U.S. patent application number 12/122951 was filed with the patent office on 2009-11-19 for shock-resisting steel concrete structure.
Invention is credited to Chin-Lu KUAN, Pei-Lin Kuan.
Application Number | 20090282753 12/122951 |
Document ID | / |
Family ID | 41314797 |
Filed Date | 2009-11-19 |
United States Patent
Application |
20090282753 |
Kind Code |
A1 |
KUAN; Chin-Lu ; et
al. |
November 19, 2009 |
Shock-Resisting Steel Concrete Structure
Abstract
The present invention discloses a shock-resisting steel concrete
structure including an external steel-plate frame covered onto a
corresponding steel body, and a concrete filled up into the
external steel-plate frame for engaging the steel bodies, steel
wires and external steel-plates. The steel wires are used for
connecting the steel bodies and woven into a mesh shape. Connecting
wires are provided for connecting and engaging the external
steel-plate frame and the steel bodies when the concrete is filled.
A structure with a tight connection of the steel bodies, external
steel-plate frames and concrete provides a better shock resistance,
and effectively prevents accidents caused by concrete spalling.
Inventors: |
KUAN; Chin-Lu; (Jhongli
City, TW) ; Kuan; Pei-Lin; (Jhongli City,
TW) |
Correspondence
Address: |
TROXELL LAW OFFICE PLLC
SUITE 1404, 5205 LEESBURG PIKE
FALLS CHURCH
VA
22041
US
|
Family ID: |
41314797 |
Appl. No.: |
12/122951 |
Filed: |
May 19, 2008 |
Current U.S.
Class: |
52/167.1 |
Current CPC
Class: |
E04C 5/0609 20130101;
E04B 1/30 20130101; E04C 5/0613 20130101; E04C 5/0636 20130101 |
Class at
Publication: |
52/167.1 |
International
Class: |
E04B 1/98 20060101
E04B001/98 |
Claims
1. A shock-resisting steel concrete structure, comprising: a steel
body, formed by connecting a plurality of steel wires into a mesh
shape; an external steel-plate frame, covered onto an external
layer of the steel body, and having a gap from the steel body; and
a concrete, filled up in the external steel-plate frame and engaged
with the steel body, the steel wires and the external steel-plate
frame.
2. The shock-resisting steel concrete structure of claim 1, wherein
the steel body is made of steel bars.
3. The shock-resisting steel concrete structure of claim 1, wherein
the steel body is made of steel braces, and each steel brace
includes two plates, and each plate includes a plurality of through
holes disposed thereon for fixing the steel wires.
4. The shock-resisting steel concrete structure of claim 3, wherein
the plate of the steel brace includes a plurality of flanges
disposed on both sides of the plate for fixing the steel wires.
5. The shock-resisting steel concrete structure of claim 4, wherein
the flanges are installed alternately in opposite directions with
each other.
6. The shock-resisting steel concrete structure of claim 4, wherein
the flanges are installed alternately in a same direction with each
other.
7. The shock-resisting steel concrete structure of claim 2, wherein
the plate of the steel brace includes a plurality of screw bolts
disposed on both sides of the plate for fixing the steel wires.
8. The shock-resisting steel concrete structure of claim 1, wherein
the external steel-plate frame further includes a sunken/protruded
portion.
9. The shock-resisting steel concrete structure of claim 1, wherein
the external steel-plate frame is formed by enclosing a plurality
of steel plates around the exterior of the steel body.
10. The shock-resisting steel concrete structure of claim 9,
further comprising a connecting wire for connecting each steel
plate with the steel body.
11. The shock-resisting steel concrete structure of claim 10,
wherein the steel plate of the external steel-plate frame includes
a hook hole for passing and connecting the connecting wire.
12. The shock-resisting steel concrete structure of claim 10,
wherein each external steel-plate frame includes a connecting plate
with a hook hole for passing and connecting the connecting wire.
Description
BACKGROUND OF THE INVENTION
[0001] (a) Field of the Invention
[0002] The present invention relates to a shock-resisting steel
concrete structure, and more particularly to a shock-resisting
steel concrete structure having a better shock resistance and
effectively preventing accidents caused by a spalling concrete at
external layers of the structure.
[0003] (b) Description of the Prior Art
[0004] Referring to FIG. 1 for a schematic view of a basic
structure of a concrete-filled column of a construction in
accordance with a prior art, a concrete body 9 is formed by
consolidating a steel bar framework 91 and a concrete 92 of a
totally different material enclosed onto the exterior of the steel
bar framework 91 by grouting to produce a heterogeneous
construction material, wherein the composition of the concrete 92
is very extensive, and basically includes mixing materials such as
cement (including Portland cement and sulfate resisting cement,
etc), sand, and coarse and fine aggregates and other materials
(such as fly ash, chelating agent and accelerating agent, if
needed).
[0005] Since concretes made of different materials provide
different functions for various specific applications, the binding
effect of the concrete 92 increases the structural firmness and the
capability of absorbing and dispersing energies of the steel bar
framework 91. After the concrete 92 at external layers is spalled,
the column core (or steel bar framework 91) still has the binding
effect. However, if the pulling stress exceeds the pulling strength
of the concrete in an earthquake, the concrete will be cracked. In
the beginning, the crack is short and small, but it will increase
and extend into the cross-section of the beams and columns. After
the concrete construction is damaged by the earthquake, the damage
will be extended to a portion or the whole of the construction.
[0006] After the concrete body is cracked, the concrete generally
starts spalling from the external layer of the steel bar framework.
If the spalling of the concrete body occurs at a high position of
the construction or a floor, people or equipments below the
concrete body may be hit directly by falling concrete lumps.
[0007] In a prior art, the steel bar framework of a construction
and the concrete at the external layer are affected by different
climates, and a void layer or a crevice may be formed easily by
thermal expansions and contractions or after a light earthquake,
such that outside air may enter into the concrete, or even go deep
into the steel bar framework to corrode or damage the steel bar
framework. In other words, a damage point is produced in the whole
construction, and a more serious disaster may occur during a bigger
earthquake.
SUMMARY OF THE INVENTION
[0008] The primary objective of the present invention is to
overcome the shortcomings of the prior art by providing a
shock-resisting steel concrete structure with a good shock
resistance for preventing concretes from spalling, and such
structure is particularly applicable for construction beams and
columns.
[0009] To achieve the foregoing objective, the present invention
provides a shock-resisting steel concrete structure, including an
external steel-plate frame covered onto the exterior of a steel
body and a concrete filled up into the external steel-plate frame
and engaged with a steel body, a steel wire and an external
steel-plate frame, and the external steel-plate frame is comprised
of a plurality of steel plates enclosed around the exterior of the
corresponding steel bodies respectively, and the external
steel-plate frame includes a sunken/protruded portion, and each
plate of the steel body is woven by steel wires into a mesh shape,
and a connecting wire is connected between each external
steel-plate frame and the steel body for their engagement when the
concrete is filled.
[0010] Therefore, a structure for tightly connecting the steel
body, the external steel-plate frame and the concrete provides a
better shock resistance for the shock-resisting steel concrete
structure to prevent the concrete from being damaged, the steel
body from being corroded, and also prevent accidents caused by the
spalling concrete at the external layer.
[0011] Compared with the prior art, the present invention has the
following effects:
[0012] 1. The shock resistance of the shock-resisting steel
concrete structure is improved effectively.
[0013] 2. The external steel-plate frame is combined tightly with
the steel body and the steel wires after the grouting of concrete,
in order to provide a shock-resisting structure capable of
strengthening the shock resistance of the shock-resisting steel
concrete structure in advance instead of a post-reinforced
structure. Therefore, the invention can aggressively reduce the
damages of the shock-resisting steel concrete structure caused by a
earthquake.
[0014] 3. The external steel-plate frame covered onto the exterior
of the steel body is capable of preventing cracked concrete from
falling down and effectively avoiding accidents caused by the
spalling concrete.
[0015] 4. The invention can prevent corrosions or damages to the
framework caused by the void layer or crevice produced by thermal
expansions and contractions or light earthquakes.
BRIEF DESCRIPTION OF THE DRAWINGS
[0016] FIG. 1 is a schematic view of a structure of a construction
concrete body in accordance with a prior art;
[0017] FIG. 2 is a perspective view of a structure in accordance
with a first preferred embodiment of the present invention;
[0018] FIG. 3 is a cross-sectional view of a structure in
accordance with a first preferred embodiment of the present
invention;
[0019] FIG. 4 is a cross-sectional view of a structure in
accordance with a second preferred embodiment of the present
invention;
[0020] FIG. 5 is a schematic view of a structure of a steel body in
accordance with a first preferred embodiment of the present
invention;
[0021] FIG. 6 is a schematic view of a structure of a steel body
combined with steel wires in accordance with a first preferred
embodiment of the present invention;
[0022] FIG. 7 is a schematic view of a connecting wire fixture
structure in accordance with a first preferred embodiment of the
present invention;
[0023] FIG. 8 is a schematic view of a connecting wire fixture
structure in accordance with a third preferred embodiment of the
present invention;
[0024] FIG. 9 is a schematic view of a structure of a steel body in
accordance with a fourth preferred embodiment of the present
invention;
[0025] FIG. 10 is a schematic view of a structure of a steel body
combined with steel wires in accordance with a fourth preferred
embodiment of the present invention;
[0026] FIG. 11 is a perspective view of a structure in accordance
with a fourth preferred embodiment of the present invention;
[0027] FIG. 12 is a schematic view of a structure of a steel body
combined with steel wires in accordance with a fifth preferred
embodiment of the present invention;
[0028] FIG. 13 is an exploded view of a structure in accordance
with a sixth preferred embodiment of the present invention; and
[0029] FIG. 14 is a cross-sectional view of a structure in
accordance with a sixth preferred embodiment of the present
invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0030] The characteristics of the present invention will become
apparent with the detailed description of preferred embodiments
with related drawings as follows.
[0031] The present invention provides a shock-resisting steel
concrete structure with a better shock resistance to prevent
corrosions or damages to a steel body due to damages to concrete
and effectively prevent concrete at the external layer from
spalling. The invention provides a shock-resisting steel concrete
structure applicable for construction beams and columns. Referring
to FIGS. 2 and 3 for a perspective view and a cross-sectional view
of a shock-resisting steel concrete structure applied in
construction beams and columns in accordance with a first preferred
embodiment of the present invention respectively, the whole
shock-resisting steel concrete structure comprises a steel body 1,
an external steel-plate frame 2 and a concrete 3.
[0032] Also referring to FIG. 5, the steel body 1 is a steel brace
A in this embodiment. The steel body 1 includes at least two plates
11, a plurality of flanges 12 disposed on both sides of each plate
11, and a plurality of through holes 13 disposed uniformly on the
steel body 1. Also referring to FIG. 6, each plate 11 is fixed into
the through holes 13 and woven by a steel wire 4 (preferably in a
flat iron form, but also can be in a circular iron form) into a
mesh shape to strengthen the whole steel body 1 and provide a
better engagement of the concrete 3. Further, the steel body 1 also
includes a plurality of through holes 13 for providing a better
engagement of the concrete 3.
[0033] The external steel-plate frame 2 is covered onto an external
layer of the corresponding steel body 1 and forms a gap with the
steel body 1 for filling the concrete 3, and the external
steel-plate frame 2 is made by bending a steel plate, or formed by
a plurality of corresponding steel plates 21 (and this embodiment
adopts four steel plates 21) covered onto an external layer of the
steel body 1, and each steel plate 21 has a sunken/protruded
portion 22 for providing a better engaging effect. In this
embodiment, the sunken/protruded portion 22 is in a dovetail shape
for strengthening the concrete 3 for the desired engaging effect.
Of course, the steel plates 21 can be in a linear flat shape as
shown in FIG. 4 for achieving the same covering effect.
[0034] In FIGS. 2, 3 and 7, the plate of the external steel-plate
frame 2 includes a plurality of hook holes 23, and the steel body 1
includes a plurality of through holes 13 for connecting the
connecting wire 5 to each hook hole 23 of the external steel-plate
frame and each through hole 13 of the steel body 1 to constitute a
structure of tightly connecting the steel body, the external
steel-plate frame and the concrete, so that the whole reinforced
concrete structure can have a better shock resistance.
[0035] With the foregoing structure for connecting and securing the
steel body 1, the steel wire 4, the connecting wire 5 and the
external steel-plate frame 2 with a tight engagement, the concrete
3 can be filled into external steel-plate frame 2 by grouting and
engaged with the structure to provide a reinforced concrete
structure with a better shock resistance and prevent the concrete 3
from being damaged and the steel body 1 from being corroded, and
the characteristic of covering the external steel-plate frame 2 can
effectively prevent accidents caused by the concrete 3 spalled from
the external layer of the steel concrete structure during an
earthquake.
[0036] Of course, the hook hole 23 for fixing the connecting wire 5
can be disposed directly on a plate surface of the steel plate 21
as shown in FIG.
[0037] 8 or soldered at a specific position of the steel plate 21
having the connecting plate 24 with the hook hole 23 as shown in
FIG. 7.
[0038] The steel body 1 includes two plates 11 (generally known as
"I-beam steel") as shown in FIG. 5 or four plates 11 (generally
known as "Check-shaped steel") as shown in FIGS. 9 to 11.
[0039] In FIG. 5, a plurality of flanges 12 are disposed on both
lateral sides of the plate 11 for providing a reinforced structure
and installed in opposite directions for providing a good engaging
effect. Of course, the plurality of flanges 12 as shown in FIG. 9
can be partitioned and installed in the same direction or a whole
piece is installed in the same direction to achieve the advantages
of a good reinforced structure and a good engaging effect.
[0040] From the description above, the steel wire 4 among the
plates 11 is passed through the plurality of through holes 13
disposed on the flange 12 or a plurality of screw bolts 14 disposed
on both sides of the plate 11, and the steel wire 4 is passed
through the plurality of screw bolts 14 as shown in FIG. 12 to
substitute the flanges 12 by a simpler method.
[0041] In addition to the foregoing embodiments, the steel body 1
also can be made of a steel bar B as shown in FIGS. 13 and 14
instead of a steel 10 brace A, ad the steel body 1 is woven by the
steel wire 4 into a mesh shape. Similarly, an external steel-plate
frame 2 is covered onto the exterior of the steel body 1 and a gap
is formed between the external steel-plate frame 2 and the steel
body 1. Further, a connecting wire 5 is provided for connecting the
external steel-plate frame 2 and the steel body 1, and the concrete
3 is filled up into the external steel-plate frame 2 and engaged
with the steel body 1, the steel wire 4 and the external
steel-plate frame 2 to form a structure of tightly connecting the
steel body 1, the external steel-plate frame 2 and the concrete
3.
[0042] After the concrete is grouted and consolidated, the shock
resistance of the whole shock-resisting steel concrete structure
can be enhanced. Since the external steel-plate frame comes with a
shock-resisting structure having a shock resistance for reinforcing
the shock-resisting steel concrete structure in advance instead of
providing a remedial reinforced structure, therefore the present
invention can reduce the damage to the shock-resisting steel
concrete structure during an earthquake. The external steel-plate
frame covered onto an external layer of the steel body can prevent
the cracked concrete lumps from falling and effectively prevent
accidents caused by the concrete spalled from the external layer of
the steel concrete structure. The invention also can prevent a void
layer or a crevice formed in the concrete and a corrosion of the
steel framework due to thermal expansions and contractions or a
light earthquake. The invention is particularly applicable for the
beams and columns of a construction.
[0043] In summation of the above description, the present invention
herein enhances the performance than the conventional structure and
further complies with the patent application requirements and is
thus duly filed for patent application.
[0044] While the invention has been described by means of specific
embodiments, numerous modifications and variations could be made
thereto by those skilled in the art without departing from the
scope and spirit of the invention set forth in the claims.
* * * * *