The invention relates to a supporting beam of composite structure for ceiling systems which are also of a composite structure and which are made at least in sections of concrete, said supporting beam comprising a support, in particular a steel support, which has a base plate and at least one, preferably two webs which, for this purpose, are arranged at an angle, preferably in a perpendicular manner. The invention is characterized in that a space, which is delimited by the web(s) and the base plate, is filled at least in sections with concrete.

A system for producing reinforcing cages for wind turbine tower segments, wherein a reinforcing cage has in each case substantially horizontally oriented ring segments and substantially vertically oriented stiffening elements. It is proposed that the system has a receiving area which is adapted so as to receive the preferably inner, substantially horizontally oriented ring segments of the reinforcing cage, a first handling robot for supplying and positioning the stiffening elements, and a second handling robot for connecting the ring elements to the stiffening elements.

The invention is an automated machine for reinforcement of piles, pillars, beams, and reinforcing cages in location of construction projects. This machine consists of main elements like loading arms and feeding jaws of longitudinal bars, rotating winch for stirrup and its guides, fixed and moving jaws and welding robot. It can be installed on a specified flat trailer in resting mode and come to an operative mode in project location and will be ready to use. To make reinforcing cages, an automated method for continuous winding of stirrup around longitudinal bars has been applied, and two intelligent welding systems (resistive spot and CO.sub.2 welding methods) have been utilized for joints in this machine.

The invention relates to a device, in particular having: a support structure, which can be driven in a rotary manner about an axis X, a plurality of rods, which are aligned parallel or conically approaching each other, relative to the axis X, and are preferably uniformly distributed around the support structure along a circumference, wherein each of the rods is connected to the support structure by means of two or more spokes, and have a plurality of recesses on the outer side thereof facing away from the support structure which are configured to receive reinforcement material, a number of pokes corresponding to the number of rods can be arranged in a plane perpendicular to the axis X, and the lengths of the spokes are adjustable by motor in a telescoping manner.

The present invention relates to a buckling resistant spring clad bar (BRSCB) to improve lateral confinement of compression system uniformly so as to enable it to (a). applied loads withstand both compression and tension (b). ability to withstand much higher axial compression loads (c). significant improvement in post-elastic behavior due to enhanced ductility without strength degradation. The BRSCB comprises a plurality of bar, a plurality of one-way spring in an embodiment, a plurality of grips, and a plurality of peripheral ties. The system further comprises a plurality of opposing spring in another embodiment. In the opposing spring, one of the springs is wrapped in a clockwise direction and another one in an anticlockwise direction. Both the ends of the bar are covered with the end grip to hold the assembly firmly and to avoid end slippage of the one-way/opposing spring. The multiple bars wrapped with the spring are connected together with the peripheral ties to form desired cage assembly. The cage assembly can be embedded in the concrete structure/suitable medium. Further, spring cladded bars can be housed in sleeve to improve the ductility and impact/shock resistance of the structure.

A concrete reinforcement structure 100 for making a reinforced concrete foundation horizontal beam upright or vertical column comprises a square or rectangular helical coil 101 which is manufactured in a compacted length form and can be pulled out under tension to an extended length, secured within formwork or a trench, and supplemented with additional supporting bars or rods 102-105 prior to having concrete poured into the formwork to form a reinforced concrete foundation or horizontal beam structure. The reinforcement structure can be manufactured on site or can be pre-manufactured in a factory and transported to a construction site.

An erection system for one or more elongated elements, such as structural columns, pre-fabricated reinforcing cages or tower-like structures includes one or more longitudinal lifting bars running parallel with the elongated element's longitudinal direction. The lifting bars are installed within or onto the elongated element through apertures in the element's upper and lower support pieces. A rigging system supports the upper portion of the lifting bar. The lifting bar's lower portion includes external threading to receive an internally threaded load bearing nut. The load bearing nut supports the elongated element's weight onto the lifting bar's lower portion. The upper and lower support pieces stabilize the elongated element with lateral restraint. Removing the load bearing nut and raising the lifting bar up through the support piece's apertures extracts the lifting bar from the elongated element. Adjustable spreader bars separate multiple lifting bars to minimize lateral and bending stresses in the lifting bar.

A retrofitting method for a beam with an opening is disclosed. The retrofitting method provides a hoop cooperated with an inclined stirrup to form a reinforcement set. The hoop is used to enclose the opening; and the reinforcement set may be selectively adjusted according to the distance between the edge of opening and a column face. The retrofitting method and reinforcement set are not only suitable for openings located in the non-plastic hinge zone of the beam, but also suitable for the openings located in the plastic hinge zone.

Techniques for and examples of a partition wall structure of a building are described, including a first shell formed as a first wythe including a first group of stacked elongated beads of extruded building material, a second shell spaced apart from the first shell and formed as a second wythe that has a second group of stacked elongated beads of extruded building material, and at least one structural support having a first portion embedded in the first wythe, and a second portion embedded in the second wythe.

The present invention relates to prefabricated shear reinforcement that is built in the interior of a slab around a column, more specifically to prefabricated shear reinforcement that is capable of having a plurality of bottom and top main bars whose one end extending into a column and a spiral stirrup bent continuously to form a plurality of rectangular shapes surrounding the bottom and top main bars, thereby having excellent fabrication, constructability, and space utilization, providing economical advantages, minimizing labors needed on a construction site, and reducing a period of construction.