CN215167179U - Fireproof separation structure between box girder layers - Google Patents
Fireproof separation structure between box girder layers Download PDFInfo
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- CN215167179U CN215167179U CN202120343117.5U CN202120343117U CN215167179U CN 215167179 U CN215167179 U CN 215167179U CN 202120343117 U CN202120343117 U CN 202120343117U CN 215167179 U CN215167179 U CN 215167179U
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Abstract
The utility model discloses a fireproof separation structure between box girder layers, which comprises a cantilever beam, a main girder and a fireproof separation structure, wherein the cantilever beam is used for being fixedly connected with the main girder and is positioned below the main girder; the box-type side beam is fixedly connected with the cantilever beam, is positioned at the end part of the main beam and is fixedly connected with the main beam; and the filling layer is positioned in the cavity of the box-type edge beam. Its advantage lies in, the utility model discloses a fire resistive construction adopts box boundary beam and built-in filling layer, and the incombustibility entity wall that turns over down along the structure outside as super high-rise building plays the fire prevention effect, and the end connection of box boundary beam and girder compares and turns over the entity wall construction under conventional concrete, and this technique need not to set up the steel pipe formwork, also need not to set up protective scaffolding in the building periphery. Construction procedures are reduced, and the construction period and the construction cost are saved; cantilever beam and girder fixed connection for support box boundary beam improves whole fire resistive construction's stability.
Description
Technical Field
The utility model relates to a steel and concrete integrated configuration technical field especially relate to a fire prevention partition structure between box roof beam layer.
Background
According to the technical requirement for enhancing the fireproof design of civil buildings with the building height of more than 250 m (trial) (issued in 2018, 4), a non-combustible solid wall with the height of not less than 1.5m is arranged between an opening on the outer wall and an opening on the lower layer of the building, and the height of the solid wall on a floor slab is not less than 0.6m (namely, the solid walls are required to be arranged on the upper part and the lower part of the edge of the floor slab). At present, in the industry of leading civilian super high-rise building steel frame construction more than most 250 meters, the floor adopts steel bar truss building carrier plate, need not the formwork when pouring concrete, and the conventional downward turning prevents that hot wall adopts reinforced concrete structure, need set up steel-pipe frame formwork and the peripheral scaffold frame protection of building when constructing this position, greatly influences construction period and safety, has also increased the cost simultaneously.
SUMMERY OF THE UTILITY MODEL
In order to overcome the not enough of prior art, the utility model aims to provide a fire prevention partition structure between box roof beam layer conveniently founds building outer wall and prevents hot wall.
The purpose of the utility model is realized by adopting the following technical scheme:
a fire separation structure between box beam layers comprises
The cantilever beam is used for being connected with the main beam and is positioned below the main beam;
the box-type side beam is fixedly connected with the cantilever beam, is positioned at the end part of the main beam and is fixedly connected with the main beam;
and the filling layer is positioned in the cavity of the box-type edge beam.
Preferably, the box-type side beam is provided with a stud which penetrates into the main beam from bottom to top; the box-type side beam is fixedly connected with the end part of the main beam through a bolt.
Preferably, the studs are divided into two groups and arranged at the upper end of the box-shaped edge beam side by side.
Preferably, the upper surface of box boundary beam is equipped with the grout hole, the grout hole with the girder intercommunication for pour into the filling layer into.
Preferably, the grouting holes comprise long holes, and two equidistant air holes are formed between every two adjacent long holes.
Preferably, the filling layer is made of concrete material.
Preferably, a stiffening plate is arranged in the box-shaped edge beam.
Preferably, the cantilever beam is of a steel frame structure and welded to the main beam, and the main beam is of a steel frame structure.
Preferably, the cantilever beam is an I-shaped plate, and the side surface of the cantilever beam is provided with a plurality of stiffening plates; and a plurality of stiffening plates are arranged between the main beam and the main beam.
Preferably, two positioning plates are arranged on one side, facing the cantilever beam, of the box-type side beam and respectively correspond to the upper end and the lower end of the cantilever beam; the positioning plate is fixedly connected with the cantilever beam in an abutting mode.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the utility model discloses a fire resistive construction adopts box boundary beam and built-in filling layer, and box boundary beam and filling layer constitute the fire prevention jointly and cut off, and as the incombustible entity wall that turns over under the super high-rise building outer edge structure, play the fire prevention effect, the end connection of box boundary beam and girder need not to set up the steel pipe formwork, also need not to set up protection scaffold frame in the building periphery. Construction procedures are reduced, and the construction period and the construction cost are saved; cantilever beam and girder fixed connection for support box boundary beam improves whole fire resistive construction's stability.
Drawings
Fig. 1 is a schematic structural view of a conventional flip down firewall in the related art;
fig. 2 is a schematic structural view of a fire protection structure according to an embodiment of the present invention;
fig. 3 is a schematic structural view of another angle of the fire protection structure according to the embodiment of the present invention.
In the figure: 1. a main beam; 2. a box-shaped edge beam; 21. a filling layer; 22. a stud; 23. positioning a plate; 24. a strip hole; 25. air holes are formed; 3. a stiffening plate; 4. a cantilever beam.
Detailed Description
The present invention will be described in greater detail hereinafter with reference to the accompanying drawings, in which the description of the invention is given by way of illustration and not of limitation, and in which, although specific embodiments of the invention have been described, the invention is not limited to these embodiments. The specific embodiments described are merely illustrative. The various embodiments may be combined with each other to form other embodiments not shown in the following description. The disclosure is also intended to cover alternatives, modifications, and equivalents. Furthermore, in the following description, numerous specific details are set forth in order to provide a thorough understanding of the disclosed technology to those of ordinary skill in the art. However, embodiments may be practiced without these specific details.
In the description of the present invention, it should be noted that, for the orientation words, if there are terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and positional relationship indicated are based on the orientation or positional relationship shown in the drawings, and only for the convenience of describing the present invention and simplifying the description, it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and not be construed as limiting the specific scope of the present invention.
Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and in the description of the invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "assembled", "connected", and "connected", if any, are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.
As shown in fig. 1, in the related art, most of civil super high-rise building steel frame structures with a height of more than 250 meters are adopted, the floor slab adopts a steel bar truss floor support plate, no formwork support is needed during concrete pouring, and according to the requirement of the civil fire protection design reinforcement technical requirement (trial implementation) that the building height is more than 250 meters, a non-combustible solid wall with a height of not less than 1.5m needs to be arranged between openings of the lower layer on the outer wall of the building, and the height on the floor slab should not be less than 0.6m, the conventional downward turning fire protection wall adopts a steel bar concrete structure, a reinforced concrete structure is added at the end part of the steel bar truss floor support plate, a steel pipe frame support formwork and a building peripheral scaffold protection need to be erected during construction of the part, construction period and safety are greatly influenced, and the manufacturing cost is increased.
Referring to fig. 2 and fig. 3, the utility model discloses fire prevention separation structure between box girder layer includes:
the cantilever beam 4 is used for being fixedly connected with the main beam 1 and is positioned below the main beam 1;
the box-type side beam 2 is fixedly connected with the cantilever beam 4, is positioned at the end part of the main beam 1 and is fixedly connected with the main beam 1;
and the filling layer 21 is positioned in the cavity of the box-type edge beam 2.
The fire resistive construction of this embodiment adopts box boundary beam 2 and embeds filling layer 21, and box boundary beam and filling layer constitute the fire prevention wall jointly, and as the incombustibility entity wall that turns over down along the structure outside super high-rise building, play the fire prevention effect, the end connection of box boundary beam 2 and girder 1 need not to set up the steel pipe formwork, also need not to set up protection scaffold frame in the building periphery. Construction procedures are reduced, and the construction period and the construction cost are saved; cantilever beam 4 and girder 1 fixed connection for support box boundary beam 2, improve whole fire resistive construction's stability.
The filling layer 21 can be placed in the box-type edge beam 2 in advance, or can be placed in the cavity after the end parts of the box-type edge beam 2 and the main beam 1 are fixedly connected, and the material of the filling layer 21 can be a conventional fireproof material or a concrete material. Preferably, the filling layer 21 is made of concrete material, the box-shaped edge beam 2 is used as a main body of fire-proof partition after concrete is poured in the box-shaped edge beam, and the box-shaped edge beam can be made of steel and combined with the concrete to form a fire-proof partition together.
Based on the above structure, the construction sequence of the fireproof structure of this embodiment may be:
1. the cantilever beam structure is processed and finished in a factory according to the requirements of a drawing and is conveyed to a construction site;
2. fixedly connecting the cantilever beam with a main beam of an original structure, and hoisting the cantilever beam to a tower peripheral structure;
3. hoisting the box-type side beam to the cantilever beam, and connecting and fixing the box-type side beam or welding and fixing the box-type side beam by a high-strength bolt; meanwhile, the main beam is fixedly connected with the end part of the main beam;
4. other conventional construction operations are performed, such as: installing the rest steel beams of the floor, laying a steel bar truss floor bearing plate, and then constructing studs; binding the floor steel bar
5. After the floor slab is qualified, pouring the floor slab concrete, and synchronously pouring the concrete (filling layer) in the box-type boundary beam;
6. and (4) finishing construction, wherein the box-type side beams (solid walls) filled with concrete and the solid walls above the floor slab jointly form fireproof separation between the super high-rise floors.
In a specific embodiment, the box-type side beam 2 is provided with a stud 22, and the stud 22 penetrates into the main beam 1 from bottom to top; the box-type side beam 2 is fixedly connected with the end part of the main beam 1 through a bolt. Based on the construction mode, the studs 22 are buried in the concrete after being injected into the main beam 1, and mainly have the functions of improving the shearing resistance of the fireproof structure and strengthening the combination degree of the box-type side beam 2 and the concrete in the main beam 1.
Preferably, in order to further enhance the combination degree of the box-type side beam 2 and the main beam 1, the plurality of studs 22 are divided into two groups and arranged at the upper end of the box-type side beam 2 side by side.
In a specific embodiment, as shown in fig. 3, a grouting hole is formed in the upper surface of the box-type edge beam 2, and the grouting hole is communicated with the main beam 1 and is used for injecting a filling layer 21, that is, when concrete is poured, the concrete enters the box-type edge beam 2 through the grouting hole to form the filling layer 21, and the filling layer 21 can also be applied when other condensable fireproof materials are used.
Preferably, as shown in fig. 3, the grouting holes include strip holes 24 and air holes 25, two equidistant air holes 25 are provided between two adjacent strip holes 24, the length of the strip hole 24 is long and is the main pouring channel of concrete, but the overlong strip hole 24 easily reduces the structural strength of the box-type edge beam 2, therefore, the strip holes 24 are arranged at intervals, and the air holes 25 can function as: when concrete is poured into the box-type side beam 2, air can overflow from the air holes 25 between the long holes 24; when the box-type side beams 2 are filled with concrete, part of the concrete can emerge from the air holes 25, and constructors can confirm that the parts among the strip holes 24 are also filled with the concrete; alternatively, a small amount of concrete may enter through the air holes 25 to fill the areas between the elongated holes 24 during filling.
Firewall height is not less than 1.5m, preferably, is equipped with stiffening plate 3 in the box boundary beam 2 for strengthen the structural strength of box boundary beam 2, simultaneously, box boundary beam 2 can adopt the steel construction, further strengthens box boundary beam 2's mechanical strength, satisfies the operation requirement and the structural stability of preventing the wall.
In a specific embodiment, the cantilever beam 4 is of a steel frame structure, and is welded on the main beam 1, and the main beam 1 is of a steel frame structure; the firmness of the fireproof structure is enhanced, and the stable structure of the building outer wall and the fireproof wall is ensured. More specifically, the cantilever beam 4 is an I-shaped plate, and the side surface is provided with a plurality of stiffening plates 3; a plurality of stiffening plates 3 are arranged between the main beam 1 and the main beam; the stiffening plate 3 is used for reinforcing key positions, and the concrete positions are processed and manufactured according to the actual building design after approval of the steel structure deepening graphic report design institute of cantilever beam.
In order to improve the installation efficiency of the box-type side beam 2, two positioning plates 23 are arranged on one side of the box-type side beam 2, which faces the cantilever beam 4, and respectively correspond to the upper end and the lower end of the cantilever beam 4; when installing box boundary beam 2, the segmentation is hoisted box boundary beam 2 to the girder steel of encorbelmenting on, and locating plate 23 and 4 butts of cantilever beam realize the primary importance, then weld or fix through high-strength bolted connection location portion.
After the technical requirement for enhancing the fireproof design of civil buildings with the building height of more than 250 meters (trial implementation) is implemented, a non-combustible solid wall with the height of not less than 1.5m is arranged between an opening on the outer wall and a lower layer of the building. After the fireproof structure of this embodiment is adopted, can avoid setting up steel pipe formwork and outer scaffold and can construct above-mentioned entity wall, reduce the construction process, practice thrift the time limit for a project, save construction cost.
The box boundary beam can be hoisted along with other steel beams of the floor, concrete is synchronously poured along with the concrete of the outer floor of the core barrel in the box boundary beam, and the construction is safe and reliable.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.
Claims (10)
1. A fire separation structure between box beam layers is characterized by comprising
The cantilever beam is used for being fixedly connected with the main beam and is positioned below the main beam;
the box-type side beam is fixedly connected with the cantilever beam, is positioned at the end part of the main beam and is fixedly connected with the main beam;
and the filling layer is positioned in the cavity of the box-type edge beam.
2. The box beam interlayer fireproof partition structure of claim 1, wherein: the box-type side beam is provided with a stud which penetrates into the main beam from bottom to top; the box-type side beam is fixedly connected with the end part of the main beam through a bolt.
3. A box beam interlayer fire barrier partition structure as defined in claim 2, wherein: the plurality of pegs are divided into two groups and are arranged at the upper end of the box-shaped side beam side by side.
4. The box beam interlayer fireproof partition structure of claim 1, wherein: and the upper surface of the box-type side beam is provided with a grouting hole, and the grouting hole is communicated with the main beam and is used for injecting a filling layer.
5. The box beam interlayer fireproof partition structure of claim 4, wherein: the grouting holes comprise strip holes, and two adjacent air holes with equal distance are arranged between the strip holes.
6. The box beam interlayer fireproof partition structure of claim 4, wherein: the filling layer is made of concrete materials.
7. The box beam interlayer fireproof partition structure of claim 1, wherein: and a stiffening plate is arranged in the box-shaped edge beam.
8. The box beam interlayer fireproof partition structure of claim 1, wherein: the cantilever beam is of a steel frame structure and welded on the main beam, and the main beam is of a steel frame structure.
9. The box beam interlayer fire barrier partition structure of claim 8, wherein: the cantilever beam is an I-shaped plate, and the side surface of the cantilever beam is provided with a plurality of stiffening plates; and a plurality of stiffening plates are arranged between the main beam and the main beam.
10. The box beam interlayer fireproof partition structure of claim 1, wherein: two positioning plates are arranged on one side of the box-type side beam facing the cantilever beam and respectively correspond to the upper end and the lower end of the cantilever beam; the positioning plate is fixedly connected with the cantilever beam in an abutting mode.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120343117.5U CN215167179U (en) | 2021-02-05 | 2021-02-05 | Fireproof separation structure between box girder layers |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120343117.5U CN215167179U (en) | 2021-02-05 | 2021-02-05 | Fireproof separation structure between box girder layers |
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| CN215167179U true CN215167179U (en) | 2021-12-14 |
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| CN202120343117.5U Active CN215167179U (en) | 2021-02-05 | 2021-02-05 | Fireproof separation structure between box girder layers |
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