Sohaib Iqbal

You guys scared the hell out of him. No one can read that many books.
Dear Hassan, just pick one book and get the max out of it.

Asalam o Alikum Everyone
Engr. Hasan Nawaz
MS Structural Engineering
National University of Science and Technology Islamabad
Working as Structural Design Engineer 

cover requirements are necessary. in case of paints it needs proper mentainance on the basis of define mentainance model otherwise weather impacts like carbonation (due to increasing content of CO2 in air) , chloride attack can cause corrosion of steel. Concrete Cover is the first defence line to prevent corrosion.

Sohaib,
You can do a RAFT foundation supported on piles that can support your building columns. In order to design the piles you need to ask geotechnical consultant to provide you with skin friction values that can be used to do the geotechnical design of pile. Once that is done, you need to  do structural design of pile. Pile design is fairly simple. You can do driven steel or concrete piles based on geotech recommendation.
For the slab, 44' by 66' is not a big span. You can design it using Safe. You provide beams to reduce the slab thickness. 
Thanks.
 

Correct I am wrong. As per UBC # of modes shall be such that it incorporates 90% of participating mass. If participating mass is 90% in first two modes then no need of other modes. If 90% is acheiving in first 6 modes then first 6 modes are sufficient. If 90% is not acheiving then you have to scale your spectrum. In STAAD add missing mass value.
Also, I have worked on STAAD mostly. If you require STAAD model then i can attach it as well.

Dear frnd.
u first have to decide ur subject ie structure, management, water resource etc. then try to find a job related to ur field. most of the students nowadays prefer planning and construction management . unfortunately solid waste management is v rare in Pakistan. in start u will get good salary but later u will face difficulties in growing and switching of job. As a freshee now u can built career in any field but later it will be difficult. 

If you are doing seismic analysis, you need to make sure to take rigid beam assumption into account.
 
Increase the beam section to 10ftx10ft, and check the shear in columns. You will find equal shear in storey columns and increasing uniformly from top to bottom corresponding to the applied lateral load. I hope that helps.
 
Make sure you put end offsets of columns to 0 for both ends to properly see shear diagram along the full length.
 
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Now comes the question of whats the difference between two.
 
When girders are rigid, moment is computed from sway of columns x height of columns right, but in case of flexible girders, low bending stiffness of girders result in rotation at beam column joint...so additional drift and more moment.
 
When girders are rigid (rigid-diaphragm) lateral force is distributed based on bending stiffness of vertical elements. So equal shear in all columns.
 
When they are flexible, lateral force is distributed based on tributary area, so you see more shear in internal columns as compared to edge columns. 1/3 V in internal columns and 0.5/3 V in edge columns in this example.
 
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My understanding about more shear in first storey columns is as follows. Others can correct me.
 
In rigid-frame, shear is resisted by columns by bending in double curvature, this also bends girders in double curvature. Difference of moment of column above and below and the difference of moment of beam framing into this joint from left and right should be zero for equilibrium which is not the case and that is why columns and beams bend in double curvature.
 
First storey columns have more shear because of shear racking. Shear racking is more significant at lower storeys and happen due to the effect mentioned above (double-curvature bending to maintain equilibrium).
 
For example consider this example see the attached image for shear racking. Its like a couple acting as positive force at storey 2 and negative at storey 1, that in turn increases the shear in columns under storey 2 and decreases in columns under storey 1.