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Civil Engineering
Civil Engineering is a profession of designing and executing structural works that serve the general public, like houses, buildings, roads, etc. A Civil Engineer is an engineer trained in the design and construction of public works, such as bridges or dams, and other large facilities.
4,921 Questions
The future for static and dynamic engineering systems?
Statics deals with stationary objects(bridge). Dynamics deals with things in motion(cannonball).
A Civil Engineer deals with statics a lot more. They design buildings, bridges, roads, ect.. to NOT MOVE. In fact, in Civil Engineering if something moves it is Failure! That is how failure is defined.. movement.
A Mechanical Engineer deals with dynamics a lot more. They design machines, mechanisims, and things with moving parts. Like levers, pulleys, etc. They WANT things to move and design them accordingly.
The study of Statics (objects at rest) and Dynamics (objects in motion) is the basis for much of engineering. Along with a class called strength of materials, which deals with the mechanics of the materials used in the machine, building, etc.
When was the Forth Bridges Motel at South Queensferry closed and demolished?
it was around the end of 1993-94 i think xx
Can use stone dust as a filler material for bituminous concrete?
yes,we can use stone dust as a filler material for bituminous concrete because of its good bonding power with the bitumen.
What does a Screed Operator do?
A paving machine typically has a crew of three... the paver operator, who drives the paver, and the screed operators. The screed is what spreads and levels the asphalt, and the operators adjust the screed plates to ensure that the roadway is laid smooth, is the right thickness, and is adjusted for the road crown when applicable.
What are two common types of interstate interchanges?
- outside cloverleaf
- inside cloverleaf
- modified cloverleaf
- simple
- etc.
Why shearforce diagram and bending moment diagram become curve shape?
They don't always become a curved shape.
A SFD will only become a curved shape if you have a distributed load that is changing over time.
A BMD will only become a curved shape if the related shear force diagram is changing over time (not a flat line)
however because the SFD is the integral of the force applied and the BMD is the integral of the SFD, generally as you keep going to a higher order, you will start getting more curvy lines.
What is rolling margin for reinforced steel and how it is calculated?
Rolling margin is percentage of diviation in Sectional weight of Reinforcement steel allowable as per IS codes.Reinforcement steel is extruded from a mould which is made for a particular size e.g 8mm Dia.When the mould is brand new,the sectional weight of 8mm steel extruded through mould would exact as per IS standard of lower than that.i.e. 0.395Kg per Metre or lessor.Mould gets little bigger after certain period of time or after certain quantity of production is taken from a particular mould.Now same 8mm dia bars extruded from the same mould will have more weight per Metre say 0.400Kg per Metre insted of 0.395 as per IS. That is more mass per Metre/Length is required for same length.This diviation in weight is defined in IS codes for different dia which is as under :- 8mm to 10mm +_ 7% 12mm to 16mm+- 5%. 20mm and above+ -3%. Rolling Margin is calculated as under :- Total Weight of Bars (Dia wise ) / Total Running Metre of Bars = Actual Sectional Weight of bars. Compare sectional weight with Standard IS Weight. Weight as per IS Standard.= Dia X Dia / 162.
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By the rude bridge that arched the flood?
the poem is by Ralph waldo Emerson
BY the rude bridge that arched the flood,Their flag to April's breeze unfurled,Here once the embattled farmers stoodAnd fired the shot heard round the world.
How does science apply to bridge building?
When your building a bridge, you have to deal with questions like which materials should be used, how much force can be applied before the structure collapses, and how to construct a bridge with a greater ability to withstand wieght.
--Stew Pidasole
Fluid mechanics and their important questions?
important question means important questions of liquids and gases
What are the Important aspects of flow measurement and control in wastewater works?
Accurate flow measurement and projection allows engineers to design adequately sized facilities for the transportation (sewers and pumps), storage (basins, ponds, and tanks), and treatment (physical, biological and chemical) of wastwater. Controlling the flows to and from wastewater treatment facilities ensures that various processes work properly.
What are the difference between result obtained from ultrasonic test and triaxial test?
Triaxial testing will yield static strength properties of the material while ultrasonic measurements will give dynamic strength properties. The two can be related to each other by using various relationships between Young's Modulus, Bulk Modulus, Shear Modulus and Poisson's ratio. Static results should be lower than the dynamic results.
Finite element method in structural mechanics disadvantages?
hat's a very broad question, but usually the advantages of finite element analysis is they can get you toward a solution when you have a very complicated shape undergoing very complicated loads (temperature, vibration, earthquakes, yielding, spread of plasticity), or you are trying to look at a part in great detail (more common in mechanical engineering).
The disadvantage is the models are time-consuming to create, and verify, can be sensitive to boundary conditions (stress concentrations, local stresses) and sometimes the model needs to be refined repeatedly to give assurance that the results are reasonably accurate/valid.
What is the LAN bridges and internet switches?
Bridges and switches operate at the same OSI layer - layer 2. That means they switch packets based on the destination MAC address. A switch is sometimes called a multi-port bridge.
A bridge has 2 ports, whereas a switch can have many more than that.
It is typically a round rod with a cross crossed ribs around it. The ribs or deformations, are to allow additional surface area to be created to allow better bond and adhesion to the concrete.
How long can you store cement in a silo without using it?
If you mean the powder - you can store it indefinitely in a moisture-free environment. If you meant the mixed concrete - it starts to set in about an hour, so it's mixed 'as an when required'
it is a construction material that can be used as an exterior wall.it is composed of magnesium oxide,magnesium chloride.iron sulphate heptahydrate,foaming agent etc
solomon from addis ababa
Why is the maximum bending moment of a structural member as the point of zero shear?
Shear is the rate at which bending moment changes or shear is its derivative with respect to span. The integral, bending moment, goes through a maximum when shear goes from positive to negative or vice-versa.
Is it possible to mix the banana trunks fiber with concrete to form constructio n materials?
yes, because that banana fiber is less elongation than the other fiber, and it is light weight than to other,.
How is acoustics used in the design of concert halls?
Auditorium acoustics is a very specialized field at the intersection of acoustics and civil engineering.
The two most important properties are Reverberation Control, and the control of Early Reflections.
Wallace Clement Sabine was an US scientist acoustician who formulated much of the early foundation of acoustic measurements and of sound control in buildings.
Before his time, the design of auditoria was very much a hit and miss situation. Some, such as the 'Big Music Hall' in Vienna was a very successful design, and was copied many times round the world. And much music was composed for this famous theatre. Other less successful attempts merely became warehouses.
Chamber music is intended to be performed in small chambers (living rooms) of low reverberance, and the music for these will fail to be perfect in a larger space. Analogously, Cathedral music is intended to be heard in rooms with several seconds reverberation time, and indeed speech may be difficult, and has led to the style of speaking of a few words, followed by a pause to allow the echoes to decay.
Sufficient. Leo Beranek is worth a look up, as is Harris, Cyril M.
Floating column advantage in civil engineering?
yes,the Floating column is important for dividing the rooms and some portion can raise without whole area.
Why was arches and triangles used in making a bridge?
Introduction of Arches reduces the bending moment at cross sections due to presence of horizontal force at the support whenever bridge is loaded and thus requirement of cross section is lesser. When triangles are easy to propagate and can have tension/compression only if used as 2-point member in bridges (forces acts only the end of any member not in between), Due to absence of bending moment it also reduces the cross-section requirement. Therefore, if we introduce arches and triangles cross section requirements of each small member get reduced.
What is the difference and connection between soil mechanics and foundation engineering?
soil mechanics is the science dealing with soil to knowing ,type of soil , bearing capacity of the slackening weakness and strength of the soil and by soil mechanics can we give a recommendation to the designer
Foundation engineering is design of foundation of any projects ,building ,factories ,stores ....)the design of foundation type depended on the bearing capacity of the soil of the concerned site of the project.
