3 posts in this topic
I need your help in deciding whether to go for a RCC basement or Pillar foundation for home construction. I am not a civil enginer. I want the home to be constructed on a strong foundation. I have heard from someone that basement makes the home weak in terms of its foundation. For example in earthquake home with a basement can be more vulnerable to cracks or collapse. I have zero knowledge about construction. That is why I need your help.
Should I go for a RCC basement OR pillars foundation.
My only concern is that the home should be on a strong foundation. I am planning for ground floor and in future if needed then first floor. Please guide me which way to go.
By waqar saleem
I have observed that some senior engineers have not been using stiffness modifiers in their designs. What is the concept behind i am not clear . As we design RC for strength, section is cracked and to cater for this cracked section, property modifiers are used as per
ACI 318-11 10.10.4 (stiffness requirement)
ACI 318-11 8.7 (stiffness requirement)
UBC97 1630.1.2 (modelling requirement)
so why whole section is considered in design. is there any other logic which i couldn't understand.
I have designed the bridge between two building. Fixed at one end and roller at the other. The bridge at the roller end, rests on a concrete ledge. I have provided the expansion joint based on the formulation of ASCE for building separation. I have certain queries on it :
1- Is building separation formulation is appropriate to provide expansion/moment joint in my case?
2- I am trying to allow the movement through slotted holes in base plate. If my bridge required expansion is 300mm through formulation indicated in Point-1 above, should the slotted hole be twice of it i.e. 2x300mm = 600mm
I am still unsure as to what size the slotted hole should be ? and what governs the expansion joint of bridge over the ledge end.
I am relatively new to bridges. any help would be highly appreciated. Thanks in advance.