Hi Rahim (and all others)!


I have created this post to summarise the research I did on the spot for the TAKENAKA Crown Structure Demonstration.

Some pictures are stitched together as you can see. All of them you can click to see magnified and download if you need.

On the bottom of the page is a COMMENT field, where you can put your comment. We can discuss there, or yu can send me a message on Whatsapp.


Let’s start with a general picture of the structure:

DSC_5344 - DSC_5346

You can click on it and you will see all the anchor points for lower leafs (or petals). I marked them here:

DSC_5344 - DSC_5346 with arrows

As You can see, there are no anchors on the overhanged, “under-the-roof” side of the petals. On the bottom of the structure, there are 2 points, that we could use to re-direct the technitian, but it would be way too far to reach the surface:


The only way we could bring the operators closer to the surface of the structure is by installing the tentioned rope under the petal (horisontaly) using the anchors on the edges of petals.

Ok, now some more pictures of the leaf:

DSC_5337 - DSC_5338_fused

Access to the structure is via ladders and hatch (hatch is also used to access the top of the structure from the inside (2 long, vertical petals).

DSC_5345 DSC_5331 DSC_5307 DSC_5299 DSC_5292 DSC_5274

Some more views for the the lower petals:

DSC_5352 - DSC_5354


Now the top structure:

DSC_5320 - DSC_5322 DSC_5331 - DSC_5336 DSC_5348 - DSC_5351_fused

The anchors are running along the edge on the side and the top. The inside of the Petals is hollow.

DSC_5294 DSC_5330 DSC_5317 DSC_5316 DSC_5314 DSC_5311

The last anchor points inside are pretty far from the top edge, so I would suggest to bring a pole and tape, to clip the lanyard to the bolt (otherwise we would have to aid climb vertically to reach the top.

DSC_5364 - DSC_5365 DSC_5356 - DSC_5358

Some more pictures from all over the place, mainly anchor points:

DSC_5280 DSC_5315 DSC_5309 DSC_5308 DSC_5286 DSC_5284 DSC_5281

The plates are quite soft, easily bend. We need to bring stiff edge protectors (wood) to avoid damage.


If you have questions, please use the comment form below or Whatsapp me.