ASDSO Dam Safety Toolbox

Gate Performance: Difference between revisions

From ASDSO Dam Safety Toolbox
Jump to: navigation, search
(Created page with "__NOTOC__ ---- <!-- Delete any sections that are not necessary to your topic. Add pictures/sections as needed --> [Paragraph here] ==Measurement Devices== '''Strain Gauge''' *“Two types of gages are generally used for measuring strains: surface gages and internal or embedded gages. These types can be further divided into short- and long-term gages, depending on the duration of measurements. Usually, short-term strains are best measured by electrical type gages, while...")
 
No edit summary
 
(5 intermediate revisions by the same user not shown)
Line 1: Line 1:
__NOTOC__
__NOTOC__
[[Category:Structural Surveillance and Monitoring]]
----
----
<!-- 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 -->
[Paragraph here]
Radial gates and other types of gate systems can be subjected to a range of loading conditions and can experience corrosion or other weakening over time. Strain gages are commonly used to monitor gate performance. “Two types of gages are generally used for measuring strains: surface gages and internal or embedded gages. These types can be further divided into short- and long-term gages, depending on the duration of measurements. Usually, short-term strains are best measured by electrical type gages, while some long-term strains (e.g., creep and shrinkage) can be conveniently measured using detachable mechanical gages”.<ref name="EM 1110-2-4300">[[Instrumentation for Concrete Structures (EM 1110-2-4300) | EM 1110-2-4300 Instrumentation for Concrete Structures, USACE, 1987]]</ref>


==Measurement Devices==
Electrical hoist current draw is another means of monitoring gate performance.
'''Strain Gauge'''
*“Two types of gages are generally used for measuring strains: surface gages and internal or embedded gages. These types can be further divided into short- and long-term gages, depending on the duration of measurements. Usually, short-term strains are best measured by electrical type gages, while some long-term strains (e.g., creep and shrinkage) can be conveniently measured using detachable mechanical gages”.<ref name="EM 1110-2-4300">[[Instrumentation for Concrete Structures (EM 1110-2-4300) | EM 1110-2-4300 Instrumentation for Concrete Structures, USACE, 1987]]</ref>
 
'''Electrical Hoist Current Draw'''
*[Paragraph here]


==Examples==
==Examples==
{{Website Icon}}
{{Website Icon}} [https://damfailures.org/case-study/folsom-dam-california-1995/ Learn more about the importance of monitoring and inspecting gates from the gate failure at Folsom Dam (DamFailures.org)]
==Best Practices Resources==
==Best Practices Resources==
{{Document Icon}} [[Instrumentation for Concrete Structures (EM 1110-2-4300)]]
{{Document Icon}} [[Instrumentation for Concrete Structures (EM 1110-2-4300)|Instrumentation for Concrete Structures (EM 1110-2-4300) (U.S. Army Corps of Engineers)]]
==Trainings==
 
{{Video Icon}}


<!-- For information on notation for in text citations visit https://www.mediawiki.org/wiki/Help:Cite  Or simply enclose the citation as shown <ref> citation </ref> in the location of the in text mention. Citations will automatically populate below-->
<!-- For information on notation for in text citations visit https://www.mediawiki.org/wiki/Help:Cite  Or simply enclose the citation as shown <ref> citation </ref> in the location of the in text mention. Citations will automatically populate below-->

Latest revision as of 20:50, 6 December 2022


Radial gates and other types of gate systems can be subjected to a range of loading conditions and can experience corrosion or other weakening over time. Strain gages are commonly used to monitor gate performance. “Two types of gages are generally used for measuring strains: surface gages and internal or embedded gages. These types can be further divided into short- and long-term gages, depending on the duration of measurements. Usually, short-term strains are best measured by electrical type gages, while some long-term strains (e.g., creep and shrinkage) can be conveniently measured using detachable mechanical gages”.[1]

Electrical hoist current draw is another means of monitoring gate performance.

Examples

Learn more about the importance of monitoring and inspecting gates from the gate failure at Folsom Dam (DamFailures.org)

Best Practices Resources

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



Citations:


Revision ID: 5005
Revision Date: 12/06/2022