N

Splitting capacity of member exceeds the design force in the member; therefore OK.

Example 10.13.4 The timber truss shown in Figure E10.13.4 functions in service class 2 conditions and supports a combination of permanent and medium-term variable loading. The loading from the roof structure is applied uniformly along the top boom members of the truss and the effect of the self-weight of the truss can be ignored. The truss joint at node B comprises five members connected by two 16 mm diameter mild steel bolts fitted with washers compliant with the requirements of EC5. Members 1 are 225 mm deep by 47 mm thick, members 2 are 175 mm deep by 47 mm thick, and member 3 is 200 mm deep by 37 mm thick. Members 1 are of strength class C22, and members 2 and 3 are of strength class C18, in accordance with BS EN 338:2003. The contribution to the load-carrying capacity of the joint by each bolt due to the rope effect can be taken to be 15% of the Johansen part of the relevant strength equations given in EC5.

Confirm that the joint will comply with the requirements of EC5 at the ultimate limit states (ULS). (There is no requirement to check spacings, edge and end distances.)

Data: Member 1

0 0

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