This article numerically studies the seismic vulnerability of the frame structure made of ultra-high ductile cementitious composites without longitudinal and transverse reinforcement. A non-linear finite element model is established with the help of Open System for Earthquake Engineering Simulation and calibrated by shaking table test results on an ultra-high ductile cementitious composite-RC frame whose seismic vulnerable parts were replaced by ultra-high ductile cementitious composites without steel reinforcement. Subsequently, an analysis on the structural seismic vulnerability is performed on pure ultra-high ductile cementitious composite frame structure based on the incremental dynamic analysis method. Finally, a seismic vulnerability matrix of the ultra-high ductile cementitious composite frame under various structural limit states is obtained from seismic fragility curves. Under the major earthquake of magnitude 7.5, the probability of ultra-high ductile cementitious composite frame structure under basically intact, slight damage, moderate damage, serious damage, and collapse is 14.2%, 48.1%, 31.7%, 5.3%, and 0.7%, respectively. The achieved results also demonstrate that the ultra-high ductile cementitious composite frame can satisfy the objectivity of “No collapsed under major earthquake” at least for major earthquakes of magnitude 8. It is demonstrated that the ultra-high ductile cementitious composite frame satisfies three-level performance objectivity stipulated in GB 50011-2010 and, thus, preliminarily verifying the feasibility for constructing structures just using high-performance concrete.

中文翻译：

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无钢筋两层超高韧性水泥基复合材料框架的地震脆性分析

本文对无纵横向钢筋的超高延性水泥基复合材料框架结构的地震易损性进行数值研究。借助地震工程模拟开放系统建立非线性有限元模型，并利用超高延性水泥基复合材料-RC框架的振动台试验结果进行标定，该框架将抗震易损件替换为超高延性水泥基复合材料没有钢筋。随后，基于增量动力分析方法对纯超高延性水泥基复合框架结构进行了结构地震易损性分析。最后，从地震脆性曲线得到超高延性水泥基复合材料框架在各种结构极限状态下的地震易损性矩阵。在7.5级大地震下，超高延性水泥框架结构基本完好、轻微破坏、中度破坏、严重破坏、倒塌的概率分别为14.2%、48.1%、31.7%、5.3%和0.7% ， 分别。取得的成果也证明了超高延性水泥复合框架至少在8级大地震中能够满足“大震不倒塌”的客观性。证明了超高延性水泥复合框架满足三个- GB 50011-2010 规定的性能客观性水平，因此，