CN106760849B - Using the steel plate energy-consuming shear wall system production method of heat treatment reduction intensity - Google Patents
Using the steel plate energy-consuming shear wall system production method of heat treatment reduction intensity Download PDFInfo
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- CN106760849B CN106760849B CN201611245475.2A CN201611245475A CN106760849B CN 106760849 B CN106760849 B CN 106760849B CN 201611245475 A CN201611245475 A CN 201611245475A CN 106760849 B CN106760849 B CN 106760849B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0081—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for slabs; for billets
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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
- E04B2/58—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of metal
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/024—Structures with steel columns and beams
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- Civil Engineering (AREA)
- Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
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Abstract
The invention discloses a kind of steel plate energy-consuming shear wall system construction methods using heat treatment reduction intensity, main structure of the construction including frame column and Vierendeel girder first, after main structure binds, the embedded steel plate of each steel plate shear force wall is attached with fish platee, embedded steel plate is the carbon constructional steel plate through Overheating Treatment, and heat treatment process meets following requirements：When carbon constructional steel plate uses Q235 steel plate, yield strength reduces 24%-31%, and ultimate strength reduces 10%-12%, yield tensile ratio 0.49-0.54；When carbon constructional steel plate uses Q345 steel plate, yield strength reduces 38%-41%, and ultimate strength reduces 30%-32%, yield tensile ratio 0.64-0.65.The present invention, as raw material, makes shear wall using common iron after Overheating Treatment, reaches the excellent performance of similar low yield point steel plate shear wall, and easy to make, raw material are common to be easy to get, good economy performance.
Description
Technical field
The present invention relates to the shear walls in a kind of building structure, more particularly to a kind of steel using heat treatment reduction intensity
Plate loss energy shear wall system production method.
Background technique
In the design of high building structure, in order to improve the lateral resistance of structure, often in some specific of structure
Shear wall is arranged in position, to be effective against horizontal wind excitation and horizontal earthquake action.Currently used shear wall mainly includes
Reinforced concrete shear wall and steel plate shear force wall.Steel plate shear force wall due to construct it is convenient, performance efficiency and obtained widely answering
With.
Steel plate shear force wall system be using steel frame and embedded steel plate as the lateral resisting structure system of basic structural unit, from
Structure structurally from the point of view of, cantilever slab and girder can be seen as：Frame column in system is equivalent to the edge of a wing of cantilever beam, embeds
Steel plate is equivalent to web, and Vierendeel girder is equivalent to ribbed stiffener.Under seismic loading, steel plate shear force wall system is by embedding steel
Plastic deformation occurs after plate surrender to consume energy.In order to improve the energy dissipation capacity of steel plate shear force wall, technical staff is by low surrender
Point steel is applied to the embedded steel plate of steel plate shear force wall, since the yield strength of low yield point steel plate is lower, in lesser horizontal lotus
Surrender can be entered under carrying, to can consume energy by biggish plastic deformation under geological process, and can guarantee abundance
Surrender after intensity, so as to form low yield point steel plate shear wall, and applied and promoted in engineering.But it is low
Yield point price of steel product is higher, and only specific a small number of producers are able to produce this new type steel, so that such shear wall
The development of system has certain limitation.
Summary of the invention
The present invention is to solve technical problem present in well-known technique and provide a kind of steel using heat treatment reduction intensity
Plate loss energy shear wall system production method has similar low yield point steel plate shear wall using the shear wall system of this method production
Excellent performance, and facilitate production, raw material are common to be easy to get and good economy performance, is highly suitable to be applied for high building structure
In.
The present invention is adopted the technical scheme that solve technical problem present in well-known technique：It is a kind of to use heat treatment
The steel plate energy-consuming shear wall system construction method of intensity, first main structure of the construction including frame column and Vierendeel girder are weakened, to
After main structure binds, embedded steel plate and the fish platee of each steel plate shear force wall are attached, the embedded steel plate be by
The carbon constructional steel plate of heat treatment, heat treatment process meet following requirements：When the carbon constructional steel plate uses Q235 steel plate,
Yield strength reduces 24%-31%, and ultimate strength reduces 10%-12%, yield tensile ratio 0.49-0.54；When the structural carbon steel
When plate uses Q345 steel plate, yield strength reduces 38%-41%, and ultimate strength reduces 30%-32%, yield tensile ratio 0.64-0.65.
The heat treatment process is realized using temperature control box, and the embedded steel plate is heated to 950- first
1000 DEG C, 30min is then kept the temperature, is subsequently cooled to 600 DEG C, finally closes temperature control box, cooled to room temperature, wherein
The speed of heat temperature raising is 10 DEG C/min, and the speed to cool is 0.5-0.75 DEG C/min.
The thermal treatment zone of the carbon constructional steel plate covers monolith steel plate.
The thermal treatment zone of the carbon constructional steel plate is in interval arranged in strips.
The thermal treatment zone of the carbon constructional steel plate is in the perpendicular arranged in strips in interval.
The thermal treatment zone of the carbon constructional steel plate is in the horizontal arranged in strips in interval.
The invention has the advantages and positive effects that：
1) under seismic (seismal or other horizontal reciprocating load actions, surrender occurs first and enters modeling for steel plate energy-consuming shear wall
Property, earthquake or other load energy are absorbed using its good Hysteresis Behavior, while deformation at beam-to-column joint dog-ear can be reduced to need
Stress concentration phenomenon caused by asking excessive avoids main structure body and main bearing member from serious destruction occur, to protect knot
Structure system general safety；2) when geological process, this new steel plate energy-consuming shear wall is compared to reduce with general steel plate shear wall and be cut
The additional bending moment that power wall generates two side framed columns, reduce frame column destroy a possibility that, while with general steel plate shear wall phase
Than with lesser out-of-plane deformation；3) this new steel plate energy-consuming shear wall raw materials is Q235 common in building structure
And Q345, the relatively expensive low-yield steel of price are not needed to buy, have that raw material are common is easy to get, and good economy performance is excellent
Point；4) this new steel plate energy-consuming shear wall processing and fabricating is convenient, and process is simple, function admirable.In conclusion the present invention is using general
Lead to steel as raw material, shear wall is made after being specifically heat-treated, reaches the excellent of similar low yield point steel plate shear wall
Performance, and it is easy to make, and raw material are common to be easy to get, and good economy performance is highly suitable to be applied in high building structure.
Detailed description of the invention
Fig. 1 is the schematic diagram that the present invention applies；
Fig. 2 is the schematic diagram that the embedded steel plate thermal treatment zone that the present invention uses covers monolith steel plate；
Fig. 3 is the schematic diagram that the embedded steel plate thermal treatment zone that the present invention uses erects arranged in strips in interval；
Fig. 4 is that the embedded steel plate thermal treatment zone that the present invention uses is in the schematic diagram for being spaced horizontal arranged in strips；
Fig. 5 is the thermally treated front and back steel simple tension load-deformation curve schematic diagram of Q235 steel plate that the present invention uses
One of；
Fig. 6 be under the thermally treated front and back steel CYCLIC LOADING of Q235 steel plate that uses of the present invention material property schematic diagram it
One；
Fig. 7 is the thermally treated front and back steel simple tension load-deformation curve schematic diagram of Q235 steel plate that the present invention uses
Two；
Fig. 8 be under the thermally treated front and back steel CYCLIC LOADING of Q235 steel plate that uses of the present invention material property schematic diagram it
Two；
Fig. 9 is the thermally treated front and back steel simple tension load-deformation curve schematic diagram of Q345 steel plate that the present invention uses
One of；
Figure 10 be under the thermally treated front and back steel CYCLIC LOADING of Q345 steel plate that uses of the present invention material property schematic diagram it
One；
Figure 11 is the thermally treated front and back steel simple tension load-deformation curve schematic diagram of Q345 steel plate that the present invention uses
Two；
Figure 12 be under the thermally treated front and back steel CYCLIC LOADING of Q345 steel plate that uses of the present invention material property schematic diagram it
Two.
In figure：1, steel plate, 2, frame column, 3, Vierendeel girder, 4, fish platee, 5, thermal treatment zone are embedded.
Specific embodiment
In order to further understand the content, features and effects of the present invention, the following examples are hereby given, and cooperate attached drawing
Detailed description are as follows：
Fig. 1~Figure 12 is please referred to, a kind of steel plate energy-consuming shear wall system construction method using heat treatment reduction intensity is first
First construction includes the main structure of frame column 2 and Vierendeel girder 3, after main structure binds, by the embedded of each steel plate shear force wall
Steel plate 1 is attached with fish platee 4, and the embedded steel plate 4 is the carbon constructional steel plate through Overheating Treatment, and heat treatment process meets
Following requirements：When the carbon constructional steel plate uses Q235 steel plate, yield strength reduces 24%-31%, and ultimate strength reduces
10%-12%, yield tensile ratio 0.49-0.54；When the carbon constructional steel plate uses Q345 steel plate, yield strength reduces 38%-
41%, ultimate strength reduces 30%-32%, yield tensile ratio 0.64-0.65.
Using the steel plate after heat treatment, yield strength and ultimate strength can be reduced, and ductility can increase, in level
Under seismic force or other horizontal reciprocating load actions, the embedded steel plate 1 of this new steel plate shear wall system can predefined
Horizontal force under surrender, while the energy such as earthquake are consumed by the plastic deformation of its own, and since its yield strength drops significantly
It is low, so that embedded steel plate 1 occurs to surrender and consume energy before buckling occurs for perimeter frame first, and bootable steel plasticity
In setting regions, the seismic force distribution on frame can be effectively reduced, and it is excessive to reduce Deformation Demands at beam-to-column joint dog-ear
Caused stress concentration phenomenon ensures the safety of structure main bearing member.
The opposite ratio of height to thickness of embedded steel plate 1 should be not more than 150, and calculation formula is as follows：λ=He/(tw·εk).λ is in formula
The opposite ratio of height to thickness of embedded steel plate 1；HeFor the free height for embedding steel plate 1；twFor the thickness for embedding steel plate 1；εkIt is corrected for grade of steel and is
Number, is taken as (235/fy)1/2, fyFor the yield strength of steel.
Connecting embedded steel plate 1 should be not less than the thickness of embedded steel plate 1 with 4 thickness of fish platee of frame column 2 and Vierendeel girder 3.
Fish platee 4 and frame column 2 and Vierendeel girder 3 are welded using melt-through weld；Fish platee 4 should meet with the connection of embedded steel plate 1 to be connect
Ultimate bearing capacity is greater than the surrender bearing capacity of embedded steel plate 1；Welded connecting or high-strength bolt connection can be used in connection type, uses
It should ensure that equal strong ties when welding, when connecting using high-strength bolt, bolt should not be less than two column arrangement of two rows, and should reinforce end
Connection, should preferentially select welded connecting in the achievable situation of two ways.
Thermal treatment zone 5 can carry out region-wide processing according to the design needs, so that thermal treatment zone 5 is covered monolith steel plate, such as
Shown in Fig. 2；It can also be vertically spaced strip processing, make thermal treatment zone 5 in perpendicular arranged in strips is spaced, as shown in Figure 3；It can be with
Laterally spaced strip processing keeps thermal treatment zone 5 as shown in Figure 4 in horizontal arranged in strips is spaced.It is heat-treated the spy of different zones
It puts and is：Region-wide heat treatment type energy consumption steel plate shear wall can realize similar low yield point steel plate shear wall performance, so that steel plate is cut
Power wall zone can consume energy into surrender earlier.Interval strip heat treatment type energy consumption steel plate shear wall produces steel plate region
Carded sliver shape local strength weakened section, by plasticity in adjusting steel plate region so as to adjust the field distribution of steel plate pulling force and steel plate pair
The influence of column beam, while being different from slotted steel plate shear wall, the low strong steel plate of strip processing is not disengaged with column beam, therefore is laterally held
Load power, which will not generate, to be decreased obviously.
Fig. 5-Fig. 6 is please referred to, the embedded steel plate 4 uses the example 1 of Q235 steel plate, and Q235 steel plate is added using pasted with ceramic veneer
The mode of backing realizes that heat treatment process, heat treatment process are using programmable temperature-controlled cabinet：First with 10 DEG C/min
Speed heat temperature raising is carried out to Q235 steel plate, until 1000 DEG C, then keep 30min, it is then cooling with the speed of 0.5 DEG C/min
600 DEG C are cooled to, temperature control box is then shut off, to Q235 steel plate cooled to room temperature.Fig. 5 gives Q235 material steel plate through upper
The simple tension load-deformation curve of heat treatment front and back steel is stated, as seen from the figure：The heat treatment of Q235 material steel plate is anteflexion to take intensity
For 275MPa, ultimate strength 435MPa；Yield strength is 190MPa, ultimate strength 385MPa after heat treatment, with heat treatment
Before compare, yield strength reduce by 31%, ultimate strength reduce by 12%, yield tensile ratio 0.49.Fig. 6 gives Q235 material steel plate warp
Material property schematic diagram under the steel CYCLIC LOADING of heat treatment front and back.From 6 figures：Heat treatment can significantly reduce Q235 steel
Yield strength, it can be achieved that enter plasticity in advance under certain load action.Under cyclic load, Q235 steel have obvious
Cyclic hardening effect, its gain in strength and untreated steel are close after certain Cyclic Strain, therefore Q235 steel are relatively applicable in
In the shear wall form of embedded steel plate entire area heat treatment, low yield point steel plate can be realized using common Q235 steel to realize
The effect of shear wall performance enters plasticity in advance, and keep lateral carrying energy by cyclic hardening effect under geological process
Power, while increasing energy dissipation capacity.
Fig. 7-Fig. 8 is please referred to, the embedded steel plate 4 uses the example 2 of Q235 steel plate, and Q235 steel plate is added using pasted with ceramic veneer
The mode of backing realizes that heat treatment process, heat treatment process are using programmable temperature-controlled cabinet：First with 10 DEG C/min
Speed heat temperature raising is carried out to Q235 steel plate, until 950 DEG C, then keep 30min, then cooled down with the speed of 0.75 DEG C/min
To 600 DEG C, it is then shut off temperature control box, Q235 steel plate cooled to room temperature.Fig. 7 give Q235 material steel plate it is thermally treated before
The simple tension load-deformation curve of steel afterwards, as seen from the figure：It is 275MPa that Q235 material steel plate, which is heat-treated the anteflexion intensity that takes,
Ultimate strength is 435MPa；Yield strength is 210MPa, ultimate strength 391MPa after heat treatment, compared with before heat treatment, is bent
Strength reduction 24% is taken, ultimate strength reduces by 10%, yield tensile ratio 0.54.Fig. 8 give Q235 material steel plate it is thermally treated before
Material property schematic diagram under steel CYCLIC LOADING afterwards.As shown in Figure 8：The surrender that heat treatment can significantly reduce Q235 steel is strong
Degree, it can be achieved that enter plasticity in advance under certain load action.Under cyclic load, Q235 steel have apparent circulation
Invigoration effect, its gain in strength and untreated steel are close after certain Cyclic Strain, therefore Q235 steel are relatively suitable for embedding
Low yield point steel plate shear wall can be realized using common Q235 steel to realize in the shear wall form of steel plate entire area heat treatment
The effect of performance enters plasticity in advance, and keep lateral bearing capacity by cyclic hardening effect under geological process, simultaneously
Increase energy dissipation capacity.
Fig. 9-Figure 10 is please referred to, the embedded steel plate 4 is using the example 1 of Q345 steel plate, and Q345 steel plate is using pasted with ceramic veneer
The mode of heating sheet realizes that heat treatment process, heat treatment process are using programmable temperature-controlled cabinet：First with 10 DEG C/
The speed of min carries out heat temperature raising to Q345 steel plate, until 1000 DEG C, 30min is then kept, then with the speed of 0.5 DEG C/min
600 DEG C are cooled to, temperature control box, Q345 steel plate cooled to room temperature are then shut off.Fig. 9 give Q345 material steel plate through heat at
The simple tension load-deformation curve of reason front and back steel, as seen from the figure：Q345 material steel plate is heat-treated the anteflexion intensity that takes
401MPa, ultimate strength 543MPa；Yield strength is 236MPa, ultimate strength 370MPa, before heat treatment after heat treatment
It compares, yield strength reduces by 41%, and ultimate strength reduces by 32%, yield tensile ratio 0.64.Figure 10 gives Q345 material steel plate warp
Material property schematic diagram under the steel CYCLIC LOADING of heat treatment front and back.As seen from the figure：Heat treatment can significantly reduce Q345 steel
Yield strength, it can be achieved that enter plasticity in advance under certain load action.Q345 steel are under cyclic load after heat treatment
The weakening effect of steel strength can be preferably kept, therefore is relatively suitable for the steel plate shearing of embedded steel plate interval strip heat treatment
The effect of the plasticity distribution and development that adjust embedded steel plate region may be implemented in wall form.
Figure 11-Figure 12 is please referred to, the embedded steel plate 4 uses the example 2 of Q345 steel plate, first with the speed of 10 DEG C/min
Heat temperature raising is carried out to Q345 steel plate, until 950 DEG C, 30min is then kept, is then cooled to 600 with the speed of 0.75 DEG C/min
DEG C, it is then shut off temperature control box, steel plate cooled to room temperature.Figure 11 gives the thermally treated front and back steel of Q345 material steel plate
Simple tension load-deformation curve, as seen from the figure：It is 401MPa, ultimate strength that Q345 material steel plate, which is heat-treated the anteflexion intensity that takes,
For 543MPa；Yield strength is 247MPa, ultimate strength 380MPa after heat treatment, compared with before heat treatment, yield strength drop
Low 38%, ultimate strength reduces by 30%, yield tensile ratio 0.65.Figure 12 gives the thermally treated front and back steel of Q345 material steel plate and follows
Ring loads lower material property schematic diagram.As seen from the figure：Heat treatment can significantly reduce Q345 steel yield strength, it can be achieved that
Enter plasticity in advance under certain load action.Q345 steel can preferably keep steel under cyclic load after heat treatment
The weakening effect of intensity, therefore relatively it is suitable for the steel plate shear force wall form of embedded steel plate interval strip heat treatment, it may be implemented to adjust
Save the effect of the plasticity distribution and development in embedded steel plate region.
Although the preferred embodiment of the present invention is described above in conjunction with attached drawing, the invention is not limited to upper
The specific embodiment stated, the above mentioned embodiment is only schematical, be not it is restrictive, this field it is common
Technical staff under the inspiration of the present invention, in the case where not departing from present inventive concept and scope of the claimed protection, goes back
Many forms can be made, within these are all belonged to the scope of protection of the present invention.
Claims (6)
1. it is a kind of using heat treatment reduction intensity steel plate energy-consuming shear wall system construction method, first construction include frame column and
Embedded steel plate and the fish platee of each steel plate shear force wall are attached by the main structure of Vierendeel girder after main structure binds,
It is characterized in that, the embedded steel plate is the carbon constructional steel plate through Overheating Treatment, heat treatment process meets following requirements：Work as institute
When stating carbon constructional steel plate using Q235 steel plate, yield strength reduces 24%-31%, and ultimate strength reduces 10%-12%, Qu Qiang
Than for 0.49-0.54；When the carbon constructional steel plate uses Q345 steel plate, yield strength reduces 38%-41%, ultimate strength
Reduce 30%-32%, yield tensile ratio 0.64-0.65.
2. the steel plate energy-consuming shear wall system construction method according to claim 1 using heat treatment reduction intensity, special
Sign is that the heat treatment process is realized using temperature control box, and the embedded steel plate is heated to 950- first
1000 DEG C, 30min is then kept the temperature, is subsequently cooled to 600 DEG C, finally closes temperature control box, cooled to room temperature, wherein
The speed of heat temperature raising is 10 DEG C/min, and the speed to cool is 0.5-0.75 DEG C/min.
3. the steel plate energy-consuming shear wall system construction method according to claim 1 using heat treatment reduction intensity, special
Sign is that the thermal treatment zone of the carbon constructional steel plate covers monolith steel plate.
4. the steel plate energy-consuming shear wall system construction method according to claim 1 using heat treatment reduction intensity, special
Sign is that the thermal treatment zone of the carbon constructional steel plate is in interval arranged in strips.
5. the steel plate energy-consuming shear wall system construction method according to claim 1 using heat treatment reduction intensity, special
Sign is that the thermal treatment zone of the carbon constructional steel plate is in the perpendicular arranged in strips in interval.
6. the steel plate energy-consuming shear wall system construction method according to claim 1 using heat treatment reduction intensity, special
Sign is that the thermal treatment zone of the carbon constructional steel plate is in the horizontal arranged in strips in interval.
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