Building maintenance is gaining an increasing attention in the field of scientific
research and there was a need for the use of new technologies in maintenance
management, , as the facility management deal with a large amount of information relatin
g
to maintenance, which includes drawings and specifications, lists, and reports, and the use
of paper files leads to decrease the efficiency and create a shortage of data and information.
We offer in this research tool to manage the maintenance process by using the BIM
through linking deterioration models and three-dimensional model of the facility to be
maintained, then compensate the external investigation data for maintenance work in these
models, to get at the end of this research and with the help of the possibilities offered by
Revit database to an upcoming maintenance items and arrange them according to their
importance and impact on the facility , the estimated budget for the periodic maintenance
and distribution of this budget on the various construction elements , the development of
resources plan for next year and up to the knowledge database of maintenance will help in
determining the supplier lifecycle and the coefficient of replacement.
Building maintenance is gaining an increasing worldwide recognition in many
fields of study.as a result; a remarkable shift in building maintenance management from
preventive approach to predictive approach is taking a place now a days. That is ach
ievable
through building of an evaluative model to assess a variety of alternative decisions and
make the right decisions, taking in the consideration building condition and the available
budget for maintenance.
In Syria, there is lack of effective building maintenance for governmental buildings
because we use an approach depends on doing the work after the fault happened, that leads
to deteriorating in the all building's parts.
In this paper, we study maintenance reasons and importance degree for every single
components by designing questionnaire, divide the building in to its essential parts and
components, and link them to maintenance works.
At the end, we get mathematical models called deterioration models assist in
predictable maintenance works and distributing the budget, and to make sure about validity
of these models we apply them in the dormitory in Tishreen University.
The objective of this research to study the chemical composition and microbial load
for some types of pies by performing various chemical and microbial analysis of samples
collected, from different parts of the Syrian coast which are famous for its
production.
This study showed a large variation in the chemical composition of samples by type
of the pastry and place brought from, for example, the proportion of dry matter for peppers
and chard pies collected from Banias was, 75.71% and 44.90%, respectively, and the
percentage of dry matter was 73.88% and 76.18% and the proportion of protein was,
17.76% and 24 .88% for cheese pies collected from Tartous and Latakia 1, respectively.
This study indicated that all the pies contain a high percentage of fat [the lowest in chard
pies (17.64%) and the highest in cheese pies (38.12%)]. Furthermore a high percentage of
sodium was found (the highest in cheese pies 15.31 mg / 100 g and lowest in pepper pies
7.82 mg / 100 g).
The study also showed that these meals meet international standards in terms of
content of lead, cadmium, Nevertheless they are poor in fiber content except for chard pies
which were the most balanced in terms of components, making it the best type of pies in
nutritional aspect.
Finally, the results showed that the microbial load was too high, as the total census of
bacteria was higher than 105 and the total census of yeasts and fungi was higher than 102.
In addition, all pies are not conformed to the Syrian legislation. The study also showed
absence of E.coli and St. aureus of all samples.
Tunnels are usually considered as important and costly constructions and
therefore it is very necessary to estimate their performance and analyze
their structural behavior to maintain their safety in order to ensure their
reliability and performan
ce during their hypothetical life.
In this issue we reviewed the situation of Syrian railway tunnels on Aleppo –
Lattakia axis from the field observations which show that these tunnel
linings are cracked.
The numerical method, which is known as Distinct Element Method, was
used in the analysis of cracked lining. This method performs modeling of
discontinuous systems. We focused in this study on the concrete type
through elasticity modulus and lining thickness. The result analysis shows
that the effects of cracks modify the distribution of stresses and
displacements in the lining. This modification is related to concrete elasticity
modulus and mechanical crack characteristics.
