For in-place structures, mandatory requirement are SNiP II-23-81 Steel Structures, SNiP 2.03.01-84 Concrete and Reinforced Concrete, SNiP 2.01.07-85 Loads and Effects. Other GOST and SP Guidelines are referenced by the mentioned codes.
Yes, you need a bracing on the other direction after making the transverse girders of the bottom platform moment connection. You said that X & Chevron bracings are not allowed below the bottom equipment platform then you may use the knee braces on the other remaining direction of the platform...
Regarding the orientation of the column, is it not possible to rotate it 90 degrees so that the connection of the girder carrying the loads of the equipment and hoppers could be fixed to the column flange using bolted end-plate, thus, eliminating the knee braces?
Why not make the Z-axis...
When I worked previously in China, we usually have 3,5,6,8,10,12,14,15,16,18,20,22,24 25,26,28,30,32,34,35,36,38,40,42,.... 100 both for Q235 (Fy 235 MPa) & Q345 (Fy 345 Mpa) steel.
Install the levelling plates/shim plates placed near the anchor bolts but not for each bolts. Also, check concrete bearing under the plates if the number of these suffice using erection load of the vessel/stack...
The Aramco Standard you shared above was the SAES-J-0003 which is for Instrumentation Design. You have to look at SAES-A-112 wherein all the Highest & Lowest Mean Day Temperature are provided. Say, if you are in Jeddah, you will have 37deg. C Highest and 16deg. C Lowest. So depending on where...
delagina,
Design considerations for my previous post were from Saudi ARAMCO and Exxon-Mobil GP references.
By the way, my previous post should say "Also, intermediate horizontal rebars of two-way reinforcing is needed for concrete block/foundation with thickness greater than 5ft, and spacing...
Suresh Arya only deals with the sizing of concrete blocks using dynamic analysis. Rebar spacing or ratio will be the engineer's discretion based on his analysis and on governing codes/specs such as ACI. So if you came up with the rebar ratio based on the concrete design and found that only...
Althalus,
Item #5 means that rebars should be placed on all faces of the pump foundation. So if you came up with a minimum rebar for the top and bottom of the foundation block, then same will apply to all the four remaining sides/faces.
delagina,
Actually, the book applies to both...
Pump foundation are designed as:
1) The foundation should satisfy 3 X the Pump Total Weight
2) Dynamic analysis to check resonance & eccentricity. If the size of pump foundation satisfied the requirement, check using static analysis
3) Calculate pump foundation rebars as a footing wherein Shear...
Have you seen their submitted drawings if they have these information? In most of our experiences in the O&G industry, the equipment assembly drawings/vendor prints have the loads included in it. Say for a pressure vessel, the vendor/prints or drawings should have the design data and loading...
Hi everyone. I am just new with Ansys. My question is pretty simple for most of you guys but I need to know it. How can I open the Ansys Workbench model file done by other Ansys user? Say, someone modeled and analyzed a certain problem and I want that he will give me a copy of the whole model...
I would like to ask regarding a concern on underground sewer pipe connection. We have this civil project wherein the client is suggesting us to come up with a coupling material for different piping materials. They want that the existing RCP (reinforced concrete pipe) to be connected to a RTR...
Yes, one method of curing for concrete slab is through wetting. There is no problem of spalling as long as the concrete has attained its initial setting.
While I am not familiar with your software, however, it is appropriate that you model your structure based on actual condition. Thus, if you have a passive soil pressure of zero then model it as is.
Use "chair bars" as they call there. These are made of reinforcing bars and can be customized in different shapes depending on depth of your footing. These are also used to support top bars for mat foundations and to prevent sagging of bars during concrete pouring. Ask some who are working in...
As per 10.9.1 of ACI 318-05 (which I have of this time), percentage of steel is from 1% to 8%. At R10.9.1 it says "The percentage of reinforcement in columns should usually not exceed 4 percent if the column bars are required to be lapped splice." Thus, if you will have a 100% lap splice you...
