solve in peaper العنوانopective14Conduct stability analysis under extreme load condition for the design of a 50 m high concreteAssume that the bi dam behaves as a monolithic structure.Normal operating level: 45 mShear strength at foundation level: 5 MPaCompressive strength of concrete: 30 MPaCompressive strength of base material: 25 MPaFriction coefficient at foundation level: 0.75Specific weight of concrete: 24 kN/mSpecific gravity of water: 10 kN/mLevel of sediment accumulated in the reservoir: 5 mUnderwater specific gravity of the sediment accumulated in the reservoir: 11 kN/m (Q-32", K-(1-sinQy(1+sinQ)Earthquake coefficients: k 0.1, k. 0.05Ice force: 100 kN/mTail water is not present.It is envisaged that the lifting pressure will be reduced by 40% with the drainage structures to be constructed.0.00۱/۱ica favelD

Resultant hydrostatic force Fw due to waterWater pressure at the base of the dam (Pw) = 0.5 * γw *…

Answered: العنوان opective 14 Conduct stability…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Explain mobile boundary channel and rigid boundary channel. Also explain the formation of river bed based on shear stress? ------------Hydraulics-------------
A decorative concrete beam with a tubular section in the Figure MLM-1 shown below is simply supported on a span of 4.5 m. It has an outside diameter of 600 mm and an inside diameter of 300 mm. The unit weight of normal concrete mixture is 23.5 kN/m. 300 mm 600 mm Figure MLM-1 01. ( ) Compute the cracking moment of the beam using NSCP 2015 if f = 26.3 MPa. A. 63.2 kN - m B. 149.1 kN -m C. 71.34 kN -m D. 142.74 kN-m 02. ) In addition to its own weight, what concentrated load (in kN/m) at midspan can the beam safely carry before it cracks? A. 44.97 kN B. 121.33 kN C. 52.21 kN D. 115.68 kN 2 |Page PRPC 324 - MIDTERM EXAMINATION 03. ( ) If the 300 mm Ø hollow core were replaced by a 300 mm hollow square section, calculate the cracking moment. A. 40.3 kN – m B. 50.3 kN – m C. 60.3 kN – m D. 70.3 kN – m
HW2 A vertical concrete pipe of length L = 1.0 m, outside diameter dout = 15 cm, inside diameter din = 10 cm is compressed by an axial force F = 1.2 kN as shown in Figure 4.5. Assuming the modulus of elasticity of concrete to be E = 25 GPa and Poisson's ratio as v = 0.18, determine: (a) the shortening in the pipe length (b) the lateral strain «y (c) The increase in the outer and inner diameters Ddout and Ddin (d) The increase in the pipe wall thickness Dt (e) The percentage change in the volume of the tube (DV / V) 100. 1.2 KN 1.0 m 15 cm 10 cm
An ISHB 300 with plastic section modulus of 921.68×10³ mm³, flange width of 250 mm, the yield stress of 250 N/mm² is embedded in a pocket base to develop its strength with M 25 concrete in design of beam-column. What will be the required depth?
8. A center-point loading flexural test was performed on a concrete beam having a size of 100×100×500 mm. The beam is sitting on two supports located at 25 mm from each edge of beam. If the failure load was 17.5 kN, find the flexural strength.9. Considering the two tests of flexure, 3-points and 4-points, which one is more suitable for bending test and why?10. The compression strength test was performed on several samples of concrete molded in four types of molds cubes of 0.100 m×0.100 m ×0.100 m and of 0.150 m×0.150 m × 0.150 m, and cylinders having a cross section of d=100 mm by H=200 mm and d=150 mm by H=300 mm, respectively. If the weight of the samples and the loads at failure are as given in the Table. Both cubes and cylinder samples are cast from the same concrete batch under the same conditions and subjected to the same curing method.
What would be the average compressive strength of concrete if the load at failure of the 3 trials are 55, 100 kg, 54, 800 kg, and 55, 200 kg. Diameter of the sẫmple is 6". о 30.6 MPа о 31.6 MPа о 30.1 МPа о 31.1 MPа
A normal weight concrete with a specific gravity of 2.4 was used in the analysis of an 8 − m high trapezoidal gravity dam as shown below. The weight of the gravity dam resists the hydrostatic pressure due to two layers of fluid—a 3-m high glycerine layer (S. G.= 1.25) above another liquid layer, with a specific gravity of 12.0. Neglecting hydrostatic uplift, (a) what must be the height of the liquid layer such that the pressure distribution all throughout the base of the dam is constant? (b) What is the factor of safety against sliding if the coefficient of friction is μ = 0.65? (c) What is the factor of safety against overturning?
pre stressed conc. solution pls answer
Problem 8.26 WD = 20 kN/m wj. = 36 kN/m 4 m concrete cover is 40 mm 6 #29 450 450 mm 70 mm 800 mm 730 mm For each of the problems, you must perform the following Recalculate the effective depth assuming concrete cover of 40 mm, and use only your calculated effective depth to answer the questions. Shear strength of concrete must be calculated using both the simplified and detailed methods of ACI318 Table 22.5.5.1. -Verity the spacing between main reinforcing bars satisfies AC1318 minimum spacing requirements. -Demonstrate the calculation of the shear forces needed to answer the questions including a fully labelled shear force diagram. The diagram must show the location within the span where 1) no shear force is required (if any), 2) minimum shear force is required (if any). Sketch (manual sketches OK) the beam and show the main reinforcement and distribution of shear reinforcement along the span, including distances where each spacing applies.
Problem-C. A doubly reinforced rectangular concrete beam has a width of 30mm and an effective depth of 500 mm. The beam is reinforced with 2200 mm² of steel in tension and 628 mm² of steel in compression. The effective cover for compression steel is 50 mm. Assume that both tension and compression steel yield. The grades of concrete and steel used are M20 and Fe250, respectively. The stress block parameters (rounded off to first two decimal places) for concrete shall be as per IS 456 : 2000. Find the moment of resistance of the section.
8. A center-point loading flexural test was performed on a concrete beam having a size of100×100×500 mm. The beam is sitting on two supports located at 25 mm from each edge ofbeam. If the failure load was 17.5 kN, find the flexural strength.
28 day compressive strength = 30N/mm2 Standard deviation = 5N/mm2 Nominal cover to steel reinforcement: 25mm Maximum size of coarse aggregate: 20mm Aggregates of crushed type Degree of workability: Slump = 180mm Type of exposure: Moderate OPC (ordinary Portland cement) Sp. gr. of cement (Sc) = 3.15 Sp. gr. of coarse aggregate (Sca) = 2.6 (SSD) Sp. gr. of fine aggregate (sand) (Sfa) = 2.6 (SSD) Water absorption Coarse aggregate = 2% Surface moisture Fine aggregate = 1% Fine aggregate: conforming to grading zone 2 Probability Factor of 1.65 Based on the Data Given Above, Carry Out Concrete Mix Design Applying DOE Method and Procedure. Be Explicit in your Calculation. Note: Provide your own tables for the calculations, OBTAINED RESULTS WILL BE USED IN THE LAB FOR PRACTICALS

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