CONSTRUCTION PROCESS OF JOIST SLAB and vault construction process and vault JOIST SLAB
This system constructive has the advantage of building slabs without Cimbrian that to support the arches into the joists entire surface is covered.
The joists are supported on walls or beams, bracing temporarily.
The items light are the arches resting on the joists, lighten the slab and serve formwork to concrete cast on site.
A mesh layer electro welded extends throughout the slab, on elements light to serve as reinforcement against temperature effects as compression layer.
The slab is integrated into the structure the walls and castles through specific channels (channels enclosure) that slip on the walls the perimeter.
On this particular school whole to fill the veins and form a compression layer on light elements (with a minimum thickness of three centimeters).
SLAB STEPS TO BUILD A ceiling joist and vault:
STEP 1: SHORING
braces are placed and support beams and leveling. and removed after 7 days of strained layer compression. poles are placed 4 "x 4" each 1.50m and beams of the same section each 1.60m to serve as provisional support to the joists.
STEP 2: PLACEMENT OF JOISTS
Place joists supported on the walls we have defined as Chargers our slab. joists manually placed boots on the walls. From wall boot placed the first joist . NOTE: It is recommended that compression strain layer beams with or chains enclosure. . The joists should be supported on the walls or at least elements loaders inches. For example if you have a clear free three meters more inches support on each wall, joist required must have 3.10m total length
STEP 3: ALIGN JOISTS
slabs are placed at the ends of the beams to obtain the correct separation of these also facilitate the subsequent placement of other slabs in alignment.
STEP 4: PUT Cove
caring slabs are placed firmly seated and close together. placement also done manually.
STEP 5: ATTACH WIRING
After the vaults have been in place, hoses are placed for electrical installation. These put on the walls and bovedillas.Donde holes of output required for an outbreak that vault is removed, the installation gets to the output of focus, put under an arch and then you reinforce it with small rods or mesh the hole and then just puts his cast concreto.Asi also carried out the hydraulic and necessary health.
STEP 6: PLACE MESH WELDED
short is presented and the required size and tied with wire annealing top rod of the joists and chains enclosure. NOTE: layers 3 to 4 cm wire mesh is recommended - welded 66x10x10 and 5 cm layers of welded wire mesh 66x8x8. The welded wire mesh on the floor is cut to size, later climbs the slab under construction and tied with wire annealed to the upper rod joists and chains enclosure.
STEP 7: STRAINED LAYER COMPRESSION
holes are plugged at the ends of the slabs and / or those that have been cropped to fit the clear. It perfectly wet joists and slabs and cast of 3 to 5 cm of concrete according to the mesh. It recommended to wet the arches to get greater adhesion with the compression layer. The concrete must have a minimum strength of F ° C = 200 kg/cm2. This step of the casting layer compression layer (concrete) should be performed in a single operation.
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