A transmitter for predicting stress on a formwork element during and/or after pouring a building material, in particular concrete, into a space enclosed by a formwork including the formwork element, the formwork element comprising a form face and a support structure which is attached to the form face and supporting the form face, wherein the form face is separated from or integrated into the support structure, the system comprising data acquisition means, at least one sensor unit, a control unit and a transmission unit.

A transmitter for predicting stress on a formwork element during and/or after pouring a building material, in particular concrete, into a space enclosed by a formwork including the formwork element, the formwork element comprising a form face and a support structure which is attached to the form face and supporting the form face, wherein the form face is separated from or integrated into the support structure, the system comprising data acquisition means, at least one sensor unit, a control unit and a transmission unit.

Various implementations described herein are directed to a formwork system. In one implementation, the formwork system includes aluminum extrusions and aluminum castings. The aluminum castings and the aluminum extrusions can be assembled by being pressed and riveted together.

The present invention corresponds to a formwork mechanism for casting and molding concrete, comprising a coffer having a sheet and four plates around the sheet perimeter. Each plate has holes arranged on its front face. Also, the formwork mechanism includes a structural element, connected to one of the plates by fixing means. On the other hand, the structural element has lateral perforations that are aligned with the holes of one of the coffer plates. Fixing means pass through the holes and side holes. The structural element may be a beam, a three or four-beam T, and combinations thereof. On the other hand, using several coffers interconnected with structural elements, formworks are constructed for casting flat reticular slabs; and also for curved reticular slabs with greater slab thickness near the beams supporting the slabs in comparison to the span of the slabs.

The present invention corresponds to a formwork mechanism for casting and molding concrete, comprising a coffer having a sheet and four plates around the sheet perimeter. Each plate has holes arranged on its front face. Also, the formwork mechanism includes a structural element, connected to one of the plates by fixing means. On the other hand, the structural element has lateral perforations that are aligned with the holes of one of the coffer plates. Fixing means pass through the holes and side holes. The structural element may be a beam, a three or four-beam T, and combinations thereof. On the other hand, using several coffers interconnected with structural elements, formworks are constructed for casting flat reticular slabs; and also for curved reticular slabs with greater slab thickness near the beams supporting the slabs in comparison to the span of the slabs.

A formwork system that is readily repositionable to facilitate casting of material is disclosed. A front panel and a rear panel are disposed opposite to each other to define a forming space therebetween to receive the material. The front and rear panels sheath the material so as to retain it in the forming space. A coupler extends over the forming space between the front and rear panels and is pivotably coupled thereto to allow rotation of the front and rear panels about the coupler. A tie is spaced apart from the coupler and extends over the forming space between the front and rear panels. The tie is selectively contractible to cause rotation of the front and rear panels away from each other to move the formwork system from a forming position to a release position to selectively engage and disengage with the front and rear panels with the material.

A formwork system that is readily repositionable to facilitate casting of material is disclosed. A front panel and a rear panel are disposed opposite to each other to define a forming space therebetween to receive the material. The front and rear panels sheath the material so as to retain it in the forming space. A coupler extends over the forming space between the front and rear panels and is pivotably coupled thereto to allow rotation of the front and rear panels about the coupler. A tie is spaced apart from the coupler and extends over the forming space between the front and rear panels. The tie is selectively contractible to cause rotation of the front and rear panels away from each other to move the formwork system from a forming position to a release position to selectively engage and disengage with the front and rear panels with the material.

Improved tilt-up and precast construction panels and improved methods for creating the same address deficiencies in the current tilt-up and precast construction panels. Improved tilt-up and precast construction panels use less concrete and less steel reinforcement and weigh less than current tilt-up and precast construction panels. Additionally, improved tilt-up and precast construction panels have greater insulative properties (both heat and sound) than do current tilt-up and precast construction panels. Improved tilt-up and precast construction panels require less labor on the construction site, thereby increasing efficiency and profitability of construction crews. Additional advantages of implementations of the invention will become apparent through the following description and by practice of implementations of the invention.

Improved tilt-up and precast construction panels and improved methods for creating the same address deficiencies in the current tilt-up and precast construction panels. Improved tilt-up and precast construction panels use less concrete and less steel reinforcement and weigh less than current tilt-up and precast construction panels. Additionally, improved tilt-up and precast construction panels have greater insulative properties (both heat and sound) than do current tilt-up and precast construction panels. Improved tilt-up and precast construction panels require less labor on the construction site, thereby increasing efficiency and profitability of construction crews. Additional advantages of implementations of the invention will become apparent through the following description and by practice of implementations of the invention.

An alignment clamp sub-assembly (402) for connecting and aligning a pair of formwork panels (200) with each other is disclosed. The alignment clamp sub-assembly (402) includes a base component (502) to be disposed on a joint between a first formwork panel (200-1) and a second formwork panel (200-2). The base component (502) includes a first slot (504) formed on atop surface, and a second slot (508) formed on a front surface and adapted to receive a tie rod (406) in a lateral direction. The alignment clamp sub-assembly (402) includes a wedge (512) adapted to be received in a vertical direction in the first slot (504). The wedge (512) is inserted to lock the base component (502) on the joint and form the second slot (508) for receiving the tie rod (406).