly type construction elevator foundation and construction method |
| CN111827343B (en) * | 2020-07-28 | 2021-11-23 | 河北冀科工程项目管理有限公司 | Construction method for deepening four-wall support of existing building elevator foundation |
| CN112227410B (en) * | 2020-11-03 | 2022-11-11 | 北京国际建设集团有限公司 | Construction method of special-shaped tower crane foundation |
| CN113833308B (en) * | 2021-10-18 | 2023-03-14 | 中建八局第一建设有限公司 | Garage back-jacking construction method and back-jacking structure |
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| JPH0827813A (en) * | 1994-07-13 | 1996-01-30 | Mitsubishi Heavy Ind Ltd | Installation foundation holder for machine of every kind |
| CN102162258A (en) * | 2011-02-28 | 2011-08-24 | 温州建设集团有限公司 | Concrete-filled steel tubular high-pile tower footing structure of tower crane and construction method thereof |
| CN202808127U (en) * | 2012-09-14 | 2013-03-20 | 中建一局集团第五建筑有限公司 | External construction elevator without platform frame |
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