Experimental Investigation of Reinforced Concrete, High-Redundancy, Walls

Memoria tratta da "The New Boundaries of Structural Concrete: Session B – Controlled-performance Concrete", ACI IC - Ancona 2011

High-redundancy shear walls (HRSW) consist of two main structural systems which embedded each other. These two parts have different energy dissipation mechanism and behaviors. In order to investigate seismic performance of HRSW, five specimens consisting of wall frames with three kinds of structures embedded in them were carried out under low reversed cyclic loading. The tests included three concealed bracings, one reinforced masonry wall, and one shear wall structure, which were reinforced by a single row of steel bars. Experimental studies show that HRSW had redundancy in all five specimens, which reflected a gradation in the destruction. One main part of the structure failed first and absorbed considerable energy exerted by an earthquake simulated in laboratory, whereas the other part still had enough capacity.

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