The New Ten Lessons from the Round Tower ANTONIO JARAMILLO MOREL,
Doctor Architect, Professor of Geotechnical Engineering at the University of Seville.
I had the opportunity to see the Cajasol Tower project, after three written requests to the Planning Department, and I've found a new Ten Lessons I want to share with the public in general.
1. The criteria for measuring the floor area of \u200b\u200bthe General Plan can be changed with a Special Plan .
The exterior walls have built how meters throughout the city of Seville, except in the Tower Cajasol. If you have in your home an envelope of 30 cm, but not be stepped on, recorded as built and included in the maximum you can build. Cajasol Tower has two facades with a circulation space between the two in more than 40 plants. By an article invented especially for the Tower does not count all that surface.
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2. Stairways, hallways, mechanical plant and elevators areas not counted, because they take up much space.
corridors and stairways, hallways, including elevator shafts, counted as floor area throughout Seville, except in the Tower Cajasol.
Being a single building, the floor area does not count in corridors, stairwells, lobbies, facades, technical areas, etc. Change the criteria for measuring the General Plan, only Cajasol Tower.
3. This can be built halls and areas with high concentrations of people in seconds basements.
Following tragic incidents like the fire of the nightclub Alcalá in Madrid, was imposed to limit the uses concentration involving people under the street level of the local risk (meetings, commercial, hospitality, etc).
was not enough room in the 40 floors of the building and the plot of over 400 meters long and had to put halls in the second basement just to build more!
4. All ladders buildings need ventilation and natural lighting, but in the Tower, with more than 40 plants may be completely indoors.
The justification is creative: is normal in such buildings as the stairs are indoors and thus be made. This requires a whole system of lighting and ventilation. You know the syndrome of "sick building"?. Fortunately, all are bound in Seville, very healthy, light and ventilation to building or patios, except Cajasol Torre.
5. Forget that the pillars have to go over each other to the ground. We support the vast majority of flexible beams.
The lack of study of the modulation of pillars of the upper and lower floors, is evident. They have gone to the easy solution: support almost all the pillars on big edge beams (two meters) in the transition slab. If we add the height of two basements and singing from the rafters of two meters: What is the height of fire evacuation?
Was not totally discouraged pillars support beams for the seismic?.
6. Structural joints in Tower Cajasol are not necessary, even with more than four feet long, irregularly shaped, with high sides on the ground and underground areas, but temperatures will affect Sevilla.
already refer "the Lorenzo" to teach when they put on together.
7. Concrete anchors and steel that hold the concrete perimeter screens occupy the surrounding land (public or private) in recent landfills that are filled and the area of \u200b\u200binfluence of the waters of the Guadalquivir.
No one can do so without prior authorization or condemnation justified: Cajasol Tower does. Even the subject in recent fillings (Expo 92). Anchors come to the easement area of \u200b\u200briver.
8. A tower placed in the airways can always be bent to allow the passage of aircraft.
published by the Ministry of Development and some drivers is clear enough: the Tower upset for the descent of the aircraft at the Airport San Pablo. The lesson is clear: do not ask for mandatory reporting to the Air Safety Agency, Ministry of Public Works before construction. This avoids problems. Fait accompli, but its construction could pose a significant risk to aviation and a problem for the future use of the airport of San Pablo. The Aviation Safety Agency has opened disciplinary proceedings against invading Puerto Triana by aeronautical.
9. Traffic studies can change by altering the actual times.
already produces chaos and traffic jam impossible to solve in this area Cartuja, exit west of the city, stop by at three in the afternoon. The new building it will worsen significantly. In the traffic study leads to alter the actual timetables Tower offices to cover the future chaos.
10. Present the Project Implementation to commence work is mandatory for all except the Tower, yet urgent, and leaving out the concepts more substantial guarantees.
The Planning Department requested a deposit refund. Anchors and screens already implemented (several million) were abolished in the endorsement. What about the screens of concrete and steel and concrete anchors that will meet the neighbors? Who paga su arranque?.
Estas Diez Nuevas Enseñanzas, podemos resumirlas en dos:
* No todos somos iguales ante el Plan General de Sevilla. Los proyectos pueden ser revisados con criterios diferentes en función del Promotor. Se admiten justificaciones como “es normal en otros sitios, aunque vaya en contra de la norma para todos (Plan General).
* Los rascacielos son elásticos y osmóticos: pueden esquivar los aviones mediante un giro de cinturilla adecuado (estructuras inteligentes), no necesitan juntas estructurales, y permiten el paso del agua subterránea de forma invisible por los garajes.
Animo todos a que conozcan estas Diez Nuevas Enseñanzas and request that we apply them in future projects.
