Filter:

Multiple Response Spectrum curves with different damping properties in Staad

Every material has got its own unique damping properties and so the RCC or Steel . Currently, in STAAD we have seen  performing response spectrum analysis against only single RS data for a specific load…

When Sewage Hits the Street

It was a rainy Friday afternoon, back when I was executive director of the Wyoming Valley Sanitary Authority, a regional wastewater system. We had a long force main along the river that intercepted flow from…

Chlorine vs. Chloramines—Which One Wins?

Chlorine and chloramines are both effective disinfectants used in water distribution systems. Each has its own advantages and disadvantages, and the debates over their tradeoffs have gone on for decades. Most customers can’t tell you…

Optimize Communication Tower Workflows

With the advancement of 4G and build-out of the 5G network occurring at about the same point of time for multiple carriers – and a significant percentage of carrier capital expenditure going towards micro cell…

How do I Plan Flushing of Water Distribution Systems?

When I’m asked the above question, my usual answer is, “Why do you want to flush?” You can’t figure out how to flush water mains until you understand why you’re doing it. One of the…

Picking Pumps in Complex Force Mains

Selecting the right pump for a wastewater force main that has a single pump station is usually straightforward. Generate the system head curve, find a pump whose operating point lines up with the pump’s best…

Is this Model Calibrated?

“Is this model calibrated?” is a question I don’t feel comfortable answering with a yes or no answer, because a yes/no answer is inherently arbitrary. Mathematician Gorge Box is quoted as saying “All models are…

OpenFlows FlowMaster – So simple your boss can use it

Suppose you know the characteristics of a gravity sewer, but you’d like to know the percent full and Froude number when it carries 20 L/s. You can dig out your old hydraulics book, look up…

Use case: Geotechnical analysis for parking facility

Organization: Adviseurs in Bouwtechniek (ABT) Location: Historical Groningen, The Netherlands Project ABT designed the deep excavation for a new cultural center parking garage close to historically significant buildings and needed to  investigate the risk of…

Where’s that Big Button that says, “Save my energy”?

Saving energy is a multi-faceted problem and there is not a single solution. There are plenty of ways of wasting energy and it takes some analysis to determine WHY energy is being wasted before moving…