CN105064717A - Method for constructing added storey of building in jack-up manner through steel slide ways - Google Patents
Method for constructing added storey of building in jack-up manner through steel slide ways Download PDFInfo
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- CN105064717A CN105064717A CN201510440747.3A CN201510440747A CN105064717A CN 105064717 A CN105064717 A CN 105064717A CN 201510440747 A CN201510440747 A CN 201510440747A CN 105064717 A CN105064717 A CN 105064717A
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Abstract
A method for constructing an added storey of a building in a jack-up manner through steel slide ways comprises the following steps of reinforcing a building original foundation (1); calculating required jack-up displacement of each frame column (2); arranging a steel bracket (4) on the periphery of each frame column (2); mounting a jack (5) below each steel bracket (4); completely sawing off each frame column (2) in a suitable range in which the frame column (2) is distant from a building foundation top surface (3) by using a rope saw and immediately inserting a thin steel plate in a fracture of each frame column (2) which is sawed off by the rope saw; arranging angle iron (6) to form steel slide ways (8); jacking up the sawed off frame columns (2) until the upper portions of the sawed-off frame columns are raised to an assigned height; and filling fine aggregate concrete in space between a portion, which is positioned below the upper portion of each frame column (2), of the corresponding steel slide way (8) and the lower portion of the frame column (2) to form a corresponding perpetual bearing column so as to construct the added storey of the building in the jack-up manner. Construction speed is high, manufacturing cost is low, and influences on a surrounding environment are smaller.
Description
Technical field
The present invention relates to a kind of construction method, relate to a kind of construction method of steel slideway jacking architecture adding-floor in particular, belong to buildings'storey-adding transformation technical field, be specifically applicable in the add-story reconstruction of multi-rise building thing.
Background technology
Along with developing of construction business, in modern society, the increasing layer design concept of building has become the topic of industry personage comparatively common concern.Do not take up an area because adding building layer has, small investment, instant effect, can solve rapidly the advantages such as scarce room problem, be particularly suitable for China's national situation, therefore, China has carried out a large amount of old rooms add-story reconstruction in recent years, achieves good economic benefit and successfully.
Existing more common architecture adding-floor renovation technique is storey-adding reconstruction.But traditional storey-adding reconstruction is all directly newly-built at original structure top layer, not only long construction period, cost are high, and larger to surrounding environment influence; Meanwhile, because the complexity of adding building layer design and construction, also gone out many adding building layer engineering accidents throughout the country, some accident causes great casualties and economic loss.
Summary of the invention
The object of the invention is to high for existing architecture adding-floor renovation technique long construction period, cost, easily occur it being the defects such as accident, a kind of construction method of steel slideway jacking architecture adding-floor is provided.
for achieving the above object, technical solution of the present invention is:a construction method for steel slideway jacking architecture adding-floor, is characterized in that, comprise the following steps:
Step one, first building original base to be reinforced;
Step 2, calculate the displacement that the every root frame column of building needs jacking;
Step 3, on distance building foundation end face suitable height, by the mode of every root frame column being carried out to bar planting Baogang, a steel corbel is being set respectively in every root frame column surrounding;
Step 4, below each steel corbel, install a jack respectively, two jack making every root frame column surrounding relative are one group, then the jack of every root frame column surrounding is divided into A group jack and B group jack;
Step 5, respectively pretightning force being applied to four jack of every root frame column simultaneously, being suitable for the sawed-off frame column of high scope rope saw to cutting off completely at frame column distance building foundation end face, and saw sawed-off frame column incision position at rope and insert steel sheet immediately;
After step 6, frame column block, longitudinally angle steel is set respectively in every root frame column corner, be connected by detachable batten plate between adjacent angle steel, make the angle steel of every root frame column corner form steel slideway, and make frame column truncation surface remain in the constraint of steel slideway;
Step 7, according to on-the-spot synchronic command shake simultaneously every root frame column surrounding four jack, control the displacement of each jack, make the frame column top be truncated along the lifting of steel slideway, after being lifted to specified altitude assignment, unloading A group jack, and cushion block is placed under A group jack, again A group jack is shaken, and to A group jack construction pretightning force, unload B group jack again, and cushion block is placed under B group jack, again B group jack is shaken, and to B group jack construction pretightning force, according to on-the-spot synchronic command shake simultaneously every root frame column surrounding four jack again carry out jacking,
Step 8, repetition step 7, until be lifted to specified altitude assignment by the frame column top be truncated;
Step 9, by the frame column top jacking that is truncated to specified altitude assignment time, pours into pea gravel concreten between the following steel slideway in frame column top and frame column bottom, form permanent load-bearing pillar, thus the jacking completing building increases layer.
Be that 500mm highly saws sawed-off frame column with rope and extremely cuts off completely at frame column distance building foundation end face in described step 5.
Cushion block in described step 7 is prefabricated high-strength concrete cushion block.
Step is below comprised: between the steel slideway of described adjacent two frame columns, cross support is set, to provide lateral rigidity after described step 6.
Step below is also comprised: when the jacking of frame column top is to during close to steel slideway top, spreading is carried out to steel slideway, to ensure frame column truncation surface all the time in the constraint of steel slideway in described claim 1.
compared with prior art, the invention has the beneficial effects as follows:
Architecture adding-floor method in the present invention is after existing building bottom frame post blocks, utilizes the construction method of steel slideway jacking architecture adding-floor, and whole building can be lifted to certain height by it, thus reaches the object increasing layer.This kind construction method speed of application is fast, the cycle is short, cost is low, greatly improves building functions utilization rate, and less to surrounding environment influence, economic and practical, therefore can apply on a large scale.
Accompanying drawing explanation
Fig. 1 is steel corbel scheme of installation in the present invention.
Fig. 2 is steel slideway and cross support scheme of installation in the present invention.
Fig. 3 is steel slideway structure schematic diagram in the present invention.
Fig. 4 is along steel slideway jacking schematic diagram one in the present invention.
Fig. 5 is along steel slideway jacking schematic diagram two in the present invention.
In figure, building original base 1, frame column 2, building foundation end face 3, steel corbel 4, jack 5, angle steel 6, detachable batten plate 7, steel slideway 8, frame column truncation surface 9, cushion block 10, cross support 11, Vierendeel girder 12.
Detailed description of the invention
Illustrate that the present invention is described in further detail with detailed description of the invention below in conjunction with accompanying drawing.
See Fig. 1-5, a kind of construction method of steel slideway jacking architecture adding-floor, comprises the following steps:
Step one, first building original base 1 to be reinforced.Specifically see Fig. 1.
Step 2, calculate the displacement that the every root frame column 2 of building needs jacking.Because all frame columns 2 of building answer synchronization of jacking up, so need to precompute the displacement that every root frame column 2 needs jacking before jacking; Specifically see Fig. 1.
Step 3, on distance building foundation end face 3 suitable height, in every root frame column 2 surrounding, a steel corbel 4 is being set respectively, specifically see Fig. 1 by the mode of every root frame column 2 being carried out to bar planting Baogang.Building foundation end face 3 herein refers to the top plane of building foundation; Suitable height is herein a value range, is often referred to the height facilitating cutting construction bottom frame column 2.
Step 4, below each steel corbel 4, install a jack 5 respectively, two jack 5 making every root frame column 2 surrounding relative are one group, then the jack 5 of every root frame column 2 surrounding is divided into A group jack and B group jack.Meanwhile, the specified top lift of each jack 5 should leave the safety stock of 0.5 times, and usually requires that every root frame column 2 has a jack for subsequent use.Specifically see Fig. 1.
Step 5, respectively pretightning force is applied to four jack 5 of every root frame column 2 simultaneously, be suitable for the sawed-off frame column 2 of high scope rope saw to cutting off completely at frame column 2 apart from building foundation end face 3, and insert steel sheet immediately at sawed-off frame column 2 incision position of rope saw; Specifically see Fig. 1-2.The steel sheet of frame column 2 incision position can prevent the jack 5 after-frame trestle 2 that lost efficacy from down sitting herein; Suitable high scope is herein suitable to facilitate frame column 2 to be cut into, but this height must not higher than the length of the rational height of steel corbel 4 and jack 5.
After step 6, frame column 2 block, every root frame column 2 four jiaos, longitudinally angle steel 6 is set respectively, be connected by detachable batten plate 7 between adjacent angle steel 6, make the angle steel 6 of every root frame column 2 four jiaos form steel slideway 8, and frame column truncation surface 9 is remained in the constraint of steel slideway 8.Steel slideway 8 can retrain the lateral displacement of frame column 2.Specifically see Fig. 2, Fig. 3.
Step 7, to shake according to on-the-spot synchronic command simultaneously every root frame column 2 surrounding four jack 5, control the displacement of each jack 5, make frame column 2 top be truncated along steel slideway 8 lifting; After being lifted to specified altitude assignment, unloading A group jack, and cushion block 10 is placed under A group jack; Again A group jack is shaken, and to A group jack construction pretightning force, then unload B group jack, and cushion block 10 is placed under B group jack.Again shake B group jack, and B group jack constructed pretightning force, according to on-the-spot synchronic command shake simultaneously every root frame column 2 surrounding four jack 5 again carry out jacking.Specifically see Fig. 4, Fig. 5.
Step 8, repetition step 7, until be lifted to specified altitude assignment by frame column 2 top be truncated.Specifically see Fig. 4, Fig. 5.
Step 9, by the frame column 2 top jacking that is truncated to specified altitude assignment time, pours into pea gravel concreten between the following steel slideway 8 in frame column 2 top and frame column 2 bottom, form permanent load-bearing pillar, thus the jacking completing building increases layer.
Further, in described step 5 at frame column 2 apart from building foundation end face 3 for 500mm highly saws sawed-off frame column 2 to cutting off completely with restricting.
Further, the cushion block 10 in described step 7 is prefabricated high-strength concrete cushion block.
Further, after described step 6, comprise step below: between the steel slideway 8 of described adjacent two frame columns 2, cross support 11 is set, to provide lateral rigidity.
Steel slideway 8 can carry out spreading, further, also comprises step below in described claim: when frame column 2 top jacking is to during close to steel slideway 8 top, carry out spreading to steel slideway 8, to ensure frame column truncation surface 9 all the time in the constraint of steel slideway 8.
The present invention utilizes building frame post 2 to have no progeny the method for jacking, whole building is lifted to certain height, thus reaches the object increasing layer, its speed of application is fast, the cycle is short, cost is low, economic and practical, can apply on a large scale.
Above content is in conjunction with concrete preferred embodiment further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, said structure all should be considered as belonging to protection scope of the present invention.
Claims (5)
1. a construction method for steel slideway jacking architecture adding-floor, is characterized in that, comprise the following steps:
Step one, first building original base (1) to be reinforced;
Step 2, calculate the displacement that the every root frame column (2) of building needs jacking;
Step 3, on distance building foundation end face (3) suitable height, by the mode of every root frame column (2) being carried out to bar planting Baogang, a steel corbel (4) is being set respectively in every root frame column (2) surrounding;
Step 4, each steel corbel (4) below respectively install a jack (5), two jack (5) making every root frame column (2) surrounding relative are one group, then the jack (5) of every root frame column (2) surrounding is divided into A group jack and B group jack;
Step 5, respectively pretightning force is applied to four jack (5) of every root frame column (2) simultaneously, the suitable high scope rope sawed-off frame column of saw (2) of frame column (2) distance building foundation end face (3) to cutting off completely, and insert steel sheet immediately at sawed-off frame column (2) incision position of rope saw;
After step 6, frame column (2) block, in every root frame column (2) corner, angle steel (6) is longitudinally set respectively, be connected by detachable batten plate (7) between adjacent angle steel (6), make the angle steel (6) of every root frame column (2) corner form steel slideway (8), and make frame column truncation surface (9) remain in the constraint of steel slideway (8);
Step 7, according to on-the-spot synchronic command shake simultaneously every root frame column (2) surrounding four jack (5), control the displacement of each jack (5), make frame column (2) top be truncated along steel slideway (8) lifting, after being lifted to specified altitude assignment, unloading A group jack, and cushion block (10) is placed under A group jack, again A group jack is shaken, and to A group jack construction pretightning force, unload B group jack again, and cushion block (10) is placed under B group jack, again B group jack is shaken, and to B group jack construction pretightning force, according to on-the-spot synchronic command shake simultaneously every root frame column (2) surrounding four jack (5) again carry out jacking,
Step 8, repetition step 7, until be lifted to specified altitude assignment by the frame column be truncated (2) top;
Step 9, by frame column (2) the top jacking that is truncated to specified altitude assignment time, pea gravel concreten is poured between the following steel slideway (8) in frame column (2) top and frame column (2) bottom, form permanent load-bearing pillar, thus the jacking completing building increases layer.
2. the construction method of a kind of steel slideway jacking architecture adding-floor according to claim 1, is characterized in that: extremely cut off completely for 500mm highly saws sawed-off frame column (2) with rope at frame column (2) distance building foundation end face (3) in described step 5.
3. the construction method of a kind of steel slideway jacking architecture adding-floor according to claim 1, is characterized in that: the cushion block (10) in described step 7 is prefabricated high-strength concrete cushion block.
4. the construction method of a kind of steel slideway jacking architecture adding-floor according to claim 1, it is characterized in that: after described step 6, comprise step below: between the steel slideway (8) of described adjacent two frame columns (2), cross support (11) is set, to provide lateral rigidity.
5. the construction method of a kind of steel slideway jacking architecture adding-floor according to claim 1, it is characterized in that: in described claim 1, also comprise step below: when frame column (2) top jacking is to during close to steel slideway (8) top, spreading is carried out to steel slideway (8), to ensure that frame column truncation surface (9) is all the time in the constraint of steel slideway (8).
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| CN105888281A (en) * | 2016-04-21 | 2016-08-24 | 武大巨成结构股份有限公司 | Method for utilizing jacking storey-adding technique to promote integrated function of community |
| CN106836839A (en) * | 2016-11-29 | 2017-06-13 | 大连久鼎祥瑞特种工程技术研究院有限公司 | Fabric structure jacking increasing layer method |
| CN108590222A (en) * | 2018-05-14 | 2018-09-28 | 武大巨成结构股份有限公司 | A kind of building synchronous jacking device |
| CN108589929A (en) * | 2018-05-14 | 2018-09-28 | 武大巨成结构股份有限公司 | A kind of construction method that old residential area is transformed using synchronous jacking device |
| CN109138484A (en) * | 2018-09-14 | 2019-01-04 | 武大巨成结构股份有限公司 | A kind of jacking increasing layer steel core concrete column and basic connection construction method |
| CN110374349A (en) * | 2019-07-01 | 2019-10-25 | 安徽省建筑科学研究设计院 | A kind of impaired armored concrete cylinder underpins processing unit and its application method |
| CN110821207A (en) * | 2019-12-03 | 2020-02-21 | 上海宝冶集团有限公司 | Integral lifting method for small-sized existing structure |
| WO2020052637A1 (en) * | 2018-09-14 | 2020-03-19 | 武大巨成结构股份有限公司 | Device for alternately jacking added storey of building with high-strength concrete columns and steel slideways and construction method therefor |
| CN114250721A (en) * | 2021-12-30 | 2022-03-29 | 中铁二十二局集团第三工程有限公司 | Construction method for jacking broken engineering columns |
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| CN108590222A (en) * | 2018-05-14 | 2018-09-28 | 武大巨成结构股份有限公司 | A kind of building synchronous jacking device |
| CN108589929A (en) * | 2018-05-14 | 2018-09-28 | 武大巨成结构股份有限公司 | A kind of construction method that old residential area is transformed using synchronous jacking device |
| CN109138484A (en) * | 2018-09-14 | 2019-01-04 | 武大巨成结构股份有限公司 | A kind of jacking increasing layer steel core concrete column and basic connection construction method |
| WO2020052637A1 (en) * | 2018-09-14 | 2020-03-19 | 武大巨成结构股份有限公司 | Device for alternately jacking added storey of building with high-strength concrete columns and steel slideways and construction method therefor |
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| CN110374349A (en) * | 2019-07-01 | 2019-10-25 | 安徽省建筑科学研究设计院 | A kind of impaired armored concrete cylinder underpins processing unit and its application method |
| CN110821207A (en) * | 2019-12-03 | 2020-02-21 | 上海宝冶集团有限公司 | Integral lifting method for small-sized existing structure |
| CN114250721A (en) * | 2021-12-30 | 2022-03-29 | 中铁二十二局集团第三工程有限公司 | Construction method for jacking broken engineering columns |
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