This is a Reference Specification that the Architect/Engineer can apply to any construction repair and rehabilitation project involving structural concrete by citing it in the Project Specifications. Mandatory requirements and optional requirements checklists are provided to assist the Architect/Engineer in supplementing the provisions of this Specification, as required or needed, by designating or specifying individual project requirements. The first section covers general construction requirements for repair Work. The second section covers shoring and bracing of the structure or member to be repaired, and addresses sequencing of repair Work as the structure is unloaded and reloaded. The third section covers concrete removal and preparation of the concrete substrate for repair and defines common equipment and methods. The next five sections cover materials and proportioning of concrete; proprietary cementitious and polymer repair materials; reinforcement; production, placing, finishing, and curing of repair materials; formwork performance criteria and construction; treatment of joints; embedded items; repair of surface defects; mockups, and finishing of formed and unformed surfaces. New sections included in this edition of the Specification includes waterproofing cracks by chemical grout injection, architectural concrete repair, structural precast concrete repair, unbonded post-tensioned concrete repair, overlays, protective membranes, and cathodic protection by galvanic anodes. Provisions governing testing, evaluation, and acceptance of repair materials as well as acceptance of the repair Work are included. Sections 16, 17 and 18 incorporate by reference other ACI specifications into this ACI Standard: ACI SPEC-503.7 for crack repair by epoxy injection, ACI SPEC-506.2 for shotcrete, and ACI SPEC-440.12 for wet-layup FRP.
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Serviceability is considered a critical factor in the management of concrete bridges and structures. Typical components for evaluating the serviceability limit state include cracking, deflection, and vibration. Additionally, to ensure the adequate performance of load-bearing members, proper evaluation methodologies should be adopted. Although numerous research projects have been undertaken to examine the serviceability and performance assessment of concrete bridges and structures, significant endeavors are still required to address unexplored challenges. Of interest are the development of simplified prediction and appraisal approaches; novel techniques for quantifying stress levels; serviceability criteria under unusual distress; and the characterization of structural responses when exposed to blast, wind, and seismic loadings. This Special Publication contains 11 papers selected from technical sessions held in the ACI Fall Convention in November 2024. The Editors wish to thank all contributing authors and anonymous reviewers for their rigorous efforts. The Editors also gratefully acknowledge Ms. Barbara Coleman at ACI for her knowledgeable guidance. Yail J. Kim, University of Colorado Denver, Editor Hyeon-Jong Hwang, Konkuk University, Editor
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This Design Specification provides minimum requirements for performing a service life evaluation as part of the design process for new structures and implementing the results of the evaluation into the construction phase. This Design Specification can be used as part of a design-bid-build project, a design-build project, or other project delivery options. The Design Specification is independent of the specific model or technique used to perform the service life evaluation. Although service life modeling is commonly used to evaluate chloride transport causing corrosion deterioration, the approach outlined in this Design Specification can be used for any deterioration mechanism that is capable of being modeled. The service life engineer performing the evaluation can either be the prime consultant or a subconsultant. A service life report is produced as part of this specification, documenting the service life evaluation, followed by a service life record report documenting the implementation into the new construction.
Keywords:
degradation mechanisms; deterministic modeling; durability; performance design; probabilistic modeling; quality control/quality assurance; service life prediction.
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Bentley RAM Connection offers the best flexibility for the design of different shear, moment, braces, splices and base plates connection types. Perform analysis and design of virtually any connection type and verify your connections in seconds, all with comprehensive calculations, including seismic compliance. Increase your productivity with optimized workflows and full integration of 3D design models, including the ability to customize the application with your preferences. Efficiently design and optimize a myriad of connections included in the AISC (ASD and LRFD), EC3, IS, GB, and BS specifications. Quickly complete all your connections, such as shear and moment connections, braced frame connections, column/beam splices, and base plates.
Capabilities:
- Comply with seismic requirements
Design and detail seismic force-resisting systems, generating seismic loads according to the relevant building code. Consider these forces in the design of elements and, where applicable, the design of frames and the larger structural system. Enforce the ductility requirements of the selected design code in element proportioning and detailing.
- Design structural steel connections
Design and detail structural steel connections, including beam-to-beam, beam-to-column, brace end, and complex multi-member connections. Simplify the arrangement of plates, stiffeners, bolts, and welds with a comprehensive library of standard connection types. Easily compare the economy and practicality of connection scenarios.
- Design to international standards
Extend the reach of your business practice and take advantage of global design opportunities by using a wide range of international standards and specifications in our design products. Complete your designs with confidence thanks to extensive support of international standards.
- Produce structural design documentation
Generate structural design documents including necessary plans and elevations that are used to convey the design intent. Changes made to the 3D model are automatically updated in the documentation.
- Produce structural details
Produce detailed 2D drawings directly from design results established in the structural model. Customize the style and format of the drawings using settings offered within the software.
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CEB Bulletin No. 235 Serviceability Models - Behaviour and Modelling in Serviceability Limit States including repeated and sustained loads - Progress Report
Edition: 1st Publish Date: 1997 ISBN: 978-2-88394-034-5 Published By: CEB-FIP Related Links:
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Could you please share the following guideline?
Title: Guidelines for Evaluating the Performance of Highway Sound Barriers
(ISBN-13) 978-0-7844-0199-6
(ISBN-10) 0-7844-0199-3
Published by: ASCE - American Society of Civil Engineers, Reston, VA
Published year: 1996
Abstract: Prepared by the Highway Innovative Technology Evaluation Center, a CERF Service Center.
This report presents the HITEC evaluation plan for U.S. Gypsum's Sight and Sound Screen. The Sight and Sound Screen is a post-and-panel wall system designed to act as a sight and sound barrier for highways and as a privacy system for residential and commercial property owners. The HITEC evaluation will measure the performance of the barrier against the criteria presented in this report, which reflect the needs of the highway community. Although this evaluation plan was tailored to one product, as a service to state and local transportation officials the report was expanded to provide guidelines that can be adapted for use with other types of sound wall systems.
(1) EN 1993‑1‑8 provides rules for structural design of joints subject to predominantly static loading using all steel grades from S235 up to and including S700, unless otherwise stated in individual clauses.
NOTE As an alternative to the design rules provided in Clause 9, the design rules given in CEN/TS 1993‑1‑8011 “Eurocode 3: Design of steel structures — Part 1-801: Hollow section joints design according to the component method” can be used.
(2) The provisions in this document apply to steels complying with the requirements given in EN 1993‑1‑1 and to material thickness greater than or equal to 3 mm, unless otherwise stated in individual clauses.
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Classification and other requirements are specified for numerous grades of flux cored and metal cored stainless steel electrodes and rods. New classifications include a duplex alloy and three high carbon classifications not previously classified. New classifications also include all of the metal cored electrodes that are currently in A5.9/A5.9M. In the next revision of A5.9/A5.9M these metal cored electrodes will be deleted from that specification.
Designations for the flux cored electrodes and rods indicate the chemical composition of the weld metal, the position of welding, and the external shielding gas required (for those classifications for which one is required). Designations for the metal cored electrodes indicate the chemical composition of the weld metal only.
The requirements include general requirements, testing, and packaging. Annex A provides general application guidelines for individual alloys and other useful information about welding electrodes. ANSI Approved. approx. 70 pages. ISBN: 978-0-87171-800-6
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