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7/28/2019 BehaviourPrefabricatedTimberWallElementsStaticCyclicLoading-cib_41_15_7_schaedle
http://slidepdf.com/reader/full/behaviourprefabricatedtimberwallelementsstaticcyclicloading-cib41157schaedle 1/30
UniversitUniversitäät Karlsruhe (TH)t Karlsruhe (TH) Lehrstuhl f Lehrstuhl f üür Ingenieurholzbaur Ingenieurholzbau
Research UniversityResearch University ·· foundedfounded 18251825 und Baukonstruktionenund Baukonstruktionen
CIBCIB -- W18 Meeting 41W18 Meeting 41
St. Andrews, CanadaSt. Andrews, Canada
2008, August 242008, August 24--2828
Behaviour Behaviour of prefabricated timber wallof prefabricated timber wall
elements under static and cyclic loadingelements under static and cyclic loading
Patrick SchPatrick SchäädledleHans Joachim BlaHans Joachim Blaßß
UniversitUniversitäät Karlsruhe (TH)t Karlsruhe (TH)
7/28/2019 BehaviourPrefabricatedTimberWallElementsStaticCyclicLoading-cib_41_15_7_schaedle
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UniversitUniversitäät Karlsruhe (TH)t Karlsruhe (TH) Lehrstuhl f Lehrstuhl f üür Ingenieurholzbaur Ingenieurholzbau
Research UniversityResearch University ·· foundedfounded 18251825 und Baukonstruktionenund Baukonstruktionen
• Introduction: Idea of the system
• Test setup at Universität Karlsruhe
• Monotonic tests with PFTE
• Cyclic tests with PFTE
• Tests with conventional timber framed walls
Behaviour Behaviour of prefabricatedof prefabricated
timber wall elements (PFTE)timber wall elements (PFTE)under static and cyclic loadingunder static and cyclic loading
• Comparison of test results
• Summary and future prospects
7/28/2019 BehaviourPrefabricatedTimberWallElementsStaticCyclicLoading-cib_41_15_7_schaedle
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7/28/2019 BehaviourPrefabricatedTimberWallElementsStaticCyclicLoading-cib_41_15_7_schaedle
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UniversitUniversitäät Karlsruhe (TH)t Karlsruhe (TH) Lehrstuhl f Lehrstuhl f üür Ingenieurholzbaur Ingenieurholzbau
Research UniversityResearch University ·· foundedfounded 18251825 und Baukonstruktionenund Baukonstruktionen
www.hib-elemente.de
7/28/2019 BehaviourPrefabricatedTimberWallElementsStaticCyclicLoading-cib_41_15_7_schaedle
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UniversitUniversitäät Karlsruhe (TH)t Karlsruhe (TH) Lehrstuhl f Lehrstuhl f üür Ingenieurholzbaur Ingenieurholzbau
Research UniversityResearch University ·· foundedfounded 18251825 und Baukonstruktionenund Baukonstruktionen
4) Top plate is connected to the wall
5) Elements are connected by
staples in horizontal joints,
one staple every 50mm
→ 20 staples / meter
2) Elements are laid out
1) Fixing the wall plate to the foundation
3) Vertical studs are installed
7/28/2019 BehaviourPrefabricatedTimberWallElementsStaticCyclicLoading-cib_41_15_7_schaedle
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UniversitUniversitäät Karlsruhe (TH)t Karlsruhe (TH) Lehrstuhl f Lehrstuhl f üür Ingenieurholzbaur Ingenieurholzbau
Research UniversityResearch University ·· foundedfounded 18251825 und Baukonstruktionenund Baukonstruktionen
Shear wall testing:
• ISO/CD 21581 was chosen to
provide static and cyclic test method
Upload (movable and rotating)
• Boundary conditions applied as
intended in PFTE system buildings
Shear cantilever mechanism
7/28/2019 BehaviourPrefabricatedTimberWallElementsStaticCyclicLoading-cib_41_15_7_schaedle
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UniversitUniversitäät Karlsruhe (TH)t Karlsruhe (TH) Lehrstuhl f Lehrstuhl f üür Ingenieurholzbaur Ingenieurholzbau
Research UniversityResearch University ·· foundedfounded 18251825 und Baukonstruktionenund Baukonstruktionen
Test setup at Universität Karlsruhe
3,0 m2,5 m
~8 m
7/28/2019 BehaviourPrefabricatedTimberWallElementsStaticCyclicLoading-cib_41_15_7_schaedle
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UniversitUniversitäät Karlsruhe (TH)t Karlsruhe (TH) Lehrstuhl f Lehrstuhl f üür Ingenieurholzbaur Ingenieurholzbau
Research UniversityResearch University ·· foundedfounded 18251825 und Baukonstruktionenund Baukonstruktionen
Monotonic tests with PFTE
2 , 5
7 m
3,0m
Upload: 1, 10 or 20 kN/m
M t i t t ith PFTE
7/28/2019 BehaviourPrefabricatedTimberWallElementsStaticCyclicLoading-cib_41_15_7_schaedle
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UniversitUniversitäät Karlsruhe (TH)t Karlsruhe (TH) Lehrstuhl f Lehrstuhl f üür Ingenieurholzbaur Ingenieurholzbau
Research UniversityResearch University ·· foundedfounded 18251825 und Baukonstruktionenund Baukonstruktionen
Monotonic tests with PFTE
• Wall geometry L x H = 3,00 x 2,57 m
• Different uploads: 1 kN/m, 10 kN/m or 20 kN/m
• ISO/CD 21581 test schedule (according to EN 594)
• 11 Monotonic tests with PFTE carried out
Test No.Test No. UploadUpload CommentComment
1 kN/m1 kN/m
Additional Additional staplesstaples inin
overlapoverlap of of columnscolumns
10 kN/m10 kN/m
10 kN/m10 kN/m
20 kN/m20 kN/m
1,2,31,2,3
4,54,5
6,7,86,7,8
9,10,119,10,11
M t i t t ith PFTE
7/28/2019 BehaviourPrefabricatedTimberWallElementsStaticCyclicLoading-cib_41_15_7_schaedle
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UniversitUniversitäät Karlsruhe (TH)t Karlsruhe (TH) Lehrstuhl f Lehrstuhl f üür Ingenieurholzbaur Ingenieurholzbau
Research UniversityResearch University ·· foundedfounded 18251825 und Baukonstruktionenund Baukonstruktionen
Monotonic tests with PFTE
0
10
20
30
40
50
60
70
80
0 20 40 60 80 100 120 140 160 180 200 220 240 260 280
Displacement in mm
L o a d
i n
k N
Upload:
10 kN/m
Upload:
1 kN/m
M t i t t ith PFTE
7/28/2019 BehaviourPrefabricatedTimberWallElementsStaticCyclicLoading-cib_41_15_7_schaedle
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UniversitUniversitäät Karlsruhe (TH)t Karlsruhe (TH) Lehrstuhl f Lehrstuhl f üür Ingenieurholzbaur Ingenieurholzbau
Research UniversityResearch University ·· foundedfounded 18251825 und Baukonstruktionenund Baukonstruktionen
Monotonic tests with PFTE
Position of screws in
overlap of columns
Monotonic tests with PFTE
7/28/2019 BehaviourPrefabricatedTimberWallElementsStaticCyclicLoading-cib_41_15_7_schaedle
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UniversitUniversitäät Karlsruhe (TH)t Karlsruhe (TH) Lehrstuhl f Lehrstuhl f üür Ingenieurholzbaur Ingenieurholzbau
Research UniversityResearch University ·· foundedfounded 18251825 und Baukonstruktionenund Baukonstruktionen
Monotonic tests with PFTE
0
10
20
30
40
50
60
70
80
0 20 40 60 80 100 120 140 160 180 200 220 240 260 280
Displacement in mm
L o a d
i n
k N
Upload:
10 kN/m
Upload:
10 kN/m, screws
in overlap of
columns
Upload:
20 kN/m
Upload:
1 kN/m
Cyclic tests with PFTE
7/28/2019 BehaviourPrefabricatedTimberWallElementsStaticCyclicLoading-cib_41_15_7_schaedle
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UniversitUniversitäät Karlsruhe (TH)t Karlsruhe (TH) Lehrstuhl f Lehrstuhl f üür Ingenieurholzbaur Ingenieurholzbau
Research UniversityResearch University ·· foundedfounded 18251825 und Baukonstruktionenund Baukonstruktionen
• Same geometry L x H = 3,00 x 2,57 m• Different uploads: 1 kN/m, 10 kN/m or 20 kN/m
• ISO/CD 21581 test schedule (according to ISO 16670)
Cyclic tests with PFTE
• 11 Cyclic tests with PFTE carried out
Test No.Test No.UploadUpload CommentComment
1 kN/m1 kN/m
GravelGravel infillinfill
10 kN/m10 kN/m
20 kN/m20 kN/m10 kN/m10 kN/m
1,2,31,2,3
4,5,64,5,6
7,8,97,8,910,1110,11
Cyclic tests with PFTE
7/28/2019 BehaviourPrefabricatedTimberWallElementsStaticCyclicLoading-cib_41_15_7_schaedle
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UniversitUniversitäät Karlsruhe (TH)t Karlsruhe (TH) Lehrstuhl f Lehrstuhl f üür Ingenieurholzbaur Ingenieurholzbau
Research UniversityResearch University ·· foundedfounded 18251825 und Baukonstruktionenund Baukonstruktionen
Cyclic, Upload: 1kN/m, No. 2
-80
-60
-40
-20
0
20
40
60
80
-100 -80 -60 -40 -20 0 20 40 60 80 100Displacement in mm
L o a d
i n
k N
Hysteretic response
First envelope curve
Second envelope curve
Third envelope curve
Cyclic tests with PFTE
Cyclic tests with PFTE
7/28/2019 BehaviourPrefabricatedTimberWallElementsStaticCyclicLoading-cib_41_15_7_schaedle
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UniversitUniversitäät Karlsruhe (TH)t Karlsruhe (TH) Lehrstuhl f Lehrstuhl f üür Ingenieurholzbaur Ingenieurholzbau
Research UniversityResearch University ·· foundedfounded 18251825 und Baukonstruktionenund Baukonstruktionen
Cyclic, Upload: 1kN/m, No. 2
-80
-60
-40
-20
0
20
40
60
80
-100 -80 -60 -40 -20 0 20 40 60 80 100Displacement in mm
L o a d
i n
k N
Hysteretic response
First envelope curve
Second envelope curve
Third envelope curve
Cyclic tests with PFTE
p
d
eqE2
E
π=υ
Dissipated energy
Potential energy
hysteresis equivalent
viscous damping ratio (EN 12512)
8,6% - 9,5%10,9% - 11,0%PFTE,
Upload 1 kN/m
hysteresis
equivalent viscous
damping ratio
2nd and 3rd cycle
hysteresis
equivalent viscous
damping ratio
1st cycle
Cyclic tests with PFTE
7/28/2019 BehaviourPrefabricatedTimberWallElementsStaticCyclicLoading-cib_41_15_7_schaedle
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UniversitUniversitäät Karlsruhe (TH)t Karlsruhe (TH) Lehrstuhl f Lehrstuhl f üür Ingenieurholzbaur Ingenieurholzbau
Research UniversityResearch University ·· foundedfounded 18251825 und Baukonstruktionenund Baukonstruktionen
Cyclic, Upload 10kN/m, No. 1
-80
-60
-40
-20
0
20
40
60
80
-100 -80 -60 -40 -20 0 20 40 60 80 100Displacement in mm
L o a d
i n
k N
Hysteretic responseFirst envelope curveSecond envelope curveThird envelope curve
Cyclic tests with PFTE
Cyclic tests with PFTE
7/28/2019 BehaviourPrefabricatedTimberWallElementsStaticCyclicLoading-cib_41_15_7_schaedle
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UniversitUniversitäät Karlsruhe (TH)t Karlsruhe (TH) Lehrstuhl f Lehrstuhl f üür Ingenieurholzbaur Ingenieurholzbau
Research UniversityResearch University ·· foundedfounded 18251825 und Baukonstruktionenund Baukonstruktionen
Cyclic, Upload 10kN/m, No. 1
-80
-60
-40
-20
0
20
40
60
80
-100 -80 -60 -40 -20 0 20 40 60 80 100Displacement in mm
L o a d
i n
k N
Hysteretic responseFirst envelope curveSecond envelope curveThird envelope curve
Cyclic tests with PFTE
14,1% - 14,8%13,9% - 15,7%PFTE,
Upload 10 kN/m
hysteresis
equivalent viscous
damping ratio
2nd + 3rd cycle
hysteresis
equivalent viscous
damping ratio
1st cycle
Cyclic tests with PFTE
7/28/2019 BehaviourPrefabricatedTimberWallElementsStaticCyclicLoading-cib_41_15_7_schaedle
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UniversitUniversitäät Karlsruhe (TH)t Karlsruhe (TH) Lehrstuhl f Lehrstuhl f üür Ingenieurholzbaur Ingenieurholzbau
Research UniversityResearch University ·· foundedfounded 18251825 und Baukonstruktionenund Baukonstruktionen
Cyclic, Upload 20kN/m, No. 2
-80
-60
-40
-20
0
20
40
60
80
-100 -80 -60 -40 -20 0 20 40 60 80 100Displacement in mm
L o a d
i n
k N
Hysteretic ResponseFirst Envelope CurveSecond Envelope CurveThird Envelope Curve
Cyclic tests with PFTE
Cyclic tests with PFTE
7/28/2019 BehaviourPrefabricatedTimberWallElementsStaticCyclicLoading-cib_41_15_7_schaedle
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UniversitUniversitäät Karlsruhe (TH)t Karlsruhe (TH) Lehrstuhl f Lehrstuhl f üür Ingenieurholzbaur Ingenieurholzbau
Research UniversityResearch University ·· foundedfounded 18251825 und Baukonstruktionenund Baukonstruktionen
Cyclic, Upload 20kN/m, No. 2
-80
-60
-40
-20
0
20
40
60
80
-100 -80 -60 -40 -20 0 20 40 60 80 100Displacement in mm
L o a d
i n
k N
Hysteretic ResponseFirst Envelope CurveSecond Envelope CurveThird Envelope Curve
Cyclic tests with PFTE
12,9% - 17,5%12,5% - 15,3%PFTE,
Upload 20 kN/m
hysteresis
equivalent viscous
damping ratio
2nd + 3rd cycle
hysteresis
equivalent viscous
damping ratio
1st cycle
Cyclic tests with PFTE
7/28/2019 BehaviourPrefabricatedTimberWallElementsStaticCyclicLoading-cib_41_15_7_schaedle
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UniversitUniversitäät Karlsruhe (TH)t Karlsruhe (TH) Lehrstuhl f Lehrstuhl f üür Ingenieurholzbaur Ingenieurholzbau
Research UniversityResearch University ·· foundedfounded 18251825 und Baukonstruktionenund Baukonstruktionen
Cyclic tests with PFTE
Cyclic tests with PFTE
7/28/2019 BehaviourPrefabricatedTimberWallElementsStaticCyclicLoading-cib_41_15_7_schaedle
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UniversitUniversitäät Karlsruhe (TH)t Karlsruhe (TH) Lehrstuhl f Lehrstuhl f üür Ingenieurholzbaur Ingenieurholzbau
Research UniversityResearch University ·· foundedfounded 18251825 und Baukonstruktionenund Baukonstruktionen
Cyclic , Upload 10kN/m, No. 1
-80
-60
-40
-20
0
20
40
60
80
-100 -80 -60 -40 -20 0 20 40 60 80 100
Displacement in mm
L o a d
i n
k N
Hysteretic responseFirst envelope curveSecond envelope curveThird envelope curve
Cyc c tests t
Gravel infill, Cyclic, Upload 10kN/m, No. 2
-80
-60
-40
-20
0
20
40
60
80
-100 -80 -60 -40 -20 0 20 40 60 80 100
Displacement in mm
L o a d
i n
k N
Hysteretic ResponseFirst Envelope CurveSecond Envelope CurveThird Envelope Curve
Cyclic tests with PFTE
7/28/2019 BehaviourPrefabricatedTimberWallElementsStaticCyclicLoading-cib_41_15_7_schaedle
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UniversitUniversitäät Karlsruhe (TH)t Karlsruhe (TH) Lehrstuhl f Lehrstuhl f üür Ingenieurholzbaur Ingenieurholzbau
Research UniversityResearch University ·· foundedfounded 18251825 und Baukonstruktionenund Baukonstruktionen
Cycl ic, Upload 10kN/m, No. 1
-80
-60
-40
-20
0
20
40
60
80
-100 -80 -60 -40 -20 0 20 40 60 80 100Displacement in mm
L o a d
i n
k N
Hysteretic responseFirst envelope curveSecond envelope curveThird envelope curve
y
Gravel in fill, Cyclic , Upload 10kN/m, No. 2
-80
-60
-40
-20
0
20
40
60
80
-100 -80 -60 -40 -20 0 20 40 60 80 100
Displacement in mm
L o a d
i n
k N
Hysteretic ResponseFirst Envelope CurveSecond Envelope CurveThird Envelope Curve
14,1% - 14,8%13,9% - 15,7%PFTE,Upload 10 kN/m
29,6% - 33,8%22,4% - 32,2%PFTE,
Gravel infill,
Upload 10 kN/m
hysteresisequivalent
viscous
damping ratio
2nd + 3rd cycle
hysteresisequivalent
viscous
damping ratio
1st cycle
Comparison
Gravel infill – no gravel infill
Tests with conventional timber framed walls
7/28/2019 BehaviourPrefabricatedTimberWallElementsStaticCyclicLoading-cib_41_15_7_schaedle
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UniversitUniversitäät Karlsruhe (TH)t Karlsruhe (TH) Lehrstuhl f Lehrstuhl f üür Ingenieurholzbaur Ingenieurholzbau
Research UniversityResearch University ·· foundedfounded 18251825 und Baukonstruktionenund Baukonstruktionen
- 3 cyclic tests
• 6 tests with different timber framed walls
- 3 monotonic tests
Test No.Test No. SheathingSheathing UploadUpload LoadingLoading
10 kN/m10 kN/m MonotonicMonotonic
CyclicCyclic
MonotonicMonotonic
CyclicCyclic
MonotonicMonotonic
CyclicCyclic
10 kN/m10 kN/m
1 kN/m1 kN/m
1 kN/m1 kN/m
10 kN/m10 kN/m
10 kN/m10 kN/m
oneone sideside
oneone sideside
twotwo sidessides
twotwo sidessides
twotwo sidessides
twotwo sidessides
11
22
33
44
55
66
Tests with conventional timber framed walls
7/28/2019 BehaviourPrefabricatedTimberWallElementsStaticCyclicLoading-cib_41_15_7_schaedle
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UniversitUniversitäät Karlsruhe (TH)t Karlsruhe (TH) Lehrstuhl f Lehrstuhl f üür Ingenieurholzbaur Ingenieurholzbau
Research UniversityResearch University ·· foundedfounded 18251825 und Baukonstruktionenund Baukonstruktionen
4 x 0,625m
2 , 5
5 m
Upload: 1, 10 or 20 kN/m
Tests with conventional timber framed walls
7/28/2019 BehaviourPrefabricatedTimberWallElementsStaticCyclicLoading-cib_41_15_7_schaedle
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UniversitUniversitäät Karlsruhe (TH)t Karlsruhe (TH) Lehrstuhl f Lehrstuhl f üür Ingenieurholzbaur Ingenieurholzbau
Research UniversityResearch University ·· foundedfounded 18251825 und Baukonstruktionenund Baukonstruktionen
0
10
20
30
40
50
60
70
80
0 20 40 60 80 100 120 140 160 180 200 220 240 260 280
Displacement in mm
L o a
d
i n
k N
Upload:
10 kN/m
Upload:
10 kN/m, screws
in overlap of
columns
Upload:
20 kN/m
Upload:
1 kN/m
Conventional timber framed walls
a) Sheathing: one side, Upload: 10 kN/m
b) Sheathing: both sides, Upload: 1kN/m
c) Sheathing: both sides, Upload: 10kN/m
a) b) c)
Tests with conventional timber framed walls
7/28/2019 BehaviourPrefabricatedTimberWallElementsStaticCyclicLoading-cib_41_15_7_schaedle
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UniversitUniversitäät Karlsruhe (TH)t Karlsruhe (TH) Lehrstuhl f Lehrstuhl f üür Ingenieurholzbaur Ingenieurholzbau
Research UniversityResearch University ·· foundedfounded 18251825 und Baukonstruktionenund Baukonstruktionen
0
10
20
30
40
50
60
70
80
0 20 40 60 80 100 120 140 160 180 200 220 240 260 280
Displacement in mm
L o a
d
i n
k N
Upload:
10 kN/m
Upload:
10 kN/m, screws
in overlap of
columns
Upload:
20 kN/m
Upload:
1 kN/m
Conventional timber framed walls
a) Sheathing: one side, Upload: 10 kN/m
b) Sheathing: both sides, Upload: 1kN/m
c) Sheathing: both sides, Upload: 10kN/m
a) b) c)
Tests with conventional timber framed walls
7/28/2019 BehaviourPrefabricatedTimberWallElementsStaticCyclicLoading-cib_41_15_7_schaedle
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UniversitUniversitäät Karlsruhe (TH)t Karlsruhe (TH) Lehrstuhl f Lehrstuhl f üür Ingenieurholzbaur Ingenieurholzbau
Research UniversityResearch University ·· foundedfounded 18251825 und Baukonstruktionenund Baukonstruktionen
Cyclic , Upload 10kN/m, No. 1
-80
-60
-40
-20
0
20
40
60
80
-100 -80 -60 -40 -20 0 20 40 60 80 100
Displacement in mm
L o a d
i n
k N
Hysteretic responseFirst envelope curveSecond envelope curveThird envelope curve
timber framed, two sides, Cyclic, Upload 10kN/m, No. 1-80
-60
-40
-20
0
20
40
60
80
-100 -80 -60 -40 -20 0 20 40 60 80 100
Displacement in mm
L o a d
i n
k N
Hysteretic ResponseFirst Envelope CurveSecond Envelope CurveThird Envelope Curve
Tests with conventional timber framed walls
7/28/2019 BehaviourPrefabricatedTimberWallElementsStaticCyclicLoading-cib_41_15_7_schaedle
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UniversitUniversitäät Karlsruhe (TH)t Karlsruhe (TH) Lehrstuhl f Lehrstuhl f üür Ingenieurholzbaur Ingenieurholzbau
Research UniversityResearch University ·· foundedfounded 18251825 und Baukonstruktionenund Baukonstruktionen
Cyclic, Upload 10kN/m, No. 1
-80
-60
-40
-20
0
20
40
60
80
-100 -80 -60 -40 -20 0 20 40 60 80 100
Displacement in m m
L o a d
i n
k N
Hysteretic responseFirst envelope curveSecond envelope curveThird envelope curve
timber fr amed, two sid es, Cyclic, Upload 10kN/m, No. 1-80
-60
-40
-20
0
20
40
60
80
-100 -80 -60 -40 -20 0 20 40 60 80 100
Displacement in mm
L o a d
i n
k N
Hysteretic ResponseFirst Envelope CurveSecond Envelope CurveThird Envelope Curve
14,1% - 14,8%13,9% - 15,7%PFTE,
Upload 10 kN/m
7,5% - 9,2%10,9% - 12,9%Timber framed wall,Upload 10 kN/m
hysteresis
equivalent viscous
damping ratio
2nd + 3rd cycle
hysteresis
equivalent viscous
damping ratio
1st cycle
Comparison
Gravel infill –
no gravel infill
S d f t t
7/28/2019 BehaviourPrefabricatedTimberWallElementsStaticCyclicLoading-cib_41_15_7_schaedle
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UniversitUniversitäät Karlsruhe (TH)t Karlsruhe (TH) Lehrstuhl f Lehrstuhl f üür Ingenieurholzbaur Ingenieurholzbau
Research UniversityResearch University ·· foundedfounded 18251825 und Baukonstruktionenund Baukonstruktionen
Summary and future prospects
• ISO/CD 21581 used for all tests.
• Boundary conditions assumed to reflect actual building conditions
• Good performance of PFTE in monotonic and cyclic testing
• Excellent results for energy dissipation – Possibility of
application in seismic and windstorm prone areas
Goal of research project for Universität Karlsruhe:
• developing a finite-element model,
• create basics to be implemented in codes
7/28/2019 BehaviourPrefabricatedTimberWallElementsStaticCyclicLoading-cib_41_15_7_schaedle
http://slidepdf.com/reader/full/behaviourprefabricatedtimberwallelementsstaticcyclicloading-cib41157schaedle 30/30
UniversitUniversitäät Karlsruhe (TH)t Karlsruhe (TH) Lehrstuhl f Lehrstuhl f üür Ingenieurholzbaur Ingenieurholzbau
Research UniversityResearch University ·· foundedfounded 18251825 und Baukonstruktionenund Baukonstruktionen
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