2. ARCHITECTURE&CONSTRUCTION AGENCY
The Architecture&Construction Agency (ACA) has been
founded as a private company in 1993 with a separate department for
design of steel and reinforced concrete structures. During the last years
ACA took active part in the technological modernization of the cement
industry in Bulgaria.
Various customers and investors have chosen ACA to design
industrial and civil structures including unique industrial facilities. The
Agency is renowned for its quality design, strict dead lines keeping and
flexibility when design modifications do need to occur. The design
process is entirely computerized and uses up-to-date technology. ACA
design team has an expert level in using specialized software such as
ArchiCAD for architectural drawings, AutoCad for detailed and
workshop drawings, SAP2000 for static, dynamic and earthquake
analysis of structures.
When contracted ACA performs full engineering of industrial
facilities.
ACA OFFERS ITS CUSTOMERS:
m Pre-design investigation, expertise, consulting services, advice
on legal matters related to the design, construction and
reconstruction of each particular project;
Expert evaluation of the condition of existing structures and
facilities;
Preparation of contract drawings and bidding documentation;
m Complex design and approval of the project.
Preparation of basic design drawings, engineering calculations
and reports presented for approval by the customer and the
State Authorities
Workshop and detailed drawings, engineering calculations and
reports presented for approval by the customer and the State
Authorities including Independent Monitoring Agency;
m Author's Control during erection and construction including
preparation of 'Executive/As-Built' documentation with all
modifications occurred at site
m Additional services as preparation of an estimate based on the
design documentation, project construction time schedule,
project business plan, project coordination till plant start-up, etc.
3. ARCHITECTURE&CONSTRUCTION AGENCY
ACA CONSULTS ITS CUSTOMERS ON:
m Legal matters related to the design, construction and
reconstruction
m Local code related to the design of each particular project
m Structural, constructional and technological matters related to
the industrial sector
m New and traditional materials
m Specialized software
ACA DESIGNS INDUSTRIAL FACILITIES SUCH AS:
m Steel and reinforced concrete industrial facilities and structures
m Steel silos, hoppers, bins, reservoirs, ducts
ACA DESIGN TEAM
m ACA has a team of highly qualified full-time engineers and
draftsmen well experienced with modern computer technology
and software packages such as ArchiCAD, AutoCAD, SAP 2000;
m ACA works in close relationship with renowned companies from
the construction and industrial sectors including steel fabrication
and erection firms;
m ACA extends its team of engineers with young university
graduates with excellent academic background and promising
career start
Address for information and correspondence:
Architecture&Construction Agency, Engineering Department
Bulgaria, 9000 Varna
1, ILARION MAKARIOPOLSKI str., Fl. 2
Tel./Fax: +359 52 687 555, +359 52 687 556
Contact name: Georgi Vitanov
+359 52 630 898, +359 52 630 899 e-mail: office@acahold.com
4. Вулкан 6400 Димитровгpag 6400 Dimitrovgrad
България Bulgaria
Vulkan meл. 0391 23421 Tel +359 391 23421
Italcementi Group фakc 0391 23512 Fax +359 391 23512
REFERENCE
To Whom It May Concern
Architecture&Construction Agency Ltd. (ACA) has been chosen by ItalCementi Group to
perform full engineering services on the Coal Mill Project in the Vulkan Cement Plant,
Dimitrovgrad, Bulgaria. The total of 9 months design and construction duration time for the
project began in March 2000 and finished in December 2000 with installation start-up. The new
Coal Mill Facility is now used to supply Kilns 3&4 with grounded mixture of coal and coke
instead of the expensive natural gas.
ACA in cooperation with TAI (Italian engineering company that supplied basic design for the
project) and CTG (Engineering Department of ItalCementi Group that approved all drawings
during design) prepared and supplied the following documentation:
− civil works foundations (engineering calculations, reports and detailed drawings)
− steel supporting structures (engineering calculations, reports and detailed drawings)
− ducts, chutes, compensators (engineering calculations, reports and detailed drawings)
− coal dust silo (engineering calculations, reports and detailed drawings)
− steel structure covering the coal mill, cladding with corrugated steel sheets, stairways,
galleries for belt conveyors, service platforms, etc. (engineering calculations, reports and
detailed drawings)
− steel doors (detailed drawings)
− authorization of the electrical installation documentation (project drawings and reports
supplied by and in cooperation with the Italian Company Seit)
For this particular project ACA engineering team used software packages such as ArchiCad for
architectural drawings, AutoCad 2000 for detailed and workshop drawings, MATHCAD for
calculation reports, SAP 2000 for modeling and static, dynamic and earthquake engineering
calculations based on FEM, etc. The final documentation was supplied by ACA as a hard copy
and computer files.
Peгucmpupaно в Okpъжeн Съg - Xackoвo Registered in Haskovo District Court
nog фирмено geло N° 39/1990 under Company Pile No.39/1990
Данъчен N» 1260000485 Tax registration No.1260000485
BУЛCTAT 836145646 Ю BULSTAT 836145646 Ю
5. ACA team of young and highly qualified Civil and Structural Engineers (all university graduates)
managed to supply in short terms an excellent Job on a unique for the Bulgarian Industry coal mm
instalfation. During the design development of the project substantial restrictions appeared due to
the fact that some new equipment had to be placed inside an old existing building increasing
heavily the job complexity. During the whole contract and duration of the project ACA engineers
provided reiable services in the field of the Industrial Civil and Structural engineering as well as
Workshop Detailing. All ItalCementi project requirements and deadlines were kept within narrow
limits ACA engineering department took full advantage of the modem IT and computer
Sology thus being able to send, receive and process massive number of computer drawings
per day. ACA easily achieved a high quality end product, which was initial compulsory
requirement by ItalCementi for granting the full engineering service contract. Personally was
very impressed by the professionalism of ACA engineers in their everyday contact with their
CTG, TAI and Seit colleagues. The result was cost effective coordination and quick approval of
drawings.
I do consider ACA engineering team as very experienced and professional in the area of industrial
construction and modernization and have the pleasure to sign this recommendation addressing it
to any Bulgarian or foreign investor.
Sincerely Yours,
P. Grancharov, M.Sc.
Modernization and Reconstruction Project Manager
6. Девня Цимент 9160 Девня 9160 Devnya
Промишлена зона Industrial Zone
Devnya Cement България Bulgaria
Italcementi Group meл. 0519 2420 Tel +359 519 2420
meл. 052 691484 Tel +359 52 691484
фakc 0519 3214 Fax +359 519 3214
REFERENCE
To Whom It May Concern
Architecture&Construction Agency Ltd. (ACA) received its first contract with Devnya
Cement in 1997 to perform engineering and structural services on the project 'Coal Mill
Facility for Kilns 5&6'. This facility in operation since 1999 supplies Kilns 5&6 with
grounded mixture of coal and coke instead of the expensive natural gas.
ACA in cooperation with Loesche GmbH (German manufacturer and supplier of the
coal mill unit) prepared and supplied the following documentation:
− civil works foundations (engineering calculations, reports and detailed drawings)
− steel supporting structures (engineering calculations, reports and detailed drawings)
− ducts, chutes, compensators (engineering calculations, reports and detailed drawings)
The next contracts awarded by Devnya Cement to ACA in cooperation with Christian
Pfeiffer (Austrian manufacturer and supplier of grinding equipment) were for
engineering services for the reconstruction of Cement Mills 3&2&1 with modification
from open to closed technological cycle (filters, separators and related equipment).
Cement Mill 3 project ended in 1998, Cement Mill 2 project ended in 1999 and Cement
Mill 1 project is planned for year 2002. ACA supplied workshop drawings for all
relevant steel supporting structures and service platforms.
In 2000 Christian Pfeiffer (supplier of the new equipment for Cement Mills 3&2&1)
together with ItalCementi Group contracted ACA to perform an earthquake analysis of
the existing cement mill building and to estimate the influence of the new structures and
loads on the building. A detailed model of the building was created. The earthquake
analysis proved that certain structural elements of the existing cement mill building
needed modification and reinforcement due to new substantially greater dead and service
loads. ACA engineering department prepared detailed drawings for the reinforcement.
The project was finished at the end of 2000.
For the contracts mentioned above ACA engineering team used software packages such
as ArchiCad for architectural drawings, AutoCad 2000 for detailed and workshop
drawings, MATHCAD for calculation reports, SAP 2000 for modeling and static,
dynamic and earthquake engineering calculations based on FEM, etc. The final
documentation was supplied by ACA as a hard copy and computer files.
Peгucmpupaно 6 Окръжен Съд -- Bapнa Registered in Varna District Court
nog фupмeно geло №4997/1993 under Company File No.4997/1993
Данъчен N» 1038008192 Tax registration No.1038008192
BУЛCTAT 8131098330 BULSTAT 8131098330
7. ACA team of young and highly qualified engineers (all university graduates) proved
their ability to offer in short terms high quality engineering solutions to the complex
demands for modernization and reconstruction in the Bulgarian cement industry in the
late 90's. During the design development of the projects supervised by me all
requirements and deadlines were kept within narrow limits.
The high quality end product that ACA persistently achieved would be a great advantage
to any organization especially if cost effective coordination and quick approval of
drawings is needed.
I do consider ACA engineering team as very experienced and professional in the area of
industrial construction and modernization and have the pleasure to sign this
recommendation addressing it to any Bulgarian or foreign investor.
Sincerely Yours,
P. Grancharov,
M.ScModernization and Reconstruction Project Manager
8. Christian Pfeiffer
Systems and components
REFERENCE
Christian Pfeiffer started to work with Architecture&Construction
Agency in 1998 on the cement mill No. 3 modernization project located
at the Devnya Cement Plant, Varna, Bulgaria. The deadline for the
project was 6 months, a very short time for such reconstruction. The job
consisted of partial modification of the main structure of the cement mill
building and an addition of a new structure for our equipment. Based on
our technological flowsheet and preliminary drawings ACA engineering
team in short time managed to produce quality workshop and detailed
documentation for fabrication and erection purposes.
After the initial successful business relationship in 1998 during the
next two years Christian Pfeiffer and ACA managed to modernize and
reconstruct also Cement Mill No. 2 and part of Cement Mill No. 1.
Due to new and substantially greater dead and service loads on
the cement mill building an earthquake survey and structural
modification for strengthening of the existing building was necessary.
ACA received an order and its team accomplished the job in less than
three months. The final documentation consisted of a very detailed
earthquake analysis and workshop drawings for steel structure
modifications.
It was a pleasure for us to work with ACA young and ambitious
engineering team during the past three years. I would also recommend
ACA as a reliable partner for engineering services to any eventual investor in
the Bulgarian Industry or abroad.
11. ARCHITECTURE&CONSTRUCTION AGENCY
Raw Materials Steel Silos
Steel Reservoirs
for Water and Fuel
High and Low Pressure
Steel Vessels
Coal Dust Silo
Vulkan Cement Plant,
Dimitrovgrad, Bulgaria
Operational December, 2000
12. ARCHITECTURE&CONSTRUCTION AGENCY
Steel Structures for
Belt Conveyor Galleries
3D Truss Steel Structures
Belt Conveyor Gallery,
Coal Supply to Grinding Unit
Vulkan Cement Plant,
Dimitrovgrad, Bulgaria
Operational December, 2000
13. Belt Conveyors
Chain Conveyors
Roller Conveyors
Static&Dynamic&Earthquake
Analysis of all kinds of
Steel Structures
Mobile Steel Structures
Driving&Driven Mechanisms
Calculation Model for
Floating Facilities
14. ARCHITECTURE&CONSTRUCTION AGENCY
Feeding Duct from Coal Dust Silo
to Kilns 3&4
Vulkan Cement Plant,
Dimitrovgrad, Bulgaria
Operational December, 2000
Hot/Cold
High/Low Pressure
Gas Ducts
Pneumatical
Transportation
Ducts
Duct from Hot Gas Generator
to Coal Mill
Vulkan Cement Plant,
Dimitrovgrad, Bulgaria
Operational December, 2000
