A cantilever is an architectural component widely used in the building industries. A cantilever is a beam anchored at only one end. The beam carries the load to the support it is forced against by a moment and shear stress. Cantilever construction allows for overhanging structures without external bracing. Cantilevers can also be constructed with trusses and slabs. This is in contrast to a simply supported beam such as those found in a post and lintel system. A simply supported beam is supported at both ends with loads applied between the supports. Cantilevers are widely found in construction, notably in cantilever bridges and balconies. In cantilever bridges the cantilevers are usually built as pairs, with each cantilever used to support one end of a central section. A cantilever in a traditionally timber framed building is called a jetty or forebay. In the southern United States a historic barn type is the cantilever barn of log construction. Challenge Using the materials supplied, build a cantilever that will both protrude at least 10 inches from the edge of the table and hold the most weight as possible without shearing or fracturing when loaded. Essential Question How can you build a cantilever that protrudes from the table side that will support the most weight as well as measure at least 10 inches using only the given supplies? Supplies: Tools: 2 sheets of Ruler and Pencil Masking tape Various Weights (washers, pennies, etc.)
A cantilever is an architectural component widely used in the building industries. A cantilever is a beam anchored at only one end. The beam carries the load to the support it is forced against by a moment and shear stress. Cantilever construction allows for overhanging structures without external bracing. Cantilevers can also be constructed with trusses and slabs. This is in contrast to a simply supported beam such as those found in a post and lintel system. A simply supported beam is supported at both ends with loads applied between the supports. Cantilevers are widely found in construction, notably in cantilever bridges and balconies. In cantilever bridges the cantilevers are usually built as pairs, with each cantilever used to support one end of a central section. A cantilever in a traditionally timber framed building is called a jetty or forebay. In the southern United States a historic barn type is the cantilever barn of log construction. Challenge Using the materials supplied, build a cantilever that will both protrude at least 10 inches from the edge of the table and hold the most weight as possible without shearing or fracturing when loaded. Essential Question How can you build a cantilever that protrudes from the table side that will support the most weight as well as measure at least 10 inches using only the given supplies? Supplies: Tools: 2 sheets of Ruler and Pencil Masking tape Various Weights (washers, pennies, etc.)
Quick-Challenge-Samples.docx