Example administration building „LACES“ adidas in

Example administration building „LACES“ adidas in

Next-generation fire protection services
Performance-based design of a wide-span
steel girder for the headquarter of adidas
Example administration building „LACES“ adidas in Herzogenaurach
•Offices, work shops, laboratories, archive
•Open-plan office, open lounges
2
•Compartments > 400 m , no fire walls, open vertical
onnection of the stroreys
•Fire loads: office supplies, patterns, textiles, prototypes
Fire compartment
•Steel should be visible due to aesthetical reasons
•Saving costs by reducing fire protection
•Authorities require 90 minutes fire resistance for natural
fire
Natural fire simulation
Rate of heat release
40
36
Upper layer
temperature
rate of heat release [MW]
32
28
24
20
16
Plumetemperature
12
8
4
0
0
10
20
30
40
50
60
70
80
90
4800
5400
time [min]
Structural fire design
variation of ventilation conditions
800
Temp[°C] 25% open
Temp [°C] 50% open
700
Temp[°C] 75% open
Temp[°C] 90% open
temperature [°C]
600
500
400
300
200
100
0
0
600
1200
1800
2400
3000
3600
4200
time [s]
Results
•Degree of utilization web µ0 = 0,18 => Ɵcrit = 741 °C => unprotected feasible
•Degree of utilization l.f. µ0 ≈ 0,59 => Ɵcrit = 557 °C => R 30 intumescent coating