COLUMN SHOES HPKM, PPKM, PEC - napredne tehnologije · 4 COLUMN SHOES Peikko® HPKM, PPKM and PEC...

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COLUMN SHOES HPKM, PPKM, PEC Replaces the brochure 11/2006 • 9/2007

Transcript of COLUMN SHOES HPKM, PPKM, PEC - napredne tehnologije · 4 COLUMN SHOES Peikko® HPKM, PPKM and PEC...

COLUMN SHOESHPKM, PPKM, PEC

Replaces the brochure 11/2006 • 9/2007

Benefi ts of Peikko® -column joints

Saves time, costs and materials•

Easy and fast adjustments of straightness and height of the column without • packing

No need for extensive reinforcement or mould building•

Doesn’t need support during installation•

The joint is stiff immediately after installation•

The foundation level can be higher compared to socket joint•

Bolt connection doesn’t require in-situ welding•

HPKM, PPKM, PEC -column shoes

Peikko benefi ts

reliable: passed demanding test • program

competitive price and delivery • time

economical and easy to use in • designing, manufacturing and installation of the elements

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CONTENTS

1. DESCRIPTION OF THE SYSTEM .......................4

2. DIMENSIONS AND MATERIALS ......................5

3. MANUFACTURING ..........................................63.1 Manufacturing method 6

3.2 Quality control 6

4. CAPACITIES ....................................................6

5. APPLICATION ..................................................75.1 Limitations for application 7

5.2 Design principles 75.2.1 The concrete cover thickness 75.2.2 Column’s reinforcement 75.2.3 Joining to foundations and column to column connections 14

5.3 Minimum column sizes using standard column shoes 14

5.4 Floor height columns 15

5.5 Special column shoes 155.5.1 Column shoes on an integrated steel plate 15

6. INSTALLATION ..............................................166.1 Installation tolerances 16

6.2 Installation to the mould 16

6.3 Installation of the column shoes 17

7. USING PEIKCOL -SOFTWARE TO CALCULATE THE CAPACITY OF THE COLUMN CONNECTION ................................18

7.1 Using the software 18

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COLUMN SHOES

Peikko® HPKM, PPKM and PEC column shoes are fastening items which allow moment stiff exten-sions and connections between prefabricated col-umns and for example foundations.

All the forces on the column are transferred with column shoes and bolts to the bearing structure, for example to the foundation.

A prefabricated column is fi xed to anchor bolts which are cast into the base of the structure. Fixing is achieved with nuts and washers attached to the anchor bolts. It is also possible to set the column

at the correct height level and vertical position. The joint between column base and structure below should be grouted as soon as possible after instal-lation. After that the connection parts and grouting will work as reinforced concrete structure.

The number of column shoes in the column de-pends on the dimensions of the column, forces on the column, concrete grade and type of column shoe used. Usually four column shoes are enough to create a moment stiff connection.

Figure 1. Column shoes and anchoring bolts in column connection.

1. DESCRIPTION OF THE SYSTEM

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2. DIMENSIONS AND MATERIALSMaterials and stadards:

Plates S355J2+N SFS-EN 10025 Ribbed bars A500HW SFS 1215 B500B prEN 10080-1:1999

Table 1. Dimensions [mm] and weights [kg] of the HPKM column shoes.

X

B

H

t

ø

E

C

40-46

HPKM16

HPKM20

HPKM24

HPKM30

HPKM39

tolerances

B 85 95 105 120 150 +3, -0

C 75 80 85 90 110 +2, -0

E 50 50 50 50 60 ± 1

H 740 835 1040 1310 1775 ± 10

t 15 20 30 45 50

Ø 27 30 35 40 55 +2, -0

X 30 30 30 30 37

weight 2.1 3.5 6.1 12.3 23.3

colour yellow blue grey green orange

Table 2. Dimensions [mm] and weights [kg] of the PPKM column shoes.

H45

B

t

EC

ø

PPKM36

PPKM39

PPKM45

PPKM52

tolerances

B 130 130 130 150 +3, -0

C 105 115 123 131 +2, -0

E 50 60 60 60 ± 1

H 1890 2020 2230 2560 ± 10

t 40 40 50 60

Ø 50 55 60 70 +2, -0

weight 37.8 45.6 61.2 95.2

colour red brown violet white

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3. MANUFACTURING3.1 Manufacturing methodPlates Flame and mechanical cuttingRibbed bars Mechanical cutting Welding MAG by hand or with a robot

Welding class C (SFS-EN 25817)

3.2 Quality control

The quality control involved in producing the steel parts conforms to the requirements set by the Finn-ish Building Codes. Peikko Finland Oy is under the Inspecta Certifi cation for quality control. Column shoes have certifi ed product declarations confi rmed by the Concrete Association of Finland.

Products are marked with the mark of Inspecta, the emblem of Peikko Group, the type of the product and year and a week of manufacturing.

4. CAPACITIESThe capacities in table 4 are according to the Finnish Building Codes. If you require capacities according to other regulations, please contact Peikko’s techni-cal support.

The capacities of the joints are related to the bolt used. The capacities of the column shoes can be measured with PeikCol dimensioning program.

Table 4. Capacities of the column shoes [kN]. The capac-ity of the joint is according to the lower structural class.

RL 2

RL 1

column shoe

boltconcrete grade

ETAK40-1 K40-2

HPKM 16 HPM 16 71.3 65.4 61.7

HPKM 20 HPM 20 111.3 102.0 96.3

HPKM 24 HPM 24 160.4 147.0 138.7

HPKM 30 HPM 30 255.0 233.7 220.4

HPKM 39 HPM 39 443.6 406.6 383.4

PPKM 36 PPM 36 519.9 476.6 435.7

PPKM 39 PPM 39 621.1 569.3 520.5

PPKM 45 PPM 45 831.1 761.8 696.5

PPKM 52 PPM 52 1118.7 1025.5 937.6

PEC 24 PPM 22 212.1 194.4 161.6

PEC 30 PPM 27 321.3 294.5 244.8

PEC 36 PPM 36 519.9 476.6 435.7

PKKM 36 PPM 36 519.9 476.6 435.7

PKKM 45 PPM 45 831.1 761.8 696.5

PKKM 52 PPM 52 1118.7 1025.5 937.6

Table 3. Dimensions [mm] and weights [kg] of the PEC column shoes.

Bt

45-47

H

XE

C

PEC24

PEC30

PEC36

tolerances

B 108 130 170 +3, -0

C 90 105 115 +2, -0

E 50 50 60* ± 1

H 1138 1430 1855 ± 10

t 30 45 50

Ø 35 45 55 +2, -0

X 30 30 37

weight 9.7 19.1 30.2

color light blue black red

* Note! Distance from edge differs from PPKM 36.

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5. APPLICATION5.1 Limitations for applicationThe capacities of the column shoes have been cal-culated for static loads. In the case of dynamic and fatigue loads, greater safety factors have to be used individually for each case. If the application condi-tions are below –20 °C, it is necessary to consider using plates with better cold impact resistance.

5.2 Design principles

The joint durability during the erection should be checked. It can be checked with PeikCol dimension-ing program.

The position of the column shoes and the thickness of grouting concrete defi ne the height level of the bolt from the surface of the concrete.

For columns which are installed only on bolts, the bolts should be calculated for the bending and buck-ling caused by wind load and dead load. If the size of the bolt is not suffi cient, bigger column shoes and bolts must be used.

The grouting of the joints should be done as soon as possible after erecting the prefabricated columns.

5.2.1 The concrete cover thickness

The fi re-resistance period and environment class, in which the column shoe is situated, defi nes the concrete cover thickness according to local regulations.

The concrete cover thickness is 40 - 46 mm in HPKM column shoes, 45 mm in PPKM column shoes and 45 - 47 mm in PEC column shoes when the column shoes are located in the corners of the column. A greater concrete cover thickness can be achieved by moving the column shoe closer towards the cen-tre of the column. Location of the foundation bolts have to be presented in the foundation drawing.

5.2.2 Column’s reinforcement

The space required by casting boxes has to be taken into account when designing the length of column’s reinforcement.

The lower end of the column above the casting boxes is reinforced as shown in chapters 5.2.2.1 - 5.2.2.3. EC 2 requires separate stirrups for the splice area of the main bars.

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COLUMN SHOES

5.2.2.1 Details for additional reinforcement with HPKM column shoes

l b

1

1

3

3

l b

3

1

1

3

HPKM 30 shown in the pictures.

We recommend that reinforcement for splices is done according to EC 2 (9.5.3 and 8.7.4.1)

Main bars(according to plans)

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l b1

1 2

2

3

3

4

4

Table 5. The required stirrups for HPKM 16 - 39 column shoes and the minimum length of lb (U-stirrup’s bar above column shoe’s side plate).

HPKM 16 HPKM 20 HPKM 24 HPKM 30 HPKM 39

U-stirrups 1 4 T6 4 T6 4 T6 4 T6 4 T8

U-stirrups for middle shoes

/ pair2 2 T6 2 T6 2 T6 2 T6 2 T8

stirrups 3 2 T8 2 T8 2+1 T8 2+1 T8 2+1 T10

a 145 170 205 245 305

b - - 40 40 40

middle stirrups

4 2 T8 2 T8 2+1 T8 2+1 T8 2+1 T10

lb ≥ 300 ≥ 300 ≥ 300 ≥ 300 ≥ 500

T = A500HW (or corresponding)

ba

3

Main bars(according to plans)

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5.2.2.2 Details for additional reinforcement with PPKM column shoes

l b

3

3

1

1

l b

3

3

1

1

Main bars(according to plans)

PPKM 39 shown in the pictures.

We recommend that reinforcement for splices is done according to EC 2 (9.5.3 and 8.7.4.1)

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Table 6. The required stirrups for PPKM 36 - 52 column shoes and the minimum length of lb (U-stirrup’s bar above column shoe’s side plate).

PPKM 36 PPKM 39 PPKM 45 PPKM 52

ab

c

3

U-stirrups 1 4 T8 4 T8 4 T8 4 T8

U-stirrups for middle shoes

/ pair2 2 T8 2 T8 2 T8 2 T8

stirrups 3 2+1 T10 2+2 T10 2+2+1 T10 2+2+1 T12

a 250 270 300 330

b* 40 45 45 50

c - - 40 45

middle stirrups

4 2+1 T10 2+2 T10 2+2+1 T10 2+2+1 T12

lb ≥ 500 mm ≥ 500 mm ≥ 500 mm ≥ 500 mm

T = A500HW (or corresponding) *Measure b is to the middle of reinforcement bundle or single bar

l b3

3

2

4

4

1

1

Main bars(according to plans)

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5.2.2.3 Details for additional reinforcement with PEC column shoes

l b

3

3

1

1

l b

3

3

1

1

Main bars(according to plans)

PEC 36 shown in the pictures.

We recommend that reinforcement for splices is done according to EC 2 (9.5.3 and 8.7.4.1)

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Table 7. The required stirrups for PEC 24 - 36 column shoes and the minimum length of lb (U-stirrup’s bar above column shoe’s side plate).

PEC 24 PEC 30 PEC 36

ab

3U-stirrups 1 4 T6 4 T6 4 T8

U-stirrups for middle shoes

/ pair2 2 T6 2 T6 2 T8

stirrups 3 2+1 T8 2+2 T8 2+1 T10

a 225 280 330

b* 40 40 40

middle stirrups

4 2+1 T8 2+2 T8 2+1 T10

lb ≥ 300 mm ≥ 300 mm ≥ 500 mm

T = A500HW (or corresponding) *Measure b is to the middle of reinforcement bundle or single bar

l b3

3

1

1

2

2

4

4

Main bars(according to plans)

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COLUMN SHOES

5.2.3 Joining to foundations and column to column connectionsTable 8. The expansion of the ‘Δ min’ [mm] and splitting stirrups.

B

Ash

H

Ash

concrete grade

(column)

concrete grade

(foundation)

the bolts of the tension side yield Δ

cross section compressed Δ

diametric reinforcement (A500HW or

corresponding) Ash > A [mm2]

K40-1 K30-2 0,13 x H 0,24 x H A = B x H / 430

K50-1 K30-2 0,26 x H 0,43 x H A = B x H / 240

K60-1 K30-2 0,38 x H 0,61 x H A = B x H / 170

K60-1 K40-2 0,20 x H 0,33 x H A = B x H / 278

K80-1 K40-2 0,38 x H 0,61 x H A = B x H / 153

The concrete strength of the lower column, in the column to column connection should be at least the same as the concrete strength of the upper column.

5.3 Minimum column sizes using standard column shoesTable 9. Standard column shoes in the rectangular column [mm].

b

b

A1

A1

HPKM PPKM PEC

16 20 24 30 39 36 39 45 52 24 30 36

A1 112 117 132 149 187 184 188 238 288 140 173 194

bmin 235 245 270 300 380 380 380 480 580 280 346 388

Table 10. Standard column shoes in the circular column [mm].

A2

d

c/c HPKM PPKM PEC

16 20 24 30 39 36 39 45 52 24 30 36

A2 136 143 164 187 235 234 235 306 374 175 220 245

dmin 280 300 335 380 480 480 480 630 770 350 440 490

If column shoes must be placed in the smaller column, please contact Peikko’s technical support.

The center distances of the anchor bolts for the full capacity are found from Peikko® PPM and HPM anchor bolts manual.

2

d - 2Ec/c = (E from tables 1, 2 and 3)

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5.4 Floor height columnsBy using HPKM 16 - 39 column shoes with column height HPM bolts the splices needed for the col-umn can be reduced. The bolts also act as the main reinforcement of the column. This way the needed reinforcement materials can be greatly reduced.

The bolts are manufactured to the required length.

Figure 2. Rectangular and circular column with fl oor height reinforcement.

5.5 Special column shoesSpecial column shoes might be needed for exam-ple in circular columns or on the side of the column as middle shoes. Column shoes can also be made with a integrated steel plate.

5.5.1 Column shoes on an integrat-ed steel plate

Integrated steel plate is used if the column shoes are too big for the column’s section or the plate is used as a mould. The plate can be made the same size as the column’s intersection or just part of it.

Figure 3. Column shoes on an integrated steel plate.

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6. INSTALLATION6.1 Installation tolerancesTolerances on the horizontal plane ± 2 mm

6.2 Installation to the mouldThe column shoes are placed into the reinforcement and fi xed by their bottom plates to the mould’s end plate with bolts. There are separate casting boxes available for the types HPKM 16 - 39 that also ena-ble the shoes to be fastened to the end plate of the mould with provided bolts. These parts are painted by the same colour as corresponding column shoes so that they can be matched easily.

The bolt M16, which always comes with a spacer equal to the size of the column shoe’s bolt hole, is used for attachment. With the help of the spacer, the shoe can be fi xed to the correct place in the end plate.

A check list before casting The right type of column shoe is being used• column shoes are attached in the right position• anchor bars of the column shoe are banded • into the main reinforcement casting boxes are in place and fi lled if • necessary

A check list after casting no changes has occurred in shoe position • shoe has not rotated• possible joint casting tubes are not fi lled with • concretecasting boxes and excess concrete has been • removed

Figure 4. Separate casting box for the column shoe.

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6.3 Installation of the column shoesThe column is installed at the proper level either by placing it directly on the bolts or by using steel plates under the column. After the bolts have been tightened, for example with ring spanner, the crane can be detached from the column. The installation must be done according to the erection plan.

Installation instructions can be found also in Peikko® PPM and HPM anchor bolts manual.

After the column is installed at right height and postition, and the nuts are tightened, the joint can be casted by following instructions from concrete provider. The concrete must be non-shrinking type and match plans. The grouting mortar strength must be at least 70% of the needed concrete grade of the column.

Figure 5. The joint can be grouted for example with pressure vessel.

Table 13. Installation tolerances and the anchoring bolt’s height level from the surface of concrete when HPKM, PPKM and PEC column shoes are used.

installation tolerance T

inst

alla

tion

tole

ranc

e T

location toleranceof bolt group

±10 mm

column shoe

con-necting

boltgrouting

bolt’s height

from the casting surface

installation tolerance

for the boltT

HPKM16

HPM16

50 105 ± 3

HPKM20

HPM20

50 115 ± 3

HPKM24

HPM24

50 130 ± 3

HPKM30

HPM30

50 150 ± 3

HPKM39

HPM39

60 180 ± 3

PPKM36

PPM36

55 170 ± 4

PPKM39

PPM39

60 180 ± 4

PPKM45

PPM45

65 195 ± 4

PPKM52

PPM52

70 225 ± 5

PEC24

PPM22

50 130 ± 3

PEC30

PPM27

50 160 ± 3

PEC36

PPM36

55 180 ± 4

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7. USING PEIKCOL -SOFTWARE TO CALCULATE THE CAPACITY OF THE COLUMN CONNECTIONWith PeikCol dimensioning software the capacity of column connection can be easily and quickly calcu-lated and verifi ed.

The software can be freely downloaded from Peik-ko’s website www.peikko.com.

7.1 Using the software

First, determine the design values of forces in 1. the column joint at the joint level.Nd = design value of normal force [kN]Md = design value of bending moment [kNm]The additional bending moment caused by eccentrical normal force must be added to the design value of bending moment.Choose used materials.2. Choose the shape of cross section and input 3. the dimensions.Choose desired column shoe type.4. Input the design forces of the joint. Also 2-axis 5. bending moment can be checked. Normal

force is given as positive value when there is compression in the joint.Calculate the capacity of the joint by clicking 6. the calculator -icon.Compare the given reference point (N7. d, Md) with the Pi-capacity curve of the bolts. If the reference point remains inside of the capac-ity curve, the chosen joint connection is acceptable.The capacity of the joint during erection situa-8. tion can be verifi ed the following way: Choose ’Erection situation..’ from ’Dimensioning’ pull-down menu. Choose ’Fixed’ for the buckling length of the bolt. Calculate and input the de-sign values of forces for installation situation. Click the ’Calc’ -button, and the software will calculate the utilization rate. If the rate remains under 100%, the chosen column shoes are acceptable.

More information about the PeikCol from Peikko’s technical support.

Figure 6. PeikCol -dimensioning software.

Peikko Group • www.peikko.com