CN108518084A - The additional structure and method that shear wall is removed in frame-shear-wall structure - Google Patents
The additional structure and method that shear wall is removed in frame-shear-wall structure Download PDFInfo
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- CN108518084A CN108518084A CN201810398545.0A CN201810398545A CN108518084A CN 108518084 A CN108518084 A CN 108518084A CN 201810398545 A CN201810398545 A CN 201810398545A CN 108518084 A CN108518084 A CN 108518084A
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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
- E04G23/08—Wrecking of buildings
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Abstract
The additional structure and method removed the invention discloses shear wall in a kind of frame-shear-wall structure, the additional structure includes reinforced beam and several junction steel plates for being set to shear wall and structural slab to be removed and crossing below junction, by shear wall below the bottom surface absolute altitude of reinforced beam be left shear wall member-retaining portion after partial demolition more than the top surface absolute altitude of structural slab, the both ends of reinforced beam anchor into the frame column at shear wall both ends, the bottom of shear wall member-retaining portion and the bottom of reinforced beam are connected by junction steel plate, form composite construction beam, the junction steel plate along reinforced beam longitudinally spaced setting.By the way that armored concrete girder construction is arranged, it can not only play the role of supporting cantilevered plate after shear wall dismounting, it is supported without temperature pier is arranged, but also it can utilize part original structure that shear wall is maintained to remove front and back structure monolithic stability, so that each layer can construct simultaneously, to accelerate construction progress, economize on resources.
Description
Technical field
The present invention is applicable in the additional knot that shear wall is removed in the realm of building construction more particularly to a kind of frame-shear-wall structure
Structure and method.
Background technology
As urban modernization rapidly develops, people's living standards continue to improve, part Old building cannot be satisfied society
It can develop and production and living needs adhere to lasting, Green Development target, occur increasingly under city integrated planning promotion
More underpinning reconstructed projects.In skyscraper, when frame-shear-wall structure is transformed into frame structure, the dismounting of shear wall is as pass
Key works, both difficult, is often also required to no small cost input.
Currently, the arrangement and method for construction that shear wall is removed in frame-shear-wall structure is all first will script and shear wall from top
The structural slab being connected is reinforced with temporary support, then is removed top shear wall and doed for supplement frame structure, because with shear wall phase
Plate even becomes cantilevered plate after shear wall dismounting, if take multilayer while removing the arrangement and method for construction of shear wall, upper layer is interim
Support can not be again by understructure plate stress, therefore shear wall needs are from top to bottom successively removed, and one layer i.e. construction one is often removed
Story frame structure, successively downwards.
Though such construction method is than more conventional, construction cost is larger, and the wasting of resources, the duration is longer, is mainly manifested in：①
Before shear wall is removed, the structural slab lower section being connected with shear wall needs to be reinforced with temporary support.Structural slab after avoiding shear wall from removing
Overhang stress, plate self structure is damaged.Temporary support is set comparatively under structural slab, needs to put into larger cost.
2. because the structural slab being connected with shear wall becomes cantilevered plate after shear wall dismounting, upper layer temporary support can not pass through lower layer again
Cantilevered plate stress, thus shear wall needs from top to bottom successively remove, often remove one layer i.e. construction works as story frame structure, successively to
Under.So repeatedly working procedure replaces operation, is unfavorable for working sources allotment.3. in such arrangement and method for construction, shear wall is merely able to
It successively removes, and frame structure of successively constructing, i.e., need to successively set up structure stand, casting concrete simultaneously conserves, and finally removes branch
Frame continues to construct to lower layer, and the overall flow duration is longer.
Therefore, how one kind is provided construction input when can remove shear wall in larger reduction frame-shear-wall structure, really
The construction quality of reconstruction structure is protected, and with economizing on resources, is sheared in frame-shear-wall structure that accelerate the duration, low-carbon construction
The additional structure that wall is removed is those skilled in the art's technical problem urgently to be resolved hurrily.
Invention content
The additional structure and method removed the purpose of the present invention is to provide shear wall in a kind of frame-shear-wall structure, energy
It is enough effectively to reduce in frame-shear-wall structure construction input when removing shear wall, it is ensured that the construction quality of reconstruction structure, and have
It economizes on resources, accelerates the duration, low-carbon construction social benefit.
To achieve the above object, the present invention adopts the following technical scheme that：
The invention discloses a kind of for removing the additional structure that shear wall is removed in frame-shear-wall structure, is used for frame
Shear wall is removed to be transformed into frame structure in frame shear wall structure, including is set to shear wall and structural slab to be removed and is crossed company
Connect place lower section reinforced beam and several junction steel plates, by shear wall below the bottom surface absolute altitude of reinforced beam with
It is left shear wall member-retaining portion after partial demolition more than the top surface absolute altitude of structural slab, the both ends of the reinforced beam anchor into
In the frame column at shear wall both ends, the bottom surface of the bottom surface and the reinforced beam of the shear wall member-retaining portion is neat
Flat, the bottom of the shear wall member-retaining portion is connect with the bottom of the reinforced beam by the junction steel plate, is formed
Composite construction beam, the junction steel plate along reinforced beam longitudinally spaced setting.
Preferably, in the additional structure that shear wall is removed in above-mentioned frame-shear-wall structure, the armored concrete
The width of beam≤frame column width -+200 millimeters of shear wall's thickness, and width >=400 millimeter of reinforced beam.
Preferably, in the additional structure that shear wall is removed in above-mentioned frame-shear-wall structure, the junction steel plate
Width is 300 millimeters, and length=shear wall's thickness+armored concrete beam width, junction steel plate passes through a diameter of 12~22 millimeters
Chemical bolt is anchored on composite construction beam, the junction steel plate along reinforced beam longitudinal direction setting spacing be 800~
1000 millimeters, chemical bolt 8 is set on every piece of junction steel plate.
Preferably, in the additional structure that shear wall is removed in above-mentioned frame-shear-wall structure, the armored concrete
The design height of beam is calculated according to frame stressing and is determined.
Preferably, in the additional structure that shear wall is removed in above-mentioned frame-shear-wall structure, work as reinforced beam
After the completion of construction and maintenance, shear wall is removed range and is terminated since armored concrete beam bottom to the plate face of understructure plate.
Preferably, in the additional structure that shear wall is removed in above-mentioned frame-shear-wall structure, the list of the shear wall
Side or both sides are equipped with the structural slab.
The invention also discloses the construction methods that shear wall in a kind of frame-shear-wall structure is removed, and are used for shear force of frame
Shear wall is removed to be transformed into frame structure in wall construction, is removed using shear wall in frame-shear-wall structure as described above
Additional structure, this method include
Step 1, in the building of existing frame-shear-wall structure, on shear wall and structural slab with reinforced beam
The position of contact carries out surface dabbing processing；On the frame column of shear wall both sides for connect the position of reinforced beam according to
Corresponding bar planting is arranged in the reinforcing bar distributing position of reinforced beam；The reinforcing bar of assembling reinforcement beams of concrete simultaneously makes reinforced concrete
The reinforcing bar of Tu Liang is fixedly connected with bar planting, pouring reinforcement concrete beam；
Step 2, reinforced beam construction complete, by below the bottom surface absolute altitude of reinforced beam with structural slab
Shear wall more than top surface absolute altitude is removed, and shear wall member-retaining portion is left；
Step 3, after the completion of shear wall is removed, to the bottom surface of shear wall member-retaining portion need to install the position of junction steel plate into
Row polishes flat, and according to the bolt hole on junction steel plate, carries out unwrapping wire positioning in composite construction beam bottom, and mark,
Chemical bolt is planted in the position drilling of label, installs junction steel plate after the completion, and junction steel plate is applied with combination beam concrete contact site
Brush steel bonding glue finally twists solid chemical bolt.
Preferably, in the construction method that shear wall is removed in frame-shear-wall structure as described above, the shear wall
Before dismounting, when shear wall unilateral side is connect with structural slab, increase reinforced beam below junction；When shear wall both sides are equal
When having structural slab connection, increase reinforced beam below the junction of both sides.
Preferably, in the construction method that shear wall is removed in frame-shear-wall structure as described above, the reinforcing bar is mixed
Width≤frame column width -+200 millimeters of shear wall's thickness of solidifying Tu Liang, and width >=400 millimeter of reinforced beam, institute
The height for stating reinforced beam determines by the following method：Shear wall removes the bottom surface of line and reinforced beam same
On horizontal plane, shear wall removes line along shear wall and is divided into shear wall member-retaining portion and shear wall dismounting part, and shear wall is torn open
Except line has a domain of walker, a value is determined in the domain of walker that shear wall removes line, meanwhile, in the width of reinforced beam
After degree determines, whether requirement disclosure satisfy that according to the section Accounting Framework structure stress stability of reinforced beam；If discontented
Foot requires, and the height that adjustment shear wall removes line recalculates review after adjusting armored concrete depth of beam, final to determine
The cross-sectional sizes of reinforced beam.
Preferably, in the construction method that shear wall is removed in frame-shear-wall structure as described above, work as reinforced concrete
After the completion of native beam construction and maintenance, the Demolition Construction of each story shear wall is carried out at the same time.
The additional structure that shear wall is removed in frame-shear-wall structure provided by the invention is transformed in frame-shear-wall structure
At in frame structure construction, the appropriately sized reinforced beam of increase, additional below shear wall and plate to be removed junction
Reinforced beam is combined into construction beam with the reinforcing of shear wall member-retaining portion, after shear wall is removed, it is ensured that improved frame
Structure entirety stability under loading, to save the reinforced beam for newly doing larger cross-section after shear wall is all removed.As it can be seen that passing through
Reinforced beam is set, structure safety can be ensured when shear wall is removed.In addition, additional reinforced beam can be each
Story shear wall is all constructed before removing and is finished, i.e., each layer can construct simultaneously, and can play the role of support construction plate, each layer structure
After the support by reinforced beam, each story shear wall can be removed plate simultaneously, not influence structure entirety stress, without another
The supporting rack of setting structure plate accelerates construction progress to reduce construction cost again outside, economizes on resources, is applied with green low-carbon
Work advantage, and then make it that there is easy to operate, work compared with shear wall Demolition Construction method in traditional frame-shear-wall structure
The high feature of sequence simplification, reliability, implementation.
In conclusion the additional structure of shear wall dismounting and method and general prior art phase in this frame-shear-wall structure
Than：
1, using the construction method of additional bar beams of concrete, with its structure stress, excellent convenient for the technological synthesis of construction
Point, with traditional shear wall remove, Structural-transformconstruction construction method have it is easy to operate, low in resources consumption, process is simplified, reliability,
The high feature of implementation.
2, in the utility model construction technology, increase reinforced beam setting, support is reinforced without being arranged under cantilevered plate, and
In multilayer shear wall demolishing process, each layer each process can be carried out at the same time, between not by construction cross influence, be convenient for working sources
Allotment.
3, in the utility model construction technology, in the composition of composite construction beam, the original shear wall structure of member-retaining portion is reduced to original
Structured destruction connects into stress entirety by constructing steel plate with reinforced beam, preferably protects original structure, have
Good economical synthesis benefit.
Description of the drawings
The additional structure that shear wall is removed in the frame-shear-wall structure of the present invention is provided by embodiment below and attached drawing.
Fig. 1 be one embodiment of the invention frame-shear-wall structure in the facade structures of additional structure removed of shear wall show
It is intended to；
Fig. 2 is that the horizontal layout of junction steel plate in one embodiment of the invention, the reinforcing bar of reinforced beam and bar planting is shown
It is intended to；
The step of Fig. 3 is the construction method that shear wall is removed in the frame-shear-wall structure using one embodiment of the invention one
When structural schematic diagram；
The step of Fig. 4 is the construction method that shear wall is removed in the frame-shear-wall structure using one embodiment of the invention two
When structural schematic diagram；
The step of Fig. 5 is the construction method that shear wall is removed in the frame-shear-wall structure using one embodiment of the invention three
When structural schematic diagram.
In figure, 1, reinforced beam；2, shear wall to be removed；3, shear wall member-retaining portion；4, structural slab；5, shear wall
Remove part；6, frame column；7, junction steel plate；8, chemical bolt；9, the reinforcing bar of reinforced beam；10, bar planting.
Specific implementation mode
The additional structure work removed to shear wall in the frame-shear-wall structure of the present invention is further retouched in detail below
It states.
Please refer to Fig.1 to Fig. 2, the invention discloses it is a kind of for remove shear wall in frame-shear-wall structure remove it is attached
Add structure, for removing the shear wall to be removed 2 in shear wall, that is, original structure in frame-shear-wall structure to be transformed into frame
Structure, if including being set to reinforced beam 1 and involvement that shear wall 2 and structural slab 4 to be removed cross below junction
Connect steel plate, by shear wall below the bottom surface absolute altitude of reinforced beam 1 with partial demolition more than the top surface absolute altitude of structural slab 4
It is left shear wall member-retaining portion 3 afterwards, the both ends of the reinforced beam 1 anchor into the frame column 6 at shear wall both ends, described to cut
The bottom surface of power wall member-retaining portion 3 is flushed with the bottom surface of the reinforced beam 1, the bottom of the shear wall member-retaining portion 3
Portion is connect with the bottom of the reinforced beam 1 by the junction steel plate, and composite construction beam, the lower junction steel plate are formed
Along the longitudinally spaced setting of reinforced beam 1.
The additional structure that shear wall is removed in the frame-shear-wall structure of the present invention, for being sheared in frame-shear-wall structure
Wall 2 needs to remove the position 4 for being transformed into frame structure, is crossed under junction by being set to shear wall and structural slab 4 to be removed
The reinforced beam 1 of side, the both ends of the reinforced beam 1 anchor into the frame column 6 at shear wall both ends, the reinforcing bar added
Beams of concrete 1 can play the role of supporting cantilevered plate 5 and form frame entirety rock-steady structure.1 He of the reinforced beam
3 shear wall member-retaining portion 3 of shear wall member-retaining portion is attached by the junction steel plate 7 being arranged in its bottom.That is, steel
Concrete Beam Reinforced 1 and 3 combination of shear wall member-retaining portion are whole to be connected into 1 bottom of beam and 3 bottom of shear wall setting steel plate 7
Body.Composite construction beam belongs to conjunction old and new concret, to ensure bond quality, reaches cooperative bearing effect, is connected using steel plate 7
Globality can be enhanced and play the stress characteristic of beam.
Preferably, in the additional structure that shear wall is removed in above-mentioned frame-shear-wall structure, the armored concrete
The width of beam 1≤6 width of frame column -+200 millimeters of shear wall's thickness, and width >=400 millimeter of reinforced beam 1.Limitation
The purpose of the section minimum widith of reinforced beam 1 is in order to which the shear wall 3 for ensureing reinforced beam 1 and not removing is constituted
There is enough force stabilities after combination beam.The maximum width in 1 section of restraint beam is to ensure that reinforced beam 1 is anchored in frame
On trestle 6, limitation beam-ends exceeds the overhanging section width of 6 width of frame column, avoids the eccentric force for causing frame column 6 too big, and
Influence frame entirety stability.
Preferably, in the additional structure that shear wall is removed in above-mentioned frame-shear-wall structure, the junction steel plate 7
Width is 300 millimeters, length=1 width of shear wall's thickness+reinforced beam, under the premise of ensuring steel plate stiffness by itself,
The usage amount of steel in junction steel plate 7 is reduced as far as possible.Junction steel plate 7 passes through 8 anchor of a diameter of 12~22 millimeters of chemical bolts
It is fixed on composite construction beam, under the premise of ensureing that steel plate and combination beam there are enough anchor forces, reduce chemical bolt as far as possible
8 diameters.The junction steel plate 7 is 800~1000 millimeters along the longitudinal setting spacing of reinforced beam 1, every piece of connection
Chemical bolt 8 is set on steel plate 7, is anchored in respectively in shear wall member-retaining portion 3 and reinforced beam 1, to ensure group
Under the premise of closing beam entirety bond strength, the usage amount of junction steel plate 7 is reduced as far as possible.
Preferably, in the additional structure that shear wall is removed in above-mentioned frame-shear-wall structure, the armored concrete
The design height of beam 1 is calculated according to frame stressing and is determined.Computing Principle is：Shear wall removes line and 1 lower end of reinforced beam
In same level, and shear wall removes height with certain floating scalability, therefore removes height in shear wall and floating
A value is determined in value, meanwhile, after the cross-sectional width of reinforced beam 1 determines, frame is calculated according to 1 section of reinforced beam
Whether frame force stability disclosure satisfy that requirement.If being unsatisfactory for requiring, adjustment shear wall removes height, that is, adjusts armored concrete
After depth of beam, review is recalculated, the final cross-sectional sizes for determining reinforced beam.
Preferably, after the completion of 1 construction and maintenance of reinforced beam, shear wall removes range from 1 bottom of reinforced beam
Start to the plate face of understructure plate 4 to terminate, i.e., shear wall remove ranging from 1 bottom of reinforced beam to understructure plate 4 it
Between.Multilayer shear wall, which is removed, repeats above range, and can be carried out at the same time, and saves the duration.
Preferably, in the additional structure that shear wall is removed in above-mentioned frame-shear-wall structure, the list of the shear wall 2
Side or both sides are equipped with the structural slab 4.It is cantilevered plate without the structural slab 4 under any holding state after shear wall is removed.Shearing
Before wall 2 is removed, can there be above structure plate 4 in unilateral or both sides.2 unilateral side of shear wall has when being connect with structural slab 4, under junction
Fang Zengjia reinforced beams 1.When there are the connection of structural slab 4 in 2 both sides of shear wall, increase reinforcing bar below the junction of both sides
Beams of concrete 1 ensures that structure on two sides plate 4 has enough bearings after shear wall dismounting, maintains frame system stability.
In conclusion the additional structure that shear wall is removed in frame-shear-wall structure provided by the invention, in shear force of frame
Wall construction is transformed into frame structure construction, increases appropriately sized reinforced concrete below 4 junction of shear wall 2 and plate to be removed
Native beam 1, after shear wall is removed, additional bar beams of concrete 1 is combined into construction beam with the reinforcing of shear wall member-retaining portion 3, it is ensured that
Improved frame structure entirety stability under loading, to save the armored concrete for newly doing larger cross-section after shear wall is all removed
Beam.As it can be seen that by the way that reinforced beam 1 is arranged, structure safety can be ensured when shear wall is removed.In addition, additional reinforcing bar
Beams of concrete 1 can all construction finishes before each story shear wall 2 is removed, i.e., each layer can construct simultaneously, and can play support construction
The effect of plate, after the support by reinforced beam 1, each story shear wall can be removed each layer structural slab simultaneously, not influence
Structure entirety stress, the supporting rack without other setting structure plate again are accelerated construction progress to reduce construction cost, are saved
Resource has the advantages that green low-carbon construction, and then makes itself and shear wall Demolition Construction method in traditional frame-shear-wall structure
Compared to having the characteristics that easy to operate, process is simplified, reliability, implementation are high.
It please refers to Fig.1 to Fig. 5, the invention also discloses the construction parties that shear wall in a kind of frame-shear-wall structure is removed
Method, for removing shear wall in frame-shear-wall structure to be transformed into frame structure, using frame-shear wall as described above
The additional structure that shear wall is removed in structure, this method include
Step 1 asks emphasis refering to Fig. 3, in the building of existing frame-shear-wall structure, on shear wall and structural slab
The position contacted with reinforced beam carries out surface dabbing processing, is preferably contacted with original structure with sharp reinforced beam 1.
For connecting the position of reinforced beam according to 9 distributing position of reinforcing bar of reinforced beam on the frame column of shear wall both sides
Corresponding bar planting 10 is set；The reinforcing bar 9 of assembling reinforcement beams of concrete simultaneously makes the reinforcing bar 9 of reinforced beam be fixed with bar planting 10
Connection, pouring reinforcement concrete beam.Each layer can construct simultaneously completes reinforced beam 1, to improve construction efficiency.
Preferably, the width of reinforced beam 1≤frame column width -+200 millimeters of shear wall's thickness, and reinforced concrete
Width >=400 millimeter of native beam 1.1 section minimum widith of restraint beam is the shear wall 3 for ensureing reinforced beam 1 and not removing
There is enough force stabilities after constituting combination beam.The maximum width in 1 section of restraint beam is to ensure that reinforced beam 1 anchors
In on frame column 6, limitation beam-ends exceeds the overhanging section width of 6 width of frame column, avoid causing frame column 6 too big it is eccentric by
Power, and influence frame entirety stability.
Preferably, 1 design height of the reinforced beam is calculated according to frame stressing and is determined.Computing Principle is：Shearing
Wall removes line and 1 lower end of reinforced beam in same level, and shear wall removes height and there is certain floating to adjust
Property, therefore remove height in shear wall and determine a value in float value, meanwhile, after the cross-sectional width of reinforced beam 1 determines,
Requirement whether is disclosure satisfy that according to 1 section Accounting Framework force stability of reinforced beam.If being unsatisfactory for requiring, adjustment shearing
Wall removes height, that is, after adjusting armored concrete depth of beam, recalculates review, final to determine that the section of reinforced beam is big
It is small.
Preferably, after the cantilevered plate refers to shear wall dismounting, without the structural slab under any holding state.Shear wall 2 is torn open
Before removing, can there be above structure plate 4 in unilateral or both sides.2 unilateral side of shear wall has when being connect with structural slab 4, increases below junction
Adding reinforced concrete beam 1.When there are the connection of structural slab 4 in 2 both sides of shear wall, increase reinforced concrete below the junction of both sides
Native beam 1 ensures that structure on two sides plate 4 has enough bearings after shear wall dismounting, maintains frame system stability.
Step 2 asks emphasis refering to Fig. 4, and reinforced beam construction is completed, will be in the bottom surface absolute altitude of reinforced beam
It is removed below with shear wall more than the top surface absolute altitude of structural slab, is left shear wall member-retaining portion 3.That is, reinforced concrete
Tu Liang constructions are completed, and the overhead height for removing 5 range of shear wall is determined according to 1 bottom level of reinforced beam, remove shearing
The bottom of 5 range of wall to understructure plate 4 top surface absolute altitude.Preferably, it after the completion of 1 construction and maintenance of reinforced beam, cuts
Power wall is removed range and is terminated since 1 bottom of reinforced beam to 4 face of lower plywood, and multilayer shear wall, which is removed, repeats above range,
And can be carried out at the same time, save the duration.
Step 3 asks emphasis refering to Fig. 5, after i.e. shear wall removes the dismounting of part 5 after the completion of shear wall is removed, to shear wall
The position that the bottom surface of member-retaining portion 3 need to install junction steel plate 7 polishes flat, according to the bolt hole on junction steel plate 7,
Composite construction beam bottom carries out unwrapping wire positioning, and marks, and in the position of label, chemical bolt 8 is planted in drilling, and installation after the completion connects
Steel plate 7, junction steel plate 7 and combination beam concrete contact site brushing steel bonding glue are connect, solid chemical bolt 8 is finally twisted.
Preferably, reinforced beam 1 and 3 combination of shear wall member-retaining portion are in 3 bottom of 1 bottom of beam and shear wall
Setting steel plate 7 connects integral.Combination beam belongs to conjunction old and new concret, to ensure bond quality, reaches cooperative bearing effect,
The stress characteristic that can enhance globality and play beam is connected using steel plate 7.
Preferably, 1 bottom of the beam connects junction steel plate 7 used with 3 bottom of shear wall, and width is 300 millimeters, length
2 thickness of=shear wall+1 width of reinforced beam, under the premise of ensuring steel plate stiffness by itself, to reduce connection steel as far as possible
The usage amount of steel in plate 7.Junction steel plate 7 is anchored in by 12~diameter of diameter, 22 chemical bolt 8 on composite construction beam, to protect
Under the premise of card junction steel plate 7 there are enough anchor forces with combination beam, reduce chemical bolt diameter as far as possible.Junction steel plate
7 are arranged 800~1000 millimeters of spacing along beam direction, and every block of steel plate is arranged chemical bolt 8, is anchored in shear wall reserve part respectively
Divide on 3 and reinforced beam 1, under the premise of ensuring combination beam entirety bond strength, to reduce junction steel plate as far as possible
Usage amount.
Preferably, in the construction method that shear wall is removed in frame-shear-wall structure as described above, the shear wall
Before dismounting, when shear wall unilateral side is connect with structural slab, increase reinforced beam below junction；When shear wall both sides are equal
When having structural slab connection, increase reinforced beam below the junction of both sides.
Preferably, in the construction method that shear wall is removed in frame-shear-wall structure as described above, the reinforcing bar is mixed
Width≤frame column width -+200 millimeters of shear wall's thickness of solidifying Tu Liang, and width >=400 millimeter of reinforced beam, institute
The height for stating reinforced beam determines by the following method：Shear wall removes the bottom surface of line and reinforced beam same
On horizontal plane, shear wall removes line along shear wall and is divided into shear wall member-retaining portion 3 and shear wall dismounting part 5, and shear wall
Removing line has a domain of walker, and a value is determined in the domain of walker that shear wall removes line, meanwhile, in reinforced beam
After width determines, whether requirement disclosure satisfy that according to the section Accounting Framework structure stress stability of reinforced beam；If no
It meets the requirements, the height that adjustment shear wall removes line recalculates review after adjusting armored concrete depth of beam, final true
Determine the cross-sectional sizes of reinforced beam.
Preferably, in the construction method that shear wall is removed in frame-shear-wall structure as described above, work as reinforced concrete
After the completion of native beam construction and maintenance, the Demolition Construction of each story shear wall is carried out at the same time.
The additional structure that shear wall is removed in frame-shear-wall structure provided by the invention is transformed in frame-shear-wall structure
At in frame structure construction, increase appropriately sized reinforced beam, shear wall below shear wall and plate to be removed junction
After dismounting, additional bar beams of concrete is combined into construction beam with the reinforcing of shear wall member-retaining portion, it is ensured that improved frame knot
Structure entirety stability under loading, to save the reinforced beam for newly doing larger cross-section after shear wall is all removed.As it can be seen that by setting
Reinforced beam is set, structure safety can be ensured when shear wall is removed.In addition, additional reinforced beam can be in each layer
Shear wall is all constructed before removing and is finished, i.e., each layer can construct simultaneously, and can play the role of support construction plate, each layer structural slab
After the support by reinforced beam, each story shear wall can be removed simultaneously, not influence structure entirety stress, without in addition
The supporting rack of setting structure plate again accelerates construction progress to reduce construction cost, economizes on resources, and has green low-carbon construction
Advantage, and then make it that there is easy to operate, process compared with shear wall Demolition Construction method in traditional frame-shear-wall structure
The high feature of simplification, reliability, implementation.
In conclusion in this frame-shear-wall structure shear wall remove construction method and additional constructing structure with it is general existing
Technology is compared：
1, using the construction method of additional bar beams of concrete, with its structure stress, excellent convenient for the technological synthesis of construction
Point, with traditional shear wall remove, Structural-transformconstruction construction method have it is easy to operate, low in resources consumption, process is simplified, reliability,
The high feature of implementation.
2, in the utility model construction technology, increase reinforced beam setting, support is reinforced without being arranged under cantilevered plate, and
In multilayer shear wall demolishing process, each layer each process can be carried out at the same time, between not by construction cross influence, be convenient for working sources
Allotment.
3, in the utility model construction technology, in the composition of composite construction beam, the original shear wall structure of member-retaining portion is reduced to original
Structured destruction connects into stress entirety by constructing steel plate with reinforced beam, need not newly do structure again, save money
Also original structure engineering can be preferably protected while source, and there is economical synthesis benefit.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
God and range.In this way, if these modification and variation of the present invention belong to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. the additional structure that shear wall is removed in a kind of frame-shear-wall structure, for tearing shear wall in frame-shear-wall structure open
Divided by it is transformed into frame structure, which is characterized in that cross below junction including being set to shear wall and structural slab to be removed
Reinforced beam and several junction steel plates, the top by shear wall below the bottom surface absolute altitude of reinforced beam with structural slab
It is left shear wall member-retaining portion after partial demolition more than face absolute altitude, the both ends of the reinforced beam anchor into shear wall both ends
Frame column in, the bottom surface of the shear wall member-retaining portion is flushed with the bottom surface of the reinforced beam, the shearing
The bottom of wall member-retaining portion is connect with the bottom of the reinforced beam by the junction steel plate, and composite construction beam is formed,
The junction steel plate along reinforced beam longitudinally spaced setting.
2. the additional structure that shear wall is removed in frame-shear-wall structure according to claim 1, which is characterized in that described
The width of reinforced beam≤frame column width -+200 millimeters of shear wall's thickness, and the width of reinforced beam >=400 are in the least
Rice.
3. the additional structure that shear wall is removed in frame-shear-wall structure according to claim 1, which is characterized in that described
The width of junction steel plate is 300 millimeters, length=shear wall's thickness+armored concrete beam width of the junction steel plate, connection
Steel plate is anchored in by a diameter of 12~22 millimeters of chemical bolts on composite construction beam, and the junction steel plate is along reinforced beam
Longitudinal setting spacing is 800~1000 millimeters.
4. the additional structure that shear wall is removed in frame-shear-wall structure according to claim 1, which is characterized in that described
The design height of reinforced beam is calculated according to frame stressing and is determined.
5. the additional structure that shear wall is removed in frame-shear-wall structure according to claim 1, which is characterized in that work as steel
After the completion of Concrete Beam Reinforced construction and maintenance, shear wall remove range since armored concrete beam bottom to the plate face of understructure plate
Terminate.
6. the additional structure that shear wall is removed in frame-shear-wall structure according to claim 1, which is characterized in that described
The unilateral side or both sides of shear wall are equipped with the structural slab.
7. the construction method that shear wall is removed in a kind of frame-shear-wall structure, which is characterized in that be used for frame-shear wall knot
Shear wall is removed to be transformed into frame structure, using the frame-shear wall knot as described in any one of claim 1-6 in structure
The additional structure that shear wall is removed in structure, this method include
Step 1, in the building of existing frame-shear-wall structure, to being contacted with reinforced beam on shear wall and structural slab
Position carry out surface dabbing processing；For connecting the position of reinforced beam according to reinforcing bar on the frame column of shear wall both sides
Corresponding bar planting is arranged in the reinforcing bar distributing position of beams of concrete；The reinforcing bar of assembling reinforcement beams of concrete simultaneously makes reinforced beam
Reinforcing bar be fixedly connected with bar planting, pouring reinforcement concrete beam；
Step 2, reinforced beam construction is completed, by the top surface with structural slab below the bottom surface absolute altitude of reinforced beam
Shear wall more than absolute altitude is removed, and shear wall member-retaining portion is left；
Step 3, after the completion of shear wall is removed, the position that junction steel plate need to be installed to the bottom surface of shear wall member-retaining portion is beaten
It polishes whole, according to the bolt hole on junction steel plate, carries out unwrapping wire positioning in composite construction beam bottom, and mark, marking
Position drilling plant chemical bolt, junction steel plate is installed after the completion, junction steel plate is viscous with the contact site brushing of combination beam concrete
Steel glue finally twists solid chemical bolt.
8. the construction method that shear wall is removed in frame-shear-wall structure according to claim 7, which is characterized in that described
Before shear wall is removed, when shear wall unilateral side is connect with structural slab, increase reinforced beam below junction；Work as shear wall
When there are structural slab connection in both sides, increase reinforced beam below the junction of both sides.
9. the construction method that shear wall is removed in frame-shear-wall structure according to claim 7, which is characterized in that described
The width of reinforced beam≤frame column width -+200 millimeters of shear wall's thickness, and the width of reinforced beam >=400 are in the least
Rice, the height of the reinforced beam determine by the following method：Shear wall removes the bottom surface of line and reinforced beam
In same level, shear wall removes line along shear wall and is divided into shear wall member-retaining portion and shear wall dismounting part, and cuts
Power wall, which removes line, has a domain of walker, and a value is determined in the domain of walker that shear wall removes line, meanwhile, in armored concrete
After the cross-sectional width of beam determines, wanted according to whether the section Accounting Framework structure stress stability of reinforced beam disclosure satisfy that
It asks；If being unsatisfactory for requiring, adjustment shear wall removes the height of line, recalculates review, final to determine cutting for reinforced beam
Face size.
10. the construction method that shear wall is removed in frame-shear-wall structure according to claim 7, which is characterized in that when
After the completion of reinforced beam construction and maintenance, the Demolition Construction of each story shear wall is carried out at the same time.
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