Timber Bearing Design

Project description

User Namai

Position

HECO - HCS - Timber construction design

(1 By 7) Page 1

Project information

Planned construction

Deadline 2015.05.19

Item overview

Description

Article number

Diameter

Length 300 mm

8,5 mm

46838

TOPIX-CC 8,5 x 300

Type Cylinder head

VE/piece 50

Number 12

Result

Number of screws 12 TOPIX-CC 8,5 x 300

Nopre-drilled

6 mm=Edge distance

48 mm=Screw distancce

40 mm=Edge distance

176 mm=Screw distancce

32 mm=Edge distance

90 =Screw-in angle

Version: 3.0.2.33

HECO-Schrauben GmbH & Co.KG

Dr.-Kurt-Steim-Strasse 28 D-78713 Schramberg

Phone: +49 (0)7422 989-0 Fax: +49 (0)7422 989-200 2015.05.19

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Geometry

CarrierGlulam, homogeneousMaterial

GL28hClass of strength

NoDouglas fir

YesSpruce, pine or fir

240= mmWidth

500= mmHeight

Pressure distribution panel16= mmThickness

SupportEnd supportType

240= mmWidth

284= mmLength

0= mmOverhang

Screws0= mmMinimum distance from support edge

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Load

Single load / line load with support distanceSupport reaction due to

200= mmDistance of impact to support

1Class of usage

Permanent characteristic load108,00= kN

1,35=Partial safety factor

PermanentLoad effect duration class

Variable characteristic load80,00= kN

1,30=Partial safety factor

MediumLoad effect duration class

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Static verification

LCC1 Load case combination permanent

LCC2 Load case combination permanent and variable

Support pressure

Aef = l * Min(bA; b)

l [mm] bA [mm] b [mm] Aef [mm]

314 240 240 75360

c,90,d = Fc,90,dAef

Fc,90,d [kN] Aef [mm] c,90,d [N/mm]145,80 75360 1,93LCC1

249,80 75360 3,31LCC2

fc,90,d = kmod * fc,90,kM

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kmod f c,90,k [N/mm] M f c,90,d [N/mm]0,60 3,00 1,30 1,38LCC1

0,80 3,00 1,30 1,85LCC2

= c,90,dkc,90 * fc,90,d

* 100%

c,90,d [N/mm] kc,90 f c,90,d [N/mm] [%]1,93 1,00 1,38 139,73LCC1

3,31 1,00 1,85 179,55LCC2

Support pressure with reinforcement

Fax,,Rk = n * fax,k * d1 * lef

1,2 * cos + sin * (k

350)

0.8

n fax,k [N/mm] d1 [mm] lef [mm]

1 12,50 8,0 292

[] k [kg/m] Fax,,Rk [kN]90 410 33,13

Fax,,Rd = kmod * Fax,,Rk

Mkmod Fax,,Rk [kN] M Fax,,Rd [kN]0,60 33,13 1,30 15,29LCC1

0,80 33,13 1,30 20,38LCC2

Npl,k = * d21

4 * fy,k

d1 [mm] f y,k [N/mm] Npl,k [kN]

4,85 900 16,63

Npl,d = Npl,kM

Npl,k [kN] M Npl,d [kN]16,63 1,10 15,12

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R90,d,1 = kc,90 * B * lef,1 * fc,90,d + n * Min(Fax,,Rd; c * Npl,d)kc,90 B [mm] lef,1 [mm] f c,90,d [N/mm]

1,00 240 314 1,38LCC1

1,00 240 314 1,85LCC2

n Fax,,Rd [kN] c Npl,d [kN]12 15,29 0,66 15,12LCC1

12 20,38 0,66 15,12LCC2

R90,d,1 [kN]

224,24LCC1

259,02LCC2

R90,d,2 = B * lef,2 * fc,90,d

B [mm] lef,2 [mm] f c,90,d [N/mm] R90,d,2 [kN]

240 578 1,38 192,07LCC1

240 578 1,85 256,10LCC2

R90,d = Min(R90,d,1; R90,d,2)

R90,d,1 [kN] R90,d,2 [kN] R90,d [kN]

224,24 192,07 192,07LCC1

259,02 256,10 256,10LCC2

= VdR90,d

* 100%

Vd [kN] R90,d [kN] [%]145,80 192,07 75,91LCC1

249,80 256,10 97,54LCC2

Support pressure179,55%=

Support pressure with reinforcement97,54%=

The screw is suitable for the selected system.

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Construction notes

1. Determination pursuant to DIN EN 1995-1-1 2010-12 & DIN EN 1995-1-1/NA 2010-12 inconnection with approval number ETA-12/0132 for HECO TOPIX-CC full-thread screws as woodconnection media.

2. The screws may only be used for static or quasi-static loads. 3. Wood moisture content must be less than 20%. 4. The loads transferred by the screw forces must be taken up without deformation of the support. 5. All calculations must be verified and cleared before performance by the responsible bearing

structure planner.

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Documents

Timber Bearing Design