Browse By Tags

  • Kindly go through the list of question regarding modeling and assumption taken?

    Model Description:Hopper Supported over Steel frame Structure Questions 1.Directly Applied the hopper capacity load on the top upper member is this assumption right??(Hopper capacity/1 bay area) this is distributed over beam as member load via manual…
  • Need to understand Staad Design Parameters for IS800 and IS456

    Is there any sample problem of STAAD or any documents which can help to understand how and in which conditions STAAD Design parameters can be used for IS 800 and IS 456. Basic parameters like FYLD ,Fck , CLEAR ,TRACK,TAKE OFF are easy to understand,as…
  • difference in steel design results

    please check the code attached. I'm trying to design a purlin section on staad pro using various indian codes. in steed design result is800 and is800 2007 WSD failed the section BUT IS800 2007 LSD passed the section. should I consider this section passed…
  • torsion

    Dear sir, when I select torsion perimeter in design, I am getting warnings.I also submit this file and got consultant comments which are given below. 1 For lateral torsional buckling check of cantilever beams UNB and UNT parameters to be assigned…
  • How to apply wind load on water tank structure?

    I am trying to analysis an water tank structure, height of structure is 36 m. when i am trying to apply wind load on structure, load acting up to 18 m only above the 18 m wind load not acting, Why? Can you help me to solve this problem? Up to 21 m structure…
  • ERROR** SECTION PROPERTIES NOT ENTERED

    When analyzing my STAAD.pro file, I am getting an **ERROR** SECTION PROPERTIES NOT ENTERED FOR MEMBER xxx no missing attributes again i created the new section wizard same error continues so kindly help me .....what i have to correct .... kindly do…
  • Incorrect slenderness ratio for angle section

    While designing the member using CAN/CSA S16-14 code. The slenderness ratio (KLR) parameter appears to be calculated incorrectly by STAAD. (refer attached snap) The hand-calculated value comes out to be 1483/20.2 = 73.41 while STAAD reports 107.133…
  • Structure Modeled in Physical Modeler to STAAD Advanced Concrete Design

    Hi, Hopefully someone can answer this. I created a concrete structure using STAAD.PRO CONNECT EDITIONs PHYSICAL MODELLER Workflow. Then after that I also analyse it using the same software. Save and close the file. To finish my design, I opened it…
  • RCDC does not recognise cantilever slab modelled in Staad pro

    My project involves cantilever slabs without peripheral beams, modelled and analysed in Staad pro. The challege is that the cantilever slabs seem not recognized by RCDC for design and detailing. Any way to get around this please?
  • *** STAAD.Pro ERROR MESSAGE *** DENSITY NOT PROVIDED. SELFWEIGHT COMMAND IGNORED

    Hello everyone Please help me to resolved this error I don't get it here the staad editor, I'm still learning so thanks for everyone who help me :) STAAD SPACE START JOB INFORMATION ENGINEER DATE 18-Jan-19 END JOB INFORMATION INPUT WIDTH 79 UNIT…
  • How can i apply seismic loads on portal frame Bridge

    Dear Members, can u please guide me how to do seismic analysis in staad for the portal type structure(Integral). span is for 24.0 portal-model .std m and here am attaching a model for 10.0m
  • Query regarding mismatch of results for design of Steel Beam-Column as per IS:800-2007

    Sir, I hereby attached a staad frame and a pdf file. I have tried to design one beam column from the staad file manually. While doing so, there is a mismatch between the staad result and my manual result. Why is that happening. I have done the same…
  • "ERROR NOT ENOUGH MEMORY FOR SPECTRUM FORCE-6" in STAAD.Pro V8i

    Hello, I´m trying to analyze a model in STAAD.Pro V8i, said model consists of a slab as foundation, a perimetral RC wall and pedestals and beams to support the upper structure. The model has about 22000 plate elements and about 40 beams. Now to the problem…
  • Lifting Beam Design

    When I run analysis, it says the software does not support ASME code. Please help how to design a lifting beam. Can I use AISC Code? If so, what is the load factor I will use because it's for lifting? Thanks in advance.
  • Modeling of Stiff Pier Shaft

    Dear Respected colleagues, as you can see from the attached images, i need help in modeling the true behavior of my pier system as shown in the 3D view. Since one pier is very stiff in transverse direction, there should be no deflection of any sorts but…
  • Basic Frame Analysis - Fy Different

    Hello, I am trying to analyze a normal frame in STAAD in 2 different ways. They are exactly same except that I have an Fz release at 2 nodes in one of them. Please see attached PDF. As you can see I am getting different base Fy values. I don't understand…
  • Design of Truss/Purlin in Staadpro

    I am facing a problem while designing a roof truss. While designing the roof truss as a whole , the purlins are failing in output results on analysis But passing when checked by selecting the beam individually. Also when the purlin is designed…
  • Warning and Notes in Design

    I am designing a truss structure and its showing Some Notes and Warnings in results output like: Notes- 1) Very weak Spring Added for stability Warnings- 1) Instability at joint 2) Zero stiffness in direction 3 at joint . Kindly check the…
  • Seismic Loads Concentrate Only On Inclined Member

    Hi Good Day! I would like to raise my concern in my STAAD model regarding the distribution of seismic forces. Currently, I can't find a way to achieve my desired mode shape which is translational for Mode 1 and 2, and torsional for Mode 3. Though I…
  • SPIRAL PEDETRIAN BRIDGE WITH STEEL BOX GIRDER USING MESH ELEMENTS-ERROR MESSAGE

    I AM DESIGNING A SPIRAL PEDESTRIAN BRIDGE WITH TRAPEZOIDAL STEEL BOX GIRDER. I HAVE GENERATED THE MODEL USING MESH ELEMENTS. HOWEVER UNABLE TO CHECK THE DESIGN FOR THE ERROR possible syntax error " DESIGN ELEMENTS 1 TO 10800" CAN ANYONE GUIDE ME WHAT…
  • Can STAAD show me the least favorable resultant force for all posible combinations in a given node?

    Hello, recently graduated civil engineer here so please have patience. We are performing the connection design for a truss type steel structure here at my office. As I understand when it gets to the part of designing a plate you must work with the resultant…
  • Different displacements with nearly identical models

    Hello, I´m designing a reinforced concrete "perimetral wall" (Not really sure that´s the name it would have in English) that has 2 different sections, the only change between sections is that one has a 30 x 40 cm "tie beam" (again,not sure that´s the…
  • Period Time Range

    Former Member
    Former Member
    What is the period time range of first mode of RC high rise buildings under seismic loads?
  • Regarding Staad RCDC Slab Design

    Staad Pro to Staad RCDC Slab Design from imported Staad Pro file Hello Sir, I just want to know what's the exact solution on my problem Procedure Followed: 1)Created Line plan reference nodes in Staad Pro 2)Created Quadrilateral Plates for each…
  • How to model Connectivity between Raft Footing and Wall in Staad?

    Good Everybody, I am Modeling a Circular Digester tank of 318Million Litters per Day , I have a doubt how to model the connection between the wall and raft footing. this how I modeled the Raft is 600mm thk and the wall is 350mm thk, I have modeled…