Олексій

Alex Chystiak
Structural engineer
Date of birth: 7 June 1989 Email: [відкрити контакти](див. вище в блоці «контактна інформація»)
Odesa, Ukraine
Phone: [відкрити контакти](див. вище в блоці «контактна інформація»)

Work experience__________
Structural engineer Feb 2017 - present (~7 years)
Construction company «Gefest» Odesa, Ukraine
-structural analysis and design of reinforced concrete structures of high-rise civil buildings
Structural engineer Sept 2016 – Jan 2017 (4 months)
Construction company «Adept-group» Odesa, Ukraine.
-structural analysis and design of steel structures
Draftsman 2013 – 2016 (3 years)
Construction company «Megaline» Odesa, Ukraine.
- Structural drafting

Education__________
1. Sept 2014 - Dec 2018 (Postgraduate second higher education).
Odessa State Academy of Civil Engineering and Architecture,
Professional qualification: Specialist of Industrial and civil engineering.
(NZQA evaluated the Master's degree at level 9).
2. Sept 2006 - June 2011
Odessa National Maritime University,
Faculty of Water Transport and Offshore Structures.
Professional qualification: Hydrotechnical engineer (Specialist degree).

Skills__________
- Design and structural analysis of building structures taking into account the effects of
seismic action: reinforced concrete pile foundations, shallow foundations, strip footings,
slab foundations, tower crane foundations, pile caps, monolithic and prefabricated
columns, walls, pylons, diaphragms, rigidity cores, floor slabs, flights of stairs, etc.
- Strengthening and rehabilitation reinforced concrete structures.
- Design of concrete, steel, timber, plastic, composite structures.
- Proficiency in engineering programs: AutoCAD, SCAD, SAP2000 and other programs
using the finite element method, MS Office: Word, Excel, PowerPoint etc.
- Construction observation.

Reference contact persons_ __________
1. Mrs. Anna Luzhanskaya, Technical Director “Gefest” (previous employment),
ph: [відкрити контакти](див. вище в блоці «контактна інформація»), email: [відкрити контакти](див. вище в блоці «контактна інформація»)

1
Relevant experience__________
«Gefest» (Feb 2017 – present)
- 26-storey monolithic frame residential building called “Rhodes”, consisting of 4
sections with a 3-storey underground parking attached along the perimeter, located in
Odessa, at 1 Genuezskaya (link for the completed project on the developer’s website
https://gefest.ua/en/objects/rodos).
Project team: Gefest (Architect), Gefest (Structural), Center for Engineering and Design
Research (Geotechnical), SKIF SECURITY (Fire), Leopard Group (Ventilation),
ODESAGROGAZ (gas supply), consent ltd (External water supply and sewer drainage),
Politekhelektro (power supply), CONSTRUCTION COMPANY "PROFI" (electrical)
My responsibilities:
- Frame design and modeling using computer programs using the finite element method
- Structural analysis
- Bored pile design and pile fields design
- Foundation slab design
- Floor slab design
- Design of vertical reinforced concrete structures (walls, columns, cores)
- Beam design
- Shallow foundations design
- Сrane foundation design
- Seismic design
- Design of staircases
- Design of prefabricated concrete blocks foundation
- Construction observations
Design features:
The construction site was located on semi-rocky soils of low strength limestone,
which led to the choice of bored piles. And also under two sections, there were old
underground horizontal limestone mines, which were filled with sand using the injection
method.
13-story multiapartment residential complex "Itaka" with a one-story attached
underground parking, located in Odessa at 1 Chubaevskaya
(link for the completed project on a developer’s website https://gefest.ua/en/objects/itaka)
Project team: Gefest (Architect), Gefest (Structural), Center for Engineering and Design
Research (Geotechnical), ProSystem (Fire), ProSystem (Ventilation), inFox (External
water supply and sewer drainage), ProSystem (power supply), ProSystem (electrical)
My responsibilities:
- Frame design and modeling using computer programs using the finite element method
- Structural analysis
- Square driven pile design and pile fields design
- Foundation slab design
- Floor slab design
- Design of vertical reinforced concrete structures (walls, columns, cores)
- Shallow foundations design
- Сrane foundation design
- Seismic design
- Design of staircases
- Construction observations

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Design features:
The peculiarity of this object for me was the use of composite piles of two reinforced
concrete parts for the foundation of a tower crane, with a total length of 16 meters. Due
to the fact that the foundation of the crane, for technological reasons, was higher than
the level of the pit, the maximum length of the pile of 15 meters, which the manufacturer
was able to produce, was not enough. Therefore, I designed the crane foundation on
composite reinforced concrete piles with a welded joint and special joint waterproofing.
- 26-story two-section office center “Platon” with an attached one-story
underground parking located in Odessa at 1/1 Genuezskaya
(link for the completed project on a developer’s w.s. https://gefest.ua/en/objects/platon)
Project team: Gefest (Architect), Gefest (Structural), Center for Engineering and Design
Research (Geotechnical), SKIF SECURITY (Fire), Leopard Group (Ventilation),
ODESAGROGAZ (gas supply), consent ltd (External water supply and sewer drainage),
Politekhelektro (power supply), ProSystem (electrical)
My responsibilities:
- Frame design and modeling using computer programs using the finite element method
- Structural analysis
- Square driven pile design and pile fields design
- Foundation slab design
- Floor slab design
- Design of vertical reinforced concrete structures (walls, columns, cores)
- Beam design
- Shallow foundations design
- Сrane foundation design
- Seismic design
- Design of staircases
- Construction observations
Design features:
A feature of this project is low-strength subsidence soils located in the upper layer of
the soil. Which had a negative impact on the attached one-story parking lots along the
perimeter of the building; it was not cost-effective to place them on pile foundations. I
developed a solid slab foundation, developed downwards under the columns and walls.
This significantly reduced the subsidence effect.
- Also, during the work in the specified location, many small projects were carried out
to reconstruct and strengthen reinforced concrete structures (walls, floor slabs,
diaphragms, etc.) using anchoring of reinforcing bars with chemical anchors, self-
expanding bolts, and connecting working reinforcement using electric welding. For
reinforcement, steel profiles were used in the form of angles, channels, I-beams, plates
and other things.
«Adept-group» (Sept 2016 – Jan 2017)
My responsibilities:
- Frame design and modeling using computer programs using the finite element method
- Structural analysis
- Design of a steel elevator tower
- Design of steel conveyor gallery
- Design of steel gallery on three free-standing supports for technological equipment
- Shallow foundations design

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Project examples__________

Bored pile BSm-1 1-1
(formwork and reinforcement) 149
1

80
∅3
1 1

850
2 0
-12,450
ш.200 ∅50
50

pile top mark
1

150
4

1
1800

А
3 3 2-2 1 1

149 3 1 1

0
60 190 190 60

∅38
4 4
1 1

2 0
30х200=6000

ш.200 ∅50
2000
(поз.2)

1 10 10 5
6150

(8 шт.) 5 3
1

3 3
2 2
3 1

5
4

1 1
1800

1 1 1 3
60 190 190 60
3 3

-18,600 (+13,450 в БСВ)
400
100

4 pile tip mark

∅500

А List of parts
1 1 Sketch
2 weld К3-Рр 9 0 0
ш.200 14 ∅4
50 50

2

3
40
195

4 107
107

3 50 95 100 95 50
390
weld Н1-Рш
195

Шов С8
ГОСТ 5264-80 60
∅3
4 ∅348
weld С23-Рэ

The dimensions of bent rods are indicated on the outer edges
The dimensions of the clamps are indicated on the inner edges

40

Example of a reinforced concrete bored pile

4
 Geological section along line I-I
Scale: vertical 1:400, horizontal 1:100 Foundation slab
0.000 (+45.820 в БСВ) attached parking -3.650
46.00 top of the pile before felling
-3.950 (+41.870 в БСВ)
top of the pile before felling

1 -4.050
44.00 1.00 44.40 top of the pile before felling
Foundation slab
residential building -4.350
top of the pile after felling
2

100
-3,400

50
42.00 -4,000

1000
3.50 41.90 -4,400

50
4.10 41.30 3 3.50 -4,100
-4,500 bottom of the pit
5.00 4.50

100
40.00 5.00 4.30
40.40 Preparation of 40.15 40.30
concrete class.
С8/10(B10)
38.00 4
4 Pile С150-35.11 Pile С150-35.11
Series 1.011.1-10 Series 1.011.1-10
(piles №1...152, 166...286, (piles №153...165, 287...292,
36.00 9.30 36.10 293...384,387...553. look let. 3) 385, 386. look let. 3)

10.00 35.40 5 9.80 35.35 9.70

15000
15000
34.00 5
11.50 33.90 11.50 33.65
5 5' 11.40
12.50 32.90 12.80 5'
12.50 32.65 13.00 12.40
32.00 32.60
32.15
6
14.60 30.80 6
30.00
15.50 29.90 7' 15.40 29.75 15.30
16.30 28.85 7'
28.00 16.50

7 -18.650
26.00 7 -19.050
pile tip
pile tip

Example of the location of a prismatic pile on a geological section
5
 50 150 265
2050 1200 1150 1200 300 1200 1135 1025 1200 1200 975 225

386 388

1525 900

1425 900
378 380 382
Section 9. Layout of the pile field 384
50 1150 1100 1100 1100 1100 1100 1100 1100 1100 550550 950 150
379 381 383 385 387

350

350

350
600

346 347 348 349 350 351 352 353 370 371 372 373 374 375 376

350
366 367 368 369

1100 1025
355 357 358 360 362 364

1100 925
354 356 359 361 363 365 336 335 334 333
Г 302 303 304 1 305
1100 500

1100 750

1100 750

1100 750

1100 750
75
175
345 344 343 332 331 330 329 328 327 326
342 341 340 339 338 337 315 316 317 318
301 299 298 2 297
306 307 308 319 320 321 322 323 324 325

1125
1100
1100

309 310 311 312 313 314 287 286 285 284

1100

1100

1100

1100
300 6 7 3 8 9
296 295 294 283 282 281 280 279 278 277

1125
1100
1100

293 292 291 290 289 288 266 267 268 269

1100

1100

1100

1100
254 255 256 4 257 258 259 1825 270 271 272 273 274 275 276

1100

1650
260 261 262 263 264 265
9600

5 244

1100
2800

252 251 250 249

2550
253 248 1225 247 246 245

1125
1425

350
238 239

1100
piles for
231 232 233 234 235 236 237 243 242
testing №1

650 775
377
1100

1100
209 206

1100
229 230 216 215 214 240 241
207
800 1100

800 1100
226 225 224 223 222 221 220 219 218 217 213 212 211 203 202 201 200 199 198 197 196
228 227 195 194

1100
210 208 205 204
1100

1100

1100

1100

300
167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191
Б 165 166 192 193

1100
1100

1100

1100

1100
300
1100

1100
160 159 158 157 156 155 154 153 152 151 150 149 148 147 146 145 144 143 142 141 140 139 138 137 136
164 163 135 134
850 300 1100 1100 1100
50 1050 1100 1100 1100 1100 1150 1000 1100 1100 1100 1100 1100 50 1050 1100 1100 1100 1000 1150 1100 1100 1100 1100 1000 2400 950 150
1950

425
425 425 125 975 675 10
162 161

1200
1.2 piles for
1100

11
8500

120 121 122 123 124 125 130 131 testing №2 132 133
126 127 128 129

1200
1100

1100

1100

1100

1100
119 118 117 116 115 114 113 112 106 105 104 15 16 12 17 18 103 102
111 110 109 108 107

1200
1100

1100

1100

1100

1100
80 81 82 83 84 85 86 87 88 94 95 96 97 13 98 99 100 101
89 90 91 92 93
750 1100

750 1100

750 1100

750 1100

750 1100
500600 1200
79 78 77 76 75 74 73 72 71 58 57 56 55 14 54 53 52 51
70 69 68 67 …