Fundamentowanie - instrukcje projektowe w jezyku angielskim , studia stacjonarne I stopnia

Instruction for Foundation Project No 1 Design a spot footing of storage hall. Design a spot footing of storage hall shown in figure. Dimension of column cross-section are: ax = m, ay = .. m. characteristics values of load acting on a spot footing are placed in Table 1, but the soil conditions in Table 2.

Type of load Characteristic value of load

Nn Tn Mn [kN] [kN] [kNm]

Dead-weight, Gk

Snow load, Qk1

Wind load from left, Qk2

Wind load from right, Qk3

Exceptional load, Fa

Thickness of layer [m]

Type of soil ID/IL

I. Specifications according to Polish Standard PN-90/B-03000 II. Structural analysis 1. Geotechnical parameters according to Polish Standard PN-81/B-03020 ( for ultimate limit state calculations)

Thickness of layer

[m] Type of soil

Geotechnical parameter ID IL

[t/m3]

u [1]

cu [kPa]

x(n)

x(r)= x(n) 1,1 x(r)= x(n) 0,9

x(n)

x(r)= x(n) 1,1 x(r)= x(n) 0,9

x(n)

x(r)= x(n) 1,1

x(r)= x(n ) 0,9

x(n) characteristic value of geotechnical parameter, x(r) design value of geotechnical parameter, ID relative density index, IL liquidity index, bulk density of soil, u apparent angle of internal friction, cu apparent cohesion intercept, Symbol of noncohesive soil :

P silty sand Pd fine-grained sand, Ps medium sand, Pr coarse sand,

Moisture: mw little moist soil, w moist soil, m wet soil.

Symbol of group of cohesive soil according to Polish Standard:

A moraine cohesive soils consolidated, B other consolidated cohesive soils (except moraine soils) and moraine unconsolidated

cohesive soils. C other cohesive soils unconsolidated, D clay.

2. Determination of load 2.1 Characteristic and design value of load

Type of load Characteristic value of load

Load factor

Design value of load

Nn Tn Mn f Nr Tr Mr [kN] [kN] [kNm] [kN] [kN] [kNm]

Dead-weight, Gk 1,1

Snow load, Qk1 1,5

Wind load from left, Qk2

1,5

Wind load from right, Qk3

1,5

Exceptional load, Fa

1,2

2.2 Combinations of load ultimate limit state. Example

No of combination

Type of combination

Type of load Nr [kN]

Tr [kN]

Mr [kNm]

1. basic

combination

Dead-weight, Gk

2. basic

combination

Dead-weight, Gk Snow load, Qk1

3.

basic combination

Dead-weight, Gk Wind load from right, Qk3

4.

basic combination

Dead-weight, Gk Snow load, Qk1 Wind load from right, Qk3

5.

exceptional combination

Dead-weight, Gk Snow load, Qk1 Wind load from right, Qk3 Exceptional load, Fa1

6.

exceptional combination

Dead-weight, Gk Snow load, Qk1 Exceptional load, Fa1

7. exceptional combination

Dead-weight, Gk Wind load from right, Qk3 Exceptional load, Fa1

8.

basic combination

Dead-weight, Gk Snow load, Qk1 Wind load from left, Qk2

9.

basic combination

Dead-weight, Gk Wind load from left, Qk2

10.

exceptional combination

Dead-weight, Gk Snow load, Qk1 Wind load from left, Qk2 Exceptional load, Fa2

11.

exceptional combination

Dead-weight, Gk Wind load from left, Qk2 Exceptional load, Fa2

3. Determination of shape nad dimensions of foundation

B the foundation width L the foundation length H the foundation heigth

Selection of geometrical dimensions of spot footing. Location of foundation in relation to

column, Calculation characteristic and design value of foundantion weigth 4. Calculation design unit load at the base of foundation for different combinations Eccentricity of load relative to centre of foundation for different combinations Determination of design unit load for different combinations 5. Calculation of ultimate limit state I Bearing capacity calculation according to Polish Standard PN-81/B-03020

for basic combination 1 for unfavoruable combination at the base of foundation at the top of week layer.

Sliding resitance calculation Where the loading is not normal to the base of foundation, foundation shall be checked against failure by sliding on the base. The conditions of ultimate limit state shall be satisfied for all calculations.

6. Calculation of ultimate limit state II PN-81/B-03020 Calculations of settlement shall include both immediate and delayed settlement.

Determination of first loading oedometic modulus of soils and reloading oedometric modulus of soils

Calculations of load combinations for serviceability limit state Determination of stresses below of foundation. Settlement calculations

For settlement calculations soil should be divided into layers of thickness smaller than 0,5 B. Condition for seviceability limit state shall be satisfied. 7. Constructional calculations - reinforcement of foundation.

Calculations of punching Calculatons of foundation reinforcing using bracket method.

8. Constructional figures

Constrictional figure of spot footing Geotechnical profile

9. Project should contain Specification according to Polish Standard PN-90/B-03000 Technical calculations and dimensioning according to Polish Standard: PN-81/B-03020,

PN-82/B-02000; PN-82/B-02001, PN-82/B-02003, PN-82/B-02004, PN-76/B-03001, PN-77/B-02011, PN-80/B-02010

Instruction for Foundation Project No 2 Design reinforced concrete cantilever retaining wall Surcharge q = .............ka, Height of embankment h = .................m. Water level : ...................m.

Soil conditions

Thickness of layer

Type of soil ID/IL

I. Specifications according to Polish Standard PN-90/B-03000 II. Structural analysis 1. Geotechnical parameters according to Polish Standard PN-81/B-03020 (for ultimate

limit state calculations)

Thickness of layer

[m] Type of soil

Geotechnical parameter ID IL

[t/m3]

u [1]

cu [kPa]

x(n)

x(r)= x(n) 1,1 x(r)= x(n) 0,9

x(n)

x(r)= x(n) 1,1 x(r)= x(n) 0,9

x(n)

x(r)= x(n) 1,1 x(r)= x(n ) 0,9

x(n) characteristic value of geotechnical parameter, x(r) design value of geotechnical parameter, ID relative density index, IL liquidity index, bulk density of soil, u apparent angle of internal friction, cu apparent cohesion intercept. 2. Determination of load Horizontal load - determination of earth pressures on vertical wall Vertical load - calculation of wall weigth and backfill weigth

3. Calculations design unit load at the base of wall Calculation of eccentricity of load relative to centre of foundation Determination of design unit load 4. Calculation of ultimate limit state I Bearing capacity calculation according to Polish Standard PN-81/B-03020

at the base of wall at the top of week layer

Sliding resitance calculation Stability of retaining wall rotation calculation. General stability of retaining wall calculation. The conditions of ultimate limit state shall be satisfied for all calculations. 5. Reinforcement of wall

Calculations for vertical wall Calculations for horizontal plate

6. Constructional figures

Constrictional figure of retaining wall Geotechnical profile

7. Project should contain

Specification according to Polish Standard PN-90/B-03000

Technical calculations and dimensioning according to Polish Standard: PN-81/B-03020, PN-82/B-02000; PN-82/B-02001, PN-82/B-02003, PN-82/B-02004, PN-76/B-03001, PN-77/B-02011, PN-80/B-02010, PN-83/B-03010