TWI449832B - Metal gusset plate for energy dissipating mechanism - Google Patents

Description

Energy dissipating metal joint plate energy dissipation mechanism

This invention relates to a structural energy dissipation mechanism and, more particularly, to an energy dissipation mechanism having a deformable metal joint plate.

In general, the diagonal absorbing and damping energy dissipating mechanism of the building is mostly made of the anti-frustration system of the slanting struts, so that the slanting bracing does not cause frustration when pressed, and when the horizontal component of the earthquake is affected, the struts are further supported. The tensile and compressive forces are the same to produce a full hysteresis loop to dissipate the seismic energy.

However, the design of the joint plates at the ends of the traditional diagonal braces is not a tough design. If the strength of the brace itself is too large when the force is damaged, most of the joint plates will be stressed and frustrated, or the block shears of the joint plates will be caused. Force tearing, so the common seismic design of buildings, the mechanism used by general tough concentric braces or diagonal bracing metal dissipators must be in the form of "weak braces vs strong joint plates".

On the other hand, the energy-dissipating metal joint plate adopts the form of "strong slanting vs weak joint plate", and the pressure frustum strength design of the central struts must be higher than the strength of the joint plates at both ends, so that the energy dissipation mechanism is controlled to occur. At the joint plates at both ends of the central bracing. However, since both the tensile and compressive modes of the joint plate are unpredictable brittle failure, it is necessary to ensure that the strength of the joint plate can be accurately predicted if the design logic of the "strong bracing vs weak joint plate" is used. It must have excellent toughness behavior to avoid the displacement, deflection and even damage of the entire main structure of the diagonal bracing caused by instantaneous breakage.

It can be seen from the foregoing that the current stress patterns are tensile and compressive stresses, and the plate body structure is relatively prone to the disadvantages of frustration and stress concentration damage due to the increase of tensile and compressive stress. Therefore, the mechanism of the conventional energy dissipative type bracing joint needs to be improved.

In view of this, the present invention mainly relates to the force transmission mechanism of the metal joint plate and the diagonal support member, which is changed from the tensile force to the shear force, and the shear deformation of the metal plate is more tough, thereby improving the stress concentration problem. The low shear strength of steel has the characteristics of increasing the thickness of the diagonal joint plate under the same design strength, thereby reducing the aspect ratio of the joint plate and improving the problem of frustration.

A main object of the present invention is to provide a metal joint plate disposed at a beam-column joint of a structure and coupled to a diagonal strut, the strength of the metal joint plate being less than the strength of the brace to The strain energy of the deformation of the metal joint plate itself dissipates the vibration energy generated by the interlayer displacement caused by vibration (e.g., earthquake). Accordingly, the metal joint plate of the present invention comprises a body and at least one groove-like opening. The body forms a coupling longitudinal axis in a direction toward the beam-column joint, wherein the bracket is coupled to the body substantially parallel to the coupling longitudinal axis. A slotted opening is threaded through the body and substantially perpendicular to the longitudinal axis of the coupling.

According to an embodiment of the invention, the manner in which the metal joint plate is coupled to the diagonal support can be through any means such as a clamp connection, a snap connection, a bolt lock, and welding.

According to an embodiment of the present invention, the metal joint plate further includes a first groove-shaped opening penetrating the body adjacent to the beam-column joint and substantially perpendicular to the coupling longitudinal axis; The two slotted opening is disposed on the body away from the beam-column joint with respect to the first slotted opening and is substantially perpendicular to the coupling longitudinal axis. Moreover, the bracing is coupled to the body between the first slot-shaped opening and the second slot-shaped opening. Moreover, the manner in which the diagonal support is coupled to the body can be through any one of a clamping connection, a buckle connection, a bolt locking, and welding.

One of the primary objects of the present invention is to provide an energy dissipating mechanism disposed in a structure comprising two metal engaging plates and a bracing, wherein the bracing is substantially parallel to the coupling of the metal engaging plates. The shaft is coupled to the metal joint plates. The strength of the metal joint plates is less than the strength of the brace, so as to absorb the internal energy of the interlayer displacement of the structure transmitted by the brace by the deformation of the metal joint plates themselves, thereby dissipating the structure The vibration (eg, earthquake) energy.

Another main object of the present invention is to provide a metal joint plate disposed at a beam-column joint of a structure and coupled to a diagonal strut, the strength of the metal joint plate being less than the strength of the brace, by The shear strain of the metal joint plate dissipates the internal energy generated by the interlayer displacement caused by vibration (eg, earthquake). Accordingly, the metal joint plate of the present invention comprises a body, a shear strain zone, and a shear strain member. The body forms a coupling longitudinal axis in a direction toward the beam-column joint. The shear strain zone is located at a portion of the body about the coupling longitudinal axis to couple the bracing, wherein the bracing is coupled to the shear strain zone substantially parallel to the coupling longitudinal axis. The shear strain member is deformed by the shear strain zone to absorb the internal energy of the interlayer displacement of the structure transmitted by the bracing, thereby dissipating the vibration (e.g., seismic) energy of the structure.

According to an embodiment of the present invention, the shear strain zone is defined between a first slotted opening and a second slotted opening formed in the body, wherein the first slotted opening Passing substantially perpendicular to the coupling longitudinal axis to the body remote from the beam-column joint, and the second slotted opening is substantially perpendicular to the coupling longitudinal axis and opposite to the first groove The opening is bored on the body proximate the beam-column joint.

According to an embodiment of the invention, the shear strain zone of the metal joint plate is coupled to the diagonal strut, and the brace is substantially parallel to the coupling longitudinal axis.

According to an embodiment of the invention, the shear strain zone of the metal joint plate is coupled to the diagonal bracing by any means such as a clamp connection, a buckle connection, a bolt lock, and welding.

Another secondary object of the present invention is to provide an energy dissipating mechanism comprising two metal engaging plates and a bracing, wherein the bracing is coupled to the coupling longitudinal axis of the metal engaging plates Some metal joint plates. The strength of the metal joint plates is less than the strength of the diagonal braces, so as to absorb the internal energy generated by the interlayer displacement of the structures by the shear deformation of the shear strain regions of the metal joint plates, thereby dissipating the structures. Vibration (eg, earthquake) energy.

Thereby, the strain energy of the shear deformation of the metal joint plate itself of the present invention can be achieved to dissipate the vibration (eg, earthquake) energy of the structure, and the energy dissipating mechanism of the metal joint plate of the present invention is used, at least Has the following advantages:

(1) The structural strength design and construction method are the same as the traditional concentric oblique braces, and the engineers are very familiar;

(2) The special design of the joint plate makes it easy to calculate the strength and is more convenient in engineering design;

(3) The joint plate is exposed, and it is easy to observe if the earthquake is damaged by force.

(4) The toughness is strong when the strong earthquake is destroyed, and the plastic deformation is concentrated on the joint plate, and the other main members are protected to keep the structure stable after the earthquake;

(5) The joint plate itself is the component of the support structure, and it is used as the energy dissipating part without additional material cost;

(6) The coupling manner of the joint plate and the diagonal support member is versatile, the joint plate is easy to replace, and the manufacturing cost is low.

The energy dissipating metal joint plate of the present invention is disposed at a beam-column joint of a structure and coupled to a diagonal strut, the strength of the metal joint plate is less than the strength of the brace, and thus, the metal joint plate is utilized. The strain energy that is itself deformed by the shear force dissipates the vibration energy generated by the interlayer displacement caused by vibration (eg, earthquake). Hereinafter, the energy dissipating metal joint plate of the present invention will be described in detail with reference to the drawings.

First, referring to Fig. 1, a schematic view of an energy dissipating mechanism having an energy dissipating metal joint plate of the present invention. The energy dissipating mechanism 10 of the present invention is disposed between the beam 20 of the structural unit and the column 30, and includes two metal joint plates 100 and a bracing 300. The metal joint plate 100 is provided at the beam-column joint 40, and the beam 20 and the column 30 are respectively joined by bolting or welding (not shown). The metal joint plate 100 forms a coupling longitudinal axis 110 in a direction toward the beam-column joint 40, and further has at least one groove-shaped opening 120 extending through the metal joint plate 100 and substantially perpendicular to the coupled longitudinal axis. 110. Preferably, but not limited to, the braces 300 are coupled to the metal joint plate 100 concentrically, that is, the braces 300 are coupled to the metal joint plate 100 in a direction substantially parallel to the coupling longitudinal axis 110. Wherein, the strength of the metal joint plate 100 is smaller than the strength of the diagonal bracing 300, so that the structure of the metal joint plate 100 itself absorbed by the brace 300 is absorbed by the strain energy of the shear deformation. The internal energy generated by the displacement between the layers, which in turn dissipates the vibration (eg, earthquake) energy of the structure.

2 is a schematic view of another embodiment of the energy dissipating metal joint plate of the present invention, comprising a metal joint plate body 200, a first grooved opening 220 and a second grooved opening. 230. The metal joint plate body 200 is disposed at the beam-column joint 40, and respectively joins the beam 20 and the column 30 by bolting or welding or the like (not shown). The metal joint plate body 200 forms a coupling longitudinal axis 210 in a direction toward the beam-column joint 40 , wherein the diagonal braces 300 are coupled to the metal joint plate body 200 substantially parallel to the coupling longitudinal axis 210 . The first slotted opening 220 and the second slotted opening 230 are respectively disposed on the metal joint plate body 200 and substantially perpendicular to the coupling longitudinal axis 210. In addition, the bracing 300 is preferably locked to the metal joint plate body 200 between the first slot-shaped opening 220 and the second slot-shaped opening 230 by a bolt 400. However, the diagonal bracket 300 is coupled. The manner of connection to the metal joint plate body 200 is not limited to bolt locking, and those skilled in the art can easily think of coupling in any manner such as by a clamp connection, a buckle connection, or a welding.

Referring to Fig. 3, it is a schematic diagram of the shear strain mechanism of the energy dissipating metal joint plate of Fig. 2. As in the configuration of the metal joint plate 200 of the above embodiment, the first groove-shaped opening 220 and the second groove-shaped opening 230 are substantially perpendicular to the coupling longitudinal axis 210 on the metal joint plate body 200, and thus the metal is A shear strain zone 250 is defined on the joint plate body 200, and the diagonal bracing 300 is coupled to the shear strain zone 250.

The shear strain mechanism is provided by the above configuration, so that the axial tensile force F transmitted through the bracing 300 will cause the coupling between the first slotted opening 220 and the second slotted opening 230. The region of the metal joint plate 200 of 300 generates a shear force τ, which shears the strain energy through the shear strain region 250, and absorbs the axial tensile force caused by the interlayer displacement of the structure transmitted by the brace 300.

Thereby, the energy dissipating mechanism of the present invention having the deformable metal joint plate configuration utilizes the strain energy of the metal joint plate itself due to shear deformation to dissipate the interlayer caused by vibration (eg, earthquake). The shock energy generated by the displacement achieves the purpose of damping and shock resistance of the energy dissipating metal joint plate of the present invention.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and the present invention can be modified and modified without departing from the spirit and scope of the present invention. The scope is subject to the definition of the scope of the patent application attached.

10. . . Energy dissipating mechanism

20. . . Beam

30. . . column

40. . . Beam-column joint

100, 200. . . Metal joint plate / body

110, 210. . . Coupling vertical axis

120. . . Grooved opening

220. . . First slotted opening

230. . . Second slotted opening

250. . . Shear strain zone

300. . . Diagonal support

400. . . bolt

The above and other objects, features, advantages and embodiments of the present invention will become more apparent and understood.

Figure 1 is a schematic view of an energy dissipation mechanism having an energy dissipating metal joint plate of the present invention;

Figure 2 is a schematic view showing another embodiment of the energy dissipating metal joint plate of the present invention;

Fig. 3 is a schematic view showing the shear strain mechanism of the energy dissipating metal joint plate of the present invention.

20. . . Beam

30. . . column

40. . . Beam-column joint

200. . . Metal joint plate body

210. . . Coupling vertical axis

220. . . First slotted opening

230. . . Second slotted opening

300. . . Diagonal support

400. . . bolt

Claims (11)

A metal joint plate disposed at a beam-column joint of a structure and coupled to a diagonal bracing, wherein the deformation of the metal joint plate absorbs internal energy generated by interlayer displacement of the structure, thereby dissipating the structure a vibration energy of the object, wherein the metal joint plate comprises: a body forming a coupling longitudinal axis in a direction toward the beam-column joint, the coupling longitudinal axis being substantially parallel to the diagonal bracing; and at least one groove An opening is formed through the body and substantially perpendicular to the longitudinal axis of the coupling. The metal joint plate of claim 1, wherein the manner in which the body is coupled to the brace is selected from the group consisting of: a clamp connection, a buckle connection, a bolt lock, and a welding. The metal joint plate of claim 1, further comprising: a first groove-shaped opening penetrating the body adjacent to the beam-column joint and substantially perpendicular to the coupling longitudinal axis; and a second The slotted opening is disposed on the body away from the beam-column joint with respect to the first slotted opening and is substantially perpendicular to the coupling longitudinal axis. The metal joint plate of claim 3, wherein the system between the first grooved opening and the second grooved opening is coupled to the struts. The metal joint plate of claim 4, wherein the manner in which the body is coupled to the brace is selected from the group consisting of: a clamp connection, a buckle connection, a bolt lock, and a welding. An energy dissipating mechanism having a metal joint plate according to any one of claims 1 to 5, disposed in a structure, the energy dissipating mechanism comprising: two metal joint plates; and a diagonal brace substantially parallel to the The metal joint plates are coupled to the metal joint plates, wherein the metal joint plates have a strength less than the strength of the brace to absorb the deformation of the metal joint plates. The internal energy generated by the interlayer displacement of the structure transmitted thereby dissipates the vibration energy of the structure. A metal joint plate disposed at a beam-column joint of a structure and coupled to a diagonal strut, the shear strain of the metal joint plate is used to absorb the internal energy generated by the interlayer displacement of the structure, thereby dissipating the The vibration energy of the structure, wherein the metal joint plate comprises: a body, the body forms a coupling longitudinal axis in a direction toward the beam-column joint; and a shear strain zone is formed by at least one groove on the body Defining the opening of the opening, the shear strain zone is a part of the body surrounding the longitudinal axis for coupling the bracing; and the shear strain member is opened by the at least one groove The hole is pierced and the shear force of the shear strain zone is utilized to absorb the internal energy of the interlayer displacement of the structure transmitted by the bracing. The metal joint plate of claim 7, wherein the at least one groove-shaped opening further comprises: a first groove-shaped opening, which is disposed substantially perpendicular to the coupling longitudinal axis and adjacent to the beam-column joint And a second slot-shaped opening, which is substantially perpendicular to the coupling longitudinal axis and is disposed on the body away from the beam-column joint with respect to the first slot-shaped opening. The metal joint plate of claim 7, wherein the shear strain zone is coupled to the brace to be substantially parallel to the longitudinal axis. The metal joint plate of claim 7, wherein the manner in which the shear strain zone is coupled to the diagonal brace is selected from the group consisting of: a clamp connection, a buckle connection, a bolt lock, and a welding. An energy dissipating mechanism having a metal joint plate according to any one of claims 7 to 10, disposed in a structure, the energy dissipating mechanism comprising: two metal joint plates; and a diagonal brace substantially parallel The metal joint plates are coupled to the metal joint plates, wherein the metal joint plates have a strength less than the strength of the diagonal braces to utilize the shear strain zones of the metal joint plates. Shear deformation to absorb the internal energy generated by the interlayer displacement of the structure, thereby dissipating the vibration energy of the structure.