- Making bridges during construction
- Runs of channel (corner)
- Standard jumper
- Homemade run
- order of registration of the jumpers in the finished walls
Making window openings in a building being erected, as is known, a necessary component of the construction works carried out during the construction of residential buildings.In preparation of the opening under the window it is assumed that the quality of its performance largely depends on the operational reliability of the entire building under construction in general.
Particularly noteworthy cases where masonry brick window aperture is made in the order of completion bearing walls, partial dismantling of which can be made only after a whole range of preparatory activities.
Making bridges during construction
basis for the formation of the opening in the brick wall is a known structural element (called a run), based on their ends lined with brick piers.For manufacturing runs can be used such w
- industrial concrete bridge (which is allowed and independent of their production);
- metal sill of a particular size;
- standard metal corners.
material selection runs (jumper) is made in view of the anticipated loads on the part of the structure, as well as for reasons of convenience, to work with them.When selecting their linear dimensions should be based on the requirements of SNIP, a predetermined amount of overlapping masonry within 150-200 mm on each side.
Therefore, when window opening width of 1200 mm you will need to cook or buy a run length of the order of 1500-1600 mm.
Runs of channel (corner)
scheme of the window opening in the brick bearing walls
One of the most common types of connectors, which are issued by the window openings in masonry, are metal sill (corners) of the appropriate size.When installing partitions in the most convenient size of a half-brick sill - 120 (140) mm, and at full brick walls are best suited size 240 (270) mm.
When used as a jumper metal corner you may encounter certain limitations on its size, associated with the load capacity of the structure.Even a fairly strong areas with sizes of 100 × 100 mm (75 × 100 mm) can be used only in cases where the masonry above the window opening and masonry walls securely connected, and the length of the run is small.
During installation area must be placed in such a way that two of its faces have been exposed to stack on top of him material.The length of the jumper from the corner can not be more than 1.5 meters, as larger span can bend and masonry above it - sag.
When making the window opening with the help of concrete bridges, you will encounter two possible options:
- use of ready industrial products;
- improvised bridges, flooded the place of their installation.
In the case of the finished product should be a close with the help of the existing doorway in the wall, and then continue laying the walls throughout its length.
masonry above the opening
Unfortunately, buy ready-made concrete bridge right size it is not always possible, most often the case with non-standard dimensions of the window.
On the other hand, the weight of the finished bridge often exceed 100 kg;so without the involvement of a special lifting equipment you are unlikely to raise it to the desired height.Most artists do not want to mess with the lease of lifting mechanisms, jumpers prefer the finished product manufactured in-house.
When placing custom size window openings manufacture jumper (her fill) made on location.This will require to perform the following typical operations:
- primarily masonry surfaces at the sides of the window opening are cleaned from the remnants of the solution;
- then made a thorough priming them;
- in the final stages of work on the location of the jumper is mounted formwork.
Upon completion of these procedures in the formwork is filled with a thin layer of concrete mixture prepared in advance, and then to immediately laid reinforcing mesh.You can then continue to fill jumper, followed by placement in the thickness of the concrete reinforcing another tab.When disassembling the formwork should be noted that to dismantle the bottom part of it is not always possible.
At registration of window openings, lined with bricks (called facing brickwork) in order to preserve its ornamental benefits allowed to use U-sections (wide metal parts).In this case, the visible part of the run will be located only on the inner side of the bearing wall.
Masonry figure window opening
Thus on its front surface should not be in any way significant traces of the jumpers.
order of registration of the jumpers in the finished walls
Strengthening the opening in the bearing wall
Before starting the design of the opening in the brick wall of the carrier will be required to produce a series of preparatory operations:
- First of all he will need to run preparedukaznoy one of the above methods (excluding the option of independent pouring concrete bridge).
- Next, will punch a hole in a brick wall, pre-installing the ceiling by metal columns-Backup.Columns must pierce the ceiling with a palpable tension created by pre-arrangement with wooden struts.
- After taking all necessary precautionary measures you can start building the future contours of the window opening, starting with the punching plot jumper.To carry out this operation should be with great caution, closely tracking the status of nearby sections of the wall masonry.
Production of the window opening in the finished wall
After the formation of the desired size of the cavity in her factory-fitted jumper type you choose, which is then fixed in the opening by a concrete solution.Immediately after drying the solution with a portion under the ceiling plaster is removed (finish coating) and then disassembles the masonry to form holes for future window.Disassembly should be done from the top down;while its lower boundary should be placed 10-15 cm below the required level for the size of the window.
Gain opening channels higher
At the final stage of work is simply inserted into the window opening.
Video Watch as Facing masonry is made of the window opening: