STAGED CONSTRUCTION SOIL STAGED CONSTRUCTION EXAMPLE ONE BUILDING

STAGED CONSTRUCTION SOIL STAGED CONSTRUCTION EXAMPLE ONE BUILDING 3 D LAG UNITS m: kg: s: Pa: N Ground Level (z=0 m) Foundation slab

CONSTRUCTION STAGES KEYWORDS NB Do not use RIGID MATERIALS

Geometry

Geometry Ground Level (z=0 m) Foundation slab

Geometry

Soil Building

Ground Level (z=0 m)

Ground Level (z=0 m) Foundation slab

Ground Level (z=0 m) Foundation slab

MASS OF PARTS Foundation

DAMPING

Ground Level (z=0 m) Part ID’s Columns above ground level Part ID’s Columns below ground level

Ground Level (z=0 m) Part ID’s Floor loading above ground level Part ID’s Floor loading below ground level

Ground Level (z=0 m) Part ID’s Floors above ground level Part ID’s Floors below ground level

Ground Level (z=0 m) Part ID’s Glass wall above ground level Part ID’s Concrete wall below ground level

Ground Level (z=0 m)

INITIAL STRESSES IN THE SOIL

Z STRESS IN SOIL PRIOR TO EXCAVATION Z STRESS IN SOIL HAND CALCULATIONS Solid element size 2 m X 2 m. Calculations at center of the element Z = 1 m z stress = 2140. 0*9. 8*1 = 2. 097 e+04 Pa Z = 9 m z stress = 2140. 0*9. 8*9 = 18. 88 e+04 Pa Z = 49 m z stress = 2140. 0*9. 8*49 = 102. 8 e+04 Pa

CONSTRUCTION SEQUENCES Start time Total number of stages Construction Stage ID End time Ramp Time Part Add at Construction Stage Remove at Construction Stage

Add soil 4 Remove soil 41 Remove soil 42 Remove soil 43 Remove soil 44 Remove soil 45 CONSTRUCTION SEQUENCES AND PARTS

Add basement wall 241 Add basement wall 242 Add basement wall 243 Add basement wall 244 Add foundation 344 Add basement column 444

Add basement floor 343 Add basement column 443 Add basement floor 342 Add basement column 442 Add basement floor 341 Add basement column 441 Add ground floor 340

Add level 1 column 1410 Add level 1 floor 1310 Add level 2 column 1420 Add level 2 floor 1320 Add level 3 column 1430 Add level 3 floor 1330 Add level 4 column 1440 Add level 4 floor 1340

Add level 5 column 1450 Add level 5 floor 1350 Add level 6 column 1460 Add level 6 floor 1360 Add level 7 column 1470 Add level 7 floor 1370 Add level 8 column 1480 Add level 8 floor 1380 Add level 9 column 1490 Add level 9 floor 1390

Add level 1 glass wall 1600 Add level 2 glass wall 1610 Add level 3 glass wall 1620 Add level 4 glass wall 1630 Add level 5 glass wall 1640 Add level 6 glass wall 1650 Add level 7 glass wall 1660 Add level 8 glass wall 1670 Add level 9 glass wall 1680 Add basement loading foundation 1700 Add floor loading 1710

Remove soil 41 Add soil 4 Remove soil 43 Add basement wall 242 Remove soil 42 Add basement wall 243 Add basement wall 241 Remove soil 44 Add basement wall 244 Remove soil 45

Add soil 4 Remove soil 41 STAGE 1 Stress in soil decreases due to removal of soil Removal of soil PART#41 Ramping Time Settling Time Final stress in soil Initial pre stress in soil

Remove soil 41 Add basement wall 241 STAGE 2 Stress in soil increases due to addition of basement wall Stress in soil Ramping Time Addition of wall PART#241 Settling Time Final stress in soil

Remove soil 41 Add soil 4 Removal of soil PART#41 Ramping Time Settling Time Add basement wall 241 Addition of wall PART#241 Ramping Time Settling Time STAGES 1 and 2 STAGE 1 STAGE 2

AT t = 0 s Add soil 4 Z STRESS IN SOIL EID 12478 is at base level Stage 1 Remove soil 41 Stage 2 Stage 3 Stage 4 Stage 5 Stage 6 Stage 7 Add basement wall 243 Add basement wall 242 Add basement wall 241 Remove soil 43 Remove soil 44 Remove soil 42 Stage 8 Stage 9 Add basement wall 244 Remove soil 45

Remove soil 41 Remove soil 42 Remove soil 43 Z STRESS IN SOIL AFTER EXCAVATION COMPLETED EID 12459 is new surface at ground level Remove soil 44 Remove soil 45 Slab Foundation Part#344 ADDED Remove soil 41 Stage 2 Remove soil 42 Stage 3 Stage 4 Remove soil 43 Stage 5 Stage 6 Remove soil 44 Stage 7 Stage 8 Remove soil 45 Stage 9 Stage 10

Remove soil 41 Remove soil 42 Remove soil 43 Remove soil 44 Remove soil 45 Z STRESS IN SOIL AFTER EXCAVATION COMPLETED AND FOUNDATION ADDED EID 12459 is new surface at ground level Slab Foundation Part#344 ADDED Ramp Time STAGE 10 Settle Time

Z STRESS IN SOIL AND STRUCTURE Under foundation At base level

Z STRESS IN SOIL DUE TO TOTAL STRUCTURE

Z STRESS IN SOIL (EID 12459) DUE TO TOTAL STRUCTURE (under foundation)

Z STRESS IN SOIL (EID 12478) DUE TO TOTAL STRUCTURE (at base level)

Z STRESS IN SOIL (EID=12478) AND STRUCTURE Under foundation Stage 9 excavation completed Stage 10 foundation added Soil element at base level At base level Soil element under foundation

Stage ID Under Foundation(eid: 12459) At Base Level(eid: 12478) LS_DYNA -4. 46 e+03 CALCULATION ? LS_DYNA -9. 76 e+05 CALCULATION ? End of Stage 10 -9. 23 e+04 (after excavation + basement side walls + foundation) -11. 202 e+04 -1. 00 e+06 ? End of Stage 47 (after total building) ? -1. 03 e+06 -1. 05 e+06 Z STRESS (Pa) IN SOIL End of Stage 9 (after excavation + basement side walls) -1. 5 e+05 Data: Soil solid element dimensions 2 m X 2 m Mass Building is 1. 334 e+07 kg Mass of Basement Walls is 7. 7895 e+05 kg Mass Foundation Part#344 is 5. 54535 e+06 kg Mass of Basement Walls and Foundation is (7. 7895 e+05+5. 54535 e+06) = 63. 243 e+05 kg Mass of Soil under Foundation is 2140. 0*553. 28*40. 0 = 47. 36 e+06 kg Mass of Soil under Foundation is 2140. 0*553. 28*39. 0 = 46. 18 e+06 kg Foot print (i. e. foundation area) of Building is 553. 28 m^2 Pressure from Foundation is 5. 54535 e+06*9. 8/553. 28 = 9. 8226 e+04 Pa Pressure from Foundation and Basement Walls is (5. 54535 e+06+0. 7790 e+06)*9. 8/553. 28 = 11. 202 e+04 Pa Pressure from Mass Building is 1. 334 e+07*9. 8/553. 28 = 2. 363 e+05 Pa Pressure from Soil at Base Level is 47. 36 e+06*9. 8/553. 28 = 8. 389 e+05 Pa Pressure from Soil at Base Level is 46. 18 e+06*9. 8/553. 28 = 8. 18 e+05 Pa Pressure from Mass Building and Soil under Foundation at Base Level is (8. 389 e+05 +2. 363 e+05) = 1. 0752 e+06 Pa Pressure from Mass Building and Soil under Foundation at Base Level is (8. 18 e+05 +2. 363 e+05) = 1. 054 e+06 Pa