The present invention relates to a prefabricated infilled panel-frame structure capable of accommodating seismic-loading and seismic energy dissipation, and a construction method thereof, including a frame body, a prefabricated infilled panel group, a panel connector, and a disc spring assembly. During an earthquake, the present invention slides to dissipate energy only after the maximum starting sliding force is exceeded, thus providing the structure with a relatively high lateral stiffness prior to sliding. After an earthquake, the disc spring assembly of the present invention may provide a certain restoring force due to being compressed so as to reduce the residual displacement. Further, the present invention achieves the bidirectional deformation cooperation of the prefabricated infilled panel under earthquakes, so that the infilled panel may still achieve the function of seismic energy dissipation under the coupling action of in-plane and out-of-plane loads.

A building panel includes an insulating member having a first surface and a second, opposing surface, and a first sheathing member secured to the first surface of the insulating member and including a coupling portion. The coupling portion has a recessed portion, a first extension portion adjacent the recessed portion, and a second extension portion on the opposite side of the recessed portion from the first extension portion. A sum of a width dimension of the first extension portion and a width dimension of the second extension portion is substantially equal to a width dimension of the recessed portion, and at least one side surface of the insulating member is substantially coplanar with a respective side surface of the first sheathing member.

A method for constructing a cylindrical tank which has a metallic inner tank and a concrete outer tank includes a step of building up a PC wall in an outer circumferential edge portion of a base plate, a step of assembling an outer tank roof on the base plate other than the outer circumferential edge portion of the base plate, a step of lifting the outer tank roof which is on the base plate using a jack-up unit while the PC wall is being built up and then holding the outer tank roof on the PC wall, and a step of assembling the inner tank independently of the outer tank roof in a space under the outer tank roof which is created due to the lifting.

A method for mounting a fixture on a membrane-covered roof involves a bracket with wings coated on upper surfaces with a material rendering the wings heat weldable to roofing membrane. The bracket is placed on the roof membrane, and a transition membrane with a cutout for a raised portion of the bracket is placed over the bracket and heat welded to both the upper wing surfaces of the bracket and to the roof membrane.

It provides a reinforcing bar binding machine capable of surely wrapping and binding a wire to a binding object. The reinforcing bar binding machine includes a magazine in which two wires are housed so as to be drawable, a curl guide unit which winds the arranged wires around the reinforcing bar, by the operation of feeding the parallel wires at the curl guide unit to wind around the reinforcing bar, a wire feeding unit which to wrap around the reinforcing bar with the wires wound around the reinforcing bar, and a binding unit which twists a intersecting portion between one end side and the other end side of the wire wound around the reinforcing bar.

The disclosure relates to a formwork device, in particular for arrangement between two bulkhead partitions of a battery mould, for manufacturing construction elements, in particular precast concrete elements, said formwork device comprising two formwork elements which each have a formwork front side for applying concrete and a formwork rear side, wherein the formwork elements are pivotably connected to one another at first end regions so that the formwork elements can be transferred from a vertical state into a horizontal state. The formwork device also comprises a spreading device for spreading apart second end regions of the formwork elements starting from the vertical state of the formwork elements, said second end regions being opposite the articulated connection. The disclosure also relates to: a battery mould comprising two bulkhead partitions and a formwork device according to the disclosure; a method for manufacturing a precast concrete element with the aid of the formwork device according to the disclosure; and a method for preparing the manufacture of a precast concrete element with the aid of the formwork device according to the disclosure.

Provided is a management assistance system capable of saving man-hours and improving safety in construction or civil engineering works by the worker. The system contains a database that stores attribute information for BIM or CIM; a plurality of target markers attached to specific structures; a mobile robot structured to patrol a yard of the building or the civil engineering structure, and to scan the periphery with a scanner, thereby acquiring three-dimensional point cloud data; and a computer apparatus structured to recognize position and posture of the specific structures having the target markers detected by analyzing the point cloud data, and, if the identification information of the target markers acquired by the computer apparatus is corresponded to an existing object stored in the database, the information regarding the existing object is updated with reference to the position and the posture of the specific structure recognized by the computer apparatus.

A concrete vibrator (1) includes: a vibration generating member (4) that includes a rotating body (3) and generates vibration according to rotation of the rotating body (3); an electric motor (5) that applies a rotational driving force to the rotating body (3); a support member (7) that supports the electric motor (5); and a battery (8) that supplies electric power to the electric motor (5), wherein the battery (8) is disposed above the electric motor (5).

A mobile printing robot system for printing a construction layout. The method addresses a problem that occurs when there is a loss of a tracking lock to an absolute positioning device, such as a total station. In a construction site, a line of sight between a mobile robot and an absolute positioning device may be lost when the mobile robot moves into a shadowed region behind an obstacle, such as a column. The mobile printing robot may use its local sensor data to continue to print until a maximum estimated position is reached. The mobile robot may also provide position updates to the absolute positioning device to aid it to regain a track lock when the mobile robot emerged from the shadowed region.

A mobile printing robot system for printing a construction layout. The method addresses a problem that occurs when there is a loss of a tracking lock to an absolute positioning device, such as a total station. In a construction site, a line of sight between a mobile robot and an absolute positioning device may be lost when the mobile robot moves into a shadowed region behind an obstacle, such as a column. The mobile printing robot may use its local sensor data to continue to print until a maximum estimated position is reached. The mobile robot may also provide position updates to the absolute positioning device to aid it to regain a track lock when the mobile robot emerged from the shadowed region.