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I got answer from IS code 2911 for standered penitration test. It says that SPT is to be done in a bore hole of dia 100 to 150 mm. If N value is taken in a 500 mm dia bore hole, it is not standard. The results may vary. This was submitted to the consultants and they accepted it. -- Alex Thomas...
We designed a pile foundation for carrying a load of 40 T in Kochi. The sub soil is clayey. N value is very low up to 60m. We designed the pile as friction pile and the cut off was fixed at 35 m. As per geotechnical report the load carrying capacity of 500 mm pile was 60 T, with out considering...
Measurement of Oxygen Transfer in Clean Water , ASCE/EWRI 2-22, provides the latest methods for measuring the rate of oxygen transfer from diffused gas and mechanical oxygenation devices to water. This standard aims to be general enough to be applied to all clean water unsteady-state tests and...
It's Beuro of indian standard IS 800 1984 and IS 800 2007, consider angle equal or unequal legs center of gravity is out side the section, if it's a rectangular section bar center of is at the geometrical center, then if the line of action of the load is coincide with the center of gravity line...
Alex: 1) What code are you referencing? 2) Do you have an example of the type and orientations of your connections? 3) Do you use AISC's Manual of Steel Construction? It does a great job these days of providing connection details especially tubing and pipes. AISC also provides a manual for...
For the design of steel structures what is the provisions in the codes of getting un symmetrical sections fully utilized since lines of action of force and axis of symmetry of the steel structures must be the same for it's.
No worries; I'm glad you found the correct reference. That's what ASCE Collaborate is for! Best of luck, -- Christian Parker P.E., M.ASCE Structural Project Engineer Washington DC --
Thanks for your response. I'm afraid I "jumped the gun" and fired off a question due to a lack of understanding. I was following an FHWA design GoBy calc for some repairs, and they did not consider the composite section of bridge girder, only steel girder properties, and so I assumed that...
Hi Daniel, Great question. I'm not a bridge engineer, but composite design (steel beam/girder engaging a concrete slab in compression) typically assumes general yielding of most or all of the steel section rather than triggering failure at initial yield of the extreme compression or tension...