ASDSO Dam Safety Toolbox

Plumbness: Difference between revisions

From ASDSO Dam Safety Toolbox
Jump to: navigation, search
No edit summary
No edit summary
Line 2: Line 2:
----
----
<!-- Delete any sections that are not necessary to your topic. Add pictures/sections as needed -->
<!-- Delete any sections that are not necessary to your topic. Add pictures/sections as needed -->
“Plumb lines, inverted plumb lines, and optical plummets are designed to accurately measure bending, tilting, or deflection of concrete structures resulting from external loading to the structure, temperature changes within the structure, sliding of the structures, or deformation of the foundation. Through the measurement of structural deformations, they will furnish information in regard to the general elastic behavior of the entire structure and foundation, provide a means for determining the elastic shape of the deflected structure which will permit separation of lead deflection and thermal deflection components, and, with precise alignment data, provide for estimating the amount of translation or sliding”.<ref name="EM 1110-2-4300">[[Instrumentation for Concrete Structures (EM1110-2-4300) | EM 1110-2-4300 Instrumentation for Concrete Structures, USACE, 1987]]</ref>
“Plumb lines, inverted plumb lines, and optical plummets are designed to accurately measure bending, tilting, or deflection of concrete structures resulting from external loading to the structure, temperature changes within the structure, sliding of the structures, or deformation of the foundation. Through the measurement of structural deformations, they will furnish information in regard to the general elastic behavior of the entire structure and foundation, provide a means for determining the elastic shape of the deflected structure which will permit separation of lead deflection and thermal deflection components, and, with precise alignment data, provide for estimating the amount of translation or sliding”.<ref name="EM 1110-2-4300">[[Instrumentation for Concrete Structures (EM 1110-2-4300)| Instrumentation for Concrete Structures (EM 1110-2-4300), USACE, 1987]]</ref>


==Best Practices Resources==
==Best Practices Resources==

Revision as of 18:04, 16 September 2022


“Plumb lines, inverted plumb lines, and optical plummets are designed to accurately measure bending, tilting, or deflection of concrete structures resulting from external loading to the structure, temperature changes within the structure, sliding of the structures, or deformation of the foundation. Through the measurement of structural deformations, they will furnish information in regard to the general elastic behavior of the entire structure and foundation, provide a means for determining the elastic shape of the deflected structure which will permit separation of lead deflection and thermal deflection components, and, with precise alignment data, provide for estimating the amount of translation or sliding”.[1]

Best Practices Resources

Engineering Guidelines for the Evaluation of Hydropower Projects: Chapter 9- Instrumentation and Monitoring (Federal Energy Regulatory Commission)

Instrumentation for Concrete Structures (EM 1110-2-4300) (U.S. Army Corps of Engineers)



Citations:


Revision ID: 3461
Revision Date: 09/16/2022