CN218933417U - Steel structure module unit - Google Patents

Abstract

The utility model discloses a steel structure module unit, and belongs to the technical field of modularized buildings. The steel structure module unit is of a frame structure and comprises two side frames, a plurality of crossing top beams and a plurality of crossing bottom beams, wherein two ends of the crossing top beams are respectively connected to the tops of the two side frames, two ends of the crossing bottom beams are respectively connected to the bottoms of the two side frames, and the crossing top beams are prestress beams. The steel structure module unit adopts the prestress beam to replace the common steel structure beam as the crossing top beam of the steel structure module unit, so that the crossing top beam obtains prestress stress to offset or reduce the tensile stress caused by external force in the using process of the crossing top beam, prevent the lower tension zone of the crossing top beam from deforming, improve the bearing capacity of the crossing top beam, adaptively increase the beam span, save the building cost, reduce the occupation of indoor space, and be suitable for the construction of modular buildings with large span, large space and large load.

Description

Steel structure module unit

Technical Field

The utility model relates to the technical field of modularized buildings, in particular to a steel structure module unit.

Background

The modular building is a highly integrated assembly type building, the building is divided into a plurality of module units, each module unit is prefabricated in a factory respectively, and then transported to a construction site to be assembled into a whole by connection, and compared with the traditional building, the modular building has the advantages of high construction speed, high assembly degree, convenience in later extension and the like.

The modular building at present is mainly used in apartments, villas, office buildings and the like, adopts common steel structure module units, is characterized by structural forms, has weak load bearing capacity of the steel structure of the module units crossing a top beam, and has smaller rigidity, so that the space area of the module units is smaller, the indoor space of the building is limited, and when the space area of the module units is enlarged, middle beam supports are required to be arranged in the frame structure of the module units so as to reduce beam spans, thereby increasing the building cost, and the middle beams occupy the indoor space.

Disclosure of Invention

The utility model aims to provide a steel structure module unit so as to save building cost and reduce the occupation of indoor space, and the steel structure module unit is suitable for the construction of large-span, large-space and large-load modularized buildings.

To achieve the purpose, the utility model adopts the following technical scheme:

the steel structure module unit is of a frame structure and comprises two side frames, a plurality of crossing top beams and a plurality of crossing bottom beams, wherein two ends of each crossing top beam are respectively connected to the tops of the two side frames, two ends of each crossing bottom beam are respectively connected to the bottoms of the two side frames, and each crossing top beam is a prestress beam.

Preferably, the crossing roof beam comprises:

the two ends of the beam main body are respectively connected with the two frames;

the steel bars are arranged in the beam main body in a penetrating mode at intervals and extend along the length direction of the beam main body, and at least one steel bar has prestress.

Preferably, the beam body comprises a U-shaped channel steel, two ends of the U-shaped channel steel are respectively connected with two frames, a concrete body is poured in the U-shaped channel steel, the concrete body is provided with at least one steel bar pore canal, and each steel bar pore canal is correspondingly penetrated with a prestressed steel bar.

Preferably, the beam main body further comprises a plurality of stirrups, wherein the stirrups are located in the U-shaped channel steel and are wound outside the steel bars, and the stirrups are sequentially distributed at intervals along the length direction of the U-shaped channel steel.

Preferably, a plurality of reinforcing connecting pieces which are arranged at intervals are further arranged on the inner side wall of the U-shaped channel steel.

Preferably, the beam main body further comprises a core pulling pipeline, wherein the core pulling pipeline is arranged in the U-shaped channel steel and extends along the length direction of the U-shaped channel steel, and is used for reserving the steel bar pore canal.

Preferably, the core pulling pipe is corrugated.

Preferably, the beam main body further comprises a slurry overflow pipeline, the slurry overflow pipeline is arranged at the upper part of the core pulling pipeline in an included angle mode, and the slurry overflow pipeline is communicated with the inner part of the core pulling pipeline.

Preferably, anchors are mounted at both ends of the pre-stressed steel bar for tensioning the steel bar.

Preferably, the frame comprises a longitudinal top beam, a longitudinal bottom beam and a plurality of upright posts, wherein the upright posts are connected between the longitudinal top beam and the longitudinal bottom beam, the upright posts are arranged at intervals, the transverse top beam is connected to the top ends of the upright posts, and the transverse bottom beam is connected to the bottom ends of the upright posts.

The utility model has the beneficial effects that:

the utility model provides a steel structure module unit, which adopts a prestress beam to replace a common steel structure beam as a crossing top beam of the steel structure module unit, so that the crossing top beam obtains prestress stress to counteract or reduce the tensile stress caused by external force in the use process of the crossing top beam, prevent the lower tension zone of the crossing top beam from deforming, improve the bearing capacity of the crossing top beam and can adaptively increase the span of the crossing top beam. Therefore, the steel structure module unit provided by the utility model is economical and effective, has high rigidity and high strength, saves the building cost, reduces the occupation of indoor space, and is suitable for the construction of large-span, large-space and large-load modularized buildings.

Drawings

FIG. 1 is a schematic view of a steel structure module unit according to an embodiment of the present utility model;

FIG. 2 is an enlarged view at A in FIG. 1;

FIG. 3 is an isometric view of a cross-roof beam prior to concreting provided by an embodiment of the present utility model;

FIG. 4 is a top view of a cross roof beam prior to concreting provided by an embodiment of the present utility model;

fig. 5 is a side view of a cross header prior to concreting provided by an embodiment of the present utility model.

In the figure:

1. a frame; 11. a longitudinal top beam; 12. a longitudinal bottom beam; 13. a column;

2. crossing the top beam; 21. a beam body; 211. u-shaped channel steel; 212. stirrups; 213. reinforcing the connection member; 214. core pulling pipelines; 215. a slurry overflow pipe; 22. reinforcing steel bars; 221. ordinary steel bars; 222. prestress rib; 3. across the bottom beam.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", and the like are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.

As shown in fig. 1, this embodiment provides a steel structure module unit, which is a frame structure and includes two side frames 1, a plurality of crossing top beams 2 and a plurality of crossing bottom beams 3, wherein two ends of the crossing top beams 2 are respectively connected to the tops of the two side frames 1, two ends of the crossing bottom beams 3 are respectively connected to the bottoms of the two side frames 1, and the crossing top beams 2 are prestressed beams. Prestressed beams refer to beams that are pre-stressed with a force that causes them to produce a negative bending moment in the midspan to partially counteract the positive bending moment of the beam in use. That is, in the present embodiment, a pre-compression stress is applied to the crossing cap 2 to offset or reduce a tensile stress of the crossing cap 2 caused by an external force during use, thereby increasing the ability of the crossing cap 2 to withstand a load.

The steel structure module unit adopts the prestress beam to replace the common steel structure beam as the spanning top beam 2 of the steel structure module unit, so that the spanning top beam 2 obtains prestress stress to counteract or reduce the tensile stress caused by external force in the use process of the spanning top beam 2, prevent the lower tension zone of the spanning top beam 2 from deforming, improve the bearing capacity of the spanning top beam 2 and can adaptively increase the beam span. Therefore, the steel structure module unit provided by the embodiment is economical and effective, high in rigidity and strength, saves building cost, reduces occupation of indoor space, and is suitable for building large-span, large-space and large-load modularized buildings.

Further, the frame 1 comprises a longitudinal top beam 11, a longitudinal bottom beam 12 and a plurality of upright posts 13, wherein the upright posts 13 are connected between the longitudinal top beam 11 and the longitudinal bottom beam 12, the upright posts 13 are arranged at intervals, the cross top beam 2 is connected to the top ends of the upright posts 13, and the cross bottom beam 3 is connected to the bottom ends of the upright posts 13.

As shown in fig. 2, the cross top beam 2 comprises a beam main body 21 and a plurality of reinforcing bars 22, and two ends of the beam main body 21 are respectively connected to two frames 1; the plurality of reinforcing bars 22 are penetrated in the beam body 21 at intervals, and extend along the length direction of the beam body 21, and at least one reinforcing bar 22 has prestress.

In this embodiment, four steel bars 22 are disposed in the beam main body 21, the four steel bars 22 are parallel to each other and extend along the length direction of the beam main body 21, the four steel bars 22 are divided into two rows up and down, and two steel bars 22 in each row are distributed left and right so as to provide greater rigidity for crossing the top beam 2 in the case of a small number of steel bars 22. Meanwhile, in order to prevent deformation across the lower tension zone of the top beam 2, two reinforcing bars 22 located in the lower row inside the beam body 21 are provided with prestress. For convenience of description, the steel bars 22 with prestress are called as prestress bars 222, the steel bars 22 without prestress are called as common steel bars 221, thus, two steel bars 22 positioned at the lower row in the beam main body 21 are prestress bars 222, and two steel bars 22 positioned at the upper row in the beam main body 21 are still common steel bars 221, so that the construction cost can be saved under the condition of ensuring that the transverse top beam 2 has stronger bearing capacity.

Of course, in other embodiments, the number of rebars 22 may be increased or decreased adaptively depending on the actual length of the cross-over header 2 and the stiffness required, some of the rebars 22 may be provided as tendons 222, and all of the rebars 22 may be provided as tendons 222.

Further, the beam main body 21 comprises a U-shaped channel steel 211, two ends of the U-shaped channel steel 211 are respectively connected to the two frames 1, the U-shaped channel steel 211 is an outer frame of the beam main body 21 and used for bearing substances such as steel bars 22 and concrete in the beam main body 21, the U-shaped channel steel 211 can ensure the mechanical strength of the crossing top beam 2, the usage amount of steel can be reduced, and the finally obtained crossing top beam 2 has the advantages of light weight, low cost and the like. The U-shaped channel steel 211 is internally poured with a concrete body, the concrete body is provided with at least one steel bar pore canal, and each steel bar pore canal is correspondingly penetrated with a prestressed steel bar 22.

The U-shaped channel steel 211 is internally provided with a common steel bar 221 and a prestressed steel bar 222, the common steel bar 221 is directly placed in the U-shaped channel steel 211 for concrete pouring without reserving a steel bar pore canal, and the prestressed steel bar 222 is required to reserve the steel bar pore canal. Therefore, in this embodiment, the concrete body has two reinforcement holes for placing the tendons 222 after the concrete is poured, so as to facilitate the subsequent tensioning of the tendons 222.

Still further, the beam main body 21 further includes a plurality of stirrups 212, the stirrups 212 are located in the U-shaped channel steel 211 and are wound outside the plurality of steel bars 22, and the plurality of stirrups 212 are sequentially arranged at intervals along the length direction of the U-shaped channel steel 211 for improving the shear strength of the cross section of the top beam 2.

In this embodiment, in order to uniformly distribute the capability of resisting external force across the top beam 2, a plurality of stirrups 212 are uniformly distributed along the length direction of the U-shaped channel steel 211, the stirrups 212 are rectangular stirrups with 2 transverse limbs and 2 vertical limbs, four reinforcing steel bars 22 are positioned at four corners in the stirrups 212, wherein common reinforcing steel bars 221 are connected with the stirrups 212, prestressed tendons 222 are not connected with the stirrups 212, and the stirrups 212 and the common reinforcing steel bars 221 are buried in concrete.

In order to enhance the connection between the U-shaped channel steel 211 and the concrete body, the concrete body is prevented from sliding relatively in the U-shaped channel steel 211, and a plurality of reinforcing connectors 213 which are arranged at intervals are further arranged on the inner side wall of the U-shaped channel steel 211. In this embodiment, the reinforcing connection pieces 213 are arranged on the inner side wall of the U-shaped channel steel 211 at equal intervals, the reinforcing connection pieces 213 are pins, the tail portions of the pins are fixedly connected to the inner side wall of the U-shaped channel steel 211, and the rest portions of the pins are buried in the concrete body.

As shown in fig. 3 to 5, the beam main body 21 further includes a loose core pipe 214, where the loose core pipe 214 is disposed in the U-shaped channel 211 and extends along the length direction of the U-shaped channel 211, for reserving a reinforcement tunnel.

In the preparation process of crossing the top beam 2, core pulling pipelines 214 are placed in the U-shaped channel steel 211 in advance, concrete pouring is carried out, and after the concrete strength reaches the standard to form a concrete body, the core pulling pipelines 214 are pulled out, so that a reinforced bar pore canal is formed in the concrete body, and the prestress bars 222 are conveniently placed in the concrete body. In this embodiment, therefore, the number of loose core pipes 214 is two as well as the number of tendons 222.

Further, the loose core pipe 214 is corrugated, so that the connection between the re-injected slurry and the concrete body after the prestressed tendons 222 are put in can be enhanced. In order to facilitate the extraction of the core-pulling pipe 214, the core-pulling pipe 214 may be an air-filled pipe, and the concrete may be released after the concrete strength reaches the standard to form a concrete body, and of course, the core-pulling pipe 214 may not be extracted, and the prestressed tendons 222 may be directly placed inside the core-pulling pipe 214.

Still further, the beam body 21 further includes a slurry overflow pipe 215, the slurry overflow pipe 215 is disposed at an included angle on an upper portion of the core pulling pipe 214, the slurry overflow pipe 215 is communicated with an inside of the core pulling pipe 214, and is used for forming a slurry overflow hole in the concrete body, so as to detect whether the slurry in the steel bar hole is filled up when the slurry is backfilled, and when the slurry overflows from the slurry overflow hole, the steel bar hole is filled up. One or more slurry pipes 215 may be disposed on one core back pipe 214, and in this embodiment, the slurry pipe 215 is vertically disposed on an upper portion of the core back pipe 214.

Further, anchors are installed at both ends of the pre-stressed steel bar 22 for tensioning the steel bar 22 to pre-stress the steel bar 22, thereby obtaining the pre-stressed steel bar 222.

The construction process of the steel structure module unit crossing the top beam 2 provided by the embodiment of the utility model is as follows:

step one, reinforcing connectors 213 which are distributed at equal intervals are arranged on the inner side wall of the U-shaped channel steel 211;

step two, arranging a plurality of stirrups 212 and two common steel bars 221 in the U-shaped channel steel 211, enabling the stirrups 212 to be distributed at equal intervals along the length direction of the U-shaped channel steel 211, enabling the two common steel bars 221 to penetrate through left and right corners of the upper row of the stirrups 212 respectively, and enabling the stirrups 212 to be wound outside the two common steel bars 221 and connected with the two common steel bars 221;

step three, arranging two core-pulling pipelines 214 in the U-shaped channel steel 211, enabling the two core-pulling pipelines 214 to be respectively penetrated into left and right corners of the lower row of the stirrups 212, and enabling the stirrups 212 to be wound outside the two core-pulling pipelines 214;

step four, arranging a slurry overflow pipeline 215 at the upper part of the core-pulling pipeline 214, so that the slurry overflow pipeline 215 is communicated with the inside of the core-pulling pipeline 214;

fifthly, pouring concrete in the U-shaped channel steel 211, drawing out the core-pulling pipeline 214 to form a reinforced bar pore canal after the concrete strength reaches the standard to form a concrete body, and drawing out the slurry overflow pipeline 215 to form a slurry overflow pore canal;

step six, placing the steel bar 22 in the steel bar pore canal, installing anchors at two ends of the steel bar 22, and tensioning the steel bar 22 to generate prestress on the steel bar 22 so as to obtain a prestress steel bar 222;

step seven, injecting slurry into the reinforced bar pore canal until the slurry overflows from the overflow pore canal;

and step eight, after the strength of the backfilled slurry reaches the standard, the prestressed steel structure module unit crossing top beam 2 can be obtained.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. The steel structure module unit is characterized by comprising two side frames (1), a plurality of top beams (2) and a plurality of bottom beams (3) which are spanned, wherein two ends of the top beams (2) are respectively connected to the tops of the two side frames (1), two ends of the bottom beams (3) are respectively connected to the bottoms of the two side frames (1), and the top beams (2) are prestressed beams.

2. The steel structure modular unit according to claim 1, characterized in that said crossing roof rail (2) comprises:

the two ends of the beam main body (21) are respectively connected with the two frames (1);

the steel bars (22) are arranged in the beam main body (21) in a penetrating mode at intervals and extend along the length direction of the beam main body (21), and at least one steel bar (22) has prestress.

3. The steel structure module unit according to claim 2, wherein the beam body (21) comprises a U-shaped channel steel (211), two ends of the U-shaped channel steel (211) are respectively connected to two frames (1), a concrete body is poured in the U-shaped channel steel (211), at least one steel bar pore canal is formed in the concrete body, and a steel bar (22) with prestress is correspondingly arranged in each steel bar pore canal in a penetrating mode.

4. A steel structure module unit according to claim 3, wherein the beam body (21) further comprises a plurality of stirrups (212), the stirrups (212) are located in the U-shaped channel steel (211) and are wound outside a plurality of the steel bars (22), and the stirrups (212) are sequentially arranged at intervals along the length direction of the U-shaped channel steel (211).

5. A steel structure modular unit according to claim 3, characterized in that the inner side walls of the U-shaped channel (211) are further provided with a plurality of reinforcing connectors (213) arranged at intervals.

6. A steel structure modular unit according to claim 3, wherein the beam body (21) further comprises a loose core pipe (214), the loose core pipe (214) being arranged in the U-shaped channel (211) and extending along the length direction of the U-shaped channel (211) for reserving the reinforcement tunnel.

7. The steel structure modular unit according to claim 6, characterized in that said loose core duct (214) is corrugated.

8. The steel structure module unit according to claim 6, wherein the beam body (21) further comprises a slurry overflow pipe (215), the slurry overflow pipe (215) is disposed at an upper portion of the core pulling pipe (214) at an included angle, and the slurry overflow pipe (215) is communicated with an inside of the core pulling pipe (214).

9. A steel structure modular unit according to claim 2, characterized in that the two ends of the steel reinforcement (22) with prestressing are equipped with anchors for tensioning the steel reinforcement (22).

10. The steel structure module unit according to any one of claims 1 to 9, wherein the frame (1) comprises a longitudinal top beam (11), a longitudinal bottom beam (12) and a plurality of upright posts (13), the upright posts (13) being connected between the longitudinal top beam (11) and the longitudinal bottom beam (12), the plurality of upright posts (13) being arranged at intervals from each other, the cross top beam (2) being connected to the top ends of the upright posts (13), the cross bottom beam (3) being connected to the bottom ends of the upright posts (13).

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