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  1. nour75

    Torsional effect on welded tubular connection

    Hi All, I have to design a welded tubular connection that connects 2 tubular members (like a T shape) in an off-shore platform jacket. One of the tubulars is a column (2225x80mm) and the other is a brace(1100X25mm). The brace exerts torsion on the column beside in-plane and out-of-plane bending...
  2. nour75

    Torsion Effect on Tubular Joint design

    Attached a schematic configuration of the connection...
  3. nour75

    Torsion Effect on Tubular Joint design

    Hi All, I have to design a tubular connection that connects a tubular stub with a Jacket Leg (tubular with thickened part). The tubular stub exerts torsion on the jacket leg (in addition to the axial, and bending moments). As far as I know, according to AP-RP2A-WSD, tubular joint capacity...
  4. nour75

    How to report specific joints displacements only without members stresses and forces?

    is there a way in SAP2000 to make analysis for the model to report specific joint displacements only without stresses and forces being reported for the whole model members. This is required sometimes in time history analysis where the required output takes a huge amount on the memory and the...
  5. nour75

    Seismic Analysis Requirements in Areas with Low Seismic Activity

    Hi jthrncir : I think it is better to perform DLE analysis. This is because of 2 things: 1. in API RP 2A Sect 2.3.6.b.2 states that "platform design would normally controlled by storm or other environmental loading rather than earthquake", this means it may be not adequate for special rare case...
  6. nour75

    credentials evaluation for FE exam

    I am preparing to take FE exam next April. I have my undergraduate engineering program out of US, So, I think I have to get my credentials evaluated from NCEES credential evaluator. I want to know how long does it take for NCEES to evaluate my credentials? (I searched their web site for this...
  7. nour75

    Fatigue solved examples for API-RP 2A

    Hi, Are there any manuals or text books giving solved examples for API-RP 2A? I am engaged in an offshore design job and want to study about “fatigue analysis and design” for fixed off shore platforms. Any book or web site links will be a great help to me. Thanks for your help
  8. nour75

    Floor vibration analysis for a platform mounted by equipments

    Thanks (ATSE) and (271828) for your help, I appreciate it. I am searching for the basic equations that control the relation between the equipment frequency and the structure frequency. Do you know any reference discuss that issue (book, website, paper, …) Note: I am not sure if there will be...
  9. nour75

    Floor vibration analysis for a platform mounted by equipments

    Hi, I want to check floor vibration criteria for a platform (industrial structural steel platform) carrying an equipment producing vibration. Is there any one knows how to make a floor vibration analysis for a platform mounted by equipment?. The equipment manual provides all important...
  10. nour75

    structural steel buildings in aluminum plants

    Thanks hokie66 and PSlem for your interest, Actually I am supposed to prepare a presentation on the aluminum and alumina industry structural buildings, since my company is targeting to take new project regarding this field. The buildings that I am interested in are the SAG Mill (grinding and...
  11. nour75

    structural steel buildings in aluminum plants

    Any one can help me to find any material regarding structural steel buildings in aluminum plants, or give any website which provides information about the structural concepts used in Aluminum plants buildings. Thanks for your help
  12. nour75

    Guidelines For Seismic Evaluation&Design For Petrochemical Facilities

    Would anyone help me to find the latest version of ASCE publication with the name “Guidelines For Seismic Evaluation And Design For Petrochemical Facilities”, which prepared by the petrochemical committee of the energy division of the ASCE. Thanks in advance
  13. nour75

    ASCE-5 combinations used at soil-structure interface

    I have a discussion with my coworker about footing design subjected to vertical forces due to D, L, and E loads. The soil report permits a 1/3 increase in allowable soil stress for transient load conditions. I say the following points, 1. To get the max expected soil compression stress and the...
  14. nour75

    DESIGN REQUIREMENTS FOR SEISMIC DESIGN CATEGORY A

    Item 11.7.3 in ASCE7-05 says “Any smaller portion of the structure shall be tied to the remainder of the structure with elements having design strength of not less than 5 percent of the portion's weight.” What is the relation between the 5% portion's weight and the element design strength?. Can...
  15. nour75

    A good manual for cold-formed steel design.

    I am searching for a good manual for cold-formed steel design, is there any one knows a good manual or text book that contains solved examples?
  16. nour75

    Scaling of the modal base shear in ASCE7-05.

    Thanks JAE for your answer. You said “I don't think you have to scale down. Only up”, but in older version codes like UBC-97 in section 1631.5.4, this item is trying to reduce the elastic response parameters for design. This implies that this code tries to scale down not scale up the modal...
  17. nour75

    Scaling of the modal base shear in ASCE7-05.

    ASCE7-05 gives provision (12.9.4) which addressing the scaling of the combined response for the modal base shear (Vt) when it is less than 85 percent of the calculated base shear (V) using the equivalent lateral force procedure. But, there is no statement for the case when the modal base shear...
  18. nour75

    How to open a SAP v1 file on SAP v10?

    From my knowldge there is no version for SAP called "SAP v1". do you mean SAP v11?
  19. nour75

    Units,tapered rectangle section,material constants in STAAD

    I have some questions in STAAD, it will be appreciated if someone helps me. 1. How to change the units to SI (kN, m, c) in the concrete design check module (in choosing the design brief). 2. How to make a tapered rectangle section. 3. How to make a star shaped angles. 4. How to change the...
  20. nour75

    The wind coefficients on a MWFRS of a multi-gabled roof

    Thanks again dgkhan. Page 60 and 58 is applicable for Components and Cladding (C & C) only not for Main wind Force Resisting System. P-48 is for all heights of Main wind Force Resisting Systems, but not for multi span-gabled roof. I want a provision or a figure that addressing the case of the...

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