Reliability assessment of heritage architecture

Holický, Milan; Sýkora, Miroslav

doi:10.2495/str130081

Cited by 3 publications

(3 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It has been recognized that such structures often fail to fulfil requirements of present codes of practice [2,3]. Decisions about adequate construction interventions should be based on the complex assessment of a structure considering actual material properties, environmental influences and satisfactory past performance [4]. A key step of this assessment is modelling of resistance of load-bearing members [5].…”

Section: Introductionmentioning

confidence: 99%

Material properties of heritage wrought steel structure based on tests

Jung¹,

Marková²,

Pokorný³

et al. 2017

Int. J. HA

View full text Add to dashboard Cite

Many heritage structures do not fulfil requirements of present standards. Decisions about adequate construction interventions should be based on complex assessment of structural reliability. Such an assessment should take into account new utility plans, actual material properties and environmental influences, including degradation processes, satisfactory past performance and advanced modelling reflecting properties of historic materials that are often distinctly different from those assumed for current construction materials.The submitted contribution focuses on reliability assessment of balcony girders of the Estates Theatre in Prague, listed as a Czech national heritage monument. Preliminary reliability assessment, based on conservative recommendations of standards for existing structures, reveals that the resistance of the wrought steel girders from the 19th century is insufficient. This is why a series of non-destructive tests supplemented by a single tensile test are performed in order to obtain information about the homogeneity of the historic material, its strength and modulus of elasticity. The results of the tests are then evaluated using statistical methods. The design values of basic variables are estimated, considering uncertainties in material properties, geometry and resistance models. In addition, chemical analysis is performed to identify material composition and verify a type of historic steel.

show abstract

Section: Introductionmentioning

confidence: 99%

Material properties of heritage wrought steel structure based on tests

Jung¹,

Marková²,

Pokorný³

et al. 2017

Int. J. HA

View full text Add to dashboard Cite

show abstract

“…It has been recognised that such structures often fail to fulfil requirements of present codes of practice [2,3]. Decisions about adequate construction interventions should be based on the complex assessment of a structure considering actual material properties, environmental influences and satisfactory past performance [4]. A key step of this assessment is modelling of resistance of load-bearing members [5].…”

Section: Introductionmentioning

confidence: 99%

Estimating Design Resistance of Wrought Balcony Girders

Jung¹,

Marková²,

Sýkora³

2017

Transactions of the VŠB – Technical University of Ostrava, Civil Engineering Series.

View full text Add to dashboard Cite

The contribution is focused on reliability of balcony girders of a Czech national heritage monument. As preliminary reliability assessment suggests insufficient resistance, a series of nondestructive tests supplemented by a single tensile test are performed and evaluated by the statistical methods. Values of material properties, recommended in standards for historic materials, seem to be overly conservative and it is advised to specify properties of historic metallic materials by tests.

show abstract

“…It has been recognised that existing structures including cast-iron structures do not fulfil requirements of present codes of practice. Decisions about adequate construction interventions should be based on the complex assessment of a structure considering actual material properties, environmental influences and satisfactory past performance [3]. A key step of this assessment is modelling of resistance of load-bearing members made of cast iron [4].…”

mentioning

confidence: 99%

Uncertainty in resistance models for historic cast-iron columns

Brych¹,

Holický²,

Jung³

et al. 2015

WIT Transactions on Ecology and the Environment

Self Cite

View full text Add to dashboard Cite

Numerous processing and manufacturing mills, workshops, warehouses, bridges and other industrial buildings belong to industrial heritage. Their origin dates back to the 19th and 20th century when cast iron became a widely used construction material. It has been recognised that existing structures including cast-iron structures do not fulfil requirements of present codes of practice. A key step of reliability assessment is modelling of resistance of load-bearing members made of cast iron. The present paper investigates several empirical or physical models for resistance of historic cast-iron columns. Outcomes of the models are critically compared with experimental results obtained for solid and hollow cylindrical, and square columns from English grey cast iron. Imprecision of the models is expressed by means of model uncertainty for which appropriate probabilistic models are proposed. As tensile strength of cast iron is considerably lower than compressive strength, it dominates resistances of columns centrically loaded in compression with slenderness ratio over 60. In such cases model uncertainty can be described by a two-parameter lognormal distribution with the mean of 1.25 and coefficient of variation of 0.15. For columns with lower slenderness ratios compressive strength is decisive and the mean of model uncertainty decreases to 1.2.

show abstract

Reliability assessment of heritage architecture

Cited by 3 publications

References 5 publications

Material properties of heritage wrought steel structure based on tests

Material properties of heritage wrought steel structure based on tests

Estimating Design Resistance of Wrought Balcony Girders

Uncertainty in resistance models for historic cast-iron columns

Contact Info

Product

Resources

About