U.S. patent application number 14/300518 was filed with the patent office on 2015-06-11 for energy-dissipating junction assembly and shockproof structure using the same.
The applicant listed for this patent is CHINA STEEL CORPORATION. Invention is credited to SHENG-JIN CHEN, CHING-YUAN HUANG.
Application Number | 20150159369 14/300518 |
Document ID | / |
Family ID | 53270590 |
Filed Date | 2015-06-11 |
United States Patent
Application |
20150159369 |
Kind Code |
A1 |
CHEN; SHENG-JIN ; et
al. |
June 11, 2015 |
ENERGY-DISSIPATING JUNCTION ASSEMBLY AND SHOCKPROOF STRUCTURE USING
THE SAME
Abstract
An energy-dissipating junction assembly includes a junction
plate and a plurality of bolts. The junction plate includes two
junction sections and an energy-dissipating section. The two
junction sections are used to connect a structure body. The
energy-dissipating section is located between the two junction
sections and has a plurality of slots, wherein each slot has a
length. The bolts are separately disposed at each slot of the
energy-dissipating section, so as to connect the energy-dissipating
section to the structure body. Each bolt has a head portion, and an
external diameter of each head portion is smaller than the length
of each slot. The disclosure can convert external force (such as
acting force of earthquakes or typhoons) acting on the structure
body into uniform tensile force and pressure, so as to avoid
generation of stress concentration to damage the structure
body.
Inventors: |
CHEN; SHENG-JIN; (KAOHSIUNG,
TW) ; HUANG; CHING-YUAN; (KAOHSIUNG, TW) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
CHINA STEEL CORPORATION |
Kaohsiung |
|
TW |
|
|
Family ID: |
53270590 |
Appl. No.: |
14/300518 |
Filed: |
June 10, 2014 |
Current U.S.
Class: |
52/167.8 |
Current CPC
Class: |
E04B 1/2403 20130101;
E04H 9/02 20130101; E04B 2001/2442 20130101; E01D 19/00 20130101;
E04B 2001/2415 20130101; E04B 2001/2439 20130101 |
International
Class: |
E04B 1/98 20060101
E04B001/98 |
Foreign Application Data
Date |
Code |
Application Number |
Dec 10, 2013 |
TW |
102145432 |
Claims
1. An energy-dissipating junction assembly, comprising: a junction
plate including two junction sections and an energy-dissipating
section, wherein the two junction sections are used to connect a
structure body; the energy-dissipating section is located between
the two junction sections and has a plurality of slots; and each
slot has a length; and a plurality of bolts separately disposed at
each slot of the energy-dissipating section for connecting the
energy-dissipating section to the structure body, wherein each bolt
has a head portion, and an external diameter of each head portion
is smaller than the length of each slot.
2. The energy-dissipating junction assembly of claim 1, wherein the
structure body is selected from one of the following: a steel beam,
a steel column, a building, a bridge, a bridge column, and a
combination of at least two of the foregoing.
3. The energy-dissipating junction assembly of claim 1, wherein the
two junction sections of the junction plate are connected to the
structure body in a welding manner.
4. The energy-dissipating junction assembly of claim 1, further
comprising a plurality of junction bolts, wherein each junction
section has a plurality of circular junction holes, and the
junction bolts are separately disposed at each circular junction
hole for connecting each junction section to the structure
body.
5. The energy-dissipating junction assembly of claim 4, wherein the
number of the junction bolts on each junction section is the
same.
6. The energy-dissipating junction assembly of claim 4, wherein the
length of each slot is greater than a diameter of each circular
junction hole.
7. The energy-dissipating junction assembly of claim 4, wherein
each slot has a width, and the width of each slot is greater than
or equal to a diameter of each circular junction hole.
8. The energy-dissipating junction assembly of claim 4, wherein a
spacing between the slots is greater than a spacing between the
circular junction holes.
9. The energy-dissipating junction assembly of claim 4, wherein the
size of each slot is greater than that of each circular junction
hole.
10. The energy-dissipating junction assembly of claim 1, wherein
the size of each slot is the same.
11. The energy-dissipating junction assembly of claim 1, wherein
the slots are arranged regularly.
12. The energy-dissipating junction assembly of claim 1, wherein
the length of each slot is greater than or equal to twice of the
external diameter of each head portion.
13. The energy-dissipating junction assembly of claim 12, wherein
each slot is disposed with a plurality of bolts.
14. The energy-dissipating junction assembly of claim 1, wherein
the area of the energy-dissipating section is greater than that of
each junction section.
15. A shockproof structure, comprising: a structure body having a
selected energy-dissipating area; and an energy-dissipating
junction assembly, comprising: a junction plate including two
junction sections and an energy-dissipating section, wherein the
two junction sections are connected to the selected
energy-dissipating area of the structure body; the
energy-dissipating section is located between the two junction
sections and has a plurality of slots; and each slot has a length;
and a plurality of bolts separately disposed at each slot of the
energy-dissipating section for connecting the energy-dissipating
section to the selected energy-dissipating area, wherein each bolt
has a head portion, and an external diameter of each head portion
is smaller than the length of each slot.
16. The shockproof structure of claim 15, wherein the structure
body is selected from one of the following: a steel beam, a steel
column, a building, a bridge, a bridge column, and a combination of
at least two of the foregoing.
17. The shockproof structure of claim 16, wherein the selected
energy-dissipating area is a beam-column joint area.
18. The shockproof structure of claim 15, further comprising a
plurality of junction bolts, wherein each junction section has a
plurality of circular junction holes, and the junction bolts are
separately disposed at each circular junction hole for connecting
each junction section to the selected energy-dissipating area.
19. The shockproof structure of claim 18, wherein the length of
each slot is greater than a diameter of each circular junction
hole.
20. The shockproof structure of claim 18, wherein a spacing between
the slots is greater than a spacing between the circular junction
holes.
21. The shockproof structure of claim 15, wherein the length of
each slot is greater than or equal to twice of the external
diameter of each head portion.
22. The shockproof structure of claim 21, wherein each slot is
disposed with a plurality of bolts.
23. The shockproof structure of claim 15, wherein the area of the
energy-dissipating section is greater than that of each junction
section.
Description
FIELD
[0001] The disclosure relates to an energy-dissipating shockproof
structure, more particular to an energy-dissipating junction
assembly and a shockproof structure using the same.
BACKGROUND
[0002] It is known that constructional steel structures or steel
bridge columns (beams) often collapsed or are damaged because of
being hit by earthquakes or typhoons, leading to difficult
restoration.
[0003] FIG. 1 illustrates a schematic view for a known steel bridge
column (beam) structure subjected to horizontal earthquake force.
FIG. 2 illustrates a bending moment diagram for a known steel
bridge column (beam) structure subjected to horizontal earthquake
force. With reference to FIG. 1 and FIG. 2, when a known is steel
bridge column (beam) structure 60 is subjected to the horizontal
earthquake force, a great acting bending moment may be generated at
a bottom of a steel bridge column 61, leading to generation of
flexural deformation and local buckling of the steel bridge column
61, so that the steel bridge column 61 breaks, and an anchorage
part of the steel bridge column 61 is deeply buried underground;
and therefore, it is also difficult to detect damage conditions of
the steel bridge column 61 after earthquakes. Furthermore, the
steel bridge column 61 only can generate a mechanical conventional
plastic hinge in an ideal state, and therefore, its shockproof
capability is also limited.
[0004] In addition, a reason for damages of the known
constructional steel structure often lies in that acting force of
earthquakes concentrates at a beam-column joint area, leading to
breakage or collapse of the structure.
[0005] Damages of the foregoing structure may cause severe
disasters and substantial property losses. Therefore, it is
necessary to provide an energy-dissipating junction assembly and a
shockproof structure to solve the foregoing problems.
SUMMARY OF THE INVENTION
[0006] In accordance with one aspect of the present disclosure, an
energy-dissipating junction assembly includes a junction plate and
a plurality of bolts. The junction plate includes two junction
sections and an energy-dissipating section. The two junction
sections are used to connect a structure body. The
energy-dissipating section is located between the two junction
sections and has a plurality of slots. Each slot has a length. The
bolts are separately disposed at each slot of the
energy-dissipating section, so as to connect the energy-dissipating
section to the structure body. Each bolt has a head portion, and an
external diameter of each head portion is smaller than the length
of each slot.
[0007] In accordance with another aspect of the present disclosure,
a shockproof structure includes a structure body and an
energy-dissipating junction assembly. The structure body has a
selected energy-dissipating area. The energy-dissipating junction
assembly includes a junction plate and a plurality of bolts. The
junction plate includes two junction sections and an
energy-dissipating section. The two junction sections are connected
to the selected energy-dissipating area of the structure body. The
energy-dissipating section is located between the two junction
sections and has a plurality of slots. Each slot has a length. The
bolts are separately disposed at each slot of the
energy-dissipating section, so as to connect the energy-dissipating
section to the selected energy-dissipating area. Each bolt has a
head portion, and an external diameter of each head portion is
smaller than the length of each slot.
[0008] The energy-dissipating junction assembly of the present
disclosure can convert external force (such as acting force of
earthquakes or typhoons) acting on the structure body into uniform
tensile force and pressure, so as to avoid generation of stress
concentration to damage the structure body. In addition, with a
constraint role played by the bolts on the energy-dissipating
section of the junction plate, out-of-plane deformation of the
structure body can be inhibited.
BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Aspects of the present disclosure are understood from the
following detailed description when read with the accompanying
figures. It is emphasized that, in accordance with the standard
practice in the industry, various features are not drawn to scale.
In fact, the dimensions of the various features may be arbitrarily
increased or reduced for clarity of discussion.
[0010] FIG. 1 illustrates a schematic view for a known steel bridge
column (beam) structure subjected to horizontal earthquake
force.
[0011] FIG. 2 illustrates a bending moment diagram for a known
steel bridge column (beam) structure subjected to horizontal
earthquake force.
[0012] FIG. 3 illustrates a perspective view of an
energy-dissipating junction assembly in accordance with a first
embodiment of the present disclosure.
[0013] FIG. 4 illustrates a top view of a junction plate in
accordance with a first embodiment of the present disclosure.
[0014] FIG. 5 illustrates a schematic view of an energy-dissipating
junction assembly in connection to a structure body in accordance
with a first embodiment of the present disclosure.
[0015] FIG. 6 illustrates a perspective view of an
energy-dissipating junction assembly in accordance with a second
embodiment of the present disclosure.
[0016] FIG. 7 illustrates a perspective view of an
energy-dissipating junction assembly in accordance with a third
embodiment of the present disclosure.
[0017] FIG. 8 illustrates a perspective view of an
energy-dissipating junction assembly in accordance with a fourth
embodiment of the present disclosure.
[0018] FIG. 9 illustrates a schematic view of a shockproof
structure in accordance with a first embodiment of the present
disclosure.
[0019] FIG. 10 shows a bending moment strength distribution of a
shockproof structure in accordance with a first embodiment of the
present disclosure.
[0020] FIG. 11 illustrates a schematic view of a shockproof
structure in accordance with a second embodiment of the present
disclosure.
[0021] FIG. 12 illustrates a schematic view of a shockproof
structure in accordance with a third embodiment of the present
disclosure.
DETAILED DESCRIPTION OF THE INVENTION
[0022] It is to be understood that the following disclosure
provides many different embodiments or examples, for implementing
different features of various embodiments. Specific examples of
components and arrangements are described below to simplify the
present disclosure. The present disclosure may, however, be
embodied in many different forms and should not be construed as
being limited to the embodiments set forth herein; rather, these
embodiments are provided so that this description will be thorough
and complete, and will fully convey the present disclosure to those
of ordinary skill in the art. It will be apparent, however, that
one or more embodiments may be practiced without these specific
details.
[0023] In addition, the present disclosure may repeat reference
numerals and/or letters in the various examples. This repetition is
for the purpose of simplicity and clarity and does not in itself
dictate a relationship between the various embodiments and/or
configurations discussed.
[0024] It will be understood that singular forms "a", "an" and
"the" are intended to include the plural forms as well, unless the
context clearly indicates otherwise.
[0025] Unless otherwise defined, all terms (including technical and
scientific terms) used herein have the same meaning as commonly
understood by one of ordinary skill in the art to which this
invention belongs. It will be further understood that terms; such
as those defined in commonly used dictionaries, should be
interpreted as having a meaning that is consistent with their
meaning in the context of the relevant art and the present
disclosure, and will not be interpreted in an idealized or overly
formal sense unless expressly so defined herein.
[0026] FIG. 3 illustrates a perspective view of an
energy-dissipating junction assembly in accordance with a first
embodiment of the present disclosure. FIG. 4 illustrates a top view
of a junction plate in accordance with a first embodiment of the
present disclosure. FIG. 5 illustrates a schematic view of an
energy-dissipating junction assembly in connection to a structure
body in accordance with a first embodiment of the present
disclosure.
[0027] Referring to FIGS. 3, 4, and 5, an energy-dissipating
junction assembly 10 in accordance with the first embodiment of the
present disclosure includes a junction plate 12, a plurality of
junction bolts 14, and a plurality of bolts 16.
[0028] The junction plate 12 includes two junction sections 122 and
an energy-dissipating section 124. The two junction sections 122
are used to connect a structure body 50, and the structure body 50
is selected from one of the following: a steel beam, a steel
column, a building, a bridge, a bridge column, and a combination of
at least two of the foregoing. In this embodiment, the junction
plate 12 is a steel plate, and each junction section 122 has a
plurality of circular junction holes 122H.
[0029] The energy-dissipating section 124 is located between the
two junction sections 122. The area of the energy-dissipating
section 124 is greater than that of each junction section 122, and
the energy-dissipating section 124 has a plurality of slots 124H.
In some embodiments, the area of the energy-dissipating section 124
may be smaller than that of each junction section 122.
[0030] In this embodiment, the slots 124H are arranged regularly,
and the size of each slot 124H is the same. Furthermore, the size
of each slot 124H is greater than that of each circular junction
hole 122H; and preferably, a spacing G2 between the slots 124H is
greater than a spacing G1 between the circular junction holes
122H.
[0031] In this embodiment, each slot 124H is a long slot, and
therefore, each slot 124H has a length L and a width W. Preferably,
the length L of each slot 124H is greater than a diameter D of each
circular junction hole 122H, and the width W of each slot 124H is
greater than or equal to the diameter D of each circular junction
hole 122H.
[0032] The junction bolts 14 are separately disposed at each
circular junction hole 122H of each junction section 122, so as to
connect each junction section 122 to the structure body 50. In this
embodiment, the number of the junction bolts 14 on each junction
section 122 is the same.
[0033] The bolts 16 are separately disposed at each slot 124H of
the energy-dissipating section 124, so as to connect the
energy-dissipating section 124 to the structure body 50. In this
embodiment, each bolt 16 has a head portion 162; and an external
diameter d of each head portion 162 is smaller than the length L of
each slot 124H, but is greater than the width W of each slot 124H.
With a constraint role played by the bolts 16 on the
energy-dissipating section 124 of the junction plate 12,
out-of-plane deformation of the structure body 50 can be inhibited.
In addition, the head portion 162 of each bolt 16 can be a nut.
[0034] The energy-dissipating junction assembly 10 of the present
disclosure can convert external force (such as acting force of
earthquakes or typhoons) acting on the structure body 50 into
uniform tensile force and pressure, so as to avoid generation of
stress concentration to damage the structure body 50.
[0035] FIG. 6 illustrates a perspective view of an
energy-dissipating junction assembly in accordance with a second
embodiment of the present disclosure.
[0036] Referring to FIGS. 3 and 6, structural features of an
energy-dissipating junction assembly in accordance with the second
embodiment of the present disclosure are basically the same as
those of the first embodiment, and a difference therebetween only
lies in that the length L of each slot 124H is greater than or
equal to twice of the external diameter 2d of each head portion 162
of each bolt 16, so that each slot 124H can be disposed with a
plurality of bolts 16.
[0037] FIG. 7 illustrates a perspective view of an
energy-dissipating junction assembly in accordance with a third
embodiment of the present disclosure.
[0038] Referring to FIGS. 3, 4, and 7, structural features of an
energy-dissipating junction assembly in accordance with the third
embodiment of the present disclosure are basically the same as
those of the first embodiment, and a difference therebetween only
lies in that the two junction sections 122 omit to form the
circular junction holes 122H and omit to use the junction bolts 14,
and the two junction sections 122 are connected to the structure
body 50 in a welding manner
[0039] FIG. 8 illustrates a perspective view of an
energy-dissipating junction assembly in accordance with a fourth
embodiment of the present disclosure.
[0040] Referring to FIGS. 7 and 8, structural features of an
energy-dissipating junction assembly in accordance with the fourth
embodiment of the present disclosure are basically the same as
those of the third embodiment, and a difference therebetween only
lies in that the length L of each slot 124H is greater than or
equal to twice of the external diameter 2d of each head portion 162
of each bolt 16, so that each slot 124H can be disposed with a
plurality of bolts 16.
[0041] FIG. 9 illustrates a schematic view of a shockproof
structure in accordance with a first embodiment of the present
disclosure.
[0042] As shown in FIG. 9, a shockproof structure 20 in accordance
with the first embodiment of the present disclosure includes a
structure body 22 and an energy-dissipating junction assembly
24.
[0043] In this embodiment, the structure body 22 is a bridge
column, and the structure body 22 has a selected energy-dissipating
area 22A. The size of the selected energy-dissipating area 22A is
determined according to a shockproof demand, and the strength of
the selected energy-dissipating area 22A is designed to be a little
lower than the acting force generated by earthquakes.
[0044] The energy-dissipating junction assembly 24 includes a
junction plate 25, a plurality of junction bolts 26, and a
plurality of bolts 27.
[0045] The junction plate 25 includes two junction sections 252 and
an energy-dissipating section 254. The two junction sections 252
are connected to the selected energy-dissipating area 22A of the
structure body 22. In this embodiment, the area of each junction
section 252 is the same, and each junction section 252 has a
plurality of circular junction holes 252H; preferably, the number
of the circular junction holes 252H of each junction section 252 is
the same, and a spacing G1 between the circular junction holes 252H
is also the same. The energy-dissipating section 254 is located
between the two junction sections 252. The area of the
energy-dissipating section 254 is greater than that of each
junction section 252, and the energy-dissipating section 254 has a
plurality of slots 254H.
[0046] In this embodiment, the slots 254H are arranged regularly,
and the size of each slot 254H is the same. In addition, the size
of each slot 254H is greater than that of each circular junction
hole 252H; and preferably, a spacing G2 between the slots 254H is
greater than a spacing G1 between the circular junction holes 252H.
Furthermore, in this embodiment, each slot 254H is a long slot, and
therefore, each slot 124H has a length L and a width W. Preferably,
the length L of each slot 254H is greater than a diameter D of each
circular junction holes 252H, and the width W of each slot 254H is
greater than or equal to the diameter D of each circular junction
hole 252H.
[0047] The junction bolts 26 are separately disposed at each
circular junction hole 252H of each junction section 252, so as to
connect each junction section 252 to the selected
energy-dissipating area 22A. In some embodiments, each junction
section 252 may be connected to the selected energy-dissipating
area 22A in a welding manner.
[0048] The bolts 27 are separately disposed at each slot 254H of
the energy-dissipating section 254, so as to connect the
energy-dissipating section 254 to the selected energy-dissipating
area 22A. In this embodiment, each bolt 27 has a head portion 272;
and an external diameter d of each head portion 272 is smaller than
the length L of each slot 254H. With a constraint role played by
the bolt 27 on the energy-dissipating section 254 of the junction
plate 25, out-of-plane deformation of the selected
energy-dissipating area 22A can be inhibited.
[0049] FIG. 10 shows a bending moment strength distribution of a
shockproof structure in accordance with a first embodiment of the
present disclosure.
[0050] It is proved by a result in FIG. 10 that the bending moment
caused by horizontal earthquake force on the shockproof structure
20 can be effectively and uniformly transmitted by the junction
plate 25, and most of earthquake energy is dissipated by the
energy-dissipating section 254 of the junction plate 25.
[0051] FIG. 11 illustrates a schematic view of a shockproof
structure in accordance with a second embodiment of the present
disclosure.
[0052] As shown in FIG. 11, structural features of a shockproof
structure in accordance with the second embodiment of the present
disclosure are basically the same as those of the first embodiment,
and a difference therebetween only lies in that the structure body
22 is a combination of a steel beam 22S and a box-type steel column
22B. The selected energy-dissipating area 22A is a beam-column
joint area, and the energy-dissipating junction assembly 24 is
disposed at the beam-column joint area.
[0053] FIG. 12 illustrates a schematic view of a shockproof
structure in accordance with a third embodiment of the present
disclosure.
[0054] As shown in FIG. 12, structural features of a shockproof
structure in accordance with the third embodiment of the present
disclosure are basically the same as those of the second
embodiment, and a difference therebetween only lies in that the
structure body 22 is a combination of the steel beam 22S and an
H-type steel column 22H.
[0055] Moreover, the scope of the present application is not
intended to be limited to the particular embodiments of the
process, machine, manufacture, and composition of matter, means,
methods and steps described in the specification. As those skilled
in the art will readily appreciate form the present disclosure,
processes, machines, manufacture, compositions of matter, means,
methods, or steps, presently existing or later to be developed,
that perform substantially the same function or achieve
substantially the same result as the corresponding embodiments
described herein may be utilized according to the present
disclosure.
[0056] Accordingly, the appended claims are intended to include
within their scope such processes, machines, manufacture, and
compositions of matter, means, methods or steps. In addition, each
claim constitutes a separate embodiment, and the combination of
various claims and embodiments are within the scope of the
invention.
* * * * *