This specification describes the minimum requirements for Vale's standard practice for Concrete drawings.

Transcription

1 016/09/0 1/5 1.0 PURPOSE This specification describes the minimum requirements for Vale's standard practice for Concrete drawings. The following drawings form part of this specification: D Anchor Bolt Selection Guide.0 DRAWINGS.1 GENERAL As stated in specification SPEC-08003, drawings are intended to be Design drawings. Sufficient layout, field investigation and design work must be done to prove fit and ensure sound design, showing enough information such that detailers can produce fabrication drawings. Concrete design drawings shall follow the requirements of Engineering Drawings in the ACI publication SP-66(04) and ACI Detailing Manual ACI-315 Manual of Concrete Practice. Concrete design drawings will include design information, such as grade of steel, dead load, live load, concrete strength, lap lengths, concrete cover, reinforcement, and all of the other information needed for detailing the reinforcement, creating placing drawings, forming, and placing the concrete. Forming and reinforcing information is normally combined on the same drawing, except on very large projects where forming and reinforcing information may be shown separately. Show, locate and describe all projections, recesses, keys, openings, inserts, etc. Enlarged details may be required to define complex arrangements. Chamfer or tool all exposed edges with a 45 corner. Normally all column bases and equipment bases shall have 1 ½ " chamfer; all curbs and walls shall have 3/4" chamfer. Indicate bearing conditions: (examples) "Undisturbed Natural Soil" or 1'-0 Granular "A" compacted to 100% Standard Proctor Density or Special requirements based on Soils Report.. PLANS AND ELEVATIONS The project drawings include Concrete General Notes that indicate; type of cement, concrete specifications, reinforcement specifications, slump, min. concrete protection for reinforcing, etc., and any other information pertinent to the job that is in addition to the standard specifications.

2 016/09/0 /5 All forming shapes are defined and dimensioned in the plans and elevations. Develop plans around the established building grid designations and dimensions. Face to face dimensions should be added. Building foundations would normally require one plan to depict both the footings and the top of the concrete in one view. Deep or complex foundations may require more than one plan for clarity. Footing outlines shall be shown in solid line (before backfill). Slabs on fill may be shown integral with the foundation plan, rather than being developed on a separate drawing, providing that the information can be presented clearly. Concrete structures require as many plans as necessary to depict each level clearly. An elevation for each wall shall be drawn showing all details for forming. Avoid indicating reinforcement in those wall portions which are cut in order to develop the elevation of a wall. The finish grade line and, where applicable, the water elevation must be shown for the full length of the wall. (Solid line if on near side, long dash line if on far side)..3 WALL SECTIONS Only main dimensions are required including sizes of footings - (all forming shapes are already covered on the plans and elevations). Elevations of bottom of footings or walls, ledges, finish grade and top of walls shall be shown..4 DETAILS Develop special details showing additional reinforcing, e.g. corners or openings as required. All reinforcing, must conform to minimum spacing as specified in CSA A3.1. Therefore, areas of dense reinforcing may have to be laid out to large scale and subsequently, detailed to prove the minimum spacing requirements. Show details on separate drawings where necessary to avoid cluttering of plans and elevations. Foundation details showing backfill, insulation, weeping tile and similar requirements should be developed with the building general sections and details rather than becoming part of the concrete drawings. Do not incorporate foundation details with details showing reinforcing. In some instances, a separate plan for drainage and weeping tile may be required..5 REINFORCING The metric designation shall be used: 1".

3 016/09/0 3/5 The primary reinforcing must be shown nearest the face of the concrete and the secondary reinforcing away from the concrete face. Clearly indicate all laps. Standard laps should not be dimensioned as they should be covered in the General Notes. The extent of starter bars, additional corner reinforcing and bars for moment reinforcing must be clearly drawn and dimensioned..6 ANCHOR BOLTS Anchor bolt size and type is specified by the Engineer on an anchor bolt schedule based on required application. An anchor bolt schedule is applied to the project drawing as a CAD cell. See Standard Drawing D for Anchor Bolt Selection Guide. For concrete structures and foundations that support steel structures, anchor bolts may be shown on the Concrete drawings but are only specified and located on the structural drawings. References to structural drawings must be clearly indicated. All miscellaneous anchor bolts are located and specified on the concrete drawings. Anchor Bolt Mark Numbers are assigned as follows:.7 PIERS, COLUMNS AND BEAMS Detail each pier and column, or group of common piers and columns showing a plan and elevation, fully dimensioned for forming and reinforcing. Identify all piers and columns and title by their assigned grid designation..8 SLABS Dimension the plan fully. Show all openings, curbs, control joints, expansion joints, protrusions and depressions. Normally, floor slopes may be shown on the plan, however, complex floor slabs may require that slopes are developed on a separate drawing. Care must be exercised to develop floor slopes properly, listing all pertinent elevations and direction of slope. Locate and dimension curbs including those supporting masonry walls.

4 016/09/0 4/5 3.0 REFERENCE DOCUMENTATION The following documents are related to this specification and shall be used to their latest revision: SPEC-0800 SPEC SPEC SPEC SPEC ACI-315 CSA -A D-Series D-Series D-Series Drawings Administrative Requirements Drawings Technical Requirements - General Drawings Technical Requirements Structural Steel Cast-in-Place Concrete Steelwork General Notes ACI Manual of Concrete Practice Concrete Materials and Construction Stobie #9 Headframe Good Examples of Typical Concrete Drawings Frood Stobie Mill Good Examples of Typical Concrete Drawings CC Smelter - FBR Good Examples of Typical Concrete Drawings

5 016/09/0 5/5 4.0 REVISION AND TRANSITION NOTES Revision notes describe: what was changed, and if applicable, why it was changed, and the plan to implement the change, including whether changes are retroactive. Note: The revision notes are a summary of the changes and may not necessarily be a complete list. A risk code is entered for each revision and if applicable, the revision notes will describe how risk was addressed for the revision. Risk Code A Risk Category This revision is a minor change and/or introduces no risk. B C Risk has been addressed for this revision by the reviewer and approver. Low risk or no new hazards identified. For this revision, a PHR or other risk management tool has been used to address risk and minimize hazards. This risk assessment has been documented and is available through Central Engineering. Rev 1 Revision Notes Document format and number changed due to Vale Engineering Document Program changes in 011/01. Previous Standard Number was Rev 5. This specification is part of a set of specifications that define the administrative and technical requirements for drawings. Some administrative content has been removed from this specification and inserted into the appropriate specification. Document Reviewed Format updated Minor clerical changes Risk Code Approved by Reviewed by Issue Date YYYY/MM/DD --- AA AD 013/03/08 A A.Alaeddine A.Delost 016/09/0