[GSBN] Load-bearing straw bale idea
enga at thelokeys.net
Fri Jun 23 23:30:18 CDT 2017
Bruce and Lance suggested exactly what at first glance appears the obvious better design strategy. One good solid post sized to support the roof load instead of all that extra timber attempting to do a job it probably won’t.
enga at thelokeys.net
> On 23 Jun. 2017, at 6:39 pm, Bruce EBNet <bruce at ecobuildnetwork.org> wrote:
> Just put a post under the ridge beam
> or there will be weeping, and knashing of teeth
> Bruce King
> (415) 987-7271
> bruce at ecobuildnetwork.org <mailto:bruce at ecobuildnetwork.org>
>> On Jun 23, 2017, at 5:30 PM, Lance Kairl <sabale at bigpond.com <mailto:sabale at bigpond.com>> wrote:
>> HI all,
>> While the idea looks fine , it’s the concentration of load ( weight ) onto the two very top bales ( one each side) that is concerning.
>> Effectively ½ the weight of the roof and any wind loads etc is distributed thru the one bale, yes in a slight triangulation , but basically creating a point load on the top bale.
>> Raseing concerns that the one bale , then the 2 bales below will compress ( initially and over time ) distorting the roof structure and pushing the other walls outward..
>> The amount of timber used in the wooden panel horizontals , may be as much as a single post supporting the ridge beam,
>> And resulting in a more modified loadbearing type of structure.
>> There are engineers out there that may like it more than me ( and mathematically like it ) ,
>> But I feel the approach is flawed.
>> Cheer s Lance
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