Force–displacement relations of bolted timber joints with slotted-in steel plates parallel to the grain

Journal of Wood Science

Official Journal of the Japan Wood Research Society

Table 1 Specimen types

Specimen series	Bolt diameter d/mm	Specimen thickness l/mm	Slenderness l/d	No. of specimens
S-12-105	12	105	8.8	3
S-12-140	12	140	11.7	3
S-14-140	14	140	10.0	3
S-14-180	14	180	12.9	3
S-14-230	14	230	16.4	3
S-16-140	16	140	8.8	3
S-16-180	16	180	11.3	3
S-16--230	16	230	14.4	3

The specimen series is explained by taking “S-12-105” as an example, where “S” indicates that the loading direction is parallel to the grain; “12” represents the bolt diameter (unit: mm); “105” represents the timber thickness (unit: mm), the direction of which is along the bolt length, and the timber thickness is the bearing length of the steel dowel; and the slenderness represents the ratio of the timber thickness to the bolt diameter