19 Questions
According to Section 5.7.6 of NSCP, the minimum clear spacing between parallel bars in a layer should be ______ but not less than 25 mm.
db
In spirally reinforced or tied reinforced compression members, clear distance between longitudinal bars shall be not less than 1.5 ______ nor 40 mm.
db
The spacing limits for reinforcement are specified in Section ______ of NSCP.
5.7.6
NSCP stands for National Structural Code of the Philippines. It is an important standard for ensuring the safety and integrity of ______.
structures
LRFD in steel structure design stands for Load and Resistance Factor ______.
Design
According to NSCP, the clear distance between layers of parallel reinforcement should not be less than ______ mm.
25
In the design of steel structures, LRFD was adopted in NSCP 2010. What is LRFD? It stands for Load and Resistance ______ Design
Factor
What do you call Na, Nv, Ca and Cv which are used to determine earthquake forces acting on structures? These are seismic coefficients used in the calculation of earthquake forces in NSCP ______
2010
What is Kd symbol in the computation of the wind velocity pressure? The symbol Kd represents the wind directionality factor for wind zones in NSCP ______
2010
In NSCP 2010, a section on wood or timber design was added for MGL. What is MGL? MGL stands for Maximum ______ Level
Gravity
What was the largest wind velocity being considered in NSCP 2010? The largest wind velocity considered in NSCP 2010 was ______ kph
to
In NSCP 2015, what is the largest wind velocity that must be used in the design of buildings in the country? (to the nearest hundred kph only) The largest wind velocity that must be used in the design of buildings in the country according to NSCP 2015 is ______ kph
to
Where s = standard deviation, MPa f cr = f c + 1.34s Eq. 1-4 OR f cr = f c + 2.33s – 3.5 Eq. 1-5 Required Average Strength Table 1.5 Estimated Compressive Strength of Concrete for Various Water-Cement Ratios Specified Compressive Strength, f cr MPa Required average compressive strength, f cr Mpa Less than 20 Mpa f c + ______
7.0
20 to 35 f c + ______
8.5
Over 35 f c + ______
10.0
Metal reinforcement in concrete shall be deformed, except that plain reinforcement be permitted for spiral or tendons; and reinforcement consisting of structural steel, steel pipe, or steel tubing.Reinforcing bars to be welded shall be indicated on the drawing and welding procedure to be used shall be specified.PNS reinforcing necessary to conform to welding procedures specified in “Structural Welding Code – Reinforcing Steel” (PNS/AWS D 1.4) of the American Welding Society and/or Welding of Reinforcing Bars (PNS / A5-1554) of the Philippines National Standard.PLAIN REINFORCEMENT Plain bars for spiral reinforcement shall conform to the specification listed in Section 5.3.5.3.1 of NSCP.For wire with specified yield strength fy exceeding 415 Mpa, fy shall be the stress corresponding to a strain of 0.35 percent if the yield strength specified in the design exceed 415 Mpa.PLAIN REINFORCEMENT Table 1.6 Weight, Area, and Perimeter of Individual Bars Bar No.Diameter Weight kg/m Area mm2 Perimeter mm in.
10.0
Plain bars for spiral reinforcement shall conform to the specification listed in Section 5.3.5.3.1 of ______.
NSCP
For wire with specified yield strength fy exceeding 415 Mpa, fy shall be the stress corresponding to a strain of 0.35 percent if the yield strength specified in the design exceed 415 Mpa.PLAIN REINFORCEMENT Table 1.6 Weight, Area, and Perimeter of Individual Bars Bar No.Diameter Weight kg/m Area mm2 Perimeter mm in.
NSCP
Reinforcing bars to be welded shall be indicated on the drawing and welding procedure to be used shall be specified. PNS reinforcing necessary to conform to welding procedures specified in “Structural Welding Code – Reinforcing Steel” (PNS/AWS D 1.4) of the American Welding Society and/or Welding of Reinforcing Bars (PNS / A5-1554) of the Philippines National Standard. PLAIN REINFORCEMENT Plain bars for spiral reinforcement shall conform to the specification listed in Section 5.3.5.3.1 of NSCP. For wire with specified yield strength fy exceeding 415 Mpa, fy shall be the stress corresponding to a strain of 0.35 percent if the yield strength specified in the design exceed 415 Mpa. PLAIN REINFORCEMENT Table 1.6 Weight, Area, and Perimeter of Individual Bars Bar No.Diameter Weight kg/m Area mm2 Perimeter mm in.
10.0
Test your knowledge on reinforcement grades and strength values with this quiz. Questions are based on ASTM standards and reference table 1.7.
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