MSS presentation (200ppi)

Movable ScaffoldingSystem

MSS Presentation

Strukturas, your partner for turnkey projects, worldwide.

Strukturas company in recent decades became Norwegian leading provider of Movable Scaffolding System

equipment, being present in more than 200 projects.

We strive for creating solutions that exceed the expectations of our customers.

Movable Scaffolding System

-Design and engineering,

- Fabrication and quality control,

- Supervision & operation.

SIMPLICITY TAKES WORKWITH US

Overhead MSS

Underslung MSS

Underslung MSS

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Box cross section deck solution

• Used in situ casting of full spans

• Currently used on road and railway decks

• Special solutions for special bridge projects

• Hydraulic operated main functions

• Labor saving solutions

• Easy to adjust to radius, slope and span variations

• Easy installation of the rebar prefabricated parts

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Movable Scaffolding System Underslung Solution

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Main Components:

• A- Main girder• B- Noses• C- Suspension gallows• D- Transverse beams• E- Supporting brackets• I- External formwork• L- Counterweight

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Main Components:

• A- Main girder• C- Suspension gallows• D- Transverse beams• E- Supporting brackets• F- Launching wagons• G- Main cylinders• H- Platforms and ladders• I- External formwork• J- Internal formwork• L- Counterweight• K- Transport trolley

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Main cycle steps:

• Columns showing the blockouts where to fix the supporting brackets

• When no blockouts can be used we use a saw tooth plate solution or struts to the column foundation

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• Two pairs of supporting brackets installed at columns(threaded bars connecting the 2 brackets of each pair – not shown)

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• Main girders and noses installed on top of the launching wagons

• The launching wagons are placed on top of the supporting brackets

• The system is made by 2 symmetrical halves

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• Transverse beams are installed connecting the 2 main girders

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• Suspension gallows is installed at the tip of the previous span and suspends the main girders rear end during casting.

• Two hydraulic cylinders transmit the loads at the rear from the suspension gallows to the deck webs during casting

• During casting, system is suspended at the rear and is supported to the brackets at the front trough the hydraulic cylinders

• Two hydraulic cylinders transmit the loads at front from the main girders to the supporting brackets

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• External formwork installed on top of the main structure

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• Internal formwork is installed

• The internal formwork transport trolley is shown

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• Deck casted

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• Previous to the MSS launching to the next span the 3th supporting brackets pair is installed at the front column

• Launching wagons are installed on top of the 3th supporting brackets pair

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• After deck is pre-stressed the MSS can be lowered at the 2 rear and 2 front main hydraulic cylinders

• Transverse beams central connections are removed

• Both MSS halves are then open to the end of the supporting brackets, using the launching wagons

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• Both MSS halves can now be launched to the next span using the launching cylinders located at the launching wagons

• Both MSS halves will pass outside the columns

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• When both MSS halves reach the longitudinal position at next span system is closed by moving the launching wagons towards the columns and transverse beams are connected again

• MSS is now lifted to the casting elevation using the 2 rear and the 2 front hydraulic cylinders

• Rebar works can start and transport of the internal formwork will be made simultaneous to that operation

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General project views

• Different columns and hammerhead geometries

• Variable horizontal and vertical deck radius

• Unfill bottom formwork elements can be used to cast height variation decks


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• Can be used at parallel decks with reduced space in between them

• Installing tower cranes and concrete pumps at the main girders

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Internal Formwork and Rebar works

• The internal formwork doesn’t move together with the MSS main structure.

• The opening and closing internal movements are made hydraulically through an internal formwork transport trolley.

• The internal formwork panels are transported one at a time.

• Diaphragm opening to be big enough to pass

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Cambering & Nose adjustment

• Few adjustable screw jacks to be adjusted

• Split the main structure into 3 sections (front nose-main girder-rear nose) and design a unique hinged connection between the parts has made it possible to use the MSS with as small as 200m radius

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Special solutions

• Big working areas at front of the MSS formwork

• Special supporting brackets installations

• Rebar transport solutions

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Main Components:

• A- Main girder• B- Rear nose• C- Suspension gallows/rolling

support• D- Transverse beams• E- Supporting brackets• F- Launching wagons• I- External formwork

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Movable Scaffolding System Underslung Selflaunching Solution

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Main Components:

• A- Main girder• D- Transverse beams• E- Supporting brackets• F- Launching wagons• G- Main cylinders• H- Working platforms and ladders• I- External formwork• J- Internal formwork• K- Transport trolley

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Selflaunching MSS

• Supporting brackets self relocation without the need for cranes

• Easy to use on the water or with very high columns

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Internal Formwork and Rebar works

• Suspension gallows/rear support equipped with powered wheels and rails

• Internal formwork transported by a trolley

• Supporting brackets self relocated by a winch system

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TT section deck solution


• Currently used on road decks






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Main Components:

• A- Main girder• B- Noses• C- Suspension gallows• D- Transverse beams• E- Supporting brackets• I- External formwork• L- Counterweight

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Main Components:

• A- Main girder• C- Suspension gallows• D- Transverse beams• E- Supporting brackets• F- Launching wagons• G- Main cylinders• H- Platforms and ladders• I- External formwork• J- Internal formwork• L- Counterweight

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General Project views

• Internal formwork travelling with the MSS main structure

• Internal formwork folding system hydraulic operated

• Hinge transverse beams allowing rotation and folding of internal formwork

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• Folded internal formwork passing outside the hammerhead

• Different column and hammerhead geometries

• Internal formwork supported by struts to the transverse beams


Overhead MSS

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Box cross section deck solution


• Currently used on road and railway decks






Movable Scaffolding System Overhead Solution

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Main Components:

• A- Main girder• B- Noses• C- Rear Support• E- Main Supports• F- Launching wagons• I- External formwork• L-Bottom platform

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Main Components:

• A- Main girder• D- Transverse beams• E- Main Supports• F- Launching wagons• G- Main cylinders• H- Working platforms and ladders• I- External formwork• J- Internal formwork• K- Hangers• L-Bottom platform


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• Easy to install behind the abutment

• Easy to move transversally from one deck to the other

• Few formwork suspensions

• Formwork folding system hydraulic operated


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• Many different main support solutions

• Main support splited in several parts to easy the installation at hammerhead

• Easy to use with horizontal and vertical deck curves


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Formwork

• Formwork supported on a bottom platform

• Cambering introduced on the adjustable screw jacks, struts and suspensions


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Selflaunching MSS

• Main supports self relocation without the need for cranes

• Easy to use above water or with very high columns

Movable Scaffolding System Overhead Selflaunching Solution

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Strukturas can design and deliver Bridge Building

Equipment covering all the cast in situ and precast bridge deck constructions methods

Strukturas is a regular partner of the specialized world bridge contractors, during the development process and pro current

stages. Contributing with optimized and integrated

package solutions Strukturas is committed to quality OVER 200 projects world wide!

SIMPLICITY TAKES WORKWITH US

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Engineering

MSS presentation (200ppi)