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How do you figure amount of concrete needed for a round column?
Go to this website and they have a concrete calculator for just such a thing.http://www.sonotube.com/tools/concrete_calculator.html
Describe how to read a frequency table?
1st u read the column that has the subject then the tally column last u determine/read the frequency column
How can we calculate quantity of concrete in column?
Get the summation of the AREA of all columns and multiply with the effective height.
What is the column height in inches of the sixth yoke if a column is 10 feet high with a cross sectional dimension of 30 inches?
Step 1. Determine the total column height (in inches) as follows:Total column height (in inches) = column height (in feet) x 1213′ x 12″ = 156″Step 2. Enter the 24-inch cross-sectional dimension column in Table 1 at 13 feet. Step 3. · 3a. Determine the maximum (total) yoke spacing as follows:Maximum (total) yoke spacing = sum of all but the last yoke spacingfound in the columnYoke: 2d 3d 4th 5th 6th 7th 8th 9thYoke spacing:11″ + 12″ + 13″ + 14″ + 16″ + 22″ + 23″ + 23″ = 134″
square cross section b/h/h'=400/400/40mm with a reinforcement ratio of p=0.015 is loaded for action forces of axial load plus uniaxial bending.the column is to be made of C25/30 concrete & S-460 steel.check whether the column AB is short or long?
10001/999900
What is the minimum and maximum allowable percentage of reinforcement steel in concrete?
The amount of steel required in concrete as reinforcement is measured using a formula that calculates the amount of pressure that will be put on the concrete. There are different formulas to identify the minimum and the maximum amount of needed steel, depending on if you are making a beam, slab, or column.
How do you calculate the self-weight of a column?
To calculate the self-weight of a column, first determine the volume of the column by multiplying its cross-sectional area by its height. Then multiply the volume by the density of the material the column is made of (typically concrete or steel) to obtain the self-weight.
What is the advantage and disadvantage of reinforced concrete beam and column?
reinforced concrete prise
What grade of concrete use in column and slab?
as per ACI , the ratio between column & beam concrete grades dont exceed 1.4
What is a lally lock column?
A Lally Lock column is a concrete filled steel column that does not need to have the cap or base plates welded. The top end of the column is fitted with an embedded fastening unit that will accept a 1/2" screw to fasten the cap plate onto the column. The bottom end it just concrete and can be cut with a pipe cutter. Base plates are fastened with concrete screws.
What is Lally lock column?
A Lally Lock column is a concrete filled steel column that does not need to have the cap or base plates welded. The top end of the column is fitted with an embedded fastening unit that will accept a 1/2" screw to fasten the cap plate onto the column. The bottom end it just concrete and can be cut with a pipe cutter. Base plates are fastened with concrete screws.
How do you design a concrete column in a multi floor building?
A concrete column in a multifloor building must have ample steel reinforcement for the components that rest upon it. Welded 'haunches' are used to support the weight of girders and other pieces that rest on the column.
How many hours can remove the form works of column structure after casting concrete?
24hours with concrete grade 35
Can you pour concrete into a column and it not crack?
Yes but concrete is going to crack if it has too much stress. If it's a decorative column then use a 4000 mix. If it has a load on it you will have to figure how much weight is going to be on it.
What is neck column in construction?
In construction a column neck is part of the slab foundation. It is put in place to help stabilize the concrete.
Why is it that that concrete is stronger at bottom of column than on top?
when concrete is vibrated while pouring in to the form work, the cement slurry part tends to get drained through voids between aggregates and the richest part of cement slurry is detained at bottom portion of column. this causes a strong, dense, and void free concrete which ensures better compressive strength than the concrete on top portion of column.
A reinforced concrete column 200mm in diameter is designed to carry an axial compressive load of 300 kN Determine the required area of the reinforcing steel if the allowable stresses are 6 MPa?
600mm^2
