What's the proper way to connect an element like this:
I was thinking hurricane ties but was wondering if there was a better connector.
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The answer ultimately depends upon your local climate/weather (heavy wind loading?), but generally the way to handle that situation is to span the joists at the top plate with a "rim joist", then toenail all the joists to the top plate.
BTW... you might want your top plate to extend over the top of that corner post instead of nailing to its side.
SketchUp's neat stuff, isn't it? 8)
Most US building codes require forces to be calculated in accordance with ASCE-7: Minimum Design Loads for Buildings and Other Structures. Some may offer prescriptive design requirements, these tend not to include proprietary engineered products such as specific Simpson Anchors.
The Simpson H2.5A can make framing easier. However, it may or may not be suitable for the specific application. Because it is an Engineered product, proper Engineering analysis of the structure is necessary. From the H2.5A Product page:
Considerations for Hurricane Tie Selection 1. What is the uplift load? 2. What is the parallel-to-plate load? 3. What is the perpendicular-to-plate load? 4. What is the species of wood used for the rafter and the top plates? (Select the load table based on the lowest performing species of wood.) 5. Will the hurricane tie be nailed into both top plates or the upper top plate only? 6. What load or loads will the hurricane tie be taking?* 7. Select hurricane tie based on performance, application, installed cost and ease of installation. === * When a connector is loaded simultaneously in more than one direction, the allowable load must be evaluated as shown here. For all connectors use the following equation: Design Uplift/Allowable Uplift + Design Lateral Parallel to Plate / Allowable Lateral Parallel to Plate + Design Lateral Perpendicular to Plate / Allowable Lateral Perpendicular to Plate < 1.0. The three terms in the unity equation are due to possible directions that exist to generate force on a hurricane tie. The actual number of terms used in the equation for each condition is dependant on designer’s method of calculating wind forces and the utilization of the tie in the structural system. As an alternate, certain roof to wall connectors (embedded truss anchors, seismic and hurricane ties (on this page), and twist straps) can be evaluated using the following: The design load in each direction shall not exceed the published allowable load in that direction multiplied by 0.75.