ACI ITG-5.1
Acceptance Criteria for Special Unbonded Post-Tensioned Precast Structural Walls Based on Validation Testing and Commentary
سال
: 2007-01-01
چکیده: This document defines minimum acceptance criteria for unbonded
post-tensioned precast structural walls, including coupled unbonded
post-tensioned precast structural walls, designed for regions of
high seismic risk or for structures assigned to high seismic
performance or design categories, where acceptance is based on
experimental evidence and analysis.
This document is applicable to unbonded post-tensioned precast
structural walls, coupled or uncoupled, with height-to-length
ratios, hw/lw, equal to or greater than 0.5.
This document is applicable to either prequalifying unbonded
post-tensioned precast structural walls for a specific structure or
prequalifying an unbonded posttensioned precast wall type for
construction in general. This document applies to walls that are
effectively continuous from the base of the structure to top of
wall and are designed to have a single critical section for flexure
and axial loads.
The walls of the prototype structure shall be permitted to be
several panels long and several panels high, to be constructed from
subpanels, and to be either coupled or uncoupled. Coupling elements
shall be permitted to be devices or beams connecting adjacent
vertical boundaries of the unbonded post-tensioned precast
walls.
Unbonded post-tensioned precast structural walls shall be deemed
to have a strength and toughness that is adequate to comply with
21.2.1.5 of ACI 318, and the corresponding unbonded post-tensioned
precast structural walls of the prototype structure shall be deemed
acceptable when all of the conditions in Sections 1.2.4.1 through
1.2.4.5 are satisfied.
The prototype structure satisfies all applicable requirements of
this document and of ACI 318 except 21.7.
Tests on wall modules satisfy the conditions in
Chapters 3 and
7.
The prototype structure is designed using the design procedure
substantiated by the testing program.
The prototype structure is:
(1) Analyzed using stiffness properties consistent with those
validated as prescribed in Section
5.10;
(2) Demonstrated through analysis to have design displacements
for all walls equal to or less than two thirds of the displacement
associated with the drift angles to which the appropriate modules
have been tested in accordance with Section
5.4; and
(3) Shown to have factored engineering design values for all
walls less than the nominal engineering design values used for the
test modules in accordance with Section
4.2.
The structure as a whole, based on the results of the tests of
Section 1.2.4.2 and analysis, is demonstrated to have the required
global toughness.
کالکشن
:
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آمار بازدید
ACI ITG-5.1
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date accessioned | 2020-05-27T08:34:55Z | |
date available | 2020-05-27T08:34:55Z | |
date issued | 2007-01-01 | |
identifier uri | http://libsearch.um.ac.ir:80/fum/handle/fum/3225716 | |
description abstract | This document defines minimum acceptance criteria for unbonded post-tensioned precast structural walls, including coupled unbonded post-tensioned precast structural walls, designed for regions of high seismic risk or for structures assigned to high seismic performance or design categories, where acceptance is based on experimental evidence and analysis. This document is applicable to unbonded post-tensioned precast structural walls, coupled or uncoupled, with height-to-length ratios, hw/lw, equal to or greater than 0.5. This document is applicable to either prequalifying unbonded post-tensioned precast structural walls for a specific structure or prequalifying an unbonded posttensioned precast wall type for construction in general. This document applies to walls that are effectively continuous from the base of the structure to top of wall and are designed to have a single critical section for flexure and axial loads. The walls of the prototype structure shall be permitted to be several panels long and several panels high, to be constructed from subpanels, and to be either coupled or uncoupled. Coupling elements shall be permitted to be devices or beams connecting adjacent vertical boundaries of the unbonded post-tensioned precast walls. Unbonded post-tensioned precast structural walls shall be deemed to have a strength and toughness that is adequate to comply with 21.2.1.5 of ACI 318, and the corresponding unbonded post-tensioned precast structural walls of the prototype structure shall be deemed acceptable when all of the conditions in Sections 1.2.4.1 through 1.2.4.5 are satisfied. The prototype structure satisfies all applicable requirements of this document and of ACI 318 except 21.7. Tests on wall modules satisfy the conditions in Chapters 3 and 7. The prototype structure is designed using the design procedure substantiated by the testing program. The prototype structure is: (1) Analyzed using stiffness properties consistent with those validated as prescribed in Section 5.10; (2) Demonstrated through analysis to have design displacements for all walls equal to or less than two thirds of the displacement associated with the drift angles to which the appropriate modules have been tested in accordance with Section 5.4; and (3) Shown to have factored engineering design values for all walls less than the nominal engineering design values used for the test modules in accordance with Section 4.2. The structure as a whole, based on the results of the tests of Section 1.2.4.2 and analysis, is demonstrated to have the required global toughness. | |
language | English | |
title | ACI ITG-5.1 | num |
title | Acceptance Criteria for Special Unbonded Post-Tensioned Precast Structural Walls Based on Validation Testing and Commentary | |
type | Standard | |
contenttype | Fulltext | |
pages | 23 | |
organisation abbrivate | ACI | |
standard organization | ACI - American Concrete Institute |