Dear All
We are designing a foundation having two RCC slab as per BS 8110.
Three layer of rebars provided. Refer attached PDF file
As per BS 8110 , for calculating punching shear capacity we have to consider % tensile reinforcement.
Critical section for punching shear is at a distance of...
In IEC 60071 ,why there are multiple values for one system voltage. For example for 220 Line.
System highest voltage = 245 KV
Short duration power frequency withstand voltage 360,395,460
Lightening withstand impulse voltage 850,950,1050.
May be silly question , As I am Civil engineer.
Thanks...
How to calculate required distance between arcing horn on insulator (Line side to tower side) of 220 KV transmission line for line having altitude of 1500 m to 2000 m above mean sea level.
Does this distance depend on elevation of line ? Does it depend on rated impulse withstand voltage of...
How to calculate required distance between arcing horn on insulator (Line side to tower side) of 220 KV transmission line for line having altitude of 1500 m to 2000 m above mean sea level.
Does this distance depend on elevation of line ? Does it depend on rated impulse withstand voltage of...
How can we develop ( Manual / Excel sheet ) sag tension calculation of conductor considering creep effect ?
We are doing this using PLS Cadd . Is there any books / reference material so that we can match the result of PlsCADD in excel / Manual calculation ?
Thanks
Nitin Patel
Can someone suggest how to determine optimum cutting schedule from a give stocks of angle sections using excel?
Stock data
100*100*7 ---- 5000 mm 150 qty cost 1000 $/MT
100*100*7 ---- 6500 mm 25 qty cost 1050 $/MT
90*90*6 --- 6500 mm 100 qty cost 1020 $/MT
90*90*6 ---- 5500...
AS per ASCE 10-97 while calculating l/r for leg member which is continuously staggered as shown in fig 3.2 b and 3.2 c of ASCE 10-97 , we have to consider kl/r = 1.2 l/r.
Does this apply only to leg members or it will be applicable to lattice member also. (Lattice p7T as shown in attachement) ...
For one of the project we need to design dead man anchor block foundation for guy anchor. Maximum tension is 270 KN in guy wire. We have to design for 405 KN tension. Guy slope with horizontal plane is 54 Degree.
After deciding shape of dead man anchor(3.5m * 0.45m * 0.45 m )and Foundation...
For one of our project we have supply Bolts as per ASTM A394-08 , but having diameter = 16 millimeter. ASTM A394-08 refer to ANSI/ASME B18.2.1 for inch dimensions. Which is the equivalent code of B18.2.1 with metric dimension ?
As per ASTM A394-08 Thread length = 1.25 " for 5/8" Dia bolts ...
For one of our project we have supply Bolts as per ASTM A394-08 , but having diameter = 16 millimeter. ASTM A394-08 refer to ANSI/ASME B18.2.1 for inch dimensions. Which is the equivalent code of B18.2.1 with metric dimension ?
As per ASTM A394-08 Thread length = 1.25 " for 5/8" Dia bolts ...
How to determined that two lines in 3D are intersecting or not? and if intersecting then at which point ? How to find coordinates of intersection point?
Coordinates of two lines are furnished in cells like
a1 contain x1 of line1
b1 contain y1 of line1
c1 contain z1 of line1
a2 contain x2 of...
What is the minimum phase to phase clearance required for 765 KV D/C vertical configuration and 765 KV S/C Delta configuration line.
Is there any formula available to find required phase to phase distance ?
How to get the Hard Drive Serial Number given by the Manufacturer with VBA?
Please note that I need Number given by Manufacturer & not Hard drive serial number which is a random number that is generated by DOS or Windows every time you format your hard drive.
Thanks
How to get the Hard Drive Serial Number given by the Manufacturer with VBA?
Please note that I need Number given by Manufacturer & not Hard drive serial number which is a random number that is generated by DOS or Windows every time you format your hard drive.
Thanks
I had developed various user define function & stored them in Excel add-in file . *.xls excel 2003 format
I want to save as old add-in file in to new excel 2007 file format *.xlam and remove old *.xla file
Now I want all my old excel files to refer to New *.xlam 2007 files for user define...
For calculating phase to phase vertical clearance between conductors we use following formula
cls = 0.75 * sqrt(max sag + insulator length)+ V/150
For 400 KV line this value is about 7.0m , however Indian code require this to be 8.0 m
For 400KV lines we provide 9.0 m as mid span clearance...
As per tomlinson book deflection at head of fixed headed pile is y=H(e+Zf)^3/(12EI)
Above is for single pile only Or can be use for group of piles connected with Pile cap ?
I am using this for 5 nos (1200mm dia) concrete piles connected with pile cap 2500mm depth. Pile spacing is 3600mm. I am...
Can someone provide me linear or non linear properties for 1.68" 2032 MCM 72/7 ACSR Conductor to use in PLS CADD?
I found properties for MOCKINGBIRD which is having 2034.5 kcmil. But for that conductor also I could not find details for coefficient of linear expansion and Modulus of elasticity...
Does it effect when Tower location is such that Back weight span is 400 m and Ahead weight span is -300m .
So under normal condition total weight span 400-300 = 100 m ( Total weight of wire action down ward) But under broken wire condition when back side break tower is under weight span of -300...
Hi
Can anybody give some idea on how to calculate forces genrated by short circuit ,We required to design Gantry for this forces. What are the parameters which governs this forces?
Can you suggestany Book or code or WebSite for this subject?
Nitin Patel
