CN206800743U - A kind of two-way steel plate concrete composite floor - Google Patents

Abstract

The utility model provides a kind of two-way steel plate concrete composite floor, and it includes bottom steel plate, peg, bottom two-way concrete slab, two-way honeycomb riser, two-way steel lath band, top two-way concrete slab and cast-in-place concrete；The bottom steel plate is placed in the bottom of floor；The peg is the shearing-resistant member being welded at a certain distance on the bottom steel plate；The bottom two-way concrete slab is the bottom reinforcement bars of bidirectional arrangements in cast-in-place concrete, on the bottom steel plate；The two-way honeycomb riser is formed by steel plate cutting, and bidirectional arrangements are vertically welded in the cellular riser on the bottom steel plate；The two-way steel lath band is the steel plate strip band of narrower width, respectively the two-way rigidity for being vertically welded at the top of honeycomb riser, increasing cellular board.Two-way steel plate concrete composite floor provided by the utility model, both meet to construct, lift and the construction requirement such as casting concrete, and meet bidirectional stress feature from construction.

Description

A two-way steel plate concrete composite floor

technical field

The utility model relates to the technical field of building structures, in particular to a two-way steel plate concrete composite floor.

Background technique

Due to its good ductility and seismic performance, high bearing capacity and ease of construction, steel plate concrete structures are increasingly widely used in civil and industrial buildings. At present, the structure of the steel plate concrete composite floor that is widely used is a complete steel plate at the bottom, unidirectional T-shaped steel is welded on the steel plate (which can not only ensure the rigidity of the steel plate hoisting but also improve the bearing capacity of the floor), and the top is equipped with two-way steel bars. This floor structure has certain limitations. First, the floor structure has obvious unidirectionality. However, in the actual structure, the size and boundary conditions of the floor determine that most of the force on the floor should be a two-way slab, and structural defects will greatly affect the force transmission of the floor, thereby affecting the overall bearing capacity and deformation capacity of the floor. Second, when the floor slab is subjected to out-of-plane shear force, the existence of unidirectional T-shaped steel interrupts the continuity of the short concrete columns with oblique sections under compression and affects the shear resistance of the floor slab. Third, the existence of solid web T-shaped steel leads to the unidirectional distribution of the steel bars at the bottom of the slab, which is not good for the two-way restraint of the bottom steel bars, and also affects the two-way free flow of self-compacting concrete, affecting the compactness of the concrete. Therefore, there is an urgent need for a utility model of a two-way steel plate concrete composite floor that not only meets construction requirements such as construction, hoisting and pouring concrete, but also meets the two-way stress characteristics from the structure.

Utility model content

Aiming at the deficiencies of the prior art, the utility model proposes a two-way steel plate concrete composite floor.

The utility model provides a two-way steel plate concrete composite floor, which comprises bottom steel plates, studs, bottom two-way steel bars, two-way honeycomb risers, two-way steel plate strips, top two-way steel bars and cast-in-situ concrete; Bottom; the studs are shear members welded on the bottom steel plate at a certain interval; the bottom two-way reinforcement is a bottom reinforcement arranged in two directions in cast-in-place concrete, located on the bottom steel plate; the two-way honeycomb The riser is cut from a steel plate, and the honeycomb riser is vertically welded on the bottom steel plate in two directions; the two-way steel plate strip is a narrow steel plate strip, which is vertically welded on the top of the honeycomb riser in two directions, The rigidity of the honeycomb panel is increased; the top two-way reinforcement is the upper reinforcement in the cast-in-place concrete, arranged in two directions; the cast-in-place concrete is formed after all other components are installed.

Preferably, the bottom steel plate is a complete steel plate, which is connected with the cast-in-place concrete through studs and transmits shear force, so as to form a whole.

Preferably, the two-way honeycomb riser is cut from a steel plate, and the honeycomb riser vertically welded on the bottom steel plate is arranged in two directions, which facilitates the two-way arrangement of the bottom two-way reinforcement and the two-way free flow of the cast-in-situ concrete, ensuring that the The density of poured concrete.

Preferably, the two-way honeycomb riser increases rigidity by welding two-way steel strips at the top, so as to ensure the smooth lifting of the steel plate and control the deformation of the formwork for pouring concrete.

Compared with the prior art, the utility model has the following beneficial effects:

1. The two-way steel plate concrete composite floor provided by the utility model not only meets the construction requirements of construction, hoisting and pouring concrete, but also meets the two-way stress characteristics from the structure.

2. The two-way steel plate concrete composite floor slab provided by the utility model has better two-way rigidity of the bottom steel plate, which is convenient for hoisting in place, and can be used as a concrete formwork to facilitate construction and reduce formwork costs; the combination of the two-way honeycomb vertical plate and its top steel strip It can ensure the rigidity of the bottom steel plate, reduce the amount of steel used, and facilitate the circulation of concrete and the passage of the bottom steel bar; the utility model ensures the two-way bearing capacity and stiffness of the composite floor from the structure, and improves the two-way force of the composite floor bearing capacity and deformation properties.

Description of drawings

Fig. 1 is a schematic cross-sectional view of a two-way steel plate concrete composite floor of the present invention.

Fig. 2 is a partial axonometric schematic view of the steel bar and the steel plate of the utility model.

Fig. 3 is a schematic diagram of construction and concrete pouring sequence of the utility model.

detailed description

In order to make the above purpose, features and advantages of the utility model more obvious and understandable, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figures 1 and 2, the two-way steel plate concrete composite floor includes bottom steel plates (1), studs (2), bottom two-way steel bars (3), two-way honeycomb risers (4), and two-way steel strips (5 ), top two-way reinforcement (6) and cast-in-place concrete (7); the bottom steel plate (1) is the main component in the composite floor, placed at the bottom of the floor; the studs (2) are welded at a certain distance The shear member on the bottom steel plate; the bottom two-way steel bar (3) is the bottom steel bar arranged in two directions in the cast-in-place concrete (7), and is located on the bottom steel plate (1); the two-way honeycomb riser (4) is It is cut from a steel plate, and the honeycomb vertical plate welded vertically on the bottom steel plate (1) is arranged in two directions; 4) top, increase the rigidity of honeycomb panel; described top two-way steel bar (6) is the upper steel bar in cast-in-place concrete (7), two-way arrangement; After the other parts are installed, they will be cast in place.

The bottom steel plate (1) is a complete steel plate, which is connected with the cast-in-place concrete (7) through studs (2) and transmits shear force, thereby forming a whole.

The two-way honeycomb riser (4) is cut from the steel plate, and the honeycomb riser vertically welded on the bottom steel plate (1) is arranged in two directions, which is convenient for the two-way arrangement of the bottom two-way reinforcement (3) and the two-way placement of the cast-in-place concrete (7). Free flow ensures compactness of cast-in-place concrete (7). The two-way honeycomb riser (4) increases the rigidity by welding the two-way steel strip (5) at the top, thereby ensuring the smooth lifting of the steel plate and controlling the deformation of the formwork for pouring concrete.

In the actual construction process, the construction of the composite floor slab of the present invention and the concrete pouring process are shown in Figure 3, and are described in detail as follows:

①Weld the stud 2 to the prepared bottom steel plate 1 according to the design position and requirements.

②Put the two-way steel bar 3 at the bottom to the corresponding position according to the design requirements, and do not bind it temporarily.

③Weld the two-way honeycomb riser 4 to the bottom steel plate 1 according to the design requirements, and adjust the position of the bottom two-way steel bar 3 properly during the process, and tie the steel bar to fix its position.

④ The two-way steel plate strip 5 is welded to the top of the two-way honeycomb riser 4; this step can also be completed before step ③, depending on the convenience of the construction operation.

⑤ Bind and fix the two-way steel bars 6 at the top according to the design requirements.

⑥Finally, after the steel plate and steel bars are hoisted in place as a whole, the formwork is cast and the concrete is poured.

The composite floor slab of the utility model ensures that the two-way bearing capacity and deformation performance are similar in structure, improves the overall performance and material utilization rate of the floor slab, and is convenient for construction and installation, and the concrete has good compactness and integrity.

Compared with the prior art, this embodiment has the following beneficial effects:

1. The two-way steel plate concrete composite floor provided in this embodiment not only meets the construction requirements of construction, hoisting and concrete pouring, but also meets the two-way force bearing characteristics from the structure.

2. The two-way steel plate concrete composite floor slab provided in this embodiment has better two-way rigidity of the bottom steel plate, which is convenient for hoisting in place, and can be used as a concrete formwork to facilitate construction and reduce formwork costs; the combination of the two-way honeycomb vertical plate and its top steel strip It can ensure the rigidity of the bottom steel plate, reduce the amount of steel used, and facilitate the circulation of concrete and the passage of the bottom steel bar; the utility model ensures the two-way bearing capacity and stiffness of the composite floor from the structure, and improves the two-way force of the composite floor bearing capacity and deformation properties.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other. As for the system disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and for relevant information, please refer to the description of the method part.

Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present invention.

Apparently, those skilled in the art can make various changes and modifications to the utility model without departing from the spirit and scope of the utility model. In this way, if these modifications and variations of the utility model fall within the scope of the claims of the utility model and their equivalent technologies, the utility model is also intended to include these modifications and variations.

Claims (4)

1. A two-way steel plate concrete composite floor, is characterized in that: comprise bottom steel plate, stud, bottom two-way steel bar, two-way honeycomb riser, two-way steel plate band, top two-way steel bar and cast-in-situ concrete; Described bottom steel plate is placed on floor The bottom of the bottom; the studs are shear parts welded on the bottom steel plate at a certain interval; the bottom two-way reinforcement is the bottom reinforcement arranged in two directions in the cast-in-place concrete, and is located on the bottom steel plate; the two-way The honeycomb riser is cut from a steel plate, and the honeycomb riser is vertically welded on the bottom steel plate in two directions; the two-way steel plate strip is a narrow steel plate strip, which is vertically welded on the top of the honeycomb riser in two directions , to increase the rigidity of the honeycomb panel; the top two-way reinforcement is the upper reinforcement in the cast-in-place concrete, arranged in two directions; the cast-in-place concrete is formed after all other components are installed. 2. The two-way steel plate concrete composite floor according to claim 1, characterized in that: the bottom steel plate is a complete steel plate, which is connected with cast-in-situ concrete through studs and transmits shear force, thereby forming a whole. 3. The two-way steel plate concrete composite floor according to claim 1, characterized in that: the two-way honeycomb riser is cut from a steel plate, and the honeycomb riser vertically welded on the bottom steel plate is arranged in two directions, which is convenient for the bottom The two-way arrangement of two-way steel bars and the two-way free flow of cast-in-place concrete ensure the compactness of cast-in-place concrete. 4. The two-way steel plate concrete composite floor according to claim 1, characterized in that: the two-way honeycomb riser is welded with two-way steel plate strips on the top to increase the rigidity, thereby ensuring the smooth lifting of the steel plate and controlling the deformation of the formwork for pouring concrete.