Special Formwork - Manaform GmbH

Self-supporting form for arch bridges

Details largest bridge:

Width on top 10m, width at the base 20,8m
Span 20,3m, arch length 25,6m

Bridge pier formwork

This large infrastructure job included:

4 bridges
13 viaducts
5 tunnels

Specifications of the piers:

- Length up to 21,5m

Width tapered 75cm to 134cm
Height 6,425m

Formwork for tall viaduct piers

Details piers:

Tall piles in a hyperstatic structure
Modular height from 7m to 17,25m
Thickness adjustable per 100mm from 400mm to 800mm
Self-compacting high performance concrete

Details formwork:

No tie-bars through the elements
Adjustable thickness with saw-tooth coupling
Hydraulic adjustment of the vertical parts
Connections between formwork and grade beam
Box-outs to make chamfered piles
Maximum concrete pressure 420kN/m²
Fair-faced finish: no joints, no grout loss, triangular chamfers
All levels equipped with working platforms
Wind impact engineering on all configurations
Foundation frames for positioning of anchors and box-outs

Quai wall formwork

Sea side quay

Total length 1200m, straight
- Length per phase 23m
- Number of phases 53
Height wall land side 7000mm
Height foot 1500mm / 1750mm
Thickness wall 2160mm / 2800mm
2 sets of formwork
- Alternating
- 1 set for even numbers
- 1 set for uneven numbers
- Track width 22,65m
- Height gantry crane 13m
- Weight per set approx. 100T

Land side quay

Total length 1100m, U-form
- Length per phase 29,39m
- Number of phases 37
Height wall land side 7000mm
Height wall water side 2260mm
Thickness wall 2160mm / 2800mm
1 sets of formwork
- Track width 8,1m
- Height gantry crane 15,23m
- Weight per set approx. 100T

Pier formwork

Columns with a height of 9,2m
Ground section: 3,3m x 1,15m

Hydraulic climbing circular wall formwork

Inner diameter 20m, wall thickness 800mm, height 26,5m
Full circumference inside and outside formwork, poured in one go, height 2m
Partition wall between dry and wet part of the tank is poured afterwards
A 1m starter is cast on both ends of the partition wall in phase 1

Formwork for octagonal tanks

Octagonal reactor pits for a drink water production facility

A series of 6 x 5 linked together octagonal tanks:

2 outer octagons of which 1 sits against an existing wall
3 inner octagons
Height 6430mm, wall thickness 350mm,
external faces 2030mm wide, internal faces 1740mm wide
1 complete set of formwork + 1 extra inside core
Inner formwork consisting of 7 corner panels and 1 striking panel

Adjustable formwork and climbing system for twisted walls

The new County Hall in Antwerp is a building with 8 completely twisted levels.

The outside walls of these floors lean back- or forwards. All concrete used is white and the inside of the building needs to be fair-faced. For this purpose, we designed and manufactured a full steel adjustable and twistable formwork without tie-bars through the wall and of which the inside panels have a stainless-steel facing, in order to avoid rust stains.

Technical specifications

12 internal panels 720cmm x 410cm
4 external panels 720cm x 410cm
12 pneumatic vibrators per internal panel
3 straight corners
4 adjustable twisted corners
16 adjustable window forms
All cut to measure plywood for the windows of the 8 twisted levels
2 set-up frames for the window forms
Crane lifting hook for the panels
Crane lifting hook for the window forms
Adjustable climbing frames, 3m and 3,5m wide

Formwork for curved walls with relief

For the Mons railway station, Construx supplies a one-off full steel circular shuttering system with round relief

Both 2 main circular cores and their connecting walls need to be poured on-site. Almost all walls are round, some of which are even round in both directions. All formwork is full steel: steel frame with steel sheeting.

Precast moulds · on-site formwork and scaffolding for viaduct piers

All piers have the same cross-sectional base and rectangular top

Seen the height of the piers varies from 4m to 14m, all vertical ribs have a different inclination.

The 1st stage consists of a viaduct with 34 high piers, poured on-site, after which 2 precast 80T heads are positioned on hydraulic scaffolds. The connection is poured afterwards.

The 2nd stage consists of a viaduct with 14 lower piers. The precast heads are positioned onto a hydraulic scaffold under which the piers are poured.