The image displays a series of hand-drawn architectural or structural engineering plans and details for a "LOSA DE VIGUETA Y BOVEDILLA" (waffle slab or joist and block slab), a common construction method in Mexico City, Mexico. The drawings are rendered in pencil on a white sheet of paper, suggesting an initial design or study phase. The main subject is a plan view of a waffle slab, featuring parallel joists (viguetas) and hollow filler blocks (bovedillas) arranged within a rectangular frame defined by axes 'A', 'B', '1', and '2'. Key dimensions such as 6.75, 7.10, 5.60, and 8.40 units (likely meters) are noted on the plan. Below the main plan, several detailed sections and views illustrate the slab components. These include: * A perspective drawing of a joist, identified as "VIGUETA ALMA ABIERTA O PRETENSADA" (open web or prestressed joist), showing its steel reinforcement structure. * A section view of a "bovedilla" (filler block) with "PERFORACIONES PARA REDUCIR PESO Y PARA CAMARA DE AIRE" (perforations to reduce weight and for an air chamber). * A "DETALLE DE NERVADURA" (rib detail) showing "BLOCK DE UNICEL" (Styrofoam block) and "BLOCK DE TEPEZIL" (a type of lightweight concrete or clay block). * A "CORTE DE LOSA" (slab section) further illustrating the arrangement of joists and filler blocks, with notes on material specifications. Visible text provides crucial technical details: * Concrete strength: "CONCRETO f'c 200-250 kg/cm²". * Slab composition thickness: "LOSA DE COMPLECION 0.05-0.08-0.10". * Reinforcement: "REFUERZO DE ACERO CON MALLA ELECTROSOLDADA 10-10-5-5" (electro-welded mesh) and "NERVADURA ARMADA CON VARILLAS Ø 3/8" CON ANILLOS DE Ø 1/4" (ribs reinforced with 3/8-inch rebar and 1/4-inch stirrups). * A note states: "NOTA: SE 12 VIGUETA SE REQUEREN" (Note: 12 joists are required), though partially cropped. * The "CACETON" (coffer/filler block) can "SER VACIO O RELLENO BLOCK DE TEPESTE O CON UNICEL" (be empty or filled with Tepezil block or Unicel). The overall impression is that of a precise, technical document outlining the structural design of a floor slab, likely for a building project in the provided context of Mexico City. No people, specific time of day, weather, or emotions are depicted. in Mexico City, Mexico

Apr 20, 2026, 4:56 PM

Mexico City, Mexico

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The image displays a series of hand-drawn architectural or structural engineering plans and details for a "LOSA DE VIGUETA Y BOVEDILLA" (waffle slab or joist and block slab), a common construction method in Mexico City, Mexico. The drawings are rendered in pencil on a white sheet of paper, suggesting an initial design or study phase. The main subject is a plan view of a waffle slab, featuring parallel joists (viguetas) and hollow filler blocks (bovedillas) arranged within a rectangular frame defined by axes 'A', 'B', '1', and '2'. Key dimensions such as 6.75, 7.10, 5.60, and 8.40 units (likely meters) are noted on the plan. Below the main plan, several detailed sections and views illustrate the slab components. These include: * A perspective drawing of a joist, identified as "VIGUETA ALMA ABIERTA O PRETENSADA" (open web or prestressed joist), showing its steel reinforcement structure. * A section view of a "bovedilla" (filler block) with "PERFORACIONES PARA REDUCIR PESO Y PARA CAMARA DE AIRE" (perforations to reduce weight and for an air chamber). * A "DETALLE DE NERVADURA" (rib detail) showing "BLOCK DE UNICEL" (Styrofoam block) and "BLOCK DE TEPEZIL" (a type of lightweight concrete or clay block). * A "CORTE DE LOSA" (slab section) further illustrating the arrangement of joists and filler blocks, with notes on material specifications. Visible text provides crucial technical details: * Concrete strength: "CONCRETO f'c 200-250 kg/cm²". * Slab composition thickness: "LOSA DE COMPLECION 0.05-0.08-0.10". * Reinforcement: "REFUERZO DE ACERO CON MALLA ELECTROSOLDADA 10-10-5-5" (electro-welded mesh) and "NERVADURA ARMADA CON VARILLAS Ø 3/8" CON ANILLOS DE Ø 1/4" (ribs reinforced with 3/8-inch rebar and 1/4-inch stirrups). * A note states: "NOTA: SE 12 VIGUETA SE REQUEREN" (Note: 12 joists are required), though partially cropped. * The "CACETON" (coffer/filler block) can "SER VACIO O RELLENO BLOCK DE TEPESTE O CON UNICEL" (be empty or filled with Tepezil block or Unicel). The overall impression is that of a precise, technical document outlining the structural design of a floor slab, likely for a building project in the provided context of Mexico City. No people, specific time of day, weather, or emotions are depicted.

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