Project Findings: Appendix 2

Transcription

1 NSF Final Report CMMI Project Findings: Appendix 2 Selected Damage Photos of Engineered Buildings PART 2. Teleco Office Tower Civil Engineering and Engineering Mechanics Department University of Arizona 18 September

2 A B North Wing C C1 concrete wall D Beam Masonry wall E Column F 9a 9 South Wing concrete wall K J M L Figure B2-1. Teleco Building (now NATCOM Building): (a) Structural Plan of Typical Floor A1 C1 D1 F1 North Wing South Wing Figure B2-2. Teleco Building: Overall view of West Face (Vertex) [A1-F1] 18 September

3 C1 A1 Interface Cracks Masonry Infill Wall Concrete Spandrel Beam Figure B2-3. Teleco Building: West Face of North Wing Vertex [A1-C1] showing horizontal interface cracks between the masonry infill wall and the RC frame at each level, including local spalling of the cement wash. 18 September

4 E1 F1 End of Core Wall Masonry Infill Wall Concrete Spandrel Beam Figure B2-4. Teleco Building: West Face of South Wing Vertex [D1-F1] showing: (1) vertical crack along interface between core wall and infill wall at E1; (2) Shear cracks along the masonry infill wall between E and F; (3), spalling and out-of-plane failure at the vertex corner F1; (3) pier failure between bathroom windows. 18 September

5 C1 D1 F1 M9 Core Wall Pier Failure 3 rd Wall Outof-plane Failure 2 nd Figure B2-5. Teleco Building: West Face of South Wing Vertex view from truck dock [D1-F1] showing: (1)Wall out-of-plane failure at the vertex corner F1 in the ground (2 nd ) story; (2) complete pier failure along the core wall outer face at level September

6 Elevator Core Vent Openings Core Wall Pier Failures Shear Failure Extends to Core Wall Curved Stem [D1-E1] Elevator Core Stair Core 3 rd Floor Shear Failure Extends Beyond Core Wall Figure B2-6. Teleco Building: Core Wall Pier Failure at 3 rd Floor: (a) Close-up [C1-D1]; (b) Wide view showing shear failure extending to curved core wall portion D1-E1 and to CMU wall E1-F1. 18 September

7 Beam E1-2 Beam E-F1 See Fig. B2-55 for interior view Figure B2-6 (con t). Teleco Building Core Wall: (c) Close-up of curved core wall at 3 rd floor [D1-E1] showing difference in construction quality between Core Wall curved stem around Stairwell and space frame beams/wall E1-2 and E1-F1. 18 September

8 Figure B2-7. Teleco Building West Face showing relationship of core wall pier shear failure and shear cracks and interface failures of north wing. 18 September

9 3 rd 5 th Shear X-cracking of wall piers 2 nd 4 th Figure B2-8. Core Wall West Face; (a) Diagonal Crack Extending from 3 rd Flr. window C1 down to 2 nd Floor Vent C1-1, presumably due to southward shear deformation of 3 rd floor core wall piers; (b) Core Wall piers at 4 th and 5 th floor indicating reverse shear X-cracking on some but not all of the piers. Figure B2-9. South Wing Vertex, Close up of 2 nd (ground) floor out-of-plane wall failure [E1-F1]. 18 September

10 M9a M9 See Fig. B2-XX for Interior View Figure B2-10. South views of South Wing Vertex: (a) south wing vertex damage at F1; (b) Vertical cracks at end of window well between F1 and M9a; (c) View of F1 looking Northwest showing out-ofplane movement of infill wall; and (d) Close-up of masonry wall failures at south bathroom windows. 18 September

11 M9a M9 Figure B2-11. South views of South Wing: (a) Damage at transition to window wall at M9; (b) Close up of M9 damage at lower floors; (c) South wing overall view showing full window wall. 11

12 M15 L15 K15 J15 Concrete L Wall RC Stair Core Wall Figure B2-12. East Face of South Wing showing: (1) General intact condition of this wing end which contains a RC stair core between J15-K15; (2) Horizontal interface cracks between the masonry infill wall and the RC floor spandrel beams K15-L15, presumably to large translation of the wing end; (3) Vertical interface crack at the junction between the south window wall and concrete L wall L15-M15. 12

13 Figure B2-13. North face of Teleco structure (front entrance of building) on Rue Fernand Lamartiniere. This column is an architectural feature Figure B2-14. Teleco North Face: (a) overall view; (b) Close up of one architectural column. 13

14 3 rd 2 nd A2 A3 Main Entrance Stairs to 2 nd Level Toward Column Line A1 Figure B2-15. Teleco North Face, showing grading of landscaping from 2 nd (ground) level at front entrance between A4 and A5, down toward even with 1 st (basement) level at A1. 14

15 C1 A1 2 nd 3 rd 2 nd Figure B2-16. Teleco North-West Corner, showing: (a) grading of landscaping at A1; (b) relationship of this region to the West Face (Note core wall repair at C1 2 nd level is visible at base the wall looked in good condition in this reagion and it was assumed repairs were limited to finish work) 15

16 A3 Figure B2-17. Teleco North Face, West Architectural Column at A3: (a,b) Failure at base of due to unanticipated load path; (c) Shear crack in stem wall extending from base indicating architectural feature likely transferred significant forces prior to failure. 16

17 Figure B2-18. Teleco North Face, West Architectural Column at A3: (a) Close up of base failure shwoing minimal reinforcement/confinement. 17

18 A4 Figure B2-19. Teleco North Face, Main Entrance, outer face (looking east) of the stairwell wall at A4, showing cracking in masonry wall and at interface with RC pilaster element. 18

19 A5 A4 Figure B2-20. Teleco North Face: (a) Main Entrance between A4-A5; (b) View of inner face of masonry wall A4; (c) Shear crack on inner face of masonry wall A4. 19

20 A6 Figure B2-21. Teleco North Face, East Architectural Column at A6: (a) Damage at base due to unanticipated load path; note spalling of Column B6 in the background; (b) Close up of damage. 20

21 B7 Figure B2-22. Teleco North Face, view looking south into central courtyard with Columns B7 and C7 visible in center of photo, and the north wing stairwell in the background on the left. 21

22 A8 A8 Figure B2-23. Teleco North Face, Corner RC L Wall at A8 showing significant spalling but otherwise good performance of this element. 22

23 Figure B2-24. Teleco North Face, Corner RC L Wall Ground (2 nd Story) Exposed Detailing at: (a) top of story; (b) bottom of story, showing smooth #2 ties at. ~ 50mm. 23

24 A8 N Figure B2-25. Teleco East Face of North Wing, East face of Corner RC L Wall at A8 showing full spalling but otherwise good performance of this element. 24

25 C1-8 C8 B8 A8 Masonry Stair Wall Concrete L Wall Interface Cracks Figure B2-26. Teleco East Face of North Wing showing: (1) Horizontal interface cracks between masonry infill wall with RC frame; (2) damage at masonry stair well 8C and 8-C1 in lower levels. 25

26 See Fig. B2-XX for Interior View Figure B2-27. Teleco East Face of North Wing: (a) Upper levels; (b) Open ground level. 26

27 C1-8 C8 See Fig. B2-31 for interior views of these walls Figure B2-28. Teleco North Wing Masonry Stairwell: (a) Post EQ Condition; (b) Ground level entrance. 27

28 Figure B2-29. Teleco North Wing Masonry Stairwell: (a) Lower region showing RC L-wall; Inset: Close up of region showing masonry infill on either side of RC L wall. 28

29 Figure B2-30. Teleco East Face of North Wing: (a) Composite Photo showing ground floor, stairwell to the south and open architecture to the north; (b) Close-up of masonry infill showing poor quality. 29

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31 Figure B2-31. Teleco East Face of North Wing. 31

32 Figure B2-32. Teleco North Wing Stair Well Interior: (a) Showing Horizontal Shear Failure across underside of 3 rd Floor Masonry Stariwell core wall East face; (b) In-plane shear failure of masonry wall. 32

33 Figure B2-33. Teleco Courtyard (2 nd Level) at interior of the V showing evidence of tile buckling. 33

34 Figure B2-34. Teleco Courtyard (2 nd Level) views: a) Inner view of south tower showing one story inner wing.; (b) Exterior view of internal region of vertex; (c) Junction of south wing and one story building wing showing exposed portion of south stair well shear walls. 34

35 Figure B2-35. One-Story building appendage Teleco Courtyard (2 nd Level) views. 35

36 D1 Figure B2-36. Basement (1 st ) Level: (a); (b) 36

37 F1 Figure B2-37. Basement (1 st ) Level: (a); (b) 37

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39 Figure B2-38. Teleco Basement (1 st Level) Parking Level below courtyard. Note large haunched girders. 39

40 Figure B2-39. Teleco Roof Views: (a) North Wing, looking east toward mountains; (b) Vertex, looking west toward bay; inset: condition inside elevator mechanical room. 40

41 Figure B2-40. Teleco 9 th flr (a,b): View of the elevator lobby between the wings, looking N-NE from south wing. Note inner face of the North wing visible through the window.. 41

42 Figure B2-40. Teleco 9 th flr (c,d): Typical corridor down center of Wing with offices on either side. 42

43 Masonry Infill Wall Concrete L Wall Figure B2-41. Teleco 9 th flr: (a) Interior View of RC L wall at A1, 9 th Flr.; (b) Full height masonry partition between B2 and A2, 9 th Flr. 43

44 Figure B2-42. Teleco 9 th flr : (a) Full height masonry partition walls.built to the underside of the RC frames (any interface shear connection?); (b) Full height masonry partition walls bearing on main girders. 44

45 Figure B2-43. Teleco 9 th flr : (a) RC Floor System showing floor joists and slab; (b) Column line. 45

46 Figure B2-44. Teleco 8 th flr: Typical partition damage in elevator lobby; (b) at entrance to south bathrooms [E2-3]; at junction with south wing [9L-K]. 46

47 F1 Figure B2-45. Teleco 8 th flr, Bathrooms Interior views: (a) Masonry Curtain wall failure at F1; (b) Damage at F1window openings showing mortar interface at underside of beam E1-F1. 47

48 M-9a Figure B2-46. Teleco 8 th flr, Bathrooms Interior views: Intersection of Masonry Partition wall and Masonry Curtain wall failure at M-9a, showing shear cracks in full height partition wall. 48

49 Figure B2-47. Teleco 7 th flr, Bathrooms Interior views: Failure at corner of masonry curtain wall between window openings [F1]. 49

50 Figure B2-48. Teleco 6 th flr, Elevator Lobby. 50

51 A8 B8 Figure B2-49. Teleco 6 th flr, Infill shear failure on North wing [A8]. 51

52 Figure B2-50. Teleco 5 th flr, Elevator Lobby. 52

53 Figure B2-51. Teleco 5 th flr (Col M9?) showing haunches on long- and short-span moment frame beams. Fig Teleco Tower Haunched Frame, 4 th Floor: (a) Along Column Line L; (b) Column B6; (c) Span L10-11; (d) Close up of Column L10. 53

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55 Figure B2-53. Teleco 4 th flr South Wing with floor system and frame structure partially exposed. 55

56 Figure B2-54. Teleco 3 rd flr. (a) shear crack in column at 3rd near attachment to 1-story bldg (See Fig. X); (b) no damage to north side of core wall at 3rd flr. 56

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58 Figure B2-55. Teleco SW Core Stair: (a) 3 rd flr down to 2 nd (See Fig. B2-6 for outer view); (b) close up; (c) Teleco West Stair Well 3 rd Floor. 58

59 Figure B2-56. Repair and Rebuilding Materials Teleco. 59

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61 Figure B2-57. Ongoing Repair of the Teleco Building 61