CN219343711U - Hollow structure with overlapped T-ribs and building - Google Patents

Abstract

The present disclosure provides a folded T-rib hollow structure comprising: a hollow core slab comprising a slab body and including or not including protruding rebars extending from at least one side of the slab body; t-shaped ribs disposed in the space between adjacent two hollow plates; and the overlapping layer is at least arranged on the prefabricated hollow slab, and the overlapping layer and the T-shaped rib are integrally formed through cast-in-place concrete. The present disclosure also provides a building.

Description

Hollow structure with overlapped T-ribs and building

Technical Field

The present disclosure relates to a stacked T-ribbed hollow structure and a building.

Background

At present, the assembled building is widely used, but the technical progress is not obvious, and compared with the traditional building, the assembled building has high construction cost and weak use intention. The large-scale building, roof board etc. belong to horizontal component, the stressed area is very big, the prior art usually adopts solid board, and solid board is comparatively thick and heavy, competes the relevant function completely according to the quantity of material, and mechanical properties is relatively poor, often resists the dead weight and just consumes most bending resistance, and the net contribution to the building is only a fraction, so the improvement of the ability of corresponding building component and reduction of the dead weight are a critical breakthrough direction.

The "overlapping T-rib hollow structure" of the present disclosure solves the above-mentioned problems well. Under the condition that the material consumption is equal and the area is equal, compared with a solid plate, the laminated hollow plate and the T rib can greatly increase the section moment of inertia, and the cast-in-place concrete lamination is used for forming an integral structure, so that the bearing capacity and/or the bending resistance of the integral structure are greatly improved, a large amount of concrete in holes is saved in the hollow plate, and the structural dead weight can be greatly reduced, so that the laminated hollow plate with the T rib can greatly improve the effective bearing capacity, greatly reduce the building dead weight, greatly reduce the building cost, realize large-scale industrial production, realize rapid assembly at a construction site and greatly save the construction period.

Disclosure of Invention

In order to solve one of the above technical problems, the present disclosure provides a laminated T-rib hollow structure and a building.

According to one aspect of the present disclosure, a laminated T-rib hollow structure includes:

a hollow core slab comprising a slab body and including or not including protruding rebars extending from at least one side of the slab body;

t-shaped ribs disposed in the space between adjacent two hollow plates; and

And the laminated layer is at least arranged on the prefabricated hollow slab, and the laminated layer and the T-shaped rib are integrally formed through cast-in-place concrete.

According to the overlapping T-rib hollow structure of at least one embodiment of the present disclosure, a predetermined space is spaced between the adjacent two hollow pre-cast plates, and the T-rib is formed in the predetermined space by cast-in-place concrete and the overlapping layer is formed at least over the hollow pre-cast plates.

According to the overlapping T-rib hollow structure of at least one embodiment of the present disclosure, a reinforcing steel bar structure is disposed on the prefabricated hollow slab, and the overlapping layer is formed by cast-in-place concrete.

A stacked T-rib hollow structure according to at least one embodiment of the present disclosure, the T-rib comprising a longitudinally extending rebar structure extending longitudinally between the adjacent two hollow pre-forms relative to a cross-section of the adjacent two hollow pre-forms, optionally comprising a first rebar diagonal and/or perpendicular relative to the cross-section, and a stirrup for the first rebar and/or tie; and/or

The T-shaped rib comprises a transverse extending reinforced structure which transversely extends in the superposed layers relative to the section of the prefabricated hollow slab, and optionally, the transverse reinforced structure is an independently arranged reinforced structure and/or a reinforced structure of the superposed layers.

A stacked T-rib hollow structure according to at least one embodiment of the present disclosure, the lower ends of the T-ribs being flush with the bottom of the prefabricated hollow slab; or the lower ends of the T-shaped ribs protrude outwards relative to the bottom of the precast hollow slab; or the lower ends of the T-shaped ribs protrude outwardly with respect to the bottom of the hollow core slab and extend transversely with respect to the bottom of the hollow core slab; or the prefabricated hollow slab is provided with a pocket bottom plate.

In accordance with at least one embodiment of the present disclosure, the overlapping T-rib hollow structure, where included, can be connected or anchored with the T-rib, with a bolster, and/or with a side rail.

A stacked T-rib hollow structure according to at least one embodiment of the present disclosure for use in floor or roofing structures of above-ground or below-ground buildings; or a parking level or roof structure for a motorized or non-motorized garage.

The hollow slab is a precast reinforced concrete prestressed hollow slab or a precast reinforced concrete non-prestressed hollow slab according to at least one embodiment of the present disclosure.

According to another aspect of the present disclosure, a building includes:

a stacked T-rib hollow structure as claimed in any one of the preceding claims;

a support column for providing support; and

and the supporting beams are at least partially supported by the supporting columns, and the superposed T-rib hollow structures are at least partially supported by the supporting beams.

According to yet another aspect of the present disclosure, a building includes:

a stacked T-rib hollow structure as claimed in any one of the preceding claims; and

and the T-rib hollow structure is at least partially supported by the supporting wall.

According to the building of at least one embodiment of the present disclosure, the protruding reinforcement is provided at the side of the overlapping T-rib hollow structure combined with the joist/bearing wall, and the protruding reinforcement is anchored/connected to the joist/bearing wall by cast-in-place concrete, or the protruding reinforcement is not provided at the side of the overlapping T-rib hollow structure combined with the joist/bearing wall, and the overlapping T-rib hollow structure is connected to the joist/bearing wall by cast-in-place concrete.

According to the building of at least one embodiment of the present disclosure, at the joint position of the joist/bearing wall and the overlapping T-rib hollow structure, a longitudinal reinforcement extension structure and/or a transverse reinforcement extension structure are provided, and the connection of the joist/bearing wall and the overlapping T-rib hollow structure is achieved by cast-in-place concrete, wherein:

The longitudinal reinforcement extending structure extends longitudinally relative to the cross section of the combination position, optionally, the longitudinal reinforcement extending structure comprises a second reinforcement oblique and/or vertical to the cross section of the combination position and a hooping for hooping the second reinforcement and/or a lacing wire for realizing a drawknot function;

the transverse reinforcement extension structure extends transversely relative to the cross section of the joint position, and optionally, the transverse reinforcement extension structure is an independently arranged reinforcement structure and/or a reinforcement structure of the laminated layer.

According to a building of at least one embodiment of the present disclosure, the T-shaped rib includes an anchor bar extending to the joist/bearing wall, and connection or anchoring of the anchor bar to the joist/bearing wall is achieved by cast-in-place concrete.

According to at least one embodiment of the present disclosure, the joist/bearing wall is provided with a lug structure for supporting the overlapping T-ribbed hollow structure.

The building according to at least one embodiment of the present disclosure further includes side beams supported by the support columns or the bearing walls and disposed in parallel with the hollow core slab.

According to the building of at least one embodiment of the present disclosure, a longitudinal reinforcement extension structure and/or a transverse reinforcement extension structure is provided at a joint position of the side beam and the overlapping T-rib hollow structure, and connection of the side beam and the overlapping T-rib hollow structure is achieved through cast-in-place concrete.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the disclosure and together with the description serve to explain the principles of the disclosure.

Fig. 1 illustrates a structure of a hollow core slab according to an embodiment of the present disclosure.

Fig. 2 illustrates a cross-sectional view of a hollow core slab according to an embodiment of the present disclosure.

Fig. 3 illustrates a cross-sectional view of a hollow core slab according to an embodiment of the present disclosure.

Fig. 4 illustrates a cross-sectional view of a folded T-rib hollow structure according to an embodiment of the present disclosure.

Fig. 5 illustrates a cross-sectional view of a folded T-rib hollow structure according to an embodiment of the present disclosure.

Fig. 6 illustrates a cross-sectional view of a folded T-rib hollow structure according to an embodiment of the present disclosure.

Fig. 7 illustrates a cross-sectional view of a folded T-rib hollow structure according to an embodiment of the present disclosure.

Fig. 8 illustrates a cross-sectional view of a folded T-rib hollow structure according to an embodiment of the present disclosure.

Fig. 9 illustrates a cross-sectional view of a folded T-rib hollow structure according to an embodiment of the present disclosure.

Fig. 10 illustrates a cross-sectional view of a folded T-rib hollow structure according to an embodiment of the present disclosure.

Fig. 11 illustrates a cross-sectional view of a folded T-rib hollow structure according to an embodiment of the present disclosure.

Fig. 12 illustrates a schematic diagram of the use of a folded T-rib hollow structure according to an embodiment of the present disclosure.

Fig. 13 illustrates a cross-sectional view of a folded T-rib hollow structure according to an embodiment of the present disclosure.

Fig. 14 illustrates an example of a hollow-core slab coupling according to an embodiment of the present disclosure.

Fig. 15 illustrates an example of a hollow-core slab coupling according to an embodiment of the present disclosure.

Fig. 16 illustrates an example of a hollow-core slab coupling according to an embodiment of the present disclosure.

Fig. 17 illustrates an example of a hollow-core slab coupling according to an embodiment of the present disclosure.

Fig. 18 illustrates a cross-sectional view of a hollow core slab and related structures according to an embodiment of the present disclosure.

Fig. 19 illustrates a cross-sectional view of a hollow core slab and related structures according to an embodiment of the present disclosure.

Detailed Description

The present disclosure is described in further detail below with reference to the drawings and the embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant content and not limiting of the present disclosure. It should be further noted that, for convenience of description, only a portion relevant to the present disclosure is shown in the drawings.

In addition, embodiments of the present disclosure and features of the embodiments may be combined with each other without conflict. The technical aspects of the present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Unless otherwise indicated, the exemplary implementations/embodiments shown are to be understood as providing exemplary features of various details of some ways in which the technical concepts of the present disclosure may be practiced. Thus, unless otherwise indicated, features of the various implementations/embodiments may be additionally combined, separated, interchanged, and/or rearranged without departing from the technical concepts of the present disclosure.

The use of cross-hatching and/or shading in the drawings is typically used to clarify the boundaries between adjacent components. As such, the presence or absence of cross-hatching or shading does not convey or represent any preference or requirement for a particular material, material property, dimension, proportion, commonality between illustrated components, and/or any other characteristic, attribute, property, etc. of a component, unless indicated. In addition, in the drawings, the size and relative sizes of elements may be exaggerated for clarity and/or descriptive purposes. While the exemplary embodiments may be variously implemented, the specific process sequences may be performed in a different order than that described. For example, two consecutively described processes may be performed substantially simultaneously or in reverse order from that described. Moreover, like reference numerals designate like parts.

When an element is referred to as being "on" or "over", "connected to" or "coupled to" another element, it can be directly on, connected or coupled to the other element or intervening elements may be present. However, when an element is referred to as being "directly on," "directly connected to," or "directly coupled to" another element, there are no intervening elements present. For this reason, the term "connected" may refer to physical connections, electrical connections, and the like, with or without intermediate components.

For descriptive purposes, the present disclosure may use spatially relative terms such as "under … …," under … …, "" under … …, "" lower, "" above … …, "" upper, "" above … …, "" higher "and" side (e.g., as in "sidewall"), etc., to describe one component's relationship to another (other) component as illustrated in the figures. In addition to the orientations depicted in the drawings, the spatially relative terms are intended to encompass different orientations of the device in use, operation, and/or manufacture. For example, if the device in the figures is turned over, elements described as "under" or "beneath" other elements or features would then be oriented "over" the other elements or features. Thus, the exemplary term "below" … … can encompass both an orientation of "above" and "below". Furthermore, the device may be otherwise positioned (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Furthermore, when the terms "comprises" and/or "comprising," and variations thereof, are used in the present specification, the presence of stated features, integers, steps, operations, elements, components, and/or groups thereof is described, but the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof is not precluded. It is also noted that, as used herein, the terms "substantially," "about," and other similar terms are used as approximation terms and not as degree terms, and as such, are used to explain the inherent deviations of measured, calculated, and/or provided values that would be recognized by one of ordinary skill in the art.

According to one embodiment of the present disclosure, a stacked T-rib hollow structure is provided. The overlapping T-rib hollow structure may include a prefabricated hollow slab, an overlapping layer, and a T-rib.

Fig. 1 illustrates a structure of a hollow core slab according to one embodiment of the present disclosure. Fig. 2 and 3 show examples of A-A cross-sectional views of fig. 1.

As shown in fig. 1, the hollow core slab 100 may include a slab body 110 and protruding reinforcing bars 120. Wherein the plate 110 may be prefabricated of reinforced concrete, and the plate may be internally provided with stress reinforcing bars and construction reinforcing bars, and the stress reinforcing bars may be divided into prestressed and non-prestressed. The extension bars 120 extend outward from the plate body 110 from both sides of the plate body 110, and the predetermined length of the extension bars 120 may be set according to practical situations. Wherein the two sides may be a first side and a second side, and the two sides may be two corresponding sides with respect to the plate body 110. Although two corresponding side portions are shown in fig. 1, two side portions may be adjacent side portions according to actual circumstances. The extension bars 120 may extend outward from three sides, one side, four sides, or the like of the plate body 110. In addition, the above description is described with reference to the strip-shaped plate body shown in fig. 1, but in the case where the plate body is of other shapes, for example, a circular shape, a special shape, or the like, the protruding reinforcing bars 120 may extend outward over the entire peripheral side portions or a part of the peripheral side portions of various shapes.

As shown in fig. 1, the extension bars 121 and the extension bars 122 may be part of the same bar, which may pass through the plate body 110, and extend at both sides to form the extension bars 121 and the extension bars 122. The extension bars 121 and the extension bars 122 may also be two bars, for example, the extension bars 121 may be a portion of one bar, another portion of the one bar may extend in the plate body 110, the extension bars 122 may be a portion of another bar, and another portion of the other bar may extend in the plate body 110. The number of the protruding reinforcing bars at each side portion is not limited, and the number of the protruding reinforcing bars at each side portion may be the same or different.

Fig. 2 shows an embodiment of a cross-sectional view of A-A of the hollow core slab shown in fig. 1. As shown in fig. 2, a plurality of hollow structures 111 are formed in the hollow core plate, and the hollow structures may have a circular cross-sectional shape, and the circular hollow structures may extend from one side portion to the other side portion of the plate body 110. In addition, the circular hollow structure may extend a part (for example, a non-penetrating form or the like) in the plate body 110. In addition, the side of the slab body may be provided with a concave structure 112, by which the concave structure may be closely combined with cast-in-place concrete when the hollow slab is assembled, thereby forming an effective stressed whole. Although it is shown in fig. 2 that the concave structure 112 is provided at the side, a convex structure may be provided which is convex outwardly with respect to the side, and may also be tightly coupled with cast-in-place concrete. Further, the concave/convex structure may be provided at a side portion where the reinforcing bars are not protruded, or at a side portion where the reinforcing bars are protruded, that is, at any side portion or any several side portions of the plate body 110.

Fig. 3 shows an embodiment of a cross-sectional view of A-A of the hollow core slab shown in fig. 1. As shown in fig. 3, a plurality of hollow structures 113, which may have a square cross-sectional shape, are formed in the hollow pre-cast slab, and the square hollow structures may extend from one side portion to the other side portion of the slab body 110. In addition, the square hollow structure may extend a part (for example, a non-penetrating form or the like) in the plate body 110. In addition, the side of the slab body may be provided with a concave structure 112, by which the concave structure may be closely combined with cast-in-place concrete when the hollow slab is assembled, thereby forming an effective stressed whole. Although it is shown in fig. 3 that the concave structure 112 is provided at the side, a convex structure may be provided which is convex outwardly with respect to the side, and also may be tightly coupled with cast-in-place concrete. Further, the concave/convex structure may be provided at a side portion where the reinforcing bars are not protruded, or at a side portion where the reinforcing bars are protruded, that is, at any side portion or any several side portions of the plate body 110.

In fig. 2 and 3 it is shown that the hollow structure may be a circular hole or a square hole, but according to the present disclosure the hollow structure may also be any other suitable shape, e.g. may be an elliptical hole, a rectangular hole, a profiled hole, etc. Chamfer 114 may be provided when the hollow structure is in a right angle or near right angle shape. Wherein the chamfer 114 may be a chamfer or an arcuate chamfer or the like to facilitate stripping of the mold when preparing the hollow slab.

Fig. 4 illustrates a folded T-rib hollow structure according to one embodiment of the present disclosure. As shown in fig. 4, a lamination layer 200 is provided on the upper side of the hollow core slab 100, wherein the lamination layer 200 may be formed by casting concrete on the hollow core slab 100 in place. The hollow core slab and the superimposed layer form a closely connected superimposed structure by casting a concrete superimposed layer of a predetermined thickness on the hollow core slab 100. In the use, hollow core slab and coincide layer can be jointly whole atress, can reduce overall structure's dead weight like this and can guarantee overall structure's intensity again.

The superimposed layer 200 may be provided with or without reinforcing bars. In the case of providing the reinforcing bars, the reinforcing bars disposed in the lamination layer 200 may participate in the common stress, and may also enhance the overall strength, etc. The method comprises the following steps: a two-dimensional or three-dimensional reinforcing structure may be laid on the hollow core slab 100, for example, reinforcing bars, reinforcing mesh, and/or cages may be laid on the hollow core slab 100, and after the laying is completed, concrete may be cast in place to form a stacked layer with reinforcing bars.

Fig. 5 illustrates a folded T-rib hollow structure according to another embodiment of the present disclosure. Fig. 5 differs from fig. 4 in that the hollow structure is circular in fig. 4 and square in fig. 5. The description of the lamination layer shown in fig. 5 may be referred to the related description of fig. 4.

As shown in fig. 4 and 5, T-ribs may be provided at a position between two adjacent hollow pre-forms 100. Adjacent hollow core slabs 100 are spaced apart by a predetermined space (a predetermined distance, a predetermined width) such that a rib structure will be formed by cast-in-place concrete in the predetermined space (a predetermined distance, a predetermined width) when concrete casting is performed. Through this coincide T rib hollow structure, can connect adjacent hollow core slab effectively to can improve effective bearing capacity by a wide margin under the condition that the hollow core slab reduces the dead weight, can improve the bending resistance of hollow core slab effectively.

According to the embodiment of the disclosure, the T-shaped rib can be formed by casting concrete only or can be in the form of reinforced concrete. Preferably when in the form of reinforced concrete, a longitudinally extending rebar structure 310 may be provided. As shown, the longitudinally extending rebar structure can extend longitudinally (up and down in the drawing) between two adjacent hollow slabs relative to the cross-section of the two adjacent hollow slabs (e.g., the cross-section shown in fig. 4, etc.). The longitudinally extending rebar structure may include a first rebar and a stirrup that hoops the first rebar and/or a tie that effects a drawknot. The first rebar may be a rebar diagonal and/or perpendicular to the cross-section described above, e.g., in a direction into the page of the drawing. The stirrup can be circular stirrup, square stirrup, etc., and the mode of binding can be various modes such as binding, welding. The longitudinally extending rebar structures may be disposed in predetermined spaces spaced between adjacent hollow pre-cast slabs, and concrete may be cast in place after the longitudinally extending rebar structures are disposed, thereby forming T-ribs and overlapping layers. In addition, the T-ribs may also include laterally extending rebar structures 320. The cross-section of the transversely extending rebar structure relative to the hollow precast slab can extend transversely (e.g., in the left-right direction of the drawing) in the laminate. The transverse extending steel bar structure and the longitudinal extending steel bar structure can be fixedly connected, after the longitudinal extending steel bar structure is arranged in the preset space, concrete is cast in place, so that a T-shaped rib and a superposed layer are formed, and the transverse extending steel bar structure is positioned in the superposed layer. In addition, the transversely extending rebar structure may be a rebar structure in a laminate with rebar, and after insertion of the longitudinally extending rebar structure, the laminate rebar structure may be connected or disconnected with the longitudinally extending rebar structure, and then the concrete is cast in place, so that a T-rib and laminate may be formed. In the present disclosure, the longitudinally extending rebar structures may be in the form of steel reinforcement bars, rebar meshes, and/or rebar cages, among others.

According to one embodiment of the present disclosure, pocket bottom plates 114 may be provided at the hollow core plates, and the pocket bottom plates 114 may extend outwardly from sides of the hollow core plates, such as where the pocket bottom plates 114 are provided at adjacent sides between the hollow core plates when the hollow core plates are installed. As shown in fig. 4 and 5, when two hollow core plates are installed adjacently, the pocket bottom plates of the two hollow core plates may contact (or nearly contact) at the bottom of the above-mentioned predetermined space, so that the pocket bottom plates 114 may act as a barrier to prevent concrete from leaking out when concrete is cast in place to form T-ribs and a stacked layer. By the arrangement of the pocket floor 114, no additional floor forms are necessary during the concrete cast-in-place process.

Other embodiments of the present disclosure are shown in fig. 6 and 7, in which the difference from the embodiments shown in fig. 4 and 5 is that no pocket floor is provided in the hollow core slab. In the process of casting concrete in situ, a bottom template can be arranged at the lower part of the space where the T-shaped rib is positioned, so that the T-shaped rib and the superposed layer are formed through the cast in situ concrete, and the T-shaped rib formed at the moment is flush with the bottom of the precast hollow slab.

Fig. 8 and 9 illustrate other embodiments according to the present disclosure, in which the difference from the embodiments shown in fig. 6 and 7 is that the T-shaped rib extends outwardly a predetermined length with respect to the bottom of the hollow core slab to form an outwardly protruding structure 330 (shown in phantom line drawing). In addition, in the case that the T-shaped rib includes a reinforcing bar structure, the reinforcing bar structure is also correspondingly provided to protrude outwardly with respect to the bottom of the hollow core slab. In the case of forming the T-shaped rib by cast-in-place concrete, the cast-in-place concrete is cast in place after the bottom form is set so as to form a convex T-shaped rib. The structure can increase the section height of the rib, can strengthen the mechanical property of the structure and improve the bearing capacity of the structure. The strength of the overall structure can be better increased, the moment of inertia of the cross section can be better increased, and the bending resistance can be greatly improved, relative to the embodiments of fig. 4 and 5 and the embodiments of fig. 6 and 7.

Fig. 10 and 11 illustrate other embodiments according to the present disclosure, in which the lower portion of the T-shaped rib includes a protruding lateral structure 340, wherein the protruding lateral structure 340 refers to a structure extending laterally with respect to the cross section of fig. 10 and 11, as distinguished from the embodiments illustrated in fig. 6 and 7. Wherein the protruding transverse structure is provided protruding outwardly from the lower portion of the T-shaped rib with respect to the bottom of the hollow core slab and extends in the transverse direction, thus forming an i-shaped structure. The shape of the protruding lateral structure may be expressed as that the T-shaped rib may protrude from the bottom of the hollow pre-mold plate and extend to both sides or to one side by a predetermined distance. In the case that the T-rib includes a reinforcement/rebar structure, the longitudinally extending rebar structure is added or extended downward to protrude to the outside of the bottom of the hollow precast slab, and a laterally extending rebar structure may be provided for the protruding lateral structure, which may be connected with the lower portion of the longitudinally extending rebar structure. As described above, the longitudinally extending rebar structure may extend longitudinally between two adjacent hollow plates with respect to the cross-section of the two adjacent hollow plates. The longitudinally extending rebar structure may include a first rebar and a stirrup that hoops the first rebar and/or a tie that effects a drawknot. The first rebar may be a rebar diagonal and/or perpendicular to the cross-section described above, e.g., in a direction into the page of the drawing. The stirrup can be circular stirrup, square stirrup, etc., and the mode of binding can be various modes such as binding, welding. The transversely extending rebar structures may extend transversely in the stacked layers relative to the cross-section of the hollow precast slab. In forming the T-shaped rib, a corresponding bottom mold may be provided or the above-described protruding transverse structure may also be used as a function of the bottom mold, and the i-shaped rib with the protruding transverse structure may be formed by cast-in-place concrete. The protruding transverse structure increases the cross-section height of the rib and forms an I-shaped cross section with more excellent mechanical properties, so that the structural capacity can be better enhanced.

The laminated T-rib hollow structure can be used for transverse structures such as floors and roofs in overground buildings or underground buildings, for example, structures such as parking floors and garage tops of motor vehicle garages and non-motor vehicle garages can be formed.

The manner of use (lamination layer not shown) according to one embodiment of the present disclosure is shown in fig. 12. For example, the figure may be a top view of a building.

The building may be constructed of prefabricated hollow slabs 100, joists 400, side beams 500 and support columns 600. The bolster 400 and side beams 500 may extend horizontally and be supported at least in part by the support columns 600. The directions of extension of the bolster 400 and the side beams 500 may be different in the present disclosure, and may be, for example, 90 degrees. In the process of setting the hollow core slab 100, both sides of the hollow core slab 100 may be combined with the joists 400 and at least a portion is supported by the joists 400, while the other both sides of the hollow core slab 100 may be combined with other hollow core slabs and/or side beams 500 and at least a portion is supported by the side beams 500. For example, referring to the direction shown in fig. 12, the left and right sides of the hollow slab 100 may be coupled with the bolster 400, and the upper and lower sides may be coupled with other hollow slabs and/or the center sill 500. Thus, the overall structure of the floor slab, roof, etc. can be formed by providing the hollow slab 100 and then casting the laminate and T-ribs.

Fig. 13 illustrates an embodiment of a combination of a hollow core slab 100 and side beams 520 shown in fig. 12. Side beams are referred to herein as beams located near the sides of the hollow core slab. The hollow core slab 100 needs to be provided at both sides of the side beams 520. In the embodiment shown in fig. 13, the predetermined space between two adjacent side beams 520 is approximately equal to the cross-sectional width of the side beam 520. The predetermined space may be equal to, smaller than, or larger than the cross-sectional width. The side beams 520 may be prefabricated composite beams or cast-in-place beams. After the placement of the prefabricated hollow slab relative to the side rail is completed, concrete can be cast in place to form the connection structure and the laminate. The protruding reinforcing bars of the side beam 520 may be used as reinforcing bar structures of the connection structure, and reinforcing bars of the connection structure may be separately provided. The connection structure is similar to a T-rib and can also be considered a T-rib. As one example, the connection structure includes a longitudinal rebar extension 521 and a transverse rebar extension 522. The longitudinal reinforcement extension may extend longitudinally (up and down in the drawing) between adjacent two of the hollow plates with respect to a cross section of the hollow plates (e.g., the cross section shown in fig. 13). The longitudinal bar extension structure may include a first bar and a stirrup to which the first bar is bound and/or a tie to effect a drawknot. The first rebar may be a rebar diagonal and/or perpendicular to the cross-section, such as in a direction into the page of the drawing. The stirrup can be circular stirrup, square stirrup, etc., and the mode of binding can be various modes such as binding, welding. The transverse rebar extension may extend transversely (e.g., in the left-right direction of the drawing) in the stacked layers relative to the cross-section of the hollow slab.

An upper portion (stirrup or first rebar) of the longitudinal rebar extension 521 may be connected to the transverse rebar extension 522. In addition, a transverse reinforcement extension structure is not required. Other details may be found in the previous T-rib content. In fig. 13, the protruding reinforcement structure of the side rail 520 may be used as the reinforcement structure of the connection structure, for example, the protruding reinforcement structure may be prefabricated when the side rail is prefabricated, or the protruding reinforcement structure may be reserved when the side rail is cast in place.

Fig. 14 illustrates an embodiment of a combination of a hollow core slab 100 and side beams 520 shown in fig. 12. The embodiment of fig. 14 differs from the embodiment of fig. 13 in that the predetermined space between two adjacent hollow pre-forms is greater. In this case, a transverse reinforcing structure 523 intersecting the vertical structure may be provided in a predetermined space, followed by cast-in-place concrete.

Fig. 15 illustrates an embodiment of a combination of a hollow core slab 100 and side beams 510 shown in fig. 12. In this embodiment, the hollow core slab is provided only at one side of the side beam 510. The prefabricated hollow slab is adjacent to the side beam and can be arranged on a part of the side beam. The side beams 510 may be prefabricated composite beams or cast-in-situ beams. After the placement of the prefabricated hollow slab relative to the side rail is completed, concrete can be cast in place to form the connection structure and the laminate. The protruding reinforcing bars of the side beam 510 may be used as reinforcing bars of the connection structure, or may be separately provided. The connection structure is similar to a T-rib. As one example, the connection structure includes a longitudinal rebar extension 511 and a transverse rebar extension 512. The contents of the longitudinal rebar extension 511 and the transverse rebar extension 512 may be described with reference to fig. 13, for example. The upper portion (stirrup or first rebar) of the longitudinal rebar extension 511 may or may not be connected to the transverse rebar extension 512. In addition, a transverse reinforcing steel bar structure is not required. Other details may be found in the previous T-rib content. In fig. 13, the protruding reinforcement structure of the side rail 520 may be used as the reinforcement structure of the connection structure, for example, the protruding reinforcement structure may be prefabricated when the side rail is prefabricated, or the protruding reinforcement structure may be reserved when the side rail is cast in place.

Fig. 16 shows an embodiment of the combination of the hollow core slab 100 and the side beams 510 shown in fig. 12 (a section in the B-B direction shown in fig. 1). The embodiment of fig. 16 differs from the embodiment of fig. 15 in that the hollow core slab is spaced a greater distance from the side beams 510. In this case, a transverse reinforcement structure 513 crossing the vertical structure may be provided in a predetermined space, followed by cast-in-place concrete.

Fig. 17 shows an embodiment of the combination of the hollow core slab 100 and the bolster 400 shown in fig. 12 (a section in the B-B direction shown in fig. 1)). Wherein the protruding rebars 120 of the hollow slab as shown in fig. 17 may be anchored/connected to the joist 400 (cast in place concrete). The manner of coupling with the bolster 410 is described below with reference to fig. 17. In this embodiment, the hollow core slab is provided only at one side of the bolster 410. The hollow precast slab is adjacent to the joist 410 and may be disposed over a portion of the joist 410. The bolster 410 may be a prefabricated composite beam or a cast-in-place beam. After the placement of the hollow precast slab relative to the bolster 410 is completed, concrete may be cast in place to form the connection structure and the laminate. The protruding reinforcing bars of the joist 410 may be used as reinforcing bars of the connection structure, or may be separately provided. The connection structure is similar to a T-rib. As an example, the connection structure includes a longitudinal rebar extension 411 and a transverse rebar extension 412, the details of which may be referred to in the foregoing description. The upper portion of the longitudinal rebar extension 411 may or may not be connected to the transverse rebar extension 412. In addition, a transverse reinforcement extension structure is not required. Other details may be found in the previous T-rib content. The protruding rebar structures of the joists 410 may be used as the rebar structures of the connection structure in fig. 17, for example, the protruding rebar structures may be prefabricated or reserved when prefabricating the joists 410, or the protruding rebar structures may be reserved when casting the joists 410 in situ. The manner of coupling with the bolster 420 is described with reference to fig. 17. In this embodiment, the hollow core slab is provided only at both sides of the bolster 420. The hollow precast slab is adjacent to the joist 420 and may be disposed over a portion of the joist 420. The bolster 420 may be a prefabricated composite beam or a cast-in-place beam. After the placement of the hollow precast slab relative to the bolster 420 is completed, concrete may be cast in place to form the connection structure and the laminate. The protruding reinforcing bars of the bolster 420 may be used as reinforcing bars of the connection structure, or may be separately provided. The connection structure is similar to a T-rib. As one example, the connection structure includes a longitudinal rebar extension 421 and a transverse rebar extension 422. The upper portion of the longitudinal rebar extension 421 may be disconnected from the transverse rebar extension 422. In addition, a transverse reinforcement extension structure is not required. Other details may be found in the previous T-rib content. The protruding rebar structures of the joists 420 may be used as the rebar structures of the connection structure in fig. 17, for example, the protruding rebar structures may be prefabricated or reserved when prefabricating the joists 420, or the protruding rebar structures may be reserved when casting the joists 420 in situ.

As shown in fig. 17, blocking heads 150 may be provided at both ends of the hollow structure of the precast hollow slab to prevent concrete from entering the hollow structure when concrete is cast in place.

Fig. 18 shows another embodiment of the combination of the hollow core slab 100 and the bolster 400 shown in fig. 12 (a section in the B-B direction shown in fig. 1). The embodiment of fig. 18 differs from the embodiment of fig. 17 in that a lug structure may be provided on the joist to support the hollow slab. In addition, a lug structure may be provided for the side sill 500. As an example, other similar means than a lug structure may be employed, such as increasing the width of the upper end of the beam, etc.

Fig. 19 shows an embodiment of the combination of T-ribs and joists 400 (section in the B-B direction shown in fig. 1). In the T-shaped rib may be provided an anchoring bar 350, which may be a part of the first bar mentioned earlier, or may be a bar different from the first bar, wherein the anchoring bar 350 may extend to the joists 410 and 420. Anchoring/connecting of the anchor bars 350 at the beam is achieved by cast-in-place concrete, thereby integrating the hollow precast slab 100 with the bolster 400. The rebar structure in the T-rib is better shown in cross-section in fig. 19, as shown in fig. 19, and as an example, the rebar structure in the T-rib may include a first rebar 360 and a stirrup 370, wherein the first rebar 360 may extend in a left-right direction and the stirrup 370 hoops around the first rebar 360, as shown in fig. 19.

The terms "rebar," "rebar structure," "rebar extension," and the like in this disclosure may each be a two-dimensional rebar structure, such as a reinforcement bar, a rebar mesh, or a three-dimensional rebar structure in the form of a rebar cage, and the like. In addition, the form of a prefabricated composite beam or cast-in-situ beam is described above, but the prefabricated composite beam or cast-in-situ beam may be replaced with a prefabricated composite wall or cast-in-situ wall. Further, in the present disclosure, the precast hollow slab may be a precast reinforced concrete prestressed hollow slab or a precast reinforced concrete non-prestressed hollow slab.

In general, the hollow slab is mainly subjected to self-weight and live load, and under the action of gravity, the upper part in the hollow slab generates compressive stress and the lower part generates tensile stress, so that the two forms resisting moment. Concrete is a brittle material which is suitable for compression resistance but not for tension, so that the lower tensile force needs to be borne by the steel bars, the upper compressive force is borne by the concrete, and the lower concrete becomes a load (encumbrance)), namely an excessive dead weight load. By additionally arranging the T-shaped rib, the T-section just accords with the mechanical characteristic, and a large amount of superfluous concrete at the lower part is saved. In the present disclosure, the overlapping T-rib hollow structure belongs to the structural type of cooperative work of T-ribs and overlapping layer hollow plates. When the influence of the dead weight of the structure is not considered: the T-shaped rib and the laminated hollow slab are arranged in the same width, the load is a fixed value, the cross sections of the T-shaped rib and the laminated hollow slab in the same width have basically the same bending resistance, so to speak, the two bending resistant structures are arranged in the same width, and the T-shaped rib and the laminated hollow slab are combined to approximately bear half of the internal force when the T-shaped rib is not arranged, and the stress of the laminated hollow slab in the same width is almost doubled and needs to bear independently. Considering the influence of the dead weight of the structure: the T-shaped ribs reduce their own weight by about 50% compared to the laminated hollow slab, i.e. the effective load carrying capacity of the T-shaped ribs is much greater than that of the laminated hollow slab in the case of equal widths, which means that the mechanical contribution of the T-shaped ribs in the composite structure takes an absolute dominant role. Consider the overlapping effect: the prefabricated component can deform in advance because of replacing the template, the rigidity and the bearing capacity of the cast-in-situ full-size equivalent structure can not be achieved after the laminated layer is poured, the cast-in-situ structure is not broken, that is, the hollow slab of the laminated layer is broken in bearing capacity, and the bearing capacity of the T-shaped rib is not broken. By combining the analysis of the conditions, the hollow structure of the overlapped T-shaped rib is a cooperative structure, the T-shaped rib is a main component and plays a leading role, and the mechanical contribution of the T-shaped rib is the largest. The hollow plate or the laminated hollow plate plays a secondary role, and the mechanical contribution is smaller. If no T-shaped rib exists, the effective bearing capacity of the hollow slab with the pure lamination layers is greatly reduced, generally about 30-75%, and further, the applicable span and economy are also greatly reduced.

In the description of the present specification, reference to the terms "one embodiment/manner," "some embodiments/manner," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/manner or example is included in at least one embodiment/manner or example of the present application. In this specification, the schematic representations of the above terms are not necessarily for the same embodiment/manner or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/modes or examples described in this specification and the features of the various embodiments/modes or examples can be combined and combined by persons skilled in the art without contradiction.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.

It will be appreciated by those skilled in the art that the above-described embodiments are merely for clarity of illustration of the disclosure, and are not intended to limit the scope of the disclosure. Other variations or modifications will be apparent to persons skilled in the art from the foregoing disclosure, and such variations or modifications are intended to be within the scope of the present disclosure.

Claims (25)

1. A laminated T-ribbed hollow structure comprising:

a hollow core slab comprising a slab body and including or not including protruding rebars extending from at least one side of the slab body;

t-shaped ribs disposed in the space between adjacent two hollow plates; and

and the laminated layer is at least arranged on the prefabricated hollow slab, and the laminated layer and the T-shaped rib are integrally formed through cast-in-place concrete.

2. The overlapping T-rib hollow structure of claim 1, wherein a predetermined space is spaced between the adjacent two hollow pre-cast plates, and the T-rib is formed in the predetermined space and the overlapping layer is formed at least over the hollow pre-cast plates by cast-in-place concrete.

3. The overlapping T-ribbed hollow structure of claim 2, wherein a rebar structure is provided over the prefabricated hollow slab, the overlapping layer being formed by cast-in-place concrete.

4. The laminated T-ribbed hollow structure of any one of claims 1 to 3,

the T-ribs include a longitudinally extending rebar structure extending longitudinally between the adjacent two hollow plates relative to a cross-section of the adjacent two hollow plates, and/or

The T-ribs include a transversely extending rebar structure extending transversely in the superimposed layer relative to a cross-section of the hollow precast slab.

5. The overlapping T-ribbed hollow structure of claim 4, wherein,

in the case where the T-rib comprises a longitudinally extending rebar structure, the longitudinally extending rebar structure comprises a first rebar that is diagonal and/or perpendicular relative to the cross-section, and a stirrup for stirrup-tying the first rebar and/or a tie-tie; in the case where the T-shaped rib includes a laterally extending rebar structure, the laterally extending rebar structure is an independently disposed rebar structure and/or is a rebar structure of the laminate layer.

6. The overlapping T-ribbed hollow structure of claim 4, wherein,

the lower ends of the T-shaped ribs are flush with the bottom of the precast hollow slab; or alternatively

The lower ends of the T-shaped ribs protrude outwards relative to the bottom of the precast hollow slab; or alternatively

The lower ends of the T-shaped ribs protrude outwardly relative to the bottom of the hollow core slab and extend transversely relative to the bottom of the hollow core slab; or alternatively

The prefabricated hollow plate is provided with a pocket bottom plate.

7. The overlapping T-rib hollow structure of claim 1, wherein the projecting rebar, if included, is capable of being connected or anchored to the T-rib, to a bolster, and/or to a side rail.

8. The overlapping T-ribbed hollow structure of claim 1, wherein the overlapping T-ribbed hollow structure is used in floor or roofing structures for above-ground or below-ground construction; or a parking level or roof structure for a motorized or non-motorized garage.

9. The overlapping T-rib hollow structure of claim 1, wherein the precast hollow slab is a precast reinforced concrete prestressed hollow slab or a precast reinforced concrete non-prestressed hollow slab.

10. A building, comprising:

a laminated T-rib hollow structure as claimed in any one of claims 1 to 9;

A support column for providing support; and

and the supporting beams are at least partially supported by the supporting columns, and the superposed T-rib hollow structures are at least partially supported by the supporting beams.

11. The building of claim 10, wherein the building is a building,

the projecting bars are provided at the sides of the overlapping T-ribbed hollow structure combined with the joists and are anchored/connected to the joists by cast-in-place concrete, or

The protruding reinforcing bars are not provided at the side of the overlapping T-ribbed hollow structure combined with the joist, and the overlapping T-ribbed hollow structure is connected to the joist by cast-in-place concrete.

12. Building according to claim 11, wherein at the junction of the joist and the superimposed T-ribbed hollow structure, longitudinal reinforcement extension structures and/or transverse reinforcement extension structures are provided, the connection of the joist and the superimposed T-ribbed hollow structure being achieved by cast-in-place concrete, wherein: the longitudinal reinforcement extension structure extends longitudinally relative to the cross section of the bonding location; the transverse reinforcement extension structure extends transversely relative to the cross section of the bonding location.

13. The building according to claim 12, wherein, in case said longitudinal rebar extension is provided, said longitudinal rebar extension comprises a second rebar diagonal and/or perpendicular to the cross-section of said joint position and a stirrup for stirrup-tying said second rebar and/or a tie-tie; in the case of the transverse reinforcement extension structure, the transverse reinforcement extension structure is an independently arranged reinforcement structure and/or a reinforcement structure of the lamination layer.

14. The building of claim 10, wherein the T-ribs include anchoring bars extending to the joists, the connection or anchoring of the anchoring bars to the joists being accomplished by cast-in-place concrete.

15. The building of claim 10 wherein said joists are provided with a lug structure for supporting said overlapping T-ribbed hollow structure.

16. The building of claim 10, further comprising side beams supported by the support columns or the bearing walls and disposed parallel to the hollow core slab.

17. Building according to claim 16, wherein at the junction of the side beams and the superimposed T-rib hollow structure, longitudinal reinforcement extension structures and/or transverse reinforcement extension structures are provided, the connection of the side beams and the superimposed T-rib hollow structure being achieved by cast-in-place concrete.

18. A building, comprising:

a laminated T-rib hollow structure as claimed in any one of claims 1 to 9; and

and the T-rib hollow structure is at least partially supported by the supporting wall.

19. The building of claim 18, wherein the building is a building,

the projecting bars are provided at the sides of the overlapping T-ribbed hollow structure combined with the support wall and are anchored/connected to the support wall by cast-in-place concrete, or

The protruding reinforcing bars are not provided at the side of the overlapping T-ribbed hollow structure combined with the support wall, and the overlapping T-ribbed hollow structure is connected to the support wall by cast-in-place concrete.

20. Building according to claim 19, wherein at the junction of said bearing wall and said superimposed T-ribbed hollow structure, longitudinal rebar extensions and/or transverse rebar extensions are provided, the connection of said bearing wall and said superimposed T-ribbed hollow structure being achieved by cast-in-place concrete, wherein: the longitudinal rebar extension extends longitudinally relative to a cross section of the bond site and the transverse rebar extension extends transversely relative to the cross section of the bond site.

21. A building according to claim 20, wherein, in the case where a longitudinal rebar extension is provided, the longitudinal rebar extension includes a second rebar diagonal and/or perpendicular to the cross-section of the joint and a stirrup for stirrup the second rebar and/or a tie for achieving a drawknot; in the case of a transverse rebar extension, the transverse rebar extension is an independently arranged rebar structure and/or a rebar structure of the superimposed layer.

22. The building of claim 18, wherein the T-ribs include anchoring bars extending to the bearing wall, the connection or anchoring of the anchoring bars to the bearing wall being accomplished by cast-in-place concrete.

23. The building of claim 18 wherein said support wall is provided with a lug structure for supporting said overlapping T-ribbed hollow structure.

24. The building of claim 18, further comprising side beams supported by support columns or bearing walls and disposed parallel to the hollow pre-cast slab.

25. Building according to claim 24, wherein at the junction of the side beams and the superimposed T-rib hollow structure, longitudinal reinforcement extension structures and/or transverse reinforcement extension structures are provided, the connection of the side beams and the superimposed T-rib hollow structure being achieved by cast-in-place concrete.

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