Category Archives: ASCE

ASCE 19-16

Structural Applications of Steel Cables for Buildings

Published by: 2016-12-08 / 2016-12-08 / 69 pages

Prepared by the Structural Applications of Steel Cables for Buildings Standard Committee of the Codes and Standards Activities Division of the Structural Engineering Institute of ASCE

Structural Applications of Steel Cables for Buildings, Standard ASCE/SEI 19-16, provides requirements for the structural design, fabrication, and installation of cables for use as static structural elements to support and brace buildings and other cable-supported structures. Covering both carbon-steel and stainless-steel cables, this standard addresses roofs, floors, curtain walls, masts, and nets, but it is not applicable for structures subjected primarily to vehicle loads or for guyed electrical transmission towers.

Topics include contract documents and shop drawings; design considerations; cable materials; protective coatings; fabrication, shipping, and receiving; erection; and postconstruction considerations and inspection. In addition, appendixes review cables and fittings, saddles, clamps, cable fatigue, and the design of earthquake-load-resistant sway bracing for nonstructural components of buildings.

Intended for use by structural engineers, architects, cable manufacturers and fabricators, and building officials, Standard ASCE/SEI 19-16 is a thorough revision of previous editions of ASCE 19. It includes a new appendix to address small-diameter cables used for seismic bracing of nonstructural building elements, as well as updated nomenclature to ensure consistency with other industry standards.

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ASCE 39-15

Guidelines for Operational Hail Suppression Programs

Published by: American Society of Civil Engineers / 2015-05-15 / 62 pages
Prepared by the Atmospheric Water Management Standards Committee of the Standards Development Council of the Environmental and Water Resources Institute of ASCE

Guidelines for Operational Hail Suppression Programs, ANSI/ASCE/EWRI 39-15, describes the process for designing, conducting, and evaluating operations to suppress the formation of hail. Hail is the product of vigorous, deep convection in the atmosphere. The most common approaches to hail suppression involve seeding a storm with nucleating agents using airborne, ground-based, or rocket and artillery delivery systems.

Although the effects of seeding clouds for hail suppression are not fully understood, five concepts are commonly employed in successful projects: beneficial competition, early rainout, trajectory lowering, promotion of coalescence, and dynamic effects. The standard covers the design of hail suppression operations, including a definition of project scope, selecting a seeding agent, delivery methods, meteorological data collection and forecasting, selection and siting of equipment, legal issues, and environmental concerns. It also considers important factors in conducting a hail-suppression program, including the operations manual, personnel requirements, operational decision-making, communications, safety, and public relations. Finally, it describes approaches to evaluating the project area and measures to evaluate effectiveness using both direct and secondary evidence. A glossary and references are included.

Standard ANSI/ASCE/EWRI 39-15 uses the best available scientific and technical knowledge to describe a process that optimizes the likelihood of success. It will be of interest to hydrologic engineers, meteorologists, agricultural producers, property insurers, and other interests vulnerable to hail damage.

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This publication is available both in printed and PDF edition.

ASCE 36-15

Standard Design and Construction Guidelines for Microtunneling, CI/ASCE 36-15

Published by: American Society of Civil Engineers / 2015-06-01 / 135 pages
Prepared by the Standard Design and Construction Guidelines for Microtunneling Committee of the Construction Institute of ASCE

Standard Design and Construction Guidelines for Microtunneling, Standard ASCE/CI 36-15, covers the planning, design, materials, and construction for this trenchless method of installing pipelines. Microtunneling projects involve a remote-controlled boring machine, a laser guidance system, a jacking system for thrust, and continuous pressure on the face of the excavation to balance groundwater and earth pressures. The use of microtunneling has become a widely accepted means of pipeline construction, and this standard takes into account advances in technology and construction practice developed over the past 15 years.

This new edition of Standard 36 expands and modifies the earlier standard so that users can better understand both the key concepts and technical details involved in a microtunneling project. The section on preparing contract documents, particularly drawings, technical specifications, and contractual specifications, has been thoroughly updated. Also revised are the qualifications of engineers who design microtunneling projects and of the contractors who construct them. New sections have been added on sustainability; regulations; detailed site investigations, especially geotechnical aspects; microtunneling design elements and operations; construction support services; and aspects of measurement and payment.

Standard 36-15 is a vital reference for owners, engineers, contractors, suppliers, and manufacturers working on pipeline projects where microtunneling is an attractive option.

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This publication is available both in printed and PDF edition.

ASCE 10-15

Design of Latticed Steel Transmission Structures

Published by: American Society of Civil Engineers / 2015-04-20 / 90 pages
Prepared by the Design of Steel Transmission Towers Standards Committee of the Codes and Standards Activities Division of the Structural Engineering Institute of ASCE

This standard provides requirements for the design, fabrication, and testing of members and connections for latticed steel electrical transmission structures. Covering guyed and self-supporting structures, these requirements are applicable to hot-rolled and cold-formed steel shapes. The standard specifies the design criteria for structure components – members, connections, and guys – to resist design-factored loads at stresses approaching yielding, buckling, or fracture. This new edition, which replaces the previous Standard ASCE 10-97, presents minor changes to the design requirements and introduces new sections on redundant members, welded angles, anchor bolts with base plates on leveling nuts, and post angle member splices.

Topics include:

  • loading, geometry, and analysis;
  • design of members, including compression members, tension members, and beams;
  • design of connections, including fasteners, minimum distances, and attachment holes; detailing and fabrication;
  • full-scale structure testing; structural members and connections used in foundations; and
  • quality assurance and quality control.

A detailed commentary contains explanatory and supplementary information to assist users of the standard. In addition, one appendix offers 17 design examples, and a new appendix offers guidance for evaluating older (legacy) electrical transmission towers.

Standard ASCE/SEI 10-15 is a primary reference for structural engineers designing latticed steel electrical transmission structures, as well as for other engineers, inspectors, and utility officials involved in the electric power transmission industry.

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This publication is available both in printed and PDF edition.

ASCE Manual of Practice No. 108

Pipeline Design for Installation by Horizontal Directional Drilling (MOP 108)

Published by: American Society of Civil Engineers / 2014-07-28 / 80 pages
Prepared by the Horizontal Directional Drilling Design Guideline Task Committee of the Technical Committee on Trenchless Installation of Pipeline Systems of the Pipeline Division of ASCE

This Manual of Practice addresses the design of major pipeline or duct segments to be installed by horizontal directional drilling (HDD). HDD is a trenchless excavation method that is accomplished in three phases and uses a specialized horizontal drilling rig with ancillary tools and equipment. Topics include predesign surveys, drilled path design, pipe design, construction impact, and as-built documentation. This new edition captures advances in drilling equipment, improvements for tracking, and considerations for using alternative pipe materials.
MOP 108 is a guide for design engineers who have previous experience and knowledge of the HDD installation process and pipeline design methods.

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This publication is available both in printed and PDF edition.

ASCE 30-14

Guideline for Condition Assessment of the Building Envelope

Published by: American Society of Civil Engineers / 2014-07-15 / 46 pages
Prepared by the Subcommittee on Condition Assessment of the Building Envelope of the Committee on Structural Condition Assessment and Rehabilitation of Buildings of the Codes and Standards Activities Division of the Structural Engineering Institute of ASCE.

Guideline for Condition Assessment of the Building Envelope, ASCE/SEI 30-14, provides a guideline and methodology for assessing the condition and performance of existing building envelope systems and components, as well as identifying problematic and dysfunctional elements. The adaptive reuse, rehabilitation, and improvement of existing buildings include an accurate assessment of the building envelope. Failures of the building envelope can result not only in structural damage but also in safety or health problems. Proper evaluation of the building envelope is often the first step toward stabilization and rehabilitation of a building.

Revised and reorganized, Standard ASCE/SEI 30-14 includes a new section on fabric structures and updates to figures and referenced standards. By compiling basic information, procedures, and references into a single volume, this Standard assists an investigator to develop a logical approach to assessing the building envelope and to focus on the underlying causes of deficiencies and distress rather than outward symptoms.

This Standard updates and replaces the previous Standard ASCE/SEI 30-00. A companion standard, Guideline for Structural Condition Assessment of Existing Buildings, Standard 11, addresses the structural assessment of existing buildings.

Standard ASCE/SEI 30-14 serves structural engineers, design professionals, code officials, and building owners in evaluating the envelope systems of existing buildings.

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This publication is available both in printed and PDF edition.

ASCE 41-13

Seismic Evaluation and Retrofit of Existing Buildings

Published by: American Society of Civil Engineers / 2014-06-15 / 555 pages
Sponsored by the Structural Engineering Institute of ASCE

Seismic Evaluation and Retrofit of Existing Buildings describes deficiency-based and systematic procedures that use performance-based principles to evaluate and retrofit existing buildings to withstand the effects of earthquakes. This next-generation standard combines the evaluation and retrofit process and puts forth a three-tiered process for seismic evaluation according to a range of building performance levels – from collapse prevention to operational – that marry targeted structural performance with the performance of nonstructural elements. The deficiency-based procedures allow the evaluation and retrofit effort to focus on specific potential deficiencies deemed, on the basis of past earthquake observations, to be of concern for a permissible set of building types and heights. The systematic procedure, applicable to any building, sets forth a methodology to evaluate the entire building in a rigorous manner.

Analysis procedures and acceptance criteria are established and requirements put forth for foundations and geologic site hazards; components made of steel, concrete, masonry, wood, and cold-formed steel; architectural mechanical and electrical components and systems; and seismic isolation and energy dissipation systems. In addition, screening checklists are provided for a variety of building types and seismicity levels in support of the Tier 1 process.

This standard updates and replaces the previous Standard ASCE/SEI 41-06, Seismic Rehabilitation of Existing Buildings, as well as Standard ASCE/SEI 31-03, Seismic Evaluation of Existing Buildings.

Standard ASCE/SEI 41-13 serves structural engineers, design professionals, code officials, and building owners interested in improving the seismic performance of existing buildings.

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This publication is available both in printed and PDF edition.

ASCE 7-10 Wind Loads

Wind Loads: Guide to the Wind Load Provisions of ASCE 7-10

Published by: American Society of Civil Engineers / 2013 / 185 pages
This helpful guide focuses on the wind load provisions of Minimum Design Loads for Buildings and Other Structures, Standard ASCE/SEI 7-10, that affect the planning, design, and construction of buildings for residential and commercial purposes. The 2010 revision of the Standard significantly reorganized the wind load provisions, expanding them from one to six chapters. Simplified methods of performing calculations for common situations were added to the Standard, and guidelines for components and cladding were gathered in a single chapter.

Wind Loads provides users with tools and insight to apply the Standard in everyday practice. This revised and updated guide introduces readers to the relevant sections of the Standard and provides a comprehensive overview of the design procedures and the new wind speed maps. Ten chapters with 14 worked examples demonstrate the appropriate use of analytical and simplified procedures for calculating wind loads for a variety of common structure types. The guide also answers more than 30 frequently asked questions, grouped by topic. This book is an essential reference for practicing structural engineers, as it offers the most authoritative and in-depth interpretation of the wind loads section of Standard ASCE/SEI 7-10.

About the Authors: Kishor C. Mehta, Ph.D., P.E., Horn Professor of Civil Engineering, is the founder and former director of Wind Science and Engineering Research Center at Texas Tech University, Lubbock, Texas. He served as chairman of the ASCE 7 Task Committee on Wind Loads for ASCE 7-88 and ASCE 7-95. He is lead author of ASCE guides to the use of wind load provisions of ASCE 7-95, ASCE 7-98, ASCE/SEI 7-02, and ASCE/SEI 7-05. William L. Coulbourne, P.E., is Director of Wind and Flood Hazard Mitigation for the Applied Technology Council, with his office located in Rehoboth Beach, Delaware. He is a member of the ASCE 7 Wind Load Task Committee and the ASCE 7 Main Committee, and he coauthored the wind loads guide to ASCE/SEI 7-05.

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This publication is available both in printed and PDF edition.

ASCE 56-10 / 57-10

Guidelines for the Physical Security of Water Utilities (ANSI/ASCE/EWRI 56-10) and Wastewater / Stormwater Utilities (ANSI/ASCE/EWRI 57-10)

American Society of Civil Engineers / 2011 / 126 pages

These water utility guidelines recommend physical and electronic
security measures for physical protection systems to
protect against identifi ed adversaries, referred to as design basis
threats (DBTs), with specifi ed motivations, tools, equipment,
and weapons. Additional requirements and security equipment
may be necessary to defend against threats with greater
capabilities.

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This publication is available both in printed and PDF edition.

ASCE 59-11

Blast Protection of Buildings (ASCE/SEI 59-11)

American Society of Civil Engineers / 01-Aug-2011 / 125 pages

This voluntary Standard provides minimum planning, design,
construction, and assessment requirements for new and existing
buildings subject to the effects of accidental or malicious explosions,
including principles for establishing appropriate threat
parameters, levels of protection, loadings, analysis methodologies,
materials, detailing, and test procedures. However, this
Standard is not applicable for the mitigation of potential accidents
involving ammunition or explosives during their development,
manufacturing, testing, production, transportation, handling,
storage, maintenance, modifi cation, inspection, demilitarization,
or disposal.

This Standard is intended to supplement and not supersede the
requirements of the governing building code and other applicable
standards and laws. The omission of any specifi c material or
system does not necessarily preclude its use in accordance with
this Standard, as long as all applicable provisions are satisfi ed.
This Standard does not prescribe requirements or guidelines for
the mitigation of progressive collapse or other potential postblast
behavior.

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This publication is available both in printed and PDF edition.