WebJan 10, 2024 · Providing a chord (like (2) 2x6 top chords) isn't going to change the strains in other elements of the diaphragm or dormers anyway. The total deformation of a diaphragm isn't affected by the chords all that much as a larger proportion of your diaphragm deformation is shear-based. The chord does nothing to reduce that. WebMay 26, 2015 · You're absolutely right, at the ridge or any other pitch break not only is the diaphragm discontinuous (unblocked diaphragm but the rafters or trusses are also "broken" at these locations. In the case of MPC wood trusses all of this load will be shouldered by the truss connector plates and the wood-to-wood contact of the chord …
Design Example 2 Flexible Diaphragm Design - ICC
WebA chord is a structural member along the boundary of a diaphragm that resists tension and compression forces. A collector is a struc- tural member that transmits diaphragm forces into shear walls or frames. Figure 2 depicts the overall function of chords and collectors. WebApr 13, 2024 · Yes, you have two different diaphragms and two different chord sets. what you can do is basically design the windward one for only the windward pressure and then the diaphragm for leeward forces. Check the book The Analysis of Irregular Shaped Structures and diphragms by terry malone. Reply To This Thread state of michigan privacy policy
Diaphragm (structural system) - Wikipedia
WebDiaphragm chord failures We are getting into some verification of existing buildings as we are making some significant changes to the lateral system and it got me thinking. Has anyone ever seen anything that resembles a diaphragm chord failure? WebMar 26, 2024 · This chapter discusses Section 12.10 of ASCE 7-16, which covers the computation of in-plane floor diaphragm forces, including collector and chord elements. It considers a 6-story office building located near Memphis, Tennessee. Diaphragm forces caused by both inertial and system effects are included. WebOn large diaphragms, it is common to vary the deck gauge and connection patterns across the roof as the shear forces change. Chord Forces The sidewall wind pressure creates bending moment in the roof. This moment can be calculated by assuming the roof as a simply supported beam between shear walls. state of michigan prisons list