Civil Engineering

moments are defined as r x f. if you have member [x,y,z] and force [u,v,w] being applied to the end of it you take the cross product, [w*y-v*z,U*z-w*x,v*x-u*y]. if the member and force are perpendicular just multiply them and if it creates a clockwise rotation it is negative.

An aqueduct was a water pipe and the Romans used ceramic for the pipes. The ceramic kilns of the tenth legion have been found in present day Israel along with their aqueduct building equipment. Do not be mislead by the external supports of the water pipe. They were at times arches in more than one tier or layer, and they were generally made of stone and concrete. However, they were only supports for the water pipe, no matter how striking they may appear. Remember too, that most Roman aqueducts were underground and they were constructed of ceramic piping.

Construction joints should be provided in slabs and beams at locations where it is necessary to stop pouring concrete temporarily and resume later. These joints are typically located at points of minimum shear and bending moment to ensure the structural integrity of the slab or beam. They should be planned keeping in mind the structural design and construction sequence to avoid any stress concentrations or discontinuities. Additionally, joints should be properly sealed and reinforced to ensure durability and prevent any further movement or cracking.

The design life of steel structures can vary depending on factors such as the quality of material used, level of maintenance, and exposure to environmental conditions. Generally, steel structures are designed to have a service life of around 50-100 years. However, with proper maintenance and periodic inspections, the lifespan can be extended beyond this range.

Assuming the 10mm bars are arranged in a perfect square pattern, the number of bars at 10mm spacing in 1 square meter would be 1000 bars. This is calculated by dividing the total area (1000 square centimeters) by the area taken up by each bar (1 square centimeter).

55000.00

Dentist for sure...In Civil engg, to earn be a constructor manager or planner, else be a dentist ...they have heaps of money.

$100,000

i want M.sc., chemistry 2nd year modle question papers

The BS is a bachelors of science degree (four year program of study), and the AS is an associates in science (a two year program of study). At the associate level, there is the AS degree which leads to the professional BS degree, and the Associates of Applied science (AAS). The technology degree is more of a hands on program of study.

Depends on type of cement , but it is a Minimum of 35MPa at 28 days

The main pupose of Soling is to consolidate the layer for purpose of laying foundation. It consists of digging the earth to a required depth and laying the crushed stone quarries one adjacent to another and filling the gaps with the sand. After laying for the entire area, consolidating with the Heavy Rollers or by ramming is done. Over this either a pier or regular foundation is carried out.

Percentage of steel in RCC is about 1-2%.

fc'=0.785 fck

fck=1.273 fc'

fc'=strength of cylinder

fck=strength of cube

The total voltage of the batteries or DC power source connected to a shunt motor affects how first it moves. Increasing the DC voltage will make the shunt motor run faster.

The Kellerman Tunnel, exact details are ABOVE EYES ONLY>.

Actually its answer is very easy and very simple where as you know that all things made by soem chemistry formula where you know that a metal is combinations of amny metals and also some chemicals which are used in different technology also made by combinations of different chemicals so the role of chemistry is much more important in each and every technology even in civil technology,,,, i think there will be no more capacity to understand you about it,,,

Start with the maximum flow speed (metres per second) for your liquid, then mutiply by the area of the pipe in square metres, the result is maximum volume flow rate in cubic metres per second.

P=rho*g*h

P= pressure

rho= density = 1000 kg/m^3 at about 20C

g= gravitational constant on earth at sea level = 9.81 m/s^2

h= height

P=1 bar=1x10^5 Pascals = 1x10^5 N/m^2 (based on the definition of the Pascal unit)

since by definition 1 Newton= 1 kg*m/s^2

1x10^5 N/m^2= 1x10^5 kg*m^2/(m^3*s)= 1x10^5 kg/(m^2*s)

1x10^5 kg/(m^2*s) = 1000 kg/m^3 *9.81m/s^2 * h

solving for h yields:

h= 1x10^5/(1000*9.81)= 10.19367 meters

This value might vary slightly due to the affect of temperature on the density of water.

35 to 70

It depends on the mix of concrete you are using. A basic 1-2-3 mix is 5 1/2 cubic feet of portland cement (a wheelbarrow, depending on its size, holds 1/2 to 1 cubic feet), 11 cubic feet of sand, and 16 1/2 cubic feet of stone (called aggregate) from 1/2 to 1 inch in size each. To this is added about 12-15 gallons of water.(1 1/2 to 2 cu.ft.). This will make just a little less than 1 cubic meter of concrete.

A weaker mix for basic work not needing structural strength a 1-2-3 mix of 1 part stone, 2 parts cement and 3 parts sand can be used, this would require a bit less than 1 part water.

A stronger mix of 1 part cement, 1 1/2 parts sand and 3 parts stone with about 1/2 part water is good for heavy duty concrete work. Stone will increase the strength of concrete and sand will weaken it. Using too much or too little water in the mix will weaken it as well. Additionally, concrete with too much water or too little cement tends to shrink and crack as it sets. The amount of water to use is mainly dependent on the cement in the mix. There should be at least half as much cement as sand in any mixture. The amount of stone to use should be between 1/4 and 3/4 of the total mixture. Grouts and mortars use no stone and may add limestone as an additional binder. These should not be used for structural concrete, but can be used for foundation pointing, bolt anchoring or mortaring brickwork.