Is structure engineering troubling you?
Do you face problems in solving even the basic problems?
If yes then look no further as engineeringcivil.com along with Er. Gobind Khurana and Er. Abhimanyu has taken an initiative to help civil engineering students in structure related queries. We are thankful to Er. Gobind Khurana, Er. Abhimanyu and Vincent T. H. CHU for being a volunteer in helping other engineers in solving problems related to structure design in R.C.C and Steel.
Expert 1
Name – Er. Gobind Khurana
Qualification:
1. Bachelor of Civil Engineering From Thapar University Patiala
2. Master of Structure Engineering from Delhi University.
Work Profile: Currently working as Consultant for structural problems in R.C.C and STEEL Design.
Expert 2
Name – Er. Abhimanyu
Qualification:
Bachelor of Civil Engineering From Thapar University Patiala
Training at site in Unitech ( during 6 month summer training)
Work Profile : Presently working as associate design engineer for Fluor Daniel India Pvt Ltd. Area of work is structural steel design and concrete foundations for both static and dynamics analysis ( mainly in oil and gas industry)
Expert 3
Er. Vincent T. H. CHU obtained the degree of civil and structural engineering in the University of Hong Kong. He is the author of the monthly column “The Civil FAQ” in the Hong Kong Engineer published by the Hong Kong Institution of Engineers and is the author of the civil engineering monthly columns “The Civil Q&A” and “The Civil Corner” on the websites on World Federation of Engineering Organization and the University of Science and Technology (American Society of Civil Engineers – International Student Group) respectively. He is the recipient of the Ombudsman’s Award 2007 under complaint-related category and Young Engineer of the Year Award 2008 (Merit) organized by the Hong Kong Institution of Engineers. He is also the author of the engineering book “200 Question and Answers on Practical Civil Engineering Works”, “Civil Engineering Practical Notes A-Z” , “Ask Vincent Chu (Common FAQ on Practical Civil Engineering Works)” and “The Underlying Reasons in Practical Civil Engineering Works”.
So if you have any query regarding the concerned matter, just drop a comment and we will try to solve it as soon as possible.
can i have some detail explaination on slipform technology and jump form technology…
To saverkhan
Slipform technology is a method for constructing large towers or bridges from concrete. The name refers to the moving form the concrete is poured into, which moves along the planned alignment of concrete strcuture as the previously poured concrete hardens behind it.
Sir,
Is it necessary to desuttered the Retaining wall for curing immidiatly after next day of Pouring…? why…? Please explain me….
To Rinkal Anajwala
The time of curing depends on the concrete type (with PFA or slag) and the method of curing. For instance, concrete with PFA requires longer time of curing and curing by curing compound needs longer curing time.
For normal concrete, it takes about 4 days for curing. Once we are ascertained that the retaining wall gain suffciient strength for self-standing, it should start curing works to keep concrete hardening at good conditions.
Dear Sir,
I like to know at the time of calculating the concrete quantity of any section steel is not taken into account why?
how standard deviation value could give description on strength and concrete quality?
what is ad mix? why it is use? how it function and it specification
Dear sir
how to calculate the quantity of cement, sand , water , metal in 1: 2: 4 proportion with neat prossezor method plz send me the detail of proportion
Dear frnd….1.52 is a constant(bulking factor) so 1.52/1+2+4 =0.2171 ur ans..
aft u find out cement bag.so one bag =0.0346 m3
Cement = 0.2171/0.0346= 6.27 bag
Sand = 0.2171 x 2 =0.4342
Aggregate = 0.2171 x 4 =0.8684
Ujjval Gupta..
Hi,
is there adifference between grade 460 and grade 500 rebar. The delivery on site is grade 460 to BS4449/1997. However that BS standard is no longer in use?
To Declan,
It seems to be interesting to have Grade 500 rebar. Please state more information for my consideration.
Hey all,
I have 7 year collision data for a city and using only this data i want to incorporate the age, gender (of driver involved) and surface condition in the collision prediction model. Please let me know whether you guys can help me or not.
What will be the function of the model if I incorporate above mentioned factors in the model. How can I use the same in the future?
Can someone please show me how to determine the lateral forces on a circular reinforced sewerage manhole reaching a depth of 22feet (6.7m). After which, determining the thickness of the manhole wall and reinforcement require? Thanks !!!!
To Mike Pang
The lateral forces on a sewerage manhole could be readily obtained by soil envelope (can assume triangular one) with superimposed live load. The thickness and reinforcement could be obatined by normal RC design calculation.
Alternatively, you could get some readily designed sewerage manholes available in standard drawings which you could skip the tedious design.
what is the alternative materials for Concrete, cement, steel, timber and tiles?
To Ashraf
There are currently various alternatives for tehse materials such as FRP and plastics etc.
They are being studied and investigated for teh time being.
I require a formulation for a concrete mix suitable for tilt slabs. The mix must be at least 58mpa after 28 days and at least 24-30mpa after 24 hours. The purpose of this is that we desire to form the tilt slabs and raise them the next day. We require 2 hours of working time (preferably). These structures are in remote Australia with temp 25 – 38’C.
sir pls. send me the info regarding eco friendly house.. m dng prjct on ths topic so..
sir,
i’m designing raw water storage tank of 30x50m size 1.5m below ground & 0.5m above ground, sbc 15t/m2, weather condition 45 deg in summer & 30 deg in winter and normal 30″ av rainfall, do i need to provide expansion joint in tank walls & floor, thanks in advance
sailesh
To Saliesh
There are in general two main approaches in designing water storage tank:
(i) In the first method, movement joints are designed in each panel of reservoir floors so
that they can expand and contract freely. Each panel is completely isolated from one
another and a sliding layer is placed beneath them to aid in sliding.
(ii) The second method, on the contrary, does not make provision to free movement. Due
to seasonal and shrinkage movements, cracks are designed to occur in the reservoir
floors such that very tiny cracks are spread over the floor and these cracks are too
small to initiate corrosion or leakage. However, in this case, the amount of
reinforcement used is much larger than the first approach.
vincent
thanks
wether in my case of 30mx50m it is needed to provide expansion joint as i’ll provide extra amount of steel as sujested
thanks
sailesh
Respected Sir,
I want to design a flat slab of 10m*10m , Column size-0.9m*0.9m With **NO HEAD and DROP ** Thickness is 300mm and the loading on d slab is 25KN/m^2.
Also Can u please suggest me how to go about Designing of STEPPED FOOTING for columns of loading 10000KN.
Thanks
respected sir,
I have some questions in my mind given below.
1.what are the different types of precast slabs panels used in precast construction with fig.?
2.how is the quality control in precast constructions?
Please suggest me the answers for above..
Thanking you…
Dear sir,
we are start concrete grade M30 by volumetric design so give me a proportion for this……
How to calculate the quantities of cement,sand and metal for the m25,m20 and m15 grades
respected sir,
can u help me regarding the training for 6th sem students?
can u give me some options both in india or outside india….
how to prepare new project report for layout development