Property condition survey for the Ewa Silo building located in the premises of the Port of Szczecin

1 PROJEKTOWANIE Badanie Konstrukcji i Obiektów M.Sc. Eng. Zdzisław Woźniak 71-118 Szczecin, ul. Kaliny 51/29 telephone number 603 583 702 Property condition survey for the Ewa Silo building located in the premises of the Port of Szczecin Customer: Zarząd Morskich Portów Szczecin i Świnoujście S.A. ul. Bytomska 7 70 603 Szczecin Author of the study: M.Sc. Eng. Zdzisław Woźniak Szczecin, March 14

2 CONTENT OF THE STUDY Contents 1 General data of the silo... 2 2 General technical data of the silo (historic data)... 4 3 Usable areas after dismantling of technological equipment... 6 4 Loading ramps... 11 5 Evaluation of the floor loads... 13 6 Technical condition of the property... 13 LIST OF FIGURES Fig.1. Eastern façade Fig.2. Western façade Fig.3. Southern façade Fig.5. Floor plan - storey IV (basement) Fig.6. Floor plan - storey III (basement) Fig.7. Floor plan - storey II (basement) Fig.8. Floor plan - storey I (basement) Fig.9. Floor plan - ground floor 0 Fig.10. Floor plan - storey I Fig.11. Floor plan storeys II - X Fig.12. Floor plan - storey XI (attic) Fig.13. Cross section

3 1 General data of the silo The Ewa Silo building is located in the port of Szczecin. It was built in the thirties of the last century. It is a stand-alone building consisting of three main parts: centre higher part with 17 storeys, which comprises the technological part with elements of vertical penetration, and the two end chambers with a height of 11 storeys, which contain the batteries of silos and floor storage spaces - fig. 1 and 2. The building has a basement on its entire area. In the part of the chambers from the southern side, there are three underground storeys below the level of the basement. The building dimensions on the blueprint: 138.55-135.40 x 29.40-27.00m. Height of the centre part is 60m and the silo parts are 40m high. Built-up area is 3,639.03m² and usable area is 145,870.30m². The building has a monolithic structure made of reinforced concrete. The floors and silo chambers are constructed on a grid of columns 4.0 x 4.0m. The building is situated on piles and wells. Photo 1: View of the eastern façade of the silo1

4 Photo 2: View of the western façade of the silo2 Photo 3: View of the southern façade of the silo3

5 From the southern side in the chamber part, there is a battery of silos with multi-row arrangement consisting of 15 x 6 = 90 rectangular chambers. Two chambers are divided into four parts by means of vertical walls and two chambers are divided into two parts. In the two chambers shaft the staircases were made. The battery has the transverse expansion joints every 6 rows. From the northern side the battery is composed of 6 x 7 = 42 chambers. Four chambers are divided into four parts by means of vertical walls and two chambers are divided into two parts. In one chamber shaft a staircase was made. Additionally, there is the possibility of storing grain on the circum-chamber floors. The dimensions of the centre chambers within the wall axes are equal to the dimensions of the grid of columns, ie. 4.0 x 4.0m, while the external dimensions are 4.0 x 5.4m, because the axes A and G of the exterior walls of the chambers are moved to the outside of the building in relation to the axis of the grid of columns by 1.40m. Both chamber parts are equipped with six gas chambers - two chambers 4.0 x 4.0m and four chambers 4.0 x 2.0m (labelled A-F). The chambers are approx. 30m high - 10 storeys. 2 General technical data of the silo (historic data) The silos were filled from the top, and emptied from the bottom. The material was loaded mechanically by means of upper belt conveyors, located on the silos floors photo 4 - XI storey (attic), which separated the material into individual chambers. Photo 4: Upper conveyor belts on the chamber floors4

6 Photo 5: Bottom outlets of the silos at the ground floor level - storey 05 Empting was done mechanically through bottom outlets located in the bottoms of the silos chambers at the ground floor level - photo 5 (storey 0). The material was received by belt conveyors located in the basement - photo 6 (storey -I) where it was fed through the holes in the ceiling of the ground floor. Photo 6: Bottom conveyor belts in the basement - storey -I6

Emptying of gas chambers was done on storey I. 7 Six trusses (telescopes) were attached to the western façade from the wharf's side, at the level of storey VI. Inside them there were placed the pipes for the transport of bulk materials using gravity. Suspension structures for the truss control ropes were mounted at the level of storey VIII. 3 Usable area after dismantling of technological equipment At the level of all the stories from I to X (at the height of the silo chambers) there are the circum-chamber floors - photo 7 and 8 provided for storage. Permissible load of these floors is 1600kg/m², while their height is 285cm. Photo 7: Circum-chamber floor, storey X7 The circum-chamber floors have a monolithic structure made of reinforced concrete with mushroom columns. Floor (of the attic) above storey X is a beam-and-slab floor. The outer walls of the silo chambers, along the axes A' and G', and 1' and 35', are cm thick, and insulated from the inside by means of porous concrete 8cm thick. Clear dimensions inside of the outer chamber are approx. 3.80 x 5.10m. The transverse wall at the connection with the outer wall is thickened with slants along a length of 800cm to the thickness of 36cm - 8cm on each side.

8 Photo 8: Circum-chamber floor, storey I8 Photo 9: Ground floor ceiling under the bottom outlets of silo chambers9

9 The ground floor ceiling is shown in the photos 9 and 10. The ground floor height at the bottom outlets is 440cm and 530cm in the areas without the bottom outlets. Permissible load of the ground floor ceiling is 1600kg/m² Photo 10: The ground floor ceiling in the areas without the bottom outlets10 The attic floor is shown in photo 11. The attic floor is not intended for storage of material on the floor. The openings to fill the silos are located here. The height of the attic is cm. Photo 11: The attic floor after the dismantling of conveyor belts11

10 Photo 12: The basement - storey -I12 In the basement - storey -I within the axes 7- and 21-35, there is flooring on the ground. Basement height is 230cm. Within the axes 1-7, there are three storeys -II, -III and-iv located below the level of the ground floor - photo. 13 intended as the shelters. Photo 13: The room below the level of storey -I, storeys -II, -III and-iv13

11 Above the storey XI, ie. the flat roof, there are 6 storeys XII to XVI, which are located in the technological shaft, photo 14 and 15. The technological devices are located there, which are currently dismantled. Photo 14: Technological equipment above storey XI14 Photo 15: Technological equipment above storey XI15

12 On the flat roof from the southern side of the technological shaft there is a steel structure - photo 16, enclosed with corrugated plate. The room is unused. Photo 16: Room structure mounted on the flat roof.16 4 Loading ramps There as loading ramps at the ground floor level - storey 0 on each side of the building. From the eastern and western side the ramps have a width of 265cm, while on the southern side they are 0cm wide and on the northern side they are 155cm wide. Permissible load of the ramps is 00kg/m²

13 Photo 17: Loading ramp on the eastern side17 Photo 18: Loading ramp on the western side.18

14 5 Evaluation of the floor loads During the review of the technical condition of the floors and ceilings no cracking or damages of concrete were found. There were also no signs of corrosion of reinforcing steel. Hence it is assumed that the permissible loads on the floors are properly determined and for all floors where the grain is stored are equal to 1600kg/m², while for the ramps they are equal to 00kg/m². This load information is displayed in the material storage locations. In order to evaluate the loads of the silos, the calculations made by the author of this study in 04 and 06 were used. It was established that the concrete in the chamber walls has diverse strength and is of poor quality. Due to the large scatter of strength data and a large heterogeneity, the class of concrete was specified as B 15. The load on the connection between the transverse wall and the outer wall of the silos is too low. During the periodic inspections it should be checked if the transverse wall is not detaching from the outer wall of the silos. 6 Technical condition of the property During the many years of operation of the chambers, the surface layer of the walls became worn out, and the concrete structure is degenerating. The grains are forced in the concrete destroying its structure in areas where the concrete has poor quality. With inadequate casing of bars, the reinforcing steel is uncovered. The technical condition of silo chambers is acceptable. Systematic inspections of chamber interior are needed. The technical condition of the columns should be considered as very good. There are local defects of concrete and corrosion of reinforcing steel. The technical condition of the floors is very good. No damage was found here to have an impact on the safety of use.

61m (silos) 27m (silos) Underground storeys Figure 1. Eastern façade

Underground storeys truss numbers Fig. 2. Western façade

Fig. 3. Southern façade

60 160 50 stairs EWA Silo in the port of Szczecin Fig. 5. Floor plan, storey -IV (basement) Prepared by: M.Sc. Eng. Z Woźniak Szczecin March 14 Scale 1:0

1 2 3 4 5 6 7 A 50 B C D E 50 210 0 2 2260 F G 50 60 160 50 60 stairs EWA Silo in the port of Szczecin Fig. 6. Floor plan, storey -III (basement) Prepared by: M.Sc. Eng. Z Woźniak Szczecin March 14 Scale 1:0

1 2 3 4 5 6 7 A 52 B C D E 50 210 2 2260 160 50 F G 50 60 stairs EWA Silo in the port of Szczecin Fig. 7. Floor plan, storey -II (basement) Prepared by: M.Sc. Eng. Z Woźniak Szczecin March 14 Scale 1:0

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 21 22 23 24 26 27 28 29 30 31 32 33 34 35 415 445 0 795 145 350 A B 170 170 C D 40 170 1500 E F 40 50 40 315 295 60 1500 2840 floor level -0 cm Technological shaft floor level - cm 54 1500 110 80 115 80 700 80 65 0 4875 301 102 G stairs lift 40 40 170 40 40 40 29 40 170 EWA Silo in the port of Szczecin Fig. 8. Floor plan, storey -I (basement) Prepared by: M.Sc. Eng. Z Woźniak Szczecin March 14 Scale 1:0

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 21 22 23 24 26 27 28 29 30 31 32 33 34 35 415 445 0 795 145 350 A B C D E F G 90 141 123 108 93 75 158 157 140 122 107 92 74 156 139 121 106 91 73 155 138 1 105 90 72 154 137 119 104 89 71 90 2310 26 90 153 152 136 134 135 133 118 103 88 86 87 85 70 69 132 117 102 84 68 151 149 148 150 131 130 90 310 90 310 90 90 310 90 310 90 116 115 101 7315 83 82 66 67 147 129 114 99 81 65 146 128 113 98 80 64 office space 145 144 127 126 112 111 97 96 79 78 63 62 ramp ramp 143 1 110 95 77 61 142 124 109 94 76 60 26 1802 215 90 310 90 210 90 155 710 440 310 90 310 90 40 45 Technological shaft 719 26 lift ramp ramp 90 310 90 59 58 57 56 49 47 45 43 48 46 44 42 2310 90 55 54 53 52 41 40 39 38 36 35 34 33 32 31 30 29 28 4710 27 26 24 23 22 18 16 21 19 17 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 26 90 50 51 37 ramp 265 2490 265 0 13540 155 EWA Silo in the port of Szczecin Fig. 9. Floor plan - ground floor 0 Prepared by: M.Sc. Eng. Z Woźniak Szczecin March 14 Scale 1:0

1' 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 21 22 23 24 26 27 28 29 30 31 32 33 34 35' 445 415 445 0 795 145 350 445 A' B C D E F G' 550 550 30 141 123 108 93 75 158 405 157 156 140 139 122 121 107 106 92 91 74 73 155 154 153 152 150 138 137 136 134 132 131 130 129 128 135 133 88 86 90 89 84 83 82 81 80 87 85 72 71 70 69 68 151 149 148 147 146 1 119 118 117 116 115 114 113 105 104 103 102 101 99 98 67 66 65 64 30 510 510 30 145 127 112 97 79 63 144 126 111 96 78 62 143 1 110 95 77 B 1 109 C 1 D 1 94 E 1 76 F 1 2650 80 3 80 22 22 1290 750 2490 Technological shaft 75 3 75 2650 22 F 18 16 21 19 17 15 59 58 57 56 55 54 53 49 47 45 43 41 40 39 48 46 44 42 36 35 34 33 32 29 28 27 26 1260 61 60 142 A 1 124 80 3 3 3 80 3 80 2 80 160 l if t A 127 75 275 75 19 B C D E 3 75 75 3 75 3 75 WC 9 8 7 6 5 4 3 30 510 510 30 14 13 12 52 38 31 24 11 2 51 50 37 30 23 10 405 1 30 2700 13540 EWA Silo in the port of Szczecin Fig. 10. Floor plan, storey +I Prepared by: M.Sc. Eng. Z Woźniak Szczecin March 14 Scale 1:0

1' 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 21 22 23 24 26 27 28 29 30 31 32 33 34 35' 445 415 445 0 795 145 350 445 A' 30 30 B C D E F G' 550 550 30 141 123 108 93 75 158 405 157 140 122 107 92 74 156 139 121 106 91 73 155 154 153 152 150 151 138 137 136 134 132 131 130 129 128 135 133 1 119 118 117 116 115 114 113 112 111 110 105 104 90 89 72 71 70 69 68 67 149 148 147 146 103 102 101 99 98 97 96 95 88 86 84 83 82 81 80 87 85 66 65 64 30 510 145 144 143 127 126 1 79 78 77 510 63 62 61 142 124 109 94 76 60 A 1 B 1 C 1 D 1 E 1 F 1 2650 1 1 1295 903 22 22 750 Technological shaft lift A B C D E F 2650 2490 1990 59 58 57 56 49 47 45 43 48 46 44 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 22 18 16 21 19 17 15 9 8 7 6 55 54 53 14 13 12 510 24 405 510 30 52 23 11 10 5 4 3 2 1 50 2700 1 1 51 30 13540 EWA Silo in the port of Szczecin Fig. 11. Floor plan, storeys +II to +X Prepared by: M.Sc. Eng. Z Woźniak Szczecin March 14 Scale 1:0

1' 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 21 22 23 24 26 27 28 29 30 31 32 33 34 35 445 415 445 0 795 145 350 445 A 158 157 156 155 154 153 152 150 151 149 148 147 146 145 144 143 142 365 59 58 57 56 55 54 53 52 51 50 B C D E F 141 123 108 408 93 140 122 107 375 92 139 121 106 375 91 138 1 105 90 137 119 104 89 136 134 135 133 118 103 88 86 87 85 132 117 102 84 131 116 101 83 130 115 82 7 129 114 99 81 128 113 98 80 2415 127 112 97 79 126 111 96 78 775 1 110 95 77 124 375 109 94 76 A 1 375 B 1 C 1 D 1 E 1 F 1 35 365 365 35 35 35 35 365 365 365 Technological shaft B C D E F 775 775 775 49 47 45 43 41 40 39 38 37 375 375 408 48 46 44 42 36 35 34 33 32 31 30 29 28 27 26 24 23 22 18 16 14 13 12 11 10 21 19 17 15 2465 2700 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 9 8 7 6 5 4 3 2 1 G lift 35 265 35 187 22 750 22 A 132 3 375 375 2415 5315 375 775 775 13540 EWA Silo in the port of Szczecin Fig. 12. Floor plan, storey +XI (attic) Prepared by: M.Sc. Eng. Z Woźniak Szczecin March 14 Scale 1:0

330 2415 XI 330 2415 XI 2700 285 285 285 285 285 285 285 285 285 285 X IX VIII VII VI V IV III II 2650 I 440 2440 0 530 2440 0 40 230 2840 40 -I 40 230 2840 40 -I 260 2 -II 280 2 -III G F E D C B A 280 2 -IV EWA Silo in the port of Szczecin Fig. 13. Cross sections G F E D C B A Prepared by: M.Sc. Eng. Z Woźniak Szczecin March 14 Scale 1:0