The Megalith Movers Prehistoric Engineering
Blog 4th January 2015    With time on my hands over the Christmas and the new year period I have been thinking about the construction of the buttress frames. Although my natural inclination is to use traditional carpentry methods I am all to well aware that the ancient Egyptians didn't have the technology to produce steel bolts and nuts, etc. While they could have used wooden dowels as an adequate alternative I am thinking that for such a temporary structure it is more likely that they would have used rope lashings and bindings.  While the obelisk is lying at it's present angle we have a perfect opportunity to test a buttress frame constructed in this manner. We can set the frame in place while having the safety factor of both the fail-safe tower and the crib. If we do this while the dead men are still taking all the weight we can set the frame in place and we can arrange the packing on the fail-safe and also on the crib to allow the obelisk to settle back no more than say 1 inch as we progressively remove the dead men, an action that can easily be reversed at any time. If however, the buttress frame prevents the obelisk from settling back, then we will know that one frame will support the weight and the inclusion of several more frames will give us a great margin of safety.  Although I have little experience in the use of lashings and bindings, I have, over the years, gained a great deal of experience in the use of the simple Spanish windlass and it is this simple technique that will be the backbone of my proposed design for the buttress frames, which will in turn form the backbone for the whole support structure when it finally becomes incorporated with the bottom barn door.  We will use some of the 3 inch by 3 inch timbers we ordered for use in the crib, as we have decided we don't now need to build the crib as high as I thought, due to the new idea of lowering the contact point of the levers on the lifting timber. We will use 3 uprights arranged under the bottom barn door connected by horizontal timbers, this will all be held tightly together by Spanish windlasses which will squeeze the horizontal timbers between the uprights. Diagonal bracing timbers will then be included before each individual joint is held firmly together with Filipino lashings.  If this test is successful using one, two, or even three such frames arranged underneath and across the barn doors, then we will continue with this method, as we eventually expect to incorporate up to seven such frames during the first phase of this erection. This will give us all the safety we require. <<previous blog page next blog page >> To read & post comments click here return to top of this page

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