Civil Engineers' Network

List of Skyscrapers

2012-01-26T11:57:00.000-08:00

Visit the updated list of 115 skyscrapers around the world.
http://civilengineer.webinfolist.com/skyscraper-list.htm
This list has information about the skyscrpers rank, height, stories, location, year etc.

Slope & deflection calculator is now revised

2012-01-23T13:41:00.000-08:00

The slope & deflection calculator for beam is now revised at
http://civilengineer.webinfolist.com/str/sdcalc.htm
It gives you slope & deflection at any point as well as the maximum values and their locations.

New 2012 conferences in civil engineering

2012-01-05T01:33:00.000-08:00

New Civil Engineering conferences for 2012 are now posted at
http://civilengineer.webinfolist.com/conferences.htm
These conferences provide an opportunity to share information and exchange ideas in the fields of structural, materials, geotechnical, transportation, water resources and environmental engineering.

Revised version of bending moment calculator

2012-01-05T01:10:00.000-08:00

Bending moment calculator is now revised at
http://civilengineer.webinfolist.com/mech/bmcalc.htm
with this new version you can calculate shear force and bending moment as well as maximum value of bending moment and the point of maximum bending moment for cantilever and simply supported beams subjected to point load, uniform load, varying load or moments.

Deflection & Slope calculator

2011-10-31T13:48:00.000-07:00

Now the calculator for deflection and slope for different loading conditions of cantilever and simply supported beams is available at the following link
http://civilengineer.webinfolist.com/str/sdcalc.htm

Moment of inertia calculator is now revised

2011-10-31T13:45:00.000-07:00

Revised version of Moment of inertia calculator is now posted at

http://civilengineer.webinfolist.com/str/micalc.htm

With this calculator now you can calculate all the geometric properties like area,

centroid, moment of inertia, radius of gyration and section modulus of different sections like T, angle, I, circular, rectangular etc.

Revised version of reinforced concrete calculator

2011-10-31T13:40:00.000-07:00

Revised version of Reinforced concrete calculator is now posted at
http://civilengineer.webinfolist.com/design/beamanalysis.htm (FPS/North American Units)
http://civilengineer.webinfolist.com/design/beamanalysism.htm (SI/Metric Units)

With this calculator now you can calculate the Tensile, compressive and bending moment strengths of rectangular reinforced concrete beam. It will also calculate the strain in the layers of tension and compression rebar which helps in deciding whether steel has yielded or not.

Problem Solver for Civil Engineers

2011-08-05T09:39:00.000-07:00

Now Civil Engineers will get

Lots of solved problems explained with each step of calculation at

http://civilengineer.webinfolist.com/problemsolver.htm

These problems will help in understanding important concepts

requird to become a good civil engineer.

2011 conferences in civil engineering

2011-02-01T11:49:00.000-08:00

Please visit the updated page http://civilengineer.webinfolist.com/conferences.htm for latest information about civil engineering conferences to be held at different placed in the world in year 2011.

RC beam calculator

2010-11-23T14:49:00.000-08:00

A simple calculator for Reinforced concrete beam is available at
http://civilengineer.webinfolist.com/design/beamanalysis.htm
Here you can easily calculate the strength of rectangular doubly reinforced concrete beam
Please visit the following link for calculating the strength of RC beam.
http://civilengineer.webinfolist.com/design/beamanalysis.htm

Soil mechanics

2010-07-07T03:08:00.000-07:00

A new page on soil mechanics is added at the following link
http://civilengineer.webinfolist.com/geo/soilmech.htm

Reinforced concrete

2010-07-07T03:06:00.000-07:00

Get updated web resources in reinforced concrete at
http://civilengineer.webinfolist.com/design/rcc.htm

Quiz in Civil Engineering subjects

2010-01-26T01:34:00.000-08:00

Please visit an excellent source for quiz in different subject areas of civil engineering available at http://civilengineer.webinfolist.com/cequiz.htm

It includes Statics, Structural Analysis, Water resources, geotechnical, surveying etc.

Bending moment calculator

2009-09-28T22:00:00.000-07:00

Bending moment plays an important role in designing different structural components.
An online bending moment calculator is now available at http://civilengineer.webinfolist.com/mech/bmcalc.htm

Resultant of Coplanar Concurrent Forces

2008-11-01T22:45:00.000-07:00

Coplanar concurrent forces are those which are lying in the same plane and acting at the same point. The forces can be represnted in scalar form (magnitude and angle) or in a cartesian form(components along x, y, z axes alongwith unit vectors).

Scalar Form
To find the resultant of the system of coplanar concurrent forces the following steps should be followed.

1. Resolve all the forces into their rectangular components along x-axis and y-axis.

Note: Component of a force F along x-axis is F cos θ, (where θ is the angle between the force and the positive x-axis), and the component of a force F along y-axis is F sin θ.

2. Take the algebraic sum of the components along x-axis and y-axis

Σ Fx and Σ Fy.

3. Resultant of the force system will be calculated as

Magnitude, R= sqrt{(Fx)(Fx)+(Fy)(Fy)}

Direction, Angle α =Tan(-1){(Σ Fy/Σ Fx )}

Cartesian form
The forces are commonly resprented in the cartesian form with their x, y and z components as;

F=fx i + fy j + fz k

where fx, fy and fz are the components of the force along x, y and z axis and i, j, k are the unit vectors in the direction of x, y,z axis respectively, e.g., F=2 i + 3 j + 4 k

To find the resultant in the cartesian form, follow the following steps.

1. Resultant R=(Σ fx) i + (Σ fy) j + (Σ fz) k
where Σ fx is the algebraic sum of the x-components of all the forces
Σ fy is the algebraic sum of the y-components of all the forces
Σ fz is the algebraic sum of the z-components of all the forces

2. The magnitude and direction of the resultant will be calculatd in the normal way as for any vector.

For more on Engineering Mechanics visit http://civilengineer.webinfolist.com/mechanics.htm
or refer to Engineering Mechanics - Statics (11th Edition) by Hibbeler.

Environmental Challenges for Civil Engineers

2008-10-14T00:01:00.000-07:00

Global warming is an important issue with which all engineers and scientist are concerned worldwide. The earth's surface temperature is increasing continuously due to the increase in greenhouse gas concentrations. This is mainly due to human activities as a result of industrial revolution in the last six decades.

The increasing global temperature has some serious effects as it it is expected to cause a rise in sea level (which may remove some areas from the world map), extreme weather conditions, significant changes in rainfall (leading to floods or droughts), increase in desertification etc. It is also expected to effect agricultural output, melting of glaciers (will cause an increase in sea level), extinction of species and increase in diseases.

Kyoto protocol is an attempt to reduce global warming and most governments have signed it but it is still under political manipulations and debate. United states being the largest emittor of greenhouse gases has not ratified Kyoto protocol!!! Intergovernmental Panel on Climate Change is associated with the task of evaluation of risk due to climate change casued by human beings.

Environmental division of Civil Engineering is also very much involved in the process of finding out the solution to global warming. Marching ahead for a better, comfortable and peaceful world for all irrespective of cast, creed or races.
Comments and suggestions are welcome

Precautions during hot-weather concreting

2008-08-22T23:11:00.000-07:00

Precautions for hot-weather concreting should be planned when the temperature is expected to reach 30 to 35°C or more. These precautions may have one or more of the following applications:

cooling of concrete ingredients
dampening of formwork, reinforcement and subbase
erection of wind breaks and sunshades to protect exposed concrete surfaces
cooling of containers, pipelines, chutes, etc during transportation of concrete
completion of transporting, placing and finishing of concrete as quickly as possible
use of set-retarding admixtures to control premature stiffening of the fresh mix
use of some chemicals on the exposed surface of concrete to limit evaporation
immediatly start curing after final finishing is complete
moist curing to control concrete temperature
restricting the placement of concrete during night time when the temperatures are generally lower.

Effects of high temperature on concrete

2008-08-22T22:48:00.000-07:00

Concrete is essentially a mixture of cement, aggregate and water. Its qualities are greatly affected by temperature during mixing, placing and compacting.

High temperatures can have the following effects on concrete:

reduced setting times and early stiffening
increase in the rates of hardening
loss of 28 day strength
increase in tendency for plastic shrinkage
difficulties in the operations of placing and finishing
development of cold joints - a cold joint is formed when plastic concrete is placed against concrete that has set and started hardening.

Admixtures are added to control these effects of hot temperature.

worldwide job opportunities

2008-08-22T22:33:00.000-07:00

Jobnetwire provides a search engine for job opportunities for any job sector and location of the world.
It also provides some useful resources for resume building and interview preparations etc.

International Conference in Geomechanics

2008-08-15T03:45:00.000-07:00

The 12th IACMAG conferences in Geomechanics is scheduled to be held from 1 to 6th October 2008, at GOA (INDIA). Conference TOPICS and other related information is listed on the web site http://www.12iacmag.com/

for more information and registration Contact:
Dr. D. N. Singh
Professor, Dept. of Civil Engineering,
Geotechnical Engineering Division,
Indian Institute of Technology, BOMBAY POWAI,
MUMBAI- 400 076 (INDIA)
Ph: 91-22-2576 7340 (O) 2576 8340 (R)/2572 0644 (R--Direct) 2576 4317/47 (Lab) Mobile: 09820 758508 Fax: 91-22-2576 7302/ 2572 3480
E-mail: dns@civil.iitb.ac.in
http://www.civil.iitb.ac.in/~dns

see more conferences in civil engineering

Urgent Openings for Civil Engineers in Dubai

2008-08-11T00:56:00.000-07:00

Posted On : Khaleej Times 11 August 2008

URGENTLY REQUIRED BY A LEADING TURNKEY CONSTRUCTION COMPANY IN DUBAI
PROJECT MANAGER (7 Nos.)
Having Bachelor Degree in Civil Engineering with minimum 5 to 7 years experience. Candidate should have excellent skills in Managing projects.

OPERATION MANAGER/AREA MANAGER (3 Nos.)
Having Bachelor Degree in Civil Engineering with minimum 15 to 20 years experience. Candidate should have excellent skills in Managing projects.

SITE ENGINEER (15 Nos.)
Having Bachelor Degree in Civil Engineering with minimum 2-3 years of experience.

CIVIL FOREMAN (20 Nos.)
With minimum 2 years of experience.

SAFETY ENGINEER (5 Nos.)
With minimum 5 years of experience.

All Candidates should be willing to join immediately.
Good package is offered for the selected candidates.
Please Fax your C.V. to 04-3373365 or email to: hrd_roshancn@yahoo.com

Reference: Khaleej Times, 11 August 2008

Construction project schedule

2008-08-01T21:43:00.000-07:00

A project can be defined as a finite effort with specific start and finish dates and undertaken to bring about a beneficial product or service. Every project has a set of well defined activities that use resources to accomplish the project objectives and goals. Time, cost,scope and quality are traditional constraints associated with each project.

Project schedule plays an important role in the success of a project. It provides the essential means to plan and control the works. The project schedule should identify the priorities and most efficient way to accomplish a work. The schedule should be simple to follow and modified regularly to show the changing project scenario.

Construction projects are complex in nature therefore the project manager should have full understanding of the planning and scheduling techniques used on construction projects. The project schedule will be of particular importance for different parties regarding:

1- Determining the contractor’s estimate – Calculation of time and cost of general items/preliminaries (on–site overheads and head office costs) and the time required for alternative construction methods.
2- Preparing and monitoring a cash flow forecast for the employer or the contractor.
3- Monitoring and controlling the contractor’s progress of the work.
4- Estimating the money required for interim payments including preliminaries or general items.
5- Deciding the extension of time and the associated cost to be approved in case of delays and variations.

Reference:
Major Construction Works: Contractural and Financial Management by Keith Potts and Brendan Patchell

Jobs for Civil Engineers

2008-07-26T10:26:00.000-07:00

Civil Engineers Required for large Building and Highway Projects
(Posted On : 23 July 2008, Khaleej Times, leading UAE English daily Newspaper.)

"A Construction Company is seeking the following staff for immediate hire for work in Amman, Jordan on large scale projects:

1. PROJECT MANAGER for a Highway Project
Minimum university degree in Civil Engineering.
Minimum Fifteen (15) years experiences in Highway constructions projects, last (5) years as project manager with an International Contractor for project of USD 50M.
Excellent command of written and spoken English a must.
Related computer literature is required; AUTOCAD, Primavera, etc.
Experience with World Bank, USAID, International donor or related procedure required.

2. PROJECT MANAGER for a Commercial Buildings project:
Minimum university degree in Civil Engineering.
Minimum Fifteen (15) Years experiences in building constructions projects, last (5) years as project manager with an International Contractor for projects of USD 100M.
Excellent command of written and spoken English a must.
Related computer literature is required; AUTOCAD, Primavera, etc.

3. CONSTRUCTION MANAGERS
Minimum university degree in Civil Engineering
Minimum Fifteen (10-15) Years experiences in Highway or Buildings, last (5) years in same position in the GCC area or with an International Contractor on project $50 M +.
Excellent command of written and spoken English a must.
Related Computer literature is required; AUTOCAD, Primavera, etc.

4. SENIOR PLANNING ENGINEERS
Minimum university degree in Civil Engineering / Electro-Mechanical Engineering.
Must be fully versed in Primavera Software.
Minimum Fifteen (15) Years experiences with Highway, Infrastructure, buildings projects.
Last (5) years in the same position in GCC area or International Contractor.

5. OFFICE/ DESIGN ENGINEERS
Minimum university degree in Civil Engineering.
Minimum Eight (8-10) years experiences in, Highway design and infrastructure, buildings projects, shop drawing preparation, projects design review.
Minimum last (5) years in the same position in GCC area or with an International Contractor.
Related Computer Literature is required.

6. QUANTITY SURVEYORS
Minimum College or university degree in Civil Engineering or QS.
Minimum Fifteen (15) Years experiences in large infrastructure and Highway or buildings projects ($50 million plus).
Last (5) years in the same position with International Contractor.
Related Computer Literature is a must.

7. AutoCAD DRAFTSMAN
Minimum College degree.
Minimum ten (7-10) years experiences Highway and infrastructure project or high-rise buildings.
Last (4) years in the same position with International Contractor.

8. SENIOR PLANT & CONSTRUCTION EQUIPMENT MANAGER
Minimum university degree in Mechanical Engineering.
Minimum Fifteen (15) Years experiences in the field of management and supervision operations and maintenance of modern heavy construction machines including Caterpillar, Komatsu, Mercedes machines ranging from dumper trucks, to generators, to wheel loaders, bulldozers, excavators, pavers, rollers, crushing plants, asphalt batch plants, etc.
Minimum last (5) years in same position with an International Contractor.
Related Computer applications are required.
Good organization and office skills a must.

9. SR. MECHANICAL / ELECTRICAL / HYDRAULIC TECHNICIANS
Minimum certified training by approved Caterpillar, Komatsu or equivalent training center. Preferably a diploma as a certified heavy equipment mechanic.
Minimum ten (10) years experience with an International Contractor or heavy equipment service center in the same position.
Must have good English Language skills (speaking, reading, writing).
Must have good experience repairing (including engine overhaul) and servicing heavy construction equipment such as dozers, loaders, graders, excavators, rollers, pavers, dumper trucks, mobile cranes, lower cranes, generators. Preferably experience with Caterpillar, Komatsu, ABG, Mercedes, etc...

10. HEAVY EQUIPMENT OPERATORS:
a.BASE COURSE / ASPHALT SPREADING PAVER OPERATOR: min exp. 7 years highway works
b. DUMPTRUCK DRIVERS: Mercedes dump truck on road / off road min. experience 5 years.
c. WHEEL LOADER OPERATOR: CAT 950/966. minimum exp. 8 years
d. MOTOR GRADER OPERATOR: CAT 14 / 140 min. exp. 10 years highways
e. MOBILE CRANE OPERATOR: AT Grove 25-35 ton min exp. 10 years

11. PLANT OPERATORS:
a. Asphalt Batch Plant Operator/maintenance Technician: 120-250 tons/hr. Computerized. WIBAU or equivalent experience. Min. exp. 10 years.
b. Concrete Batch Plant Operator/Maintenance Technician: 100 m cu / hr Computerized. MARINI or equivalent experience. Min exp.10 years.
c. Aggregate Crusher Plant Operator/ Maintenance Technician: 100 m cu / hr. Cone and Impact Crushing for concrete, asphalt, base course aggregates. Experience with limestone and basalt is a plus. Kleeman, Parker or equivalent experience. Min exp. 10 years.

Please send your CV to:
Fax: 009626 5679583
Email: admin@masarunited.com
Attn: HR Manager "

Reference: Khaleej Times, 23 July 2008

Importance of Mechanics

2008-07-26T02:19:00.000-07:00

Mechanics is considered as the branch of science which deals with the state of rest or motion of bodies subjected to the action of forces.. It is further divided into three branches; rigid body mechanics, deformable-body mechanics and fluid mechanics. Rigid-body mechanics consists of two parts; statics and dynamics. Statics is concerned with equilibrium of bodies at rest or moving with constant velocity. Dynamics deals with bodies moving with acceleration. Most of the civil engineering structures are designed to be in equibrium which needs application of the principles of statics.

For more on Engineering Mechanics, refer to Engineering Mechanics - Statics (11th Edition) by Hibbeler.

Tallest Building

2008-07-23T09:23:00.000-07:00

Burj Dubai, UAE has become the tallest building of the world. Till April 2008 it completed 168 floors with a height of 2064 feet. It is still under construction and expected to reach 167 stories with 818 m (2313 ft) height in 2009.

Invitation to publish on cenetwork

2008-07-22T07:48:00.000-07:00

All the civil engineers are invited to share their thoughts in this blog. They can post their news, achievement, contributions or photos to the following address
skacivil.cenetwork@blogger.com

Introduction to Civil Engineering

2008-07-21T23:23:00.000-07:00

Civil engineering deals with the infrastructure required for basic necessities for the survival of mankind. It is supposed to be the oldest branch of engineering. It came into existence when human beings moved from their nomadic life to a protected sheltered place.
Civil engineering includes construction and maintenance of buildings, roads, bridges, railways, dams, canals etc.
Civil engineers play an important role in water distribution system and waste management.
The major areas of civil engineering can be classified as:
1. Structural Engineering
2. Hydraulic Engineering
3. Transportation
4. Construction Technology
5. Construction Management
6. Environmental Engineering