CN215054411U

CN215054411U - Floor for shock-absorbing structure

Info

Publication number: CN215054411U
Application number: CN202120700674.8U
Authority: CN
Inventors: 崔家春; 徐自然; 徐继东; 巫燕贞; 谈凤婕
Original assignee: East China Architectural Design and Research Institute Co Ltd
Current assignee: East China Architectural Design and Research Institute Co Ltd
Priority date: 2021-04-07
Filing date: 2021-04-07
Publication date: 2021-12-07
Anticipated expiration: 2031-04-07

Abstract

The utility model discloses a floor for a damping structure, which comprises a concrete floor body, wherein the insides of the left end and the right end of the concrete floor body are respectively provided with a notch, and the notches are positioned in the middle between the top surface and the bottom surface of the concrete floor body; the inside of concrete floor body is located the notch top and the part of below all is equipped with longitudinal distribution muscle, horizontal distribution muscle and erects the muscle. The utility model discloses can reduce floor off-plate rigidity under the prerequisite that hardly changes floor in-plane rigidity, promote even roof beam shock-absorbing structure's shock attenuation efficiency.

Description

Floor for shock-absorbing structure

Technical Field

The utility model relates to a building technical field, concretely relates to reinforced concrete floor suitable for even roof beam shock-absorbing structure in building.

Background

The connecting beam is widely applied to shear wall structures and frame-tube structure systems and is used as a first anti-seismic defense line for energy consumption. The traditional reinforced concrete coupling beam has the defects of low ductility, difficult repair after damage and the like, the engineering industry proposes that the coupling beam damper is adopted to replace the traditional coupling beam for centralized energy consumption, and the coupling beam damper can realize replacement after earthquake through bolt connection so as to improve the earthquake-resistant toughness of the building. In addition, the arrangement of the coupling beam damper has little influence on the building function. Compared with a viscous damper, the shear type coupling beam damper is simple in stress mechanism, convenient to process, good in durability, low in manufacturing cost and wide in application prospect in the field of building anti-seismic energy dissipation.

However, the out-of-plane stiffness of the floor above the coupling beam damper has a certain effect on the damping efficiency of the coupling beam, and particularly when the thickness of the floor is large, the effect cannot be ignored. Related researches on the reinforced concrete floor slab structure specially used for improving the damping efficiency of the coupling beam are not found in the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a floor for shock-absorbing structure, can reduce floor off-plate rigidity under the prerequisite that hardly changes floor in-plane rigidity, promote even roof beam shock-absorbing structure's shock attenuation efficiency.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a floor slab for a damping structure comprises a concrete floor slab body, wherein notches are respectively formed in the left end and the right end of the concrete floor slab body, and are located in the middle between the top surface and the bottom surface of the concrete floor slab body; the inside of concrete floor body is located the notch top and the part of below all is equipped with longitudinal distribution muscle, horizontal distribution muscle and erects the muscle.

Further, the front end and the rear end of notch extend to the front side and the dorsal part of concrete floor body respectively and communicate with each other with the outside, and the left end that is located the notch of concrete floor body left end extends to the left end face of concrete floor body and communicates with each other with the outside, and the right-hand member that is located the notch of concrete floor body right-hand member extends to the right end face of concrete floor body and communicates with each other with the outside.

Further, the length of the slot is 1/4 of the concrete floor body clear span.

Further, the height of the notch is 5mm-10 mm.

The beneficial effects of the utility model reside in that:

1. the utility model reduces the external rigidity of the floor slab, enhances the external deformation capacity of the floor slab, especially the external deformation capacity under the earthquake action, and improves the damping efficiency of the coupling beam damping structure by arranging the notches at the central line of the two ends of the floor slab, especially the thicker floor slab;

2. the height of the notch of the utility model is generally only within 5% of the thickness of the floor slab, has little influence on the in-plane rigidity of the floor slab, and hardly influences the in-plane force transmission of the floor slab;

3. the utility model discloses only need add the notch on the basis of current reinforced concrete floor structure, and cut apart the arrangement of reinforcement calculation of the upper and lower floor of formation and can adopt existing method, facilitate promotion.

Drawings

Fig. 1 is an application schematic diagram of a floor slab for a shock-absorbing structure in an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of FIG. 1;

fig. 3 is a schematic view of a left end structure elevation of a floor slab for a shock-absorbing structure in an embodiment of the present invention;

fig. 4 is the embodiment of the utility model provides an in the left end structure plane sketch of floor for shock-absorbing structure.

Detailed Description

The present invention will be further described with reference to the accompanying drawings, and it should be noted that the present embodiment is based on the technical solution, and the detailed embodiments and the specific operation processes are provided, but the protection scope of the present invention is not limited to the present embodiment.

As shown in fig. 1, the coupled beam shock-absorbing structure generally comprises coupled beam dampers 3, buttresses 4, wall limbs 5 and floor slabs 1.

The floor slab for the shock absorption structure in the embodiment, as shown in fig. 2 to 4, includes a concrete floor slab body 105, notches 101 are respectively provided inside the left end and the right end of the concrete floor slab body 105, and the notches 101 are located in the middle between the top surface and the bottom surface of the concrete floor slab body 105; the parts of the interior of the concrete floor body 105 above and below the notch 101 are provided with longitudinal distribution ribs 102, transverse distribution ribs 103 and erection ribs 104.

It should be noted that, in this embodiment, a connection line direction between the two side wall limbs is a longitudinal direction (i.e., a left-right direction in fig. 1), the longitudinally distributed ribs refer to reinforcing bars extending in the longitudinal direction and distributed in the transverse direction, the transversely distributed ribs refer to reinforcing bars extending in the transverse direction and distributed in the longitudinal direction, and the erected ribs refer to reinforcing bars extending in the vertical direction and disposed between two layers of the longitudinally distributed ribs.

Further, in this embodiment, the front end and the rear end of the notch 101 extend to the front side and the back side of the concrete floor slab body 105 and communicate with the outside, respectively, the left end of the notch 101 located at the left end of the concrete floor slab body 105 extends to the left end face of the concrete floor slab body 105 and communicates with the outside, and the right end of the notch 101 located at the right end of the concrete floor slab body 105 extends to the right end face of the concrete floor slab body 105 and communicates with the outside.

It should be noted that the left end and the right end of the concrete floor slab body are respectively divided into an upper part and a lower part by the notch, and the upper part and the lower part obtained by the division are respectively provided with a longitudinal distribution rib 102, a transverse distribution rib 103 and a vertical rib 104, which can independently bear positive and negative bending moments.

Further, the length of the notch is determined according to actual deformation requirements, and 1/4 of the clear span of the concrete floor body can be taken generally. The height of the notch can be within 5% of the height of the concrete floor slab body, and generally can be 5mm-10 mm.

The notch structure can be formed by one-time pouring through filling the flexible material at the notch position during manufacturing, and the construction steps are simplified by one-time pouring forming. The flexible material may be a foam.

It should be noted that the floor slab for the damping structure is suitable for a full cast-in-place reinforced concrete floor slab, a prefabricated composite floor slab, a profiled steel sheet composite floor slab and the like.

Various corresponding changes and modifications can be made by those skilled in the art according to the above technical solutions and concepts, and all such changes and modifications should be included in the protection scope of the present invention.

Claims

1. A floor slab for a damping structure is characterized by comprising a concrete floor slab body, wherein notches are respectively formed in the left end and the right end of the concrete floor slab body, and are positioned in the middle between the top surface and the bottom surface of the concrete floor slab body; the inside of concrete floor body is located the notch top and the part of below all is equipped with longitudinal distribution muscle, horizontal distribution muscle and erects the muscle.

2. A floor slab for a shock-absorbing structure according to claim 1, wherein front and rear ends of the notch extend to the front and rear sides of the concrete floor slab body, respectively, and communicate with the outside, a left end of the notch located at the left end of the concrete floor slab body extends to the left end surface of the concrete floor slab body and communicates with the outside, and a right end of the notch located at the right end of the concrete floor slab body extends to the right end surface of the concrete floor slab body and communicates with the outside.

3. A floor slab for a shock absorbing structure as set forth in claim 1, wherein said slot has a length of 1/4 ° of the concrete floor slab body clear span.

4. The floor slab for a shock-absorbing structure according to claim 1, wherein the height of the notch is less than or equal to 5% of the height of the concrete floor slab body.