Solicitation Details
Solicitation FQ16078/WJG
STRUCTURAL RETROFIT OF BEAM B9 AT FARRAGUT NORTH METRORAIL STATION
Status: Closed
Posted on 01/13/2016
Due on 02/03/2016
Contract Administrator: Geroux,William
Email Address: wgeroux@wmata.com
Synopsis
Beam B9, one of the cast-in-place (CIP) post tensioned (PT) beams above the Farragut North Station platform, is situated under the intersection of Connecticut Avenue and L Street and in close proximity to the Northwest Station Entrance. The beam supports approximately 15’ of overburden and was configured to accommodate large diameter utilities within L Street. Beam B9, lying at a 66° skew to track alignment has a clear span of approximately 76 feet. The retrofit will consist of a permanent support installed at the mid-span of Beam B9. This support shall be structural steel columns with exterior cladding supported on concrete pedestals anchored on the station invert. Columns shall be preloaded using a controlled hydraulic jacking procedure with WMATA critical station platform weight restrictions of 5000 lbs.
The retrofit work will commence such that there are minimal impacts to station operations both during construction and once work is complete. Work elements shall include reconfiguration of an air return at the base of a typical station platform granite bench, temporary replacement or protection of an air distribution pylon, removal and reinstallation of metal pan ceiling and support structure, and relocation of electrical/communication conduits as needed. Sections of the platform floor tile and floor slab will require demolition and restoration to install the cast in place reinforced concrete pedestals which comprise the bases of the new steel columns.
Attachments
Volume 1 Division 00.pdf
FQ16078_Structural Retrofit of B9 Beam_Bid Sheet R2.xlsx
Volume 1 - Division 11.pdf
Volume 2 - Technical Specifications1.pdf
Volume 3 - Drawings.pdf
Volume 4 - WMATA 2014 CAD Standards_Approved.pdf
Volume 5 - 01114_2014_SSPP_System_Safety_Program_Plan.pdf
Volume 5 - 01114_2014_SSPP_System_Safety_Program_Plan Section 2.pdf
Volume 5 - 01114_Construction_Safety_and_Enviromental_manual.pdf
Volume 5 - 01115_2015_Safety_and_Security_Certification_Plan.pdf
Volume 6 - 01114_2013_2014_Severe_Weather_Operations_Plan.pdf
Volume 6 - 01114_MSDS_Review_Request_Form.pdf
Volume 6 - 01114_SSWP_Procedures_OAP_200-33.pdf
Volume 6 - 01115_WMATA_Safety_and_Security_CIL_s_List_sample.xlsx
Volume 6 - 01116_Acknowledment_and_Authorization_of_Back_Ground_screening.pdf
Volume 6 - 01116_CONTRACTOR_BADGE.pdf
Volume 6 - 01116_Contractor_ID_Badge_Application_Steps.docx
Volume 6 - 01141_Escort_Request_Input_Form.xlsx
Volume 6 - 01141_General Orders and Track Rights System (GOTRS) Request Form.pdf
Volume 6 - 01141_Sample_SSWP.pdf
Volume 6 - 01141_Sample_Switch_Order.pdf
Volume 6 - 01322_Form_C-113_Daily_Report_-_Labor_and_Materials_Period_of_Delay.xlsx
Volume 6 - WMATA_FQ16078__Safety_and_Security_CIL_s_List.xlsx