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  • 被代替 ACI 315-1999 International Workshop on High Performance Concrete

    发布日期: 1999-08-31 语言: 英文 来源: 新信bet9登陆地址
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    语言:英文
    适用范围:FOREWORD Increased use of computers has led to sophisticated techniquesof structural analysis and has increased manufacturing andfabrication capabilities. This added degree of sophistication hasresulted in more complex structures being designed and built withstructural members that have long spans, shallow depths, andcontain a high percentage of reinforcing steel. In the past, during the course of developing placing drawings,the detailer often suggested solutions in areas where the detailswere incomplete and where the reinforcing steel appeared to haveconstructibility problems. Usually these solutions were used onlyafter their acceptance by the architect/ engineer (A/E).Unfortunately, many problems do not surface during the detailingphase but rather occur during construction. The A/E and thecontractor, working together, then solve the problem. The A/E prepares the structural design to meet the requirementsof the applicable building code and provides sufficient definitionthrough the contract documents to convey all the requirements fordetailing reinforcing steel. It is then the detailer'sresponsibility to develop all of the dimensions and quantities ofthe reinforcing steel to conform with the structural drawings andproject specifications of the A/E. As the complexity of design and construction increases, it isimperative that both the A/E and detailer understand theirresponsibilities clearly. The responsibilities of the A/E and thedetailer, as they apply to the reinforced-concrete industry, arestated more clearly by the following separate sections. This standard presents values in inch-pound and SI units. Hardmetric values are usually not exact equivalents; therefore, eachsystem is to be used independently of the other. Combininginch-pound and hard metric values can result in nonconformance withthe standard. Soft metric values are exact equivalents, socombining inch-pound and soft metric values conforms to thestandard.
  • 有效 ACI 364.16T-2018 Report on the Erosion of Concrete in Hydraulic Structures

    发布日期: 2018-01 语言: 英文 来源: 新信bet9登陆地址
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    语言:英文
    适用范围:There is no abstract currently available for this document
  • 被代替 ACI MCP-4-2015 Shrinkage and Creep of Concrete

    发布日期: 2015-01 语言: 英文 来源: 新信bet9登陆地址
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    被代替 ACI MCP-4-2015 Shrinkage and Creep of Concrete
    语言:英文
    适用范围:The ACI Manual of Concrete Practice volumes are issued annuallyand include the latest ACI standards and committee reports whenpublished. Part 4—ACI 347R-14 to ACI 355.2-07
  • 有效 ACI SP-245 CD-2007 Durability and Sustainability of Concrete Structures (DSCS-2018)

    发布日期: 2007-01 语言: 英文 来源: 新信bet9登陆地址
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    语言:英文
    适用范围:There is no abstract currently available for this document
  • 废止 ACI C-16-1992 Recommendations for Cast-In-Place Nonreinforced Concrete Pipe

    发布日期: 1992-01 语言: 英文 来源: 新信bet9登陆地址
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    适用范围:Preface The ACI Compilation Series offers an opportunity to gathertogether materials previously published in Institute periodicals asa compact and ready reference on a specific topic. The material ina compilation does not necessarily represent the opinion of an ACItechnical committee-only the opinions of the individual authors.However, the information presented here is considered a valuableresource for readers interested in the subject.
  • 有效 ACI 304.6R-2009 Guide for the Selection of Materials for the Repair of Concrete

    发布日期: 2009-03 语言: 英文 来源: 新信bet9登陆地址
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    适用范围:This guide contains background information to be considered whenusing the VMCM method. A discussion of other types ofcontinuous-measurement equipment (conveyor belt scales orweigh-in-motion scales) is outside the scope of this report.
  • 有效 ACI 325.14R-2017 Guide for Design and Proportioning of Concrete Mixtures for Pavements

    发布日期: 2017-06 语言: 英文 来源: 新信bet9登陆地址
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    适用范围:General This document is intended to be used as a supplement to ACI 211.1, specifically for paving concrete mixtures. ACI 211.1 provides an in-depth discussion of concrete mixture characteristics and technology. It is unnecessary to repeat this information within this guide. Rather, this guide will point out the concepts specific to paving mixtures that are not fully developed in ACI 211.1. Additionally, concepts of materials’ compatibility, durability, solutions for alkali-silica and sulfate reactions, and aggregate grading optimization are more fully developed in this document. Mixtures considered in this document would be suitable as paving mixtures for airports, highways, streets, or parking lots.
  • 有效 ACI 363.2R-2011 Guide to Quality Control and Assurance of High-Strength Concrete

    发布日期: 2011-07 语言: 英文 来源: 新信bet9登陆地址
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    适用范围:This guide discusses QC and testing practices of HSC. HSCusually is associated with structures that have been optimized forperformance. Therefore, a high degree of confidence in concretequality should be achieved through the inspection and testingprocess. This process can be conducted by the producer andcontractor as QC and by the owner or the owner's representative asquality assurance (QA). Those involved in QC and testing need toknow the unique characteristics of HSC to better assist thearchitect/engineer in evaluating the structure's potentialperformance. Concrete with a specified compressive strength of 10,000 psi (70MPa) can be produced from local aggregates in all areas of the U.S.and Canada. When the specified strength substantially exceeds thatproduced previously in a particular market area, special measuresare necessary to make a successful progression to the use of thehigher-strength concrete. This guide details those measures. Because the definition of HSC has changed over the years, ACICommittee 363 defined a range of concrete strengths for itsactivities, as explained in ACI 363R. For the purpose of thisguide, HSC is defined as having a specified compressive strength of8000 psi (55 MPa) or greater, and it does not includepolymer-impregnated concrete, epoxy concrete, or concrete made withartificial normalweight and heavyweight aggregates. Changes inmaterial properties, production and inspection techniques, ortesting methods occur continuously from lower-strength tohigher-strength concretes. Experience shows that in most cases, thespecial measures recommended in this guide should be applied forconcrete with compressive strength greater than approximately 8000psi (55 MPa).
  • 有效 ACI SP-220-2004 Manual of Concrete Practice Part 3

    发布日期: 2004-03 来源: 新信bet9登陆地址
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    有效 ACI SP-220-2004 Manual of Concrete Practice Part 3
    适用范围:There is no abstract currently available for this document
  • 有效 ACI 222R-2019 10TH

    发布日期: 2019-04 语言: 英文 来源: 新信bet9登陆地址
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    有效 ACI 222R-2019 10TH
    语言:英文
    适用范围:This guide discusses the factors that influence corrosion of reinforcing steel in concrete, measures for protecting embedded reinforcing steel in new construction, techniques for detecting corrosion in in-service structures, and remedial procedures. Consideration of these factors and application of the discussed measures, techniques, and procedures should assist in reducing the occurrence of corrosion and result, in most instances, in the satisfactory performance of reinforced and prestressed concrete structural members.
  • 有效 ACI SP-183-1999 MANUAL OF CONCRETE PRACTICE CD

    发布日期: 1999-01 来源: 新信bet9登陆地址
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    有效 ACI SP-183-1999 MANUAL OF CONCRETE PRACTICE CD
    适用范围:At ACI’s 1996 fall convention in New Orleans, La., ACI-ASCE Joint Committee 421, Design of Reinforced Slabs, sponsored two technical sessions. The focus of the morning session was “Design of Two-way Slabs using Elastic Frame Analogies,” and the afternoon session concentrated on “Design of Two- Way Slabs using Theorems of Plasticity.” The sessions were moderated by Hershell Gill and Thomas C. Schaeffer. This ACI Special Publication consists of 10 papers, all of which were presented at the sessions in New Orleans. The current ACI 318 Building Code specifically addresses two methods for the design of two-way slabs. These methods are the Equivalent Frame Method, and the Direct Design Method. However, the Building Code also “...permits a designer to base a design directly on fundamental principles of structural mechanics provided it can be demonstrated explicitly that all safety and serviceability criteria are satisfied.” The papers contained in this volume should give the designer an overview of some of the different analysis and design techniques that are currently being used.
  • 有效 ACI SP-194-2000 The Contractor’s Guide to Quality Concrete Construction

    发布日期: 2000-01 语言: 英文 来源: 新信bet9登陆地址
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    语言:英文
    适用范围:This Symposium Publication contains 12 papers presented at theAdam Neville Symposium in Atlanta, Georgia, in 1997. Topicsrelating to creep and shrinkage include admixture and cementitiousmaterials effects, special high-performance considerations,temperature and humidity influences, reinforced and prestressedconcrete analysis and design procedures, and much more.
  • 有效 ACI 122R-2014(R2015) Sustainable Development of Cement and Concrete

    发布日期: 2015-04-22 语言: 英文 来源: 新信bet9登陆地址
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    语言:英文
    适用范围:Introduction To reduce the use of nonrecoverable energy sources, authoritieshave adopted energy-conservation building codes and standards thatapply to the design and construction of buildings. The design ofenergy-conserving buildings requires an expanded understanding ofthe thermal properties of the building envelope and the materialsthat comprise the envelope system. This guide provides thermal-property data and design techniquesthat are useful in designing concrete and masonry buildingenvelopes and determining energy code compliance. The guide isintended for use by owners, architects, engineers, buildinginspectors, code-enforcement officials, and all those interested inthe energy-efficient design of buildings containing concrete ormasonry components.
  • 有效 ACI 241R-2017 Repairs for Reinforcement with Shallow Cover

    发布日期: 2017-01 语言: 英文 来源: 新信bet9登陆地址
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    语言:英文
    适用范围:This report provides information for those involved in concrete design and construction so they are familiar with the factors involved in the effective use of nanomaterials and nanotechnology. This document is not intended as a primary reference source for researchers. Rather, it is aimed at engineers and architects who wish to gain further understanding of the effects of nanomaterials and nanoadditives being used or proposed for application in concrete. Application of available technology is demonstrated for a range of nanoconcrete structures to show that technological risks are at a known and acceptable level and high industry standards maintained. An overview reports on the main developments in the fields of nanotechnology and nanoscience that are related to concrete, along with their implications and key findings. Factors affecting performance of fresh and hardened concrete are discussed to enable those involved in the evaluation and formulation of concrete mixtures to determine the effects of these factors. The potential of nanotechnology to improve concrete performance can lead to the development of novel, sustainable, advanced cement-based composites with unique mechanical, thermal, and electrical properties. New developments have already taken place in nanoengineering and nanomodification of concrete. Current challenges, including proper dispersion, compatibility of the nanomaterials in cement, processing, manufacturing, safety, handling issues, and cost all need to be solved before the complete potential of nanotechnology can be realized in concrete applications. Additionally, introduction of these novel materials into the construction practice requires an evaluation and understanding of their potential impact on the environment and human health
  • 被代替 ACI 301R-1999 PROPERTIES AND USES OF POLYMERS IN CONCRETE

    发布日期: 1999-01 来源: 新信bet9登陆地址
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    适用范围:There is no abstract currently available for this document
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    适用范围:Introduction Nonprestressed reinforced concrete liquid containmentstructures—in particular, noncircular tanks—often exhibit verticaland diagonal cracks that are aesthetically objectionable. Moreimportantly, cracks could result in loss of stored liquids, leakageof hazardous materials, concrete deterioration, and corrosion ofreinforcing bars. Such cracks, however, are seldom indicative ofstructural failure. This TechNote reviews themethodology of repair in liquid containment structures.
  • 有效 ACI 369R-2011 Report on Measuring Mechanical Properties of Hardened Fiber-Reinforced Concrete

    发布日期: 2011-02 语言: 英文 来源: 新信bet9登陆地址
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    适用范围:This guide describes methods for estimating the seismicperformance of concrete components in an existing building. Theguide is intended to be used with the analysis procedures andRehabilitation Objectives (ROs) established in ASCE/SEI 41-06 forthe Systematic Rehabilitation Method. The methods described applyto existing concrete components of a building system, rehabilitatedconcrete components of a building system, and new concretecomponents added to an existing building system. Provisions of thisguide do not apply to concrete-encased steel compositecomponents. Chapter 2 recommends data collection procedures for obtainingmaterial properties and performing condition assessments. Chapter 3provides general analysis and design requirements for concretecomponents. Chapter 4 provides modeling procedures, componentstrengths, acceptance criteria, and rehabilitation measures forcast-in-place concrete moment frames.
  • 有效 ACI 374.3R-2016 Reinforced Concrete Design for Thermal Effects on Nuclear Power Plant Structures

    发布日期: 2016-09 语言: 英文 来源: 新信bet9登陆地址
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    适用范围:This guide provides information about nonlinear modeling parameters for: (a) Special moment frames extracted from ASCE/SEI 41, for which definitions and requirements are converted to those of the codes for the design of new concrete buildings (b) Special structural walls and coupling beams extracted from ASCE/SEI 41, for which definitions and requirements are converted to those of the codes for the design of new concrete buildings (c) Special moment frames and structural walls developed from the latest experimental databases of structural components compliant with the requirements of Chapter 18 (ACI 318-14) for earthquake-resistant structures. In regards to (c), the mean and mean minus one standard deviation modeling parameter values are provided for these code-compliant specimen databases in an effort to demonstrate a quantitative representation of data distribution for the LDP. The LDP can select modeling parameters based on ASCE/SEI 41, or the experimental database, depending on project constraints, jurisdiction requirements, or both. The modeling parameters in this guide are meant to be used for the analytical modeling of structural components in earthquake-resistant systems as described. The guide, however, does not describe global behavior or provide interaction between different systems in the buildings, for example, diaphragms and moment frames.
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