Foundation Design Methods Quiz

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What is the primary purpose of an inverted-tee pier cap in bridge design?

To provide a shallow profile beneath the girders for improved aesthetics and clearance

Which design method is recommended for the proper design process of inverted-tee pier caps?

Strut-and-Tie Modeling (STM)

What consideration is crucial for the design of inverted-tee pier caps, particularly in areas experiencing downward bending forces?

The bending capacity of the concrete

Which part(s) of the inverted-tee pier cap require special attention during design?

<p>Both the ledge (corbel) and the web section</p> Signup and view all the answers

What potential effect of the inverted-tee pier cap design on the column and foundation needs to be considered?

<p>Torsional effects due to offset bearing centerlines</p> Signup and view all the answers

What is the primary reason for considering the effective length (K factor) of a column?

<p>To ensure accurate analysis and design of the column</p> Signup and view all the answers

How does the behavior of a column differ between the longitudinal and transverse axes?

<p>The behavior and capacity differ in each direction</p> Signup and view all the answers

In complex bridges, what approach is recommended to clarify the behavior of piers?

<p>Resolve loads into their local components</p> Signup and view all the answers

What factor should be considered when determining the design height of a pier with drilled shaft foundations in soft soils?

<p>The distance from the pier cap to a fixed point within the foundation</p> Signup and view all the answers

In addition to structural considerations, what other factor should designers consider when proportioning columns?

<p>Aesthetics for a visually pleasing bridge design</p> Signup and view all the answers

What is the primary advantage of using hollow columns for very tall piers?

<p>All of the above</p> Signup and view all the answers

What is the primary challenge associated with using cast-in-place concrete for hollow columns?

<p>Difficulty in constructing thin sections onsite</p> Signup and view all the answers

Which method is recommended for constructing hollow columns to maximize their advantages?

<p>Precast, post-tensioned hollow columns</p> Signup and view all the answers

What is the primary consideration when resolving loads into their local components in complex bridges?

<p>Clarifying the behavior of piers</p> Signup and view all the answers

Which of the following statements is correct regarding the design height of a pier?

<p>The design height considers the distance from the pier cap to a fixed point within the foundation when drilled shafts are used</p> Signup and view all the answers

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