Extensive damage to the bridges in recent earthquakes has revealed the vulnerability of these structures to the seismic excitation. Bridge piers play a key role in maintaining the operability of the bridge structure during and after earthquakes. As determinant elements in single-pier bridges, wall piers significantly affect the bridge structure behavior. Hence, the present experimental study was conducted to examine the seismic performance of wall piers made of modern materials, that is, fiber reinforced concrete (FRC) in RC bridges. Eight wall piers made of steel fiber reinforced concrete (SFRC) with different aspect ratios, steel percentages and concrete strength were subjected to lateral load. The results showed that using SFRC reduced the steel strain within the serviceability range. Compared to conventional concrete, SFRC changes failure modes and deformational characteristics and also increases the energy dissipation capacity, stiffness in every drift values, load-bearing capacity as well as yielding length.

中文翻译：

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钢纤维混凝土墙墩抗震性能试验研究

在最近的地震中对桥梁的广泛破坏揭示了这些结构对地震激发的脆弱性。桥墩在地震期间和地震后保持桥梁结构的可操作性方面起着关键作用。作为单墩桥梁的决定因素，墙墩显着影响桥梁结构的行为。因此，本实验研究旨在检验由现代材料制成的墙墩的抗震性能，即钢筋混凝土桥梁中的纤维增强混凝土 (FRC)。八个由钢纤维混凝土（SFRC）制成的具有不同纵横比、钢百分比和混凝土强度的墙墩承受侧向荷载。结果表明，在使用性能范围内，使用 SFRC 降低了钢应变。与传统混凝土相比，