CN103541494B - Power consumption girder steel and processing method thereof - Google Patents

Abstract

The invention provides an energy-dissipating steel beam, which is mainly composed of a porous steel plate, an internal elliptical hole, an energy-dissipating elliptical plate, an energy-dissipating cross plate, an anchor bolt, a backing plate and the like. It is characterized in that: the energy-dissipating steel beam is provided with a plurality of porous steel plates; each porous steel plate is provided with a plurality of internal elliptical holes, and the internal elliptical holes have the same shape and size, all of which are elliptical, and the major axis of the ellipse is in the vertical direction. The axis coincides with the midline of the perforated steel plate. Between the perforated steel plates, an energy-dissipating elliptical plate is arranged at the position corresponding to each internal elliptical hole, and the long axis of the ellipse is in the horizontal direction, and the long axis is consistent with the center line of the perforated steel plate. An energy-dissipating cross plate is arranged on the outer side of the plurality of perforated steel plates corresponding to the positions where the elliptical holes are arranged inside. The effect and advantage of the present invention are that it has relatively large initial rigidity, can dissipate energy better under the action of wind vibration and earthquake, bears uniform force, is stable, has simple structure, and is economical and practical.

Description

Energy-dissipating steel beam and its processing method

technical field

The invention relates to an energy-dissipating steel beam, in particular to an energy-dissipating steel beam for a building structure and a processing method thereof.

Background technique

Because metal materials have good hysteresis properties after the elastic-plastic range, they are used to manufacture various types of energy-dissipating devices. The mild steel damper is to make full use of the good post-yield performance of mild steel, and has good hysteresis characteristics after entering the plastic stage. In 1972, Kelly first conducted research and experiments on metal dampers; in 1991, Wittaker et al. and in 1992, Tsai et al. studied the shock absorption characteristics of X-type mild steel damper (XADAS) and triangular mild steel damper (TADAS) respectively. . At present, these two dampers are mild steel dampers that have been studied more at home and abroad. Because the mild steel damper has the advantages of stable hysteretic characteristics, good low fatigue performance, strong adaptability to the environment and temperature, and long-term performance stability, it has attracted widespread attention from scholars at home and abroad, and has begun to be used in some buildings. . The disadvantages of mild steel dampers are: poor recoverability, and its hysteretic energy dissipation performance is significantly affected by its shape. If the shape is not made properly, it will cause distortion of the hysteresis loop.

Under the action of dynamic load, beams often have large deformations. However, the energy consumption of beams has not been paid enough attention. Once they are damaged, they will lose their spatial support for columns and lose their support for building roofs.

Contents of the invention

The object of the present invention is to provide an energy-dissipating steel beam, mainly for improving the deformation capacity and energy-dissipating capacity of the beam under dynamic load.

The purpose of the present invention is achieved through the following technical solutions:

The energy-dissipating steel beam is mainly composed of perforated steel plates, elliptical holes inside, energy-dissipating elliptical plates, energy-dissipating cross plates, anchor bolts and backing plates. A plurality of internal elliptical holes are provided, and the shape and size of the internal elliptical holes are the same, all of which are elliptical. The major axis of the ellipse is in the vertical direction, and the minor axis is consistent with the center line of the perforated steel plate. Between the perforated steel plates, an energy-dissipating elliptical plate is arranged at the position corresponding to each internal elliptical hole, and the long axis of the ellipse is in the horizontal direction, and the long axis is consistent with the center line of the perforated steel plate. Between the perforated steel plates, backing plates are arranged at both ends. An energy-dissipating cross plate is arranged on the outer side of the plurality of perforated steel plates corresponding to the positions where the elliptical holes are arranged inside. The two long-axis ends of the energy-dissipating elliptical plate, the four ends and the center of the energy-dissipating cross plate are connected and fixed by anchor bolts and perforated steel plates. The energy-dissipating steel beams are installed on the steel columns with bolts through the screw holes.

Processing method: a. Cut the perforated steel plate (1), open the elliptical hole (2) and the anchor bolt hole; b. Use the elliptical steel plate cut in a as the energy-dissipating elliptical plate (3), and open the anchor bolt hole; c. . Cut the energy-dissipating cross plate (4), and open the anchor holes; d. Place the cut energy-dissipating cross plate (4) horizontally, and arrange the anchor bolts (5) respectively, and install the perforated steel plate (1) through the anchor bolts (5). ), and install the energy-dissipating elliptical plate (3) on the perforated steel plate (1), then install the perforated steel plate (1) and the energy-dissipating elliptical plate (3) through the anchor bolt (5), and finally pass through the anchor bolt (5 ) Install a perforated steel plate (1) and multiple energy-dissipating cross plates (4) and anchor all anchor bolts.

The effect and advantage of the present invention are that it has relatively large initial rigidity, can dissipate energy better under the action of wind vibration and earthquake, bears uniform force, is stable, has simple structure, and is economical and practical.

Description of drawings

Fig. 1 is the schematic diagram of the front view of the energy-dissipating steel beam structure of the present invention;

Fig. 2 is a schematic top view of the energy-dissipating steel beam structure of the present invention.

In the figure, 1 is a porous steel plate; 2 is an elliptical hole inside; 3 is an energy-dissipating elliptical plate; 4 is an energy-dissipating cross plate; 5 is an anchor bolt; 6 is a backing plate; 7 is a screw hole.

Detailed ways

The present invention will be described in detail below in combination with technical solutions and with reference to the accompanying drawings.

The energy-dissipating steel beam proposed by the present invention is shown in Figures 1-2. The whole device is mainly composed of perforated steel plate 1, inner elliptical hole 2, energy-dissipating elliptical plate 3, energy-dissipating cross plate 4, anchor bolt 5, backing plate 6 and screw hole 7, etc.

According to actual requirements, the perforated steel plate 1 is cut, and an oval hole 2 and an anchor bolt hole are arranged inside. Use the elliptical steel plate cut out in a as the energy-dissipating elliptical plate 3, and open anchor bolt holes. Cut the energy-dissipating cross plate 4 and open the anchor holes. Fix each part with anchor bolt 5. Install the energy-dissipating steel beam on the steel column through the screw hole 7 with bolts.

Claims (2)

1. a power consumption girder steel, by stephanoporate steel plate (1), in establish elliptical aperture (2), power consumption ellipse (3), power consumption cross board (4), crab-bolt (5), backing plate (6) and screw (7) to form, it is characterized in that: the girder steel that consumes energy arranges multiple stephanoporate steel plate (1), each stephanoporate steel plate (1) all arrange multiple in establish elliptical aperture (2), inside establish elliptical aperture (2) shape size identical, be ellipse, oval major axis is vertical direction, minor axis is consistent with stephanoporate steel plate (1) center line, elliptical aperture (2) is inside established to be uniformly distributed, between stephanoporate steel plate (1), establish position corresponding to elliptical aperture (2) that power consumption ellipse (3) is set in each, oval major axis is horizontal direction, major axis is consistent with stephanoporate steel plate (1) center line, between stephanoporate steel plate (1), two ends arrange backing plate (6) respectively, the position of elliptical aperture (2) is established in the outside correspondence of multiple stephanoporate steel plate (1), power consumption cross board (4) is set, in two major axis ends of power consumption ellipse (3), four ends of power consumption cross board (4) and center adopt crab-bolt (5) and stephanoporate steel plate (1) to be connected and fixed, adopt bolt will consume energy steel girder erection on steel column by screw (7).

2. the processing method of girder steel that consumes energy as claimed in claim 1: it is characterized in that:

A, cutting stephanoporate steel plate (1), Kai Nei establishes elliptical aperture (2) and anchor hole;

B, using the oval steel plate under cutting out in a as power consumption ellipse (3), open anchor hole;

C, cutting power consumption cross board (4), open anchor hole;

D, will consume energy cross board (4) horizontal positioned, and arrange crab-bolt (5) respectively, through crab-bolt (5), stephanoporate steel plate (1) is installed, and upper installation power consumption ellipse (3) of stephanoporate steel plate (1), through crab-bolt (5), stephanoporate steel plate (1) and power consumption ellipse (3) are installed respectively again, eventually pass through crab-bolt (5) and a slice stephanoporate steel plate (1) and multi-disc are installed consume energy cross board (4) by all crab-bolt anchorings.