A rectangular beam with cross section b = 14 in., h=24 in. and d= 21.5 in, supports a total factored load of 3.9 kips/ft, including its self-weight. The beam is simply supported with a 22-ft span. It is reinforced with 5 #7 longitudinal bars, two of which are cut of between midspan and the support and three of which extend 10 in, past the centers of the supports. It also includes #3 stirrups. The concrete is normal-weight with compressive strength of 4 ksi, and steel conforms to ASTM A615 Gr. 60. a. Determine the actual (and theoretical) cut-off points for the two longitudinal bars.
b. Verify that the longitudinal reinforcement is sufficiently developed/anchored in the vicinity of the supports

Determine the time of the day and month of the year at which the peak sensible cooling load occurs for a top floor, north-eastern corner room of an office building in durban for the following conditions: floor area: 8 x 8 x 3 m east and north walls: 115 mm face brick (outside), 20 mm air space, 115 mm ordinary brick (inside) with 15 mm plaster roof construction: suspended plasterboard ceiling, 450 mm air space, 150 mm concrete, 75mm screed, waterproofing no heat transfer across other surfaces window area 3x 1,5 m high in north wall only. ordinary glass with venetian blinds. lights and occupants : from 07: 00 to 18: 00 average light density: 25 w/m2 number of occupants : 5 seated, light office work room temperature 24°c