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Simulation method of non-stiffened steel plate shear wall with circular arc cut

A technology of steel plate shear wall and simulation method, applied in geometric CAD, design optimization/simulation, special data processing application, etc., can solve the problem of reducing the lateral bearing capacity of steel plate shear wall and the vertical load of unstiffened steel plate shear wall There is no improvement, no verification and other problems, to achieve the effect of scientific and reasonable parameter selection range, shorten the construction period, and avoid excessive arc incision

Active Publication Date: 2020-04-28
QINGDAO TENGYUAN DESIGN ACCOUNTANTS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The steel plate shear wall can form a sufficient "tension field" without significantly reducing the lateral bearing capacity. The essence is to protect the steel on both sides of the shear wall without greatly reducing the lateral bearing capacity column, but there is no improvement for the non-stiffened steel plate shear wall that will be affected by the vertical load during construction and use; in addition, the steel plate shear wall does not involve the specification parameters of the openings opened on the embedded thin steel plate , and this is precisely the key factor affecting the lateral bearing capacity of the steel plate shear wall, and there is no effective method to verify and obtain the parameters such as the opening size and specifications of the steel plate shear wall

Method used

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  • Simulation method of non-stiffened steel plate shear wall with circular arc cut
  • Simulation method of non-stiffened steel plate shear wall with circular arc cut
  • Simulation method of non-stiffened steel plate shear wall with circular arc cut

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Experimental program
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Embodiment 1

[0037] Such asfigure 1 As shown, the main structure in this embodiment includes a top frame beam 1, a bottom frame beam 2, a left frame column 3, a right frame column 4, and an embedded steel plate 5, and the embedded steel plate 5 is connected to the top frame beam 1 and the bottom frame beam 2. Connect, connect with left and right frame column (3,4). The horizontal side of the embedded steel plate 5 includes the upper side and the lower side. In this embodiment, the upper side of the embedded steel plate 5 is provided with an upper arc-shaped incision 6, and the arc length L of the upper arc-shaped incision 6 is c is the horizontal direction, arc height H c for vertical.

[0038] During fabrication, first determine the height and span of the embedded steel plate according to the height of the frame columns (3, 4) and the span of the frame beams (1, 2) of the proposed building; To meet the requirements of bearing capacity and energy dissipation capacity, the thickness and m...

Embodiment 2

[0041] This embodiment has been improved on the basis of Embodiment 1, such as figure 2 As shown, the difference is that in this embodiment, the lower side of the embedded steel plate 5 is also provided with a lower arc-shaped cutout 7, and the two arc-shaped cutouts (6, 7) correspond to the upper and lower sides, and are all located on the embedded steel plate. 5. At the middle position of the horizontal side, the lower arc-shaped incision 7 has the same size and parameter settings as the upper arc-shaped incision 6. The arc length is L c is the horizontal direction, the arc height H c for vertical.

Embodiment 2

[0042] In conjunction with embodiment two, this method is described as follows:

[0043] (1) The top frame beam 1 and the bottom frame beam 2 use the I-shaped section of 600×300×30×40mm, the left frame column 3 and the right frame column 4 use the box-shaped section of 400×400×50mm, and the embedded steel plate 5 The span L e and height are 3000mm, thickness t w The height-to-thickness ratio λ is 300. The embedded steel plate 5 is made of Q235 steel with a low yield point. The top frame beam 1, the bottom frame beam 2, the left frame column 3, and the right frame column 4 are all Q345 steel. The arc length L of 5 c and arc height H c is a parameter variable, and the parameters of the non-stiffened steel plate shear wall specimen are shown in Table 1, in which SPSW is a conventional non-stiffened steel plate shear wall specimen, and L1-1~L1-4, L2-1~L2-4 are two groups of Arc length L c is a parameter variable of non-stiffened steel plate shear wall specimens, H3-1~H3-4, H4...

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Abstract

The invention discloses a simulation algorithm for an unstiffened steel plate shear wall with an arc-shaped cut. The algorithm comprises the following steps of designing a plurality of test pieces, with different sizes, of the unstiffened steel plate shear wall with the arc-shaped cut; building test piece models in finite element software; performing analysis to obtain a vertical load ratio zeta of embedded steel plates under the action of a vertical load, lateral bearing capacity FpH of the embedded steel plates under the action of a horizontal load, and lateral bearing capacity FpHV of the embedded steel plates under the action of the horizontal load and the vertical load for the test pieces of the steel plate shear wall, drawing a relational curve of zeta and frame beam deflection omega, drawing a relational curve of FpH and an interlayer displacement angle theta, and drawing a relational curve of FpHV and theta; calculating an elastic lateral bearing capacity reduction rate psi of the embedded steel plates under the action of the vertical load according to the elastic lateral bearing capacity FpH and FpHV; and obtaining an arc length-to-span ratio range and an arc height value range of the arc-shaped cut. According to the algorithm, the negative influence of the vertical load on the lateral bearing capacity of the embedded steel plates can be reduced.

Description

technical field [0001] The invention relates to a steel plate shear wall, which belongs to the technical field of construction engineering, in particular to a method for simulating a non-stiffened steel plate shear wall with circular arc cuts. Background technique [0002] Steel plate shear walls are a new type of lateral force-resisting member developed in the 1970s. According to different structural forms, steel plate shear walls can be divided into five categories: non-stiffened steel plate shear walls, stiffened steel plate shear walls, buckling-resistant Steel plate shear wall, steel plate combined shear wall and slotted steel plate shear wall. Compared with reinforced concrete shear walls, steel plate shear walls are small in size, light in weight, increase the usable area of ​​the house, reduce foundation cost, and have good economic benefits. At the same time, they also have large lateral stiffness, high shear bearing capacity, and ductility Therefore, the steel pla...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/13G06F30/23
CPCG06F30/13G06F30/23
Inventor 郁有升胡海涛李建峰井彦青孙绍东
Owner QINGDAO TENGYUAN DESIGN ACCOUNTANTS CO LTD