1_List the circumstances in which a singly reinforced
and doubly reinforced beam sections are used in a structure.
2_State Necessity of Reinforcement in R.C.C Structures.
Given that i=0.09; i*=0.0025; F(HC/FC )= 7.80; S(HC/FC) = 7.30,
discuss if there is an arbitrage opportunity. What would you do if
you are an arbitrageur?
Considering the actions that arbitrageurs are likely to take,
explain in detail what you expect to happen (movements) for IRP
condition to hold again?
(Note: interest rates are annual and forward rate is for a
12-month contract).
Design a concrete mix for reinforced concrete beams of a
structure. The structure is located in a locality wherein water has
excess of chlorides in it. Required average compressive strength of
concrete has been determined to be 4700 psi. Beams have
cross-section of 9 in. x 21 in. reinforced with 4 # 6 bars.
Reinforcement has a concrete cover of 1.25 in. and there is a clear
space of 1.0 in. between form surface and steel bars. Fine
aggregate has...
Design a rectangular reinforced concrete beam to resist a total
design moment Mu=400 ft.kips (this includes the moment due to beam
weight). Architectural considerations require that the width (b) be
18 in. and the overall depth (h) be 26 in. Use f′c=4,000 psi and
fy=60,000 psi. Sketch your design.
Design a wall footing to support a 30cm − wide reinforced
concrete wall with a dead load DL =293 KN/m and a live load
LL = 218 KN/m. The bottom of the footing is to be 1. 2m below
the
final grade, the soil weighs 16 KN m3 ⁄ , the allowable soil
pressure, qa = 192 KN m2 ⁄ , and there is no appreciable
sulfur
content in the soil. fy = 420MPa and fc′ = 21MPa, normal-
weight...
Determine the maximum allowable span of nominal 2x4
wall forms studs carrying a design load of 1000 psf. Stud spacing
is 16” on center. Use the allowable stresses for Douglas Fir from
Table 13-8 and 7 day load duration. Assume that studs are
continuous over 3 or more spans. Limit deflection to l/360 of span
length. Based on the maximum allowable span, check for crushing of
studs on double 2x4 wales. Conditions are dry.
Determine the maximum allowable spacing of joist used with
nominal 1-inch lumber decking if the design load is 200 psf. Assume
the decking is continuous over 3 or more spans and is hemlock-fir.
Limit deflection to I/360. Assume 1x12 Do not apply 7 day load
duration factor or reduction factor for wet conditions.