Bidirectional reinforced concrete dense rib beam floor system structure with holes in column caps and beams and building

Abstract

The invention discloses a two-way reinforced concrete dense rib beam floor system structure with holes reserved in column caps and beams and a building. The two-way reinforced concrete dense rib beam floor system structure comprises frame columns, the column caps, the frame beams, secondary beams and floor slabs. The plurality of frame columns are vertically arranged on the floor; the column cap is of a columnar structure, the upper surface and the lower surface of the column cap are parallel, and the height of the column cap is set according to requirements. The column cap is arranged at the top of the frame column, the column cap and the frame column are integrally poured, the cross section of the column cap is larger than the cross section area of the frame column, and the frame column is located within the range of the column cap on the projection of the horizontal plane; the frame beams are connected between every two adjacent column caps, each secondary beam comprises a first beam body and a second beam body which are arranged in a staggered mode, and the first beam bodies and the second beam bodies are supported between the frame beams; the column caps, the frame beams and the secondary beams are arranged at the same height. By reducing the span of the frame beam, the height of the frame beam is reduced or the bearing capacity of the frame beam is improved, so that the problems that the construction cost of earthwork in an excavation area is high, the economical efficiency and the applicability of a conventional structure are poor, and the contradiction exists between the strong load capacity and the clear height increase are effectively solved.

Description

Technical Field

[0001] The invention relates to the technical field of building engineering, and in particular to a bidirectional reinforced concrete multi-ribbed beam floor structure and a building with holes left on column caps and beams. Background Art

[0002] Commonly used structural systems include beam-slab structural systems and beamless floor structural systems. This type of structural system is simple in layout and design and is the most widely used and common structural system in current structural design. However, for some buildings under relatively special conditions, such as underground buildings in excavation areas, the use of the above existing structural systems requires increasing the depth of excavation and the cost of construction projects; for example, in some buildings with large loads and high net height requirements, in order to meet the load requirements, the thickness of the floor slab or beam needs to be increased, resulting in the inability to simultaneously take into account the requirements of floor net height and load. Summary of the invention

[0003] In view of the above-mentioned defects of the prior art, a bidirectional reinforced concrete dense-ribbed beam floor structure and building with holes in column caps and beams is provided, which effectively solves the pain points of high earthwork cost in the excavation area, poor economy and applicability of conventional structures, and the contradiction between strong load-bearing capacity and increased net height.

[0004] The technical solution adopted by the present invention to solve the above technical problems is:

[0005] In the first aspect, a bidirectional reinforced concrete multi-ribbed beam floor structure with holes in column caps and beams is characterized by comprising frame columns, column caps, frame beams, secondary beams, and floor slabs;

[0006] A number of frame columns are vertically arranged on the floor; the column cap adopts a columnar structure, the upper surface and the lower surface of the column cap are parallel, and the height of the column cap is set according to demand; the column cap is arranged on the top of the frame column, the column cap and the frame column are cast in one piece, the cross-section of the column cap is larger than the cross-section area of ​​the frame column, and the frame column is located within the range of the column cap in the horizontal plane projection; the frame beam is connected between two adjacent column caps, the secondary beam includes a first beam body and a second beam body arranged in an alternating manner, and the first beam body and the second beam body are supported between the frame beams; the column caps, the frame beams, and the secondary beams are arranged at the same height.

[0007] According to the above technical solution, a plurality of reserved holes are provided at intervals on the frame beam and the secondary beam, and all the reserved holes together constitute a plurality of hole groups that conform to the layout of electromechanical pipelines.

[0008] According to the above technical solution, the column cap adopts a rectangular parallelepiped structure; for the intermediate frame columns without special requirements, the center of the column cap coincides with the center line of the frame column, the frame beam is arranged around the column cap, and is cast integrally with the column cap; for the intermediate frame columns with special requirements, the relative position of the column cap and the frame column is determined according to the requirements;

[0009] For frame columns at the edge, the frame columns and column caps are flush with the faces close to the side walls;

[0010] For framing columns at corners, the framing column and column cap are located flush on both sides close to the wall.

[0011] According to the above technical solution, when the column cap adopts a rectangular structure, the side length of the column cap is determined according to the usage scenario and the distance between adjacent frame columns.

[0012] According to the above technical solution, the side length of the column cap is 1 / 3.5 to 1 / 4.0 of the distance between adjacent frame columns, and the height of the column cap is 1 / 13 to 1 / 15 of the distance between adjacent column caps.

[0013] According to the above technical solution, in non-heavy load scenarios, the distance between two adjacent frame columns is less than 12m, and the height range of the column cap is controlled within 700mm;

[0014] In heavy-load usage scenarios, in areas where the soil thickness on the top of the floor is less than 1m or there is no fire truck, the distance between two adjacent frame columns is less than 12m, and the height range of the column cap is controlled within 950mm.

[0015] According to the above technical solution, the reserved hole is located at the center of the beam height of the frame beam or secondary beam, and must avoid the stirrup reinforcement densification area of ​​the frame beam or secondary beam; and the height of the reserved hole is not greater than 40% of the column cap height.

[0016] According to the above technical solution, the first beam body and the second beam body are arranged obliquely, or the first beam body and the second beam body are arranged perpendicular to each other.

[0017] According to the above technical scheme, the cross-section of the column cap is square, and the adjacent surfaces of two adjacent column caps are arranged in parallel; the frame beam is arranged perpendicular to the adjacent surfaces of the two column caps, and the end of the frame beam is cast integrally with the column caps; the first beam body and the second beam body of the secondary beam are vertically connected between multiple parallel frame beams, and are cast integrally with the frame beams.

[0018] According to the above technical solution, ordinary frame beams are replaced by prestressed beams.

[0019] In a second aspect, a building adopts a bidirectional reinforced concrete multi-ribbed beam floor structure with column caps and holes left on beams as described above.

[0020] The present invention has the following beneficial effects:

[0021] 1. In the prior art, the frame beam is directly connected between two adjacent frame columns; in this embodiment, a column cap integrally cast with the frame column is provided on the top of the frame column, and the frame beam is connected between the column caps on the top of the frame column. Due to the provision of the column cap, the span of the frame beam between two adjacent frame columns can be effectively reduced under the condition of the same frame column spacing. Since the column cap has high rigidity and small deformation, the column cap area structure has a rigid domain effect, making full use of the characteristics of similar bidirectional column spacing, uniform force, and large rigidity of the column cap; effectively reducing the span of the frame beam and improving the strength of the frame beam connection on the frame column.

[0022] Based on this, firstly, while ensuring the same floor net height (height of the space used by one floor) as the prior art, the height of the column caps and frame beams can be reduced, thereby achieving the purpose of reducing the overall floor height (height of the space used by one floor + height occupied by the building structure); based on the effect of reducing the overall floor height, the number of floors can be increased when the overall building height is constant. This effect can also reduce the excavation depth of the foundation pit while ensuring the same floor net height during construction in the excavation area; it can effectively reduce construction costs and meet the construction function effect.

[0023] Or while ensuring the same overall floor height as the existing technology, the required height of the frame beam can be reduced, thereby increasing the net height of the floor and improving the use effect of the building; it can also effectively reduce the amount of steel used in the structure, with good economic and technical indicators

[0024] Secondly, while ensuring the same clear height and frame beam height as the existing structure, the reduced span of the frame beam can increase the load weight of the top floor slab to meet the needs of some applicable scenarios that require heavy loads, such as the driving area for fire trucks.

[0025] Finally, column caps are used as middle pieces to connect frame beams and frame columns, which has a simple structure and is easy to construct.

[0026] 2. The reserved holes are arranged neatly, the main structure is completely exposed, and the building ceiling is eliminated, which effectively increases the net height and improves the economic efficiency of the structure. In addition, reserved holes are set up, and a large number of equipment pipes pass through the beams. The holes are arranged neatly and regularly, and the building appearance and user experience are excellent.

[0027] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. The specific implementation of the present invention is given in detail by the following embodiments and their accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings described herein are used to provide further understanding of the present invention and constitute a part of this application. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0029] Figure 1 It is a structural schematic diagram of an embodiment provided by the present invention;

[0030] Figure 2 is a top view of an embodiment provided by the present invention;

[0031] Figure 3 is a front cross-sectional view of an embodiment provided by the present invention;

[0032] In the figure, 1. frame column; 2. column cap; 3. frame beam; 4. secondary beam; 5. reserved hole. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-3 The principles and features of the present invention are described, and the examples are only used to explain the present invention and are not used to limit the scope of the present invention. In the following paragraphs, the present invention is described in more detail by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer according to the following description and claims. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to facilitate and clearly assist in explaining the purpose of the embodiments of the present invention.

[0034] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0036] Reference Figure 1 to Figure 3 As shown, the present invention provides a bidirectional reinforced concrete multi-ribbed beam floor structure with holes left on column caps and beams.

[0037] Example 1

[0038] It includes a frame column 1, a column cap 2, a frame beam 3, a secondary beam 4, and a floor slab;

[0039] A number of frame columns are vertically arranged on the floor; the column cap adopts a columnar structure, the upper surface and the lower surface of the column cap are parallel, and the height of the column cap is set according to demand; the column cap is arranged on the top of the frame column, the column cap and the frame column are cast in one piece, the cross-section of the column cap is larger than the cross-section area of ​​the frame column, and the frame column is located within the range of the column cap in the horizontal plane projection; the frame beam is connected between two adjacent column caps, the secondary beam includes a first beam body and a second beam body arranged in an alternating manner, and the first beam body and the second beam body are supported between the frame beams; the column caps, the frame beams, and the secondary beams are arranged at the same height.

[0040] In the prior art, the frame beam is directly connected between two adjacent frame columns; in this embodiment, by setting a column cap integrally cast with the frame column on the top of the frame column, the frame beam is connected between the column caps on the top of the frame column. Due to the setting of the column cap, the span of the frame beam between two adjacent frame columns can be effectively reduced under the condition of the same frame column spacing. Since the column cap has high rigidity and small deformation, the column cap area structure plays a rigid domain effect, making full use of the characteristics of similar bidirectional column spacing and uniform force and large rigidity of the column cap; effectively reducing the span of the frame beam and improving the strength of the frame beam connection on the frame column.

[0041] In Example 1, preferably, the column cap adopts a rectangular parallelepiped structure; for the intermediate frame column without special requirements, the center of the column cap coincides with the center line of the frame column, and the frame beam is arranged around the column cap, similar to forming a hidden beam in the column cap, and cast integrally with the column cap; for the intermediate frame column with special requirements, the relative position of the column cap and the frame column is determined according to the requirements;

[0042] For the frame columns at the edge, the frame columns and the column caps are flush with the surface close to the side wall; the frame columns and the column caps are attached to the side of the wall together.

[0043] For the frame columns at the corners, the frame columns and the column caps are flush with the two sides close to the wall, and the frame columns and the column caps are attached to the two side surfaces of the wall together.

[0044] In Embodiment 1, the first beam body and the second beam body are arranged obliquely, or the first beam body and the second beam body are arranged perpendicular to each other.

[0045] In Example 1, preferably, the cross-section of the column cap is square (other shapes may also be used), and the adjacent surfaces of two adjacent column caps are arranged in parallel; the frame beam is arranged perpendicularly to the adjacent surfaces of the two column caps, and the end of the frame beam is cast integrally with the column cap; the first beam body and the second beam body of the secondary beam are vertically connected between multiple parallel frame beams, and are cast integrally with the frame beam. The modules of each structural component are regular, and flow-line operation can be carried out during construction with a high template reuse rate, which not only effectively shortens the construction period but also saves the project cost, and has good economy. The floor slab adopts bidirectional equal-height dense-rib beams, and all frame beams, secondary beams and column caps are of the same height, with uniform spacing, simple and beautiful appearance, which meets the requirements of architectural rhythm and form, eliminates the building ceiling, and the structure is completely exposed, with good economic and social benefits.

[0046] In Example 1, in the case where the column cap adopts a rectangular parallelepiped structure (the cross section of the column cap is a square, and the thickness is set according to the requirements), the side length of the column cap is determined according to the usage scenario and the spacing between adjacent frame columns. Among them, the side length of the column cap is 1 / 3.5 to 1 / 4.0 of the spacing between adjacent frame columns, and the height of the column cap is 1 / 13 to 1 / 15 of the spacing between adjacent column caps.

[0047] In non-heavy-load scenarios, the distance between two adjacent frame columns is less than 12m, and the height range of the column cap can be controlled within 700mm;

[0048] In heavy-load usage scenarios, such as when the soil thickness on the top of the floor is less than 1m or in areas without fire trucks, the distance between two adjacent frame columns is less than 12m, and the height range of the column cap can be controlled within 950mm.

[0049] In Example 1, ordinary frame beams are replaced with prestressed beams to meet higher heavy-load requirements, or to effectively reduce the beam height and increase the indoor net height; this structural system has good applicability to floors of various building functions. By adopting this structural system, the steel consumption of the structure can be effectively reduced, and it has good economic and technical indicators.

[0050] Based on Example 1,

[0051] First, while ensuring the same floor net height (height of the space used by one floor) as the prior art, the height of the column caps and frame beams can be reduced, thereby achieving the purpose of reducing the overall floor height (height of the space used by one floor + height occupied by the building structure); based on the effect of reducing the overall floor height, the number of floors can be increased when the overall building height is constant. This effect can also reduce the excavation depth of the foundation pit while ensuring the same floor net height during construction in the excavation area; it can effectively reduce construction costs and meet the construction function effect.

[0052] Or while ensuring the same overall floor height as the existing technology, the required height of the frame beam can be reduced, thereby increasing the net height of the floor and improving the use effect of the building; it can also effectively reduce the amount of steel used in the structure, with good economic and technical indicators

[0053] Secondly, while ensuring the same clear height and frame beam height as the existing structure, the reduced span of the frame beam can increase the load weight of the top floor slab to meet the needs of some applicable scenarios that require heavy loads, such as the driving area for fire trucks.

[0054] Finally, column caps are used as middle pieces to connect frame beams and frame columns, which has a simple structure and is easy to construct.

[0055] Example 2

[0056] The structure and principle of Example 2 are similar to those of Example 1, except that: multiple reserved holes 5 are provided at intervals on the frame beam and the secondary beam, and all the reserved holes together constitute multiple groups of holes that conform to the layout of mechanical and electrical pipelines. In this embodiment, the reserved holes are arranged neatly, the main structure is completely exposed, the building ceiling is eliminated, the net height is effectively increased, and the economic efficiency of the structure is improved. In addition, the reserved holes are set, a large number of equipment pipelines pass through the beams, the openings are arranged neatly and regularly, and the building appearance and user experience are excellent.

[0057] Preferably, the reserved hole is located at the center of the beam height of the frame beam or the secondary beam, avoiding the stirrup densification area of ​​the frame beam or the secondary beam; and the height of the reserved hole is not greater than 40% of the column cap height.

[0058] The present invention also provides a building, which adopts any of the above-mentioned bidirectional reinforced concrete multi-ribbed beam floor structures with column caps and holes left on the beams.

[0059] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any ordinary technician in the industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. A bidirectional reinforced concrete multi-ribbed beam floor structure with holes in column caps and beams, characterized by: Including frame columns, column caps, frame beams, secondary beams, and floor slabs; A number of frame columns are vertically arranged on the floor; the column cap adopts a columnar structure, the upper surface and the lower surface of the column cap are parallel, and the height of the column cap is set according to demand; the column cap is arranged on the top of the frame column, the column cap and the frame column are cast in one piece, the cross-section of the column cap is larger than the cross-section area of ​​the frame column, and the frame column is located within the range of the column cap in the horizontal plane projection; the frame beam is connected between two adjacent column caps, the secondary beam includes a first beam body and a second beam body arranged in an alternating manner, and the first beam body and the second beam body are supported between the frame beams; the column caps, the frame beams, and the secondary beams are arranged at the same height.

2. The bidirectional reinforced concrete multi-ribbed beam floor structure with holes in column caps and beams according to claim 1 is characterized in that: A plurality of reserved holes are arranged at intervals on the frame beam and the secondary beam, and all the reserved holes together constitute a plurality of hole groups that conform to the layout of mechanical and electrical professional pipelines.

3. The bidirectional reinforced concrete multi-ribbed beam floor structure with column caps and holes on beams according to claim 1 or 2, characterized in that: The column cap adopts a rectangular structure; for the intermediate frame columns without special requirements, the center of the column cap coincides with the center line of the frame column, and the frame beam is arranged around the column cap and cast integrally with the column cap; for the intermediate frame columns with special requirements, the relative position of the column cap and the frame column is determined according to the requirements; For frame columns at the edge, the frame columns and column caps are flush with the faces close to the side walls; For framing columns at corners, the framing column and column cap are located flush on both sides close to the wall.

4. The bidirectional reinforced concrete multi-ribbed beam floor structure with holes in column caps and beams according to claim 1 is characterized in that: When the column cap adopts a rectangular structure, the side length of the column cap is determined according to the usage scenario and the distance between adjacent frame columns.

5. The bidirectional reinforced concrete multi-ribbed beam floor structure with holes in column caps and beams according to claim 4 is characterized in that: The side length of the column cap is 1 / 3.5 to 1 / 4.0 of the distance between adjacent frame columns, and the height of the column cap is 1 / 13 to 1 / 15 of the distance between adjacent column caps.

6. The bidirectional reinforced concrete multi-ribbed beam floor structure with column caps and holes on beams according to claim 5 is characterized in that: In non-heavy-load scenarios, the distance between two adjacent frame columns is less than 12m, and the height range of the column cap is controlled within 700mm; In heavy-load usage scenarios, in areas where the soil thickness on the top of the floor is less than 1m or there is no fire truck, the distance between two adjacent frame columns is less than 12m, and the height range of the column cap is controlled within 950mm.

7. The bidirectional reinforced concrete multi-ribbed beam floor structure with holes in column caps and beams according to claim 2 is characterized in that: The reserved hole is located at the center of the beam height of the frame beam or secondary beam, and must avoid the stirrup reinforcement density area of ​​the frame beam or secondary beam; and the height of the reserved hole shall not exceed 40% of the column cap height.

8. The bidirectional reinforced concrete multi-ribbed beam floor structure with holes in column caps and beams according to claim 1 is characterized in that: The first beam body and the second beam body are arranged obliquely, or the first beam body and the second beam body are arranged perpendicular to each other; the cross-section of the column cap is square, and the adjacent surfaces of two adjacent column caps are arranged parallel to each other; the frame beam is arranged perpendicular to the adjacent surfaces of the two column caps, and the end of the frame beam is cast integrally with the column caps; the first beam body and the second beam body of the secondary beam are vertically connected between multiple parallel frame beams, and are cast integrally with the frame beams.

9. The bidirectional reinforced concrete multi-ribbed beam floor structure with column caps and holes on beams according to claim 1, characterized in that: Replace ordinary frame beams with prestressed beams.

10. A building, characterized in that: A bidirectional reinforced concrete multi-ribbed beam floor structure with column caps and beam holes as described in any one of claims 1 to 9 is adopted.

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