Stress in the ground. Compression and swelling Effective Stress in the ground Foundations Groundwater Pore water pressure Reactive soil Shear strength Slope Stability Detail. Consolidation Traffic Control Signal Manual 2. ADA Standards 3. Design of the Road US Army 4. Geometric Design and Structure 5. Guide Sign Design Manual 6. Trip Generation Traffic Impact 7. Ramp Meter Design Manual 8.
Safety and Traffic Design. Sight Distance on Vertical Traffic Services Concrete Pavement Geometric Design Fundamentals of Traffic Flow Level of Service Highways Paving and Surfacing Signal Design Manual. Superelevation Highway Safety Manual. Sediment and Erosion Control 2. Bernoulli Equation 3. Culvert Design 4. Hydrology Manual 5. A psf B The design sight distance on the curve is ft. Determine the minimum length of the curve to meet the sign distance requirement. A The length of middle ordinate M is 8.
When mixed separately, lbs of coarse aggregates are capable of fitting in a 3ft3 container and lbs of fine aggregates are capable of fitting in a 2ft3 container. Determine the bulk density of the concrete mixture with a ratio.
A kips-ft B kips-ft C The force applied at the mid-span and is equal to 20 Kips. The inclined support is a roller support. Find the bending moment in the structure? A 50 kips-ft B 40 kips-ft C 0. Who should be the first person for inspection of the nailing system?
A Trained person B Site supervisor C Competent person D anyone in the site with engineering degree 38 Find the zone of influence for the following excavation where there is no soldier piles. Neglect the brick made counterforts. The tricky part is the height of the level does not effect on the elevation measurements, so there is no relation between the heights of level for different readings.
ASCE , 4. Elastic setlemnt expected which is not the question, however it is usually less than consulidation. For each layer, we need to calculate the unit weight. Therefore, we need to calculate voids ratio of each layer first. Use the appropriate equation. According to The resistance factors table a factor of 0. If it does then the maximum spacing will be used in place of the required spacing. The area of the shear reinforcing steel Av will be 2 times the area of a 3 bar since shear reinforcement passes through the cross section twice.
It is inclined. Bending crack is vertical and shear-flexure cracks have the inclined to vertical pattern. Equations for moment for beams can be found in AISC table First determine the effective length of the column and the radius of gyration for our member.
Find the appropriate radius of gyration. Calculate the slenderness ratio as a function of the effective length and the radius of gyration using appropriate equation. If we interpolate between a slenderness ratio of 94 and 95 on this table we can approximate the available critical stress to be The channel direction is perpendicular to a road where twin, side-by- side in-diameter corrugated metal pipe CMP culverts take the water under the roadway. Let point 1 be upstream of the contraction, and point 2 downstream.
This is not a beam, so there is not a bending moment. This is a truss with axial forces. Because the soil has a medium toughness and a very slow dilatancy, it contains more clay than silt. Therefore, 2. In general this is a truss and technically there is not bending moment in whole structure. But the members may get the flexure if the forces are not applied on the joints. In this case, there is uniform force on the 2 members of the truss. So each member individually will have bending moment.
If all reactions of a structure passes through one point then we cannot write the equation of equilibrium and we will lose one equation. So, this is the instable structure: Then before any actions occures in this structure the structure will fail and thus there is no bending moment in this structure. That being known answers C and D are eliminated. To determine the relative compaction we must determine the dry unit weight of the fill sample. Then we can compare it to the maximum dry unit weight.
Thus the distribution of bending moment in both direction needs reinforcement for negative and positive bending moment in both directions. A Trained person B Site supervisor C Competent person D anyone in the site with engineering degree The Answers is A The competent person is not necessarily have sufficient knowledge about the nailing.
For all excavations a trained person should be the first who enter. An envelope starting at a point two feet below the lowest point of Public structure continuing upwards at a forty five 45 degree angle from the horizontal, up to the horizontal projection of the outside limits of the adjacent underground structure or excavation, projected at grade level. And the horizontal line shows the reference point for it. The number on stake shows the required cut below the horizontal line.
So, the final elevation will be equal to 1. How much does labor cost for this project? Most nearly, how much will it cost to reduce the project completion time by four days?
Tires are an additional 21, with the estimated life time of hours. No variable material on the scaffolding will be stored. The underground water level is 2 m below the ground. There are two deposits of sandy soil at the site.
The first deposit of soil has a depth of 3 m, and a total unit weight above the water level of The second deposit of soil has a saturated unit weight of Determine the effective vertical soil pressure at point A. Another footing with the same size is on top of the soil. Which one shows more bearing capacity?
A No changes in bearing stress because the area is important B Buried one has more bearing stress C Surface one has more bearing stress D It depends on the soil parameters. The average effective vertical stress in the clay at the depth of 5. Determine the total stress at the depth of 5. A 54 B 84 C 79 D 30 11 Determine the lateral force per unit length of wall on the frictionless retaining wall, as shown in the figure below. The soil behind of the wall is clean sand with a saturated unit weight of Groundwater level is at the surface of the ground.
Assume that the effective stress at point A is kPa, determine the value of H2. Assume that the surcharge is 40kPa acting at the top of soil as shown in the diagram. If the effective pressure at point A is kPa. Determine the water content of this soil.
If the maximum permissible bending stress is 24, psi. Determine the minimum section modulus for the supposed beam. The shear support from the concrete is 57 kips. The beam cross section is 18 in by 28 in. The depth of the steel is 25 in. Determine the required spacing for the shear reinforcement at the support. The applied dead load is 7 kips. Neglect self-weight. The column length is 12 ft tall.
The column is not braced along the length. Determine the effective length of the column. Using the 1. If the Plastic section modulus is given equal to 55 in3 for the assumed section, find the maximum stress in the section. The beam made of steel with 50 KSI strength. The total height of the column is 30 ft.
The length of all beams is 35 ft. Assume Fy and Fu are 50 ksi and 65 ksi respectively. Assume there is no reduction in stiffness for inelastic buckling and connections are pinned. Assume sidesway is not prevented. Determine the effective length factor for the column top half of the column.
Using the Thiessen polygon method, the portions of the watershed associated with gages A, B, and C are , , and acres, respectively. For a particular storm, it is determined that the excess rainfall for these 3 portions of the watershed is 0. What is the volume of runoff from this watershed for this storm? Which of the following describes the culvert flow under these conditions?
A Inlet control, inlet is not submerged, critical flow at the inlet B Inlet control, inlet is submerged with orifice flow control C Outlet control, inlet is submerged D Outlet control, inlet is not submerged 22 Runoff from a 3-acre site is to be drained by a channel. The time of concentration for this site is 40 minutes. Rainfall quantities to be used for design are 0. For what discharge should this channel be designed?
The diameters are given. Determine the ratio of velocities in the branches. Assume the friction factor for all the lines to be the same. The two pipes have the same friction factor f and diameter, but pipe 1 is twice as long as pipe 2. What fraction of the discharge between the start and end points flows through pipe 1? What is the elevation of the PVT? Size Percent Passing What is the total unit weight of the compacted soil? Determine the required average compressive strength for a plant where the standard deviation is unknown given the equations.
Which point shows the yield stress? If the soil fails under a force of , lb, and the factor of safety considered as 3, find the allowable stress of soil. A smooth drum roller will be used to compact the soil in 4-inch-thick lifts while the width is 32 ft. The water must be added to the stationing length of ft to obtain the required moisture content for compaction.
How many gallons per yard must be added to meet the requirements? The slab supported by edge beam in two sides and there is no edge beam at the other sides. Swell and shrinkage factors for the soil are given equal to 0. The final volume of the compacted earth is most nearly. A B 65 C 88 D 40 For the following picture which shows a ditch checks for erosion control, which answer is the best description of both ditches? Short Cut There is no need to calculate anything in this problem.
Task 5 is the finishing task of this project and therefore, must be on the critical path. All tasks that are on critical path have always zero floats. Therefore, A is the correct answer.
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