PROJECTS > RELIGIOUS INSTITUTIONS > Cathedral of Our Lady of the Angels

Project Description / Overview

Owner's Goal: An artistic/architectural space with exposed walls providing strength, stiffness and a longevity of over 500 years. With the use of advanced analysis/ design methods, material sciences, and technology, NYA developed creative solution methodology to transform these performance goals into quantifiable engineering parameters.

 

Creativity: Although the building is essentially two stories and 150 feet tall, it has multiple roof diaphragm levels and shapes. The architectural features of the design (exposed concrete, tall slender walls, and an abundance of glass) placed exceptional demands on the structural design and construction. Response modification using differential isolation, global finite element models, and nonlinear time history analyses was performed to study the global response to these challenges. For the concrete walls, (BIAX), moment curvature analysis was performed to assess cracking at displacement points, and several different stress-strain models for concrete tension behavior were created.

 

Quality Control
• A concrete mix was developed to reduce long-term deterioration
• Polypropylene fibers added to interrupt propagation of cracking
• Concrete mock-ups to simulate different aspects of the walls
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