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Adobe is a traditional construction material used throughout the world in historic and contemporary construction. Adobe structures are frequently located in earthquake-prone regions and due to their substantial mass and low tensile capacity, they are particularly susceptible to the effects of seismic forces. In addition, adobe masonry is often affected by moisture that penetrates from the ground and through the plaster. This paper presents the findings of an experimental program that investigated the effect of moisture on the strength characteristics of four scaled adobe masonry walls tested by applying a monotonic lateral load with varying water contents near their foundation-wall interface. When the water content of the foundation-wall adobe bricks increased by 3.0 and 3.4% points, the load-carrying capacity of the wall decreased by 20% and 25%, respectively. The mechanical behavior of the walls was evaluated and compared using displacement and strain measurements captured with two types of displacement transducers and with Direct Image Correlation (DIC).

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Laboratory Study on the Performance of Scaled Adobe Masonry Walls Under the Effects of Moisture and Monotonic Lateral Loads

  • 会议论文

  • 发表日期：

    2026年

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  • Eduardo Dávila,
  • Brad D. Weldon,
  • Paola Bandini,
  • Michael J. McGinnis,
  • Michael Gangone

摘要

Adobe is a traditional construction material used throughout the world in historic and contemporary construction. Adobe structures are frequently located in earthquake-prone regions and due to their substantial mass and low tensile capacity, they are particularly susceptible to the effects of seismic forces. In addition, adobe masonry is often affected by moisture that penetrates from the ground and through the plaster. This paper presents the findings of an experimental program that investigated the effect of moisture on the strength characteristics of four scaled adobe masonry walls tested by applying a monotonic lateral load with varying water contents near their foundation-wall interface. When the water content of the foundation-wall adobe bricks increased by 3.0 and 3.4% points, the load-carrying capacity of the wall decreased by 20% and 25%, respectively. The mechanical behavior of the walls was evaluated and compared using displacement and strain measurements captured with two types of displacement transducers and with Direct Image Correlation (DIC).