INTRODUCTION DESIGN AND CONSTRUCTION RESEARCH & DEVELOPMENT MARKETING AND PERSPECTIVES CONCLUSIONS

Transcription

1 THE ITALIAN WAY TO TIMBER CONSTRUCTION Results and Perspectives Paolo LAVISCI INTRODUCTION DESIGN AND CONSTRUCTION RESEARCH & DEVELOPMENT MARKETING AND PERSPECTIVES CONCLUSIONS 1

2 WE ARE WE DO WE HAVE 50+ building professionals based in Prato, the most dynamic city in Tuscany assess, plan, design and survey smart construction projects, all over the world a strongly innovative approach and a deep focus on sustainability issues OUR ASSETS: high rate of success in design competitions strong links with constructors/manufactures constant involvement with R&D centres frequent presence in international events ISO quality system certifications 2

3 PROJECT MANAGEMENT FEASIBILITY STUDIES, URBAN PLANNING, ARCHITECTURE, ENGINEERING, ENERGY CONSTRUCTION MANAGEMENT SITE SURVEY, SAFETY, MAINTENANCE, DUE DILIGENCE 3

4 MARKET EVOLUTION 2009: L Aquila quake 308 DIED 8th TIME IN MY LIFE units (NHS) (0,9% of NHS) trend +16% mostly 1-2 storey family houses units (5% of ) trend +30% increase of multi-storey INTRODUCTION DESIGN AND CONSTRUCTION RESEARCH & DEVELOPMENT MARKETING AND PERSPECTIVES CONCLUSIONS 4

5 L AQUILA (2009) TIMBER VS. CONCRETE for people in 5 months TIMBER 8 CONCRETE 6 STEEL 2 L AQUILA All CLT. No scaffolding, no accidents. Delivered in 75 days. 5

6 L AQUILA Narrow CLT panels: more joints, but higher flexibility. L AQUILA Durability: fibercement ventilated wall over cork insulation. 6

7 13/02/2014 L AQUILA The first delivery: 75 days after the basement was ready. ready L AQUILA Details are simple and easy to understand for builders. 7

8 L AQUILA 7 buildings 6 types of apartments (32-74 m 2 ) 189 apartments Most relevant Euro/m 2 (excluding foundations) features and 33 kwh/m 2 performances year energy consumption of our design. 58 db sound insulation, wall between units 51 db sound insulation, floor between units 62 db sound transmission, floor between units 40 db sound insulation, exterior wall AFTER 4 YEARS, THE LOWEST MAINTENANCE COSTS OF THE 16 PROJECTS. OTHER DESIGNS ARCH LEGNO CLT + GL. Concrete slab. Scaffolding. Rendering on rockwool. 8

9 OTHER DESIGNS LOG ENGINEERING GL + LF. Detached balconies. Scaffolding. High prefab. OTHER DESIGNS WOOD BETON All CLT. Prefab stairs. Scaffolding. Rendering on rockwool. 9

10 OTHER DESIGNS ILLE 100% LF. Scaffolding. Fibercement ventilated wall. OTHER DESIGNS SAFWOOD All CLT nailded/glued. Scaffolding. Thermowood + rendering. 10

11 MILANO ( ) THE FIRST 9-STOREY TIMBER BUILDING IN ITALY MILANO IT S NORMAL CLT TECHNOLOGY, ALSO STAIRS AND LIFT SHAFTS. 11

12 MILANO COST: 950 /m 2 DELIVERY: 9 MONTHS MILANO TIMBER STRUCTURES: 19% CHEAPER THAN CONCRETE THE GAP: FROM 3-STOREY THE RISK: APPROVAL 12

13 MILANO MINISTRY PERMISSION: 6 MONTHS. THEN, LAW CHANGED. MILANO SHEAR AND MOMENTS AT THE FOOT OF COLUMNS 13

14 MILANO 120 mm 140 mm 160 mm WALL ROUGH DIMENSIONING BASED ON ROBUSTNESS 180 mm 200 mm MILANO LOAD DISTRIBUTION THROUGH BEAM AND HANGING FLOOR 14

15 MILANO MODELS q=1 AND q=2 JOINT STIFFN. Kser=EC5 AND EC5/20 MILANO FIRE SAFETY: REI 60 FOR ALL THE STRUCTURE. 15

16 MILANO CHECK OF WIND GUSTS: FIRST TIME ON A TIMBER RESIDENTIAL BUILDING. TOP FLOOR: - deformation 13 mm (28) - acceleration 26 mm/s 2 (40) FIRENZE 3D MODULAR PREFABR. 3-STOREY, RE-USABLE. 16

17 FIRENZE FROM OLD TO NEW (7-STOREY), WITH TEMPORARY HOUSING. FIRENZE DELIVERY: 4-MONTHS. WILL BE MOVED IN 3 YEARS. 17

18 FIRENZE FIRST PROTOTYPE PROVED IT CAN BE REUSED. FIRENZE STANDARD COSTS (1.100 /m 2 ). STANDARD QUALITY. 18

19 FIRENZE OUR CITY IS STILL INVESTING ON TIMBER BUILDINGS. A 12-STOREY IN TIMBER/CONCRETE High flexibility: 6 m floor span, 72 flats, m 2 19

20 A 12-STOREY IN TIMBER/CONCRETE Timber structures (CLT, GL, LF) around a concrete core. A 12-STOREY IN TIMBER/CONCRETE Deform. and setting checked for wind, seism, ground, RH, T, loading. 20

21 A 12-STOREY IN TIMBER/CONCRETE Use of timber strength: < 62% posts < 79% beams Fire safety: R90 A 12-STOREY IN TIMBER/CONCRETE CLT floor: 284 mm GL post: twin 600x200 mm 21

22 A 12-STOREY IN TIMBER/CONCRETE Joints fully designed and checked under all actions. TYPICAL BUILDINGS 4-5 STOREY 6-7 m SPANS 22

23 A NURSERY A 6-STOREY 23

24 MULTISTOREYS AN AUDITORIUM 24

25 A LANDMARK A RESORT IN SRI LANKA 25

26 PREFAB SLABS FOR INTRODUCTION DESIGN AND CONSTRUCTION RESEARCH & DEVELOPMENT MARKETING AND PERSPECTIVES CONCLUSIONS 26

27 TREES AND TIMBER INSTITUTE Dr. Stefano BERTI (current Director) 80 PEOPLE 4 LOCATIONS CLT CONSTRUCTION Prof. Ario CECCOTTI (former Director) ZERO ZERO DAMAGE DESIGN IS POSSIBLE WITH STD. CLT 27

28 ZERO DAMAGE DESIGN ZERO DAMAGE DESIGN 21st of 26 TEST QUAKES MANY REPAIRS, BUT ALWAYS ON THE SAME TIMBER 28

29 ZERO DAMAGE DESIGN NAILS ARE POPPING. OTHER NAILS MAY BE ADDED. STEEL IS YIELDING. HOLDOWN IS CHANGED OR ADDED NEXT TO IT. TRADITIONAL SHEARWALLS Ing. Andrea POLASTRI 29

30 CULTURAL HERITAGE CONSERVATION Dr. Nicola MACCHIONI CHEMICAL AND PHYSICAL SOLUTIONS Ing. Benedetto PIZZO GLUES FOR RESTORATION AND UPGRADE CLT FOR DESIGN FLEXIBILITY IN VARIOUS CLIMATES 30

31 MODULAR HOMES Arch. Paolo SIMEONE NEW GRADING DEVICES Dr. Michele BRUNETTI 31

32 OUTDOOR PERFORMANCES Dr. Ottaviano ALLEGRETTI TIMBER DOWELS AS SHEAR CONNECTORS Prof. Franco LANER 32

33 TIMBER DOWELS AS SHEAR CONNECTORS Prof. Franco LANER TIMBER ENGINEERING Prof. Maurizio PIAZZA 33

34 CONNECTIONS Prof. Maurizio PIAZZA OFTEN THE REAL PERFORMANCE IS 100% BETTER THAN EC5 FIRE AND SEISMIC EC8 REVISION Prof. Massimo FRAGIACOMO TEMPERATURE CONTOURS AT FAILURE TIME (101 MIN) Ambient temperature (20 C) 101 min STRESS CONTOURS AT FAILURE TIME (101 MIN) > 300 C (charred layer) Compression Tension 101 min Zero strength 34

35 EARTHQUAKE ENGINEERING Prof. Gian Michele CALVI CARBON EFFICIENT CONSTRUCTION Prof. Enrico DE ANGELIS 35

36 INTRODUCTION DESIGN AND CONSTRUCTION RESEARCH & DEVELOPMENT MARKETING AND PERSPECTIVES CONCLUSIONS MARKETING EFFORTS + + SCOPE (year 2005): INCREASING TIMBER USE (m 3 PER PERSON) 36

37 MARKETING EFFORTS Symposiums 3-4/year, average 400 people each Professional training 4-5/year, average 250 people each Online services FAQ calculation sw Publications 8 monographies Market survey MARKET SURVEY (2010) THE MARKET OF TIMBER HOMES IN ITALY

38 SURVEY RESULTS POPULATION AND TIMBER HOMES % NORTH CENTER SOUTH POPULATION HOMES CONSTRUCTION SYSTEM USED % CLT TF OTHER CURRENT PREDICTED SURVEY RESULTS ADVANTAGES OF TIMBER HOMES DESIGNER, NO EXPERIENCE DESIGNER, WITH EXPERIENCE 40 CARPENTER - BUILDER 30 % LOWER COSTS ECOLOGY FAST CONSTRUCTION THERMAL INSULATION SEISMIC SAFETY OTHER % DISADVANTAGES OF TIMBER HOMES HIGHER COSTS ECOLOGY LOW DURABILITY DESIGNER, NO EXPERIENCE DESIGNER, WITH EXPERIENCE CARPENTER - BUILDER TRADITION FIRE RISKS OTHER 38

39 VALUE Scenari Immobiliari (real estate analysts): in 6 Italian cities, the ecologic home with timber structures is worth 15% more. 39

40 SUSTAINABILITY Is the result of eco-awareness in management choices. TIMBER 452 t CONCRETE t SAFETY Sharing experiences will decrease risks much better than overdimensioning. 40

41 DURABILILITY Wood is biodegradable. But every country has many examples of timber structures perfectly efficient since centuries without preservative treatments. We need good design and execution standards. LOOKING AHEAD The key issue for the consolidation and growth of the timber construction market in Italy is keep durability and quality at their best. QUALITY CANNOT BE JUST CONTROLLED IF IT HAS NOT BEEN DESIGNED. 41

42 BUILDING KIT CERTIFICATION 66 CERTIFICATES IN EUROPE, OF WHICH 2 IN ITALY BUT ALSO THESE 2 PUBLIC STANDARDS, 60 KMS AWAY INTRODUCTION DESIGN AND CONSTRUCTION RESEARCH & DEVELOPMENT MARKETING AND PERSPECTIVES CONCLUSIONS 42

43 WE RE CHANGING OUR MIND-SETS WE RE THINKING BIG, BUT 43

44 WITH PRAGMATISM! Italian designers, producers and builders are developing innovative applications for timber-based structures within a Country that t was previously resistant t to this technology, by means of: R&D focused on users needs collaboration with foreign suppliers no conflict against concrete producers training of key professionals. THANK YOU FOR YOUR ATTENTION 44