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Dear ALL, As the following image depicts is it compulsory to weld the stems of TT prefabricated slabs to the main girder corbel locations, if it is mandatory by code which section of code (e.g. PCI) exactly governs for that ?

Hi, I need to model the FRP laminates + FRP wrap elements for RC columns and beams with software for design and retrofitting purposes. Have any of You done such thing up to now, even if it is not how would you go with software or with manual hand calculation?

Dear ALL, Is there any speicific info related especially with basements storage goods in NFPA for wet type sprinklers, such as distance to smoke detectors and max height which can be stored in basements ?

dear ALL, Let's assume that we have the same square meter of area to be cooled(e.g. 1200m2) using the same heating cooling loads and design principles will the VRV system or using one outter chiller model be more efficient in terms of cost? ]

Dear ALL, When I perform the Time History Analysis in SP20000 v25 I noticed that hinge results are not displayed and not even calculated. I use the Modal for solution method for equation solution(FNA) and if I use Direct Integration it takes to much time for the problem solution sometimes it...

Dear ALL, How we are supposed to determine the beam height if ve have the beam which has variable height in longitidual direction. This directly will affect the D/H ratio which is one of the governing case for smoke detection installations, but I couldn't found in elaboration on that in NFPA...

Dear ALL, I'd like to know if any of you performed or experienced retrofitting of existing space frame systems where it analytically carry the axial loads only. What is method of retrofitting ? CFRP can be used in such case or do we have to consider the total replacement of non-conforming...

Dear ALL, What is the measuring tools for displacement and settlement control of structural elements in buildings. Say that if there is any settlement in the floor slab or beam then how we are suppoosed to measure it. I remember that we used the glass based settlement gauges for that purpose...

Dear All, I have the following canopy structure which is supported by HEB 400 column only on one side and canilever beam(HEA240) is 6mt in transversial direction, fixed to column at 6mt and column extends to 9 mt for upper 2xbracing support(114*4mm tube section), overturning moments are in...

I have difficulties when deciding whether the obtained soil pressure values are compression or tension under the foundation, Definition of soil springs under the footing is compression only, bottom and inward defined, For quick check I test the values of soil pressure obtained for dead loads...

Dear ALL, I'm getting for HEB 400 column base point of M2 = 300kNm bending moment V2 = 165kN shear and N = -30kN axial force no matter what I do I'm failing to solve it, base plate is 700mmX700mm with M20 anchor Class 10.9 what will be your suggestion, Your guidance will be appreciated.

DEar ALL, I'd like to know how can I model accurately with software a perforated column and horizontal beams made up from cold formed steel, I already have an idea in my mind how to start and model itt but I'd like to hear also from colleagues how would be their approach to solve such problem...

Dear All, I have to design a perforated(which has some specific hole pattern in web and at the flanches) cold formed column intended to be used in rack system, My initial entry point would be to apply reduction coefficient depending on ratio of holes in the cross section for axial stiffness...

Dear All, In tank foundation ( approx. 200m3 pressure vessel ) consultant is requiring the bars overlapping in foundation to be in staggered forms, surely staggering the rebars provide benefits but I just want to know is compulsory or not ? Furthermore, I would like to know on which code or...

I need to design structural shear wall for explosion of boiler room structure, in structure will be: 1. Thermal Oil Heater Operating pressure 6 bar, design pressure 15bar, oil flow rate 64m3/h ) Vertical 698 KW 2. Expansion Tank Capacity : 3000 liter Operating...

Dear All, My Client is planning to install 40m3 vertical ng operated boiler, 2 units of storage tank where each has 3000 litre capacity for oil storage. As per the nfpa with which design number must we follow for.designing such boiler room? Aside from that is it compulsory to have foam based...

DEar All, Does anyone knows what is the thermal conductivity coefficient of normal, light weight and fine aggregated concrete material? I've seen that it is taken as 2,5W/(m*K) in some calculations in from technical books but I'm unsure about that.

Dear Community Members, Supposed that I have 180cm of triangular I-shaped prestressed beam should be viable to pass a span of 30mt with that, of course with prestressed strands?

Dear Community, What design & detailing software do you use or recommend for the design of pre-cast / pre-stressed single and multi-storey industrial structures?

Dear ALL, I'm a structural engineer and I've been asked to provide the threshold value of earthquake to be feeded to the earthquake detection system. I will appreciate the hepl of those who has previous experience on that. As you know in order to simulate the earthquake and forces excited on...