CN112064852A - Floor system structure with double-curved arch shell and construction method thereof - Google Patents
Floor system structure with double-curved arch shell and construction method thereof Download PDFInfo
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- CN112064852A CN112064852A CN202010856943.XA CN202010856943A CN112064852A CN 112064852 A CN112064852 A CN 112064852A CN 202010856943 A CN202010856943 A CN 202010856943A CN 112064852 A CN112064852 A CN 112064852A
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- arch shell
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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
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/43—Floor structures of extraordinary design; Features relating to the elastic stability; Floor structures specially designed for resting on columns only, e.g. mushroom floors
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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
- E04B1/32—Arched structures; Vaulted structures; Folded structures
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- Engineering & Computer Science (AREA)
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Abstract
The invention discloses a floor system structure with a hyperbolic arch shell, which is characterized by comprising an upright post (1), a beam (2), a filling layer (3) and a hyperbolic arch shell (4), wherein the upright post (1) and the beam (2) form a frame, the beam (2) is distributed along the transverse direction and the longitudinal direction, four beams connected end to end form a beam lattice, a hyperbolic arch shell is arranged in each beam lattice, the upper surface and the lower surface of the hyperbolic arch shell are in hyperbolic arches, and the edges of the hyperbolic arch shell are respectively fixedly connected with the side surfaces of the four beams; the filling layer covers the hyperbolic arch shell, and the top surface of the filling layer is flat. The invention fully utilizes the superior compression performance of the concrete, avoids the poor tensile property of the concrete and can save a large amount of steel bars and concrete; the double-curved arch shell evenly distributes and transmits load to the frame, so that the stress of the frame structure is balanced, the edge of the double-curved arch shell is fixed by utilizing the side of the frame beam, and the bearing capacity of the double-curved arch shell is improved.
Description
Technical Field
The invention relates to a floor system structure with hyperbolic arch shells and a construction method thereof, belonging to the technical field of building structures.
Background
The tensile strength of the concrete is only 1/10-1/20 of the compressive strength, so that the concrete member is always expected to exert the compressive performance to the maximum extent and avoid the tensile stress when the concrete member is designed. Arch bridges are the most common way in the structural design of bridges, whereas arch-type structures are rarely seen in the design of residential buildings.
Brick arch floor slabs have been used for brick masonry houses for decades, arch ties are built on the tops of the next floor by bricks, and the upper parts of the arch ties are filled and used as floor slabs of the previous floor, so that the brick arch floor slabs are eliminated along with the improvement of economy and seismic requirements of reinforced concrete.
At present, the reinforced concrete floor structure widely adopted at the span of 6-12 meters is a beam plate structure, wherein the comprehensive economy of the haunched large-plate floor structure is better. But the vertical load is born to the ability of bending of beam slab structure backup plate and secondary beam, and the compressive capacity of concrete is not fully exerted to this kind of structure, and concrete and reinforcing bar quantity are great.
Patent document 1 (publication number CN 103046769A) discloses a building with hyperbolic arch floor and energy-saving wall, wherein the floor is a concrete integral floor with four sides thick, middle thin, upper flat and lower hyperbolic arch, which conforms to the stress mechanism of flat slab; when the floor slab is uniformly loaded vertically, the upper reinforcing steel bars of the slab at the thickened part of the periphery of the column of the floor slab are pulled, the lower concrete is pressed, and the pulling force is balanced with the pressure, so that the floor slab has no side thrust to the peripheral members; when the floor slab is in the span, the concrete on the upper part of the slab is compressed, and the steel bars on the lower part are pulled; and the floor slab is an integral plate, and the reinforcing steel bars on the upper part of the plate are in deformation coordination with the concrete on the lower part under compression. The building disclosed in patent document 1 has the disadvantages that the building is essentially a slab-column structure, similar to an armpit large slab floor structure, the bending capability of the backup slab bears the vertical load, the compression capability of the concrete is not fully exerted, and the consumption of the concrete and the steel bars is large.
Disclosure of Invention
Aiming at the problem that the haunched large plate does not give full play to the characteristic of high compressive strength of concrete in the prior art, the invention provides a floor structure with a hyperbolic arch shell and a construction method thereof in order to improve the stress condition of the floor structure, reduce the using amount of reinforcing steel bars and concrete and improve the bearing capacity. The specific technical scheme is as follows.
A floor system structure with a double-curved arch shell is characterized by comprising upright columns, beams, a filling layer and the double-curved arch shell, wherein the upright columns and the beams form a frame, the beams are distributed along the transverse direction and the longitudinal direction, four beams connected end to end form a beam lattice, the double-curved arch shell is arranged in each beam lattice, the upper surface and the lower surface of the double-curved arch shell are both in a double-curved arch shape, and the edges of the double-curved arch shell are respectively fixedly connected with the side surfaces of the four beams; the filling layer covers the hyperbolic arch shell, and the top surface of the filling layer is flat.
By adopting the technical scheme, the top of the double-curved arch shell is positioned in the center of the beam lattice, the double-curved arch shell can convert vertical load into pressure on the shell section and transmit the pressure to the beam, and the double-curved arch shell only bears compressive stress but not tensile stress on the whole; the peripheral edges of the double-curved arch shells are firmly connected with the beams, the concrete frame beams can limit the displacement of the edges of the double-curved arch shells, and the frame beams in the mathematical model are equivalent to supports for fixing the edges of the double-curved arch shells, so that the vertical bearing capacity of the double-curved arch shells can be greatly improved, and the using amount of concrete and reinforcing steel bars can be saved. The upper portion of hyperbolic arch shell is the filling layer, and the filling layer plays the effect of vertical load evenly distributed to hyperbolic arch shell, prevents the stress concentration condition. The hyperbolic arched shell is arched in both the transverse direction and the longitudinal direction, is not required to have the same curvature on any transverse or longitudinal section, and can be a hyperbolic paraboloid torsional shell, a spherical shell and the like.
Furthermore, the filling layer is also provided with a panel, and the panel plays a role in meeting use requirements, for example, when a vehicle is loaded, the panel uniformly transmits the vertical pressure to the filling layer.
Furthermore, the end parts of the reinforcing steel bars in the double-curved arch shell are anchored in the beams, transverse and longitudinal staggered reinforcing steel bars can be arranged in the double-curved arch shell, the reinforcing steel bars are also arched, and the two end parts of the reinforcing steel bars are both anchored in the two beams, so that the connection reliability of the double-curved arch shell and the beams can be improved.
Furthermore, the thickness of the middle of the double-arch shell is smaller than that of the edge, so that the stress condition of the double-arch shell is met, and the consumption of concrete is reduced.
Furthermore, convex stiffening ribs are fixedly arranged on the lower surface of the hyperbolic arch shell, extend along the transverse direction and the longitudinal direction and are in a grid shape; the arrangement of the stiffening ribs is beneficial to further improving the bearing capacity of the double-curved arch shell; preferably, the bottom surface of the stiffening rib is horizontal, and a prestressed steel bar is arranged in the stiffening rib.
Further, the filling layer is made of at least one of slag, expanded perlite, aerated concrete, ceramsite concrete, sand, building waste residues and plain concrete.
Further, the hyperbolic arch shell is made of reinforced concrete, fiber concrete or plain concrete.
Further, the panel is made of reinforced concrete, fiber concrete, plain concrete or sprayed concrete.
Based on the same invention concept, the invention also relates to a construction method of the floor structure with the double-arch shell, which mainly comprises the following steps:
1) supporting a formwork for the column and pouring the column;
2) erecting a formwork for the beam and the hyperbolic arch shell, arranging a reinforcement cage of the beam and reinforcements of the hyperbolic arch shell, and extending the ends of the reinforcements of the hyperbolic arch shell into the beam;
3) pouring beams and hyperbolic arch shells;
4) laying a filling layer;
5) and binding the steel bars of the panel and pouring the panel.
Compared with the existing floor structure, the floor structure has the following beneficial effects.
The invention gives play to the characteristic that the bidirectional (transverse and longitudinal) section is pressed when the concrete hyperbolic arch shell bears vertical load, and the load is uniformly distributed and transmitted to the frame, so that the stress of the frame structure is balanced, thereby ensuring the economy of the frame design.
The invention gives full play to the vertical load transmitted by the hyperbolic arch shell in a pressure mode, fully utilizes the superior compression performance of the concrete and avoids the poor tensile property of the concrete, thereby saving a large amount of steel bars and concrete.
The invention utilizes the lateral bending rigidity and the bearing capacity of the bidirectional (transverse and longitudinal) concrete frame beam, and utilizes the frame beam side to fix the edge of the hyperbolic arch shell, thereby improving the bearing capacity of the hyperbolic arch shell.
The invention utilizes the gap between the hyperbolic arch shell and the floor plane to fill the light material and arranges the panel to disperse the concentrated load on the floor, thereby playing the role of protecting the hyperbolic arch shell and reducing the local bending moment, and further reducing the thickness of the hyperbolic arch shell.
The concrete double-curved arch shell can adopt a recyclable integral template, and the filling of light materials at the top and the manufacturing of the panel are common projects without special equipment and processes after the construction of the double-curved arch shell is finished, so the construction cost is low and the construction speed is high.
Drawings
FIG. 1 is a top plan view of a floor structure of the present invention;
fig. 2 is a sectional view a-a in fig. 1.
In the figure: the structure comprises a column 1, a beam 2, a filling layer 3, a hyperbolic arch shell 4, a panel 5, a reinforcing steel bar 6, a transverse X and a longitudinal Y.
Detailed Description
The present invention is described in further detail below with reference to the attached drawing figures.
Referring to fig. 1-2, the floor structure with the hyperbolic arch shell comprises an upright post 1, a beam 2, a filling layer 3 and a hyperbolic arch shell 4, wherein the upright post 1 and the beam 2 form a frame, the beam 2 is distributed along two directions of a transverse direction X and a longitudinal direction Y, the four beams 2 connected end to end form a beam lattice, the hyperbolic arch shell 4 is arranged in each beam lattice, the upper surface and the lower surface of the hyperbolic arch shell 4 are both hyperbolic arches, and the edge of the hyperbolic arch shell 4 is respectively fixedly connected with the side surfaces of the four beams 2; the filling layer 3 covers the hyperbolic arch shell 4, and the top surface of the filling layer 3 is flat. Preferably, a face plate 5 is also provided on the filling layer 3.
The reinforcing steel bars 6 in the double-curved arch shell 4 are transversely and longitudinally arranged in a staggered mode, the reinforcing steel bars 6 are arched, and two end portions of the reinforcing steel bars 6 are anchored in the two beams 2, so that the connection reliability of the double-curved arch shell and the beams can be improved.
Preferably, the thickness of the middle of the hyperbolic arch shell 4 is smaller than that of the edge, which accords with the stress condition of the hyperbolic arch shell and is beneficial to reducing the consumption of concrete.
Preferably, the lower surface of the hyperbolic dome shell 4 is fixedly provided with convex stiffening ribs (not shown), and the stiffening ribs extend along the transverse direction and the longitudinal direction and are in a grid shape. Preferably, the bottom surface of the stiffening rib is horizontal, and the stiffening rib is internally provided with prestressed reinforcement.
The material adopted by the filling layer 3 comprises at least one of slag, expanded perlite, aerated concrete, ceramsite concrete, sand, building waste residue and plain concrete, and the requirement of local pressure checking calculation is met.
The hyperbolic arch shell 4 is made of reinforced concrete, fiber concrete or plain concrete.
The panel 5 is made of reinforced concrete, fiber concrete, plain concrete or asphalt concrete, and the concrete strength of the panel 5 meets the requirement of local pressure checking calculation and has a certain waterproof function.
The construction method of the floor system structure with the double-arch shell mainly comprises the following steps:
1) erecting a formwork for the upright column, and pouring the upright column 1; the upright posts 1 are arranged at intervals along the transverse X direction and the longitudinal Y direction;
2) erecting a formwork for the beam 2 and the double-curved arch shell 4, arranging a reinforcement cage (not shown) of the beam 2 and reinforcements 6 of the double-curved arch shell 4, wherein the end parts of the reinforcements 6 of the double-curved arch shell 4 extend into the beam 2; the template of the double-curved arch shell 4 can adopt a reusable integral template;
3) concrete of the pouring beam 2 and the hyperbolic arch shell 4;
4) laying a filling layer 3;
5) and binding the steel bars of the panel 5 and pouring concrete of the panel.
The floor structure of the invention utilizes the stress characteristic of the concrete double-curved arch shell 4 to resist the vertical pressure of the floor, the double-curved arch shell 4 bears the vertical pressure of the floor, and the strict restriction of the beam lattices on the periphery of the double-curved arch shell 4 ensures the good working performance of the double-curved arch shell 4. The force transmission process is as follows: the vertical external load borne by the floor system acts on the panel 5, the panel 5 transmits the load to the light material of the filling layer 3, the filling layer 3 transmits the pressure to the double-curved arch shell 4 in a dispersing way, and the double-curved arch shell 4 transmits the vertical load to the peripheral beam 2 through integral compression. Because the beam 2 has enough bearing capacity for the pressure transmitted from the double-curved arch shell 4 and the horizontal pressure direction of the double-curved arch shells 4 on the two sides of the beam 2 is reversed, the beam 2 cannot generate horizontal displacement, and the edge of the double-curved arch shell 4 can be kept approximately fixed. The entire doubly curved dome 4 acts in a manner that is subject to compressive stress.
The embodiments of the present invention are described above with reference to the drawings, and the embodiments and features of the embodiments of the present invention may be combined with each other without conflict. The present invention is not limited to the above-described embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many modifications without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. The floor system structure with the double-curved arch shells is characterized by comprising upright columns (1), beams (2), a filling layer (3) and the double-curved arch shells (4), wherein the upright columns (1) and the beams (2) form a frame, the beams (2) are distributed along the transverse direction and the longitudinal direction, four beams (2) which are connected end to end form a beam lattice, the double-curved arch shells (4) are arranged in each beam lattice, the upper surfaces and the lower surfaces of the double-curved arch shells (4) are in double-curved arch shapes, and the edges of the double-curved arch shells (4) are fixedly connected with the side surfaces of the four beams (2) respectively; the filling layer (3) covers the double-curved arch shell (4), and the top surface of the filling layer (3) is flat.
2. Floor construction with double dome shells according to claim 1, characterized in that said filling layer (3) is further provided with panels (5).
3. Floor construction with double arched shells, according to claim 1, characterized in that the ends of the steel reinforcement inside the double arched shells (4) are anchored inside the beams (2).
4. Floor construction with double dome shells according to claim 1, characterized in that the thickness of the double dome shells (4) is smaller in the middle than at the edges.
5. Floor structure with double arch shells according to claim 1, characterized in that the lower surface of the double arch shell (4) is fixedly provided with protruding stiffening ribs extending in the transverse and longitudinal directions in a grid shape.
6. The floor system structure with the double-curved arch shell as claimed in claim 5, wherein the bottom surface of the stiffening rib is horizontal, and the pre-stressed steel bar is arranged in the stiffening rib.
7. The floor system structure with the hyperbolic arch shell as claimed in claim 1, wherein the material adopted by the filling layer (3) comprises at least one of slag, expanded perlite, aerated concrete, ceramsite concrete, sand, building waste residue and plain concrete.
8. Floor system structure with hyperbolic arch shell as claimed in claim 1, wherein said hyperbolic arch shell (4) is made of reinforced concrete, fiber concrete or plain concrete.
9. Floor structure with hyperbolic arch shell as claimed in claim 2, characterized in that said panels (5) are made of reinforced concrete, fiber concrete, plain concrete or shotcrete.
10. A construction method of a floor system structure with hyperbolic dome shell as claimed in any one of claims 1-9, mainly comprising the steps of:
1) erecting a formwork for the upright column, and pouring the upright column (1);
2) erecting a formwork for the beam (2) and the hyperbolic arch shell (4), arranging a reinforcement cage of the beam (2) and reinforcements of the hyperbolic arch shell (4), and extending the ends of the reinforcements of the hyperbolic arch shell (4) into the beam (2);
3) the device comprises a pouring beam (2) and a double-curved arch shell (4);
4) laying a filling layer (3);
5) and binding the steel bars of the panel and pouring the panel.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2020105802023 | 2020-06-23 | ||
| CN202010580202 | 2020-06-23 |
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| Publication Number | Publication Date |
|---|---|
| CN112064852A true CN112064852A (en) | 2020-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010856943.XA Pending CN112064852A (en) | 2020-06-23 | 2020-08-24 | Floor system structure with double-curved arch shell and construction method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114164938A (en) * | 2021-09-23 | 2022-03-11 | 郑州辉昂装饰设计工程有限公司 | Self-balancing assembly type frame thin-shell structure system and construction method thereof |
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|---|---|---|---|---|
| CN1042208A (en) * | 1989-09-21 | 1990-05-16 | 田明安 | With outstanding arched floor and the arch floorslab block method that is built into of concrete block |
| JPH0325105A (en) * | 1989-06-21 | 1991-02-01 | Ishikawajima Harima Heavy Ind Co Ltd | Reinforcing method for concrete slab |
| JPH07286393A (en) * | 1995-04-10 | 1995-10-31 | Hokoku Juki Kk | Slab construction method using arched slab board |
| EP0947639A1 (en) * | 1998-04-03 | 1999-10-06 | Peter Adler | Method for constructing a floor as well as a modular vault system for implementing the method |
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| CN202483047U (en) * | 2012-02-29 | 2012-10-10 | 叶香雄 | Arched floor |
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-
2020
- 2020-08-24 CN CN202010856943.XA patent/CN112064852A/en active Pending
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| JPH0325105A (en) * | 1989-06-21 | 1991-02-01 | Ishikawajima Harima Heavy Ind Co Ltd | Reinforcing method for concrete slab |
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| JPH07286393A (en) * | 1995-04-10 | 1995-10-31 | Hokoku Juki Kk | Slab construction method using arched slab board |
| EP0947639A1 (en) * | 1998-04-03 | 1999-10-06 | Peter Adler | Method for constructing a floor as well as a modular vault system for implementing the method |
| JP2001214563A (en) * | 2000-02-01 | 2001-08-10 | Iwane Kenkyusho:Kk | Gravity deflection correcting method in construction structure material |
| JP2002339494A (en) * | 2001-05-14 | 2002-11-27 | Shimizu Corp | Large-span floor slab |
| CN1816667A (en) * | 2003-05-02 | 2006-08-09 | D·W·鲍威尔 | Method and system for prefabricated construction |
| CN202265926U (en) * | 2011-06-29 | 2012-06-06 | 源一建筑科技(上海)有限公司 | Archy floorslab built by building blocks |
| CN103046769A (en) * | 2011-10-11 | 2013-04-17 | 丁文斗 | High-cost-performance building technology with double-curvature-arch floors and energy-saving walls |
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Non-Patent Citations (1)
| Title |
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| 沈阳建筑工程学院: "《二级注册建筑师考试必读》", 31 January 1989, 中国建筑工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114164938A (en) * | 2021-09-23 | 2022-03-11 | 郑州辉昂装饰设计工程有限公司 | Self-balancing assembly type frame thin-shell structure system and construction method thereof |
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