KR101703146B1 - Method of Connecting Steel Structure, and Connected Structure of Steel Structure - Google Patents

Method of Connecting Steel Structure, and Connected Structure of Steel Structure Download PDF

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Publication number
KR101703146B1
KR101703146B1 KR1020160010650A KR20160010650A KR101703146B1 KR 101703146 B1 KR101703146 B1 KR 101703146B1 KR 1020160010650 A KR1020160010650 A KR 1020160010650A KR 20160010650 A KR20160010650 A KR 20160010650A KR 101703146 B1 KR101703146 B1 KR 101703146B1
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KR
South Korea
Prior art keywords
steel structure
steel
present
joining
continuously arranged
Prior art date
Application number
KR1020160010650A
Other languages
Korean (ko)
Inventor
진승영
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진승영
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Priority to KR1020160010650A priority Critical patent/KR101703146B1/en
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Publication of KR101703146B1 publication Critical patent/KR101703146B1/en

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • E04B1/2403—Connection details of the elongated load-supporting parts
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/58—Connections for building structures in general of bar-shaped building elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • E04B1/2403—Connection details of the elongated load-supporting parts
    • E04B2001/2415—Brackets, gussets, joining plates
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • E04B1/2403—Connection details of the elongated load-supporting parts
    • E04B2001/2418—Details of bolting
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • E04B1/2403—Connection details of the elongated load-supporting parts
    • E04B2001/2427—Connection details of the elongated load-supporting parts using adhesives or hardening masses

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)

Abstract

According to the present invention, disclosed is a coupling construction method, and a coupling structure, of a steel structure. The present invention is implemented by the following processes of: consecutively arranging the steel frame structures to be coupled, mutually coupling an upper portion and a web of the consecutively-arranged steel frame structures by use of a bolt, installing a sheath pipe and a mold in a lower portion of the mutually-coupled steel frame structures to be coupled, casing and curing concrete in the mold, and applying tensile force by use of the sheath pipe. According to the present invention, additionally coupling a bolt is not required in a lower portion of the coupled part of the steel frame structures, and thus effectiveness and economy may be boosted with respect to a coupling design of the steel frame structures and the related construction.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of joining steel structures,

The present invention relates to a joining construction method of a steel structure and a joining structure of a steel structure, and more particularly, to a joining structure of a steel structure, And more particularly, to a joining construction method of a steel structure and a joining structure of a steel structure.

 Rigid and complicated design standards such as steel structure design criteria (limit state design method: LRFD) are applied to the design of joining (joining) of various steel structures subjected to warping such as I-shaped steel, H-shaped steel and T- In the coupling design in the lower flange where tensile forces are generated, more stringent and complex design criteria are applied.

The rigidity and complexity of such coupled design standards is a significant burden for structural engineers, which is a factor that leads to inefficiencies and inefficiencies in related design implementations.

Accordingly, it is an object of the present invention to provide a steel structure structure capable of achieving efficiency and economical efficiency in joint designing and related construction of a steel structure as a separate bolt connection at a lower portion of a steel structure joining portion becomes unnecessary. A joining construction method and a steel structure joining structure.

According to an aspect of the present invention, there is provided a method of assembling a steel structure according to the present invention. (b) fastening the upper and the lower portions of the continuously arranged steel structure to each other using bolts; (c) installing a sheath tube and a mold on a lower portion of the steel structure to be joined, which are fastened to each other using the bolts; And (d) placing and curing concrete in the mold and introducing a tensile force using the sheath tube.

Preferably, in the step (d), compressive stress is generated in the lower portion of the mutually coupled steel structures to be joined, and tensile stress is generated in the upper portions of the mutually coupled steel structures .

Further, the sheath pipe is installed at a lower portion of a kern region on a joining end surface of the steel structure to be joined.

Also, the joining object steel structure is a T-shaped steel material.

Meanwhile, the joining structure of the steel structure according to the present invention includes: a steel structure continuously arranged; A bolt coupling portion for coupling upper and / or lower portions of the continuously arranged steel structures to each other; A sheath tube installed at a lower portion of the joining portion of the continuously arranged steel structure; And a concrete placed under the joining portion of the continuously arranged steel structure, wherein compressive force is applied to the continuously disposed steel structure as the tensile force is introduced by using the sheath pipe.

Preferably, the introduction of the tensional force generates compressive stress in the lower portion of the steel structure, which is fastened to each other, and tensile stress is generated in the upper portion of the steel structure which are fastened to each other.

Further, the sheath pipe is installed at a lower portion of a kern region on a joining end surface of the steel structure to be joined.

Further, the steel structure is a T-shaped steel.

According to the present invention, the separate bolt connection at the lower part of the joint part of the steel structure is not required, so that the joint design of the steel structure and the efficiency and economical efficiency in the related construction can be achieved.

Brief Description of the Drawings Fig. 1 is a perspective view of a steel structure according to an embodiment of the present invention,
FIGS. 2 to 5 are views for explaining a procedure of a method of assembling a steel structure according to an embodiment of the present invention;
FIG. 6 is a view showing a kern region in a connection section of a steel structure according to an embodiment of the present invention, and FIG.
FIG. 7 is a view showing a combined state of a steel structure according to another embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to the drawings. It is to be noted that the same elements among the drawings are denoted by the same reference numerals whenever possible. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

FIG. 1 is a view showing a steel structure which is coupled to each other by a method of assembling a steel structure according to an embodiment of the present invention. As shown in FIG. 1, in the practice of the present invention, an operator has at least two steel structures 100 to be combined with each other.

Meanwhile, in the practice of the present invention, the steel structure 100 to be coupled to each other may be various steel structures such as H-shaped steel and T-shaped steel in addition to the I-shaped steel as shown in FIG.

FIGS. 2 to 5 are views for explaining a process of implementing a method of assembling a steel structure 100 according to an embodiment of the present invention. Hereinafter, a method of assembling a steel structure 100 according to an embodiment of the present invention will be described with reference to FIGS. 2 to 5. FIG.

First, the operator joins the web 120 of the steel frame structure 100 with bolts and nuts in a state where the steel frame structures 100 are in contact with each other as shown in FIG. 2, Is formed at the center of the steel structure 100.

2, the upper flange 110 of the steel structure 100 is also fastened to the upper flange 110 of the steel structure 100 by using bolts and nuts, .

In carrying out the present invention, the operator may assemble the bolts tightly in at least one of the abdomen portion 120 and the upper flange portion 110 of the steel structure 100 as needed, The lower and the lower flange portions of the abdomen portion 120 where the concrete 170 is to be installed in the process should not be provided with the bolt coupling portion 140.

Next, the worker installs the stirrup reinforcing bars 160 and the sheath pipe 150 at the lower part of the bolted steel structure 100 as shown in FIG. 3, and installs the formwork 220. A support 230 is installed on the lower part of the formwork 220 to support the formwork 220 so that the weight of the bolted steel structure 100 is supported through the support 230.

3, a plurality of supports 230 may be installed to support the bolted steel structure 100 by a plurality of supports 230 to support the steel structure 100 in a bolt- It is desirable to prevent the unnecessary upper and lower tensile forces from being generated due to the self weight.

3, a portion of the weight of the bolted steel structure 100 may be borne by a load (not shown) The support 210 may be provided.

3, a plurality of struts 210 may be installed to support a bolt-connected steel structure 100 by a plurality of struts 210 so that the bolts of the steel structure 100 It is desirable to prevent unnecessary upper and lower tensile forces from being generated in the bolted steel structure 100 due to its own weight.

3, the sheath pipe 150 installed at the bottom of the bolted steel structure 100 includes a plurality of sheath pipes 150 installed independently for each steel structure 100, 100 at the joining portions of the first and second plates.

Then, the operator places the concrete 170 in the formwork 220 as shown in FIG. 4, thereby filling the lower portion of the bolted steel structure 100. Specifically, the lower portion of the bolted steel structure 100 Only the lower portion of the flange 130 and the abdomen 120 is buried and the upper portion of the upper flange 110 and the abdomen portion 120 having the bolt coupling portion 140 are laid so that the concrete 170 is not buried.

As shown in FIG. 5, the worker having laid the concrete 170 demolds the workpiece 220 after the concrete 170 is cured.

In the meantime, in the practice of the present invention, only the early curing of the concrete 170 is performed, and the operator finishes the final curing in the state where the worker is kept on the floor such as the floor as shown in FIG. , It is desirable that the apparatus for manufacturing the formwork 220 or the like be dedicated.

Then, the operator inserts the steel wire into the sheath pipe 150 of the steel structure 100 and tensions the steel structure 100 as shown in FIG. 5, thereby introducing a tension force to the lower portion of the steel structure 100.

As a result of introducing a tensile force to the lower portion of the coupled steel structure 100, a compressive force is generated in the connecting end surface of the steel structure 100, thereby securing the structural stability at the jointed portion of the steel structure 100 do.

More specifically, according to the present invention, a compressive force is applied to the lower portion of the steel structure 100 through pre-tensioning at the lower portion of the joint portion in the jointing of the steel structure 100, The tensile force generated at the lower portion of the steel structure 100 due to the flexural behavior of the steel structure 100 in the steel structure 100 is canceled by the compressive force formed by the pre- The installation of the unit 140 becomes unnecessary.

As described above, according to the present invention, since separate bolt connection at the lower part of the joint part of the steel structure 100 is not required, efficiency and economical efficiency in joint designing and related construction of the steel structure 100 can be achieved .

In the practice of the present invention, in a kern region on the cross section of the steel structure 100 (the composite section of the steel structure 100 and the lower concrete) so as to generate a compressive force over the entire area of the joint section of the steel structure 100, The sheath tube 150 may be installed and tensed by inserting a steel wire. However, as shown in FIG. 6, the sheath tube 150 is installed in the lower region P of the kern region Kb + Kt on the cross section of the steel structure 100 150 may be installed and tensioned by inserting a steel wire.

6, a tensile force is generated in the upper portion of the steel structure 100 when tensions are generated in the lower region P of the kern region on the cross section of the steel structure 100, The tensile force generated at the upper portion of the structure 100 is canceled by the compressive force generated by the self weight in the installed state of the steel frame structure 100.

In addition, when a plurality of steel structures 100 are continuously connected to each other, it is also possible to sequentially perform the concrete placement and the joining construction through the steel line tensions at the joining sites of the adjacent two steel structure 100 as described above. 7, the steel structure 100 may be combined at one time by the simultaneous placement of the concrete at the plurality of joint portions of the continuous steel structure 100 and the steel wire tensions.

In addition, according to the present invention, since the lower portion of the steel structure 100 is embedded in the concrete 170, the lower flange 130 of the steel structure 100 is substantially unnecessary. Accordingly, in the practice of the present invention, the operator may use a T-shaped steel material without the lower flange 130 as shown in FIG. 7, and the lower flange 130 is not included in the T- Steel will be saved.

In the present invention, it is also possible to omit the fixing portion reinforcing bars or the like by attaching a steel wire fixing plate (not shown) to the abdomen portion 120 or the lower flange 130 of the steel structure 100.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention.

100: steel structure, 110: upper flange, 120: abdomen, 130: lower flange,
140: fastener, 140: bolt coupling part,
150: sheath tube, 160: stirrup reinforcement,
170: concrete, 210: pillar,
220: Form, 230: Support.

Claims (4)

(a) disposing a steel structure to be joined to be continuous;
(b) mutually fastening the upper and lower belts using bolts, except bolt fastening in the lower part of the continuously arranged steel structure;
(c) installing a sheath tube and a mold on a lower portion of the steel structure to be joined, which are fastened to each other using the bolts; And
(d) placing and curing concrete in the mold and introducing a tensile force by using the sheath tube
/ RTI >
The step (c)
Wherein a sheath pipe is installed in a lower region (P) of a kern region (Kb + Kt) on a cross section of the steel structure so that a tensile force is generated on the upper portion of the steel structure to be joined.
The method according to claim 1,
Wherein the joining object steel structure is a T-shaped steel material.
A continuously arranged steel structure;
A bolt coupling portion for coupling the upper portion and / or the abdomen portion to each other except for the bolt fastening at the lower portion of the continuously arranged steel structure;
A sheath tube installed at a lower portion of the joining portion of the continuously arranged steel structure; And
The concrete placed on the lower part of the joining portion of the continuously arranged steel structures
/ RTI >
As the tension force is introduced by using the sheath tube, compressive force is applied to the continuously arranged steel structure,
Wherein the sheath pipe is installed in a lower region (P) of a kern region (Kb + Kt) on a cross section of the steel structure so that tensile force is generated on the continuously disposed steel structure. .
The method of claim 3,
Wherein the steel structure is a T-shaped steel.
KR1020160010650A 2016-01-28 2016-01-28 Method of Connecting Steel Structure, and Connected Structure of Steel Structure KR101703146B1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100888941B1 (en) * 2008-10-20 2009-03-16 (주)크로스구조연구소기술사사무소 Concrete-composite crossbeam and construction methods using the same
KR100893876B1 (en) * 2008-08-13 2009-04-20 주식회사 스틸코리아 A lever rule prestressing segment girder and its construction method
KR20100009273A (en) * 2008-07-18 2010-01-27 김연호 Method for constructing prestressed composite beam structure using multiple supporting points and block placement and structure prepared thereby
KR20100050142A (en) * 2008-11-05 2010-05-13 이호찬 Steel concrete composite crossbeam and construction method using the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100009273A (en) * 2008-07-18 2010-01-27 김연호 Method for constructing prestressed composite beam structure using multiple supporting points and block placement and structure prepared thereby
KR100893876B1 (en) * 2008-08-13 2009-04-20 주식회사 스틸코리아 A lever rule prestressing segment girder and its construction method
KR100888941B1 (en) * 2008-10-20 2009-03-16 (주)크로스구조연구소기술사사무소 Concrete-composite crossbeam and construction methods using the same
KR20100050142A (en) * 2008-11-05 2010-05-13 이호찬 Steel concrete composite crossbeam and construction method using the same

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