changes to part i & part viii related to structures specifications and... · part viii related...

Ray A. Mumphrey, P.E.

Assistant Bridge Engineer

CHANGES TO PART I &

PART VIII RELATED TO

STRUCTURES

Modify the architecture for Part VIII to

bring together related specifications and

accommodate future technologies and

specifications.

Section 104.05, Guarantee and Warranty of

Contractor’s Work

Guarantee period changed 1 year => 3 years, except for projects on

NHS routes, which will remain at 1 year

Guarantee and Warranty begin at final acceptance of the work

Renamed Section 105.02 Plans and Submittals

Standardized the submittal process, Section 105.02.2

Defined Submittal – Detailed drawings and documents provided by

the Contractor as required by the contract

Submittal process

Record – Once received by Project Engineer work can proceed

Review – Submittal goes through the review process until submittal acceptance

and then work may proceed

Set minimum submittal review periods for bidding purposes

Section 105.14, Load Restrictions

Contractor’s Responsibility

Responsible for evaluation of the structure with respect to his

construction activities and imposed loads, including the live load

identified on the plans.

Department’s Responsibility

Responsible for analyzing special permit loads requesting to transit

the construction site. Contractor required to provide construction

loads so the Department can perform the analysis.

Renamed and expanded Section 105.19, Bidder

Inquiries, Contractor Request, and Proposals

Defined different types of communications

Bidder Inquires – Falcon

RFI – Request for Information

To be used for plan and specification clarification only.

Value Engineering Proposal

To be used for proposals that reduce project cost and provide cost

savings shared with the Department

Contractor Proposal

New Proposal Type – cost increase or decrease

Usually at Contractor’s expense

Documents changes in the contract

Examples – bent redesigns, precast bottom forms, material

substitution, construction sequence requiring structural review, top

down construction, cofferdam redesign, Huey P. Long Big Lift, etc.

Contractor and VE Proposals

Contractor cannot base bid on proposal

Must satisfy all design criteria and not impair the essential functions

and characteristics of the project, as determined by the Department

No modification will be permitted which alters the nature of the

project or which is not an integral part of the project objective

Formally documents changes to the contract

The Department has the right to say “No”

801 General Requirements

802 Structural Excavation, Backfill and Earth Retaining Systems

803 Drilled Shafts

804 Piles

805 Structural Concrete

806 Deformed Reinforcing Steel

807 Structural Metals

808 Steel Grid Flooring

809 Welding

810 Bridge Railings, Hand Railings, Permanent Roadway

Barriers, and Pier Protection Systems

811 Painting and Protective Coatings

812 Treated Timber

813 Concrete Approach Slabs

814 Bearings

815 Joints

816 Bridge Drainage Systems

817 Temporary Works

818 Marine Pier Protection

820 Movable Bridge

821 Mechanical Systems

822 Electrical systems

823 Facilities

829 Instrumentation and Evaluation

830 Repair and Rehabilitation

New or repurposed

sections

Modified the architecture and completely re-wrote

Part VIII

Reorganized Part VIII in general construction sequence

Consolidated submittal requirements within sub-

sections when possible

Incorporated existing NS special provisions and

supplemental specifications when possible

Eliminated Metric !

Basic unit is “SqFt”

Established Format for Submittals

Works in concert with Part 1

Modernized submittal review process (Electronic)

Established improved procedures for project documentation

Established requirements for structural submittals

Provides additional requirements to Part I with respect to structures

Combined Section 803 Sheet Piles with 802 Structural

Excavation and Backfill and added earth retaining

systems

Clearly Defined Types of Sheet Piles

Permanent Sheeting – designed by EOR – paid / SqFt

Temporary Sheeting – designed by EOR – paid / SqFt

Removed when no longer needed

Contractor Sheeting – designed by Contractor – no direct

payment

Removed when no longer needed

Added Section on MSE Walls

814 Drilled Shaft Foundations => 803 Drilled Shafts

Places all foundation element specifications near the front of Part VIII

Adopted and modified Dan Brown Specification from

NHI Drilled Shaft Course

Aligned with AASHTO LRFD Bridge Construction

Specification and AASHTO LRFD Bridge Design

Specification

Require a Drilled Shaft Installation Plan

Require a Drilled Shaft Preconstruction Conference

Opened up testing methods

Integrity Testing

(CSL) Cross Hole Sonic Log Testing

NDT (Future Technologies)

Standardized items for Load Test

Static Load Test

High-Strain Dynamic Test

Force Pulse (Rapid) Test

Bi-Directional Load Cell Test (O-Cell)

Non-Destructive Test

Technique Shaft replaces Trial Shaft

Separated payment for Integrity Test and Load Test

from Test Shaft and Production Shafts

Require a Pile Installation Plan

Now the Contractor is required to perform Drivability Analysis

(WEAP) to assist in sizing pile hammers and develop pile driving

criteria

Static Load Test – ASTM-1143, Procedure A: Quick Test

Dynamic Monitoring renamed “Dynamic Monitoring

Assistance”

Standard Item “Dynamic Monitoring Instrumentation”

Pile Construction Log – Contractor fully documents

each pile driven. The Department witnesses and

performs QA

Pile Penetration Requirements – Practical Refusal

broadly defined as a rate of 20 blows per inch at

maximum stroke, for 3 consecutive inches

Separated payment for the test and the test pile or

indicator pile

Added an item for CPT Assistance

Incorporated specifications for Construction Site

Survey & Vibration Monitoring

Class Design Strengths (psi)

A1 4,000

A2 6,000

A3 8,500

Mass(A1) 4,000

Mass(A2) 6,000

Mass(A3) 8,500

P1 6,000

P2 8,500

P3 10,000

S 4,000

M 3,000

R 1,800

Reorganized to sequence of construction

Surface resistivity – acceptance and payment schedule New research data allow us to reduce the requirements and still meet

projected design life

Precast Prestressed Concrete Strength Requirements

Test cylinders for acceptance testing

Cure cylinders by either Match Cure or Thermocouple Control Cure

Updated curing and curing methods

Minimum cure time 7 days

Minimum cure time for decks 14 days

Minimum cure time for precast concrete 3 days

Better defined Curing Day

Curing day is defined as 24 hours in which the temperature is above

50°F and if binary or ternary mixes used, 55°F. Colder days may be

counted if accepted methods are used to maintain the specified

minimum air temperature adjacent to concrete.

Added table of cast-in-place concrete tolerances

Updated concrete cover requirements.

Form removal must meet strength and time req.

Redefined concrete surface finishes

All concrete receives a Class 1 Ordinary Finish

Pay Items for Class 2 Rubbed and Class 3 Special Finishes (SqFt) when

specified in the plans.

Plans need to specify application locations and itemize quantity.

Established a new section on “Precast Concrete” Conventionally Reinforced Precast

Prestressed Precast

Eliminated Epoxy Reinforcing Steel

No longer used in new bridge construction in Louisiana

Added standard pay items for:

Stainless Steel

Galvanized Steel

Mechanical Splices

Updated minimum lap splice lengths for LRFD

Improved Structural Metals specifications to reflect

best industry practices

Removed Metric Bolts

Renamed 807.04 Fabrication Requirements and moved

certification of shops to beginning of section

Updated AISC shop certification to current practice

Eliminated pay unit of “Pounds”

Moved Anchor Bolts from 805 to 807

Stainless Steel is default anchor bolt system (ASTM F593, Group 2,

Alloy 316)

Added Payment and Installation Methods

Placed DTI installation method first to indicate

preference and added Installation Requirements

Eliminated “Lock Pin-Collar Fasteners”

Eliminated punching holes full size

Cleaned up Rotational Capacity Testing Specifications

Eliminated welding on Eyebars

General Revision

Moved Section 815 Welding => 809 Welding to be

close to Section 807 Structural Metals

Consolidated Sections

Updated to include current shop practices

Welder IDs

Edge Blocks – removed and rely on AWS Bridge Welding Code.

Reduced the number of copies of reports

Specified non-destructive testing for aluminum

Required steel pipe and tubular section testing to

comply with AWS D 1.5

Consolidated Bridge Railing, Hand Railing and

Permanent Roadway Barriers

Moved Section 733 Roadway Barriers => Section 810

Incorporated NS-800-0026 Hand Railing

Temporary concrete barriers are still provided as per

section 713.06

New: Temporary concrete barriers provided by the Contractor will

become property of the Contractor

Improved and incorporated existing Cleaning and

Painting Supplemental Specification

Covers painting new and existing steel

List Zinc Paint System first to show preference as

primary paint system

Eliminated Water Borne Paint as a system

Added more enforcement

SSPC Abrasive and Surface Preparation Standards

Added additional predefined colors, Louisiana gray

became just gray

Provided a submittal section

Better defined the “Stripe Coat” and specified the

application sequence and requirements

Provided caulking to seal the perimeter of all faying

surfaces, cracks, crevices, joints, gaps less than ½ inch,

and skip welded joints

Better defined the section on “Protection of the

Environment, Public, and Workers”

Require stenciling the date of construction, coating

manufacturer, and type of paint system at specified

locations on structure

Moved the Containment System to new Section 817

Temporary Works

Improved section on galvanizing and metalizing

General Revision

Reorganized the section

Added a section for use of High Early Strength (HES)

Concrete

Changed the unit of payment to SqFt

New section Accommodates addition of future technologies and specifications

Added a Submittal Section

All bearings and bearing assemblies (pay items)

Contractor designed bearings Disc bearings

Pot bearings

Other bearings

Moved Joints from Section 805 => New 815 Joints Accommodates addition of future technologies and specifications

Joints Unsealed expansion joints

Sealed expansion joints

Joint Seals Preformed neoprene seal

Preformed silicone seal

Poured seal


Incorporated NS-800-0060 Deck Drainage System

New Section

Described Temporary Works and design requirements Based on AASHTO LRFD Bridge Construction Specifications

Based on Contractor’s means and methods

Established reviews and responsibilities Designed by EOR

Temporary Detour Bridge, Temporary Sheeting

Designed by Contractor

Construction Access Bridge, Contractor Sheeting, Falsework and

formwork, Cofferdams, Water Control Systems, Cleaning and Painting

Containment Systems, etc.


Incorporated NS items

Added materials Ultra-High Molecular Weight Polyethylene (UHMW-PE) Panels

Plastic Composite Marine Timbers (PCMT)

Extruded Rubber Fender Elements

Molded Rubber Fender Elements

Moved Section 809 => Section 820 Movable Bridges Allows for addition of Sections 821 Mechanical Systems, Section 822

Electrical Systems, and Section 823 Facilities in sequence

Added Definitions

Added requirements for a “System Integrator”

Requires the contractor to coordinate between all mechanical,

electrical, architectural, and structural components.

Submittals are all processed through the System Integrator to make

sure all components are compatible and work properly

Provides construction sequence information for various

types of movable bridges construction

Field testing requirements

Requirements for mechanical inspections during

construction

Added tolerances for vertical lift bridge towers.

Added standard item for “Temporary Operation and

Maintenance of Movable Span”

Added a 5% Retainage on all mechanical, electrical,

and facility items until acceptance of all O&M Manuals

New Section – many of the plan notes of the past have

been incorporated

Added Definitions specific to mechanical systems

New submittal section and definition of processes,

works in concert with Part I and Section 801

Moved counterweight ropes from Part X to Section 821,

because they are a fabricated item

New shop testing requirements

New requirements for mechanical shop inspections

FACILITIES:

Added Definitions

General Information concerning Mechanical Systems

Added Code Requirements

Added requirements for plumbing systems for

buildings: Material Specifications

Plumbing Specialties

Pressure Testing and Sterilization of Piping Systems

Added requirements for outdoor mechanical

equipment

Heating, Ventilating and Air Conditioning (HVAC)

Systems for Buildings including: Material Specifications

Testing, Adjusting and Balancing Information

Moved Section 730 => Part VIII Structures Section

Primary use is Movable Bridges, Facilities, Roadway

Lighting, and ITS

Organizational changes

Added definitions specific to this section

Better Defined Responsibilities / Expectations

New Section – incorporated many of the plan notes.

Consist mainly of exterior items of Bridge Operator’s

House.

May be used to construct other types building projects

throughout the state.

This Section consist of the following:

General Information concerning Facilities

Code Requirements

Requirements for building architectural components Foundations

Roofing Systems

Storefront Systems

Doors, Louvers, etc.


Performing more bridge evaluation through

instrumentation and proof loading

Section reference for non standard items during

development of new technologies


Rolled up existing non standard items

Section reference for non standard items during

development of new technologies

Some of the items covered: Bridge Superstructure Repair

Bridge Substructure repair

Tunnel Repair

Girder Strengthening

Structural concrete patching

Span movement (SPMT, etc.)

Structure jacking

Epoxy Injection

Bolt-rivet replacement (Structural steel)

THE END ?