Blast tests on three existing two-story, single-bay cross-laminated timber (CLT) structures at Tyndall Air Force Base were successful, according to WoodWorks, a program working with the Wood Products Council.
“On-site observations were decidedly positive; all structures remained intact under significant explosive loading well beyond their design capacity,” according to a council news release. This was the second phase of blast testing on CLT structures conducted by WoodWorks.
“Last year, we tested the structures under their own self-weight,” said Bill Parsons, vice president of operations for WoodWorks. “Those tests were successful and, this year, we built on that effort by testing whether the design methods established as a result of those initial tests needed to be adjusted when the buildings carried typical gravity loads and included different connection configurations, increased panel thickness, and alternate mass timber wall systems.”
One building used 5-ply CLT front wall panels, the second used off-the-shelf prefabricated angle brackets, and the third included nail-laminated timber (NLT) front panels. All three structures remained standing following the fourth and largest blast, intended to take the structures well beyond their design intent. While panel rupture was observed on all front and side wall panels, the buildings maintained enough residual capacity to remain intact and safe to enter, the release says.
Related Stories
Codes and Standards | Jun 22, 2020
Natl. Renewable Energy Labs, Cold Climate Research Ctr. team up on extreme weather research
Focus on renewable power, sustainable transportation, energy efficiency, and energy systems integration.
Codes and Standards | Jun 19, 2020
Demand for family rentals expected to jump over next few years
Developers’ focus on single, urban millennials leaves family market underserved.
Codes and Standards | Jun 17, 2020
AIA offers retail and office 3D models for reducing risk of COVID-19 transmission
For modifying stores and offices with 17-point architectural, engineering, and administrative framework.
Codes and Standards | Jun 17, 2020
Santa Fe is second city in the world to achieve LEED v4.1 Gold
New Mexico community gained credits for resilience planning, including public health crises.
Codes and Standards | Jun 15, 2020
NSF International’s Checked by NSF program helps businesses reopen safely
Includes third-party validation of COVID-19 preventive measures.
Codes and Standards | Jun 15, 2020
Workers want policy changes before they return to offices
More office cleaning, work from home opportunities, and staying home when sick among the desired adjustments.
Codes and Standards | Jun 12, 2020
Carbon emission legislation prompts commercial real estate to innovate
Mass timber, augmented reality, and modular construction among the trends.
Codes and Standards | Jun 11, 2020
USGBC offers new pilot credit to address green cleaning and COVID-19
Provides guidance on cleaning and disinfecting buildings using green cleaning best practices.
Codes and Standards | Jun 10, 2020
AIA issues tools for reducing risk of COVID-19 transmission in buildings
Tailored strategies offered for offices, retailers, schools, and senior living facilities.
Codes and Standards | Jun 8, 2020
OSHA construction safety inspections fall 84% during COVID-19 pandemic
Agency focuses on preventing disease transmission in healthcare industry.