CN111411688A - Reinforced concrete frame structure - Google Patents
Reinforced concrete frame structure Download PDFInfo
- Publication number
- CN111411688A CN111411688A CN202010250888.XA CN202010250888A CN111411688A CN 111411688 A CN111411688 A CN 111411688A CN 202010250888 A CN202010250888 A CN 202010250888A CN 111411688 A CN111411688 A CN 111411688A
- Authority
- CN
- China
- Prior art keywords
- cast
- groove
- floor slab
- place floor
- frame structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 15
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims abstract description 129
- 238000005192 partition Methods 0.000 claims abstract description 29
- 239000004567 concrete Substances 0.000 claims abstract description 23
- 229910000831 Steel Inorganic materials 0.000 claims description 26
- 239000010959 steel Substances 0.000 claims description 26
- 239000000463 material Substances 0.000 claims description 3
- 238000005452 bending Methods 0.000 description 13
- 238000013461 design Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 239000006096 absorbing agent Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Images
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
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
- E04B1/21—Connections specially adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/17—Floor structures partly formed in situ
- E04B5/23—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated
- E04B5/28—Cross-ribbed floors
-
- 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
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
-
- 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
- E04H9/025—Structures with concrete columns
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Environmental & Geological Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention relates to the technical field of building structures, and particularly discloses a reinforced concrete frame structure which comprises a cast-in-place floor slab and a frame beam, wherein L-shaped partition grooves are formed in the joints of four corners of the cast-in-place floor slab and the end part of the frame beam, the lengths of two sides of each partition groove are respectively equal to 1/8 of the span of the cast-in-place floor slab in the corresponding direction, filling structures are arranged in the partition grooves, and each filling structure comprises a concrete layer, an extruded sheet, a first benzene plate, a second benzene plate and an insert column.
Description
Technical Field
The invention relates to the technical field of building structures, and particularly discloses a reinforced concrete frame structure.
Background
The earthquake-resistant performance of the reinforced concrete frame structure is closely related to the failure mechanism of the frame, and the earthquake-resistant design specification provides the earthquake-resistant design principles of 'strong columns and weak beams', 'strong shear and weak bending', 'strong node and weak members', and is usually realized by adopting an increase coefficient method. However, practical earthquake damage and research show that the damage mechanism of the column hinge of the frame structure is common, and one important reason for the phenomenon is that the contribution of the cast-in-place floor slab to the bending resistance bearing capacity of the frame beam end is neglected in the design. In fact, in the frame structure, the cast-in-place floor slab and the beam are cast together, so that the stress of the beam is participated, and the bending rigidity and the bearing capacity of the frame beam are improved to a certain extent. The actual bending bearing capacity of the frame beam can be increased by 20-30% by the steel bars in the cast-in-place floor slab, and even increased by nearly 1 time under some conditions, which does not accord with the design principle of strong columns, weak beams and strong shear weak bending.
Disclosure of Invention
The invention aims to provide a reinforced concrete frame structure to solve the problem that a cast-in-place floor slab can increase the bending resistance bearing capacity of a frame beam.
In order to achieve the purpose, the basic scheme of the invention is as follows:
the reinforced concrete frame structure comprises a cast-in-place floor slab and a frame beam, L-shaped partition grooves are formed in the joints of the four corners of the cast-in-place floor slab and the end parts of the frame beam, the lengths of the two sides of each partition groove are respectively equal to 1/8 of the span of the cast-in-place floor slab in the corresponding direction, and filling structures are arranged in the partition grooves.
Optionally, the top and the bottom of the partition groove are both concrete layers with a steel wire mesh structure.
Optionally, a plurality of slots which are parallel up and down are formed in two inner walls of the partition groove, which are close to the cast-in-place floor slab, extruded sheets are inserted into the slots, a first benzene plate is filled between the upper and lower adjacent extruded sheets, and the extruded sheets and the first benzene plate are located between two concrete layers.
Optionally, after the extruded sheet is inserted into the slot, a gap is reserved between the extruded sheet and the frame beam, and a second benzene plate is vertically filled in the gap.
Optionally, the vertical first vertical logical groove that is equipped with of one end that is close to on the extruded sheet and cuts off groove right angle inflection point, the vertical second vertical logical groove that is equipped with of one end that is close to on the first benzene board and cuts off groove right angle inflection point, first vertical logical groove aligns from top to bottom with the vertical logical groove of second, cuts off and has inserted the square post of inserting in the groove, is equipped with two inserted blocks on the post of inserting, the inserted block can insert first vertical logical groove and the vertical logical inslot of second, the material of inserting the post is the same with first benzene board.
Optionally, the diameter of steel wires of the steel wire mesh in the concrete layer is 1.6mm-3mm, the distance between the steel wires is 200mm-400mm, and the distance between the end part of each steel wire and the cast-in-place floor slab is 20mm-60 mm.
Optionally, the concrete layer below and the cast-in-place floor slab are simultaneously poured, and the concrete layer above is poured after the extruded sheet, the first benzene plate, the second benzene plate and the inserted columns are filled.
The working principle and the beneficial effects of the scheme are as follows:
1. the partition groove separates the cast-in-place floor from the end part of the frame beam, namely, part of reinforcing steel bars of the cast-in-place floor are not directly connected with the frame beam, so that the contribution of the cast-in-place floor to the bending resistance of the frame beam can be reduced, and the design principle of strong shear and weak bending is ensured.
2. In order to ensure the bearing capacity of the partition groove, the extruded sheet, the first benzene sheet, the second benzene sheet and the inserting column are filled in the partition groove, and the extruded sheet, the first benzene sheet, the second benzene sheet and the inserting column are filled in the partition groove as a filling structure, so that the bearing capacity of the partition groove can be improved. The structural strength of the extruded sheet is greater than that of the first benzene sheet and the second benzene sheet and the extruded sheet is inserted, the extruded sheet mainly plays a role in stress, and the deformable degree of the first benzene sheet and the second benzene sheet is greater than that of the extruded sheet, so that the extruded sheet can deform to absorb vibration energy when being vibrated, and the anti-seismic performance is improved. The structure in the whole partition groove is equivalent to a shock absorber, and the shock absorber can be stressed and can also absorb shock, and the effect is good.
3. In order to further guarantee the bearing capacity of the partition groove and the attractiveness of a cast-in-place floor slab, concrete layers are arranged at the upper end and the lower end of the partition groove. Meanwhile, the concrete layer adopts a steel wire mesh structure, and the bending resistance contribution of the steel wire mesh structure to the frame beam is far lower than that of a steel bar structure, so that the bending resistance promotion of the steel wire mesh structure to the frame beam is very limited.
4. The extruded sheet in this scheme inserts on the inner wall that cuts off the groove, and it only is connected the contact with cast-in-place floor, and the effect is the bearing capacity that improves and cuts off the groove, and then has the vertical packing of second floor between extruded sheet and the frame roof beam, and extruded sheet and second floor only contact but do not have the physical connection, so the extruded sheet can not promote the bending resistance of frame roof beam. In a similar way, the second benzene board is vertically arranged and is not physically connected with the frame beam, so that the bending resistance of the frame beam cannot be improved, and the design principle of strong shearing and weak bending can be ensured. Simultaneously, in this scheme, it has first benzene board to fill between two upper and lower extruded sheet, and the quality of first benzene board is light, can reduce whole filling structure's quality effectively.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment;
fig. 2 is a schematic structural diagram of a connection part between one corner of a cast-in-place floor slab and a frame beam.
Fig. 3 is a schematic structural view of the partition groove.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: frame roof beam 1, cast-in-place floor 2, cut off groove 3, extruded sheet 4, second benzene board 5, insert post 6, inserted block 7, steel wire 8, slot 9, first benzene board 10, concrete layer 11, first vertical logical groove 12, the vertical logical groove 13 of second.
This embodiment is shown in fig. 1-3:
the reinforced concrete frame structure comprises a cast-in-place floor slab 2 and a frame beam 1, L-shaped partition grooves 3 are formed in the joints of the four corners of the cast-in-place floor slab 2 and the end parts of the frame beam 1, the lengths of two sides of each partition groove 3 are respectively equal to 1/8 of the span of the cast-in-place floor slab 2 in the corresponding direction, and filling structures are arranged in the partition grooves 3.
The filling structure comprises a concrete layer 11, an extruded sheet 4, a first benzene board 10, a second benzene board 5 and an insert column 6.
A plurality of slots 9 which are parallel up and down are formed in two inner walls of the partition groove 3 close to the cast-in-place floor slab 2, and an inserting plate is integrally formed at one end of the extruded sheet 4, which faces the slots 9, and can be inserted into the slots 9. The first benzene board 10 is filled between two adjacent extruded sheets 4 from top to bottom, and the extruded sheets 4 and the first benzene board 10 are both positioned between two concrete layers 11.
After the extruded sheet 4 is inserted into the slot 9 and the first benzene plate 10 is filled, the extruded sheet 4 and the first benzene plate 10 do not completely fill the partition groove 3, a gap is left between the extruded sheet 4 and the first benzene plate 10 and the frame beam 1, and the second benzene plate 5 is vertically filled in the gap. The width of the gap is equal to the depth of the slot 9 and also equal to the thickness of the second benzene plate 5.
The vertical first vertical logical groove 12 that is equipped with of one end that is close to on the extruded sheet 4 and separates 3 right angle inflexions in groove, the vertical second that is equipped with of one end that is close to on the first benzene board 10 and separates 3 right angle inflexions in groove 13 that leads to, first vertical logical groove 12 aligns from top to bottom with the vertical logical groove 13 that leads to of second. Insert in separating groove 3 and have square post 6 of inserting, insert integrated into one piece and be equipped with two inserted blocks 7 on the post 6, inserted block 7 can insert first vertical logical groove 12 and the vertical logical groove 13 of second in, the material of post 6 is the same with first benzene board 10.
The specific implementation process is as follows:
the cast-in-place floor 2 reserves the space of separating groove 3 before pouring, also needs to reserve the space of slot 9 on the inner wall of separating groove 3 simultaneously, cuts off the pre-buried steel wire 8 in inner wall top of groove 3, and the distance that steel wire 8 stretches out is 60 mm. And after the pouring is finished, installing the lowermost extruded sheet 4, then filling a layer of first benzene board 10, and continuously installing the extruded sheet 4 upwards. After the extruded sheet 4 and the first benzene board 10 are installed, the second benzene board 5 is vertically inserted. Then, the insert block 7 of the insert column 6 is aligned with the first vertical through groove 12 and the second vertical through groove 13, and the insert column 6 is inserted into the partition groove 3. And finally, binding a new steel wire 8 on the steel wire 8 and pouring concrete.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the present invention.
Claims (7)
1. The reinforced concrete frame structure is characterized by comprising a cast-in-place floor slab and a frame beam, wherein L-shaped partition grooves are formed in the joints of the four corners of the cast-in-place floor slab and the end parts of the frame beam, the lengths of two sides of each partition groove are respectively equal to 1/8 of the span of the cast-in-place floor slab in the corresponding direction, and filling structures are arranged in the partition grooves.
2. A reinforced concrete frame structure according to claim 1, wherein: the top and the bottom of the partition groove are both concrete layers with steel wire mesh structures.
3. A reinforced concrete frame structure according to claim 2, wherein: the partition groove is provided with a plurality of slots which are parallel up and down on two inner walls close to the cast-in-place floor slab, extruded sheets are inserted into the slots, a first benzene board is filled between the upper and lower adjacent extruded sheets, and the extruded sheets and the first benzene board are both positioned between two concrete layers.
4. A reinforced concrete frame structure according to claim 3, wherein: after the extruded sheet is inserted into the slot, a gap is reserved between the extruded sheet and the frame beam, and a second benzene plate is vertically filled in the gap.
5. A reinforced concrete frame structure according to claim 4, wherein: the vertical first vertical logical groove that is equipped with of one end that is close to on the extruded sheet and cuts off groove right angle inflection point, the vertical second that is equipped with of one end that is close to on the first benzene board and cuts off groove right angle inflection point aligns from top to bottom, cuts off and has inserted the square post of inserting in the groove, is equipped with two inserted blocks on the post of inserting, the inserted block can insert first vertical logical groove and the vertical logical inslot of second, the material of inserting the post is the same with first benzene board.
6. A reinforced concrete frame structure according to claim 5, wherein: the diameter of steel wires of the steel wire mesh in the concrete layer is 1.6mm-3mm, the distance between the steel wires is 200mm-400mm, and the distance between the end part of each steel wire and the cast-in-place floor slab is 20mm-60 mm.
7. A reinforced concrete frame structure according to claim 6, wherein: the concrete layer below and the cast-in-place floor slab are simultaneously poured, and the concrete layer above is poured after the extruded sheet, the first benzene board, the second benzene board and the inserted columns are filled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010250888.XA CN111411688B (en) | 2020-04-01 | 2020-04-01 | Reinforced concrete frame structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010250888.XA CN111411688B (en) | 2020-04-01 | 2020-04-01 | Reinforced concrete frame structure |
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| Publication Number | Publication Date |
|---|---|
| CN111411688A true CN111411688A (en) | 2020-07-14 |
| CN111411688B CN111411688B (en) | 2021-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010250888.XA Active CN111411688B (en) | 2020-04-01 | 2020-04-01 | Reinforced concrete frame structure |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1751162A (en) * | 2003-02-19 | 2006-03-22 | 株式会社饭田建筑设计事务所 | Floor-supporting structure of building |
| CN1839235A (en) * | 2004-11-25 | 2006-09-27 | 新日本制铁株式会社 | Joint fitting between members and joint structure and joining method of upper and lower floor vertical frame members |
| CN101831958A (en) * | 2010-04-30 | 2010-09-15 | 河北理工大学 | Reinforced concrete frame node |
| CN201671185U (en) * | 2010-04-30 | 2010-12-15 | 河北理工大学 | Reinforced concrete frame joint |
| CN106703257A (en) * | 2017-01-20 | 2017-05-24 | 广州赫来斯装饰材料有限公司 | Partition wall supporting device |
| CN108867854A (en) * | 2018-08-10 | 2018-11-23 | 深圳市建筑设计研究总院有限公司 | Reinforced concrete frame and its construction method |
| CN109252691A (en) * | 2018-10-19 | 2019-01-22 | 沈阳建筑大学 | A kind of reinforced steel concrete framed floor structure and reinforcement means |
| CN208965708U (en) * | 2018-09-13 | 2019-06-11 | 北京建谊投资发展(集团)有限公司 | Steel structure system and house |
-
2020
- 2020-04-01 CN CN202010250888.XA patent/CN111411688B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1751162A (en) * | 2003-02-19 | 2006-03-22 | 株式会社饭田建筑设计事务所 | Floor-supporting structure of building |
| CN1839235A (en) * | 2004-11-25 | 2006-09-27 | 新日本制铁株式会社 | Joint fitting between members and joint structure and joining method of upper and lower floor vertical frame members |
| CN101831958A (en) * | 2010-04-30 | 2010-09-15 | 河北理工大学 | Reinforced concrete frame node |
| CN201671185U (en) * | 2010-04-30 | 2010-12-15 | 河北理工大学 | Reinforced concrete frame joint |
| CN106703257A (en) * | 2017-01-20 | 2017-05-24 | 广州赫来斯装饰材料有限公司 | Partition wall supporting device |
| CN108867854A (en) * | 2018-08-10 | 2018-11-23 | 深圳市建筑设计研究总院有限公司 | Reinforced concrete frame and its construction method |
| CN208965708U (en) * | 2018-09-13 | 2019-06-11 | 北京建谊投资发展(集团)有限公司 | Steel structure system and house |
| CN109252691A (en) * | 2018-10-19 | 2019-01-22 | 沈阳建筑大学 | A kind of reinforced steel concrete framed floor structure and reinforcement means |
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| Publication number | Publication date |
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| CN111411688B (en) | 2021-04-23 |
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Effective date of registration: 20210325 Address after: 225115 Wayao Village, Chengbei Township, Yangzhou City, Jiangsu Province Applicant after: Yangzhou Fengyang Xinte Building Materials Technology Co.,Ltd. Address before: 401220 No.34, group 6, Tizi village, Honghu Town, Changshou District, Chongqing Applicant before: Chen Zhenquan |
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