Elementary Surveying, Global Edition
14th Edition
ISBN: 9781292060491
Author: Charles D. Ghilani, Paul Wolf
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 25, Problem 25.1P
To determine
Advantage of using a parabola in the vertical curve design
Expert Solution & Answer
Explanation of Solution
The vertical curve should provide smooth transitions between two set of grades. The ideal applied for vertical curves is parabola because it provides constant rate of change of grade for highways and railroads.
Conclusion:
The main advantage of using parabola because it provides smooth transition of curve.
Want to see more full solutions like this?
Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Students have asked these similar questions
Consider the two composite columns shown below and denoted as columns 1 and 2. These columns
have same gross area but differ in the geometries of the steel and concrete components. In particular,
the square steel hollow section in section A-A (for column 1) has thickness of t, while the square steel
hollow section in section B-B (for column 2) has thickness of 2t.
a
t
t
Column 1
steel
steel
concrete
concrete
B
B
Column 2
2t
2t
2t
2t
a
a
Section A-A
(for column 1)
a
Section B-B
(for column 2)
Assume that these columns are subjected to the same sustained load Po applied at time to and
maintained constant afterwards (see time axis below).
РА
Ро
0
time
Provide a qualitative description of the variation over time due to creep effects (do not consider
shrinkage effects in this question) of the following variables for each of the two columns considered
(i.e. columns 1 and 2):
1) deformations in the concrete
2) deformations in the steel
3) stresses in the concrete
4) stresses in the steel
For…
For the truss shown in Fig 2, determine the nodal displacement and member forces for all elements of the truss. Assume for each member A = 0.0015 m2 and E = 200 GPa
please show all working, relevant FBD's and use ID's indicated in the diagram.
Note: the truss has a vertical measurement of 2m and a horizontal mesurement of 2m
α
t
Αν
'A
B
'B
Column 1
Column 2
t
t
α
Section A-A
(for column 1)
steel
steel
concrete
concrete
2t
2t
2t
2t
a
Section B-B
(for column 2)
Chapter 25 Solutions
Elementary Surveying, Global Edition
Ch. 25 - Prob. 25.1PCh. 25 - What factors must be taken into account when...Ch. 25 - Prob. 25.3PCh. 25 - Prob. 25.4PCh. 25 - Prob. 25.5PCh. 25 - Prob. 25.6PCh. 25 - Prob. 25.7PCh. 25 - Prob. 25.8PCh. 25 - Prob. 25.9PCh. 25 - Prob. 25.10P
Ch. 25 - Prob. 25.11PCh. 25 - Prob. 25.12PCh. 25 - Prob. 25.13PCh. 25 - Prob. 25.14PCh. 25 - Prob. 25.15PCh. 25 - Prob. 25.16PCh. 25 - Prob. 25.17PCh. 25 - Prob. 25.18PCh. 25 - Prob. 25.19PCh. 25 - Prob. 25.20PCh. 25 - Prob. 25.22PCh. 25 - Prob. 25.23PCh. 25 - Prob. 25.24PCh. 25 - Prob. 25.25PCh. 25 - Prob. 25.26PCh. 25 - Prob. 25.27PCh. 25 - Prob. 25.28PCh. 25 - Prob. 25.29PCh. 25 - Prob. 25.30PCh. 25 - Prob. 25.31PCh. 25 - Prob. 25.32PCh. 25 - Prob. 25.33PCh. 25 - Prob. 25.34P
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.Similar questions
- (40 pts Q: By using the PERT technique to calculate the duration of activities, as shown in the table below, Draw an activity network for the following project by using AOA method and find: 1. The project's total duration and date of completion and CP (assume the project start date 1st of May 2024). 2. The overall variance of the project? 3. The probability of completing the project in 50 days? 4. The probability of completing the project in 5th of June 2024? 5. With a probability of 90%, what is the expected duration and date for completing the project? Activity Preceding activity Optimistic duration (day) A Most likely duration (day) Pessimistic duration (day) 6 12 18 B 5 7 C 15 8 10 D 12 A 7 10 19 E C 12 15 F 18 A 7 8 G 15 A 5 9 25 H B.D.E 15 17 25 I C 14 19 30 J F 6 8 10arrow_forward1. For the system shown below, calculate the power supplied to the pump if its efficiency is 82%. Methyl alcohol at 25°C is flowing at the rate of 50m³/hour. The suction line is a standard DN100 schedule 40 steel pipe, 15m long. The total length of DN50 schedule 40 steel pipe in the discharge line is 180m. Assume that the entrance from reservoir 1 is through a square-edged inlet and that the elbows are standard. The valve is a fully open globe valve. 12m Discharge line DN 50 schedule 40 steel Pump Suction line Fully open globe valve DN 100 schedule 40 steel Flow Standard elbows (2)arrow_forwardDetermine rotations at all the nodes of the beam and reactions at the supports using stiffness method. Assume support 1 and 3 are roller and support 2 is pinned, L1=1.25m, L2=3.75m and w=60kN/m. Please show all working and FBD's where relevant.arrow_forward
- Draw the BMD of the beam on the compression side showing the salient values. What are the maximum bending moments of the beam? Draw the deflected shape of the beam. Assume support 1 and 3 are roller and support 2 is pinned, L1=1.25m, L2=3.75m and w=60kN/m.arrow_forwardSize a flash and floc tank: Provide a sketch with dimensions and calculations Provide for vertical mixers Size the mixer and motor Flow Rate 33 MGD Peaking Factor 1.5 Use VDH Regs (Online) Low Temp 40 degrees High Temp = 70 degrees Redundant Tanksarrow_forwardI do not know how to solve this questionarrow_forward
- I don't know how to solve this questionarrow_forwardA national pricing service says the National price is $12.35 per unit. The adjusted price adjustment for Los Angeles is 1.15. The price adjustment for Tulsa is 0.94. What is the expected price difference between Tulsa and Los Angeles? c.$2.98 b.$2.59 d.$0.00 a.$0.21arrow_forwardPROBLEM: Design the transversely reinforced concrete deck slab shown in the cross-sectional detail below. 8" REINFORCED CONCRETE SLAB 1/4" PER FT. T 3-3% 8'-0" 8'-0" 4'-0" GIVEN: Bridge to carry two traffic lanes. Concrete strength =4.5 ksi. Grade 60 reinforcement f, = 60 ksi. Account for 25 psf future wearing surface. Assume stringers are W36 x 150. Deck has a 0.5 in integrated wearing surface.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Structural Analysis (10th Edition)Civil EngineeringISBN:9780134610672Author:Russell C. HibbelerPublisher:PEARSON
Principles of Foundation Engineering (MindTap Cou...Civil EngineeringISBN:9781337705028Author:Braja M. Das, Nagaratnam SivakuganPublisher:Cengage Learning
Fundamentals of Structural AnalysisCivil EngineeringISBN:9780073398006Author:Kenneth M. Leet Emeritus, Chia-Ming Uang, Joel LanningPublisher:McGraw-Hill Education
Traffic and Highway EngineeringCivil EngineeringISBN:9781305156241Author:Garber, Nicholas J.Publisher:Cengage Learning
Structural Analysis (10th Edition)
Civil Engineering
ISBN:9780134610672
Author:Russell C. Hibbeler
Publisher:PEARSON
Principles of Foundation Engineering (MindTap Cou...
Civil Engineering
ISBN:9781337705028
Author:Braja M. Das, Nagaratnam Sivakugan
Publisher:Cengage Learning
Fundamentals of Structural Analysis
Civil Engineering
ISBN:9780073398006
Author:Kenneth M. Leet Emeritus, Chia-Ming Uang, Joel Lanning
Publisher:McGraw-Hill Education
Traffic and Highway Engineering
Civil Engineering
ISBN:9781305156241
Author:Garber, Nicholas J.
Publisher:Cengage Learning