binderholz CLT BBS

BINDERHOLZ CLT BBS | PRE-DIMENSIONING Single span Requirements: Usage class UCL 1 (interior spaces k def = 0.8) Permanent load g 1k : permanent structural load without dead load of CLT BBS (already included in the calculation) Live load n k : categories A and B (residential and office spaces: ψ 0 = 0,7 ψ 1 = 0,5 ψ 2 = 0.3 medium load duration, k mod = 0.8) Fire rating according to EN 1995-1-2 and expert opinion IBS-319072401-1 (burning rate for ceilings β n = 0.9 mm/min) Design of the ceiling thickness as to the serviceability limit states: l/300: serviceability of the deflection according to Eurocode 5 Table 7.2 Vibration requirements subdivided by CCL 1 and CCL 2: CCL2 (Ceiling class 2) - Ceilings within one utilisation unit - Ceilings in single-family homes with normal use CCL1 (Ceiling class 1) - Ceilings between different utilisation units (also continuous ceilings) - Use as housing separation ceilings in multi-family dwellings - Ceilings in offices with PC use or meeting rooms - Corridors with short span widths Cross-sectional values: Calculation of CLT BBS cross-sections according to the Gamma method. For continuous beams l eff = 4/5 * l These tables may be used for pre-dimensioning of CLT BBS and do not replace static calculations. The characteristic loads are uniformly distributed loads. Load (kN/m) g1,k nk Span width 3,5 m 4,0 m 4,5 m 5,0 m 5,5 m 6,0 m Permissible end deflection l/300 CCL2 CCL1 l/300 CCL2 CCL1 l/300 CCL2 CCL1 l/300 CCL2 CCL1 l/300 CCL2 CCL1 l/300 CCL2 CCL1 1,0 1,0 90 100-5s 140 90 120-5s 160 120-3s 120-5s 160 120-3s 140 180 140 140 180 160 160 220 1,0 2,0 90 100-5s 140 100-3s 120-5s 160 120-3s 140 160 140 140 180 140 140 180 160 160 220 1,0 3,0 100-3s 100-5s 140 120-3s 120-5s 160 120-3s 140 160 140 140 180 160 160 180 160 160 220 1,0 4,0 100-3s 120-5s 140 120-3s 140 160 140 140 160 160 160 180 160 160 180 180 180 220 2,0 1,0 100-3s 120-5s 140 120-3s 120-5s 160 140 140 160 140 160 180 160 180 220 180 200 240 2,0 2,0 100-3s 120-5s 140 120-3s 140 160 140 140 160 160 160 180 160 180 220 180 200 240 2,0 3,0 100-3s 120-5s 140 120-3s 140 160 140 140 160 160 160 180 180 180 220 200 200 240 2,0 4,0 120-3s 120-5s 140 140 140 160 140 140 160 160 160 180 180 180 220 200 200 240 3,0 2,0 120-3s 120-5s 140 140 140 160 140 140 180 160 160 200 180 180 240 220 220 240 3,0 3,0 120-3s 140 140 140 140 160 160 160 180 180 180 200 200 200 240 220 220 240 3,0 4,0 120-3s 140 140 140 140 160 160 160 180 180 180 200 200 200 240 220 220 240 3,0 5,0 120-3s 140 140 140 140 160 160 160 180 180 180 200 200 200 240 220 220 240 Double span The length of the shorter field is between 80% and 100% of the longer field. Load (kN/m) g1,k nk Span width 3,5 m 4,0 m 4,5 m 5,0 m 5,5 m 6,0 m Permissible end deflection l/300 CCL2 CCL1 l/300 CCL2 CCL1 l/300 CCL2 CCL1 l/300 CCL2 CCL1 l/300 CCL2 CCL1 l/300 CCL2 CCL1 1,0 1,0 80-3s 100-5s 120-5s 80-3s 100-5s 140 90-3s 120-5s 160 100-3s 140 160 120-3s 140 180 120-3s 160 220 1,0 2,0 80-3s 100-5s 120-5s 90-3s 100-5s 140 90-3s 120-5s 160 100-3s 140 160 120-3s 140 180 140 160 220 1,0 3,0 90-3s 100-5s 120-5s 90-3s 100-5s 140 100-3s 120-5s 160 120-3s 140 160 140 140 180 140 160 220 1,0 4,0 90-3s 100-5s 120-5s 100-3s 120-5s 140 120-3s 140 160 140 140 160 140 140 180 160 160 220 2,0 1,0 80-3s 100-5s 140 90-3s 120-5s 140 100-3s 140 160 120-3s 160 180 120-3s 160 180 140 160 220 2,0 2,0 80-3s 100-5s 140 90-3s 120-5s 140 100-3s 140 160 120-3s 160 180 140 160 180 140 180 220 2,0 3,0 90-3s 100-5s 140 100-3s 120-5s 140 120-3s 140 160 120-3s 160 180 140 160 180 160 180 220 2,0 4,0 90-3s 100-5s 140 120-3s 120-5s 140 120-3s 140 160 140 160 180 160 160 180 160 180 220 3,0 2,0 90-3s 120-5s 140 100-3s 120-5s 160 120-3s 140 160 140 160 180 140 160 200 160 180 220 3,0 3,0 90-3s 120-5s 140 120-3s 120-5s 160 120-3s 140 160 140 160 180 160 160 200 160 180 220 3,0 4,0 100-3s 120-5s 140 120-3s 140 160 140 140 160 140 160 180 160 160 200 180 180 220 3,0 5,0 100-3s 120-5s 140 120-3s 140 160 140 140 160 160 160 180 160 180 200 200 200 220 R30 R60 R90 3s ... 3 layers | 5s ... 5 layers > 0,8 * L

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