PSI - Issue 70

Anchal kaw et al. / Procedia Structural Integrity 70 (2025) 161–168

166

= ƴ

(2)

= [ 3(1+ ) ( 1+ ( 1− 1 ) 2 ]− 0.5 = [{ 1+ } − 0.5 ] ≥

(3)

(4)

= 1+ 3 ( 1− 1 ) 2

(5)

where Sa = Seismic coefficient ƴa R p= =I mcpoomr pt aonnceenftarcet os pr or na ns eg ems of rdoi fmi c a1t(i oo tnhfearc et ol ermr aenngt se)s tfor o1m. 5 1( i mt op3o. r5t a n t e l e m e n t s ) WAaa == sweeisigmhitcoafmNpSlEification factor (See Table 3. ) z = height of NSEs above the building base hq a == obveehr aa vl li ohre ifgahc tt oorf b( Su ei led iTnagb l e 3 . ) TTa = time period of NSEs 1 S == stoimil feapcteorriod of building Table 3. Values of qa and Aa for NSEs ( Eurocode 2-Design of concrete structures-Part 4: Design of fastenings for use in concrete , 2018 )

Type of Non-structural elements

Behavior factor (qa)

Amplification factor (Aa)

Cantilever parapets, signs and billboards, Hazardous material storage and fluid piping Storage racks Conveyors, electrical equipment Elevators, anchorage elements for false ceilings Non-hazardous fluid piping High pressure and fire suppression piping Anchorage elements for book stacks Chimneys, masts and tanks (acting along more than one half of their total height) Chimneys, masts and tanks (acting along less than one half of their total height)

1.0 1.0 2.0 2.0 2.0 2.0

3.0 3.0 3.0 3.0 1.5 3.0 3.0 1.5 3.0

2.0 2.0 1.0

2.0

1.5

4. Results and Discussions The lateral forces acting on these elements on each floor of hospital and commercial buildings are evaluated using IS 16700:2023 and Eurocode 8. Results reveal that hospital buildings having a greater number of NSEs are subjected to larger lateral forces as compared to commercial buildings. Also, these forces acting on these NSEs increase with increase in the storey height of the building as shown in Fig 2 and 3. The lateral forces calculated from IS 16700:2023 are significantly lower as compared to that of Eurocode 8. The forces obtained from Eurocode 8 are approximately twice as high as those obtained from Indian code. This clearly shows that the Indian codes