Reabilitare Elena

7/27/2019 Reabilitare Elena

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Student: Costiuc Elena

Group:3304


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The "National Theatre" was built between 1891-1896, on the

former City Hall of Iasi, after the plans of architects Felner and

Helmer.


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Old building of the National Theater in Iasi

(Copou) built in 1846 and destroyed by the fire

in 1888
http://ro.wikipedia.org/wiki/Imagine:TNI_1846.jpg


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Building 1

The structure is made of bearing masonry, slabs of brick and steel profiles, with the area

from the second floor having concrete between the steel profiles.

Foundations are continuous under the bearing walls made of stone with hydraulic lime,with consolidated areas through concrete.


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Building 2

The structure is made of

frames of monolith

reinforced concrete with

reinforced concrete slabs.


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Building 3(4)

The structure is made of bearing masonry with monolith reinforced

concrete slabs and the foundations are continuous under the bearing

walls, made of concrete.


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Technical Expertise

-Water infiltration from melting snow

The spectacle hall during the winter is heated with hot air making the temperature of

the bridge to climb up to 18-20 degrees. In these conditions the roof sheet allows

rapid melting of snow and water flows into the collecting gutter.

The sewerage no longer being maintained doesn't have any connection to the drain

pipe. Thus a part of the water flows on the walls.

Solutions:

- Ensuring the flow of rain water goes directly into the sewerage system;

- Remaking the thermal insulation with mattresses of mineral wool in the polyethylene

sheeting;


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The first

renovation was

plastered over the

old plaster with

mortar whichcaused cracks in

the new plaster.

Solutions:

-decopertation of old plasters(affected by dampness or rain water) and

adjacent areas of drain pipes, closing the cracks with mortar by injection of

the cracked walls and restoring plasters in marble dust with 100% white

cement and coloring areas under slab facades of the project .


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Exfoliations, cracks, detachmentseven falling of the stairsin the

posterior and lateral facades. The lateral facades are not usually plastered

(as in this case) because during the winter waters from snow infiltrate, freeze

and provoke cracks.

All stairs from the outside and those of stone from the main entrance from the

theatre and from the entrances and secondary accesses are affected (stairs and

parapets).


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Solutions:- At the stairs from the secondary accesses will be recovered all the steps with

mosaic stone, white marble and the walls (just like the plaster of socket).

-The access stairs are mainly from stone and will be repaired by plastie and

the parapets with decorative motives will be cleaned and treated like other

elements of stone of the theatre.


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Fractures between the socle and the ornamental columns

from the facades due to soil settlement


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Removing the stone socle

Deterioration of the stone foundation and the bricks by crumbling and

crushing due to chemical processes between them and silicate brought in to

strengthen its land under a constant humidity and raising the walls by capillarity.

Solutions:

- We tried to introduce sodium silicate for removing the salts from the soil;

-Hot plasters with perlite (type Dinu Moraru);

-Above the floor were executed holes and the solution with peruse was introduced .


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Achieving holes in the foundation for the

inserting of solution with peruse


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Attempting the method with solution of

peruse


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Replacing the socle stone with concrete socle.


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Deterioration of exterior joinery ; inclined large cracks and vertically to

headers.

Solutions:

- There will be recovered the windows from the basement and holes will be done in the

areas with windows formerly recovered;

- The windows of the old building will be unmounted and replaced with new ones after

the initial model;- All the inferior horizontal parts of the windows will be repaired.


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In the rehabilitation and

consolidation works we must

keep the architectural details

after the initial model.

Reabilitare Elena

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