A timber roof truss is a structural framework of timbers designed to bridge space above a room and to provide support for a roof. Trusses usually occur at regular intervals, linked by longitudinal timbers such as purlins. The space between each truss is known as a bay.
Timber roof trusses were a medieval development. Earlier roofs had been supported by coupled rafters ? pairs of rafters linked by horizontal beams. But such roofs were structurally weak, and lacking any longitudinal support were prone to racking, a collapse resulting from horizontal movement.
Roof made with timber

The terrace bricks of 15*7.5*2.5cm in size are laid on-edge in diagonal rows with lime mortar 1:11/2 proportion closely packed spanning over beams. The brickwork is n cured by sprinkling with water for a period of 10 days. After brickwork has set, a layer of lime concrete is laid and consolidated so as to give a compact thickness of 7.5cm and cured for 6 days.

A thin and short fiber, for example short, hair-shaped glass fiber, is only effective during first hours after pouring concrete (its function is to reduce cracking while concrete is stiffening), but it will not increase concrete tensile strength. A normal-size fiber for European shotcrete (1 mm diameter, 45 mm length?steel or plastic) will increase concrete’s tensile strength.

The simplest shape is long opening with a pointed arch known in England as lancet. Lancet openings are often grouped, usually as a cluster of three or five. Lancet openings may be very narrow and steeply pointed. Lancet arches are typically defined as two-centered arches whose radii are larger than arch’s span.

Drop panel is used for resisting high shear at column, drop panels have thickness more than slab thickness and y are mostly used when span is large or shear load is high.
While column capital is upper head of column which is thickened to reduce punching shear on column, column capital also reduces clear span.

Because it is subject to additional internal stress caused by rmal expansion and contraction, this type of arch is considered to be statically indeterminate.

M35 is minimum required concrete for prestressed concrete.
Here 35 is in N/mm². So convert it into kg/cm².
N/mm² = 10 kg/cm².
So 35 N/mm² = 350 Kg/cm².

Just like you can see from many roof truss types pictures, Fan Truss comes with a very simple design and it?s made out of steel. In this particular situation, trusses form a fink roof truss. On top of that, main characteristic here is that top chords are split into smaller lengths, as this allows build to obtain purlin support. Also, you get a medium span with this type, around 10-15m, which is more than enough for most projects.

A reinforced concrete section where concrete resists compression and steel resists tension can be made into almost any shape and size for construction industry. FRP composites and Construction Parameters.

Slope defined as vertical rise (in inches) per foot of horizontal run. For example, A roof that rises 6 inches for every 12 inches of run is a ?six-in-twelve,? or 6:12 roof, with a pitch of ¼.