CN111576617A - High-ductility concrete energy-consumption filling wall frame structure and construction method thereof - Google Patents

High-ductility concrete energy-consumption filling wall frame structure and construction method thereof Download PDF

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Publication number
CN111576617A
CN111576617A CN202010344706.5A CN202010344706A CN111576617A CN 111576617 A CN111576617 A CN 111576617A CN 202010344706 A CN202010344706 A CN 202010344706A CN 111576617 A CN111576617 A CN 111576617A
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wall
frame
ductility concrete
frame structure
energy
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CN111576617B (en
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邓明科
吕浩
范洪侃
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Wuhe New Materials Technology Suzhou Co ltd
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Xian University of Architecture and Technology
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/20Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/66Sealings
    • E04B1/68Sealings of joints, e.g. expansion joints
    • E04B1/6812Compressable seals of solid form
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/66Sealings
    • E04B1/68Sealings of joints, e.g. expansion joints
    • E04B1/6813Compressable seals of hollow form
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/92Protection against other undesired influences or dangers
    • E04B1/98Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/74Removable non-load-bearing partitions; Partitions with a free upper edge
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H9/00Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
    • E04H9/02Buildings, 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
    • E04H9/021Bearing, supporting or connecting constructions specially adapted for such buildings
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H9/00Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
    • E04H9/02Buildings, 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
    • E04H9/025Structures with concrete columns

Abstract

The invention provides a high-ductility concrete energy-consumption infilled wall frame structure and a construction method thereof, and aims to solve the problems of insufficient bearing capacity, poor ductility and low energy-consumption capacity of a common infilled wall frame structure. The high-ductility concrete energy-consumption filler wall frame structure is composed of frame columns, frame beams, flexible connections, filler walls and a high-ductility concrete surface layer; during construction, the flexible material is firstly fixed on the frame column, then the infilled wall is built, and finally high-ductility concrete is uniformly pressed and smeared on the surface of the infilled wall. The bearing capacity, the ductility and the energy consumption capability of the high-ductility concrete energy consumption filled wall frame structure are obviously higher than those of a common filled wall frame, the constraint effect of a filled wall on a frame column is reduced, and the damage of the frame column is reduced. The high-ductility concrete energy-consumption filler wall frame structure has the advantages of convenience in construction, simple structure and low cost, is suitable for a new structure, and can be used for reinforcing and transforming the existing structure.

Description

High-ductility concrete energy-consumption filling wall frame structure and construction method thereof
Technical Field
The invention belongs to the technical field of building structure engineering and reinforcement and reconstruction, and particularly relates to a high-ductility concrete energy-consumption filler wall frame structure and a construction method thereof.
Background
Infill wall framing is a widely used form of construction. When the infill wall frame structure is designed, the infill wall is regarded as a non-structural member, the infill wall is regarded as a vertical load acting on the frame structure, the contribution of the infill wall to the rigidity of the frame structure is considered by a method of reducing the self-vibration period, and the interaction between the infill wall and the frame is ignored.
Under the action of earthquake, the deformation capability of the filler wall and the frame is inconsistent, the filler wall blocks the deformation of the frame, and the filler wall has higher rigidity and bears most horizontal earthquake action. Because the strength of the filler wall is low, brittle failure is easy to occur. The earthquake damage of the previous times shows that: the frame beam and the column are slightly damaged or basically intact, but the infilled wall is seriously damaged; especially, the collapse of the stair partition wall as an escape passage is the most serious. Infill wall damage or collapse can result in serious personal injury and loss of property. Particularly, the single-span structure in the middle and primary schools has small lateral stiffness and low redundancy and is easy to collapse under strong earthquakes.
Disclosure of Invention
Aiming at the defects or shortcomings of the prior art, the invention aims to provide a high-ductility concrete energy-consumption infilled wall frame structure and a construction method thereof.
Therefore, the high-ductility concrete energy-consumption filler wall frame structure provided by the invention comprises frame columns, frame beams and a filler wall positioned between the frame beams and the frame columns, wherein a flexible connecting layer is arranged between the frame columns and the filler wall, and a high-ductility concrete surface layer is pressed and smeared on the surface of the filler wall.
Optionally, the thickness of the high-ductility concrete surface layer (5) is 10-30 mm.
Optionally, the thickness of the flexible connection layer is determined according to equations (1) and (2):
t=Δu/2 (1)
Δu=θ×h (2)
in the formula: t is the thickness of the flexible material, unit: mm; the delta u is the interlayer displacement allowed to be generated by the frame when the infilled wall does not participate in resisting the horizontal load, and the unit is as follows: mm; theta is the interlayer displacement angle of the frame structure; h is the floor height of the calculation floor, and the unit is as follows: mm.
Optionally, the thickness of the flexible connecting layer is 5-30 mm.
Optionally, the flexible connecting layer is made of a polystyrene foam board, a polyurethane foaming agent or silicone adhesive.
Optionally, the height of the flexible connecting layer is the same as that of the filler wall, and the width of the flexible connecting layer is the thickness of the filler wall (4) plus 2 times of the thickness of the high-ductility concrete surface layer (5).
The construction method of the high-ductility concrete energy-consumption filling wall frame structure comprises the following steps:
step one, constructing a frame column and a frame beam;
fixing the flexible connecting layer on the frame column (1);
step three, building a filler wall (4) between the flexible connecting layers;
and fourthly, pressing and smearing a high-ductility concrete surface layer (5) on the surface of the filling wall.
The invention also provides a building adopting the structure. The high-ductility concrete energy-consumption infilled wall frame structure is mainly suitable for common civil buildings (multi-storey and high-rise reinforced concrete frame infilled wall structure houses) and also suitable for industrial buildings.
The invention has the beneficial effects that:
(1) after the high-ductility concrete energy-consumption infilled wall frame structure provided by the invention is applied to actual engineering, when the high-ductility concrete energy-consumption infilled wall frame structure is subjected to the action of a low-intensity earthquake, only the frame main body bears horizontal earthquake force, and the high-ductility concrete energy-consumption infilled wall is basically not stressed.
(2) When the high-ductility concrete energy-consuming filler wall is subjected to the action of a high-intensity earthquake, the high-ductility concrete energy-consuming filler wall is tightly extruded with the frame, the energy-consuming filler wall is activated, the energy-consuming filler wall and the frame play a role together, and the bearing capacity is obviously improved.
(3) Under the action of a strong earthquake, the high-ductility concrete energy-consumption filling wall dissipates energy input from the outside, and the surface layer only has fine cracks, so that the high-ductility concrete energy-consumption filling wall can be continuously used without repairing or slightly repairing after the earthquake.
In conclusion, in the structure of the invention, the high-ductility concrete surface layers are pressed and smeared on the inner and outer side surfaces of the filler wall to form the high-ductility concrete energy-consumption filler wall, so that the local crushing of the filler wall can be effectively avoided, the constraint effect of the filler wall on the frame is reduced, the damage to the filler wall and the frame is reduced, the integrity and the anti-seismic performance of the frame filler wall are obviously improved, and the repair work after strong shock is reduced or even avoided. In addition, the high-ductility concrete surface layer adopted in the invention has the advantages of convenient construction, simple structure, good economy and no increase of the dead weight of the structure.
The present invention will be described in further detail below with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic structural view of a high-ductility concrete energy-consuming infilled wall frame structure according to the invention;
FIG. 2 is a schematic cross-sectional view of FIG. 1;
FIG. 3 is a schematic diagram of the dimensions and reinforcement of test pieces IF, DIF and FDIF;
FIG. 4a is a schematic diagram of a test piece IF before loading; FIG. 4b is a schematic view of a specimen before DIF loading; FIG. 4c is a schematic view of a test piece before FDIF loading;
FIG. 5a is a schematic view showing a failure mode of a specimen IF; FIG. 5b is a schematic view of the fracture mode of the specimen DIF; FIG. 5c is a schematic view of the destruction state of FDIF specimen;
FIG. 6a is a hysteresis curve of the test piece IF; FIG. 6b is a plot of hysteresis of a specimen DIF; FIG. 6c is a plot of hysteresis of FDIF test pieces;
FIG. 7 is a skeleton plot of test pieces IF, DIF and FDIF;
fig. 8 is a graph showing the cumulative energy consumption of the test pieces IF, DIF and FDIF.
Detailed Description
Interpretation of terms:
unless otherwise defined, all terms and parameters of the present invention are understood according to their ordinary knowledge in the art or are implemented by means of the conventional techniques in the art.
The high ductility concrete of the present invention is a material known in the art, which is a structural material with high toughness, high crack resistance and high damage resistance, and has typical strain hardening characteristics and fine multi-crack development phenomena under tensile load, such as but not limited to the high ductility concrete disclosed in CN102910871B and CN111003980A, and optimization or improvement based on the same. The effects of the high-ductility concrete in the present invention include, but are not limited to: 1) the brittle failure mode of the common infilled wall frame structure can be improved; 2) the problems of small deformation capability, poor integrity and insufficient collapse resistance of the masonry infilled wall are solved; 3) the bearing capacity, the ductility and the energy consumption capacity of the common infilled wall frame structure are improved. The formula of the high-ductility concrete in the scheme of the invention is not limited, and the formula design is based on the technical purpose of realizing the invention. The thickness of the high-ductility concrete surface layer can be determined according to the plastering thickness +/-10 mm of a filling wall in actual engineering, for example, 10-30 mm.
The functions of the flexible connecting layer of the present invention include, but are not limited to: 1) the constraint effect of the filler wall on the frame column is reduced; 2) the adverse effect of the filler wall on the frame body is reduced. The concrete material can be selected from polystyrene foam board, polyurethane foaming agent or silicone adhesive. The thickness of the flexible connecting layer can be determined according to the following formula:
t=Δu/2 (1),Δu=θ×h (2)
in the formula: t is the thickness of the flexible material; deltau is the interlayer displacement (mm) allowed to be generated by the frame when the filler wall does not participate in resisting the horizontal load; theta is the interlayer displacement angle of the frame structure; h is the calculated floor height (mm). For example: the thickness of the flexible connecting layer can be 5-30 mm.
Including the above description, in the overall structure, the accumulated energy consumption of the high-ductility concrete infilled wall frame structure of the invention is more than 9 times of that of the common infilled wall frame structure (see the result in fig. 8) in the extreme displacement, thereby playing the role of the energy-consuming infilled wall and greatly improving the energy-consuming capacity of the infilled wall frame structure.
In the structure and the construction process, the connection mode of the flexible connection layer and the frame column can adopt the construction connection means of the existing engineering, for example, a direct sticking or filling mode can be adopted.
Example 1:
as shown in fig. 1 and 2, the present embodiment provides a high-ductility concrete energy-consuming infilled wall frame structure with the following dimensions: the length of the center line of the frame column is 4.3m, the height of the column is 3m, the thickness of the filler wall is 200mm, the outer surface of the filler wall 4 is coated with a high-ductility concrete surface layer 5 with the thickness of 15mm, and the thickness of the flexible connecting layer of the polystyrene foam plate is 20 mm;
the formulation of the high ductility concrete used in this example was: cement, fly ash, silica fume, sand, PE fiber, steel fiber and water, wherein, by mass ratio, the cement: fly ash: silica fume: sand: water 1: 0.1: 0.2: 0.76: 0.22, taking the total volume of the cement, the fly ash, the silica fume, the sand and the water after being uniformly mixed as a base number, wherein the volume mixing amount of the PE fiber is 1 percent, and the volume mixing amount of the steel fiber is 2 percent;
the concrete used is C30 grade commercial concrete, the frame beam and the column reinforcing steel bars are HRB400 grade reinforcing steel bars, the infilled wall is MU5.0 grade sintered hollow bricks (240mm multiplied by 200mm multiplied by 115mm), the infilled wall is built in a full-smooth mode, and the mortar joint thickness is 10 mm. The cross-sectional dimensions and the reinforcing bars are the same, and the geometrical dimensions and the reinforcing bars are shown in figure 3.
The construction method comprises the following steps: firstly, frame column and beam construction is carried out; fixing polystyrene foam plates 3 with the thickness of 20mm on the inner sides of the frame columns 1 on two sides; building the filler wall 4 according to the traditional process; uniformly pressing and smearing high-ductility concrete surface layers 5 on the surfaces of the two sides of the filler wall 4; and finishing the construction of the high-ductility concrete energy-consumption filling wall frame structure.
The following are comparative tests on the seismic performance of the high-ductility concrete energy-consumption infilled wall frame structure (FDIF test piece) provided by the inventor:
(1) test protocol
Experimental design and manufacture of 3 test pieces: ordinary infilled wall frame test piece (frame post + frame roof beam + infilled wall), high ductility concrete reinforcement infilled wall frame test piece (frame post + frame roof beam + infilled wall + high ductility concrete surface course) and high ductility concrete power consumption infilled wall frame test piece (frame post + frame roof beam + infilled wall + high ductility concrete surface course + flexible connection layer, embodiment 1 structure), the serial number is IF respectively, DIF, FDIF. The cross-sectional dimensions and the reinforcing bars are the same, and the geometrical dimensions and the reinforcing bars are shown in figure 3.
The concrete used in each test piece is C30-grade commercial concrete, the frame beam and the column steel bars are HRB 400-grade steel bars, the infilled wall is MU 5.0-grade sintered hollow bricks (240mm multiplied by 200mm multiplied by 115mm), the infilled wall is built in a full-smooth mode, and the mortar joint thickness is 10 mm. The test piece manufacturing completion effect is shown in fig. 4.
(2) Test results
Fig. 5, 6, 7 and 8 are pseudo-static test results of a common filler wall frame structure (IF test piece), a high-ductility concrete reinforced filler wall frame (DIF test piece) and a high-ductility concrete energy-consumption filler wall frame structure (FDIF test piece), respectively:
as can be seen from FIG. 5, the failure mechanism of the test piece IF is local collapse failure of the filler wall; the DIF damage mechanism of the test piece is extrusion damage of the corner part of the filler wall, and the integrity of the test piece is better; the FDIF failure mechanism of the test piece is extrusion failure of the corner part of the filler wall, and the integrity of the FDIF failure mechanism is better.
As can be seen from fig. 6 and 7, after the peak load, the horizontal load of the test pieces IF and DIF decreases faster; in the early stage of loading, the frame of the test piece FDIF bears horizontal load, after the test piece FDIF is loaded to a certain horizontal displacement, the flexible material is squeezed to be flat, the energy-consuming filling wall is activated, the frame and the energy-consuming filling wall bear the horizontal load together, after the peak load, the horizontal load is slowly reduced, the hysteresis loop becomes fuller, and the energy consumption and the ductility are obviously improved.
Combining fig. 6 and 7 and obtaining by calculation:
1) the limit interlayer displacement angles of the test pieces IF, DIF and FDIF are 1/54, 1/137 and 1/33 respectively, and the FDIF of the high-ductility concrete energy-consumption infilled wall test piece is far larger than the limit value 1/50 of the elastic-plastic interlayer displacement angle of the frame structure specified in GB 50011-2010 anti-seismic design Specification for buildings.
2) The displacement ductility coefficients of the test pieces IF, DIF and FDIF are respectively 6.15, 5.13 and 19.21, the displacement ductility coefficients of the test pieces FDIF are respectively 3.12 times and 3.74 times of the test pieces IF and DIF, and the improvement range is large.
3) The peak load of the specimen FDIF was 1.80 times and 0.92 times that of the specimens IF and DIF, respectively.
By combining the graph 8 and calculation, the corresponding accumulated energy consumption of the FIF at the yield point, the peak point and the failure point is respectively 1.34 times, 8.28 times and 9.32 times of that of the IF, which shows that the high-ductility concrete energy consumption filling wall is adopted, the energy consumption mechanism is fully exerted, and the energy consumption capability of the filling wall frame can be greatly improved.
Example 2:
this example differs from example 1 in that:
the embodiment provides a high ductility concrete power consumption infilled wall frame structure size as follows: the length of the center line of the frame column is 5.0m, the height of the column is 3.0m, and the thickness of the infilled wall is 200 mm; the outer surface of the filler wall 4 is coated with a high-ductility concrete surface layer 5 with the thickness of 10 mm; the flexible material is a polyurethane foaming agent, and the thickness of the flexible material is 10 mm;
the formula of the high-ductility concrete comprises: cement, fly ash, silica fume, sand, PE fiber, steel fiber and water, wherein, by mass ratio, the cement: fly ash: silica fume: sand: water 1: 0.2: 0.28: 0.76: 0.27, taking the total volume of the cement, the fly ash, the silica fume, the sand and the water after being uniformly mixed as a base number, wherein the volume mixing amount of the PE fiber is 1.3 percent, and the volume mixing amount of the steel fiber is 1.3 percent.
The above test was carried out on the structure of this example, and the results showed that:
(1) when the test piece is damaged, cracks of a high-ductility concrete surface layer are fully developed, the damage to the filling wall and the frame is small, the integrity of the filling wall and the frame is better, and a damage mechanism of beam hinges occurs to a frame main body;
(2) when the earthquake happens slightly, the frame mainly plays a role of horizontal earthquake, and the energy-consuming infilled wall is basically not stressed; during medium and large earthquakes, the frame and the energy-consuming filling wall resist the action of horizontal earthquakes together; after the peak load, the horizontal load is slowly reduced, the hysteresis ring becomes fuller, and the bearing capacity, the ductility and the energy consumption capacity are obviously improved;
(3) the limit interlayer displacement angle of the test piece is far larger than the limit value 1/50 of the elastic-plastic interlayer displacement angle of the frame structure specified in GB 50011-2010 anti-seismic design Specification for buildings.
Example 3:
this example differs from example 1 in that:
the length of the center line of the frame column is 7.0m, the height of the column is 4.2m, and the thickness of the filler wall is 200 mm. The outer surface of the filler wall 4 is coated with a high-ductility concrete surface layer 5 with the thickness of 20 mm; the flexible material used was silicone adhesive, 25mm thick.
The formula of the high-ductility concrete comprises: cement, fly ash, silica fume, sand, PE fiber, steel fiber and water, wherein, by mass ratio, the cement: fly ash: silica fume: sand: water 1: 0.3: 0.4: 0.76: 0.32, based on the total volume of the cement, the fly ash, the silica fume, the sand and the water which are uniformly mixed, wherein the volume mixing amount of the PE fiber is 1.5 percent, and the volume mixing amount of the steel fiber is 2 percent.
The above test was carried out on the structure of this example, and the results showed that:
(1) the test piece destruction mechanism is beam hinge destruction, the energy-consuming infilled wall and the frame are less damaged, and the integrity is better;
(2) due to the constraint effect of the high-ductility concrete surface layer on the filling wall, after peak load, the horizontal load is slowly reduced, the hysteresis loop becomes fuller, and the energy consumption and ductility are obviously improved;
(3) the limit interlayer displacement angle of the test piece is far larger than the limit value 1/50 of the elastic-plastic interlayer displacement angle of the frame structure specified in GB 50011-2010 anti-seismic design Specification for buildings.
From the above test results, it can be seen that:
(1) the high-ductility concrete energy-consumption infilled wall disclosed by the invention fully plays a role of a first defense line, reduces the damage of the infilled wall, avoids casualties and economic losses caused by collapse of the infilled wall under a large earthquake, can be used without repair under small earthquake and medium earthquake, and can be used after slight repair under large earthquake.
(2) According to the high-ductility concrete energy-consumption filling wall frame structure, only the frame bears horizontal load during small and medium earthquakes, the frame and the energy-consumption filling wall bear the horizontal load during large earthquakes, the frame and the energy-consumption filling wall can still bear the load after the peak load is reached, the bearing capacity is reduced slowly, and the bearing capacity and ductility are improved remarkably.
In conclusion, the high-ductility concrete energy-consumption infilled wall frame structure has the advantages of simple structure, convenience in construction and cost saving, the bearing capacity, deformation and energy-consumption capacity of the infilled wall frame structure can be obviously improved, the constraint effect of the infilled wall on the frame is reduced, and the damage to the infilled wall and the frame is reduced.
The above examples are merely illustrative of the present invention and should not be construed as limiting the scope of the invention, which is intended to be covered by the claims and any design similar or equivalent to the scope of the invention. The components and structures of the present embodiments that are not described in detail are well known in the art and do not constitute essential structural elements or elements.

Claims (8)

1. The utility model provides a high ductility concrete power consumption infilled wall frame structure, includes frame post (1), frame roof beam (2) and is located infilled wall (4) between frame roof beam and the frame post, its characterized in that: be equipped with flexible connection layer (3) between frame post and the infilled wall, infilled wall surface has pressed and has smeared high ductility concrete surface course (5).
2. The high-ductility concrete energy-dissipating infill wall frame structure as claimed in claim 1, wherein the thickness of the high-ductility concrete surface layer (5) is 10-30 mm.
3. The high-ductility concrete energy-dissipating infilled wall frame structure of claim 1, characterized in that, polystyrene foam board, polyurethane foaming agent or silicone adhesive is selected for the flexible connecting layer.
4. The high-ductility concrete energy-dissipating filler wall frame structure according to claim 1, wherein the thickness of the flexible connecting layer is 5-30 mm.
5. The high ductility concrete energy dissipating infill wall frame structure of claim 1, wherein the thickness of said flexible connecting layer is determined according to equations (1) and (2):
t=Δu/2 (1)
Δu=θ×h (2)
in the formula: t is the thickness of the flexible material, unit: mm; the delta u is the interlayer displacement allowed to be generated by the frame when the infilled wall does not participate in resisting the horizontal load, and the unit is as follows: mm; theta is the interlayer displacement angle of the frame structure; h is the floor height of the calculation floor, and the unit is as follows: mm.
6. The high ductility concrete energy dissipating infill wall frame structure of claim 1, wherein the flexible connecting layer has the same height as the infill wall and a width of 2 times the thickness of the infill wall (4) plus the thickness of the high ductility concrete facing (5).
7. The method for constructing the high-ductility concrete energy-dissipating infill wall frame structure as claimed in any one of claims 1 to 6, wherein the method comprises the following steps:
step one, constructing a frame column and a frame beam;
fixing the flexible connecting layer on the frame column (1);
step three, building a filler wall (4) between the flexible connecting layers;
and fourthly, pressing and smearing a high-ductility concrete surface layer (5) on the surface of the filling wall.
8. A building structure, characterized in that the building structure employs the high-ductility concrete energy-consuming infill wall frame structure of claim 1.
CN202010344706.5A 2020-04-27 2020-04-27 High-ductility concrete energy-consumption filling wall frame structure and construction method thereof Active CN111576617B (en)

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