CN108678225A - The built-in steel plate combined shear wall of built-in presstressed reinforcing steel steel pipe concrete frame and the practice - Google Patents
The built-in steel plate combined shear wall of built-in presstressed reinforcing steel steel pipe concrete frame and the practice Download PDFInfo
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- CN108678225A CN108678225A CN201810701530.7A CN201810701530A CN108678225A CN 108678225 A CN108678225 A CN 108678225A CN 201810701530 A CN201810701530 A CN 201810701530A CN 108678225 A CN108678225 A CN 108678225A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 263
- 239000010959 steel Substances 0.000 title claims abstract description 263
- 239000004567 concrete Substances 0.000 title claims abstract description 177
- 229910001294 Reinforcing steel Inorganic materials 0.000 title claims abstract description 78
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 23
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 13
- 210000002435 tendon Anatomy 0.000 claims abstract description 8
- 238000009826 distribution Methods 0.000 claims description 30
- 230000002787 reinforcement Effects 0.000 claims description 26
- 239000000839 emulsion Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 239000000853 adhesive Substances 0.000 claims description 6
- 230000001070 adhesive effect Effects 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 5
- 239000002689 soil Substances 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000011065 in-situ storage Methods 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 210000003205 muscle Anatomy 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 238000010008 shearing Methods 0.000 claims 3
- 150000001875 compounds Chemical class 0.000 abstract description 9
- 238000010276 construction Methods 0.000 abstract description 8
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 238000005266 casting Methods 0.000 abstract 1
- 238000005336 cracking Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 230000001771 impaired effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
- E04B2/64—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of concrete
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Abstract
The built-in steel plate combined shear wall of built-in presstressed reinforcing steel steel pipe concrete frame and the practice belong to steel-concrete compound shear wall field, are made of steel pipe concrete frame column, presstressed reinforcing steel, steel plate and reinforced concrete shear wall.At shear wall both ends, steel pipe concrete frame column is set；And presstressed reinforcing steel is set inside it；It is connected with steel plate among two steel pipe concrete frame columns；Bind shear force wall reinforcing steel bar；Tension rib is passed through into steel plate, the reinforcing bar of both sides is connected with each other；Casting concrete；Prestressing force is applied using post stretching and constitutes the built-in steel plate combined shear wall of built-in presstressed reinforcing steel steel pipe concrete frame.Compared with common steel tube concrete frame shear wall and steel plate shear force wall, bearing capacity improves, and bearing capacity and stiffness decaying is slow, later stage anti-seismic performance is stablized, the presence of presstressed reinforcing steel also makes shear wall have restorability, reduces integrally-built displacement, anti-seismic performance is more superior；Unbonded prestressing tendon is easy for construction, can be used in high-rise or large complicated tier building.
Description
Technical field
The present invention is a kind of built-in steel plate combined shear wall of built-in presstressed reinforcing steel steel pipe concrete frame and the practice, belongs to and builds
Building structure field is a kind of Novel steel-combined concrete shear for improving and can partly restoring to deform after structural seismic performance and shake
Wall and preparation method thereof.
Background technology
China's high level and high-rise building have developed rapidly, the high-rise building in 8 degree of 300 meters of areas or more, 400 meters of 7 degree of areas with
On high-rise building had become more common using the engineering of steel-concrete compound shear wall Core Walls Structure.Steel-concrete compound shear wall
Include that different parts by the steel such as shaped steel, steel pipe, steel plate, diagonal brace and concrete in shear wall carry out a variety of of various combination
The steel constructions such as steel plate can be built in shear wall by form.Increase steel pipe concrete frame column etc. in shear wall both sides, in this way
The anti-seismic performance of shear wall can be effectively improved, the shortcomings of corner concrete is easy to crack, frangible, still, general steel are improved
Pipe concrete frame compound shear wall concrete cracking is more early, and residual deformation is larger after concrete disintegrating is impaired is difficult to restore, and holds
Carrying power reduces, and shake back wall is impaired to be repaired more difficult, and shear wall can effectively be improved and use the longevity by increasing the restorability of shear wall
It is repaired after life and shake.
Increasing presstressed reinforcing steel in wall can make structure have certain restorability, and general Self-resetting shear wall is in wall
Presstressed reinforcing steel is added in body to connect wall with basis, it is vertical by being arranged in the both ends foot of shear wall bottom, medium position
Energy-consuming parts the middle part such as set normally connecting to other connection types and are improved, and can reduce the remaining of wall in this way and become
Shape, but lateral resisting is insufficient.Currently, requirement of the national regulation to building is increasingly stringenter, now just towards self-healing requirement
Development, and skyscraper is also more and more, it is higher and higher to the performance requirement of shear wall, therefore be badly in need of researching and developing a kind of novel tool
There are certain recoverable function and the steel-concrete compound shear wall with preferable anti-seismic performance.
Invention content
The present invention is for bearing capacity, ductility, the energy dissipation scarce capacity for solving irrecoverable in earthquake and shear wall
The problem of.Steel pipe concrete frame combined concrete shear wall and presstressed reinforcing steel are combined, and arrange steel plate in wall, is provided
A kind of structural seismic performance is preferable, with certain restorability can Novel steel-combined concrete shear wall, be mainly used for
The shear wall structure or tube structure of skyscraper or large complicated tier building.
The technical solution adopted by the present invention is as follows：
The built-in built-in steel plate shear force wall of presstressed reinforcing steel steel pipe concrete frame, it is characterised in that：Including concrete filled steel tube side
Frame column (1), presstressed reinforcing steel (2), steel plate (3) and reinforced concrete shear wall；Wall section is I-shaped, is cut in armored concrete
Steel pipe concrete frame column (1) is arranged in power wall both ends；Presstressed reinforcing steel (2) is built in the built-in steel plate combination of steel pipe concrete frame
In the frame columns of shear wall；Wall direction steel plate (3) is arranged parallel to inside shear wall；In steel pipe concrete frame column (1)
It is welded between steel plate (3)；The both sides of steel plate (3) are arranged symmetrically to be made of horizontal distribution reinforcing bar (6) and vertical distribution bar (7)
Bar-mat reinforcement, be used in combination socket reinforcing bar (8) across steel plate (3) reserve circular hole the bar-mat reinforcement of both sides is socketed；Wall it is upper and lower
Top grid beam (9) and following grid beam or foundation beam (10) is arranged in position；By steel pipe concrete frame column (1), top grid beam (9),
Following grid beam or foundation beam (10) and the forming of reinforced concrete shear wall body disturbing concrete；It, will be pre- using post stretching after molding
Stress rib is stretched to design prestress value, is used in combination anchorage (4) fixed, that is, it is built-in to constitute built-in presstressed reinforcing steel steel pipe concrete frame
Steel plate combined shear wall.
Further, welding, bar-mat reinforcement are all made of between steel plate (3), horizontal reinforcement (6) and steel pipe concrete frame column (1)
Gap between steel plate (3) will ensure that pouring for concrete is unaffected.
Further, size of the steel pipe concrete frame column (1) in thickness of wall body direction is more than thickness of wall body, and section form is
Round, rectangle or polygon, frame columns inside is using single-chamber body steel core concrete column or uses Multicarity concrete filled steel tube steel
Pipe concrete frame columns (1) upper end lower end is respectively protruding into top grid beam (9) and following grid beam or foundation beam (10).
Further, the presstressed reinforcing steel (2) is the prestress wire or prestressing force screw-thread steel of soap-free emulsion polymeization or part adhesive
Muscle directly uses finished product un-bonded prestressed steel strand, or completely cuts off concrete and steel in common steel strand wires housing bellows etc.
The method of the bonding of twisted wire is arranged in steel pipe concrete frame column (1) inside, and 1 or more is evenly arranged in frame columns in advance
Stress rib, the control stress for prestressing value of prestress wire are no less than 0.4 times of presstressed reinforcing steel ultimate strength standard value；It answers in advance
The tension stress controlling value of power spiral is not preferably less than 0.5 times of prestressing force spiral yield strength standard value.
Further, the anchorage (4) is divided into fixing end anchorage and stretching end anchorage, is separately fixed at steel pipe concrete frame
The both ends of column, are pressed on backing plate.
Further, the backing plate (5) is at steel pipe concrete frame column both ends, and pad is in anchorage in the following, its length and width dimensions is big
In the size of steel pipe, and on backing plate reserve presstressed reinforcing steel by hole.
Further, steel plate (3) thickness should ensure that and concrete pouring quality will not be made to reduce, and in arrangement tension rib
Position reserving hole；Steel tie (8) in the assembled wall passes through the hole that steel plate (3) is reserved by the level of wallboard both sides
The reinforced mesh drawknot of distribution bar (6) and vertical distribution bar (7) composition gets up.
Further, the horizontal distribution reinforcing bar (6) of the assembled wall is connect with steel pipe concrete frame column (1)；Vertical point
Cloth reinforcing bar (7) upper end lower end is respectively protruding into the rigid connection carried out in top grid beam (9) and following grid beam or foundation beam (10)；It is perpendicular
It stretches into top grid beam (9) and is rigidly connected to distribution bar (7) upper end, vertical distribution bar (7) lower end is respectively protruding into down
It is rigidly connected in frame beam or foundation beam (10).
Further, the top grid beam (9) and following grid beam or foundation beam (10) are reinforced beam, or mixed for shaped steel
Solidifying Tu Liang, rectangular cross-section, concrete cast in situs.
The method for preparing the built-in built-in steel plate shear force wall of presstressed reinforcing steel steel pipe concrete frame, it is characterised in that：
Production order is as follows：
1) steel pipe concrete frame column (1), steel plate (3), backing plate (5) are made, is reserved across presstressed reinforcing steel on backing plate (5)
Circular hole, on steel plate (3) reserve across tension rib circular hole, backing plate (5) is welded on the upper of steel pipe concrete frame column (1)
Lower both ends, and steel plate and the steel pipe concrete frame column of both sides are welded；
2) presstressed reinforcing steel (2) is passed through into bellows, by the inside of steel pipe concrete frame column, the hole reserved from backing plate
It is pierced by, and is fixed with anchorage (4) in lower end；
3) reinforcing bar of the following grid beam of binding concrete or foundation beam (10), and steel plate-steel pipe with presstressed reinforcing steel is mixed
Solidifying soil frame, the vertical distribution bar of shear wall are inserted into the steel reinforcement cage of following grid beam or foundation beam (10), pour into a mould following grid beam or
The concrete of foundation beam (10) ensures that the anchorage of presstressed reinforcing steel bottom is close to lower part backing plate when pouring, after concrete curing consolidates,
The bottom of following grid beam or foundation beam (10) and steel plate-steel pipe concrete frame, the vertical distribution bar of shear wall is set to realize rigid
Property connection, presstressed reinforcing steel lower part is in fixing end；
4) production technique reinforcing bar (6), and horizontal reinforcement and steel core concrete column are welded；Pass through steel with steel tie (8)
The reserved circular hole of plate sockets the horizontal reinforcement (6) of steel plate both sides and longitudinal reinforcement (7) formation；
5) top grid beam (9) is made, itself and steel pipe concrete frame column (1), steel plate (3) and the vertical distribution bar of wallboard are made
(6) it is rigidly connected；
6) thickness of concrete cover, fixed steel pipe concrete frame are reserved by spacer in shear wall wallboard both sides
The position of bellows in column, and be allowed to keep vertical, the template of the concrete of branch cast later；
7) concrete for pouring steel pipe concrete frame column (1), shear wall wallboard, top grid beam (9), poured in engineering
Any concrete cannot be had by placing in the bellows of presstressed reinforcing steel, be demoulded after molding.
8) after being molded, check whether presstressed reinforcing steel keeps soap-free emulsion polymeization, if there are part adhesives to be cleared up, it is ensured that soap-free emulsion polymeization
Afterwards, using post stretching by tension of prestressed tendon to prestress value is designed, be used in combination anchorage (4) fixed, form built-in prestressing force concrete steel
The built-in steel plate combined shear wall of pipe concrete frame.
The present invention be by presstressed reinforcing steel and the built-in steel plate combined shear wall of steel pipe concrete frame be composed prestressing force with
The advantageous combination of steel-concrete combined structure, using the steel that presstressed reinforcing steel is arranged in the larger lower region of shear wall stress
Construction in pipe concrete frame columns, while giving full play to built-in steel plate concrete assembled wall board shock resistance, also fully
The energy dissipation of presstressed reinforcing steel and recoverable effect is utilized, after avoiding concrete wall cracking, bearing capacity of wall body is fast
Speed reduces.After adding presstressed reinforcing steel in the steel core concrete column of the novel compositions shear wall, have the function of with lower stress and spy
Point：Since prestress wire or high tensile reinforcement soap-free emulsion polymeization section are longer, even if the concrete filled steel tube of the lower shear wall bottom of big shake
Frame is close to the un-bonded prestressed steel strand or high tensile reinforcement when surrender, being arranged in steel pipe concrete frame also still in bullet
Property, easily restore better function after shake.Under tensile load, pulling force is born by presstressed reinforcing steel first, until steel pipe zero stress state is
Start steel pipe and presstressed reinforcing steel and bear pulling force jointly, concrete filled steel tube stretcher strain reduction, steel pipe surrender delay, rod piece tension energy
Power significantly improves, and after tension load removes, stretcher strain can partly or entirely restore, to make entire combined member have
Function restorability.
The steel core concrete column at wall both ends can effectively improve the anti-seismic performance of wall, in reinforced concrete shear wall
Middle increase steel plate, and closely connect steel plate with both sides reinforced concrete wall by tension rib, concrete panel can be effective
The flat out-of-plane buckling of constraint steel plate give full play to the deformation energy dissipation capacity of steel when earthquake load inputs, effectively improve whole
The vertical bearing capacity of body component, steel plate are combined into an entirety with reinforced concrete wall, work together, and have complementary advantages.
The built-in built-in steel plate combined shear wall of presstressed reinforcing steel steel pipe concrete frame of the present invention has under geological process
Certain restorability.In seismic energy input, reinforced concrete wall panel starts to play a role as one of anti-vibration defense lines, steel
Pipe concrete frame and built-in steel plate have delayed the appearance in concrete wall crack, and the prestressing force of application can be to a certain extent
The recoverable force for making wall effectively reduces integrally-built displacement, improves concrete panel vertical bearing capacity and restoring force.With
The increase of input energy, concrete wall cracking, steel pipe concrete frame is arranged close to surrendering in steel pipe concrete frame
Unbonded prestressing tendon still can constrain the displacement of wall also still in elasticity.Unbonded prestressing tendon and concrete filled steel tube
There is good co-operation performance, unbonded prestressing tendon is in wall loading process between the built-in steel plate combined shear wall of frame
It keeps elasticity, the prestressing force of application that can constrain the deformation of wall, makes wall that there is restorability, the relative shear of concrete wall
Sliding is substantially reduced, and cracking dispersion, bearing capacity, ductility and energy dissipation capacity are sheared than normal concrete shear wall and steel reinforced concrete
Wall is significantly improved, and later stage anti-seismic performance is stablized relatively, and prestressing without bondn post-tensioning is easy for construction, can be used for high-rise or large-scale multiple
In miscellaneous tier building.
Core lateral resisting component of the shear wall as building structure, improves the shock resistance of shear wall, also just improves
The shock resistance and restoring force of structure entirety, when building meet with violent earthquake when, its earthquake can be mitigated, after shake can part it is extensive
It is multiple.
Description of the drawings
Fig. 1 is the built-in steel plate combined shear wall elevational schematic view of built-in presstressed reinforcing steel steel pipe concrete frame
Fig. 2 is compound shear wall wall horizontal profile schematic diagram
Fig. 3 is vertical cross section schematic diagram at compound shear wall frame columns
Fig. 4 is compound shear wall wall vertical cross section schematic diagram
Attached drawing code name explanation：1- steel pipe concrete frame columns, 2- presstressed reinforcing steels, 3- steel plates, 4- anchorages, 5- backing plates, 6- water
Flat distribution bar, the vertical distribution bars of 7-, 8- steel ties, the tops 9- grid beam, the following grid beams of 10- or foundation beam.
Specific implementation mode
With reference to specific embodiment, the present invention will be further described：
The structural schematic diagram of built-in built-in one structural unit of steel plate combined shear wall of presstressed reinforcing steel steel pipe concrete frame
As shown in Figure 1, Figure 2, shown in Fig. 3 and Fig. 4.
The built-in built-in steel plate shear force wall of presstressed reinforcing steel steel pipe concrete frame, by steel pipe concrete frame column 1, presstressed reinforcing steel
2, steel plate 3 and reinforced concrete shear wall composition.It is mainly characterized by：Wall section is I-shaped, and presstressed reinforcing steel is built in steel pipe
In the frame columns of the built-in steel plate combined shear wall of concrete frame.
" the built-in steel plate combined shear of steel pipe concrete frame " refers to by steel pipe concrete frame column 1, steel plate 3, water
The steel-concrete compound shear wall that flat reinforcing bar 6 is combined with longitudinal reinforcement 7.
" the built-in presstressed reinforcing steel steel pipe concrete frame " refers to that prestress wire 2 is placed on steel pipe concrete frame
In column 1, combined steel pipe concrete column is formed.
Size of the steel pipe concrete frame column 1 in thickness of wall body direction is more than thickness of wall body, and section form can be
Round, rectangle and polygon etc., single-chamber body steel core concrete column may be used inside frame columns, and that Multicarity steel pipe can also be used is mixed
Solidifying soil can also add construction measure appropriate in portion in the cavity, such as weld stud, addition are vertically put more energy on steel pipe inner wall
Rib etc., upper end lower end are respectively protruding into top grid beam 9 and following grid beam or foundation beam 10, and steel strength takes Q345.
The presstressed reinforcing steel 2 is the prestress wire or prestressing force spiral of soap-free emulsion polymeization or part adhesive, can be direct
Using finished product un-bonded prestressed steel strand, also the viscous of concrete and steel strand wires can be completely cut off in common steel strand wires housing bellows etc.
The method of knot is arranged in inside steel pipe concrete frame column 1, and 1 or more presstressed reinforcing steels can be arranged in frame columns, should be used
It is arranged symmetrically, partition board, block board thickness and steel pipe consistency of thickness, two presstressed reinforcing steels should be added when more presstressed reinforcing steels in centre by arranging
The clear spacing of reserving hole channel is not preferably less than 50mm, and is not preferably less than 1.25 times of coarse aggregate size, in the steel core concrete column of both sides
Presstressed reinforcing steel arrangement should use identical set, the control stress for prestressing value of prestress wire to be no less than 0.4 times of prestressing force
Tendon exhaustion limits strength standard value, should not exceed 0.75 times of presstressed reinforcing steel ultimate strength standard value；The tensioning of prestressing force spiral
Stress Control value is not preferably less than 0.5 times of prestressing force spiral yield strength standard value, should not exceed 0.85 times of prestressing force screw thread
Reinforcement yielding strength standard value.
The anchorage 4 divides for fixing end anchorage and stretching end anchorage, is separately fixed at the both ends of steel pipe concrete frame column,
It is pressed on backing plate, fixing end uses Extrusion anchor ground tackle, uses steel anchoring cone for steel strand tension end, deformed bar is adopted
Use nut anchor.
The backing plate 5 is at steel pipe concrete frame column both ends, and pad is in anchorage in the following, its length and width dimensions is all higher than the ruler of steel pipe
Very little, thickness is not preferably less than 20mm, and steel strength takes Q345, reserved on backing plate presstressed reinforcing steel by hole, bore hole size ratio
The big 4mm or more of diameter of presstressed reinforcing steel.
The steel plate 3 is welded with both sides steel pipe concrete frame column 1, is placed on the center of reinforced concrete wall, thickness
Should ensure that will not be such that concrete pouring quality reduces, and preferably with steel pipe consistency of thickness, arrangement tension rib position reserving hole.
The horizontal distribution reinforcing bar 6 of the assembled wall is connect with steel pipe concrete frame column 1；Vertical 7 upper end of distribution bar
Lower end is respectively protruding into top grid beam 9 and following grid beam or foundation beam 10 and is reliably rigidly connected, respectively to distributing reinforcement arrangement of reinforcement
Rate should be greater than 0.25%, and bar diameter is not preferably less than 16mm, select HRB400 grades of hot-rolled reinforced bars.
Steel tie 8 in the assembled wall passes through the hole that steel plate 3 is reserved by the horizontal distribution reinforcing bar 6 of wallboard both sides
The reinforced mesh drawknot formed with vertical distribution bar 7 gets up.
The top grid beam 9 and following grid beam or foundation beam 10 are reinforced beam, or are girder with rolled steel section en cased in concrete, section
For rectangle, concrete cast in situs.
Specifically, strength grade of concrete is not lower than C 40.
The built-in built-in steel plate combined shear wall of presstressed reinforcing steel steel pipe concrete frame, production order are as follows：
1) steel pipe concrete frame column (1), steel plate (3), backing plate (5) are made, is reserved across presstressed reinforcing steel on backing plate (5)
Circular hole, on steel plate (3) reserve across tension rib circular hole, backing plate (5) is welded on the upper of steel pipe concrete frame column (1)
Lower both ends, and steel plate and the steel pipe concrete frame column of both sides are welded；
2) presstressed reinforcing steel (2) is passed through into bellows, by the inside of steel pipe concrete frame column, the hole reserved from backing plate
It is pierced by, and is fixed with anchorage (4) in lower end；
3) reinforcing bar of the following grid beam of binding concrete or foundation beam (10), and steel plate-steel pipe with presstressed reinforcing steel is mixed
Solidifying soil frame, the vertical distribution bar of shear wall are inserted into the steel reinforcement cage of following grid beam or foundation beam (10), pour into a mould following grid beam or
The concrete of foundation beam (10) ensures that the anchorage of presstressed reinforcing steel bottom is close to lower part backing plate when pouring, after concrete curing consolidates,
The bottom of following grid beam or foundation beam (10) and steel plate-steel pipe concrete frame, the vertical distribution bar of shear wall is set to realize reliable
Rigid connection, presstressed reinforcing steel lower part is in fixing end；
4) production technique reinforcing bar (6), and horizontal reinforcement and steel core concrete column are welded；Pass through steel with steel tie (8)
The reserved circular hole of plate sockets the horizontal reinforcement (6) of steel plate both sides and longitudinal reinforcement (7) formation；
5) top grid beam (9) is made, itself and steel pipe concrete frame column (1), steel plate (3) and the vertical distribution bar of wallboard are made
(6) it is reliably rigidly connected；
6) thickness of concrete cover, fixed steel pipe concrete frame are reserved by spacer in shear wall wallboard both sides
The position of bellows in column, and be allowed to keep vertical, the template of the concrete of branch cast later；
7) concrete for pouring steel pipe concrete frame column (1), shear wall wallboard, top grid beam (9), poured in engineering
Any concrete cannot be had by placing in the bellows of presstressed reinforcing steel, be demoulded after molding.
8) after being molded, check whether presstressed reinforcing steel keeps soap-free emulsion polymeization, if there are part adhesives suitably to be cleared up, it is ensured that
After soap-free emulsion polymeization, enough construction spaces can be provided for tensioning equipment, use post stretching in the reserved construction hole of stretching end in construction
It by tension of prestressed tendon to prestress value is designed, is used in combination anchorage (4) fixed, is formed in built-in presstressed reinforcing steel steel pipe concrete frame
Hide steel plate combined shear wall.
It is the exemplary embodiments of the present invention above, implementation of the invention is without being limited thereto.
Claims (10)
- The built-in steel plate shear force wall of presstressed reinforcing steel steel pipe concrete frame built in 1., it is characterised in that：Including steel pipe concrete frame Column (1), presstressed reinforcing steel (2), steel plate (3) and reinforced concrete shear wall；Wall section is I-shaped, in steel reinforced concrete shearing force Steel pipe concrete frame column (1) is arranged in wall both ends；Presstressed reinforcing steel (2) is built in the built-in steel plate combination of steel pipe concrete frame and cuts In the frame columns of power wall；Wall direction steel plate (3) is arranged parallel to inside shear wall；In steel pipe concrete frame column (1) and Steel plate welds between (3)；The both sides of steel plate (3), which are arranged symmetrically, to be made of horizontal distribution reinforcing bar (6) and vertical distribution bar (7) Bar-mat reinforcement, be used in combination socket reinforcing bar (8) across steel plate (3) reserve circular hole the bar-mat reinforcement of both sides is socketed；The upper and lower of wall Install top grid beam (9) and following grid beam or foundation beam (10)；By steel pipe concrete frame column (1), top grid beam (9), under Frame beam or the forming of foundation beam (10) and reinforced concrete shear wall body disturbing concrete；After molding, it will be answered in advance using post stretching Power muscle is stretched to design prestress value, is used in combination anchorage (4) fixed, that is, constitutes the built-in steel of built-in presstressed reinforcing steel steel pipe concrete frame Board group combination shearing wall.
- 2. the built-in steel plate shear force wall of built-in presstressed reinforcing steel steel pipe concrete frame according to claim 1, it is characterised in that： Welding is all made of between steel plate (3), horizontal reinforcement (6) and steel pipe concrete frame column (1), between bar-mat reinforcement and steel plate (3) Gap will ensure that pouring for concrete is unaffected.
- 3. the built-in steel plate shear force wall of built-in presstressed reinforcing steel steel pipe concrete frame according to claim 1, it is characterised in that： Size of the steel pipe concrete frame column (1) in thickness of wall body direction is more than thickness of wall body, and section form is round, rectangle or polygon Shape, frame columns inside is using single-chamber body steel core concrete column or uses Multicarity concrete filled steel tube steel pipe concrete frame column (1) upper end lower end is respectively protruding into top grid beam (9) and following grid beam or foundation beam (10).
- 4. the built-in steel plate shear force wall of built-in presstressed reinforcing steel steel pipe concrete frame according to claim 1, it is characterised in that： The presstressed reinforcing steel (2) is the prestress wire or prestressing force spiral of soap-free emulsion polymeization or part adhesive, directly uses finished product Un-bonded prestressed steel strand, or completely cut off in common steel strand wires housing bellows the method for the bonding of concrete and steel strand wires, It is internal to be arranged in steel pipe concrete frame column (1), 1 or more presstressed reinforcing steels, prestress steel twist are evenly arranged in frame columns The control stress for prestressing value of line is no less than 0.4 times of presstressed reinforcing steel ultimate strength standard value；The tensioning of prestressing force spiral Stress Control value is not preferably less than 0.5 times of prestressing force spiral yield strength standard value.
- 5. the built-in steel plate shear force wall of built-in presstressed reinforcing steel steel pipe concrete frame according to claim 1, it is characterised in that： The anchorage (4) is divided into fixing end anchorage and stretching end anchorage, is separately fixed at the both ends of steel pipe concrete frame column, is pressed in pad On plate.
- 6. the built-in steel plate shear force wall of built-in presstressed reinforcing steel steel pipe concrete frame according to claim 1, it is characterised in that： The backing plate (5) at steel pipe concrete frame column both ends, pad in anchorage in the following, its length and width dimensions is all higher than the size of steel pipe, and On backing plate reserve presstressed reinforcing steel by hole.
- 7. the built-in steel plate shear force wall of built-in presstressed reinforcing steel steel pipe concrete frame according to claim 1, it is characterised in that： Steel plate (3) thickness should ensure that and concrete pouring quality will not be made to reduce, and in the position reserving hole of arrangement tension rib；Institute The steel tie (8) in assembled wall is stated to pass through the hole that steel plate (3) is reserved by the horizontal distribution reinforcing bar (6) of wallboard both sides and erect The reinforced mesh drawknot formed to distribution bar (7) gets up.
- 8. the built-in steel plate shear force wall of built-in presstressed reinforcing steel steel pipe concrete frame according to claim 1, it is characterised in that： The horizontal distribution reinforcing bar (6) of the assembled wall is connect with steel pipe concrete frame column (1)；Under vertical distribution bar (7) upper end End is respectively protruding into the rigid connection carried out in top grid beam (9) and following grid beam or foundation beam (10)；On vertical distribution bar (7) End, which is stretched into top grid beam (9), to be rigidly connected, and vertical distribution bar (7) lower end is respectively protruding into following grid beam or foundation beam (10) it is rigidly connected in.
- 9. the built-in steel plate shear force wall of built-in presstressed reinforcing steel steel pipe concrete frame according to claim 1, it is characterised in that： The top grid beam (9) and following grid beam or foundation beam (10) are reinforced beam, or are girder with rolled steel section en cased in concrete, and section is square Shape, concrete cast in situs.
- 10. preparing the built-in steel plate shearing of built-in presstressed reinforcing steel steel pipe concrete frame as described in any one of claims 1-9 The method of wall, it is characterised in that：Production order is as follows：1) steel pipe concrete frame column (1), steel plate (3), backing plate (5) are made, the circle across presstressed reinforcing steel is reserved on backing plate (5) Hole, reserves the circular hole across tension rib on steel plate (3), and backing plate (5) is welded on up and down the two of steel pipe concrete frame column (1) End, and steel plate and the steel pipe concrete frame column of both sides are welded；2) presstressed reinforcing steel (2) is passed through into bellows, by the inside of steel pipe concrete frame column, pierced from the hole that backing plate is reserved Go out, and is fixed with anchorage (4) in lower end；3) reinforcing bar of the following grid beam of binding concrete or foundation beam (10), and by steel plate-concrete filled steel tube with presstressed reinforcing steel The vertical distribution bar of frame, shear wall is inserted into the steel reinforcement cage of following grid beam or foundation beam (10), pours into a mould following grid beam or basis The concrete of beam (10) ensures that the anchorage of presstressed reinforcing steel bottom is close to lower part backing plate, after concrete curing consolidates, under making when pouring The rigidity that the bottom of frame beam or foundation beam (10) and steel plate-steel pipe concrete frame, the vertical distribution bar of shear wall is realized connects It connects, presstressed reinforcing steel lower part is in fixing end；4) production technique reinforcing bar (6), and horizontal reinforcement and steel core concrete column are welded；It is pre- by steel plate with steel tie (8) The circular hole stayed sockets the horizontal reinforcement (6) of steel plate both sides and longitudinal reinforcement (7) formation；5) top grid beam (9) is made, itself and steel pipe concrete frame column (1), steel plate (3) and the vertical distribution bar of wallboard (6) are made It is rigidly connected；6) thickness of concrete cover is reserved by spacer in shear wall wallboard both sides, fixed in steel pipe concrete frame column The position of bellows, and be allowed to keep vertical, the template of the concrete of branch cast later；7) concrete for pouring steel pipe concrete frame column (1), shear wall wallboard, top grid beam (9), poured in engineering and placed There cannot be any concrete in the bellows of presstressed reinforcing steel, be demoulded after molding；8) after being molded, check whether presstressed reinforcing steel keeps soap-free emulsion polymeization, if there are part adhesives to be cleared up, it is ensured that after soap-free emulsion polymeization, It using post stretching by tension of prestressed tendon to prestress value is designed, is used in combination anchorage (4) fixed, it is mixed to form built-in presstressed reinforcing steel steel pipe The built-in steel plate combined shear wall of solidifying soil frame.
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| CN110835967A (en) * | 2019-11-20 | 2020-02-25 | 北京建工四建工程建设有限公司 | Method for controlling combined shear wall cracks by adopting prestress |
| CN114856024A (en) * | 2022-04-28 | 2022-08-05 | 成都理工大学 | Novel self-resetting concrete shear wall and construction method and application thereof |
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Application publication date: 20181019 |