- Discussion on seismic performance indexes of architectural curtain walls
- L. Wensheng ; H. Baofeng
- 14th World Conference on Earthquake Engineering, Beijing, China, Paper 14-05-01-0312.
- Book Title / Journal:
- Year: 2008 , Volume: , Series:
- Earthquake engineering
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- Seismic safety of the building envelope. Whole building design guide
- C. Arnold
- Article sponsored by the Building Enclosure Council
- Book Title / Journal:
- Year: 2008 , Volume: , Series:
- Earthquake engineering
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- Seismic response of large-span cable-stayed bridge under multi-component multi-support earthquake excitation
- W. Quan ; H.N. Li ; X. Liu
- 14th World Conference on Earthquake Engineering, Beijing, China
- Book Title / Journal:
- Year: 2008 , Volume: , Series:
- Earthquake engineering
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- Seismic design of two new york bridges
- B. Liu ; H. Chen ; P. Li
- 14th World Conference on Earthquake Engineering, Beijing, China
- Book Title / Journal:
- Year: 2008 , Volume: , Series:
- Earthquake engineering
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- Performance of bridges in liquefied ground during 1999 Chi-Chi Earthquake
- D.B. Chu ; Scott J. Brandenberg ; P.S. Lin
- 14th World Conference on Earthquake Engineering, Beijing, China
- Book Title / Journal:
- Year: 2008 , Volume: , Series:
- Earthquake engineering
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- Influence of soil flexibility on the behavior of existing bridges in regions of moderate seismicity
- M. Kuhn ; M. Bimschas ; A. Dazio
- 14th World Conference on Earthquake Engineering, Beijing, China
- Book Title / Journal:
- Year: 2008 , Volume: , Series:
- Earthquake engineering
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- Performance-based seismic evaluation of long-span bridges in China
- Q. Li ; Y.F. Li
- 14th World Conference on Earthquake Engineering, Beijing, China
- Book Title / Journal:
- Year: 2008 , Volume: , Series:
- Earthquake engineering
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- Is direct displacement based design valid for long span bridges?
- L. Petrini ; G.M. Calvi ; G. Adhikari
- 14th World Conference on Earthquake Engineering, Beijing, China
- Book Title / Journal:
- Year: 2008 , Volume: , Series:
- Earthquake engineering
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- Seismic Performance of Wooden Houses Damaged in the 2007 Noto Hanto Earthquake and Evaluation of Structural Regionality
- H. Shimizu ; H. Arai ; M. Yamada ; Y. Hayashi ; T. Morii
- The 14th World Conference on Earthquake Engineering, Beijing, China, paper S12-026
- Book Title / Journal:
- Year: 2008 , Volume: , Series:
- Earthquake engineering
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- Effects of local site amplification on damage to wooden houses in near-source region for the 2007 Noto Hanto Earthquake
- H. Shimizu ; H. Arai ; M. Yamada ; Y. Hayashi ; T. Morii
- Proceedings of the Fifth International Conference on Urban Earthquake Engineering, pages 294-300.
- Book Title / Journal:
- Year: 2008 , Volume: , Series:
- Earthquake engineering
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- Out of plane strength of infill panels
- M. Ghazimahalleh
- The 14th World Conference on Earthquake Engineering, Beijing, China, paper No. 05-04-0066
- Book Title / Journal:
- Year: 2008 , Volume: , Series:
- Earthquake engineering
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- Long term compressive testing of masonry – test procedure and practical experience.
- L. Binda ; L Schueremans ; E. Verstrynge ; S. Ignoul ; D.V. Oliveira ; P.B. Lourenço ; C. Modena
- Book Title / Journal: In D. D’Ayala & E. Fodde (eds.), Structural Analysis of Historic Construction, Taylor & Francis Group, London,
- Year: 2008 , Volume: , Series:
- Structure types ; Masonry Structures
- Description
- The sudden collapses in Italy (Civic Tower of Pavia 1989, Noto Cathedral, 1996) initiated the research into long term behaviour of historical masonry structures. Last decade, international ad hoc collaboration was established within several research inatitutes in Europe. The testing on masonry samples identified the creep behaviour as a possible cause of the collapse of historical masonry buildings. Secondly, research focused on the study of the factors affecting creep (rate of loading, stress level,..) and efforts were made to set up the most suitable testing procedures to understand the phenomenon. The gained insight in the long term behaviour and its description by means of rheological models, is validated mainly by means of long term testing, identifying significant parameters (strain rate of secondary creep phase, damage parameters…).
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- Blended lime-cement mortars for conservation purposes: Microstructure and strength development
- O. Cizer ; K. Van Balen ; D. Van Gemert ; J. Elsen
- Book Title / Journal: In D. D’Ayala & E. Fodde (eds.), Structural Analysis of Historic Construction, Taylor & Francis Group, London,
- Year: 2008 , Volume: , Series:
- Structure types ; Masonry Structures
- Description
- Blended lime-cement mortars are commonly used in conservation practices even though they
may show lack of adequate strength and durability for certain cement-lime compositions. This paper focuses
on understanding the hardening reactions and their influence on the strength development, microstructure and
porosity for the cement-lime mortars in various compositions. Mortars composed of 30%, 50% and 70% cement replacement with lime hydrate and lime putty by mass were studied. Cement hydration has been found to contribute to the early stage strength development while carbonation is mostly favoured after 3 days and contributes
to the strength development until 180 days. The degree of carbonation is much more pronounced with increasing
lime content and porosity of the mortars and the reaction is still in progress at 90 days. All the blended mortars
revealed lower compressive and flexural strength than that of the reference cement mortar due to their lower
cement content and higher porosity. Long-term compressive strength development has been achieved after 180
days while flexural strength for certain mortar compositions does not increase beyond 28 days. Unlike cement
mortar, the mortars blended with lime hydrate and lime putty exhibit an elastic-plastic deformation before failure
occurs, which is preferred for repair mortars to adapt to differential settlements and to allow more deformation
under critical stresses in the masonry.
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- Vulnerability assessment of churches at Colima by 3D limit analysis models
- A. Orduña ; A Preciado ; F. Galván ; J.C. Araiza
- Book Title / Journal: In D. D’Ayala & E. Fodde (eds.), Structural Analysis of Historic Construction, Taylor & Francis Group, London,
- Year: 2008 , Volume: , Series:
- Earthquake engineering
- Description
- This work presents the vulnerability assessment of two churches at the state of Colima by means
of 3D rigid block models, using a limit analysis approach. The paper contains a description of the buildings and
the damage they suffered during the 2003 earthquake. The 3D models were elaborated on the basis of macroblocks defined according to the damage observed after the earthquake and also, taking into account the typical
failure mechanisms in churches reported in the literature. The limit analyses were carried out with a software
already tested and validated elsewhere. The results show that the limit analysis approach with rigid block models
is a valuable tool for the identification of critical failure mechanisms, their associated failure multipliers and, in
a global fashion, for the vulnerability assessment of historical churches. The results also indicate that empirical
methods provide a good estimation of the vulnerability level of this buildings type.
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- A distributed shear and flexural flexibility model with shear-flexure interaction for R/C members subjected to seismic loading
- P.E. Mergos ; A.J. Kappos
- Book Title / Journal: Earthquake Engineering and Structural Dynamics,
- Year: 2008 , Volume: 37 , Series:
- Earthquake engineering
- Description
- Α beam-column type finite element for seismic assessment of R/C frame structures is presented. This finite element consists of two interacting, distributed flexibility subelements representing inelastic flexural and shear response. Following this
formulation, the proposed model is able to capture spread of flexural yielding, as well
as spread of shear cracking, in R/C members. The model accounts for shear strength
degradation with inelastic curvature demand, as well as coupling between inelastic
flexural and shear deformations after flexural yielding, observed in many
experimental studies. An empirical relationship is proposed for evaluating average
shear distortion of R/C columns at onset of stirrup yielding. The proposed numerical
model is validated against experimental results involving R/C columns subjected to
cyclic loading. It is shown that the model can predict well the hysteretic response of
R/C columns with different failure modes, i.e. flexure-critical elements, elements
failing in shear after flexural yielding, and shear-critical R/C members.
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