pproach of estimating wind loads using design codes such as ASCE7-05.
B) Hiring a wind expert to construct a physical model and and calculate wind pressures measured directly from a wind tunnel test.
A) will allow you to derive a site specific wind design pressure based on the height of the building, surface roughness, site location etc. Typically you then multiply this pressure by an appropriate co-efficent in the code for a given building shape.
The other atypical method it to use numerical approaches such as CFD. This approach is not yet accepted due to nuances such as of surface roughness.
Building deflection is again subjective. Doing a modal analysis and getting an idea of the frequency is better. You can increase the frequency by playing about with the building stiffness.
You need to modify the stiffness of the building to get the deflection down. i.e. play about with geometry, add extra members with stiffness, reduce weight, use material with higher elastic modulus etc
If you are getting a 7m deflection for a 400m building then I can right away that is way too soft. That is equivalent to 400m/7m or H/57. You want to be at least H/500 to H/1000 so aim for 80 to 40 mm.
Your wind load seems reasonable at 87 psf for that height of building
…
oks like all your GH components are disabled? I just tried baking the cone from my earlier code and using that but can't see anything at all.
OH! You had 'Display | Shaded Preview' disabled - why? Now I see that you have 80 X 55 'SFrames', which will be VERY SLOW. I never understood why you abandon 'PopGeo'? But that many points will be extremely slow either way. I won't wait that long.
You're making this way too hard for me, bobbi.
I said early on that it's best to work with a very low count until everything works properly. Solid unions are one of the ragged edges of Grasshopper; slow and prone to failure, depending on the complexity of the geometry (co-planar surfaces, etc.).
Good luck!
P.S. I can see two problems here:
Surface normal is in instead of out.
You didn't 'Cap Holes' on the lofted tubes so they aren't solid "Closed Breps".
I have no clue what you're doing. Do you? :)…
k on forum?
or
B) install from a networked location?
Second question.
If you download from link do you:
A) read the post because you want to see what changes have occurred?
or
B) ignore the post as you are too excited to get the latest version up and running?
Third question.
When confronted by a demanding LOL cat telling you to update software do you:
A) nod approvingly and think "I must do that"?
or
B) freak out and get a sudden urge to eat cheeseburgers?
In all seriousness question three can be omitted.
EDIT: 80 views and only two posters! (thank you Simone and Luis).
I am actually interested in the results
SOLUTION TO DLL ERROR: install this …
Added by Danny Boyes at 3:32am on October 25, 2011
next level.
This Parametric Design course will provide the participants with the necessary knowledge and ability to use Grasshopper, a free visual programming plugin in Rhinoceros; you will be guided through a series of hands-on exercises that highlight NURBS modeling and its concepts. We will introduce Grasshopper as a graphical algorithm editor tightly integrated with Rhino’s 3D modeling tools. You will also learn how Rhino is used to render models for visualization, translate 3D models for prototyping, and export 3D models into 2D CAD or graphics programs.
English is the course main language.
Location: Düsseldorf city center
Registration and buying Tickets
www.digitalparametrics.eventbrite.de
Course Calendar:
4 Days 6 hours each
Total duration 24h
2 weekends
Date:
Sat. 17 - Sun. 18 June
Sat. 24 - Sun. 25 June
10:00 - 17:00
Getting Started in Rhino. 2 days (17 - 18 June)
Getting Started in Grasshopper. 2 days (24 - 25 June)
-----------------------------------------------------------------------
Participants will be given a certificate of participation at the end of the course.
-----------------------------------------------------------------------
Course fees:
Professionals: 600€ (excl. MwSt.) Students: 500€ (excl. MwSt.) Students need to provide: Copy of current student ID or proof of student enrollment at University/School.
Group discounts:
Group of 3 professionals: 3x500 = 1500€ (excl. MwSt.)
Group of 3 Students: 3x400 = 1200€ (excl. MwSt.)
Participants are kindly asked to bring their own laptops and have pre-installed Rhino + Grasshopper.
Useful Resources:
Rhinoceros Installation (90 days full version trial available): http://www.rhino3d.com/download
Rhinoceros for Mac (includes Grasshopper) http://www.rhino3d.com/download/rhino-for-mac/5/wip
Grasshopper Free Installation: http://www.grasshopper3d.com/page/download-1
Grasshopper Free Plugins: http://www.food4rhino.com/app/lunchbox http://www.giuliopiacentino.com/weaverbird
Main Tutor:
Rihan
M.A. Dipl.Ing. Architect
Architect at RKW Architektur + Düsseldorf
For any questions about the course, please email: info@immersive-studio.com…
ll geometry.
The difference with programs like Inventor is that they are made for production, regardless of the fabrication method. I won't go into detail about that, and instead focus on the modeling process.
In this little model, the starting point actually is a bit obvious, the foundation.
The only contents in the 3dm file are 27 lines. These indicate the location of each footing, and the direction of the tilt of each column. Everything else is defined in GH with the use of numbers as input parameters.
Needless to say, instead of those lines you could obviously generate lines and control the number of columns and panels, hence establish their layout, with any algorithmic or non-algorithmic criteria you please. That marks a major difference between GH and Inventor.
You can generate geometry with Inventor via scripting/customization (beyond iLogic), with transient graphics for visual feedback similar to GH's red-default previews. However Inventor's modeling functions are not set to input and output data trees. I won't go into detail on that, but suffice to say that the data tree associativity of GH was for me the first major difference I noticed. I've used other apps with node diagram interfaces like digital fusion for non-linear video editing since the late 90's, so the canvas did not call my attention when I first started using GH.
Anyways, here's a screen capture of the foundational lines:
In the first group of components, the centerlines of the rear columns are modeled:
And the locations in elevation for connection points are set. Those elevations were just numbers I copied from Excel, but you can obviously control that any way you please. I was just trying to model this quickly.
The same was done for the rear columns:
The above, believe it or not, took me the first 5 hours to get.
Here's a screen capture of what the model and definition looked like after 4 hours, not much:
If you're interested, next post I can get into the sketching part you mentioned, which is a bit cumbersome with GH, but not really.
I wouldn't say that using GH to do this little model was cumbersome, it just needed some thinking at the beginning. You do similar initial thinking when working with a feature-based modeler.…
Added by Santiago Diaz at 12:44am on February 24, 2011
unity in Ukraine, which is orientated to contemporary architecture.
The results of CANactions will be published in ACC magazine (link), on the web-sites of “Architectural club” (link), AB "ZOTOV&CO" (www.zotov.com.ua),
Theme
Theme of CANactions 2009 is emergent design techniques.
This theme could include following architectural branches as Digital design, sustainable architecture and other sectors, which by the participants’ opinions, could be EMERGENT.???
Any architectural projects made earlier of specially for the CANactions’09 are allowed for submission.
Presentation
All the projects will be submitted in two phases:
Phase 1 – selection of 10-15 participants of CANactions.
Project has to be sent by e-mail to: (__) in PDF (not less then 300 dpi, not more then 10 Mb).
Phase 2 –the CANactions participants prepare 15-20 min presentation of their projects (screen projector, microphone) and materials for the exhibition in House of Architect, Kyiv. The project has to be presented by author. -> exhibition is the first architecture biennale
Presentation requirements: file should be composed in PDF format on A0 sheets, placed horizontal (not more then 1 sheets). This file should contain sufficient amount of the presentation graphic material, including text explanation up to 300 words.
The raster images should have printing definition not less then 300 dpi. It’s recommended to avoid solid black fillings, because the projects will be printed on ink-jet printer.
The presentation requirements could be changed after phase 1 results.
The presentation materials should be made in Ukrainian (or Russian) and English. Verbal part can be presented in any language.
Tarek Naga, Naga Studio, Los Angeles / USA (I can contact him - he will do it for free)
Awards
DIA (Dessau Institute of Architecture), Germany gives a prize: certificate for the education for 1 (2) semesters of Master-program in DIA for students and young architects (up to 30 years) from Ukraine. The decision about the prize winners will be made by selection board.
Guests presentations
- Daniel da Rocha DIA /Germany/ (flights, accommodation?). Theme: (scripting???)
- Aleksandr Kalachev DIA /Riussian Federation/, Tudor Cosmatu DIA /Romania/, Irina Bogdan DIA /Romania/ - "Parametrically Defined Urban Patterns".
- Grygorii Zotov DIA /Ukraine/ - “The Multicultural Columbarium”.
- Armen Menendian /USA/ - "Blending Parametric Methods With Traditional Design:
"The Danish Pavilion at Shanghai EXPO 2010".
Exhibitions
1. Projects of 10 (15) CANactions participants
2. other projects: Zotov+Co
Bollinger+Grohmann - structural eng.
the very many
C-Space Pavillon / alvin huang
ala _ amanda levete studio
anOtherArchitect
student work, Charles Walker, AA Unit Pavillon
Event schedule
Phase 1: 01.07.2009 – start of the CANactions 2009 and beginning of projects submission.
16.08.2009 - dead-line of the project submission of phase 1.
Phase 2: 17.08.2009 – announcement of the CANactions 2009 participants.
30.08.2009 – dead-line of submission of the CANactions 2009 exhibition materials.
14-26.09.2009 – exhibition of the CANactions 2009 projects in House of Architect, Kyiv.
25-26.09.2009 – CANactions 2009.
26.09.2009 - finnissage / announcement of competition winners for DIA study
Contacts: canactions2009@gmail.com…
Added by Grisha Zotov at 6:32am on August 10, 2009
ce issue with Rhino and shouldn't make an issue with EnergyPlus but just to have cleaner geometries, I untrimmed base surfaces so zones are closed brep now.
I also noticed that when you are adding multiple openings to a surface, the surface doesn't show-up in the output of createHBZoneFromHBSurfaces. The surfaces are there though and show up once you explode the zone! Again should be a tolerance issue for join. I need to take a closer look to both of these.
Also, in a number of the zones you had wall surfaces connected to createZoneFromHBSurfaces both before and after adding glazing. I removed parent surfaces so you don't end up having duplicate surfaces.
Back to adjacency which was your question, the issue happens since you have couple of zones with the same name so component was assuming them to be the same zone so it wouldn't solve the adjacency (Yes! it shouldn't. That was a bug which is fixed now). I changed the names and now it should find the surfaces that you are looking for.
Moreover, once you solve the adjacency, next solveAdjacency won't overwrite the BC unless you set remCurrentAdj to True.
Mostapha…
oCommonSDK, I modified a working C# component that does something similar (ReduceMesh, written by Andrew Heumann). Both scripts are attached.
Aside from changing the component name and eliminating the P parameter, I made two modifications to the script:1) changed line 87 from private void RunScript(Mesh M, double P, ref object A) to: private void RunScript(Mesh M, ref object A)2) changed line 93 from: Rhino.RhinoApp.RunScript("_-ReduceMesh _ReductionPercentage " + Convert.ToString(P) + " _Enter", false); to: Rhino.RhinoApp.RunScript("_-MatchMeshEdge " + " _Enter", false);When I run the ReduceMesh component, the mesh object I feed it gets baked, the ReduceMesh command is run, the temporary object is deleted, and the reduced mesh result is returned. (Thanks, Andrew).When I run the MatchMeshEdge component, the mesh object I feed it is baked, the MatchMeshEdge command is run, but the temporary object is not deleted and no result is returned. The runtime error reads: "Sequence contains no elements (line 0)". I have a feeling that the command line string I am handing to RunScript is incomplete. When I enter it manually on the Rhino command line I see that it wants a mesh and three parameters. Of course I can hit Enter to accept the default values, but when you invoke a command through RunScript do you have to supply all parameters regardless? Also, where would I find details on the argument types that the command wants? For example, the last parameter reads "RatchetMode=On" or "RatchetMode=Off". How do I know if the type is Bool or the literal string "On" or "Off"?I am a complete novice at this so any help you can provide would be greatly appreciated! …
correct:
- the right value in the 0. path {0;77} is the smallest one.
- right value in the 1. path {0;78} is the value which is closest to the chosen value in the preceding path
- ..and so on for {0;79} and {0;80}
but when the paths change their first level, the iteration should start from the beginning:
- right value in the 4. path {1;32} is the smallest one.
- right value in the 5. path {1;33} is the closest to the chosen one in {1;32}.
- right value in the 5. path {1;34} is the closest to the chosen one in {1;33}.
..to be continued.
..this is, what I want to achive in the VB code, I implemented at the beginning of the discussion.
..and this is how I designed the input-parameter of the VB-element:
if someone could help me .. super-great!
…
Mac due to its versatility , but given this new laptop will be using mainly on Rhino, GH , i have some doubts whether to switch to a window based laptop.
I have a look at some high-end window laptops, Dell Alienware for example, with same specs as MBP and found the price are even more expensive than MBP , about 10-15 %.
With the new Rhino 5 is coming , will Bootcamp be good and efficient enough to run Rhino, GH and some rendering programs?
From my experience i find Rhino and Gh run smoothly on Bootcamp , but never run those programs on window based laptop myself , it's impossible for me to know the differences.
Some say BootCamp only deliver 80% performance of the program , if it's true i would really consider switching to window based laptop.
Any suggestions?
and if you suggest me to switch , what brand should i go for ?
Thank you,
…