ACI 562M-13: Code Requirements for Evaluation, Repair, and by ACI

By ACI

This code presents ideas for a initial overview that determines the "design foundation code" that's, if the development may be repaired in response to the ACI 318 model utilized in the unique layout, or if the fix must conform to the present ACI 318. The code offers principles for deciding on power of in-situ fabric, appearing structural research, designing maintenance for power and sturdiness, standards for balance and shoring of development, and inspection and trying out of upkeep. statement offers software tips in addition to references for more information.

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Additional resources for ACI 562M-13: Code Requirements for Evaluation, Repair, and Rehabilitation of Concrete Buildings and Commentary (Metric)

Sample text

The effect of a severed bonded tendon is typically localized because the severed tendon will be effective after a development length is achieved and the full strength of the tendon will be reestablished. For structures with bonded tendons, shoring, if necessary, may only be required locally at the repair area. Review of grouting quality assurance and supervision documents may be required to ensure adequately grouted tendons after the application of prestress. The presences of voids, moisture in ducts, and the presence of chlorides or carbonation need to be identified in the existing grout.

3C Procedures for seismic rehabilitation of concrete buildings, including analysis, are provided in ASCE/SEI 41 and supplemented in ACI 369R. These references provide details for forces, rehabilitation methods, analysis and modeling procedures, and seismic rehabilitation design. 1C The licensed design professional may lack information required to determine the strength of deteriorated or repaired structural members. Field assessments, including destructive and in-place testing, can provide some of the information required, but the costs for these assessments can be significant; however, the results of strength evaluation may still be inconclusive due to unknown effects of existing conditions or interaction with the repair.

FRP shapes may be used as additional standalone structural members. 2R. Particular attention should be given to strength increase CODE REQUIREMENTS FOR EVALUATION, REPAIR, AND REHABILITATION OF CONCRETE BUILDINGS (ACI 562M-13) CODE 41 COMMENTARY limits, service limits, and determination of FRP material design properties. 1R. Particular attention should be given to service limits and determination of FRP material design properties. 4R. 5. 2C Unless protection is provided, to prevent sudden failure of the member in case the FRP system is damaged or becomes ineffective (such as in an extraordinary event like fire), the structural member should have adequate strength without the FRP reinforcement to support factored loads, as defined for extraordinary events in Chapter 5.

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