8 NCEE-197

CA‘REDIVIVUSA Project on the Preservation of European

Historic Reinforced Concrete Housing Buildings –

The Concept

Maria Bostenaru, EERI YP

Rui Pinho

ROSE School / IUSS di Pavia, ITALY

CA‘REDIVIVUS project100th Anniversary of the 1906 San Francisco earthquake

Overview

The title

Introduction

Expected impact

Scientific methods

Discussion

Conclusions


=

Reinforced Concrete

The title

CASA REDIVIVUS

Cemento Armato

HOUSE TO NEW LIFE


Introduction

Valuation of existing buildings instead of design

of new buildings

Challenge in earthquake prone countries

More research on masonry than on RC

Concrete in France and Germany

Concrete in Italy, Greece, Romania, Portugal

Multidisciplinary decision

Conservation of heritage housing buildings


Expected impact of the project

Recommendations for protection of early XXth century heritage in Europe, ICOMOS, RISK-UE

DOCOMOMO: technologies, materials in the early 20th century styles and intervention

multidisciplinary research (conference sessions)

Sustainable development

World Housing Encyclopedia

Anthropologic perspective (perception)

sociology of architecture

interface load-bearing structure–architectural space


Objectives of the project


Nr. Objective Interest groups

1 - advance in earthquake engineering

- improving understanding of earthquake impact on the physical,

social, economic and cultural environment

- developing comprehensive measures for preventing earthquake loss

Multidisciplinary

2 an algorithm for optimisation of retrofit measures -

3 decentralised decision model for actors involved from:

- geophysics (engineering seismology)

- (structural) engineering

- economy (investment efficiency)

- sociology (consideration of user issues)

Interdisciplinary

4 ? applicability of retrofit methods which reduce demand (active

devices on frame braces)

Interdisciplinary

architecture

engineering

5 framework for integral planning (economic and engineering aspects

regarded from incipient planning phases)

Interdisciplinary

architecture

engineering

economics

6 solving contradictions between the objectives of single actors in the

retrofit implementation strategy through decision system

customisation

Multidisciplinary

7 comprehensibility of the measures analysed: inclusion into the

integral planning scheme near the flow in the physical

implementation of the retrofit system of a flow for the education of

the population which has to support the measures (spread from pilot

projects to „routine‟ wide ones)

architecture

urbanism

sociology

8 investigation of the support possibilities by political and economic

environment: existing programmes

-


Project management

objectives

(measures package)

objective

(measure)

scientific method

instruments

step

goal


Nr. Objective Method Instruments

1 improving understanding of

earthquake impact

- public presentation

- react to feedback on findings on the architectural,

structural, geophysical, social and economic aspects

of retrofitting historic concrete buildings

- active participation, co-organisation of conferences

- publication in reviewed manner

- web dissemination of results

2 algorithm for retrofit measures

optimisation

parametrical study FEM

3 decentralised decision model modularisation of a collaborative decision model

taking into account non-measurable criteria

pair wise comparison method used in investigation of

decision making on different levels; multiobjective

systems in urban/building scale transition

4 applicability of retrofit methods -

insights

documentation

training

literature and internet based research

lectures and assisted exercises.

5 framework for integral planning an example retrofit design model project for the

integral planning and defining its steps

exercise

6 solving contradictions between the

objectives of single actors

a basis system to administrate modules on the

different detail levels in the urban strategical planning

? suitability of different computer tools (GIS, spread

sheets, multimedia …)

7 „comprehensibilisation‟ of the

measures analysed

steps are foreseen in the „educational flow‟, so the

information circuit gets into a second phase:

- determine research directions

- determine means for accessibilisation of information

- investigation of consulting and participation means

- education

- create public ideas

- connection between education and research.

database for


- urban/building level navigation

- feedback

8 ? change is supported by political

and economic environment

documentation, conference organisation activity “Natural Hazards Impact on Urban Areas and

Infrastructure”; similar events.


Step Goal Method Instrument Objec-

tive

1 a. Technical reports on steel braces

retrofit systems applicability in RC

housing buildings

b. Charts of support programmes

Documentation Literature and internet based

research

Investigation

4; 8

2 a data table of use for the decision

method in the next step

parametrical study FEM 2

3 support the choices at step 4 and 1

(public presentation/feedback)

Highlighting

comprehensibility

Database and urban/building

level navigation

7

4 algorithm based on case studies

(step 2) for experiments (step 6)

modularisation of the

decision model

pair wise comparison 3

5 report about pros and cons of

available systems for this purpose

A basis system to

administrate modules

Comparative employment of

computer tools for this problem

6

6 trial of educational feasibility (step

3), more practical examples

project example Exercise 5

7 dissemination of results Publication of results Participation to conferences,

reviewed publications, web

1


Step Goal Method Instrument Measure

1 technical reports on implementation

programmes

documentation investigation

training.

4; 8

2 a data table of use for the decision

method in the next step

parametrical study FEM 2

3 support the choices at step 4 and step

1

highlighting

comprehensibility

database 7

4 algorithm based on case studies (step

2) for experiments (step 6)

modularisation of the

decision model

pair wise

comparison

3

5 report about available systems for this

purpose

a basis system to

administrate modules

computer tools 6

6 trial of educational feasibility (step 3) project example exercise 5

7 dissemination of results presentation publications 1

Nr. Measures package Method Interest groups

1 improving understanding of the

impact of earthquakes


- reaction to feedback on findings Multidisciplinary

2 development of an algorithm for

optimisation of retrofit measures

parametrical study -

3 development of a decentralised

decision model

modularisation of a collaborative

decision model

Interdisciplinary

4 insights into applicability of

retrofit methods

documentation

training

Interdisciplinary

architecture

engineering

5 development of a framework for

integral planning

retrofit design model project for the

integral planning

Interdisciplinary

architecture

engineering

economics

6 solving contradictions between

the objectives of single actors

develop a basis system to administrate

modules on different levels

Multidisciplinary

7 highlighting the comprehend-

sibility of the measures analysed

physical implementation flow along

with an education flow for population

which has to support the measures

architecture

urbanism

sociology

8 support changes by political and

economic environment:

document existing programmes

impact assessment

-


Discussion

Typological study

RC multi-storey residential buildings from early

XXth century of historic importance

Distribution and seismic threat in Europe

Collaborative issues

Systemic modelling

New functional demands; technological demands

Comparative studies


Discussion: typological study

(Romania)


Discussion: post-earthquake

intervention (Romania)


Discussion: comparative

potential (Italy and Greece)

Novocum, Como

(arch. G. Terragni

1927-1929)

Casa Lavezzari,

Milano

(arch. G. Terragni,

1934-36)K. Panayotakos, 1932-33 V. Douras, 1936

Blocks of flats in Athens; architects:


Discussion:

comparison themesDifferences in the architectural language

Changes induced by preservation requirements in high/low seismicity areas and their determinant factors

Earthquake hazard

Urban development policies

Existing attempts and distribution determined need for seismic rehabilitation

The time when this time of construction reached the respective countries

Reception of the technology

Relationship to the codes and affecting earthquakes

Suitability of retrofit methods for buildings situated in different cultural value ranges


Discussion: distribution in

Europe

Other countries

France

Portugal

Austria

Czech Republic

Slovenia

Spain

Italy

Hungary

Germany


Conclusions

High vulnerability of pre-code RC

New field

Interventions on existing buildings -

Multidisciplinary issue par excellence

Networking

Use of the computer

Public dissemination

Communication skills

Spatio-perceptive and spatio-functional issues

Potential for comparative studies

Thank you!

The project described in this paper is funded under the Marie Curie Intra-European Fellowships research

mobility scheme of the European Commission, contract nr. MEIF-CT-2005-009765 with a 2 years individual

fellowship in 2005-2007.

8 NCEE-197

Education

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