Structural engineering

Repairing Wood Roof Trusses in Historic Masonry Buildings: Structural Solutions for Building Professionals

Historic churches and civic buildings built during the nineteenth century across the United States commonly feature wood framed roof trusses supported by mass masonry exterior walls. These structures, designed using empirical building traditions rather than modern engineering mechanics, often contain latent structural deficiencies that emerge over decades of service. Understanding the failure modes specific to […]

Structural Engineering Strategies for Hybrid Mass Timber: San Mateo County’s COB3 Project Achieves 85 Percent Embodied Carbon Reduction

Structural engineers working on low-carbon civic buildings face a critical challenge: achieving dramatic embodied carbon reductions without compromising structural performance, safety, or serviceability. San Mateo County’s County Office Building 3 (COB3), designed by Skidmore, Owings and Merrill (SOM) and currently under construction in Silicon Valley, provides a compelling case study in hybrid mass timber structural

Pre-Engineered Steel Structures for Civic Facilities: How Oregon’s Civic Park Field House Achieved Structural and Cost Efficiency

When a fire destroyed the historic Eugene Civic Stadium in Oregon, the community saw an opportunity not just to rebuild but to reimagine what a civic sports facility could deliver. The result is Civic Park, a multi-phase redevelopment project anchored by a 3,716-square-meter (40,000-square-foot) field house built on a pre-engineered steel structure. For building professionals

In-Situ Structural Repairs for Stucco-Clad Exterior Elevated Elements: Addressing Glulam Beam Deterioration

Understanding Stucco-Clad EEEs and the Stucco Bucket Problem Exterior elevated elements (EEEs) such as balconies, walkways, exterior stairs, and landing platforms are among the most weather-exposed components in any building. When clad in stucco without adequate drainage and ventilation, they create conditions that lead to hidden structural deterioration. The term stucco buckets describes these enclosed

In-Situ Repair Methods for Stucco-Clad Exterior Elevated Elements

Recent structural collapses of exterior elevated elements (EEEs) such as balconies, walkways, and stairs have drawn increased attention to the inspection and maintenance of these building features. Stucco-clad EEEs exposed to weather present particular risks because the stucco assembly can trap moisture against structural wood members over extended periods. This sustained wetting accelerates decay of

Structural Steel Corrosion in Masonry Buildings: Assessment, Repair, and Prevention Strategies

Structural steel embedded within masonry walls has served as a reliable load-bearing system for over a century, yet corrosion remains a persistent threat. When moisture contacts unprotected steel, oxidation produces rust scale occupying up to ten times the original metal volume, damaging both steel and masonry. Understanding corrosion mechanisms, assessing section loss, and implementing maintenance

AISI Publishes New Cold-Formed Steel Research for Mid-Rise Building Design

The American Iron and Steel Institute (AISI) has released three new research reports on cold-formed steel specification for shear wall systems in mid-rise construction. These studies, conducted at McGill University, represent a significant step forward in understanding how cold-formed steel (CFS) framing behaves under lateral loads, enabling engineers to design taller, more efficient buildings with

Loadbearing Masonry Wall Failures: Lessons from a Historic Building Structural Assessment

Loadbearing masonry walls have been a foundational element of building construction for centuries, offering durability, fire resistance, and thermal mass that few modern systems can match. However, the structural behavior of these walls depends on continuous load paths and proper support conditions — factors that are easily compromised during renovations. When loadbearing masonry walls are