S02_Portion of JS Held Report.pdf

Attachment Pages 9 to 13 and Appendix

"B" of the JS Held Final Assessment Report

Correct Structural System for Building 1, Dated 10/14/2022

FINAL ASSESSMENT

REPORT

PREPARED FOR:

Department of Veterans Affairs Bay Pines VA Healthcare System 10000 Bay Pines Boulevard Bay Pines, FL 33744

Project No. 516-22-120 Correct Structural System for Building 1

J.S. Held, LLC No: 22050462

Bay Pines VA Healthcare System – Building 1 [22050462] October 14, 2022

2002 North Lois Avenue Suite 505 | Tampa FL 33609 | 800-971-7252 | Find your expert at jsheld.com Construction | Environmental, Health & Safety | Equipment | Forensic Accounting | Forensic Architecture & Engineering | Water & Fire Restoration and categorized these members into ‘good’, ‘fair’, or ‘poor’ conditions. Representative photos of ‘good’, ‘fair’, and ‘poor’ members may be found in Appendix A: Representative Conditions – Basement and Crawlspace attached to this report.

Generally, ‘Good’ condition concrete members evidenced no concrete spalling, exposed rebar, or significant (non-shrinkage) cracks. ‘Fair’ concrete members generally evidenced limited concrete spalling, exposed rebar, or cracks. ‘Poor’ concrete members exhibited significant concrete spalling, exposed and corroded rebar, or cracks. It should be noted that the first-story floor overlying several ‘poor’ members was inspected and no significant distress was observed. An approximate count of ‘fair’ and ‘poor’ concrete members by crawlspace can be found in Tables 1 and 2 below, which are intended to provide an overview of the crawlspace conditions. Please note that the table does not include all structural elements evaluated as many were considered to be in ‘good’ condition. Color-coded maps identifying ‘Good’, ‘Fair’, and ‘Poor’ conditions can be found in Appendix A following the representative conditions photographs.

Crawlspace A

Total number of structural members in fair or poor condition Condition Column Beam/Joist Underside of Slabs within Bays Wall Section within Bays

Fair 22 55 43 14

Poor 33 45 20 12 Table 1: Approximate count of ‘fair’ and ‘poor’ members within Crawlspace A

Crawlspace B Total number of structural members in fair or poor condition

Condition Column Beam/Joist Underside of Slabs within Bays Wall Section within Bays Fair 9 13 10 7 Poor 9 18 8 0

Table 2: Approximate count of ‘fair’ and ‘poor’ members within Crawlspace B

While the majority of the cast-in-place concrete columns, beams, and floor joists were in fair to poor condition, there were three (3) ‘Critical’ areas identified where temporary shoring should be installed until permanent repairs can be implemented. These areas were identified at the following locations and are shown in the floor plan diagram of Appendix B: Shoring of Basement and Crawlspace Critical Areas.

The floor joists and slab area bound between columns 29-30-50-53-73-91-87-29 below the kitchen (Crawlspace A) are in critical condition. Approximately 30 floor joists exhibited significant concrete cracking and spalling and the rebar was exposed. The steel reinforcement exhibited advanced corrosion and section loss which has resulted in a significant reduction in load capacity in the floor joists.

2002 North Lois Avenue Suite 505 | Tampa FL 33609 | 800-971-7252 | Find your expert at jsheld.com Construction | Environmental, Health & Safety | Equipment | Forensic Accounting | Forensic Architecture & Engineering | Water & Fire Restoration

Critical Floor Framing Critical Floor Framing

Critical Floor Framing Critical Floor Framing

Figure 1: Critical area bound by columns 29-30-50-53-73-91-87-29 in Crawlspace A

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Columns 169 and 173A (Crawlspace B) are spalling at the corners of areas with previous structural modification where loads were transferred from the steel beams through the bolted connections to the concrete columns. The failed repair resulted in a critical condition. This area is below the equipment room at the northwest corner of the west building extension

Column 169 Column 169

Column 173A Column 173A

Figure 2: Critical columns 169 and 173A in Crawlspace B

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Three floor joists between columns 167-180-181-172-172A-168-167 (Crawlspace B) are in critical condition. The floor joists exhibited significant concrete cracking and spalling and the rebar was exposed. The steel reinforcement exhibited advanced corrosion and section loss which has resulted in a significant reduction in load capacity in the floor joists.

Critical Joist Critical Joists

Critical Joists Critical Joists

Figure 3: Critical joists bound by columns 167-180-181-172-172A-168-167 in Crawlspace B

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Within the basement, approximately ten (10) locations of surface corrosion of the composite metal deck underside were brushed with the use of a steel brush and the claw of a welder’s hammer. The scratched (brushed) surfaces were inspected for pitting or flaking. No instances of pitting or flaking, indicative of potential loss of structural load-bearing capacity were observed during our inspection. The tested areas were thus rated ‘Fair’.

Evidence of prior repairs to the reinforced concrete elements was observed in both Crawlspaces A and B.

The repairs varied in extent and type but were typically limited to epoxy injection within concrete cracks, surface applications of cementitious mortar to cover chipped or spalled concrete, or concrete jackets to the columns, pile caps, and beams. In many cases, the repairs appeared to have been consistent with repairs detailed in the 1983 Renovation and Demolition plans. While most of the repairs were intact and appeared to be functioning as intended, there were several instances where the repairs had failed. Of note, the concrete jacket around column 173 A in Crawlspace B was separated from the original column and was supporting loads imposed by the addition of steel beams and mechanical equipment racks. The locations of failed repairs were accounted for during our assessment of the crawlspace and basement areas.

Ponding water was reported on the surface of the terrace outside the west entrance above Crawlspace B, particularly during periods of heavy rainfall. The finished floor of the terrace was back-pitched toward the doorstep when checked with a hand level. No visible evidence of deformation or vertical displacement was observed on the steel framing joists or concrete slab substrate under the west terrace within Crawlspace B. A slope check of the wide flange (W) steel joists with a hand level indicated that these floor framing components were back-pitched toward the interior, which caused site storm runoff to accumulate near the doorstep. This condition is attributable to the initial improper installation. (See Figure 4 on the next page).

[SPACE INTENTIONALLY LEFT BLANK]

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Back-pitched west terrace (1/8-inch per foot)

Back-pitched west terrace (1/8-inch per foot)

Floor framing under west terrace

Floor framing under west terrace

Level check of floor framing under west terrace

Level check of steel beam under west terrace

(1/8-inch per foot back pitched) Figure 4: West terrace and corresponding area of Crawlspace B below

September 13, 2022

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AAPPENDIX B: SHORING OF BASEMENT AND CRAWLSPACE CRITICAL

AREAS

1 2 2.3 3 4 4.9 5 5.1 5.9 6 6.5 6.9 7 7.2 7.4 8

8.7 9 9.1

8.9

13.9 14 14.3

14.1

15 15.6 16 16.1 16.5 17 17.1 17.9 18 18.1 19 20 20.1 20.7 21 22

G.6

G

F E.8

E.6

E.2

E

D C.9

C.1

C

B

A.2

A.1

A

G.1

G

F E.8

E.6

E.2

E

D C.9

C.1

C

B

A.2

A.1

A

35 36

1 2 3 4

29 30 31

69 70 71

87 88 89

106 107 108

109 110

33 34

75 76

93 94

112 113 114

95 96

77 78 79

97 98

41 42

99 100

43 44

64 65

101 102

46 47

118 119 120 121 122 123

124 125 126

24232221

20191817167 8 9 10

39 40

114A

115A 116A 117A

116B115B

7.9 8.9 9.3 9.5 10 10.610.7 11 11.2 11.8 12 12.312.4 13 13.513.7 14.1 15.1

P

N.4

N

M.6

M

L.2

L

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J H.9

H.1

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142 147

146 154

155 163

136 148 156 169

137 149 157178

175 135 168 171

174170

149A

172A

173A

145 153 161 166 179

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160152144139

161A153A143A140A

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