Arched openings

Arched doorways – architectural solution, visually separating the room device without doors. Arched openings can escape from standard solutions used in model construction. Arch lancet may be or round shape. Openings with a circular contour are several basic types:

« classics » - The most common - arch arch has the correct radius;

« Nouveau » - Arc de Triomphe is made with the rise; « Romance » - Arc de Triomphe has a direct in the center of the rounded corners the right radius;

« elliptical » - Arc arches in the form of a right or wrong of the ellipse.

Arch can be installed as a « transoms » over a rectangular door or window opening.

Today, the market appeared ready arched openings, which shipped unassembled. The kit consists of two arcs, four pillars, arches and panels to racks and decorative locks. Decorative locks come in two forms: narrow rounded (As a rule, they are placed on top) and wide (they put down).

Standard modular arches made of MDF, suitable for wide openings 820-1550 mm and a height of 2330 mm with wall thickness of 50-185 mm. Set an arched transition may include a variety of decorative elements.

Arches can be monolithic concrete, brick, stucco and wood (oak, beech, pine). Concrete, brick and wooden archways reliable as outside, and indoor and plaster, plastic, arch of fiberboard, and particleboard shall be indoors only.

brick arches

Arched masonry is most commonly used in the so-called arched bridge. Arched ceiling advisable to do with the width of the opening of more than 2 m. Masonry arch itself is performed on the formwork. The basis of the formwork is cradling, cut to the contour of the arch. For a more accurate setting of the desired mark arches, as well as to facilitate removal after her hardening solution, rack mounted on wedges. For masonry arches is better to apply radial brick whose one end is wider and the other narrower. In this case, all the joints will have the same thickness. When laying out the usual brick joints will be canted form. Their thickness, as in the canted jumpers must be not more than 25 mm above and 5 mm below. Arch suit with different radius of curvature or varying the boom lift.

Wooden arch

In addition to the brick arches of capital can be used plank laminated arches. For the manufacture of such arches are used standardized glued blocks which are rigidly connected to the intermediate nodes. There are four designs plank arches without delay. This means that the thrust is transmitted to the support arches and additional puffs is required. Additional tightening needed where there is a large span width and, consequently, a large load on the supporting structures of the arch. Mount joints is best done using metal pads that are tightened together by bolts. Wooden items can be cut to required contour of the whole piece of wood on the pattern. Despite the seeming simplicity of this method has significant drawbacks. Wood that has direct fiber in the ground bends may split along the grain, which significantly affects the strength of manufactured item. The second method consists in softening wood by boiling or steaming items in metal molds.

The third method is adhered to a wooden block thin strips of wood in the positions corresponding to the convex portion of the element. Laminated sticking with subsequent machining allows give any wooden items, even the most intricate shapes. This method is quite laborious and time-consuming.

Modern technologies allow to get wood glued design (DCC) of any shape and length. They usually consist of two or more layers of lumber glued together so that the fibers of all the layers have been completely or approximately parallel. For the manufacture of DCC is most often used pine or spruce. Arches made of the elements of the DCC in their physical, mechanical and aesthetic qualities are not inferior, and in many ways superior to elements made of solid wood.

rounded corners arch

To round the corners of the opening is used ADI. First measured the thickness of the wall opening is determined by the radius of curvature, and made triangles in which one side has a concave shape. Then, a markup four triangles by drawing one or pattern. Chipboard or wood are cut triangles. After that are cut upper and lateral base bracket can be made of particleboard. They drilled holes for mounting to the face and the top corner of the opening. Finished parts are held together by nails or screws.

Ready bracket applied to the corner of the opening to mark the locations of holes for dowels. Drill holes are drilled, which clog the dowels or wooden plugs. After that brackets are attached with screws to the corners of the opening. The next step is – preparing strips of hardboard. She cut out the width of the wall opening, is applied to the concave side bracket and beat them with cloves. The upper part of the strip can be glued to the top of the opening with glue (PVA, bustilat, silicone sealant). Joints hardboard with wall openings and other gap filler usual construction.

The same result but with less effort can be achieved by making the brackets of polystyrene (35 or 25 grade).