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I used to enjoy a game called game developer simulator and I do wonder if modern day software development coukd start there instead of with a committee of diluted opinions tied to a budget irrelevant to the budget of software developer beyond a career or two In a sense star citizen may be the best managed game of all time Sometimes I wonder how experts in a technical field play a mobile bridge building game with toy…
The homepage of the "Norwegian Safety Investigation Authority" is much more informative and the 2 documents have interesting photos, e.g. closeups of where the wood broke. https://www.nsia.no/Road/Investigations/22-441 It does not state why they conclude the cause was overload, only that "Uncovering the technical causal factors for the collapse of the Tretten bridge has been challenging. The expert group has worked i…
The Norwegian Safety Investigation Authority seems to agree. https://www.nsia.no/Road/Investigations/22-441?iid=35881&pid...:
“Checked according to the recommended calculation methods in today's current regulations for the design of wooden structures, the degree of utilization in the connections on the relevant diagonals was around 200%. That is to say, the capacity of these connections was half of what they should have been when calculating the bridge's failure limit state, where safety factors for both loads and strength of materials were taken into account”
The homepage of the "Norwegian Safety Investigation Authority" is much more informative and the 2 documents have interesting photos, e.g. closeups of where the wood broke. https://www.nsia.no/Road/Investigations/22-441 It does not state why they conclude the cause was overload, only that "Uncovering the technical causal factors for the collapse of the Tretten bridge has been challenging. The expert group has worked i…
There are a number of bridges where I live that cannot handle a truck with trailer. They have large signs warning what the maximum load is. They are mostly on rarely used roads in farm country (as in a handful of cars per week cross), so a truck with lime is one of the more likely potential loads, but of course the local farmers know that bridge can't handle the weight of a truck and plan their deliveries to take a d…
Earlier quoted context omitted.
There are a number of bridges where I live that cannot handle a truck with trailer. They have large signs warning what the maximum load is. They are mostly on rarely used roads in farm country (as in a handful of cars per week cross), so a truck with lime is one of the more likely potential loads, but of course the local farmers know that bridge can't handle the weight of a truck and plan their deliveries to take a d…
The problem comes when those type of bridges don't collapse the first time someone overloads them; then people start using it because "eh it works" and eventually it fails.
The homepage of the "Norwegian Safety Investigation Authority" is much more informative and the 2 documents have interesting photos, e.g. closeups of where the wood broke. https://www.nsia.no/Road/Investigations/22-441 It does not state why they conclude the cause was overload, only that "Uncovering the technical causal factors for the collapse of the Tretten bridge has been challenging. The expert group has worked i…
Earlier quoted context omitted.
The problem comes when those type of bridges don't collapse the first time someone overloads them; then people start using it because "eh it works" and eventually it fails.
Is there some well established way to make some very visible but not structural part of a bridge to collapse after an overload, to scare people and make them report the problem?
Often these "car only" country bridges are just some large wooden beams over a creek; even a simple concrete culvert replacement would be truck-proof.
Some of them do things like this: https://www.alamy.com/stock-photo-small-car-suv-crossing-the...
Earlier quoted context omitted.
The problem comes when those type of bridges don't collapse the first time someone overloads them; then people start using it because "eh it works" and eventually it fails.
Is there some well established way to make some very visible but not structural part of a bridge to collapse after an overload, to scare people and make them report the problem?
You don't say...