钢连梁屈服行为研究：从局部屈服到整体屈服

Initially, the specimen yielded at the steel beam-to-column connection, and gradually transitioned to simultaneous yielding of the steel beam and composite wall limbs. 优化后的翻译：试件最初在钢连梁与柱连接处屈服，并逐渐过渡到钢连梁和组合墙肢同时屈服。