Elementary Surveying, Global Edition
Elementary Surveying, Global Edition
14th Edition
ISBN: 9781292060491
Author: Charles D. Ghilani, Paul Wolf
Publisher: PEARSON
bartleby

Concept explainers

Textbook Question
Book Icon
Chapter 4, Problem 4.1P

Define the following leveling terms:

  1. vertical control
  2. elevation, and
  3. vertical datum.

Expert Solution
Check Mark
To determine

i.

Definition of vertical control.

Explanation of Solution

Vertical control, also known as basic control or level control is the series of points with known elevation or the benchmarks established on entire area.

The data sheets for vertical control give the

(1) Set of reference points for the station.

(2) Observed or modeled gravity reading at the station, and

(3) Description of the station, its location and juxtaposing details between the stations.

Expert Solution
Check Mark
To determine

ii.

Definition of elevation.

Explanation of Solution

Elevation of a point is defined as the vertical distance that is measured along a vertical line with reference to some chosen vertical datum or object, it's also known as the height above the datum or orthometric height. If the elevation of any point is 450 ft, it means the point is 450 ft from the reference datum.

Expert Solution
Check Mark
To determine

iii.

Definition of Vertical datum.

Explanation of Solution

Any equipotential or level surface is where the elevations are compared, thereby, calculating every other distance from this surface. This is the surface that is subjectively appointed to an elevation of value zero and is known as reference datum as the points utilizing this datum have heights practically identical to this surface. For example, if the elevation of any point is 450 ft, it means the point is 450 ft distant from the reference datum or vertical datum.

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!
01:58
Students have asked these similar questions
The tension member shown in the figure below must resist a service dead load of 60 kips and a service live load of 45 kips. Does the member have enough strength? The steel is A588: Fy = 50 ksi, F₁ = 70 ksi; and the bolts are 11/8 inches in diameter. Assume that A = An PL 38 x 72 оо a. Use LRFD. Determine the design strength and the factored load. Make a conclusion about the member. (Express your answers to three significant figures.) +Pn Pu = = kips kips -Select- b. Use ASD. Determine the allowable strength and required strength. Make a conclusion about the member. (Express your answers to three significant figures.) Ft Ae = P₁ = -Select- kips kips
A single-angle tension member of A36 steel must resist a dead load of 49 kips and a live load of 84 kips. The length of the member is 18 feet, and it will be connected with a single line of 1-inch-diameter bolts, as shown in the figure below. There will be four or more bolts in this line. For the steel Fy = 36 ksi and F₁ = 58 ksi. Try the tension members given in the table below. Tension member 4, (in.) rz (in.) 7 L6 × 6 × 9.75 1.17 8 L 5 × 3 × 4.93 0.746 L 5 × 3 × 5 2.56 0.758 16 7 L5 × 3 × 3.31 0.644 16 Bolt line a. Select a single-angle tension member to resist the loads. Use LRFD. A) L 6 × 6 × B) L 5 × 3 × CL5×3× D) L 5 × 3 × -Select- 5 16 7 16 What is the required gross area? (Express your answer to three significant figures.) A₁ = in.² What is the required effective area? (Express your answer to three significant figures.) A = in.2 What is the minimum radius of gyration? (Express your answer to three significant figures.) "min = in. b. Select a single-angle tension member to…
An L6 × 4 × 5/8 tension member of A36 steel is connected to a gusset plate with 1-inch-diameter bolts, as shown in the figure below. It is subjected to the following service loads: dead load = 40 kips, live load = 100 kips, and wind load = 45 kips. Use the equation for U: U = 1 − For A36 steel: Fy = 36 ksi, F = 58 ksi. x l For L6 × 4×5/8: Ag = 5.86 in.², x = 1.03 in. 21/4" L6 × 4 × 5/8 11/2" 21/2" 11/2" a. Determine whether this member is adequate using LRFD. -Select- What is the design strength for LFRD? (Express your answer to three significant figures.) Φι Ρη - = kips Which AISC load combination controls? -Select- What is the controlling AISC load combination? (Express your answer to three significant figures.) Pu = kips b. Determine whether this member is adequate using ASD. -Select- What is the allowable strength for ASD? (Express your answer to three significant figures.) Pn Sit kips Which ASD load combination controls? -Select- What is the controlling ASD load combination?…

Additional Engineering Textbook Solutions

Find more solutions based on key concepts
To determine the number of items stored in an ArrayList object, you use this method. a. size b. capacity c. ite...

Starting Out with Java: From Control Structures through Objects (7th Edition) (What's New in Computer Science)

Diamond Pattern Write a program that displays the following pattern:

Starting Out with C++ from Control Structures to Objects (9th Edition)

Here are some instructions in English. Translate each of them into Vole machine language. a. LOAD register numb...

Computer Science: An Overview (13th Edition) (What's New in Computer Science)

Method intToFloat, which takes integer argument number and returns a float.

Java How to Program, Early Objects (11th Edition) (Deitel: How to Program)

Knowledge Booster
Background pattern image
Civil Engineering
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
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Architectural Drafting and Design (MindTap Course...
Civil Engineering
ISBN:9781285165738
Author:Alan Jefferis, David A. Madsen, David P. Madsen
Publisher:Cengage Learning
Text book image
Fundamentals Of Construction Estimating
Civil Engineering
ISBN:9781337399395
Author:Pratt, David J.
Publisher:Cengage,
Text book image
Construction Materials, Methods and Techniques (M...
Civil Engineering
ISBN:9781305086272
Author:William P. Spence, Eva Kultermann
Publisher:Cengage Learning
Text book image
Traffic and Highway Engineering
Civil Engineering
ISBN:9781305156241
Author:Garber, Nicholas J.
Publisher:Cengage Learning
Text book image
Engineering Fundamentals: An Introduction to Engi...
Civil Engineering
ISBN:9781305084766
Author:Saeed Moaveni
Publisher:Cengage Learning
Text book image
Residential Construction Academy: House Wiring (M...
Civil Engineering
ISBN:9781285852225
Author:Gregory W Fletcher
Publisher:Cengage Learning