48results about How to "Enhanced out-of-plane stability" patented technology

The invention discloses a suspend dome structure multi-prestressed construction method used in construction field. The construction method is that: firstly, a central pressure ring, an upper radial bar and edge elements are arranged on an upper layer; secondly, a lower radial rope, a lower ring rope and a strut are arranged on a lower layer; thirdly, prestress is applied in the structure by stretching the lower ring rope or stretching the lower radial rope or adjusting the length of the strut; fourthly, a ring bar is arranged; fifthly, an external load is applied on the structure. Compared with the structure formed by a traditional method, the suspend dome structure formed by the invention reduces peak pressure of elements with concise force, even changes a part of elements from a pressure bar to a tension bar, avoids instability of elements, at the same time enhances the entire stability of the whole structure and enlarges the ultimate bearing capacity. Furthermore, the invention leads a more even distribution of internal force of the upper layer network shell bar elements, is helpful to the unity of the elements and convenient for design and construction, at the same time, the invention reduces the applied prestress value and reduces construction difficulty.

The invention discloses an end part local elongation type anti-buckling support-beam-column connecting node and relates to an anti-buckling support-beam-column connecting node which is used for solving the problems in the aspects of anti-seismic performance of support and building structures, stability outside the plane of the node, seismic rehabilitation, construction, installation and the like caused by support-node plate bolted connection and node plate-beam column welded connection. An intermediate node plate of a framework node plate is plugged in an open slot on the end part local elongation type node, an intermediate core plate and a local elongation stiffening rib or a local elongation core plate are welded together with the intermediate node plate, the framework node plate is placed on the upper surface of the top flange of an I-shaped steel beam, vertical end plates of the framework node plate lean against each other and prop against the side flange of an H-shaped steel column, and the framework node plate is fixedly connected with the H-shaped steel column and the I-shaped steel beam respectively through a plurality of first and second high-strength bolts. The end part local elongation type anti-buckling support-beam-column connecting node is used for civil construction structures, especially in multi-storey and high-rise anti-seismic, energy-consuming and shock-absorption building structures.

The invention relates to a bottom-hinged-supporting low-damage self-reset shear wall. The bottom-hinged-supporting low-damage self-resetting shear wall comprises a reinforced concrete wall plate, a self-reset wall bottom and a foundation beam; the reinforced concrete wall plate is connected with the upper end of the self-reset wall bottom, the foundation beam is connected with the lower end of theself-reset wall bottom, a connecting plate is arranged in the middle of the upper surface of the foundation beam and provided with a connecting beam hinged joint, and self-reset short support hingedjoints II are arranged on the two sides of the connecting beam hinged joint correspondingly; the self-reset wall bottom comprises a connecting beam and a self-reset short support; an anti-shear key isarranged on the upper surface of the connecting beam, a foundation beam hinged joint is arranged in the middle of the lower surface of the connecting beam, and self-reset short support hinged jointsI are arranged on the positions, corresponding to the two self-reset short support hinged joints II, of the two ends of the lower surface of the connecting beam; and the self-reset short support comprises an inner pipe, an outer pipe, a disc spring and baffles, the disc spring is arranged in the outer pipe, the baffles are arranged at the two ends of the disc spring, the inner pipe penetrates through an inner hole of the disc spring and the baffles at the two ends and are capped at the two ends of the inner pipe through a stop block, and self-reset short support hinged joints III are arrangedat the two ends of the self-reset short support.

The invention discloses an assembly-type ribbed steel plate-shear wall. The problems of poor anti-seismic property and repairing difficulty are solved. The assembly-type ribbed steel plate-shear wallcomprises assembly-type ribbed steel plates, connection plates, frame steel beams and frame columns. The assembly-type ribbed steel plates are connected through bolts, and the assembly-type ribbed steel plates are connected with the frame steel beams through the connection plates and bolts; the frame columns are connected with the frame steel beams but not connected with the assembly-type ribbed steel plates. The prefabrication assembly degrees of all components of the assembly-type ribbed steel plate-shear wall are greatly improved, the anti-seismic property is improved, and meanwhile the assembly-type ribbed steel plate-shear wall is easy to mount, transport and repair and suitable for being widely applied to buildings with walls such as shock-proof walls.

The invention discloses an integral casting process for a reinforced concrete wastewater tank in predrilling engineering. The integral casting process comprises the following steps of a, construction of a foundation and a bedding layer, digging a foundation pit, and casting the concrete bedding layer after determining that the foundation bearing force meets the design requirements; b, manufacturing and installation of reinforced bars, manufacturing and installing on site, wherein the overlapping length of the reinforced bars should not be less than 40 times of the diameter (mm) of each reinforced bar, and the overlapping area of the reinforced bars same in cross section should not be more than 50% of the total area; c, supporting of die plates, binding the die plates into the shapes of the bottom and the wall of a concrete tank; d, casting of concrete, after completing the construction of the reinforced bars and the die plates, carrying out the casting construction of concrete, firstly casting the bottom of the concrete tank and the wall with the height less than 1m, leveling the top of the wall of the concrete tank, and reserving no step to complete the first time of casing; casting the residual wall of the concrete tank in at least one hour after completing the first time of casting; and e, removal of the die plates, removing the die plates when the strength of the cast concrete being more than 1.2MPa. The integral casting process has the advantages that the construction time of the wastewater tank in the predrilling engineering is reduced, the construction period of the whole predrilling engineering is shortened, the condition of drilling machines not waiting for well fields is ensured, the construction seams are not reserved in the construction, and the leakage problem caused by the construction seams is avoided.

The invention discloses an SCS concrete filled steel tube pier reinforced by a stirrup and a stiffening rib at an end, which comprises an outer steel tube, an inner steel tube sleeved in the outer sleeve tube, a top reinforcing structure, a bottom reinforcing structure and a concrete structured poured and formed by concrete in a cavity between the outer and inner steel tubes. The inner steel tube is circular. The inner and outer steel tubes are coaxially arranged. The top reinforcing structure comprises a plurality of PBL stiffening ribs I and a stirrup I arranged from top to bottom. The bottom reinforcing structure comprises a plurality of PBL stiffening ribs II and a stirrup II arranged from top to bottom. The transverse width of each PBL stiffening rib I and each PBL stiffening rib II is smaller than the distance between the outer and inner steel tubes arranged at the position. The SCS concrete filled steel tube pier reinforced by the stirrup and the stiffening rib at the end is simple in structure, reasonable in design, convenient to construct, lower in construction cost, excellent in mechanical performance and good in using effect, and various problems of current concrete filled steel tube piers can be effectively solved.