In action on Canadian Highway 401
MevaLite and MEVA32 delivering high-speed production on culvert ramp project
Data & Facts
- Culvert ramp, Highway 401, Ontario (CDN)
- MEVA systems
- MevaLite wall formwork
- MEVA32 shoring system
- Triplex heavy-duty bracing system
- Engineering and support
- MEVA Formwork Systems Inc., Springfield, Ohio
High-speed production on culvert ramp project
The origin of Highway 401 in southern Ontario can be traced back to the Queen Elizabeth Highway. Opened in the 1930’s, the four-lane highway with its grassy median was the first of its kind in Canada. Today, parts of the Highway 401 pass through Toronto and it is considered to be one of the busiest highways in all North America.
When MEVA was approached about providing formwork for the new culvert ramp on the Highway 401, Tamer Gerges, MEVA’s Canadian Sales Representative, realized that competition would be fierce.
The culvert ramp is designed with two 30’-0 tall abutment walls. The abutment walls and bridge will then be poured at the same time. MevaLite and the new MEVA32 shoring system were rec ommended as the systems of choice. As part of the challenge in constructing the bridge, the forms were required to remain in place until after the slab for the ramp was poured. Since MevaLite can be erected as either a handset formwork or flown as gang, the system was selected. The contractor assembled MevaLite as a gang and then flew it into place for the two abutment walls. MevaLite worked perfectly since it offered the contractor the ability to strip the formwork by hand during removal since crane access would not be available as the formwork was now under the bridge. The 30’-0 tall abutment walls were designed with an inverted batter, which required the use of the heavy duty MEVA Triplex wall braces that supported the inverted batter and ensured the walls remained aligned.
The cast-in-place bridge deck featured an “Arched Rigid Design” which required a shoring system that would be flexible enough to support varying deck heights and slab thicknesses. The bridge was designed with a thickened slab of 3.0 ft centered over the abutment walls and then tapering to 1.7 ft in the center of the bridge deck. Due to limited space and adverse conditions at the base of the struc ture, the contractor chose to erect the MEVA32 towers in two frame-high sections and then flew each section into place to ultimately assemble to a five-frame high tower (30’-0 heights). One of many features offered by MEVA32 is the ability to build the towers laying on the ground and then fly them into place vertically. This feature reduces the amount of time required for workers to be climbing up the shoring towers and provides a more stable environment to assemble the towers and then fly them into the final location. The towers were stacked five frames high using frame combinations of the 8’-0, 6’-0 and 4’-0.
Rather supporting a parking garage, high-rise or building a bridge, MEVA32 is delivering customer satisfaction while saving labor and increasing their profits.