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  • Users: shp6
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  1. shp6

    Masonry Guardwall Design

    Bridgebuster: Thanks a lot for your help.
  2. shp6

    Masonry Guardwall Design

    I am currently designing a "masonry guardwall". The wall is 5'-00" tall and sits on top of a stone retaining wall. The thickness of the masonry wall is 16" and the reinforcement will be extended from masonry wall to stone wall and maintain at least a development length. The stone retaining...
  3. shp6

    Building Length Limitation for Concrete Slab

    This is an elevated slab. Does it make any difference if they are a residential building, office, or parking garage?
  4. shp6

    Floor plates

    I am interested in knowling why do you want to use a constant thickness plate for 20m span. I would suggest to use beams with corrugated metal deck. If steel plate is your final selection, you can read "Plate and Shell" by Timoshenko. This is a classical text book and solves everything by...
  5. shp6

    Building Length Limitation for Concrete Slab

    Hi: I remember there is a maximum length for concrete slab without pour strips or expansion joints. Can anyone tell me what is the length and which code section? If I remember right, this length limitation is different for pour strips and expansion joints. The requirements are also different...
  6. shp6

    Live Load

    Thanks to lkjh345. That is a positive approach for challenge questions. That is exactly the code language I am looking for. What I will do now is to write a letter to ICC to request an explaination for my case. Excellent. Thanks again lkjh345.
  7. shp6

    Live Load

    Thanks, mfrad. That is the support I am looking for. That is exactly the approach I am going to. The challenge is the computer racks have to go to some exact locations. According to my analysis, few beams under these racks are overstressed from 2% to 20%. I can live with a 5% or less...
  8. shp6

    Live Load

    By the way, the 200 PSF of equipment does not apply to the entire room. These computer servers are spread out in the rooms. It is similar to filing cabinet case but lighter. Based on my analysis, if I can limit the live load to 20 PSF rather than code required 50 PSF, these beams will not be...
  9. shp6

    Live Load

    Thank you all. I guess the bottom line is "Limiting occupancy" is not a solution for this case. Does anyone know any code saying "Limiting occupancy approach is absolutely prohibited"? I understanding that structurally this approach is not a good idea. But politically, I need to make this...
  10. shp6

    Live Load

    Thank you for all comments. The equipment are computer servers with an average of 200 PSF. These rooms will be highly secured and limited personnel. We feel comfortable to limit the live loads for our personal opinion. However, we are looking for a code support so we can stand in front of...
  11. shp6

    Live Load

    I am currently working on an existing steel building. The composite floor was originally designed for 50 PSF of live load. The building owner now wants to add some heavy equipment to the floors. Based on my analysis, the floor beams need to be strengthened. However, the floor below belongs...
  12. shp6

    E-mailing large files

    Hi all: Based on my experience, MS Word files are getting huge while the photos are directly copied and pasted into the Word files. The way to reduce the size of the Word files with photos is as follow: 1. open the photos with Photo Editor or equivelent. 2. Select the photo and copy it. 3...
  13. shp6

    Foundation for 12 kips Pull-Out Force

    Hi: all, I hope everyone had a great weekend because I did. In this weekend, I summaried the ideas from all of you and came out with a great system which doesn't need any frame or heavy foundation. The idea is as following: We are going to unscrew the inner piston from the outer shell of a ram...
  14. shp6

    Foundation for 12 kips Pull-Out Force

    Thanks Ron. As I mentioned before, my system has four legs spreaded at four corners of a square shape. When the load is applied, the two legs in the diagonal direction will be in tension/compression at the same time while other two legs have the opposite reation. In this case, my mat...
  15. shp6

    Foundation for 12 kips Pull-Out Force

    Hi: Ingenuity, Thanks for your advise. After talking to our shop manager, we may want to do a mat foundation instead of mini pile as you mentioned. The reason for that is we do not have the right equipment to drill a 10 feet deep hole here and the soil condition is unknown, either. Based on...
  16. shp6

    Bolt Modelling

    Well...Brad...I guess you are right with your models. However, I do have problems with the pretension option in ABAQUS when I need to move my bolts with my entire structure. I thought that is the limitation of this option. I do not want to argue with you about this issue and what I mentioned...
  17. shp6

    Foundation for 12 kips Pull-Out Force

    Hi: Thanks to Jay, whymrg, Ingenuity, dlew, and pylko. Just for you curiosity for this mechine, let me try to describe this setup for you. As Ingenuity knew, I am working in a company has a lot of stressing rams. These rams can take as much as 1700 tons of force. These rams includes...
  18. shp6

    Foundation for 12 kips Pull-Out Force

    Hi: Thank Jay and whymrg. The reason I posted this question is because we do not want to open a big hole inside our mechine shop. The "legs" I have so far is about 1 foot by 1 foot and bolted down with two 1" diameter A490 bolt or threaded rods. My idea is to build some kind...
  19. shp6

    Foundation for 12 kips Pull-Out Force

    Hi all: I am designing a small steel assembly for a mechine, which has four "legs". The legs of this assembly will be bolted to an industrial floor on grade. Due to the overturning moment, the pullout force for legs is approximiately 20 kips per leg. The self weight of the assembly...
  20. shp6

    Bolt Modelling

    Hi: I have been seccessfully using brick elements in ABAQUS with temperature effect to model bolts. My entire model was a steel structure assembly with concrete which has a total of 60,000 DOFs. These bolts were modeled using approximately 600 8-node brick elements per bolt. The...

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