中文摘要：

为了研究活性粉末混凝土（Reactive Powder Concrete，简称RPC）桥梁的设计理论与设计方法，对一跨20mRPC低高度T形梁进行设计、试验和理论研究。通过对该RPC梁进行静力加载试验，测试梁体的跨中位移和跨中下翼缘的应力变化情况，并对裂缝开展情况进行记录分析。试验结果表明，梁体的承载能力、抗裂性以及竖向刚度均能够满足规范要求，并且有很大的安全储备，同时对裂缝的开展规律进行讨论。通过建立有限元模型，对弹性阶段梁体的跨中位移和下翼缘应变进行计算分析，其计算结果与测试结果符合较好，验证了试验结果的准确性。试验和理论研究结果对RPC桥梁的设计理论和设计方法研究有重要的参考价值。

英文摘要：

Abstract： A low-height reactive powder concrete （RPC） T-shape beam was constructed and tested to study the design theory and method of RPC bridges. The mid-span displacement and the bottom flange strain were measured and analyzed in a static loading experiment on the RPC T-beam, and so was the distribution of cracks. Experimental results indicate that the bearing capacity, the crack resistance and the vertical rigidity satisfy the requirements of the code with higher factors of safety. The calculated displacements were in good agreement with the test results. The experimental and the theoretical results may serve as a reference for RPC bridge design theory.