ISO/TR 4553:2022 PDF

Name: ISO/TR 4553:2022 — Deformations and displacements of buildings and building elements at serviceability limit states
SKU: ISO/TR 4553:2022
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Deformations and displacements of buildings and building elements at serviceability limit states

Название (английский):

ISO/TR 4553:2022

Deformations and displacements of buildings and building elements at serviceability limit states

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 13
Дата публикации:: 4 февраля 2022 г.
Издание:: ISO TR 4553 edition 1 version 1
ICS:: 91.080.01

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Описание (английский):

This document establishes the basic principles for the determination of deformations of buildings at the serviceability limit state when formulating national standards and recommendations. This document contains information on how serviceability for buildings and building elements is dealt with in some national standards.

Abstract

Похожие стандарты

Упомянутые в описании и другие стандарты ISO

Overview

ISO/TR 4553:2022 - "Deformations and displacements of buildings and building elements at serviceability limit states" is a Technical Report from ISO that provides guidance on assessing and limiting deformations and displacements that affect a building’s usability. The document establishes basic principles for determining deformations at the serviceability limit state and summarizes how serviceability is addressed in several national standards. It is intended to help structural designers and standards bodies formulate consistent national recommendations.

Key topics and technical requirements

Scope and purpose: Guidance for the determination of deformations and serviceability criteria for buildings and building elements; contains examples from national standards.

Limit state design context: Clarifies the role of the serviceability limit state alongside ultimate limit states in structural design.

Design procedure for serviceability: Recommends consideration of:

material properties and geometry relevant to serviceability,
structural importance and reliability classification,
serviceability actions (permanent, variable, accidental/seismic),
combinations of actions and corresponding design values,
serviceability response and limiting values.

Verification methods (design checks): Covers actions, design values of action effects, combinations (characteristic, frequent, quasi-permanent, seismic), and design values of geometric and material parameters.

Criteria for serviceability: Addresses vertical and horizontal deformations, vibration limits, and local damage (including cracking). The report distinguishes reversible vs irreversible serviceability effects.

Probability and reliability: Presents probabilistic framing for serviceability using probability of exceedance and reliability index (β), including typical target levels (examples in the report show β values ~1.3, 1.7, 2.3 with corresponding exceedance probabilities 0.10, 0.05, 0.01 for a one‑year reference period).

Practical assumptions and modelling: Discusses assumptions used to assess deformations (creep, temperature, moisture, ground movement, settlements) and sensitivity of those assumptions.

Applications and who should use it

Structural designers and engineers assessing deflection, drift and vibration performance of buildings.

National standards committees and code writers formulating serviceability rules and design procedures.

Building owners, consultants and reviewers seeking a consistent methodology for serviceability evaluation.

Useful in design of long-span elements, lightweight structures and sensitive installations where deformations, vibrations or cracking affect function or user comfort.

ISO/TR 4553:2022 PDF

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Applications and who should use it

Related standards (examples)

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