Engineering Tables - PPH Walkway Systems Support Pressure Tables

Table 1: Roof Pressure Under 2' Wide Walkway for Various Load Cases Shown

					One	Two	One	Two	One	Two
Load Case	25 psf	50 psf	75 psf	100 psf	150 lb	150 lb	200 lb	200 lb	250 lb	250 lb
Pads 12"x12"	0.9 psi	1.6 psi	2.3 psi	3.0 psi	1.2 psi	2.3 psi	1.6 psi	3.0 psi	1.9 psi	3.7 psi
Pads 18"x18"	0.4 psi	0.7 psi	1.1 psi	1.4 psi	0.6 psi	1.1 psi	0.7 psi	1.4 psi	0.9 psi	1.7 psi

Table 2: Roof Pressure Under 3' Wide Walkway for Various Load Cases Shown
  

					One	Two	One	Two	One	Two
Load Case	25 psf	50 psf	75 psf	100 psf	150 lb	150 lb	200 lb	200 lb	250 lb	250 lb
Pads 12"x12"	1.3 psi	2.3 psi	3.4 psi	4.4 psi	1.3 psi	2.4 psi	1.7 psi	3.0 psi	2.0 psi	3.7 psi
Pads 18"x18"	0.6 psi	1.1 psi	1.5 psi	2.0 psi	0.6 psi	1.1 psi	0.8 psi	1.4 psi	0.9 psi	1.7 psi

Table 3. Roof Pressure Under 4' Wide Walkway for Various Load Cases Shown
 

					One	Two	One	Two	One	Two
Load Case	25 psf	50 psf	75 psf	100 psf	150 lb	150 lb	200 lb	200 lb	250 lb	250 lb
Pads 18"x18"	0.9 psi	1.5 psi	2.2 psi	2.8 psi	0.8 psi	1.2 psi	0.9 psi	1.5 psi	1.1 psi	1.8 psi