About the author ⁄ Andrew E. Geister, P.E.

Andrew Geister, P.E., is an engineer with Atkinson-Noland & Associates, Inc., specializing in masonry investigation through nondestructive, in-situ, and laboratory material testing. He is also a member of multiple committees in The Masonry Society. Andrew can be reached at ageister@ana-usa.com.

Building on the Past

Determining Existing Masonry Structural Properties

Design professionals rely on numbers. Some of the most important numbers represent the design loads on a structure during an event with a certain probability of occurring, and the resistance of the structure given its geometry, material properties, and connections. In a new structure, these quantities are generally known, specified, and listed on project documents. Design loads are determined by building codes and jurisdiction. Material properties are specified by the designer and verified through testing. …

Nov, 2017 By Andrew E. Geister, P.E. In Structural Testing Comments 0

Investigating Masonry Structures

Nondestructive and Minimally Invasive Techniques

In a STRUCTURE® article published earlier this year, the author discussed some of the components of a nondestructive evaluation (NDE) program for existing masonry structures, and what types of information could be obtained through such methods. This article aims to elaborate on the procedures and techniques used to investigate existing masonry structures and diagnose potential issues. …

Jun, 2013 By Andrew E. Geister, P.E. In Articles, Structural Testing Comments 0

Evaluating Existing Masonry Construction

Nondestructive and In -Situ Methods

Owners and designers may find themselves confronted with the task of deciding what to do with an existing masonry building, particularly if there will be a change of use or modifications to the structural system. Part of that decision should include determination of whether the structural system is adequate in its current condition for the building’s intended use, whether minor or extensive repair and retrofit measures are required, or whether the building has deteriorated to a state that it is beyond its usable life. …

Mar, 2013 By Andrew E. Geister, P.E. In Articles, Structural Testing Comments 6

Current Issue	Resource Guide