CN111236489A - Full-strengthening center-aligned oblique-slit steel plate wall structure - Google Patents

Abstract

The invention discloses a full-stressed center-aligned oblique slotted steel plate wall structure, wherein a central symmetric oblique slotted steel plate shear wall is fixed between an upper frame beam and a lower frame beam, and the side surface of the central symmetric oblique slotted steel plate shear wall is provided with a cross plate, wherein the cross plate divides the side surface of the central symmetric oblique slotted steel plate shear wall into four areas, each area is internally provided with a plurality of oblique slots, each oblique slot is parallel to a diagonal line of the area, the diagonal line of each area forms the diagonal line of the central symmetric oblique slotted steel plate shear wall, the left end surface and the right end surface of the central symmetric oblique slotted steel plate shear wall are respectively provided with a vertical stiffening rib, the initial rigidity and the ultimate bearing capacity of the steel plate wall structure are stronger, and the plane of the steel plate wall can be effectively prevented from deforming outwards.

Description

A fully stiffened center paired diagonally slotted steel plate wall structure

technical field

The invention belongs to the field of steel structures, and relates to a fully stiffened center paired oblique slotted steel plate wall structure.

Background technique

In 1999, Kyushu University of Japan and West Japan Technology Development Co., Ltd. carried out research on steel plate shear walls with vertical slits. Through the reasonable opening of vertical slits, the mechanical properties of steel plates can be changed, and they can be used under strong earthquakes. The joint walls form plastic hinges to dissipate seismic energy, and the structure is applied to actual buildings. The force model of the steel plate wall is usually simplified as the oblique tension belt model, and the force of the wall plate is transmitted through the oblique direction, but the vertical seam of the existing vertical seam steel plate shear wall interrupts the transmission of the oblique force in the vertical direction. Therefore, the bearing capacity of the vertical slotted steel plate wall is greatly reduced.

SUMMARY OF THE INVENTION

The purpose of the present invention is to overcome the above-mentioned shortcomings of the prior art, and to provide a fully stiffened center paired diagonally slotted steel plate wall structure, the steel plate wall structure has strong initial rigidity and ultimate bearing capacity, and can effectively prevent the steel plate wall The plane is deformed outward.

In order to achieve the above purpose, the fully stiffened center paired oblique slotted steel plate wall structure according to the present invention includes a center symmetrical oblique slotted steel plate shear wall, and the center symmetrical oblique slotted steel plate shear wall is fixed on the upper frame beam and the lower frame beam. In between, a cross plate is arranged on the side of the centrally symmetric oblique slotted steel plate shear wall, wherein the cross plate divides the side of the centrally symmetric oblique slotted steel plate shear wall into four areas, and each area is provided with a number of oblique plates. Wherein, each diagonal seam is parallel to the diagonal line of the area where it is located, and the diagonal line of each area forms the diagonal line of the centrally symmetric diagonal slotted steel plate shear wall. Vertical stiffening ribs are arranged on both the left and right end surfaces.

The center symmetrical inclined slotted steel plate shear wall is connected with the upper frame beam through the upper end angle steel, and the center symmetrical inclined slotted steel plate shear wall is connected with the lower frame beam through the lower end angle steel.

The number of the cross plates is two, wherein the two cross plates are respectively located on the front side and the rear side of the centrally symmetric inclined slotted steel plate shear wall, and the two cross plates are aligned and distributed.

The four regions are the same size.

The length of each oblique seam in the same area is gradually shortened from the middle to the two sides.

The upper end angle steel and the lower end angle steel are provided with stiffening ribs.

The diagonal slits in the same area are distributed at equal intervals.

The present invention has the following beneficial effects:

During the specific operation of the fully stiffened center-paired oblique slotted steel plate wall structure according to the present invention, a cross plate is provided on the side of the center symmetrical oblique slotted steel plate shear wall, wherein the cross plate shears the center symmetrical oblique slotted steel plate. The side of the force wall is divided into four areas, each area is provided with a number of diagonal slits, and the form of the slits is symmetrically distributed in the center to protect the diagonal tension belt, so that the wall panel is not interrupted by force, which can form an end. At the same time, in order to make up for the reduction of the strength of the wall panel due to the reduction of the slit and limit the out-of-plane buckling of the wall panel, the cross plate is welded to the center symmetrical diagonal slit steel plate shear wall. In addition, vertical stiffeners are welded on both sides of the centrally symmetric slanted slotted steel plate shear wall to improve the bearing capacity of the wallboard and prevent the wallboard from out-of-plane buckling.

Description of drawings

Fig. 1 is the structural representation of the present invention;

Fig. 2 is the hysteresis curve diagram of the traditional steel plate shear wall with vertical slits;

FIG. 3 is a hysteresis curve diagram of the present invention.

Among them, 1 is the center symmetrical diagonal slotted steel plate shear wall, 2 is the upper frame beam, 3 is the lower frame beam, 4 is the upper end angle steel, 5 is the lower end angle steel, 6 is the cross plate, and 7 is the vertical stiffener.

Detailed ways

Below in conjunction with accompanying drawing, the present invention is described in further detail:

Referring to Figure 1, the fully stiffened center-paired oblique slotted steel plate wall structure according to the present invention includes a center symmetrical oblique slotted steel plate shear wall 1, and the center symmetrical oblique slotted steel plate shear wall 1 is fixed on the upper frame beam 2 and the lower part. Between the frame beams 3, a cross plate 6 is arranged on the side of the centrally symmetric oblique slotted steel plate shear wall 1, wherein the cross plate 6 divides the side of the centrally symmetric oblique slotted steel plate shear wall 1 into four areas, each of which is divided into four areas. There are several oblique slits in each area, wherein each oblique slit is parallel to the diagonal line of the area, and the diagonal line of each area forms the diagonal line of the center symmetrical oblique slit steel plate shear wall 1, and the center is symmetrical Vertical stiffeners 7 are provided on both the left and right end surfaces of the slant-slotted steel plate shear wall 1 .

The center symmetrical inclined slotted steel plate shear wall 1 is connected with the upper frame beam 2 through the upper end angle steel 4, and the center symmetrical inclined slotted steel plate shear wall 1 is connected with the lower frame beam 3 through the lower end angle steel 5; the number of cross plates 6 is Two, of which, the two cross plates 6 are respectively located on the front side and the rear side of the centrally symmetrical diagonal slotted steel plate shear wall 1, and the two cross plates 6 are aligned and distributed; the sizes of the four areas are the same; The length of each oblique seam is gradually shortened from the middle to the two sides; stiffeners are provided on the upper end angle steel 4 and the lower end angle steel 5; the oblique seams in the same area are distributed at equal intervals.

The slitting form of the present invention adopts oblique slitting. By making diagonal slits on the wall panel along two diagonal directions, the slitting form is symmetrically distributed in the center, so that the oblique tension belt is protected, and the wall panel is not subjected to stress. Interruption can not only form the plastic hinge at the end, but also do not interrupt the oblique tension band. At the same time, in order to make up for the reduction of the strength of the wall panel due to the reduction of the slit and to limit the out-of-plane buckling of the wall panel, the cross plate 6 is welded to the wall panel. At the same time, vertical stiffeners 7 are welded on both sides of the wallboard, which improves the bearing capacity of the wallboard and prevents the wallboard from out-of-plane buckling.

Claims (7)

1. A fully stiffened center paired oblique slotted steel plate wall structure, characterized in that it comprises a center symmetrical oblique slotted steel plate shear wall (1), and the center symmetrical oblique slotted steel plate shear wall (1) is fixed on the upper frame Between the beam (2) and the lower frame beam (3), a cross plate (6) is provided on the side of the centrally symmetric oblique slit steel plate shear wall (1), wherein the cross plate (6) has the center symmetrical oblique slit. The side surface of the steel plate shear wall (1) is divided into four areas, and each area is provided with a number of oblique slits, wherein each oblique slit is parallel to the diagonal line of the area, and the diagonal line of each area forms the center Vertical stiffeners (7) are provided on both the left and right end surfaces of the diagonal line of the symmetrically slanted slotted steel plate shear wall (1) and the centrally symmetrical oblique slotted steel plate shear wall (1). 2. The fully stiffened center paired oblique slotted steel plate wall structure according to claim 1 is characterized in that the center symmetrical oblique slotted steel plate shear wall (1) passes through the upper end angle steel (4) and the upper frame beam (2) Connected, the center symmetrical inclined slotted steel plate shear wall (1) is connected with the lower frame beam (3) through the lower end angle steel (5). 3. The fully stiffened center pair according to claim 1 is characterized in that, the number of the cross plates (6) is two, wherein the two cross plates (6) are respectively located at the center symmetrically inclined. On the front side and rear side of the slotted steel plate shear wall (1), two cross plates (6) are aligned and distributed. 4. The fully stiffened center-paired slant-slotted steel plate wall structure according to claim 1, wherein the size of the four regions is the same. 5 . The fully stiffened center-paired steel plate wall structure with diagonal slits according to claim 1 , wherein the length of each diagonal seam in the same area is gradually shortened from the middle to both sides. 6 . 6. The fully stiffened center paired slanted slotted steel plate wall structure according to claim 2, characterized in that stiffeners are provided on both the upper end angle steel (4) and the lower end angle steel (5). 7 . The fully stiffened center-paired steel plate wall structure with diagonal slits according to claim 1 , wherein the diagonal slits in the same area are distributed at equal intervals. 8 .

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