• Why IS Code 800-2007 LSD fails Ratio INFINITY, while AISC 360-10 ASD passed Beam with Ratio 0.44? Taper beam

    1) Design check by IS Code 800-2007 LSD fails gives result of Bending Ratio = “INFINITY”, which passes with AISC 360-10 ASD Ratio 0.44! Also IS 800 code output does not give any ratio in both major, minor axis! 2) Is this 12 mm Flange thickness is critical…
  • An inclined member (Stair stringer-MC 12x10.6) passing with AISC 360-10ASD, but failing in AISC 360-16 ASD showing Cl.D1

    I am designing a Stair stringer with MC 12x10.6, keeping all parameters same, results showing as failed in AISC 360-16 ASD but passing in AISC 360-10 ASD. The failure clause D1 is same in both versions.
  • Design of Solid slab (Conventional slabs)

    Hello Everyone For a while, I was using an Advanced Concrete Design (RCDC) for the design of a solid slab. Today I tried to learn the RAM concept for the slab designs but I saw a design of strips that had never seen before (When I was using RCDC and…
  • AISC Code Check

    Hello, I am new to STAAD and have ran into an issue when checking a model. The model was initially checking for ACI 360-10 so I went to the STAAD Editor and changed the code check command to 2016. This changed the utilization ratio drastically on most…
  • RAM CONNECTION- 4 vertical bolt row + EN 1993 PRYING ACTION METHOD 1 & METHOD 2

    could any one kindly clarifiy what are these option MEthod 1 & method 2 for prying action calculated as per EN 1993 if you can tell the reference from eurocode or any other document that would be of great help . Also if wanted to know if there…
  • Parameters are not considered while performing tensile rupture strength as per AISC 360-10

    I was going through the staad output. In that while using WT sections, I came to know that axial tension rupture capacity is not multiplied with LRFD or ASD factors. Why is it so? For W sections its showing correct but for WT its not. abc.std
  • Example on Direct analysis with steel design as per AISC 360-10 using STAAD.Pro

    Applies To Product(s): STAAD.Pro Version(s): ALL Environment: ALL Area: Analysis Solutions Subarea: Direct Analysis Original Author: Sye Chakraborty, Bentley Technical…
  • Issue on torsion checks of round HSS using AISC 360-10

    Hi, I am analyzing a a frame of primarily individually defined round HSS sections, sections are defined as below. When the frame is post-processed with the AISC 360-10 code Method ASD, it appears that even when the code states TORSION 0, the program…
  • fire protection effects

    Good day, Can STAAD pro be used to account for the additional stiffness and strength provide to steel columns from the concrete encasement (composite column sections)? I have noticed the fire protection tab in specifications and I've read in Article…
  • RE: Design of single angle as per IS 800 and AISC 360-10 codes in STAAD

    The AISC 360-10 allows single angles to be designed as per geometric axis only under certain conditions like if the angle has a continuous lateral restraint or the angle is an equal angle, bending only about one of the geometric axis with no compression…
  • Tension members in Staad

    Good Day, I have attempted the direct analysis method on a steel structure I have to design, however I have the following queries as it relates to the effect tension only members will have on the analysis (the structure has tension rods in the form…
  • direct analysis with tension members

    Good day I have modeled a structural steel frame building and analyzed it using the direct analysis method, however I have received a few warnings and I would like to know the relevant of these as well as their potential effect on my analysis results…
  • Compression capacity of an I-shaped steel section (Non Slender Flange and Non- Slender Web)

    Applies To Product(s): STAAD.Pro Version(s): All Environment: N/A Area: Design Subarea: American Design Codes Original Author: Biswatosh Purkayastha …
  • Direct Analysis method using AISC 360-10

    hi, I am using Staad pro v8i SS 6, version 20.07.11.70 after analysing piperack staad file, i am getting below note message in output file for every load case and load combination defined using repeat load. "** NOTE : MOMENT BALANCE DOES NOT CONSIDER…
  • RE: Limcon Bolt Strength

    In AISC 360-10 table J3.2, for A490X bolts, Fnv is 579 MPa. It was 520 in the 2005 edition of the manual, however. Here's a reference regarding the 2010 changes: http://msc.aisc.org/globalassets/modern-steel/archives/2011/11/2011v11_a_comparative_look…
  • Torsion Design of Member # Not Possible

    Applies To Product(s): STAAD.Pro Version(s): ALL Environment: ALL Area: Design Subarea: Design for Torsion as per DG9 Original Author: Sye Chakraborty, Bentley Technical…
  • RE: Bent Plates in RAM Connection

    I think the situation here is that AISC 360-10, Table 10-9 is used in the case of a single plate connection only. We opted to only implement this for shear tabs since it's within that specific section of Chapter 10, but it would be a good question for…
  • Exception[access violation]Raised! Aborting Analysis.....

    Hello, I try to run the analysis and CODE CHECK with a LOAD LIST using AISC 360-10 on a pretty big STAAD model and I receive the error message "Exception[access violation]Raised! Aborting Analysis....." I have read other post on this forum relating…
  • RAM Connection - Column Splice Moment Connection (Flange-plated) & Single Shear Plate

    I am designing a column splice in RAM Connection. Both columns are W10x49 A992 Gr50. Shear = 50 kips, Axial = -300 kips, M33 = 150 kip*ft. After designing the problem, I obtain results with demand values I do not know. How did RAM Connection calculate…
  • AISC 360-10 Missing Members from Code Check

    When carrying out a code check to AISC 360-10 using STAAD Pro V8i SS5 (20.07.10.41), the 2nd, 3rd and 4th members in my member list are consistently omitted from the code check. The member first in the list displays a UR and this also appears on the unity…
  • Web Tapered Members - Plate wise estimate

    Dear Sir/Madam, I have designed a Frame using web tapered members in STAAD Pro. The frame weight shows the weight of different beams members used. For example, the frame is having a member whose dimensions are Web- 250 to 750 mm Web thickness…
  • Member Check to AISC 360-10 and AISC Design Guide 9

    Hi, I have some questions regarding member check to AISC 360-10. So I was doing some check on a simple member (attached output file), and then I checked it using hand calculation to verify the numbers (I need to know how the program do simpler problem…
  • STAAD shear calculation error for AISC 360-10

    Hi All, I have noticed that STAAD incorrectly calculates the shear capacity for a member. Specifically, it uses a VERY large shear area (overstated by a factor of 2!). Here is the output for an Australian 250UC72.9: INTERMEDIATE: Aw: Cv: Kv: h/tw: Vn…
  • STAAD V8i series 4 (20.07.09.31) ( slenderness check)

    Hi, Currently I am using AISC 360-10, I assigned slenderness value 200 ( main 200) to members. some of the members are fail in slenderness but STAAD result shows "pass" could you please tell me why it happens ? please see attached snap below. …
  • Design of composite (Steel beam+deck slab) as per AISC, BS & Eurocode

    Dear bentley & friends, I had modeled the floor beams as composite and gave design parameter for Eurocode but design not performed and I had changed the code to BS and AISC, in this two codes composite design is done but not in eurocode. Why? How…