|
|
Monitoring the condition of the archaeological sites of Prague Castle
Válek, Jan ; Kozlovcev, Petr ; Kotková, Kristýna ; Fialová, Anna ; Svorová Pawełkowicz, Sylwia ; Frankl, Jiří
In order to study microclimatic conditions, monitoring of selected archaeological terrains of Prague Castle was carried out in the period from August 2020 to May 2023. The internal climate of the area under the third courtyard of Prague Castle, also called Great Excavations, was monitored in the given time range. During the monitoring campaign, sensors were also placed in the area of the Small Excavations and the archaeological terrain of St. George's Monastery at various times. In particular, relative humidity, air and materials temperatures, moisture content of building materials, etc. were monitored. Samples of building materials were also taken and analysed, and the presence of biological degradation agents was monitored. The research focused in detail on describing the temperature and relative humidity of the indoor environment in relation to the moisture content of the materials and their potential degradation agents. These are primarily represented here by water-soluble salts. Their hazardousness in terms of damage to historic materials is influenced by variations in relative humidity and evaporation of water from capillary pores in combination with temperature. Research has shown that the most significant problem for sites is flooding or water seepage through the ground, surrounding structures or ceiling.
|
|
|
Report on the structural survey of Judith's Tower in Prague 1. Part II
Drdácký, Miloš ; Kloiber, Michal ; Frankl, Jiří ; Zíma, Pavel ; Wolf, Benjamin
For the intended restoration of the object, a survey of structures that show faults or for which knowledge of material characteristics is needed for calculations confirming the reliability of the structures was requested. During the implementation of the order, there were difficulties that affected the necessity of its execution in two stages. The user of the tower cooperated with the authors of this report without any problems, and therefore it was possible to carry out the work listed below in the necessary scope and quality.
|
|
|
Innovative device for the simulation of environmental conditions and testing of building materials
Cacciotti, Riccardo ; Wolf, Benjamin ; Macháček, Michael ; Frankl, Jiří
Excessive humidity influences the performance of building envelopes and the safety of their occupants. Moisture related problems can indeed impose significant health risks for buildings’ users and even lead, under extreme scenarios, to structural failures. This paper investigates an innovative experimental setup for evaluating the influence of changing environmental conditions on the performance of building materials. It stems out from a broader ongoing research aimed at studying the trends of mould growth on wooden building components. The presented results include the design, construction and numerical validation of a small-scale climatic wind tunnel (2m x 1.8m ca.) to be used for the simulation of natural ventilation and daily humidity and temperature fluctuations. Key findings include the final design of a low cost, modular construction which allows gathering reliable data on the response of building materials exposed to changing boundary conditions, intended for improving current mould growth models. Future work is also suggested.
|
|
| |
|
| |
|
| |
|
|
Methodology for monitoring and evaluation of light parameters and biological indicators of internal environment depositories and expositions
Juliš, Karel ; Valach, Jaroslav ; Frankl, Jiří ; Štefcová, Petra ; Pech, Michal ; Kotyk, Michael
The methodology provides guidance procedures for monitoring and evaluation of automatically collected lighting parameters and biological indicators of internal environment depositories and expositions. There is specified a methodology, together with description of particular hardware components and software central point, which collects and evaluates the information acquired. The system, as a whole, is designed as a modular and open platform, which allows a wide variety of user modifications and customisation to almost any specific museum collection, repository or exhibition.
Fulltext:  PDF
|
|
|
Methodology for monitoring and evaluation of light parameters and biological indicators of internal environment depositories and expositions
Juliš, Karel ; Valach, Jaroslav ; Frankl, Jiří ; Štefcová, P. ; Pech, M. ; Kotyk, M.
The project focuses on automation of collection and evaluation of given physical and biological parameters of the museum expositions and repositories. There is specified a methodology, together with description of particular hardware components and software central point, which collects and evaluates the information acquired. The system, as a whole, is designed as a modular and open platform, which allows a wide variety of user modifications and customisation to almost any specific museum collection, repository or exhibition.
Fulltext: content.csg - PDF
Plný tet: 0457076_2015_Julis_et_al_Metodika_CM_NAKI-027 - PDF
|
|
|
Methodology and tolls of protection and preservation of cultural heritage at risk from flooding
Nedvědová, Klára ; Frankl, Jiří ; Fošumpaur, P.
The consortium project "Methodology and tools of protection and preservation of cultural heritage at risk from flooding" was undertaken in the years 2011 to 2015 within the "Applied research and development of national and cultural identity (NAKI)" program supported by the Ministry of Culture of the Czech Republic. The project was aimed at increasing the protection of cultural heritage sites in estimating the risk of damage, planning and designing of flood control measures as well as implementing post-flood and remediation measures. The paper presents some of the achievements of the project - the "Vulnerability assessment and prevention of flood damage to cultural heritage" methodology, the methodology of protection of cultural heritage and areas of cultural-historical value against floods, software application "Itemized catalog of flood hazard posed to heritage sites" and methodology for the creation of contingency plans in case of natural disasters.
|
|
|
Desing and production of specialized lime binders for restoration of monuments using historical technologies
Válek, Jan ; Matas, Tomáš ; Jiroušek, Josef ; van Halem, Eveline ; Hauková, Petra ; Frankeová, Dita ; Frankl, Jiří ; Tomanová, Olga ; Panáček, Michal
The methodological guideline supports the use of traditional lime materials for repair of historical buildings. It describes the main steps to be carried out when it is required to use a traditional lime mortar. The guideline provides an overview of the circumstances for using traditional technologies which are applied in the design and selection of lime binder and its treatment. It specifies essential procedures and principles that determine traditional production and processing of lime and recommends specific procedures for the lime processing and mortar production. The guideline is intended for architects, building engineers, cultural heritage conservators, conservation scientists, technologists, restorers and practitioners.
Fulltext: content.csg - PDF
Plný tet: 0453847_2015_Valek_et_al_Navrh_a_vyroba_specializovanych_vapennych_pojiv_pro_obnovu_pamatek_s_vyuzitim_historickych_technologii_CM_010 - PDF
|
guest ::
