查看完整版本 : Socket H Pile 一問

mtrckcrc 2019-1-9 10:30 AM

Socket H Pile 一問

Why does the size of socket H Pile are always 305x305x180 UBP or 305x305x223UBP?

mtrckcrc 2019-1-9 10:32 AM

Can it be 356x406 series UC using a larger diameter size temporary casing?

jeffCK1 2019-1-10 05:40 PM

[quote]原帖由 [i]mtrckcrc[/i] 於 2019-1-9 10:32 AM 發表 [url=https://www.discuss.com.hk/redirect.php?goto=findpost&pid=493138908&ptid=27961285][img]https://www.discuss.com.hk/images/common/back.gif[/img][/url]
Can it be 356x406 series UC using a larger diameter size temporary casing? [/quote]

SHP系主打Vertical Force,305x305x223配610casing系最經濟實惠的,你加大個casing size只會增加建造成本

當然,呢個系由contractor角度分析,由design角度又系另外一個問題,比如356x406個force transfer系點樣我就唔清楚

mtrckcrc 2019-1-10 05:43 PM

[quote]原帖由 [i]jeffCK1[/i] 於 2019-1-10 05:40 PM 發表 [url=https://www.discuss.com.hk/redirect.php?goto=findpost&pid=493213105&ptid=27961285][img]https://www.discuss.com.hk/images/common/back.gif[/img][/url]


SHP系主打Vertical Force,305x305x223配610casing系最經濟實惠的,你加大個casing size只會增加建造成本

當然,呢個系由contractor角度分析,由design角度又系另外一個問題,比如356x406個force transfer系點樣我就唔清楚 ... [/quote]
Thanks for your reply. Using larger pile size may reduce the number of piles. For 356x406 UC, I think 813 dia. Casing could handle it. Not sure if it has cost advantages compare with traditional SHP size.

jeffCK1 2019-1-11 11:08 AM

[quote]原帖由 [i]mtrckcrc[/i] 於 2019-1-10 05:43 PM 發表 [url=https://www.discuss.com.hk/redirect.php?goto=findpost&pid=493213248&ptid=27961285][img]https://www.discuss.com.hk/images/common/back.gif[/img][/url]

Thanks for your reply. Using larger pile size may reduce the number of piles. For 356x406 UC, I think 813 dia. Casing could handle it. Not sure if it has cost advantages compare with traditional SHP  ... [/quote]


813 casing係施工方面成本好貴,唔係部部砲機夠力做到,風力又要夠大,砲頭又要大size,唔係間間公司有…從design角度,如果你話用356 406的話咁係用邊隻鐵先,計SHP個axial force capacity係0.5fyAs,除非你用最勁size的356鐵,如果唔係個As數值唔會大太多,根本補償唔到施工成本,仲有lateral force呢?UC Steel 係lateral force一定會差d,同埋rock socket length 都要改變…好有機會計番條施工數係得不償失的。所以香港真係好少人用356鐵黎做SHP😂
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