Steel Bollards

Who/what/when/where/why?

Local codes and your insurance carrier will all want a piece of you.

Hey, I was only doing as requested by the owner of the building. Thanks, now I'll be half a day at city hall and the other half on the phone with my insurance carrier.

You forgot to include the cost of the permits in your bid, didn't you?

And, somebody's going to have to haul the post and concrete blob away.

Things must work a little different out here in the west, All I have to do is line locates. No permits are needed for fences, gates or bollards on private property as long as drilling does not go deeper than 2 meters or 6.5 ft.

A renownd scientist had said "Give me a long lever and I will moove the Earth".

I your case the length of bollard above ground is almost the same as below ground while the deficiency is well taken care of by grout and compact soil sorround.

Since cement fill to the bollard top has no steel reinforcement the impact of a collosuion will render it unreliable unless you weld a steel plate at the top.

Conversly speaking you have to reduce the length below ground for the bollard to uproot.

The answer and the mode of failure depend on whether the bollard is struck high or low and we would need to know something about how much water you used to mix the concrete and how well you cured it.

But!

Please, please, stop calling concrete "cement", it drives people like me crazy, we don't know if you mean mortar, grout or concrete. Cement is one ingredient of all of them. Did the ready mix say it was cement or concrete?

Planning laws relating to roadside fencing in Canada

http://www.google.co.uk/search?q=planning+laws+relating+to+roadside+fenching+in+Airdrie%2C+Alberta+%2C+Canada&sourceid=ie7&rls=com.microsoft:en-gb:IE-SearchBox&ie=&oe=&rlz=1I7GGLT_en&redir_esc=&ei=g42TTMqwPNO4jAfo4fmQBQ

http://www.google.co.uk/search?q=roadside+furniture+requirements+&sourceid=ie7&rls=com.microsoft:en-gb:IE-SearchBox&ie=&oe=&rlz=1I7GGLT_en&redir_esc=&ei=-IuTTIzFNYuOjAfg8Lm7BQ

crash barrier testing

http://www.rta.nsw.gov.au/roadsafety/crashlab/crashbarrier/roadfurncrashtest.html

http://www.google.co.uk/search?q=crash+barrier+testing&sourceid=ie7&rls=com.microsoft:en-gb:IE-SearchBox&ie=&oe=&rlz=1I7GGLT_en&redir_esc=&ei=hIyTTPOxEcq6jAeyraGmBQ

United States laws relating to roadside barriers

http://www.google.co.uk/search?q=united+states+planning+laws+for+roadside+barriers&sourceid=ie7&rls=com.microsoft:en-gb:IE-SearchBox&ie=&oe=&rlz=1I7GGLT_en&redir_esc=&ei=royTTLjfPM2TjAfVksXABQ

This bollard, with its cement has no tensile support to the ground, just compressive strength. So a hit by a truck will shift them, repeated hits will loosen them. A rubber bumper will reduce the peak loads at impact, so after the fact, I suggest those. Scrap tires cable on do well at this

One way to deal with this when you place is the place 4 rebars, 5/8" or greater about 6 feet into the earth. Depending on the ground, these can be driven, but you may have to drill a hole for them, then grout them in with cement(no stones) and shape them to the steel pipe goes over them and they are 6 inches below the cap and spaced evenly and at least 3 inches from any surface. Use epoxy coated rebar and coat the cut ends at the top. Rust is the enemy here. Rust from water penetration of the concrete takes up more space than the steel that rusted. This breaks the concrete at the tope. There will not be any side penetration. As you pour the cement make sure you use a rotary wiggler to make sure there are no voids. shape the concrete cap in a rounded way without too much puddling so it is not weakened.

Keep damp for a week. Add the bumpers.

Should last a long time.

http://www.gametrailers.com/user-movie/animal-crackers/115183

http://www.google.ca/#hl=en&safe=off&q=bollard%20%2Bconstruction&um=1&ie=UTF-8&sa=N&tab=vw&fp=1e36e1e592e21b7e

Good morning Wood I.

What is the minimum depth required by your city/county to avoid freezing uplift?

The Alberta Building Code does not specify minimum depth of piles exposed to freezing conditions, but the prevalent practice is to carry them down to three times depth of frost penetration. In an open area that could be 5' (some say 6'), so pile depth by rule of thumb should be 15' to 18'.

I don't think anyone constructs bollards that deep, however. If they lift up a bit, it probably won't be too critical.

I regularly have to but bollards in for storage tank installations. We are required to put in 12 inch steel pipes with 3 feet in the ground 4 feet above ground filled with concrete. As an added piece of protection we also put a 4' x 4' by 2 ft pad around each bollard. I've had a couple hit by our mining equipment 60-100 ton Euclid and it's usually the pipe the bends first then its riped out.