Single Box

SUMMARY OF STRUCTURAL CALCULATION OF PROTECTOR BOX

1 De Design Dimensions and Bar Arrangements

Cass I Road !BM1""# B1.1 x H1.0

T;pe of box c"lert Clear width Clear height Height of fillet Thickness

Side wall Top slab Bottom slab

Coe Coerr of rein reinfo force rceme ment nt bar bar Side wall Top slab Bottom slab

m m m

1.10 1.00 0.15

cm cm cm

20.0 20.0 20.0

!betw !betwee een n concr concrete ete s"r s"rfac facee and cen center ter of of reinfo reinforce rceme ment nt bar# bar# $"tside cm 5.0 %nside cm 5.0 &pper cm 5.0 'ower cm 5.0 'ower cm 5.0 &pper cm 5.0

Bar arrangement

!dia ( spacing per "nit length of 1.0 m#

Side wall

Tensile bar )istrib"tion bar Tensile bar )istrib"tion bar Tensile bar

mm mm mm mm mm

)istrib"tion bar

mm

Tensile bar )istrib"tion bar Tensile bar

mm mm mm

)istrib"tion bar

mm

Tensile bar )istrib"tion bar Tensile bar

mm mm mm

)istrib"tion bar

mm

12@150 12@150 12@150 12@150

+illet bar +illet bar

mm mm

12@150 12@150

'ower o"tside *iddle inside &pper o"tside

Top slab

&pper edge 'ower middle

Bottom slab

'ower edge &pper middle

+illet

&pper edge 'ower edge

12@150 12@150 12@150 12@150 12@150 12@150 12@150 12@150 12@150 12@150

$ Design Design Parameters Parameters &nit ,eight

Backfill soil

'ie 'oad

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