Have you ever wondered why the constructions collapse in the big earthquakes? They collapse because it is not possible to control the inelastic deformation during the rocking of the structure when there is a big earthquake. If we can control the deformation of the building in a strong earthquake then we will also control the large cracks that appear and are the cause of the collapse of the building and this is because the cause that creates these cracks is the inelastic deformation. But to control the deformation at least you should not create it by designing elastic structures. The elasticity does create seismic damping in small earthquakes and there is no damage to the structure, but in large earthquakes it is the reason that the structure easily passes into inelastic displacement and then to breakage. The right design is to build as rigid structures as possible with a diaphragm function. That is, constructions with large walls of reinforced concrete, or constructions entirely of reinforced concrete. These rigid constructions only have the problem of tipping moment. However, they do not suffer from cutting forces or bending. The overturning torque of the building creates overturning at its base and this is the reason why the construction loses ground support with the result that the most unsupported downward loads create torques in the opposite direction of this overturning torque of the structure. The result is that these two opposing moments create a shear failure in the weak sections above the doors and windows. This problem of total overturning of their base, presented by rigid structures excludes the large number of floors, because it increases their overturning momentum, I solved it by creating pre-tension + anchoring in the ground at all corners of the construction. The result is 0 Deformation 0 Base retraction 0 shear failures + plus increase of floors in prefabricated reinforced concrete, + cheaper and seismically shielded construction. The result in the experiment. https://www.youtube.com/watch?v=Q6og4VWFcGA&fbclid=IwAR0cCTVdpumYbRp4YaJzUZxj5RH-36RaYiLrYznXe3loCBufEYQEd3H_jE8
Dear Aparna.
The foundation ground must be very strong. That is why I say that I apply pre-tension to the cross-sections + anchoring to the ground. The mechanism and the method of anchoring that I use provide a strong foundation because they withstand upward and downward forces. This means that the foundation is supported by the anchoring mechanism.
Pre-tensioning is not applied between the building and the ground. If I applied this method the ground would recede I do not do this. There are two separate traction intensities. The first is applied between the foundation ground surface and the mechanism located at the depths of the drilling, and is applied to open the mechanism and create traction between the anchor and the slopes of the drilling. Then the drilling is filled with concrete and we have a pylon in the ground under the base. The second traction on the same tendon is made from the roof to introduce tensions in the cross section of the concrete.
Read here about the anchoring method.
Presentation PACKING MECHANISM - GROUND ANCHORING AND METHOD
Most earthquake-induced building damage, however, is a result of ground shaking. When the ground shakes at a building site, the building's foundations vibrate in a manner that's similar to the surrounding ground. Brittle elements tend to break and lose strength.
4 February MMXXI
HAVE YOU EVER WONDERED WHY CONSTRUCTIONS COLLAPSE DURING SIZABLE eArthQUAKES?
With my compliments...
Cordially...
ASJ
Dear Faraed Salman
Definitely the rigid element will fail before the elastic element. But the question is ... The rigid element will break first 1) because it is not elastic; or 2) because the flexible element recedes and all the load is received by the rigid element;
Dear Anthony St. John
There are many reasons why a large earthquake with duration destroys a structure. Do you want me to analyze them?
Thank you very much for your cordial compliments !!!
Your ideas are impressive. As you explain the method of construction it reminds me the way my father was explaining to me.
After being trained in Switzerland in the 1920's he introduced "beton armee" in Greece and applied it to the branches of the National Bank of Greece where he worked. The Thessaloniki branch was the ultimate challenge where the mammoth building was constructed virtually over water (then). Your detailed description confirms why my father's house was built like a fortress with very thick walls that have withstood earthquakes.
What would be a title to the video? it demonstrates something, but it is not clear what.
Congratulations and best wishes of many applications of your research.
We have placed on a table two columns, one column screwed on the table, and the other simply put on the table. If one shifts on the table, the unbolted column will be overthrown. The bolted column withstands the lateral loading. We do exactly the same in every column of a building to withstand more lateral earthquake loading. That is done, by simply screwing it to the ground. This pretension between the roof of the structure and the soil has been globally disclosed for the first time.
The horizontal earthquake load generates oscillation, and the result is that the upper plates shift more than the lower ones, the columns lose their eccentricity exerting a lifting force on the bases, as well as creating a twisting action in all of the nodes of the structure.
The ideal situation would be if one could construct a building framework where, during an earthquake, all the plates would shift by the same amplitude, at the ground without differing phases.
The research I have carried out resulted in just this. The method of the invention eliminates all these problems of deformation in the building construction applying compressive stresses in the cross sections of the walls with a mechanism and with the same mechanism a strong anchoring is applied to the foundation ground. Is a mechanism of smart deep ground anchorages.
The walls during the displacement of the structure receive torques (M), right forces (N) (compressive and tensile), and shear (Q)
Compressive stresses are imposed on the cross section of the walls to reduce shear failures.
The anchoring of all the sides of the walls (from the top level) with the foundation ground is done, in order to deflect, and to drive the forces of the earthquake in the ground, in order to reduce the moments at the nodes and the bending of the trunks of the bearing elements.
I basically built a deep concrete foundation, replacing the wide foundation, which has the privilege of using a mechanism, to apply permanent perimeter forces to the slopes of the drill, in order to create adhesion from the friction created on the surface of the slope and mechanism.
This type of foundation offers greater resistance to upward and downward loads.
Dear Hassan Izzeddin Sarsak
If the foundation is not stable then there is a method to make it stable using the anchoring mechanism. Read here. Presentation PACKING MECHANISM - GROUND ANCHORING AND METHOD
Dear Michael Issigonis
Thank you for your compliments and wishes. If you want to learn more about research read these two links Article The Ultimate Anti-Seismic System
Presentation DYNAMICS OF CONSTRUCTIONS RESEARCH
Congratulations Ioannis Lymperis, for your achievement... and for asking your interesting question!
Before two-three weeks I have read your interesting question and explanation, superficially. Only after two weeks when I got a raw idea, intuitively how can be made the substructure of the constructions to resist the effect of the earthquake (somewhat different of your)...
Now after reading your question and explanations it seems well that you are in a very good way... But do not foregate: every time can do the good in a better way!
My response to your question is simply: it seems a lot in the majority cases to build constructions that do not collapse in the big earthquakes because such buildings are very expensive and labor-intensive... Your question a topic is similar to my discussion:
https://www.researchgate.net/post/Exists-the-next-situation-when-an-outsider-researcher-who-has-achieved-a-very-encouraging-result-in-earthquake-forecasting-is-not-supported
which can be the same asked: Have you ever wondered why the big earthquakes are not predicted-forecasted?
Some responses two these questions have similar aspects.
Regards,
Laszlo
The same effect happens to buildings during an earthquake. If the earthquake vibrations push on a building at or near its natural frequency, it will begin to resonate, which causes the building to move with greater amplitude until some part of the building collapses or fails and the building falls apart.
Dear Isam Alkhalifawi
Strongly Agree! The coordination of the construction and the ground, together with the duration of the earthquake, and the incomplete measures of damping of the construction, will destroy the construction. But not when it is designed as I suggest. For the first time, use an external force to control the coordination of the construction. That makes the difference. For this reason I can control the oscillation width of each floor separately and control the coordination of the building
Dear friend László Attila Horváth
Thank you very much for your kind words. As an independent researcher, you have seen everything, what can I tell you? If you predict earthquakes and I discovered the ultimate seismic system, then many will lose their jobs. Nobody loves us .... The other for constructions
There is not a single construction in the world that can withstand all earthquakes.
The anti-seismic construction technology has modern and good anti-seismic regulations! However, the structures do not withstand any major earthquake. There are too many unpredictable factors that can bring destruction to what modern earthquake structures. The factors that determine the seismic behavior of structures are numerous, and in part probable. Unknown direction of the earthquake, unknown exact content of seismic excitation frequencies, unknown its duration. The maximum possible accelerations given by the seismologists, and determining the coefficient of earthquake resistance design, have a probability of exceedance of more than 10%. The correlation of quantities such as "Inertial tensions - damping forces - elastic forces - dynamic construction features - soil construction interaction - imposed ground movement " is non-linear, directional. According to the modern regulations, the seismic design of the buildings is based on the requirements of efficient node design and ductility. The inevitable inelastic behavior under strong seismic stimulation is directed to selected elements and failure mechanisms. The incompetence of the nodes, and the limited ductility of the elements, will produce blatant forms of failure. The purpose of the modern anti-seismic regulation is to construct structures that: a) In frequent small earthquakes, with a high probability to happen, construction will suffer nothing, b) In medium-sized earthquakes, medium probability of becoming, construction will suffer minor repairable damage and c) In very strong earthquakes, little chance of happening will have no losses of human lives. So we should not use the term "The Ultimate Anti-Seismic Design." We should use the term "Quality constructions" This means applying the requirements of all modern regulations. The quality of construction and its safety is also a function of the economic situation of the countries. It is understandable that poor countries can not be compared with countries where they have very expensive modern anti-seismic regulations. Conclusion ... there is no Ultimate Anti-Seismic Design today, and we should not refer to Ultimate Anti-Seismic Design. So, there is a great need today to invent the Ultimate Anti-Seismic Design with lower construction costs.
In countries like Japan where seismic events are quiet common , buildings are built so that they can resist building deformation enormously. Technical forethought by civil engineers and those involved in building construction can greatly mitigate property damage and human loss staggeringly.
Dear Haider Kareem Jasim
read if you want this article.
https://www.researchgate.net/post/Method_for_controlling_the_inevitable_inelastic_displacements_inelastic_deformation_of_structures_during_an_earthquake
Dear Dr. Samy Elhadi Oussadou
Where to find the scientists for this thorough examination of the method is a question?
- Badges
- Science topic
- Similar topics
- Chemistry, Organic
- Organic