Забугорные чертежи лестничных маршей. Пусть будет американские.

Чертежи лестничных маршей

Описание на английском

stair grating modified

fab. details of staircase

1. all dimensions are in mm and levels are in metres.

2. the cut length of members and size of gussets shall be verified at site by full scale layout.

3. all gussets & stiff. plts. are 8mm thk. unless otherwise specified.

4. all fillet welds shall be 6mm unless otherwise specified.

5.    denotes holes for permanent bolts and

6. all erection bolt holes are 17.5∅ hole for m16 bolts u.o.s.

7. all strucutral steel sections shall be astm a36 (fy= 248 n/sq. mm)

all builtup plates shall be grade 50 with (fy=345n/sq.mm) 

structural tube shall be astm a 500 grade b or astm a 501 

unless noted. all strucutral pipe shall be astm a 501, fy= 36ksi (248 n/sq.mm)

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