About the author ⁄ James LaBelle, P.E., Doc.E.

James LaBelle is a Consultant with experience in the design and investigation of aluminum and other structures. He is retired from CSD Structural Engineers, Milwaukee, WI, and is a member of the Aluminum Association’s Engineering Design Task Force, FGIA (formerly AAMA), and ASTM. (jlabelle@csd-eng.com)

Test-based Available Strengths for Aluminum Structures

Part 2

This is Part 2 of a two-part series. Part 1 (STRUCTURE, September 2021) summarized two methods, including equations for finding available strengths for aluminum based on tests. It also includes plots of calculated safety factors for various conditions. Part 2 compares results from these methods. Please note that Figure numbering continues from Part 1.

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Oct, 2021 By James LaBelle, P.E., Doc.E. In Building Blocks Comments 0

Test-Based Available Strengths for Aluminum Structures

Part 1

This is Part 1 of a two-part series. This installment summarizes two methods of determining available strengths from testing of aluminum structures, presents equations, and includes selected plots of calculated safety factors. The next part will discuss and compare the results from the two methods.

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Sep, 2021 By James LaBelle, P.E., Doc.E. In Building Blocks Comments 0

Flexural Strength of Extruded Aluminum Mullions

Curtain walls use extruded aluminum mullions to support glass lites, which are subjected to wind pressures acting inward and outward on the building exterior (Figure 1). The primary loading on mullions is flexure, but determining their flexural strength is complicated by several factors: …

Oct, 2019 By J. Randolph Kissell, P.E. and James LaBelle, P.E., Doc.E. In Structural Specifications Comments 0

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