The present invention relates to a bracing diagonally installed in a frame. More particularly, the present invention relates to a buckling-preventing bracing in which a main body portion constituting the bracing has an open section and a buckling prevention plate can be coupled with both sides of a web of the main body portion for excellent expandability with respect to an increase in load. The present invention relates to the buckling-preventing bracing relates to a buckling-preventing bracing diagonally installed in a frame. The buckling-preventing bracing includes the main body portion including an upper flange, a lower flange, and a web connecting the flanges to each other, each of both ends of the main body portion being coupled inside the frame; and a buckling prevention plate coupled with both sides of the web of the main body portion in the length direction of the main body portion.;COPYRIGHT KIPO 2018
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