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This paper describes the development process of a numerical model for a 15-storey building located in Mexico City and built in 1950. The building is a UNESCO World Heritage Site and the modeling was performed during a recent structural assessment of the building. The structural system has a regular geometry and is based on reinforced concrete frames and masonry walls. Nevertheless, the floor system of the structure is unusual, having a double slab that creates a box section of variable height. In addition, the structure has several eccentric elements. Due to these characteristics, conventional modeling idealizations are not straightforward. In this context, three modeling approaches are evaluated. Based on comparisons in terms of dynamic properties and gravitational internal forces, it is found that a simple but reasonable model is suitable to study the structure. Furthermore, the importance of validating the modeling tools provided by commercial software is highlighted, in order to avoid miscalculations.

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Modeling Approaches for a Modern Heritage Building with an Unusual Floor System

  • 会议论文

  • 发表日期：

    2025年

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  • Fernando Peña,
  • Joel Ramos

摘要

This paper describes the development process of a numerical model for a 15-storey building located in Mexico City and built in 1950. The building is a UNESCO World Heritage Site and the modeling was performed during a recent structural assessment of the building. The structural system has a regular geometry and is based on reinforced concrete frames and masonry walls. Nevertheless, the floor system of the structure is unusual, having a double slab that creates a box section of variable height. In addition, the structure has several eccentric elements. Due to these characteristics, conventional modeling idealizations are not straightforward. In this context, three modeling approaches are evaluated. Based on comparisons in terms of dynamic properties and gravitational internal forces, it is found that a simple but reasonable model is suitable to study the structure. Furthermore, the importance of validating the modeling tools provided by commercial software is highlighted, in order to avoid miscalculations.