The joys of archaic construction..... This was a few years ago, but I think the solution here was to treat this akin to FC1166 with 3000WT since it was going to live under an apartment sink chase. The obvious deviation being brick, old growth timber and the opening size not adhering to the system parameters. #3M #firestop #firestopping #firesafety #lifesafety #continuingeducation #constructioneducation #construction #buildinginnovation #buildbetter #buildsmart #passivefireprotection #codeenforcement #buildingcodes #firemarshal #buildinginspections #contractoreducation #constructionmaterials #buildingmaterials #kcmo #inspectors #codesinspectors #firemashals
Travis Livengood’s Post
More Relevant Posts
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A look into foundation construction at Smith Middle School! Forms are in place for pier construction, and reinforcing steel is extending from the foundations to tie into the masonry block. #SmartResultsFast #PierConstruction #ReinforcingSteel #CivilEngineering
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The author of this document identifies a number of concerns that ring very true about decision making and lack of qualified supervision on construction sites. Sadly the role of the Resident Engineer is long gone, and all too often design information is indeed provided to Contractors who never refer to the Engineers again. Fundamentally this bridge is unusually designed: the Architectural concept being a cable-stayed bridge which would have slender light weight deck construction; being translated into a concrete truss with a tower and steel tubes for decoration purpose only was an immediate recipe for disaster. No doubt the decision to change from the Architect concept was driven by cost and a belief that by precasting a truss it could be installed in a single operation (probably with an overnight road closure). From that moment on the Engineer would have been under constant pressure to reduce member sizes to maintain the slender appearance of the bridge. However, the decision to post tension the diagonal strut, which is clearly a compression member that was cracked and undergoing compressive failure was in my option a decision of criminal incompetence. It is easy to see what went wrong in hindsight, but so often difficult to be the one who makes a stand against the wave of Parties who all think they know best and sadly only those directly involved will have learned the lessons. Well worth 10-mins to read!
Lessons learned from the 2018 Florida bridge collapse during construction This was a bridge of an unusual design and was being constructed in an unusual manner. The main 53m pre-stressed pre-cast concrete span truss was in position when cracks appeared at a node and over a period of almost three weeks they visibly worsened until collapse occurred.
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And since we're already talking depth of seal, lets look at why it is so difficult to create with diagonal openings. Within a solid tilt up concrete wall, depth of seal with proper annular space is not terribly difficult to create as you have the entire opening to work with. But say the pipe is a few degrees off of the cored opening and create point of contact or zero annular space? What does that look like? And what about gyp walls? How do we treat that? With a sleeved opening to give us something to bond to in the wall. #3m #internationalfirestopcouncil #IFC #firestop #firestopping #firesafety #lifesafety #continuingeducation #constructioneducation #construction #buildinginnovation #buildbetter #buildsmart #passivefireprotection #codeenforcement #buildingcodes #firemarshal #buildinginspections #contractoreducation #constructionmaterials #buildingmaterials #kcmo #inspectors #codesinspectors #firemashals
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Author of Computational Engineering | Customer Service lead at Oasys software | IStructE Yorkshire region chair | Structural Application Specialist | dyslexic best-selling author | stuttering award-winning public speaker
This is a report that very engineer needs to read, whether they design bridges or not. #structuralengineering #civilengineering #constructionsafety #bridgeengineering
Lessons learned from the 2018 Florida bridge collapse during construction This was a bridge of an unusual design and was being constructed in an unusual manner. The main 53m pre-stressed pre-cast concrete span truss was in position when cracks appeared at a node and over a period of almost three weeks they visibly worsened until collapse occurred.
Lessons learned from the 2018 Florida bridge collapse during construction
cross-safety.org
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• Construction stages analysis is as important as the analysis for the permanent structure. • If the limitation for the crack width is exceeded within three weeks, this a good sign of a brittle failure. • Ductility is a key property for a good structural system. Every civil engineer need to read this report.
Lessons learned from the 2018 Florida bridge collapse during construction This was a bridge of an unusual design and was being constructed in an unusual manner. The main 53m pre-stressed pre-cast concrete span truss was in position when cracks appeared at a node and over a period of almost three weeks they visibly worsened until collapse occurred.
Lessons learned from the 2018 Florida bridge collapse during construction
cross-safety.org
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Ridge: The pinnacle of a pre-engineered building where opposing roof slopes meet, akin to a 'V' peak. It's a vital structural link connecting rafters, bearing the roof deck, and extra loads such as snow or wind. #RoofStructure #BuildingDesign #PreEngineeredBuildings #Construction #StructuralEngineering #RidgeElement #RoofDesign
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How about a system that I rarely consider? I never think to look at this field condition when walking apartment complexes. The junction between the dryer vent box and the flue or vent into the wall cavity. Meet WL7182 #3m #firestop #firestopping #firesafety #lifesafety #continuingeducation #constructioneducation #construction #buildinginnovation #buildbetter #buildsmart #passivefireprotection #codeenforcement #buildingcodes #firemarshal #buildinginspections #contractoreducation #constructionmaterials #buildingmaterials #kcmo #inspectors #codesinspectors #firemashals
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Galvanized Expansion Ties are widely used in the masonry construction industry, especially in situations where controlled and contraction are required. https://buff.ly/3Wz2n0f #brickexpansionties #expansionties #expansionwallties #masonryexpansionties #expansionjointbrickties
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Heck, while we're talking about firestop install from one side of the wall, why not look at single sided access wall joints? Here are just a few examples of the breed. These tend to pop up a lot in additions and TI projects. #3m #internationalfirestopcouncil #IFC #firestop #firestopping #firesafety #lifesafety #continuingeducation #constructioneducation #construction #buildinginnovation #buildbetter #buildsmart #passivefireprotection #codeenforcement #buildingcodes #firemarshal #buildinginspections #contractoreducation #constructionmaterials #buildingmaterials #kcmo #inspectors #codesinspectors #firemashals
