US20050097854A1

US20050097854A1 - L-shaped steel element joint

Info

Publication number: US20050097854A1
Application number: US10/972,376
Authority: US
Inventors: Neng-I Tu
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-11-07
Filing date: 2004-10-26
Publication date: 2005-05-12
Also published as: JP2005139894A

Abstract

An LI-shaped steel element joint includes a base plate having a first through hole and multiple second through holes and multiple L-shaped gusset plates each formed on a corresponding one of four corners of the base plate and having a corner facing the corresponding corner of the base plate. A space is defined between a side of each of the L-shaped gusset plates and a peripheral side of the base plate for corresponding to a thickness of the I-shaped steel element.

Description

BACKGROUND OF THE INVENTION

1. Field of the Invention
The present invention relates to a joint, and more particularly to the joint for joining L-shaped steel elements to reinforce the impact resistance of those elements.
2. Description of Related Art
Currently, the common techniques used in construction sites involve reinforced concrete (RC) and steel reinforced concrete (SRC). Each technique has its own advantages and disadvantages depending on what factors are considered. Despite the advantages and disadvantages between the two techniques, high rise buildings are normally built with the SRC technique and buildings with lower heights are built with the RC technique.
In an SRC building, it is noted that when two L-shaped beam (column) elements are joined, e.g. two elements are horizontally connected to each other, bolts are extended through a steel connecting plate and into wings of each of the two beam elements. Thereafter, welding is carried out to permanently secure engagement between the two L-shaped beam elements. Further, when a beam is connected to a column, e.g. two elements are vertically connected to each other, bolts are first used to secure the two L-shaped elements and then welding is performed to permanently secure engagement between the two L-shaped elements.
Although in an SRC or an RC building, the L-shaped elements do provide a lightweight but durable impact resistance, the wing parts of the L-shaped elements cannot provide enough resistance such that deformation and breakage may easily happen to the joined L-shaped elements when an impact occurs to the structure.
In order to overcome the shortcoming, a different joining structure is developed, in which four L-shaped steel plates are used to form a square. However, due to the length limitation in the production of the L-shaped steel plate, a joint is still required to reach the designated length especially when a beam or a column of a structure is being built. Due to the lack of a proper joint for connection of the L-shaped steel plates, impact resistance of such structure is weak. Thus most current structures still apply the L-shaped elements. However, the aforementioned disadvantage of the I-shaped elements is a major drawback for such a technique.
To overcome the shortcomings, the present invention tends to provide an improved joint for joint I-shaped elements to mitigate the aforementioned problems.

SUMMARY OF THE INVENTION

The primary objective of the present invention is to provide an improved joint to join two L-shaped elements so as to improve the impact resistance of the joined two L-shaped elements.
Other objects, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view showing the first embodiment of the present invention;
FIG. 1A is a schematic view showing a different structure of the first embodiment;
FIG. 2 is a perspective view showing the second embodiment of the present invention;
FIG. 3 is a perspective view showing the third embodiment of the present invention;
FIG. 3A is a schematic view showing a different structure of the third embodiment;
FIG. 4 is a perspective view showing the fourth embodiment of the present invention;
FIG. 5 is a schematic top view showing the application of the joint of the present invention;
FIG. 6 is a schematic side plan view showing that the joint of the present invention is used in construction of a column; and
FIG. 7 is a schematic side plan view showing that the joint of the present invention is used in construction of a beam.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

With reference to FIGS. 1 and 1A, the joint (10A) constructed in accordance with the present invention includes a rectangular base plate (11A) defining therethrough a first through hole (12A), second through holes (13A) selectively communicating with the first through hole (12A) (as shown in FIG. 1A) and anchoring holes (14A) and gusset plates (20A) each formed on a corresponding one of four corners of the base plate (11A) and having at least one assembly hole (21A). A space (22A) is defined between a side plate of each of the gusset plates (20A) and a peripheral side of the base plate (11A). Each gusset plate (20A) has an L-shaped cross section and a corner facing the corresponding corner of the base plate (11A).
When the joint (10A) of this embodiment is applied in a building, wires are able to pass through the first through holes (12A) and liquid concrete is poured through the second through holes (13A). Further, anchoring elements (not shown) are able to extend through the anchoring holes (14A) to fixedly mount the joint of this embodiment into the ground.
With reference to FIG. 2, the joint (10B) constructed in accordance with the present invention includes a rectangular base plate (11B) defining therethrough a first through hole (12B) and gusset plates (20A) each formed on a corresponding one of four corners of the base plate (11B) and having at least one assembly hole (21B). A space (22B) is defined between a side plate of each of the gusset plates (20B) and a peripheral side of the base plate (11B). Each gusset plate (20B) has an L-shaped cross section and a corner facing the corresponding corner of the base plate (11B).
When the joint (10B) of this embodiment is applied in a building, wires and liquid concrete are able to pass through the first through holes (12B). It is further noted that the gusset plates (20B) extend from different directions from the base plate (11B) in this embodiment. An L-shaped steel element (31) having a thickness the same as that of the space (22B) is able to be mounted on the base plate (11B) with the corner of the steel plate (31) mated with the corner of the gusset plate (20B).
With reference to FIGS. 3 and 3A, it is noted that the joint (I OC) of the present invention includes a substantially rectangular base plate (11C) defining therethrough a first through hole (12C), multiple second through holes (13C) selectively communicating with the first through hole (12C) (as shown in FIG. 3A) and gusset plates (20C) each having a corner mated with a corresponding one of four corners of the base plate (11C), wherein a distal side of the gusset plate (20C) is flush with a bottom side of the base plate (11C). In this embodiment, the gusset plates (20C) extend toward one direction from the base plate (11C).
In the embodiment as shown in FIG. 4, the gusset plates (20C) extend from the base plate (11C) toward two different directions.
With reference to FIGS. 5 and 6, when the joint of the present invention is in application in a structure for column construction, the joint (10A) in the first embodiment and having the anchoring holes (14A) is first fixedly mounted into the ground via anchoring elements, e.g. bolts. Then an L-shaped steel element (31) is securely connected to two side walls of each of the gusset plates (20A) of the first embodiment. When the length of the column is not enough and further length is required, the embodiment shown in FIG. 2 is applied, wherein the gusset plates (20B) extending downward from the base plate (10B) are securely connected to the L-shaped steel element (31) which extends upward from the base plate (10A). Then additional L-shaped steel elements are applied to securely connect to gusset plates (20B) extending upward from the base plate (10B). As a consequence the length of the column is increased. Further, in order to avoid the wires becoming contaminated by the liquid concrete, a tube (32) may be inserted into the first through hole (12B) for extension of the wires, as shown in FIG. 5. It is noted that the first through hole (12B) and the second through holes (13B) are combined to become one big through hole.
It is to be noted that in order to accomplish the objective of “light beam and strong column”, a screen (33) is attached onto the beam (30) and the liquid concrete is spread over the screen (33) so that the overall weight of the beam (30) is reduced.
It is to be understood, however, that even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and function of the invention, the disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.

Claims

1. An L-shaped steel element joint comprising:

a substantially rectangular base plate having a first through hole and multiple second through holes; and

multiple L-shaped gusset plates each formed on a corresponding one of four corners of the base plate and having a corner facing the corresponding corner of the base plate, wherein a space is defined between a side of each of the L shaped gusset plates and a peripheral side of the base plate for corresponding to a thickness of the I-shaped steel element, wherein the gusset plates are extended away from the base plate in a first direction.

2. The joint as claimed in claim 1, wherein the first through hole is communicated with the second through holes.

3. An L-shaped steel element joint comprising:

multiple L-shaped gusset plates each formed on a corresponding one of four corners of the base plate and having a corner facing the corresponding corner of the base plate, wherein a space is defined between a side of each of the L-shaped gusset plates and a peripheral side of the base plate for corresponding to a thickness of the I-shaped steel element, wherein the gusset plates are extended away from the base plate in two different directions.

4. The joint as claimed in claim 3, wherein the first through hole is communicated with the second through holes.

5. An L-shaped steel element joint comprising:

multiple L-shaped gusset plates each formed on a corresponding one of four corners of the base plate and having a corner engaging with the corresponding corner of the base plate, wherein a distal side of each of the gusset plates is flush with a peripheral side of the base plate, wherein the gusset plates are extended away from the base plate in a first direction.

6. The joint as claimed in claim 5, wherein the first through hole is communicated with the second through holes.

7. An L-shaped steel element joint comprising:

multiple L-shaped gusset plates each formed on a corresponding one of four corners of the base plate and having a corner engaging with the corresponding corner of the base plate, wherein a distal side of each of the gusset plates is flush with a peripheral side of the base plate, wherein the gusset plates are extended away from the base plate in two different directions.

8. The joint as claimed in claim 7, wherein the first through hole is communicated with the second through holes.