This paper proposes a new type of brace with elastoplasticity in tension. The brace is made of laminated wood with a hole in the center and a steel bar through the hole. Prestress force is applied to the brace. The brace absorbs earthquake energy in tension and maintain rigidity in compression in the case of large earthquake. And, the brace avoids brittle failure against tensile force. We confirmed the hysteresis characteristics of the brace by experiments, decided material, size and detail. And then we discuss the mechanics of buckling and compensating effects.
