Recent content by STEVE LIU

Yes , I mean the black Yes, I was referring to the black vertical lines. it was just painted a little over a month ago, so seeing these evenly spaced black lines makes me curious about where they came from.

Hi everyone, I have a question. I’ve noticed that many flat-bottom tanks have black lines after being painted. I’m curious about how these occur. Are they caused by the welds (Welded joint )? If so, what is the reason?

Hello I try to establish expansion joint in my sap model, it is a very long tunnel First I am not sure it is necessary to do it or not . second i should use gap or link many thanks for help...

HI~~Bridgebuster thanks for your reply , I will search google first. my fence is under retaining wall, by the way you have a good bounce

HI EireChch thanks for your reply , I also think it is fine my fence only 1 m high, but I need to provided something to proof for owner. have anything can proof ?

HI guys : I have a problem about purchase wrong size of fence. The mesh size should be 50 mm x 50 mm,but we purchase 60 mm x 60 mm. I just wonder what kinds of property influences by size of mesh. strength ? and have any calculation ? what reason for choice mesh size ? I need to check 60 mm...

hi HOTROD10 : I also doubt too, but I don't have ASTM a105/a10n so I cant compare what different it is thank for your reply .... hell no

hello I have a question, because of i need M20 HEX a563 coupling nut to extend anchor. can i replace it with material it is coupling for pipe (FULL COUPLING, CL3000, FNPT, CS ASTM A105N GALV., ASME-B16.11 ).

MANY THANKS GUYS ,THANK FOR YOUR SUGGEST I always don't want to cut off member ,but you know sometimes......... by the way , I usually to solve this issue as below 1. I will make a new section in analysis model to check 2. calculate new section property and local check the member

Hello Everyone : About steel structure, I often encounter some clash problems, and may need to cut off a part of flange of the beam or column etc.... I would like to ask have any book or paper devoted to this aspect about reinforcement or repair of steel structures. Many thanks

Hi JAE~~ Very thank for your help and i check the safety against bouyant uplift. i think ok . But i think my problem is the loading combination to analysis stress and design rebar as below U = 0.9D + 1.2F + 1.6W + 1.6H ......................（6） U = 0.9D + 1.2F + 1.0E +...

Hi~~~racookpe1978 & hawkaz thank for your replied Sorry my roughly describe and i cant upload sketch right now i will do it later. my pit almost 60 m x 60 m depth 5.5 m (underground)(bottom of baseplate) wall thickness (0.6 m) baseplate thickness (1 m) and water level at -3.6m so pit be...

hi~~ U = 1.4（D + F）...............（1） U = 1.2（D + F + T）+1.6（L + H）+0.5（Lr或S或（2） U = 1.2D + 1.6（Lr或s或R）+（1.0L或0.8W）...（3） U = 1.2D + 1.6W + 1.0L + 0.5（Lr或S或R）.........（4） U = 1.2D + 1.2F + 1.0E + 1.6H + 1.0L + 0.2S ............（5 ） U = 0.9D + 1.2F + 1.6W + 1.6H ......................（6） U = 0.9D...

hi~~ＪＡＥ thank for your help and let me explain my situation I design a pit now, and i dont need to consider wind load and earthquake at this area if i consider combination 6 &7 and have not water inside pit U = 0.9D + 1.2F + 1.6W + 1.6H ......................（6） U = 0.9D + 1.2F + 1.0E +...

HI everyone.... i have a basic question confuse me long time. U=1.4(D+F)...............(1) U=1.2(D+F+T)+1.6(L+H)+0.5(Lr or S or R)....(2) U=1.2D+1.6(Lr or s or R)+(1.0L or 0.8 W)...(3) U=1.2D+1.6W+1.0L+0.5(Lr or S or R).........(4) U=1.2D+1.2F+1.0E+1.6H+1.0L+0.2S............(5)...