Hi Massimo great article on wikki.
May I suggest the following as a more standardised way of using the qto based on existing IFC Pset properties
For elements as slabs beams columns etc that are structural elements we can Use the Pset_ConcreteElementGeneral to populate the ReinforcementAreaRatio ** and as such keep it as much as posssible within the existing standardised properties of the schema. If I am not mistaken, the variable **Beam Rebar Weight that you are using in your example should be substituted by **ReinforcementAreaRatio ** in the /ifc5d/qto.py file, right?
Well @Dimitris i think that using the standard pset value (if available) is of course better.
Also, the ReinforcementAreaRatio seems to me that has a different meaning with Beam Rebar Weight (reinforcement area ratio is a ratio between steel area and concrete area, beam rebar weight is the steel weight).
@Massimo said:
Well @Dimitris i think that using the standard pset value (if available) is of course better.
Also, the ReinforcementAreaRatio seems to me that has a different meaning with Beam Rebar Weight (reinforcement area ratio is a ratio between steel area and concrete area, beam rebar weight is the steel weight).
You are right, apologies for the miss, kindly use ReinforcementVolumeRatio
Of course it is possible also to use an object pset property to perform the calculation so ReinforcementVolumeRatio could be used instead of the coefficient described in the article
You are right, apologies for the miss, kindly use ReinforcementVolumeRatio
Thank you for pointing,
In my experience sometimes slabs have a kg/m2 since area is the unit of that work, but not always.
As you and @Massimo indicated beams and columns have kg/m3 ratio
I'm very happy about this feature
Thanks
You are right, apologies for the miss, kindly use ReinforcementVolumeRatio
Thank you for pointing,
In my experience sometimes slabs have a kg/m2 since area is the unit of that work, but not always.
As you and @Massimo indicated beams and columns have kg/m3 ratio
I'm very happy about this feature
Thanks
Hi @steverugi ,
I've come across this concept of Kgr/m2 mostly for load bearing screeds and non structural concrete platforms (subbase etc), haven't come across a BoQ in which the Structural Elements where quoted as Kgr/m2 .
sure @Dimitris, methods also change based on their locale , concrete slab on grade here in Ghana sometimes has just a single or double mesh, which typically has a kg/m2 weight, and the steel/concrete ratio follows accordingly.
However, what is important to me is @Massimo 's method that, while waiting for future new implementations in the UI, it allows users to create custom calculations, which are much needed in the quantity take-off daily routine, at least in my experience.
cheers
Comments
I have managed to add a section on wiki about how to create custom ruleset in bonsai
https://wiki.osarch.org/index.php?title=BlenderBIM_Add-on/Bonsai_QuantityTakeoff
Feel free to improve it, cheers
Hi Massimo great article on wikki.
May I suggest the following as a more standardised way of using the qto based on existing IFC Pset properties
For elements as slabs beams columns etc that are structural elements we can Use the Pset_ConcreteElementGeneral to populate the ReinforcementAreaRatio ** and as such keep it as much as posssible within the existing standardised properties of the schema. If I am not mistaken, the variable **Beam Rebar Weight that you are using in your example should be substituted by **ReinforcementAreaRatio ** in the /ifc5d/qto.py file, right?
Let me know what you think
Cheers,
Well @Dimitris i think that using the standard pset value (if available) is of course better.
Also, the ReinforcementAreaRatio seems to me that has a different meaning with Beam Rebar Weight (reinforcement area ratio is a ratio between steel area and concrete area, beam rebar weight is the steel weight).
You are right, apologies for the miss, kindly use ReinforcementVolumeRatio
Thank you for pointing,
Of course it is possible also to use an object pset property to perform the calculation so ReinforcementVolumeRatio could be used instead of the coefficient described in the article
@Dimitris
In my experience sometimes slabs have a kg/m2 since area is the unit of that work, but not always.
As you and @Massimo indicated beams and columns have kg/m3 ratio
I'm very happy about this feature
Thanks
Hi @steverugi ,
I've come across this concept of Kgr/m2 mostly for load bearing screeds and non structural concrete platforms (subbase etc), haven't come across a BoQ in which the Structural Elements where quoted as Kgr/m2 .
sure @Dimitris, methods also change based on their locale , concrete slab on grade here in Ghana sometimes has just a single or double mesh, which typically has a kg/m2 weight, and the steel/concrete ratio follows accordingly.
However, what is important to me is @Massimo 's method that, while waiting for future new implementations in the UI, it allows users to create custom calculations, which are much needed in the quantity take-off daily routine, at least in my experience.
cheers