What is the purpose of a truss

Fachwerk - terms and construction

In general, the framework is a structure made of bars that are only subjected to compression and tension. I would like to limit myself to the wooden framework of old half-timbered houses. Just as it was predominant north of the Alps for many centuries until the 19th century.

1 = threshold
2 = corner stand
3 = stand
4 = wall brace
5 = St. Andrew's Cross
6 = latch
7 = lintel bolt
8 = parapet ledger
9 = Rähm
10 = bar
11 = hem threshold

1st threshold

The lowest horizontal bar of a truss is called the threshold. The various stands or struts are set up on it.

2. Corner stand

The corner stand is a vertical piece of wood that sits on the corner of two walls.

3. Stand

All vertical pieces of wood that rest on a foundation, threshold or plinth are referred to as a stand or stem. If a vertical piece of wood is buried in the ground, it is called a post. No further backup is then required.

4. Wall brace

Wall struts are sloping pieces of wood that run from the threshold to the frame. If the wood runs from the threshold to the stand, it is referred to as a foot brace; if it rises from the frame to the stand, it is called a head brace.

5. St. Andrew's Cross

The St. Andrew's Cross is a figure in a half-timbered association. Here struts are padded crosswise with each other. The name comes from St. Andrew, who was struck on a cross with two sloping sticks.

6. Latch

The horizontal timbers of the wall are called transoms. They are connected to the stands with tenons or overlays.

7. Lintel bolts

Lintel bolts are bolts at the height of the window or door lintel.

8. Parapet ledger

Bars at the height of the window parapet are called parapet bars.

9. Fram

The ceiling beams rest on the frame. It is the upper end of a truss association. The frame creates the longitudinal structure of the construction.

10th beam

Wood stressed in bending is referred to as a beam in half-timbering. The ceiling beams should be mentioned here in particular.

11. Hem threshold

In a two-story half-timbered house, the hem threshold runs parallel to the Rähm. The distance is determined by the thickness of the ceiling joists.