Example 2: Strengthening a beam with near-surface-mounted CFRP strips - Strengthening of Concrete Structures with Adhesively Bonded Reinforcement - page 70

Fig. 6.1 Downstand beam system requiring strengthening

Fig. 6.2 Section through downstand beam, (section A-A)

p rare g 1 ; k g 2 ; k q k 30 5 50 85 kN = m

In order to determine the prestrain condition during strengthening, which according to
DAfStb guideline [1, 2] part 1 section 5.1.1 (RV 19) must be considered for a quasi-
permanent load combination, we get the following for load case 2:
X

X
i 1 ψ 2 ; i ? Q k ; i

G k ; j P

j 1

p perm g 1 ; k 30 kN = m

Loads on the system in kN/m 2 for the various load cases. Table 6.1

Load case 1 2 3

g 1,k (dead load) 30.0 30.0 30.0

g 2,k ( (fitting-out load) 5.0 — 5.0

q k (imposed load, category B) 25.0 — 50.0