How do They do That? — Install the Shear Vertical Pin and Bushing Assembly
This series in “How do They do That?” takes us again to the basement (Level “B”) of the structure where it is cool and dimly lit. Level “B” is where the structural components — Base Isolators and Dampers — for protecting the hospital structures against seismic activity are located and anchored to the foundation floor. At the Loma Linda University Health Campus Transformation Project (LLUHCTP) there are four major elements, noted in this blog,…
…that make up the earthquake protection system. They include: 1) the moat, 2) the foundation, 3) the dampers, and 4) the base isolators. In this blog, I will focus on the base isolator and its components. To put this post into context, we will review the elements of the Base Isolator and how they were assembled.
The Base Isolators became a factor during the foundation rebar installation phase. The pin sleeves were the first units that were set for the Base Isolator. They were embedded in the foundation rebar framework stage, and would be encased in the concrete foundation. The first four pin sleeves were set in the southwest elevator pit on January 31, 2017.
The Shear Vertical Pin and Bushing Assembly Installation
After graduate school Dennis accepted a position at Loma Linda University. He worked there for 42 years in the areas of administration and financial management, also teaching accounting and management to dietetic students at the School of Public Health. Through the years Dennis has chronicled the growth of the campus, including the construction of the Drayson Center and the Centennial Complex and the razing of Gentry Gym. He is the author of "The Mound City Chronicles: A Pictorial History of Loma Linda University, A Health Sciences Institution 1905 - 2005." dEp 09.30.2016 🔨