Theoretical study on and safeguarding of cultural landscape heritage has been put on the agenda of heritage protection in Zhejiang and Fujian provinces.The safeguarding of timber-framed arch bridge heritage in the pas...Theoretical study on and safeguarding of cultural landscape heritage has been put on the agenda of heritage protection in Zhejiang and Fujian provinces.The safeguarding of timber-framed arch bridge heritage in the past 5 decades could be classified into 3 stages,and heritage protection in all 3 stages was closely related to original meaning of "landscape",which proved that timber-framed arch bridge heritage had profound inside information,and the safeguarding of timber-framed arch bridge from the perspective of cultural landscape heritage was worth further study.Safeguarding of timber-framed arch bridge cultural landscape heritage focused on integrated conservation,but not protection of individual bridges.Integrated conservation of world heritage is to maintain and restore the integrated environment landscape of the heritage,thus protection of timber-framed arch bridge heritage is not only to explore its architectural craftsmanship,but also to lay a foundation for the dynamic succession of such craftsmanship as intangible cultural heritage.Value of the existing timber-framed arch bridges as historic building heritage was discussed,and it was proposed that ultimate objectives of the safeguarding could be realized step by step from 3 layers.展开更多
This paperprovides a historical overview intending to clarify the methods of interpretation of timber-framed buildings by different authors of construction treatises, and structural intentions of the carpentry designe...This paperprovides a historical overview intending to clarify the methods of interpretation of timber-framed buildings by different authors of construction treatises, and structural intentions of the carpentry designers and master builders, throughout the centuries, until the period when it became scientific structural theory. It describes the ＂box-frame＂ construction that appeared in Lisbon, after the earthquake of 1755, characterized by its good seismic resistance. This knowledge is important to determine a strategy of an efficient restoration practice in historical constructions which require an intervention subordinated to its raised patrimonial and artistic value, minimum, which respects the authenticity of its structural and construction conception and which is reversible and compatible, in physical, chemical, mechanic and aesthetic terms. Empirical understanding of the most important properties of wood to structure purposes, the defects of structural timbers, the framing and the preliminary survey followed by the structural survey were some of the difficulties which can be overcame in practice.展开更多
This paper presents an analytical framework for evaluating the impact of the two main processes identified in Madrid timber-framed courtyard buildings reinforcing the courtyard's crucial role in architectural heri...This paper presents an analytical framework for evaluating the impact of the two main processes identified in Madrid timber-framed courtyard buildings reinforcing the courtyard's crucial role in architectural heritage sustainability:their development caused dwellings to darken(1737–1950),and the existing challenge is to open new patios according to the listed buildings'protection policy.Critical findings in archival research and existing building assessments led to completed data collection and analysis.When exploring construction expansion,from the house towards the collective prototype around a gradually reduced patio and dwelling darkening(1737–1786),buildings resulted in open,semiopen,underlighted and closed designs.Study area on-site assessment uncovered the transition from the older low-rise type(1–3)floors to the modern closed model of up to(4–6)storeys.Construction enlargements,consequently reducing original green areas and courtyards,call for reversing that process or formulating a new strategy.It debates the partial demolition of listed buildings in upgrades and its agreement with the needed“blue courtyard”strategy(PGOUM),resulting from joining new rear individual patios to create a communal building block courtyard.The uncovered“in-between”type(1864),which integrates two open-air collective spaces,an inner courtyard and a back garden,appears challenging to explore.展开更多
The constructive analysis of Madrid’s old timber-framed collective courtyard buildings,whether demolished,preserved intact,or enlarged,has achieved the dating of relevant case studies.New parameters established in th...The constructive analysis of Madrid’s old timber-framed collective courtyard buildings,whether demolished,preserved intact,or enlarged,has achieved the dating of relevant case studies.New parameters established in this study set a chronology based on front sector original projects:old(1737e1788),pre-modern(1788e1847)and modern(1847e1892).The onsite inspection and archival research point to ongoing misleading construction in the historic Southern area.Some modern corralas erected on top of pre-existing buildings confirm the initial hypothesis.First dimensioning rules for new fac¸ades and the stability required in old ones before adding new storeys,maintaining the original masonry or double-layered system,are discovered.Undated buildings suggest their possible origin a la malicia and a later transformation into transitional corralas.Finally,an analysis of the demolished courtyards narrows down the dating and points to new conjectures in some preserved by showing their uneven layout,old features,and structural discordances in each sector.展开更多
文摘Theoretical study on and safeguarding of cultural landscape heritage has been put on the agenda of heritage protection in Zhejiang and Fujian provinces.The safeguarding of timber-framed arch bridge heritage in the past 5 decades could be classified into 3 stages,and heritage protection in all 3 stages was closely related to original meaning of "landscape",which proved that timber-framed arch bridge heritage had profound inside information,and the safeguarding of timber-framed arch bridge from the perspective of cultural landscape heritage was worth further study.Safeguarding of timber-framed arch bridge cultural landscape heritage focused on integrated conservation,but not protection of individual bridges.Integrated conservation of world heritage is to maintain and restore the integrated environment landscape of the heritage,thus protection of timber-framed arch bridge heritage is not only to explore its architectural craftsmanship,but also to lay a foundation for the dynamic succession of such craftsmanship as intangible cultural heritage.Value of the existing timber-framed arch bridges as historic building heritage was discussed,and it was proposed that ultimate objectives of the safeguarding could be realized step by step from 3 layers.
文摘This paperprovides a historical overview intending to clarify the methods of interpretation of timber-framed buildings by different authors of construction treatises, and structural intentions of the carpentry designers and master builders, throughout the centuries, until the period when it became scientific structural theory. It describes the ＂box-frame＂ construction that appeared in Lisbon, after the earthquake of 1755, characterized by its good seismic resistance. This knowledge is important to determine a strategy of an efficient restoration practice in historical constructions which require an intervention subordinated to its raised patrimonial and artistic value, minimum, which respects the authenticity of its structural and construction conception and which is reversible and compatible, in physical, chemical, mechanic and aesthetic terms. Empirical understanding of the most important properties of wood to structure purposes, the defects of structural timbers, the framing and the preliminary survey followed by the structural survey were some of the difficulties which can be overcame in practice.
基金The Government of Spain,Ministry of Science and Innovation,supported this work under a Grant(PID2020-118796RBI00)the University of Alcala under a Grant(PIUAH22-IA-026)a Research Stay at the University of Portsmouth,United Kingdom(2018-BDNS:369002 and 2019-BDNS-429650).
文摘This paper presents an analytical framework for evaluating the impact of the two main processes identified in Madrid timber-framed courtyard buildings reinforcing the courtyard's crucial role in architectural heritage sustainability:their development caused dwellings to darken(1737–1950),and the existing challenge is to open new patios according to the listed buildings'protection policy.Critical findings in archival research and existing building assessments led to completed data collection and analysis.When exploring construction expansion,from the house towards the collective prototype around a gradually reduced patio and dwelling darkening(1737–1786),buildings resulted in open,semiopen,underlighted and closed designs.Study area on-site assessment uncovered the transition from the older low-rise type(1–3)floors to the modern closed model of up to(4–6)storeys.Construction enlargements,consequently reducing original green areas and courtyards,call for reversing that process or formulating a new strategy.It debates the partial demolition of listed buildings in upgrades and its agreement with the needed“blue courtyard”strategy(PGOUM),resulting from joining new rear individual patios to create a communal building block courtyard.The uncovered“in-between”type(1864),which integrates two open-air collective spaces,an inner courtyard and a back garden,appears challenging to explore.
基金supported by the University of Alcala´(Madrid)under Grant(CCG/AH-038/2020)with the collaboration of the City Council(EMVS)and the Historical Archives of Madrid(AVM).
文摘The constructive analysis of Madrid’s old timber-framed collective courtyard buildings,whether demolished,preserved intact,or enlarged,has achieved the dating of relevant case studies.New parameters established in this study set a chronology based on front sector original projects:old(1737e1788),pre-modern(1788e1847)and modern(1847e1892).The onsite inspection and archival research point to ongoing misleading construction in the historic Southern area.Some modern corralas erected on top of pre-existing buildings confirm the initial hypothesis.First dimensioning rules for new fac¸ades and the stability required in old ones before adding new storeys,maintaining the original masonry or double-layered system,are discovered.Undated buildings suggest their possible origin a la malicia and a later transformation into transitional corralas.Finally,an analysis of the demolished courtyards narrows down the dating and points to new conjectures in some preserved by showing their uneven layout,old features,and structural discordances in each sector.
文摘为研究穿斗式木结构的抗震性能及其加固方法,选取杉木和松木两种木材,设计并制作四榀穿斗式木结构平面外框架,采用黏弹性阻尼器加固试件,对加固和未加固的木框架分别进行低周往复荷载试验,研究结构的抗震性能及阻尼器的加固效果.研究结果表明:加固后木排架滞回曲线的滑移和捏缩现象大幅减轻,滞回环面积增大,等效黏滞阻尼比增加,耗能能力增强,杉木和松木排架耗能能力分别提高83.31%和286.34%;加固后试件的骨架曲线斜率和极限承载力均得到大幅提升,斜率大致随加载幅值增大而增大,极限承载力杉木排架最大提升218.32%,松木排架最大提升458.89%;加固后木结构框架的刚度储备增高,初始刚度杉木试件提升46.9%,松木试件提升264.1%;杉木试件在安装阻尼器后节点的残余拔榫量减少15.06 mm,松木试件减少31.96 mm.
