Boris Dobrev Portfolio by Boris Dobrev

MSc1-2019-2020 p.21-27

BSc-2017-2018 p.35-38

A SPACE FOR THE COMMUNITY THE GRANDSTAND

COHOUSING CARDIFF

MSc2-2020-2021 p.2-19

BSc-2018-2019 p.29-33

BSc-2016-2017 p.40

RIGOROUS CREATIVITY BLACK SEA TOWER

OPEN ARCHITECTURE

A SEA HIDEAWAY

ARCHITECTURE PORTFOLIO BORIS DOBREV MArch

Interactive parts of the portfolio These pictograms are unique for each project. For divider pages, there are inactive, were for every other page it will return you to the corespondent page divider.

MSc1-2019-2020 p.21-27

A SPACE FOR THE COMMUNITY THE GRANDSTAND

GAS This type of illustration is used for an available video explanation (all links for the videos are from Youtube)

This interactive part is located in divider pages and will return you to the cover page.

MSc2-2020-2021 p.2-19

RIGOROUS CREATIVITY BLACK SEA TOWER

The cover page is a table of contents as well. It has interactive parts which will send you to the correct divider page for the corespondent design. This is a link to my current CV which has interactive parts for my contacts (this pictogram is located just on this page)

MArch 2016 2017 2018 2019 2020 2021

Burgas BLACK SEA TOWER

is in tr o d

MArch 2016 2017 2018 2019 2020 2021

re e-

io n

corded_

s he

(2020-21) Rigorous Creativity

Our modern world creates new challenges to contemporary architects.Modern buildings must be adapted to their environment and the communities for which they are intended. The generation of shape variants and their optimization is directly related to the development of technologies in architectural design and facilitates the creation of unique modern projects directly responding to the contemporary aesthetic views of their future users. Inspired by the Chaos theory I defined my architectural language and basic tools through which I generated forms (attractors and boundary lines that attract spaces and watersheds that repel them). The main idea is to create an algorithm in which by analyzing the specific site we can get our necessary database that will lead to generation of shape variations and optimization of architectural structures. The Black Sea Tower integrates technology computational methods and applied geometry. It is designed on the principle of contrast and balance at the same time , responding directly to the heavy horizontal and vertical residential buildings from the Soviet era that surround it. The basic aim is to get a balance between the static old building environment and the dynamic new tower and to answer the challenge how they can coexist.

Dr Wassim Jabi

Burgas sea world

GAS

Burgas Wetlands

Burgas The Site

Black Sea

The Black Sea is an inland sea open to the world’s oceans only through the Bosphorus and Dardanelles. The sea has the unique feature to accumulate hydrogen sulfide at greater depths so that due to the poor circulation of oxygen enriched water masses from the surface below 100 m there is a lack of oxygen and therefore any living conditions for marine organisms. Thus, due to this natural phenomenon, a large number of archaeological finds that have fallen to the bottom have been preserved. This feature of the Black Sea attracts the attention of local and global organizations in the field of marine archaeology and biology, ecology, environmental protection and maritime business. Among the main goals of the scientists is the protection of Black sea and its inhabitants, as well as the study of existing archaeological finds, silent witnesses of all the ancient cultures and civilizations that inhabited the region.

Remains of the oldest preserved shipwreck in the world are found at the Black Sea bottom.

Historic review

Bus hub

The city of Burgas emerged as a humble fishing village. In the middle of the 20th century it underwent rapid growth as a result of mass migration from the countryside to the city and the rapid industrialization of the country. In order to meet the need for housing, new neighborhoods are being built, consisting of medium-rise panel buildings and high-rise apartment towers, which locals call “bedroom neighborhoods” due to the entirely residential construction and lack of any social spaces. Until recently, people who lived in the horizontal structure of the village settled in vertical towers with almost the same capacity as a small village, but without taking into account the need for social contact and mutual communication.

The site

1924 - Italian Quarter

Train station 1965 - New neighborhoods Harbour

Main road

1840 - Old City

Site analysis

Positive aspects of the site - It borders a recreational area / seaside park / - Open sea view - In a mixed construction zone / mixed-use plot / - Proximity to a shopping area - Communicative plot: facilitated bicycle access - Convenient bus access / close to the bus station / - Outside the old town area / protected area of architectural monuments in the town’s historic centre/ - Plot of land with permitted high-rise construction - Proximity to the city center - Convenient proximity to a fast bus corridor/ transport hub / easy access to any point of the city by public transport

Negative aspects of the site - A first-class road separates the site from the coastal park - Relatively difficult pedestrian connection with the city center - In the neighborhood built in the 70s of XX century 18-storey residential buildings / large-area formwork / for renovation and 8 - 10-storey panel residential buildings - Insufficient public parking lots - Existing underground engineering infrastructure

Chaos theory-main tools and precedents Zero-dimensional point attractor An example of this type of attractor is a pendulum.Regardless of its initial speed and position, it always strives for rest point, that is, for a point of equilibrium. The movement of pendulum is affected by forces of friction and gravity therefore its trajectory is spiral. The final result when uniting two systems.

1.The Gherkin,London,Foster + Partners System of 18 spiral iterations, applied in both directions to the central axis of rotation.

One-dimensional attractor.Limit cycle

System with 6 spiral iterations. Growth factorK - 1.3

Reflection / axial symmetry

䈐䎀䐐䐠䍐䏀䌀ÿ䐐ÿ9ÿ䐐䏰䎀䐀䌀䎰䏠䌠䎀䍀䏐䎀ÿ䏰䏠䌠䐠䏠䐀䍐䏐䎀䓰ÿ2䎀䐠䍐䐀䌀䑠䎀䎀24ÿÿ 䆠䏠䍐䑀䎀䑠䎀䍐䏐䐠ÿ䏐䌀ÿ䏐䌀䐀䌀䐐䐠䌠䌀䏐䍐ÿ7ÿ䆠8(4=

䇠䌰䎰䍐䍀䌀䎰䏐䌀ÿ2䏠䐐䏠䌠䌀2ÿ䐐䎀䏀䍐䐠䐀䎀䓰

䈐䎀䐐䐠䍐䏀䌀ÿ䐐ÿ9ÿ䐐䏰䎀䐀䌀䎰䏠䌠䎀䍀䏐䎀ÿ䏰䏠䌠䐠䏠䐀䍐䏐䎀䓰ÿ2䎀䐠䍐䐀䌀䑠䎀䎀24ÿÿ 䆠䏠䍐䑀䎀䑠䎀䍐䏐䐠ÿ䏐䌀ÿ䏐䌀䐀䌀䐐䐠䌠䌀䏐䍐ÿ7ÿ䆠8(49

䇠䌰䎰䍐䍀䌀䎰䏐䌀ÿ2䏠䐐䏠䌠䌀2ÿ䐐䎀䏀䍐䐠䐀䎀䓰

䆠䐀䌀䍐䏐ÿ䐀䍐䍰䐰䎰䐠䌀䐠ÿ䏰䐀䎀ÿ䐐䏀䍐䐐䌠䌀䏐䍐ÿ䏐䌀ÿ䍀䌠䍐䐠䍐ÿ䐐䎀䐐䐠䍐䏀䎀

2.Marina City, Chicago, USA Architects: Bertrand Goldlrerg

Chaotic attractor. Toroidal attractor This attractor has the appearance of a closed curve. An example can be given again with pendulum, but in case the friction force is neglected. Then its trajectory will be a circle.

䈐䎀䐐䐠䍐䏀䌀ÿ䐐ÿ()ÿ䐐䏰䎀䐀䌀䎰䏠䌠䎀䍀䏐䎀ÿ䏰䏠䌠䐠䏠䐀䍐䏐䎀䓰ÿ2䎀䐠䍐䐀䌀䑠䎀䎀24ÿÿ 䆠䏠䍐䑀䎀䑠䎀䍐䏐䐠ÿ䏐䌀ÿ䏐䌀䐀䌀䐐䐠䌠䌀䏐䍐ÿ7ÿ䆠8(49

䇰䐀䎀䏐䑠䎀䏰ÿ䏐䌀ÿ䏠䌰䎰䍐䍀䌀䎰䏐䌀ÿ2䏠䐐䏠䌠䌀2ÿ䐐䎀䏀䍐䐠䐀䎀䓰䇰䏠䐐䏠䎠䌀ÿ䏐䌀ÿ䍀䌠䎀䍠䍐䏐䎀䍐ÿ䏐䌀ÿ䐐䏰䎀䐀䌀䎰䎀䐠䍐ÿ7ÿ䏰䏠7ÿ䎀ÿ䏠䌐䐀䌀䐠䏐䏠ÿ 䏐䌀ÿ䑰䌀䐐䏠䌠䏐䎀䎠䏠䌠䌀䐠䌀ÿ䐐䐠䐀䍐䎰䎠䌀4

䆠䐀䌀䍐䏐ÿ䐀䍐䍰䐰䎰䐠䌀䐠ÿ䏰䐀䎀ÿ䐐䏀䍐䐐䌠䌀䏐䍐ÿ䏐䌀ÿ䍀䌠䍐䐠䍐ÿ䐐䎀䐐䐠䍐䏀䎀䏠䐠ÿ䐐䏰䎀䐀䌀䎰䎀ÿ䎀ÿ䎠䏠䏠䐀䍀䎀䏐䌀䐠䏐䌀䐠䌀ÿ䐐䎀䐐䐠䍐䏀䌀ÿ䏠䐠ÿ䎠䏠䏐䑠䍐䐠䐀䎀䑰䏐䎀ÿ 䏠䎠䐀䒠䍠䏐䏠䐐䐠䎀4

Cheotic Attractors 3.National Olympic Stadium , Beijing, China Architects:Herzog & de Meuron

Structure and Envelope generation Generating construction

Construction behaviour

Loads

Point loads are used, which are located along the limit cycle (boundary) lines of the attractors, in order to generate the construction of the building thus generating new variants.

Loads Limit cycle

Limit cycle

Loads

Limit cycle

Limit cycle Loads

Loads

Limit cycle

Diagram of Load positions and possible movements

Generated structure with selected load positions

Skin generating 3

Top view of section 3-3

Sliced construction-Perspective view

Top view of section 2-2

Top view of section 1-1

Rules for generating the skin I cover the construction with an envelope, for this purpose I divide the construction into horizontal slices /or floors/. The volumes that are adjacent are summarized in one contour and the envelope recedes 12.5 meters from this outline. The distance of 12.5 meters is consistent with the loadbearing capacity of the structure and fire safety requirements to ensure a minimal evacuation route.

Construction and partial skin over selected segments

Sculpting Shapes

1. The site- on busy road and in close proximity to the city coastal garden and the sea.

3. Determining the optimal points of view using a parametric program. The main principal is to maximize views.

5. Sculpting the shape around the tree-like core structure. Design of a threestorey podium and a roof garden for public access .Raising the main structure high above the ground allows see-through spaces in between and maximizes light exposure of roof garden.

2. Initial stage: vertical extruded tower as the neighboring residential buildings with maximum floor size - feels congested and doesn’t maximize views. Needs a cut-through the ground levels because of the existing technical infrastructure.

4. Forming of communication and structural core with calculation of the real loads applied along curvilinear / offset/ trajectories around the cores.

6. The final shape and scale of the tower is designed on the principle of contrast with the neighboring building environment.

Va r i a t i o n s 2

ia ar

tio n s

6 Rules for generating Variations The considered example is the simplest possible with a minimum amount of loads and trajectories of loads. To generate variants, 3 point loads are used, which move along selected boundary lines in the phase space. Possible varieties of structural nuclei are obtained, which lead to different variants of the building skin and the interior spaces. In order to choose the right structure, it is necessary to optimize it. The possible variants in the phase space are infinite number depending on the amount of point loads and the boundary lines of the attractors.

Loads

Limit cycle

Limit cycle Loads

Loads

Note: These variations are from a stop motion video available in the appendix short videos and frames.

Limit cycle

Optimization of Communication cores

Load positioning

Generated structures

Centeral lines of the generated structures

Axis optimization

Chaos theory. Butterfly effect In Chaos theory, the Butterfly effect is the idea that a very small change in an initial condition can create a significantly different outcome in the system as a whole.

Optimized Structure

Formation of spaces

Communication cores

Single-layer structure

2 layered lettuce structure

3-dimensional structure study After analysis of different variations of three and onedimensional trusses for the connection from the podium to the rest of the tower, I concluded that one layer of trusses with strategic connections to the cores is much more optimal solution.

Ground floor-Perspective View Lobby Main entrance

Communication core Museum WC

Museum

External ramp

Staff Lobby

Transverse passage Coffee WC Museum Staff

Coffee shop Coffee Staff

Main Staircase

Podium-Axonometric view

Stu dy n u

Second floor roof

Second floor

First floor

Ground floor

Physical model

Perspective sections & East Elevation +115.60 +111.60 +107.60 +103.60 +99.60 +95.60 +91.60 +87.60 +83.60 +79.60 +75.60 +71.60 +67.60 +63.60 +59.60 +55.60 +51.60 +47.60 +43.60 +39.60 +35.60 +31.60 +27.60 +23.60

+13.00 +9.00 +5.00 ±0.00

20m

Section Detile Relax Lobby Event hall

Communication core

Offices

Existing underground engineering infrastructure

Museum

Terrace Transverse passage

Amphitheater

20m

Perspective views

Throu gh

Perspective view

Throu gh

Structure perspective

Cardiff THE GRANDSTAND

(2019-20) A SPACE FOR THE COMMUNITY

The main idea of the design is that buildings step directly on the relatively flat site and the space of the Grandstand is around and in-between different pavilions. This avoids any need for stairs and ramps and eases the building accessibility to all its visitors. The Grandstands are designed as an integral part of the building. Several “pockets” containing grandstands are situated between buildings, thus easing communication between different age groups and giving the option to gather separately or together. The lack of stairs eases communication between areas and creates fluent spaces.

MArch 2016 2017 2018 2019 2020 2021

Phase 3 to Phase 4-Key aspects

Stage 3 group work

Stage 4 individual work

This proposal includes the grandstand presented as a place for social networking and situated in the southern part of the building. It also allows different groups of neighbourhood residents (children, parents waiting for them or elderly people) to gather at different places of the building depending on the function of spaces. The building is divided into separate pavilions thus creating specific “pockets” for communication and providing more optimal transverse ventilation through the building. Roof eaves are increased in size from the west and reduced from the east easing the flow of natural light to the interior.

Roof outline Gathering spaces

Grandstands step 3 Grandstands step 2 Grandstands step 1

Phase 4 individual design-Ground Floor Plan

A 1

2 4

Covered outdoor playground

Bike repair workshop

Multifunctional space

Plant room

Kitchen

Dining Room

Food Storage

Kitchenette

Cloakroom

Wet area/ Cleaner

Storage

Playing Room

Sport Hall

Covered outdoor pickup zone

Covered outdoor space

Dressing Room+ Shower rooms

Mental health / Privet spaces

3 5

8 9

2 9

Module 1

-244 m2

Child care center Changing rooms Bike shop

130 m2 61 m2 53 m2

Module 2

-400 m2

Caffe Sports Hall Quiet spaces

128 m2 208 m2 64 m2

Total build area 644 m2

B 10

12 11

1 2

Phase 4 individual design-Elevation and section

Facade South-West

Section A-A

0 1 2 3 4 5

Phase 4 individual design-Perspective views

The Grandstand space-exterior view

Mental health Centre /’’Pocket’’ spaces-exterior view

Nursery-exterior view

Nursery-interior view

Phase 4 individual designAxonometric view - layout and construction Fragment 3-Multifunctional hall

Fragment 1-Nursery

Use of Glulam beam and steel rod trusses because of the large spans of the multifunctional hall.

Steel H column and beam profiles combined with Glulam transverse beams typical construction fragment.

Fragment 2-The Grandstand Light roof construction supported by V-shaped Glulam columns with deep overhanging (eaves). The structural elements are covered by a wooden panelled suspended ceiling.

Fragment 1

Fragment 3

Construction -axonometric view Fragment 2

Phase 4 Construction Roof details

Detail 4

Detail 3

Detail 3,5

Detail 4

Fragment 4

V-shape Glulam columns are being used as external supports for the extended eaves. Semi50mm Dia.Solid spherical steel joints are foreseen to adjust their Steel Pin inclination. The columns are connected to both the reinforced concrete foundations and the eave beams using metal plates and bolt connections. The V-shape of the doubled columns is intentionally chosen to minimize the number of visible supports 73mm Dia. and is inspired by the Trelai park environment in Steel Inner Pipe which the building is located. Fragment position Extended eave zones

Base Plate

168mm Dia. Steel Pipe Welded and Lagged into Glulam Column 80mm Dia. Steel Outer Pipe Threaded Cap

168mm Dia. Steel Pipe welded to Base Plate

Detail 5

Phase 4 Construction Roof details Detail 2 A mixed (hybrid) construction is being used as a structural system: - Vertical – consisting of H steel columns - Horizontal - of H steel beams in combination with transverse Glulam oak beams. The transverse roof beams in the multifunctional hall can be separated into 2 parts - visible (which can be seen in the interior) and hidden (above a suspended ceiling of wooden panelling). The hidden part of the beam steps on H steel longitudinal beam and is connected to it using a steel plate and bolt connections. The Glulam eaves are used as a continuation of the main beams and are connected with steel plates and bolts. The use of Glulam-metal trusses with steel bars and tensioners is foreseen in the multifunctional hall because of the large-span distances between columns and to spare height of the transverse beams. The facade elements - the walls of Cross-laminated timber and the window frames of the double glazed facades are situated in front of the main metal structure to avoid thermal bridges. These elements are connected to the basic metal structure by metal brackets and adjusting screws, fixing their precise position.

Detail 1

Multifunctional hall

scale 1:20 Glulam oak beam Oak rafter

Roof anodized aluminium sheets Hydrophobic plywood

5°

Oak rafter Glulam oak beam

5°

Roof anodized aluminium sheets Hydrophobic plywood

Gutter Aquapanel with built-in thermal insulation interrupting the thermal bridge Window frame-fixing brackets AI eave closing profile

Thermal insulation with integral vapour membrane

H steel column 200/200 mm

Suspended ceiling/soffit/-oak panels

Double glazed window

Steel truss

Detail 1

scale 1:5

Thermal insulation with integral vapour membrane Suspended ceiling-oak panels Steel truss H steel column 200/200 mm

H steel column 200/200 mm Double glazed window

Detail 2

scale 1:5

London OPEN ARCHITECTURE

(2018-19) OPEN ARCHITECTURE

During my preliminary study of Stratford, I was impressed by the fact that this is a multinational neighborhood that is constantly growing, populated with people from different generations and with quick and easy communication to the London City center. Property prices are currently relatively affordable and have a steady upward trend. These data have directed me to the target group of the project - young urban professionals (20-35 years of age), attracted to urban life and at the beginning of their career. Another trend that impressed me is Co-working.Working together allows temporary hiring of workplaces, offices or individual working spaces - for young professionals, communications, mobility and low cost are of vital importance. They benefit from all the conveniences of the classic office and at the same time they pay a much more affordable price.

BSc 2016 2017 2018 2019 2020 2021

Giorgio Talocci

OPEN ARCHITECTURE

INITIAL IDEA - FIRST STAGE

SECOND STAGE

THIRD STAGE

FOURTH STAGE PLAN - GROUND FLOOR ±0.00 FIFTH STAGE - FINAL RESULT

Interior 3D views

SECTION A-A

Parks (roundabout)

Palygrounds

General Layout

Cardiff COHOUSING CARDIFF

(2017-18) COHOUSING CARDIFF

The target group of the project is people of different ages who live together. I was inspired by the rhythm of the facades of the surrounding old buildings and I decided to Interpret them in a wall with openings and windows to symbolize the once peaceful life and using glass in a concrete frame, reminiscent of a forest, on the top floor as a symbol of youth. The building main idea illustrates the conjunction and coexistence of generations. The forms do not derive only from the philosophy of life but are also related to the function. The public activities are oriented towards the busy main street, but an intimate living space has been designed in close proximity.

BSc 2016 2017 2018 2019 2020 2021

Rhian Thomas

Burgas A SEA HIDEAWAY In some of his projects the architect Ralph Erskine designed a tall “walled” dwelling structure around the city as a wind and cold shelter thus clearly dividing the space into two zones - in and out.

(2016-17) A SEA HIDEAWAY

Inspired by the creative spirit of my client and his love for nature I designed a sea hideaway partially isolated from the noisy shoreline and utterly opened to the ever-changing beauty of the surrounding marine landscapes.

BSc 2016 2017 2018 2019 2020 2021