PROGRAMME   Proceedings

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Volume 1

I. Architecture and Urbanism - 33 articles

APPRAISAL OF THE CONCESSION AS A CONSTRUCTION INVESTMENT PROJECT IN THE FORM OF A PUBLIC-PRIVATE PARTNERSHIP
Konstantin Velinov, Fantina Rangelova     p. 1-7

BRIDGES - MYTHS AND REALITY
Alexander Tesár     p. 9-14

BUILT HERITAGE SUBJECTED TO EARTHQUAKE DISASTERS AND THEIR MITIGATION
Nadja Kurtović Folić     p. 15-30

KINEMATIC ANALYSIS OF 2D LINEAR STRUCTURAL MODELS WITH STRUTS AND CABELS
Banko Bankov, Ivan Vaisilov, Lyuben Lyubenov     p. 31-36

CONSERVATION OF HISTORIC BUILDINGS AND ENERGY EFFICIENCY
Fantina Rangelova, Stoyanka Ivanova, Rumyana Rizova     p. 37

CURTAIN WALLS: HISTORY AND A CONTINUING CHALENGE
Danijela Đurić Mijović, Danijela Milanović, Jelena Savić     p. 39-44

FIRST HOSPITAL BUILDINGS IN SERBIA AND THEIR PRESENT PURPOSE AND FUNCTION
Olivera Nikolić, Ana Momčilović Petronijević, Aleksandar Keković     p. 45-51

IMPACT OF THE SUSTAINABLE FACTORS IN APPRAISAL PROCESS OF CONSTRUCTION INVESTMENT PROJECT, IN THE CONTEXT OF THE SUSTAINABLE CONSTRUCTION DEVELOPMENT
Konstantin Velinov, Fantina Rangelova     p. 53-59

LIFE CYCLE COST OF ENERGY EFFICIENT BUILDINGS
Fantina Rangelova, Stoyanka Ivanova, Rumyana Rizova     p. 61

POSSIBILITIES FOR APPLICATION OF DESCRIPTIVE GEOMETRY IN THE ARCHITECTURAL-CONSTRUCTION DESIGN
Tsvetoslava Zareva-Peeva     p. 63-69

REASONS FOR THE OPTIMIZATION OF ARCHITECTURAL CREATIVITY
Nadja Kurtovic-Folic and Natasa Zivaljevic Luxor     p. 71-78

THE ARCHITECTURAL AND STRUCTURAL DEFINITION OF THE BUILDINGS AND THE PAVILIONS OF LA BIENNALE DI VENEZIA 2018, THROUGH THE 16TH INTERNATIONAL ARCHITECTURE EXHIBITION, IN GIARDINI AND ARSENALE, ON 24-25-26.05.2018
Yeşim Kamile Aktuğlu     p. 79-84

THE EXAMINATION OF ST.STEPHEN CHURCH, BUILT IN GOLDEN HORN EMBANKMENT IN ISTANBUL, WITH A STRUCTURE- CLADDED IN IRON-AND-STEEL BOARDS, INSIDE AND OUTSIDE OF AN ARCHITECTURAL SACRED SPACE
Yeşim Kamile Aktuğlu     p. 85-90

THE RECONSTRUCTION AND ADAPTATION OF THE EXISTING SCHOOL BUILDINGS: THE IMPROVEMENT OF SCHOOL PREMISES REGULATIONS IN SERBIA
Milan Tanić, Danica Stanković, Milica Živković, Vojislav Nikolić, Slaviša Kondić     p. 91-97

THE ROLE OF THE ARCHITECT IN THE SPATIAL AND FUNCTIONAL ORGANIZATION OF THE MUSEUM EXHIBITION
Olivera Nikolić, Ana Momčilović Petronijević, Vladan Nikolic     p. 99-103

THE STRUCTURAL DEFINITION OF THE BUILDINGS OF “EARTH AND MAN NATIONAL MUSEUM OF SOFIA” AND “CONTEMPORARY ART MUSEUM OF SOFIA”, FROM THE POINT OF ARCHITECTURAL DEFINITION, THROUGH THE USE OF STRUCTURAL STEEL IN CONSTRUCTION
Prof.Dr.architect Yeşim Kamile Aktuğlu     p. 105-110

ARCHITECTURE TECTONIC AND THE DIGITAL REVOLUTION IN THE PROJECTS OF ZAHA HADID
Radoslava Lesnevska     p. 111-116

WINE CELLARS ON SLOPING TERRAIN-DEVELOPMENTAL TENDENCIES AND SOLUTIONS
Dimitar Vlasarev     p. 117-123

URBAN DEVELOPMENT OF THE CITY OF RUSSE FROM THE RENAISSANCE TO 1920
Ventsislav Ignatov     p. 125-130

DEINSTITUTIONALISED HOUSING
Plamen Genov, Maria Karaboeva     p. 131-136

DEVELOPMENT OF A PUBLIC BUILDING IN A COMPLEX URBAN ENVIRONMENT, BOTEVGRAD, BULGARIA
Atanas Vassilev, Elena Dineva     p. 137-142

ИНДУСТРИАЛНОТО НАСЛЕДСТВО НА ГРАД СОФИЯ
Деляна Кирова     p. 143-147

THE CONOID IN MODERN ARCHITECTURE
Kamelia Kirilova     p. 149-154

BROTHERLY MEMORIAL MOUND – PLOVDIV. APPLICATIONSOF STRUCTURAL TYPOLOGY
Ivailo Avramov     p. 155-161

РЕКОНСТРУКЦИЯ И СОЦИАЛНА РЕВИТАЛИЗАЦИЯ НА СПОРТНИ СГРАДИ И СЪОРЪЖЕНИЯ, ИЗГРАДЕНИ В СОФИЯ ЗА НУЖДИТЕ НА ЕВРОПЕЙСКОТО ПЪРВЕНСТВО ПО ПЛУВАНЕ ПРЕЗ 1985 ГОДИНА
Елена Динева, Атанас Василев     p. 163-169

STEP BY STEP TO ENERGY CLASS A BUILDINGS (NEARLY ZERO ENERGY BUILDINGS – NZEB)
Stoyanka Ivanova, Ralitsa Yordanova     p. 171-176

СЪВРЕМЕННИ КОНСТРУКТИВНИ РЕШЕНИЯ ЗА ЕДНООТВОРНИ ЕДНОЕТАЖНИ СГРАДИ С МАЛКИ ОТВОРИ
Тодор Димитров Георгиев     p. 177

THE TERRAIN AND SPACE IN SOME RESOLVES OF THE REVIVAL ZOFGRPHS (PRELIMINARY ANALYSIS)
Blagovesta Ivanova     p. 179-184

URBANISM AND LOCAL SELF-GOVERNANCE - CHALLENGES AND OPPORTUNITIES
Ivelina Prodanova     p. 185-189

THE HYBRID HOUSING
Plamen Genov, Dara Karaboeva     p. 191-196

HYPERBOLIC PARABOLOID – POSSIBILITY TO USE IN ARCHITECTURE
Viktoria Knizharova     p. 197-202

CYLINDROID AND ITS PLACE IN ARCHITECTURE
Desislava Tsankova     p. 203-208

ШИВАШКИ ПРЕДПРИЯТИЯ С МОДНА КЪЩА, ПРИНЦИПИ НА ПРОЕКТИРАНЕ.
Борислава Александрова Манчева-Велкова     p. 209-214

II. Art and Conservation of Architectural Heritage - 8 articles

AMBIENT CONDITIONS MONITORING IN THE PROTECTIVE STRUCTURES ON THE MEDIANA ARCHEOLOGICAL SITE
Dragan Kostic, Milan Gligorijevic     p. 215-220

BRIDGES FOR INTEGRATION OF ARCHAEOLOGICAL SITES INTO METROPOLITAN AREA
Natasa Zivaljevic-Luxor, Hartmut Pasternak     p. 221-228

ROOFS AND SHELTERS FOR INTEGRATION OF ARCHAEOLOGICAL SITES INTO METROPOLITAN AREA
Natasa Zivaljevic-Luxor, Hartmut Pasternak

THE GREAT PAINTED WOODEN CHOIR LOFT OF THE SANCTUARY “SANTA MARIA DEL MONTE CARMELO" IN COLLETTO, PINEROLO, ITALY: RESTORATION AND STRUCTURAL INTERVENTION.
F. Accornero, C. Bertolini Cestari, S. Invernizzi, T. Marzi, M. Rossino, A. Spanò.     p. 229-238

MANAGEMENT IN THE PROTECTION OFTHE IMMOVABLE CULTURAL HERITAGE
Valentina Edreva     p. 239-244

OUTDOOR PAINTING AS A TOOL FOR STUDYING ARCHITECTURE AND CULTURAL ARCHITECTURAL HERITAGE CONSERVATION
Alexandra Ivanova     p. 245-250

CERAMIC BUILDING MATERIALS WITH SIGNATURE MARKS FROM THE MEDIEVAL MONASTERY OF „ST. ELIJAH" LOCATED IN THE “KOKALYANSKI URVICH” FORTRESS, XV-XVII CENTURY
Filip Petrunov     p. 251-256

ФУНКЦИИ НА НАПРЕЖЕНИЯТА ОКОЛО ЕЛИПТИЧНА ИЗРАБОТКА, ПРОКАРАНА В ТРАНСВЕРЗАЛНО - ИЗОТРОПЕН МАСИВ
Виолета Трифонова-Генова     p. 257-262

THE BLACK WAVE - VIEW IN THE PAST OR THE CONTEMPORARY PERCEPTION OF ANCIENT ARCHITECTURE
Violina Kiryakova     p. 263-271

III. Structural Mechanics - 28 articles

APLICATION OF THE CAPACITY DESIGN METHOD ON THE EXAMPLE OF STRUCTURAL WALL
Andrija Zorić, Slavko Zdravković, Predrag Petronijević, Dragan Zlatkov, Dragana Turnić     p. 273-278

CONDENSED LAGRANGE EQUATIONS
Anastas Ivanov Ivanov     p. 279-284

CRITICAL BUCKLING FORCES OF AXIALLY COMPRESSED THIN-WALLED OPEN PROFILE BARS
Slavko Zdravković, Marija Spasojević-Šurdilović, Srđan Živković, Sandra Šaković, Žarko Petrović     p. 285-290

DYNAMIC POST-BUCKLING BEHAVIUOR OF PLATE GIRDERS
Ján Ravinger and Alžbeta Grmanová     p. 291-299

EXPERIMENTAL INVESTIGATION AND STRUCTURAL ANALYSIS DUE TO DYNAMIC AND SEISMIC ACTION
Aleksandra Igić, Dragoslav Stojić, Slavko Zdravković, Biljana Mladenović, Milan Gligorijević     p. 301-305

FATIGUE DAMAGE AND REPAIR OF AN ORTHOTROPIC PLATED BRIDGE DECK AFTER 23 YEARS OF SERVICE
Philippe Van Bogaert     p. 307-316

GROUND MOTION EFFECTS FROM THE 22 MAY 2012 EARTHQUAKE, ON THE TERRITORY OF PERNIK
Radan Ivanov, Ivanka Paskaleva, Antoaneta Kaneva, Ivan Ivanchev, Anton Gorolomov     p. 317-322

MICRODAMAGE OF A CONCRETE COLUMN SURFACE-REINFORCED VIA DIFFUSION AND UNDERGOING COMPRESSION AND BENDING
Ana Yanakieva, Anguel Baltov     p. 323

NONLINEAR STATIC ANALYSIS OF MASONRY INFILLED FRAMES WITH OPEN FIRST FLOOR
Koce Todorov, Ljupco Lazarov     p. 325-336

PRESENTATION OF MONOGRAPHY: ENERGY SAVING AND SURFACE REINFORCED STRUCTURAL ELEMENTS WITH TRANSITION AREAS
Ana Yanakieva, Anguel Baltov     p. 337

PROBABILISTIC SEISMIC UPGRADING BY TIES OF OLD RC BUILDINGS CONSIDERING INPUT PARAMETERS UNCERTAINTY
A. Liolios, D. Partov, K. Liolios, B. Folic     p. 339-346

RECTANGULAR PLATES – SINGLE TRIGONOMETRIC SERIES AND EXPONENTIAL FUNCTION
Liliya B. Petrova     p. 347-353

SPACE ELASTIC INNER LINKS
Liliya B. Petrova     p. 355-361

STABILITY OF SHELLS BEYOND THE ELASTIC LIMIT
Nikola Janković, Dragan Zlatkov, Slavko Zdravković, Predrag Petronijević, Predrag Blagojević     p. 363-367

THE INFLENCE OF THE MESH DENSITIY AND CONCRETE QUALITY ON THE ACCURACY OF RESULTS IN THIN PLATES
Donata Ramljak, Vlaho Akmadžić     p. 369-378

THEOREM FOR CHANGE OF THE RIGID BODY GENERALIZED IMPULSE
Anastas Ivanov Ivanov     p. 379-385

TIME AS A PHYSICAL QUANTITY AND ITS GRAVITATIONAL RELATIVISM (GRAVITATIONAL TIME DELATION)
Konstantin Kazakov     p. 387-393

TIME DOMAIN SEISMIC SOIL-STRUCTURE INTERACTION ANALYSIS OF A NUCLEAR STRUCTURE
Milko Miloshev, Konstantin Kazakov, Marin Kostov     p. 395-402

VOLTERRA INTEGRAL EQUATIONS VERSUS (EMM) METHOD OF DISCHINGER IN ANALYSIS OF STATICALLY INDETERMINATE COMPOSITE STEEL-CONCRETE BEAMS REGARDING CREEP OF CONCRETE
Doncho N. Partov, V. K. Kantchev, Ch. P. Stoyanov and Vladimír Křístek     p. 403-411

КОНЦЕПЦИЯ ЗА ОПРЕДЕЛЯНЕ НА КОЕФИЦИЕНТА НА ПОВЕДЕНИЕ/РЕАГИРАНЕ НА ХВОСТОХРАНИЛИЩЕ ЛЮЛЯКОВИЦА
Н. Керенчев, Л. Михова, З. Бонев, Д. Кисляков     p. 413-420

FEATURES FINDING THE CRITICAL FORCES OF SYSTEM, OPERATING IN ELASTIC STAGE
Ivan Vaisilov, Ivan Dosev, Konstantin Kazakov     p. 421

MULTI-SEGMENT INTEGRATION TECHNIQUE FOR SOLVING THE STABILITY PROBLEM OF AN AXIALLY COMPRESSED COLUMN
Svetlana Lilkova-Markova, Dimitar Lolov     p. 423-428

ПРЕМЕСТВАНИЯ В ТОЧКИ ОТ КОНТУРA НА ЕЛИПТИЧНА ИЗРАБОТКА, ПРЕМИНАВАЩА В МАСИВ С ХОРИЗОНТАЛНА РАВНИНА НА ИЗОТРОПИЯ
Виолета Трифонова-Генова     p. 429-433

TEACHING FEM WITH COMPUTER ALGEBRA SYSTEM
Lyuben Lyubenov     p. 435-439

RESPONCE OF RC FLAT SLAB – COLUMN CONNECTION SUBJECTED TO ECCENTRIC APPLIED IMPULSE EXCITATIONS
Iliana Stoynova, Anita Handruleva     p. 441-446

STOCHASTIC WAY FOR CALCULATION OF STRENGTH ON CONSTRUCTION STEEL WITH CORROSION
Antonio Shopov     p. 447-452

FREQUENCY DEPENDENT DYNAMIC SOIL-STRUCTUTE INTERACTION: PART I. GRAPHIC PRESENTATION OF THE MAIN PERFORMANCES OF ТHЕ DAMPING
Stefan Tasev     p. 453-458

FREQUENCY DEPENDENT DYNAMIC SOIL-STRUCTUTE INTERACTION: PART II. RADIATION DAMPING
Stefan Tasev     p. 459-464

IV. Building Structures - 25 articles

A NUMERICAL STUDY ON THE SEISMIC RESPONSE OF A SIX-STOREY STEEL ECCENTRICALLY BRACED DUAL SYSTEM WITH EQUAL STRENGTH JOINTS
Chavdar Penelov, Irena Hadzhiyaneva, Nikolaj Rangelov     p. 465-474

ABOUT THE HISTORY OF THE STEEL TRUSS BRIDGE OVER GABRA RIVER IN THE LIGHT OF THE WORLD HISTORIC-CULTURE HERITAGE STRUCTURES
Radoslav Nikolov, Petar Grekov, Lazar Georgiev, Doncho Partov and Antoaneta Dimitrova     p. 475-482

BEHAVIOUR OF THE BASE GRID STRUCTURE REGARD TO THE SOIL REACTION COEFFICIENT
Vlaho Akmadzic, Anton Vrdoljak, Hrvoje Smoljanovic     p. 483-492

DESIGN OF FRAGILITY CURVES AND DETERMINATION OF DAMAGE STATES FOR FRAME SYSTEM RC BUILDING
Radomir Folić, Miloš Čokić     p. 493-506

DEVELOPMENT OF THE BURIED ARCH REINFORCED CONCRETE BRIDGES IN THE WORLD AND ITS APPLICATION IN BULGARIA
Doncho Partov, PetarGrekov, Vesselin Kantchev, Lena Mihova     p. 507-517

EXISTING MASONRY BUILDINGS: CONDITION, REQUIRED INTERVENTIONS AND REGULATIONS
Jelena Savić, Danijela Đurić Mijović, Danijela Milanović     p. 519-524

EXPERIMENTAL STUDY ON THE OUT-OF-PLANE STABILITY OF STEEL PORTAL FRAMES
Marin Vassilev, Nikolaj Rangelov     p. 525-535

FE MODELLING OF SANDWICH PANELS WITH SCREWED JOINT AT ELEVATED TEMPERATURES
Ashkan Shoushtarian Mofrad, Darita Shlychkova, Yvonne Ciupack, Hartmut Pasternak     p. 537-542

INFLUENCE OF THE SOIL REACTION COEFFICIENT CHANGE ON THE STEEL GRID FOUNDATION
Vlaho Akmadzic, Anton Vrdoljak, Ivan Balic     p. 543-553

SUSTAINABLE DEVELOPMENT AND CONCRETE BRIDGES
Naida Ademović

TWO MEMBRANE-CLADDED DOUBLE CURVED CABLE NET ROOFS - DESIGN, CONSTRUCTION AND ASSEMBLY
Hartmut Pasternak, Thomas Krausche     p. 555-560

FLAT FOUNDATION SLAB WITH “INVERTED” WIDE DROP PANEL. STUDY OF THE PHENOMENON PUNCHING.
Hristian Neshev     p. 561-566

ANALYSIS THE DEFORMATION OF ROAD BRIDGES WITH SMALL OPENINGS
Evelina Ivanova, Desislava Miteva     p. 567-572

EXPERIMENTAL DETERMINATION OF MODULUS OF ELASTICITY AND STRESS-STRAIN DIAGRAMS OF CONCRETE
Ivan Ivanchev, Veselin Slavchev, Ivanka Dobreva, Borislav Daalov     p. 573-578

EXPERIMENTAL DETERMINATION OF STRENGTH CHARACTERISTICS AT DIFFERENT AGE OF CONCRETE
Ivan Ivanchev, Veselin Slavchev, Ivanka Dobreva, Borislav Daalov     p. 579-584

BUCKLING RESISTANCE OF SLENDER REINFORCED CONCRETE COLUMNS IN MULTI-STOREY STRUCTURE. COMPARISON OF COLUMN BUCKLING COEFFICIENTS WITH PRECAST OR MONOLITHIC SLABS.
Hristian Neshev     p. 585-590

MODULE FOR DRAWING A T-SHAPED COLUNM AND ITS REINFORCEMENT FOR THE COLUMN TABLE OF THE STRUCTURAL PLANS IN AUTOCAD
Borislav Kozarev     p. 591-594

DESIGN OF PRESTRESSED STEEL BEAMS WITH TENDONS UNDER A LOAD OF TWO SYMMETRIC CONCENTRATED FORCES
Petko Stoyanov     p. 595-601

DESIGN OF REINFORCED CONCRETE SYMMETRIC 2T CROSS- SECTIONS WITH SYMMETRIC REINFORCEMENT UNDER BENDING MOMENT AND AXIAL COMPRESSIVE FORCE – PART 2
Vladimir Yanchev     p. 603-608

DESIGN OF REINFORCED CONCRETE SYMMETRIC 2T CROSS- SECTIONS WITH SYMMETRIC REINFORCEMENT UNDER BENDING MOMENT AND AXIAL COMPRESSIVE FORCE – PART 1
Vladimir Yanchev     p. 609-614

ORIGINAL STRUCTURAL DECISION FOR STEEL BUNKERS IN ORDER TO SPEED UP CONSTRUCTION
Todor Georgiev     p. 615-620

BASIC METHODS FOR STRENGTHENING OF REINFORCED CONCRETE FLOOR STRUCTURES
Georgi Ivanov     p. 621-626

INVESTIGATION ON THE SEISMIC BEHAVIOUR OF TWO-STORY SPLIT-X CONCENTRICALLY BRACED FRAMES. PROPOSED DESIGN CRITERIA
Lora Raycheva     p. 627-636

SEISMIC VULNERABILITY OF THE BUILDING STOCK IN THE CITY OF SEVLIEVO
Dimitar Stefanov, Elena Vaseva     p. 637-642

ЧИСЛЕНО ИЗСЛЕДВАНЕ НА МОНОЛИТНИ СТОМАНОБЕТОННИ ПЛОЧИ, УСИЛЕНИ ЧРЕЗ ВЪНШНО ПРЕДВАРИТЕЛНО НАПРЯГАНЕ НА СТОМАНЕНИ ВЪЖЕТА
Георги Иванов     p. 643

V. Building Physics and Materials Science - 3 articles

ALKALI-ACTIVATED GEOPOLYMERS BASED ON FLY-ASH – LITERATURE REVIEW AND PRELIMENARY STUDIES
Aleksandar Nikolov, Dimitar Pashov, Antoanina Koleva     p. 645-650

GEOPOLYMERS BASED ON METAKAOLIN – LITERATURE REVIEW AND PRELIMENARY STUDIES
Aleksandar Nikolov     p. 651-656

СРАВНИТЕЛЕН АНАЛИЗ НА МОДЕЛИТЕ ЗА КОНТАКТНИЯ СЛОЙ ПРИ КОМПОЗИТНИ МАТЕРИАЛИ С ЦИМЕНТОВА И ПОЛИМЕРНА МАТРИЦА
Владимир Пл. Владимиров, Венцеслав Ал. Стоянов     p. 657

VI. Technology, Management and Economics of Construction - 4 articles

ЕКСПЕРИМЕНТАЛНО ИЗСЛЕДВАНЕ НА РЕЦЕПТУРНИ СЪСТАВИ ЗА ИЗПЪЛНЕНИЕ НА СТЕНИ ЗА УКРЕПВАНЕ НА ИЗКОПИ ПО ТЕХНОЛОГИЯТА „DEEP MIXING”
Лъчезар Хрисчев, Чавдар Колев, Петя Стоева     p. 659

КОНТРОЛ НА КАЧЕСТВОТО ПРИ ПРОИЗВОДСТВОТО НА СГЛОБЯЕМИ СТОМАНОБЕТОННИ ЕЛЕМЕНТИ
Симеон Мотев, Евгения Богданова, Лъчезар Хрисчев     p. 661

ASSESSMENT OF CONFORMITY OF DRY MIXTURES FOR ADHESIVES ACCORDING TO UPDATED HARMONIZED EUROPEAN STANDARDS
Ivanka Dobreva     p. 663-668

THE CHALLENGES TO THE CONSTRUCTION COMPANY IN CHANGE OF THE MARKETING FRAMEWORK IN CONDITIONS OF DIGITAL ECONOMY
Iva Nikolova     p. 669-673

VII. Sustainable Development and Environmental Security - 12 articles

SUSTAINABLE DEVELOPMENT AND CONCRETE BRIDGES
Naida Ademović     p. 675-686

EMERGENCY STRENGTHENING OF ACTIVE LANDSLIDE IN THE TOWN OF BANKYA
Georgi Frangov, Stefan Frangov     p. 687-694

ANALYSIS OF THE ECOLOGICAL EFFECTIVENESS OF CONSTRUCTION MATERIALS IN BULGARIA
Izabela Mihova, Ralitza Berberova     p. 695

АНАЛИЗ НА КРИТЕРИИТЕ ЗА „ЗЕЛЕНИ” СТРОИТЕЛНИ МАТЕРИАЛИ
Венцеслав Стоянов, Вилма Петкова, Екатерина Серафимова     p. 697

ECOLOGICAL AND ECONOMIC OPPORTUNITIES FOR THE UTILIZATION OF CARBONATE WASTE
Ventseslav Stoyanov, Vilma Petkova, Ekaterina Serafimova, Tiit Kaljuvee     p. 699-705

SURVEY OF A ROCKFALL SLOPE IN THE ISKAR GORGE
Stefan Frangov     p. 707-712

THE NEW ASPECTS IN A PART “SOIL BODY” OF THE NEW ROAD DESIGN STANDARD NO RD-02-20-2 IN BULGARIA – PART 1
Irena Sulay     p. 713-718

THE NEW ASPECTS IN A PART “SOIL BODY” OF THE NEW ROAD DESIGN STANDARD NO RD-02-20-2 IN BULGARIA – PART 2
Irena Sulay     p. 719-724

EXCLUDED FROM THE NORMS AND REQUIREMENTS OF THE PROJECT FOR DEVELOPMENT OF THE RAILWAY JUNCTION SOFIA, CONTRACT 1
Stoyo Todorov     p. 725-730

DETERMINATION OF CORROSION ON SURFACE ELEMENTS BY A USING A GRAPHICAL DIGITAL IMAGE
Antonio Shopov, Borislav Bonev     p. 731-736

PRINCIPAL MOUNTING SCHEMES OF PV PANELS ONTO HIGHWAY SNOW-PROTECTION FACILITIES – PART 1
Stoyanka Ivanova, Evelina Ivanova     p. 737-742

PRINCIPAL MOUNTING SCHEMES OF PV PANELS ONTO HIGHWAY SNOW-PROTECTION FACILITIES – PART 2
Evelina Ivanova, Stoyanka Ivanova     p. 743-748

VIII. Student Section - 2 articles

FLUID-STRUCTURE-INTERACKTION OF THE RECTANGULAR TANK
Lenka Uhlirova     p. 749-754

USAGE OF 3D ELEMENTS IN MODELLING OF THE RECTANGULAR TANK
Lenka Uhlirova     p. 755-760

Volume 2

I. Architecture and Urbanism - 4 articles

ECOLOGY FRIENDLY HIGH POWER WIND TURBINES OPERATING IN THE URBAN ENVIRONMENT
Venelin Jivkov, Simeon Panev, Venkatanathan Natarajan, Philip Philipoff, Petar Mandiev, Blagovest Simeonov, Silvia Mitkova, Yordan Tankovsky     p. 1-10

MODELS IN ARCHITECTURAL EDUCATION AND PRESENTATION
Milanka Vasić, Ana Momčilović-Petronijević, Ljiljana Jevremović, Marina Jordanović     p. 11-20

CONCEPTUAL INNOVATIVE DESIGN OF SKYSCRAPERS
Yanko Aleksandov     p. 21-27

NEW SOLUTION WITH INVENTIVE STEP FOR SKYSCRAPERS MADE OF CONTAINERS
Yanko Aleksandov     p. 29-34

II. Art and Conservation of Architectural Heritage - 6 articles

SHAPING THE TOWNSCAPE OF THE 19TH CENTURY VELIKO TARNOVO: THE ROLE OF THE COMMERCIAL ARCHITECTURE
Radosveta Kirova     p. 35

SEPULCHRAL ARCHITECTURE: STEĆAKS – TOMBSTONES FROM BOSNIAN KINGDOM
Maja Popovac, Boris Trapara, Merima Šahinagić-Isović, Amra Šarančić-Logo, Muamer Đulović     p. 37-48

TABAČICA MOSQUES IN BOSNIA AND HERZEGOVINA - TABAČICA MOSQUE IN MOSTAR CASE-STUDY
Maja Popovac, Merima Šahinagić- Isović, Amra Šarančić Logo and Marko Ćećez     p. 49

КУПОЛЪТ В ПРАВОСЛАВНИЯ ХРАМ. КОМПОЗИЦИОННО-СТРОИТЕЛНИ ПРОБЛЕМИ.
Димитър Гочев     p. 51

ЦЕНТРАЛНА МИНЕРАЛНА БАНЯ - ИСТОРИЯТА НА ЕДНА ЕМБЛЕМАТИЧНА СГРАДА.
София Лостова     p. 53

ЦЪРКВАТА "ВЪВЕДЕНИЕ БОГОРОДИЧНО" В БЛАГОЕВГРАД, ИЗПИСАНА 1882-1889 Г. – ПАМЕТНИК НА КУЛТУРАТА, НУЖДАЕЩ СЕ ОТ СПЕШНА РЕСТАВРАЦИЯ
Николай Томов Николов     p. 55-71

III. Structural Mechanics - 15 articles

ASSESSMENT OF EQUIVALENT DIAGONAL STRUT WIDTH IN STRUT ANALYSIS MODELS OF INFILLED RC FRAMES
Velian Petkov     p. 73-82

BASIC LINEAR VISCOELASTIC MODEL UNDER OSCILLATORY LOAD IN ISOTHERMAL SURROUNDINGS
Ivana Veghova, Jozef Sumec     p. 83-87

BEARING CAPACITY OF STEEL CORRUGATED ARCH-SHAPED SHEETS WITH IMPERFECTIONS WHEN EXPOSED TO FIRE
Mariusz Maślak, Michał Pazdanowski, Maciej Suchodoła     p. 89-97

BRIDGE INSTRUMENTATION FOR STRUCTURAL HEALTH MONITORING
Maria – Cristina Scutaru, Nicolae Țăranu, Cristian – Claudiu Comisu, Dragoș Ungureanu, Iuliana Hudișteanu, Dan – Alexandru Ghiga     p. 99-104

SIMPLIFIED AND REFINED ANALYSES FOR SEISMIC INVESTIGATION OF HISTORICAL MASONRY AGGREGATES: COMPARISON OF RESULTS AND POSITION INFLUENCE OF STRUCTURAL UNITS
Antonio Formisano, Giovanni Chiumiento     p. 105-110

CURVED ORTHOTROPIC STEEL DECK ABC BRIDGES
Alfred Mangus, Steve J. Lee, Greg Kaderabek     p. 111-120

DYNAMIC ANALYSIS OF THE SOIL-STRUCTURE SYSTEM
Andrija Zoric, Slavko Zdravković, Nebojša Davidović, Dragana Turnić, Srđan Živković     p. 121-126

FRP ADHESIVELY BONDED JOINTS SPECIMEN PREPARATION AND TESTING PROCEDURES
Dragoș Ungureanu, Nicolae Țăranu, Maria Cristina Scutaru, Iuliana Hudișteanu, Dan Alexandru Ghiga     p. 127-133

A HIGH-RISE BUILDING SUBJECTED TO DYNAMIC EFFECTS
Tvrdá Katarína     p. 135-140

INNOVATIVE SYSTEM FOR THE BUILDING PROTECTION FROM SEISMIC EFFECTS
Slavko Zdravković, Petar Mitković, Dragan Zlatkov, Dragana Turnić, Nikola Stojić     p. 141

INTERLAMINAR STRESSES ANALYSIS ON QUASI-ISOTROPIC COMPOSITE LAMINATES
Iuliana Hudișteanu, Nicolae Țăranu, Dragoș Ungureanu, Maria Cristina Scutaru     p. 143-148

MODERN STRATEGES FOR PROTECTION OF BUILDING STRUCTURES AGAINST STRONG GROUND MOTIONS (EARTHQUAKES)
Venelin Jivkov, Simeon Panev, Venkatanathan Natarajan, Philip Philipoff, Petar Mandiev, Blagovest Simeonov, Silvia Mitkova, Yordan Tankovsky     p. 149-154

PREDECTIVE SEISMIC DAMAGE SCENARIOS AND LOCAL HAZARD EFFECTS OF THE HISTORICAL CENTRE OF SENERCHIA (AVELLINO, ITALY)
Antonio Formisano and Nicola Chieffo     p. 155-161

SHAPE FUNCTIONS EFFECT IN GEOMETRIC NONLINEAR FINITE ELEMENT ANALYSIS OF ROD SYSTEMS
Ivana Véghová, Martin Psotný     p. 163-168

RESPONSE SPECTRA FOR SEISMIC EVALUATION OF OVERHEAD BRIDGE CRANES
K. Radlov, D. Dinev, V. Tepeliev     p. 169-177

IV. Building Structures - 11 articles

50 YEARS OF BRIDGE MANAGEMENT IN USA: 1968 - 2018
Bojidar Yanev, Sc. D., P. E.     p. 179-190

DESIGN AND CONSTRUCTION OF HISTORIC MASONRY AND TIMBER STRUCTURES REHABILITATION IN SERBIA
Boško Stevanović     p. 191-206

MECHANICAL PROPERTIES AND NUMERICAL ANALYSIS OF SANDWICH PANELS
Eva Kormaníková, Kamila Kotrasová     p. 207-216

SEISMIC HAZARD AS NATURAL PHENOMENON
Andrija Zorić, Slavko Zdravković, Stojić Dragoslav, Sandra Šaković, Aleksandra Igić     p. 217-222

STRENGTHENING OF STEEL COLUMNS UNDER LOAD: DESIGN METHOD
Martin Vild, Miroslav Bajer     p. 223-228

SOME PROTECTION STRATEGIES OF BUILDINGS AGAINST STRONG EARTHQUAKES
Venelin Jivkov, Simeon Panev, Philip Philipoff, Petar Mandiev, Blagovest Simeonov, Silvia Mitkova     p. 229

THE POSSIBILITIES OF FEM MODELLING THE ENDLESSLY LIQUID - FILLED RECTANGULAR CHANNEL
Kamila Kotrasová, Eva Kormaníková     p. 231-237

DETAILING IN R.C. COLUMNS WITH VARIABLE CROSS-SECTIONS
Stanislav Tsvetkov

ИНОВАТИВНИ РЕШЕНИЯ ПРИ ОСИГУРЯВАНЕ СЪОТВЕТСТВИЕТО НА МЕХАНИЧНОТО СЪПРОТИВЛЕНИЕ И УСТОЙЧИВОСТТА НА СЪЩЕСТВУВАЩИ СТРОЕЖИ С ИЗИСКВАНИЯТА НА СЪВРЕМЕННИТЕ СТРОИТЕЛНИ НОРМАТИВИ
Румен Гуглев, Константин Кулинов, Момчил Пощов     p. 239

STRUCTURAL SOLUTIONS OF HIGH BUILDING
Rafail Rafailov, Stanislav Tsvetkov     p. 241-246

SOFTWARE PRODUCTS FOR DESIGN OF SPIRAL STAIRS
Borislava Tsoneva     p. 247-252

V. Building Physics and Materials Science - 3 articles

ISOLATION CAPACITY OF MATERIALS AND ITS RELATION TO THE ACOUSTIC ISOLATION OF ROOMS
Aleksandra Igić, Dragoslav Stojić, Slavko Zdravković, Tomislav Igić, Katarina Medar     p. 253-259

LABORATORY SHEAR WAVE VELOCITY EVALUATION OF SOFIA SAND BY MEANS OF BENDER-ELEMENTS
Nikolay Milev, Junichi Koseki     p. 261-276

ПРОБЛЕМИ ПРИ ПРОЕКТИРАНЕТО И ИЗПЪЛНЕНИЕТО НА ЕНЕРГИЙНОТО ОБНОВЯВАНЕ НА ОГРАЖДАЩИТЕ КОНСТРУКЦИИ НА СЪЩЕСТВУВАЩИ СГРАДИ У НАС
Д. Назърски     p. 277

VI. Technology, Management and Economics of Construction - 4 articles

APPLICATION OF MS PROJECT FOR REPRESENTATION OF GRAPH OF TRUCK MIXER MOVEMENT
Biljana Matejević Jelena Stojiljković     p. 279-285

APPLICATION OF THE CRITERIA DECISION MAKING METHOD - PROMETHEE FOR OPTIMAL CHOICE OF MACHINERY
Jelena Stojiljković Biljana Matejević     p. 287-292

DETERMINING OF THE OPTIMAL NUMBER OF DUMPER BY THE MASS SERVING THEORY
Jelena Stojiljković Biljana Matejević     p. 293-298

REGRESSION MODEL FOR PREDICTING DURATION OF UNLOADING CONCRETE FROM A TRUCK MIXER
Biljana Matejević Jelena Stojiljković     p. 299-305

VII. Sustainable Development and Environmental Security - 5 articles

SUSTAINABLE CITY CENTERS: OFFICE TO HOUSING CONVERSION
Milica Zivkovic, Milan Tanic, Slavisa Kondic, Vojislav Nikolic     p. 307-312

THE SEISMIC RISK AND SEISMIC ACTION DEFINITION FOR THE PURPOSE OF PLANNING AND DESIGNING
Ivana Mihajlović, Slavko Zdravković, Marija Spasojević Šurdilović, Biljana Mladenović, Snežana Nikolov     p. 313-317

TSUNAMI WAVES AND OTHER EARTHQUAKE ACCOMPANYING PHENOMENA
Ivana Mihajlović, Slavko Zdravković, Dragan Zlatkov, Dragana Turnić, Tijana Đorđević     p. 319-324

WATER INCREASE THROUGH THE RIVERBED IN THE ZONE OF BRIDGE NARROWING
Dragan Zlatkov, Slavko Zdravković, Tomislav Igić, Srđan Živković, Nikola Janković     p. 325-329

LABORATORY AND FIELD TESTS FOR DETERMINING THE TECHNOLOGICAL PROPERTIES OF EARTH BUILDING MATERIALS
Dimitar Pashov     p. 331-336