KR-102960328-B1 - STEEL CURTAIN WALL HAVING AN ELASTIC COUPLING STRUCTURE

Abstract

The present invention relates to a steel curtain wall comprising: a mullion portion having a through hole and forming a vertical frame; a transom portion having a coupling groove and forming a horizontal frame; and a coupling portion disposed in the through hole and fixedly coupling the mullion portion and the transom portion, wherein the coupling portion is provided as a cylindrical spring with a portion of its circumference open, and one side protruding outside the through hole is inserted into the coupling groove of the transom portion and then elastically restored to press the inner surface of the through hole and the coupling groove, thereby fixedly coupling the mullion portion and the transom portion.

Inventors

• 김정훈
• 황학연

Assignees

• 주식회사 에이치지

Dates

Publication Date

20260507

Application Date

20260123

Claims (5)

1. A mullion portion that forms a vertical frame and has a through hole formed therein; A transom portion that forms a horizontal frame and has a coupling groove formed therein; and It includes a coupling member disposed in the above-mentioned through hole and fixedly coupling the mullion part and the transom part, The above-mentioned connecting part is, A steel curtain wall having an elastic coupling structure, characterized in that a cylindrical spring with a portion of the circumference open is provided, and one side protruding outside the through hole is inserted into the coupling groove of the transom part and then elastically restored to press the inner surface of the through hole and the coupling groove, thereby fixing the mullion part and the transom part.
2. In claim 1, The above mullion part is, Column section in the shape of a square tube with an internal hollow interior; Wing portions extending from both sides of the above-mentioned column portion; and A steel curtain wall having an elastic coupling structure, characterized by including a flat plate portion extending from the rear of the column portion.
3. In claim 2, The above transom part is, A main body in the shape of a square tube with an internal hollow interior; and A steel curtain wall having an elastic coupling structure, characterized by including an extension portion formed extending from one side of the main body portion.
4. In claim 3, The above wing portion is, A steel curtain wall having an elastic coupling structure, characterized by being provided with a shape corresponding to the internal hollow shape of the transom part, and being inserted into the internal hollow of the main body part of the transom part when the mullion part and the transom part are combined.
5. In claim 1, The above mullion section and the above transom section are, A steel curtain wall having an elastic bonding structure, characterized in that a zinc plating layer is formed on the surface and a powder coating layer is formed on the upper surface of the zinc plating layer.

Description

Steel curtain wall having an elastic coupling structure The present invention relates to a steel curtain wall, and more specifically, to a steel curtain wall equipped with an elastic bonding structure that improves long-term durability through a double surface treatment and an elastic bonding structure, and can stably secure bonding strength between mullions and transoms while reducing construction deviations. With the recent increase in demands for building exterior quality and construction efficiency, curtain wall systems constituting the building envelope are being applied in various forms. In particular, steel curtain walls are widely used as exterior systems for medium and large-sized buildings due to their excellent strength and durability, and it is common practice to support glass or panels through a frame structure consisting of mullions and transoms. Since these steel curtain walls must simultaneously ensure constructability and structural stability, the connection method between each component and surface durability serve as important technical factors. Conventional steel curtain walls often applied only a basic powder coating to the surfaces of frame members during the manufacturing and construction process. However, powder coating alone does not provide sufficient resistance to rust or corrosion in environments exposed to the outdoors for extended periods, which can lead to a decline in frame durability over time. In particular, corrosion tends to progress rapidly in areas where stress and moisture are concentrated, such as cut edges or around fastening holes, resulting in increased maintenance costs and reduced structural reliability. Furthermore, bolt fastening is predominantly used to connect mullions and transoms. While this method offers the advantage of relatively simple installation, the degree of bolt tightening can vary depending on the worker's skill level, and failure to achieve a tight seal occurs frequently. Consequently, problems such as reduced joint strength or the development of play in the connection points due to repetitive loads and vibrations may arise. Additionally, when torsional forces or loads are applied to the bolted structure, the straightness of the transom may deteriorate, potentially causing the overall alignment of the curtain wall to become disrupted. As such, conventional steel curtain wall structures have limitations, such as insufficient durability against corrosion or reliability of the joint structure varying depending on operating conditions. Therefore, there has been a continuous need for surface treatment technologies capable of improving the long-term durability of frame members, as well as new joint structures that can stably ensure adhesion and bonding strength between mullions and transoms while reducing construction deviations. FIG. 1 illustrates a mullion portion of a steel curtain wall having an elastic coupling structure according to one embodiment of the present invention, and FIG. 2 illustrates the transom portion of the steel curtain wall of FIG. 1, and FIG. 3 illustrates the joint of the steel curtain wall of FIG. 1, and FIG. 4 illustrates a joint of a modified structure in which a protrusion is formed of the steel curtain wall of FIG. 1, and FIG. 5 illustrates the steel curtain wall of FIG. 1 before assembly, and Figure 6 shows the combined appearance of the steel curtain wall of Figure 1. Hereinafter, some embodiments of the present invention will be described in detail with reference to the exemplary drawings. It should be noted that in assigning reference numerals to the components of each drawing, the same components are given the same reference numeral whenever possible, even if they are shown in different drawings. In addition, when describing embodiments of the present invention, if it is determined that a detailed description of related known configurations or functions would hinder understanding of the embodiments of the present invention, such detailed description is omitted. In addition, terms such as first, second, A, B, (a), (b), etc., may be used when describing the components of the embodiments of the present invention. These terms are used merely to distinguish the components from other components, and the essence, order, or sequence of the components is not limited by the terms used. Now, with reference to the attached drawings, a steel curtain wall (100) having an elastic coupling structure according to one embodiment of the present invention will be described in detail. FIG. 1 illustrates a mullion portion (110) of a steel curtain wall (100) having an elastic coupling structure according to an embodiment of the present invention, FIG. 2 illustrates a transom portion (130) of the steel curtain wall (100) of FIG. 1, FIG. 3 illustrates a coupling portion (120) of the steel curtain wall (100) of FIG. 1, FIG. 4 illustrates a coupling portion (120) of a modified structure having a protrusion (121) formed thereon of the steel cur