Week 8

week eight logbook.!

!

moment of inertia: the shapes of beams as well as the materials of the beams can take different loads, and have different cross-sections. !

1. this is used for avoiding !

2.double stud usually goes through the whole structure. !

3.lintel is structural system, usually indicates that this wall is load bearing.!

! !

4.Noggings sometimes used for hanging the cabinet because the plastic is not strong enough to hold. ! how to determine which wall is load bearing?! usually the wall with cross bracing, lintel instead of head timber and double stud. however, there if there are more information, should according to that. !

!

!

Glossary:! window sash: A window sash is the framed part of the window which holds the sheets of glass in place. Most commonly, though, window sash refers to that part of the window which moves.!

!

deflection: the perpendicular distance a spanning member deviates from a true course under transverse loading, increasing with load and span and decreasing with an increase in the moment of inertia of the section or the modulus of elasticity of the material (Ching, 2012. p.7).!

!

moment of inertia: the sum of the product of each element of an area and the square of its distance from a coplanar axis of rotation. Moment of inertia is a geometric property that indicates how the crosssectional area of a structural member is distributed and does not reflect the intrinsic physical properties of a material. (Ching, 2012. p.8)! stress : the internal resistance or reaction of an elastic body to external forces applied to it, equal to the ratio of forces to area and expressed in units of forces per unit of cross-sectional area. Also called unit stress (Ching, 2012. p. 170)! shear force: An applied force producing or tending to produce shear in a body (Ching, 2012. p.171).!