Hi, Guys, Need help here.
I remember there was a thread before, which discusses about the crushed stone size for use as non-expansive frostfree fill. But I can not find this thread now. Can anybody direct me to that thread or tell me what is the max./min. crushed stone size for non-expansive...
Hi, Guys, Need help here.
I remember there was a thread before, which discusses about the crushed stone size for use as non-expansive frostfree fill. But I can not find this thread now. Can anybody direct me to that thread or tell me what is the max./min. crushed stone size for non-expansive...
I got a customer enquiring about a 90mph (or 100mph) gust definition. His question is how long this 90mph gust last will be defined as 90mph wind. 3s? or 5s?, can anybody help me to answer this question? Thanks
We usually reduce 10% negative moment in continuous W shape beam in our past design projects, which is allowed per LRFD Section A5.1. Now our company is going to change to use AISC 13th. I am not sure if it is still allowed to have this 10% reduction in negative moment. I can not find the same...
I am reading PCI Design Handbook, Example 4.2.2.2, in the Table, there is a "Transfer Pt.at release P=Po". Is "Transfer Pt." means Transfer Point?. How to determine its location?
Thank you very much for your help.
Need help please, can anybody help me to find the basic wind speed in Lethbridge, Albert, Canada? I need work on a project over there. ASCE7-05 only gives US basic wind speed map.
Thank you very much.
A 5" width, 1" thickness, 12" clear span plate, exerted a load P. I guess most people will consider case (a) as simply supported boundary condition, and case (b) as fixed boundary condition.
My question: is there any statement in any code which can justify above assumption?
Should there any...
ACI and PCI basiclly deal with same material, i.e. concrete, why in ACI, Ie=0.35Ig or 0.25Ig is used in calculating the member or slab deflection. While in PCI, the gross Ig is used in calculating the member or slab deflection? That makes no sense.
Can anybody tell me how to use Table3-22b in AISC 13th edition? I will appreciate it very much if somebody can give an example showing how the Table3-22b in AISC 13th edition is used. Thank you very much in advance.
I am involved in a project using hollow precast beam. But I am only familiar with reinforced concrete beam. Can I treat it the same way as concrete beams? How should I deal with those hollow holes which go through all the whole beam length? Can you please also recommend me some good design books...
Hello Guys,
If you were asked to design a Tower foundation, It has following requirements:
The tower will be 4-legs, about 10'x10' square, 120'height.
need sitting on a dump pit trench wall(the dump pit trench also need you to design), the dump trench is about 500' long, the width depends on...
One is a steel eccentrically braced frames, non-moment-resisting, connections at columns away from links, the other is special steel concentrically braced frames, if they have same effective seismic weight, which one will have larger seismic base shear?
