Ulma MK Structure User manual

Construcción
User’s Guide
MK STRUCTURE
MK STRUCTUREMK STRUCTURE
MK STRUCTURE
E03FFN

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IMPORTANT
:
Any safety provisions as directed y the appropriate
governing agencies must e o served when using our
products.
The pictures in this document are snapshots of situations at
different stages of assem ly, and therefore are not complete
images. For the purpose of safety, they should not e
deemed as definitive.
All of the indications regarding safety and operations
contained in this documents, and the data on stress and
loads should e respected. ULMA Construcción’s Technical
Department must e consulted anytime that field changes
alter our equipment installation drawings.
The loads featured in this document, related to the asic
elements of the product, are approximate.
Our equipment is designed to work with accessories and
items produced y our company only. Com ining such
equipment with other rands is not only dangerous without
having made all corresponding verifications, it also voids any
or all our warranties.
The company reserves the right to introduce any
modifications deemed necessary for the technical
development of the
product.
“
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Original document”
Original document” Original document”
Original document”
produced and
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approved y ULMA Construcción.
approved y ULMA Construcción.approved y ULMA Construcción.
approved y ULMA Construcción.
All rights reserved.
Neither all nor part of this document may e reproduced or transmitted in any way y any electronic or mechanical procedure,
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Construcción.
Construcción.Construcción.
Construcción.
© Copyright y ULMA C y E, S. Coop
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INDEX
INDEXINDEX
INDEX
1. PRODUCT DESCRIPTI
1. PRODUCT DESCRIPTI1. PRODUCT DESCRIPTI
1. PRODUCT DESCRIPTION
ONON
ON ................................
................................................................
.....................................
..........
..... 4
44
4
1.1. MK TRUSS ....................................................... 5
1.2. MK FORM CARRIERS ........................................ 7
2. SYSTEM COMPONENTS
2. SYSTEM COMPONENTS2. SYSTEM COMPONENTS
2. SYSTEM COMPONENTS AND ACCESSORIES
AND ACCESSORIESAND ACCESSORIES
AND ACCESSORIES ......
............
...... 13
1313
13
2.1. GRAPHIC DESCRIPTION ................................... 13
2.2. ITEMS DESCRIPTION ....................................... 17
3. ASSEMBLY, USE AND
3. ASSEMBLY, USE AND3. ASSEMBLY, USE AND
3. ASSEMBLY, USE AND DISMANTLING
DISMANTLINGDISMANTLING
DISMANTLING .................
..................................
................. 25
2525
25
3.1. TECHNICHAL ASSEMBLY INSTRUCTIONS.
GENERAL ASSEMBLY .............................................. 25
4. SOLUTIONS
4. SOLUTIONS4. SOLUTIONS
4. SOLUTIONS ................................
................................................................
......................................................
............................................
...................... 29
2929
29
4.1. STRUCTURE TYPES .......................................... 32
4.2. STRUCTURE LAYOUTS ..................................... 34
4.3. BRACING BETWEEN STRUCTURES .................... 38
4.4. STRUCTURE CONNECTION WITH SHORING
SYSTEM .................................................................. 39
4.5. STRUCTURE LEVELLING .................................... 40
4.6. FORWARD MOVING OF STRUCTURES: ROLLING
SYSTEM .................................................................. 41
4.7. SAFETY AND ACCESS PLATFORMS ................... 42
5. SYSTEM PROPERTIES
5. SYSTEM PROPERTIES5. SYSTEM PROPERTIES
5. SYSTEM PROPERTIES ................................
................................................................
.......................................
..............
....... 43
4343
43
5.1. MAIN ITEM PROPERTIES ................................... 43
5.2. LIMITS FOR STANDARD STRUCTURES ................ 50
6. TERMS AND CONDITI
6. TERMS AND CONDITI6. TERMS AND CONDITI
6. TERMS AND CONDITIONS OF USE
ONS OF USEONS OF USE
ONS OF USE ....................
........................................
.................... 55
5555
55
6.1. SAFE OPERATING GUIDELINES .......................... 55
6.2. TRANSPORT, HANDLING AND STORAGE ........... 58
6.3. INSPECTION AND MAINTENANCE ..................... 59
7. LEGAL REFERENCES
7. LEGAL REFERENCES7. LEGAL REFERENCES
7. LEGAL REFERENCES ................................
................................................................
.........................................
..................
......... 61
6161
61

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MK
MK MK
MK STRUCTURE
STRUCTURESTRUCTURE
STRUCTURE
1.
1.1.
1. PRODUCT DESCRIPTION
PRODUCT DESCRIPTIONPRODUCT DESCRIPTION
PRODUCT DESCRIPTION
The MK System is a product designed for heavy-duty structures of high load- earing capacity mainly used in civil
engineering.
Its main feature is its versatility to configure all types of structures such as gantry structures, formwork carriers and
tunnel structures, shoring structures, horizontal and vertical formwork, other structures for formwork support,
clim ing rackets, sla perimeter protection structures and other applications.
The core item for all these solutions is the Waler MK. Its ela orated design and the com ination with various
accessories, oth unique of the MK system as well as shared with other ULMA products, ena le to adapt it to all
those a ove mentioned applications.
With the MK Structure system, two or more load- earing structures are formed in one direction, the so-called main
axis. These structures are raced to each other giving the required sta ility to the whole as well as a sor ing wind
loads acting on the structure in perpendicular direction to the main axis.
Depending on their field of application, mainly two structure types are distinguished:
−MK Truss Structure
MK Truss StructureMK Truss Structure
MK Truss Structure
−MK Form Carrier Structure
MK Form Carrier StructureMK Form Carrier Structure
MK Form Carrier Structure
In the following, the two structure types are descri ed in detail.

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1.1. MK TRUSS
MK TRUSSMK TRUSS
MK TRUSS
A truss structure, i- or multi-supported, supports the formwork and a sor s the loads acting on the formwork.
The formwork systems commonly used with the MK Truss Structure are Enkoform VMK or Enkoform H-120.
The typical truss form of the structure is achieved with equilateral triangles consisting of Walers MK and Nodes MK
assem led in the same plane. These structures are raced to each other with joints and tu es. Depending on the
required load- earing capacity of the truss, the main axis can e reinforced with push-pull props and tu es.
The Waler MK range allows assem ling trusses of different load- earing capacities. The most optimum load-
earing capacity-weight ratio is the one given y a distance of 3 m etween nodes axes and 2.6 m etween waler
axes.

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MK MK
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STRUCTURE
If the span of the upper oom (or element that works at compression) is sought to e reduced or the ending
capacity to e increased, a vertical tu e is used to make the structure ear higher loads.
The spans possi le to cover with the MK Truss Structure change depending on the waler length used. Moreover,
the permissi le working load changes depending on the layout of the truss structure.
The com ination of the MK Truss Structure system with the MK Shoring system offers an even wider range of
solutions as shown in the following figures.
Solution combining the MK Truss Structure and MK Shoring system
Solution combining the MK Truss Structure and MK Shoring systemSolution combining the MK Truss Structure and MK Shoring system
Solution combining the MK Truss Structure and MK Shoring system
Solution combining the MK Truss and MK Form Carrier Structure
Solution combining the MK Truss and MK Form Carrier Structure Solution combining the MK Truss and MK Form Carrier Structure
Solution combining the MK Truss and MK Form Carrier Structure
MK- 2625 MK- 2625MK- 2625 MK- 2625
MK- 2 625
MK-2
625
MK- 2625
MK-2625 MK-2625 MK-2
625
MK-2625 MK-
2625
MK-2625 MK-2625
MK-4 625 MK-4 625
MK- 2625
MK- 2625
MK- 1125 MK- 1125
MK- 2625
MK- 1125 MK- 1125
MK- 2625
MK- 2625
MK-2
625
MK-2625
MK- 2 625
MK- 2625
MK-2625
MK-2625
MK- 2625
MK-4 625 MK-4 625
MK- 2625
MK- 2625
MK- 1125 MK- 1125
MK- 2625
MK- 1125 MK- 1125
MK- 1 250 MK- 1 250 MK- 1 250 MK- 1 250 MK- 1 250 MK- 1 250 MK- 1 250 MK- 1 250 MK- 1 250 MK- 1 250 MK- 1 250 MK- 1 250
MK - 2625
MK-2625
MK-2625
MK - 2625
MK-2625
MK-2625
MK- 2625
MK - 2625
MK-2625
MK-2625
MK-4625 MK-4625
MK - 1125 MK - 1125
MK- 11 25 MK- 11 25
MK -5625
MK -5625
MK -5625
MK - 2625

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1.2. MK FORM CARRIERS
MK FORM CARRIERSMK FORM CARRIERS
MK FORM CARRIERS
The following types of form carriers can e erected with the MK system:
−Deck flange form carrier
−Parapet form carrier
−Vertical formwork carrier
−Cut-and-cover tunnel form carrier
1.2.1. DECK FLANGE FORM CARRIER
DECK FLANGE FORM CARRIERDECK FLANGE FORM CARRIER
DECK FLANGE FORM CARRIER
In the case of metallic ridges which are made up of pre-cast components or of a pre-cast centre part, it is
common to uild the wings in a su sequent stage. This can e done with deck flange form carriers. These are
heavy-duty form carriers as the jacks are a le to withstand a maximum load of approximately 360 kN. Due to the
load orne y the structure, the forward-moving of the form carrier is achieved y means of pull or push auxiliary
devices.
A deck flange form carrier with these properties usually consists of the following parts:
oMain structure: structure earing the concrete load.
oForward-moving structure: secondary structure which effects the movement and ears the forces
during such.
oBracing: components that withstand wind effects and transverse movements.
oFormwork: part in touch with the concrete shaping it, allowing its adjustment and opening if this is
required for the movement of the structure.
oRolling and levelling system: components that ena le the rolling of the truss and its levelling at a
specific place, as well as its stripping.
oSafety items and access: walkway platforms, handrails etc., depending on the requirements of each
project.

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There are two types of deck flange form carriers:
−Those where the rolling system is part of the form carrier (i.e. integrated in the secondary structure) or
−Those where the rolling system is not part of the form carrier.
A further distinction may e the requirement to cast oth wings at the same time or one after the other.
In the first case, the rolling system rests on a guide rail to move the formwork to su sequent casting positions. It
can e applied in those cases where there is a solid ase (pre-fa ricated or pre-cast) to support the guide rail and
the levelling jacks on.
Deck flange form carrier for a bridge with a pre
Deck flange form carrier for a bridge with a preDeck flange form carrier for a bridge with a pre
Deck flange form carrier for a bridge with a pre-
--
-cast core
cast corecast core
cast core
In the second case, it is the other way around. The ogie forms part of the secondary structure and the rolling
system is fixed to the ridge. This is rather common where there is no pre-cast structure (e.g. metallic ridges).
Deck flange form carrier for a metallic bridge
Deck flange form carrier for a metallic bridgeDeck flange form carrier for a metallic bridge
Deck flange form carrier for a metallic bridge
TF- 0 121
TF- 0 121
TF- 0 121

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1.2.2. PARAPET FORM CARRIER
PARAPET FORM CARRIERPARAPET FORM CARRIER
PARAPET FORM CARRIER
This form carrier is a lighter version of the previous one. It is used for applications with lower load- earing and
forward-moving capacities. Unlike the one mentioned eforehand, the parapet form carrier can e moved manually
and requires a solid ase where the guide rail rests on. The jacks of this form carrier type are a le to withstand a
maximum load of approximately 150 kN.
The most common applications for parapet form carriers are the construction of protection parapets for ridges or
solutions that do not require high load- earing capacity, mainly projects with formwork ta les.
Form carrier for bridge parapets
Form carrier for bridge parapetsForm carrier for bridge parapets
Form carrier for bridge parapets
A parapet form carrier usually consists of the following parts:
oMain structure: structure earing the concrete load.
oBracing: components that withstand wind effects and transverse movements.
oFormwork: part in touch with the concrete shaping it, allowing its adjustment and opening if this is
required for the movement of the structure.
oRolling and levelling system: components that ena le the rolling of the truss and its levelling at a
specific place, as well as its stripping.
oSafety items and access: walkway platforms, handrails etc., depending on the requirements of each
project.

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1.2.3. VERTICAL FORMWORK CARRIER
VERTICAL FORMWORK CARRIERVERTICAL FORMWORK CARRIER
VERTICAL FORMWORK CARRIER
The main feature that distinguishes the vertical formwork carrier from others is that the vertical loads acting on the
structure are exclusively caused y the self-weight of the structure. Its load- earing and forward-moving capacities
are still lower than the ones of the a ove mentioned form carriers. The jacks of this form carrier type are a le to
withstand a maximum load of approximately 60 kN.
As the parapet form carrier, the vertical formwork carrier can e moved manually and requires a solid ase where
the guide rail rests on. It is mainly used in the construction of single-sided or dou le-sided concrete walls. In the
case of single-sided walls, there are considera le horizontal loads which must e taken into account when using
the vertical formwork carrier.
Vertical formwork carrier for double
Vertical formwork carrier for doubleVertical formwork carrier for double
Vertical formwork carrier for double-
--
-sided walls
sided wallssided walls
sided walls
Vertical formwork carrier for single
Vertical formwork carrier for singleVertical formwork carrier for single
Vertical formwork carrier for single-
--
-sided walls
sided wallssided walls
sided walls