Abstract In this paper, the lateral performance of multi-story modular buildings is investigated with the effect of a tenon-connected inter-module connection being taken into account. The inter-module connection consists of tenons and through-beam bolts to resist vertical and lateral loads, and the unique configuration allows it to be installed in absence of external access. However, the semi-rigid behaviour of the inter-module connection significantly affects the global performance of the structure. In this study, a simplified joint model is created using Timoshenko beam elements and spring elements within the ABAQUS framework, which substantially reduces the computational costs and makes the system-level analyses practical. Modal analysis and non-linear static (pushover) analysis are conducted on ten modular frames with various design parameters to investigate their performance under lateral loads. Three distinct local and global failure mechanisms are observed. The effects of the strong-column weak-beam configurations, foundation conditions, and axial force levels are discussed in terms of both strength and ductility. The seismic response of the modular frames is assessed using the displacement method, as specified in FEMA-356.

中文翻译：

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使用榫连接的模块间连接的多层模块化建筑的横向阻力

摘要 本文研究了多层模块化建筑的横向性能，并考虑了榫接式模块间连接的影响。模块间连接由榫头和贯穿梁螺栓组成，以抵抗垂直和横向载荷，独特的配置使其可以在没有外部通道的情况下进行安装。然而，模块间连接的半刚性行为会显着影响结构的整体性能。在这项研究中，在 ABAQUS 框架内使用 Timoshenko 梁单元和弹簧单元创建了一个简化的联合模型，这大大降低了计算成本并使系统级分析变得可行。对具有不同设计参数的十个模块化框架进行模态分析和非线性静态（推覆）分析，以研究它们在横向载荷下的性能。观察到三种不同的局部和全局失效机制。从强度和延性两个方面讨论了强柱弱梁配置、基础条件和轴力水平的影响。按照 FEMA-356 中的规定，使用位移法评估模块化框架的地震响应。