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View Enquiry: BE 2021-6003-011


Contract Details
Contract Number
2021-6003
Region
Northwestern
Tender Owner
MTO Capital
Location
Windy Point Bridge (Site No. 45X-0077/B0) - Hwy 11, 10.5km west of Hwy 502
Highway
11
Length
0
QMS Declaration
Yes
Option A or B bidding
No
Contract Description
Grading, Granular Base, Hot Mix Paving, Structure Rehabilitation
Tender Instructions
Contract Dates
Tender Advertise
24-Feb-2021
Tender Opening
01-Apr-2021 at 01:30:00 PM
TRF Submission Opening
04-Mar-2021
TRF Submission Closing
26-Mar-2021 at 12:00:00 PM

Enquiry Details
Enquiry Date
26-Mar-2021 at 10:15:38 AM
Type
Other
Subject
Sheet 35A Setting Angle
Enquiry
On sheet 35A for the setting angle please confirm the intent of the welding symbols. The way it is currently shown it specifies that in the positive bending regions it is to be welded full length, approximately 800 m of weld. Is the Designers intent to have the angles welded the full length of the positive regions? For the negative region welding is only shown on top of a 60 mm wide spacer plate to isolate the setting angle from the girder. Please confirm this is the intent. If the setting angle is able to be support by a stitch weld 60-800 in the negative region would it not be acceptable in the positive region as well? Other cheaper options are available for sealing the gap for the UHPC. "

Response Details
Response Status
Completed
Response Date
29-Mar-2021 at 09:21:46 AM
Response
The weld symbol is not indicating 800mm of weld, nor is it full length. It is intended to provide a stitch weld 500mm long spaced 800mm apart on centre in the positive moment regions. In the negative moment region, it is the intent to isolate the setting angle from the girder flange by means of the 60mm wide spacer plate. The 60mm weld is acceptable in the negative moment regions since there is isolation between the setting angle and the girder flange and no in-service longitudinal forces are transferred to the weld. The 60mm weld is only accommodating loads from the panel level prior to and during UHPC placement. In the positive moment region, additional weld length is required to accommodate longitudinal in-service forces. It is not the intent to utilize the weld as a means of sealing the gap to avoid UHPC loss. It is the responsibility of the Contractor to ensure UHPC loss is prevented by other means of sealing as necessary.