摘   要：以某装配式钢筋混凝土框架剪力墙结构办公楼为研究背景，采用数值模拟方法，建立了三维装配式UHPC-NC叠合梁数值模型，研究了不同材料参数对装配式UHPC-NC叠合梁抗弯性能的影响。结果表明：提高NC的抗压强度对试件承载力和刚度的提升幅度较小；提高UHPC的抗拉强度对构件极限承载力的提高也不显著；增加UHPC受拉高度对构件抗弯承载力的提高显著；在实际工程中可通过提高纵筋配筋率来提高构件的极限抗弯承载力。

Abstract: Taking a multi-layer prefabricated reinforced concrete frame shear wall structure office building as the research background, a three-dimensional bending numerical model of UHPC-NC composite beams was established by using numerical simulation methods. The influence of different material parameters on the bending performance of the UHPC-NC composite beam structure was analyzed. The results show that the increase in NC compressive strength has a negligible increase in the load-bearing capacity of the composite beam, and it has an improvement in the stiffness of the composite beam, but the increase is not significant. Improving the tensile strength of UHPC can only slightly enhance the ultimate bearing capacity of the component. Increasing the tensile height of UHPC can effectively improve the flexural bearing capacity of composite beam structures. In practical engineering, the ultimate bearing capacity of the component wrist can be improved by increasing the ratio of longitudinal reinforcement under tension.