Several systems exist for designating joints. The terminology is not standardized. As pointed out in the authors’ comments, this book aims at describing a wide variety of splices and joints, describing them in detail. However, no pretense is made of giving an accurate designation for all of the joints, nor do we try to explain […]

The batter posts arc used on frames on which lines arc taut as reference level. The post is tapered to a point at one end to make it easy to drive into the ground. The other end is crossbillcd shaped to facilitate checking of vertical displacements of the posts.

Traditional hand level. Longer levels give more accurate readings. The level is set on top of the surface to be measured. Water is poured into the middle cavity. The hori­zontal line is found when an equal quantity of water flows on either side down the slot. In general, the length of the level is two […]

(Engowo no keta) This is a more complex joint than the previous hip corner joints. The structure is composed of two log girders, joined in a Tee-shape and of a log girder nose. The girder nose (В 1) gives the assembly a balanced look. The shorter girder (B-2) seems to form a single continuous member […]

(Yosemune no sumi) Three kinds of hip rafter joint with five sun pitch will be introduced (one sun is one tenth of a foot). All of these joints have common characteristics. The roof rafters (including corner’s cave brackets) arc normal to each other and all of them have the same pitch. (1) Tee-shaped girder joint […]

(Koya daimochi) Sometimes tic beams must be spliced and tied to an interna! roof beam network. The unique characteristic of this joint is that neither the lower tie beam nor theupper tic beam suffer a reduction in section at their splicing point. Thc diagram displays the arrangement of such a joint with provision for a […]

© The tie beam is set onto the column(column head: stepped tenon). яшшя • CONNECTING JOINT II •

This roofing system joins very special­ized elements. The cave girders run on top of the columns on the outer walls. The rafters arc connected to tic beams called the rainbow beams. The rainbow beams are supported by the cave girders. The support­ing point of the rainbow beams is deter­mined with a tool called the rainbow […]

(Dodai shiguchi) (1) Housed dovetail (ari otoshi) A dovetail is carved on half of the depth of one member. A rectangular mor­tise runs through the depth of the second member immediately behind the mortise for the dovetail. A column with a simple tenon may complete the assembly. A draw pin secures the column to the […]

This assembly connects three beams on three faces of a column. The two oppo­site beams arc spliced through the column. The first beam to be connected (beam 1, short male) is perpendicular to the other two beams. A dowel secures it to the col­umn. The second part of the assemblageproceeds in the same fashion as […]