This article is about SAES-Q-012 which is about Criteria for Design and Construction of Precast and Prestressed Concrete Structures and download SAES-Q-012 PDF for Engineers, supervisors and project managers, QCs, QC Supervisors. This is saudi aramco standards of Civil Engineering based on international codes and standards and useful for Civil Construction knowledge to get job as engineers, QC Supervisors and QC managers, Engineering managers and technicians.
SAES-Q-012 PDF Download
SAES-Q-012Criteria for Design and Construction of Precast and Prestressed Concrete Structures
This SAES-Q-012 standard covers the design, material specifications, manufacturing, and erection of precast and prestressed concrete products, including building components such as columns, beams, hollow core slabs, single and double tees, wall panels, decorative fences, and marine trestles, etc.
Precast concrete is the concrete that is produced by an approved concrete plant and manufactured under plant-controlled conditions, following the guidelines of SAEP-1152.
Industry Codes and Standards for SAES-Q-012
Here are the industry codes and standards related to precast and prestressed concrete:
Precast and Prestressed Concrete Institute (PCI):
- PCI MNL-116: Manual for Quality Control for Plants and Production of Precast and Prestressed Concrete Products, Fourth Edition
- PCI MNL-117: Manual for Quality Control for Plants and Production of Architectural Precast Concrete Products, Third Edition
- PCI MNL-120: PCI Design Handbook – Precast and Prestressed Concrete
- PCI MNL-122: Manual for Structural Design of Architectural Precast Concrete, Second Edition
- PCI MNL-123: Design and Typical Details of Connections for Precast and Prestressed Concrete
- PCI-MNL-127: Erector’s Manual: Standards and Guidelines for the Erection of Precast Concrete Products
- PCI-MNL-132: Erection Safety Manual for Precast and Prestressed Concrete
- PCI MNL-135: Tolerance Manual for Precast and Prestressed Concrete Construction
- PCI-MNL-138: Connection Manuals for Connections for Precast and Prestressed Concrete
- PCI-MNL-140: Seismic Design of Precast/Prestressed Concrete Structures
American Concrete Institute (ACI):
- ACI 201.2R: Guide to Durable Concrete
- ACI 211.1: Standard Practice for Selecting Proportions for Normal, Heavyweight, and Mass Concrete
- ACI 211.2: Standard Practice for Selecting Proportions for Structural lightweight concrete
- ACI 305R: Hot Weather Concreting
- ACI 318M: Building Code Requirements for Reinforced Concrete
- ACI 347R: Guide to Formwork for Concrete
- ACI 350: Code Requirements for Environmental Engineering Concrete Structures and Commentary
- ACI 533: Guide for Precast Concrete Wall Panels
- ACI SP-66: Detailing Manual – Details and Detailing of Concrete Reinforcement
American Society for Testing and Materials (ASTM):
- ASTM A36: Standard Specification for Carbon Structural Steel
- ASTM A53: Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless
- ASTM A325: Standard Specification for Structural Bolts, Steel, Heat Treated, 120/105 ksi Minimum Tensile Strength
- ASTM A416: Standard Specification for Steel Strand, Uncoated Seven-Wire for Prestressed Concrete
- ASTM A767: Standard Specification for Zinc-Coated (Galvanized) Steel Bars for Concrete Reinforcement
- ASTM A775: Standard Specification for Epoxy-Coated Reinforcing Bars
- ASTM A884: Standard Specification for Epoxy-Coated Steel Wire and Welded Wire Fabric for Reinforcement
- ASTM A992/A992M: Standard Specification for Structural Steel Shapes
- ASTM C39: Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens
- ASTM C330: Standard Specification for Lightweight Aggregates for Structural Concrete
American Welding Society (AWS):
- AWS D1.1: Structural Welding Code – Steel
- AWS D1.4: Structural Welding Code – Reinforcing Steel
British Standards Institution (BS):
- BS 1881 Part 124: Methods for Analysis of Hardened Concrete
Saudi Arabian Standards Organization (SASO):
- SSA-2/1992: Steel Bars for the Reinforcement of Concrete
- SSA-224/1981: Steel Fabric for Reinforcement of Concrete
Please note that this list may not be exhaustive, and there may be additional codes and standards specific to certain regions or applications.
design:
In the design of precast and prestressed concrete, the following requirements and guidelines are specified:
4.1: The structural design of all members and connections is the responsibility of the Contractor and should be performed by a qualified and competent structural engineer.
4.2: The design should comply with the standards and guidelines provided by ACI 318/318M (Building Code Requirements for Reinforced Concrete), PCI Design Handbook (MNL-120), and PCI Manual (MNL-122). Prior to precast concrete fabrication, design calculations, design drawings, shop drawings (including lifting details and Safe Working Load – SWL capacities) should be submitted to Saudi Aramco for review and approval. It’s important to note that the review by Saudi Aramco does not relieve the precast concrete manufacturer of any design responsibility.
4.3: The analysis and design of precast and prestressed concrete structures should be based on the guidelines presented in the Prestressed Concrete Institute (PCI) Design Handbook.
4.4: Connections for precast and prestressed concrete should adhere to the specifications outlined in PCI-MNL 123 and PCI-MNL 138.
4.5: Seismic design for precast and prestressed concrete should follow the guidelines provided in PCI-MNL 140.
4.6: The minimum 28-day design compressive strength for standard weight concrete should be 34.5 MPa (5000 psi). The minimum cement content for precast concrete should be in accordance with Section 5.1. For prestressed units, the release strength should be a minimum of 24.1 MPa (3500 psi).
4.7: The minimum floor and roof live loads should be determined based on SAES-M-100 “Saudi Aramco Building Code.”
4.8: Precast concrete work should be designed to support all indicated dead and superimposed loads, including hanging loads, lateral loads, and loads from storage, handling, and transportation.
4.8: Design flexural members with sufficient camber to offset deflection under superimposed dead loads. The camber should be shown on the design drawings.
4.9: The proportions of ingredients in the concrete mix should be selected in accordance with the provisions of ACI 211.1 for normal weight concrete and ACI 211.2 for lightweight concrete. The water-cement ratio (w/c) should not exceed 0.40.
4.10: ACI 201.2R “Guide to Durable Concrete” should be referenced to specify special concreting and concrete protection requirements. The exposure of concrete to corrosive materials, stray electrical current, and abrasion should be evaluated, and appropriate protective measures for the concrete and reinforcement should be provided.
These guidelines ensure that the precast and prestressed concrete structures are designed and constructed in accordance with industry standards to meet the required performance and durability criteria.
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FAQs about SAES-Q-012 PDF
The structural design of precast and prestressed concrete members is the responsibility of the Contractor and should be performed by a qualified and competent structural engineer.
The design should comply with the standards and guidelines provided by ACI 318/318M, PCI Design Handbook, and PCI Manual. These resources provide industry-accepted requirements for reinforced concrete design.
Seismic design for precast and prestressed concrete should follow the guidelines provided in PCI-MNL 140. These guidelines help ensure structures can withstand seismic forces and minimize the risk of damage during earthquakes.
The minimum 28-day design compressive strength for standard weight concrete should be 34.5 MPa (5000 psi). For prestressed units, the release strength should be a minimum of 24.1 MPa (3500 psi). These requirements ensure the concrete’s strength meets the structural demands.
Yes, ACI 201.2R “Guide to Durable Concrete” should be referenced to specify special concreting and concrete protection requirements. This guide provides recommendations for protecting concrete from corrosive materials, stray electrical current, abrasion, and other factors that can affect its durability and longevity.