CN207110102U - A kind of circular section reducing low-yield rod iron dissipative cell - Google Patents

Abstract

The utility model relates to the field of building energy dissipation and shock absorption, in particular to a steel bar energy dissipation element with a circular cross-section variable diameter and low yield point. The energy dissipation element is composed of a small-diameter damping section in the middle, large-diameter damping sections located at both ends of the small-diameter damping section, a transition section between them and anchoring ends at both ends of the element. The energy-dissipating element is made of steel with a low yield point, and an array-type damper can be formed based on the energy-dissipating element. The energy dissipating element has the advantage of isotropy, and can dissipate energy generated in any direction under earthquake action. And it is supported by point yield point steel, which has good energy dissipation performance.

Description

Energy-dissipating element of steel bar with circular cross-section variable diameter and low yield point

technical field

The utility model relates to the field of energy-dissipating and shock-absorbing devices for building structures, in particular to an energy-dissipating element of a steel rod with a circular cross-section, variable diameter and low yield point.

Background technique

my country is a country with a high incidence of earthquakes, and huge property losses are caused by earthquake disasters every year. For old buildings, due to the long history of construction, the earthquake resistance measures are not fully considered, and the damage suffered by earthquakes is often more serious. The anti-seismic reinforcement method for old buildings can effectively improve their anti-seismic capacity. The energy-dissipating and shock-absorbing components installed on the building structure help the main structure dissipate the seismic energy by generating friction, elastic-plastic hysteretic deformation, etc., so as to reduce the seismic response of the structure and ensure the safety of the structure. In practical engineering, steel with low yield point is often used for metal dampers, which have the advantages of strong plastic deformation capacity, stable hysteretic performance, and good low-cycle fatigue characteristics. The traditional metal damper energy-dissipating unit is a plate-type energy-dissipating element. Although this energy-dissipating element is widely used, its mechanical properties are uneven and its material utilization rate is low. For this reason, the utility model proposes a rod energy-dissipating element, which has the advantages of balanced mechanical properties and good energy-dissipating effect.

Contents of the invention

In view of the above problems, the utility model provides an energy-dissipating element of steel rods with circular cross-sections, reduced diameters and low yield points, which is used to reinforce old buildings and improve the seismic performance of the structures.

The technical scheme adopted by the utility model is: a circular cross-section variable-diameter low-yield-point steel rod energy-dissipating element, including a small-diameter energy-dissipating section, a large-diameter energy-dissipating section, a transition section and an anchoring section; the small-diameter energy-dissipating section Both the section and the large-diameter energy-consuming section are cylinders with the same length and diameter, and the transition section is a frustum of circular geometry; the small-diameter energy-consuming section is placed vertically in the middle, and the two ends are respectively connected by a transition section with a large-diameter An energy dissipation section; the smaller end face of the transition section is connected to the small diameter energy dissipation section, and the larger end surface is connected to the large diameter energy dissipation section; anchoring sections are provided at both ends of the large diameter energy dissipation section;

The energy-dissipating elements of circular cross-section variable-diameter low-yield-point steel rods are arranged in an array, and the anchor section is welded or bolted to the end plate to form an array damper.

As a preferred technical solution: the small-diameter energy-dissipating section, the large-diameter energy-dissipating section, the transition section and the anchoring section are all made of low yield point steel.

As a preferred technical solution: the diameter of the small-diameter energy-dissipating section is smaller than the diameter of the large-diameter energy-dissipating section, and the diameter of the small end surface of the transition section is equal to the diameter of the small-diameter energy-dissipating section, and the diameter of the large end surface of the transition section is It is equal to the diameter of the large-diameter energy-dissipating section.

The beneficial effects of the utility model are: (1) The low-yield point steel rod body is made into the energy-dissipating element of the damper. The steel plate energy dissipator can only dissipate energy in one direction; (2) The energy dissipating element made just now with a low yield point has a good energy dissipating effect. By rationally setting the number and arrangement of energy-dissipating elements, an array damper is formed and placed in key parts of the structure to achieve a good energy-dissipating effect.

Description of drawings

Fig. 1 is a structural schematic diagram of a circular cross-section variable-diameter low-yield-point steel rod energy-dissipating element;

Fig. 2 is a schematic diagram of an array damper composed of energy-dissipating elements of circular cross-section variable-diameter low-yield-point steel rods;

Fig. 3 is an engineering installation and fixing plan diagram of a circular cross-section variable-diameter low-yield-point steel rod energy-dissipating element;

In the figure: 1 small diameter energy dissipation section, 2 large diameter energy dissipation section, 3 transition section, 4 anchor section, 5 array type damper, 6 end plate, a beam, b column, c steel support.

Detailed ways

In order to further illustrate the utility model, the utility model will be described in detail below in conjunction with the accompanying drawings and embodiments, but they should not be understood as limiting the protection scope of the utility model.

With reference to the accompanying drawings, an energy-dissipating element of a steel bar with a circular cross-section variable diameter and low yield point includes a small-diameter energy-dissipating section 1, a large-diameter energy-dissipating section 2, a transition section 3, and an anchoring section 4; the small-diameter energy-dissipating section 1 and the large-diameter energy-dissipating section 2 are cylinders with the same length and diameter, and the transition section 3 is a circular frustum geometry; the small-diameter energy-dissipating section 1 is vertically placed in the middle, and the two ends are respectively connected by the transition section 3 There is a large-diameter energy dissipation section 2; the smaller end face of the transition section 3 is connected to the small-diameter energy dissipation section 1, and its larger end surface is connected to the large-diameter energy dissipation section 2; the large-diameter energy dissipation section 2 is two Each end is provided with an anchor segment 4;

The energy-dissipating elements of circular cross-section variable-diameter low-yield point steel rods are arranged in an array, and the array damper 5 is formed by welding or bolting the anchor segment 4 and the end plate 6 .

The small-diameter energy-dissipating section 1 , the large-diameter energy-dissipating section 2 , the transition section 3 and the anchoring section 4 are all made of low yield point steel.

The diameter of the small-diameter energy consumption section 1 is smaller than the diameter of the large-diameter energy consumption section 2, and the diameter of the small end surface of the transition section 3 is equal to the diameter of the small-diameter energy consumption section 1, and the diameter of the large end surface of the transition section 3 is the same as the large diameter The energy consumption section 2 has the same diameter.

The specific embodiment of the utility model is described in detail below with reference to accompanying drawing 2 and 3:

As shown in Figure 2, the array type damper 5 is formed by arranging energy-dissipating elements of circular cross-section low-yield point steel rods in a 2×2 array according to the utility model, and the small-diameter energy-dissipating section 1 is used as the middle damping part , the large-diameter energy-dissipating section 2 is used as the damping part at both ends of the small-diameter energy-dissipating section 1, and the two are connected by a transition section 3, and the anchoring section 4 is located at the upper and lower ends of the large-diameter energy-dissipating section 2 for connecting with the end plate 6 formed by welding or bolting;

In specific use, the array type damper 5 is installed at the position where the structure needs to be reinforced, as shown in Figure 3; the beam a and the column b overlap each other vertically to form a rectangular frame, and the four corners of the rectangular frame are respectively inclined downwards and provided with steel bars. Support c, the steel support c is connected to the array damper 5; that is, the array damper 5 shown in Figure 3 is connected and fixed with the building structure through the end plate 6, thereby providing additional stiffness and additional damping for the structure, and exerting The multiple energy dissipation and shock absorption functions of the energy dissipator.

The above is only a preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made, these improvements and Retouching should also be regarded as the scope of protection of the present utility model.

Claims (3)

1. A kind of 1. circular section reducing low-yield rod iron dissipative cell, it is characterised in that：Including minor diameter power consumption section（1）, it is big straight Consume energy section in footpath（2）, changeover portion（3）And anchoring section（4）；Described minor diameter power consumption section（1）With major diameter power consumption section（2）It is The equal cylinder of elongated diameter, described changeover portion（3）For round platform solid；Described minor diameter power consumption section（1）It is vertically placed to Center, both ends pass through changeover portion respectively（3）It is connected with a major diameter power consumption section（2）；Changeover portion（3）Small end face with it is small straight Consume energy section in footpath（1）Connect, it is compared with large end face and major diameter power consumption section（2）Connect；Described major diameter power consumption section（2）Both ends are all provided with There is anchoring section（4）；

   Described circular section reducing low-yield rod iron dissipative cell uses the arrangement mode of array, passes through anchoring section（4）With end Plate（6）Welded or bolted to form array damper（5）.
2. A kind of 2. circular section reducing low-yield rod iron dissipative cell according to claim 1, it is characterised in that：Described Minor diameter power consumption section（1）, major diameter power consumption section（2）, changeover portion（3）And anchoring section（4）Non- Low Yield Point Steel is made.
3. A kind of 3. circular section reducing low-yield rod iron dissipative cell according to claim 1, it is characterised in that：Described Minor diameter power consumption section（1）Diameter be less than major diameter power consumption section（2）Diameter, and changeover portion（3）Small end face diameter with it is small straight Consume energy section in footpath（1）Diameter it is equal, changeover portion（3）Large end face diameter and major diameter power consumption section（2）Diameter it is equal.