Recently i did a garage design, where i gave a strong wall for the garage wall because of garage opening. Later client came back to me telling that is is over engineered and asking me to change it.
The client had his Engineer modify from strong walls to replacing them with Hdu hold downs shown...
So, I'm doing a plan checker revision today and there is a comment to "Indicate how the strap will be installed when the end length is longer than the beam depth".
This is the detail he is refering to. I don't know how to indcate the strap to be installed when end length is longer? Can any one...
I have this pocket connection where L angle is connected to HSS Column. I have trouble transfering the loads on top of the pocket( L Angle). Is there way to cut the L angle from both sides?
I have a 2 ft cantilever floor in my ADU. How can i transfer shear loads from that cantilever wall to ground floor shear wall. We have a 2 ft overset. Thanks
Hi. I need to design shear walls for a 2 story building. My questions is how to design the shear walls near stairs. Can we put the shear line as shown in the image for the ground floor. If we put that then how i going to design the footings? Do i need to put two footings there? Outer one to...
Hi. I want to determine the fly ash content of some cement samples that i have. I don't have the chemical composition of it. But i can get samples with and without the fly ash content. What is the best way to find out the fly ash content? I have and idea to compare the cement samples with and...
Hi. I need some guidance how to prepare a fastener schedule for additional bracings which we are going to install to a existing roof for strengthening. As you can see in this image, some of rafters has the diagonal bracing but some doesn't. I need to prepare a detail for the new diagonal...
Hi. I have to assess an existing house which proposed to have 2 basements. Is there any idea how to do the seismic load calculation for the basement walls? Retaining Walls and wood walls? Any guidance. Thanks
Hi. I'm studying Equest modelling for ADUs in California. Can anyone provide me some sample work on how to do it? I get lot of errors when running the compliance report for T24, still i'm on the beginning process of modelling. Can any one share me a sample ADU equest Model to refer. Thank you
I'm designing a dormer addition for a existing house. The existing roof has 2x4@24" spacing with a ridge board. Dormer Roof has to be 5/12 slope and the roof rafters will be removed where dormer comes.it is starting near to the ridge board. I suppose i need to add a ridge beam to support the...
I have a question about designing the connection to Rafter - Wall.
We need to design the connections to resist lateral, shear and uplift, and if we are using a ridge board then we need to install nails for the rafter ceiling connection also to resist the thrust.
To resist lateral...
https://res.cloudinary.com/engineering-com/image/upload/v1664794346/tips/EFA57626-46F8-4094-A512-A7C4779228BB_eybpen.webp I have attached a image of steel portal frame structure and a timber frame inside. How can i design the end holdowns for shear walls and keep the continuity of the lateral...
When we design a L Shape Building we need to design two diaphragms and need to connect them with straps to resist the lateral loads. I was unable to a specific code where shows how to design this strap and how to detail it on the drawings. Can anyone guide me how to design the connection between...
Hi. I have a problem, when modelling a floor in Risa Floor the infill beam angle wont change to horizontal or vertical. It just keeping at horizontal. Can someone help me out? Thanks
When i model a two storey building, one of shear lines exceed the allowable story drift value. There is a large opening in that shearline. Can anyone give me an guidance how to reduce the story drift on that shear line? If i add a Simpson strong wall, will that reduce the story drift on the...
I have a question about designing the heel joint on roof - wall connection. Do i need to design it for both lateral loading and uplift separately? and add nails and straps both to the connection?
I have several questions when placing the holdowns.
1.Do i need to place holdowns as shown in this picture if we have two shear walls in the same lines? or one side hold down sufficient?
2. Do i need to add timber posts, in corners and where ever holdowns are located or can i attach it to the...
