7-448-2023-040460 Add 1 Exhibit A.pdf
PDF 350 KB Posted
- Attached to
- ASR Phase 3 Recharge Basins
- Solicitation number
- 260221
- Issued by
- Sedgwick County, Kansas
About this file
This is a technical exhibit document prepared for the City of Wichita's Public Works & Utilities Department as part of the ASR Phase 3 Recharge Basins construction project in Kansas. The document, titled "Exhibit A - Reinforcing Steel Requirements for Concrete Headwall," provides detailed engineering specifications and design drawings for recharge basin infrastructure components. The specifications include concrete headwall construction details with reinforcing steel placement requirements, slope protection measures utilizing riprap with a D50 of 12 inches, filter blanket installation, and a flanged mounted flap gate for the recharge outlet. The drawings indicate elevation specifications for recharge basins RB09 at 1405.0 feet and RB15 at 1396.0 feet, with 3 horizontal to 1 vertical slope ratios. Reinforcing steel requirements are specified throughout, including #4 and #5 rebar placements at 12-inch centers, with detailed callouts for centered-in-wall (CIW) placement and corner (CB) reinforcement configurations.
The technical specifications include tension development length requirements for standard 90-degree hooks based on ACI 318 standards, with hook lengths varying by bar size and concrete strength (f'c values of 4000 psi noted). The document provides a reference table for tension development lengths specifying hook lengths of 7-9 inches for #4 bars and 8-12 inches for #5 bars depending on concrete strength and application. These specifications establish the engineering requirements and construction standards that bidders must meet for the concrete headwall and associated basin components on this public infrastructure project.
View the file
Other files
| File | Type | Posted |
|---|---|---|
| 4-260221 Bid Table Add01 Rev.pdf | ||
| 1-260221 Bid Table.pdf | ||
| 3-BP 448-2023-040460.pdf | ||
| 6-Add01 448-2023-040460.pdf | ||
| 5-448-2023-040460 KS20260162.pdf | ||
| 2-BPAttach 448-2023-040460 Revised.pdf | ||
| 8-Add02 448-2023-040460.pdf |
On GovTribe
Work with this file
- Download the original file
- Contacts named in this file
- Similar government files
- Ask GovTribe AI about this file
Text version
0.33
0.67'
0.83
5.33'
2.50'
1.50'
6.16'
5.83'
2.00'
1.00'
2.17'
3.00' 6.00' 3.00'
1.00'
0.67'
1.5
1'
6" FILTER BLANKET
18" RIPRAP THICKNESS
D50 = 12"
0.50'
PIPE FLANGED
MOUNTED
FLAP GATE
EDGE OF CONCRETE
RB09 EL. 1405.0
RB15 EL. 1396
3H:1V 3H:1V
RECHARGE BASIN
RB09 EL. 1405.0
RB15 EL. 1396.0
RECHARGE OUTLET DETAIL 1
#5 @ 12 CIW
RECHARGE BASIN
SLOPE PROTECTION
#4 @ 12
ADD #5 CIW
ON SLOPE
#4 @ 12 CIW
1.50' 0.83'
0.67'
5.33'
2.00'
4.00'1.00' 1.00' 1.00' 1.00'
24db
(TYP.)
#5 @ 12 O.C.
#5 @ 12 O.C.
1SECTION
#5 @ 12 CENTERED IN WALL (CIW)
(TYP)
#5 @ 12 CIWADD 4-#5 EF
#5 CB @ 12 24X24 (TYP)
λ = 1.0 FOR NORMAL WEIGHT CONCRETE = β = 1.0 FOR UNCOATED BARS
TABLE BASED ON ACI 318
TENSION DEVELOPMENT LENGTH (INCHES)
FOR STANDARD 90° HOOKS
BAR SIZE
f'c (psi)
4000 HOOK LENGTH 12d b
#4 7 6
#5 9 8
ΨE
d b d
6d b
#3 THRU #8
l dh
CRITICAL
SECTION
TENSION DEVELOPMENT LENGTH FOR STANDARD 90 DEGREE HOOK
EXHIBIT A - REINFORCING STEEL REQUIREMENTS FOR CONCRETE HEADWALL
File details come from the government source that posted it. Updated .