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

The invention discloses a continuous rigid frame bridge based on a steel truss-concrete slab composite beam. The continuous rigid frame bridge comprises a bridge substructure and the steel truss-concrete slab composite beam supported by the bridge substructure. The steel truss-concrete slab composite beam comprises a steel truss and a concrete bridge deck which is laid over the steel truss. The steel truss comprises one or more steel truss units; each steel truss unit is an inverted-triangle truss girder, wherein the inverted-triangle truss girder is composed of two upper chords, a lower chord, a left line of diagonal web members and a right line of diagonal web members, each upper chord comprises a first horizontal steel plate and a plurality of first vertical perforated steel plates evenly laid on the first horizontal steel plate, an upper chord transverse connecting system connected between the two upper chords comprises a plurality of upper chord transverse connecting pieces, and each upper chord transverse connecting piece comprises a second horizontal steel plate and a plurality of second vertical perforated steel plates evenly laid on the second horizontal steel plate. The continuous rigid frame bridge is simple in structure, reasonable in design, convenient to construct, good in stress performance, good in using effect and capable of effectively solving various problems existing in an existing continuous rigid frame bridge.

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 energy dissipation shear wall with built-in trusses and a construction method of the shear wall. The energy dissipation shear wall comprises shear wallboards, the trusses are arranged between the shear wallboards, an edge frame is arranged on the peripheries of the shear wallboards, the trusses are fixedly connected with the edge frame, the edge frame comprises an upper edge frame beam, a lower edge frame beam, a left edge frame column and a right edge frame column, grouting sleeves are pre-buried on the left side of the upper edge frame beam and the left side of the left edge frame column, the right edge frame column is provided with transverse steel ribs extending out of the right edge frame column, and vertical steel ribs are extending out of the lower edge frame beam are arranged on the lower edge frame beam. The trusses are arranged in the steel rib concrete shear wallboards to have a certain reinforcing function on the shear wallboards, anti-seismic lateral rigidity is larger than that of a conventional steel rib concrete shear wall, and good energy-dissipation and anti-seismic functions are achieved. The built-in trusses divide the shear wallboards into a plurality of small wall columns, during large earthquakes, energy is dissipated through local yielding, stability outside the whole plane is enhanced, and the shear wallboards are moved through the trusses to achieve the anti-seismic function as a whole.

The invention discloses a fabricated beam-column connecting joint based on a corrugated plate anti-side special-shaped column, and belongs to the technical field of structural engineering. The beam-column connecting joint is composed of the corrugated plate anti-side special-shaped column, an I-shaped beam with an end plate, and a beam-column column connecting part with a protruding column. The manufacturing and the welding of steel elements are completed in a factory, so that the welding and the element quality are easy to control; and only steel components need to be hoisted and connected through high-strength bolts on a construction site, so that the construction efficiency is high. According to the fabricated beam-column connecting joint based on the corrugated plate anti-side special-shaped column, the connecting joint has the advantages of mechanical property and practical property at the same time: in the aspect of the mechanical property, the bearing capacity and the lateral stiffness of the special-shaped column are fully utilized, and the connecting joint has good anti-seismic property; and in the aspect of the practical property, a rapid assembly concept is emphaticallyachieved, and the protruding column problem in a house is solved.

The invention discloses an SCS (square concrete-filled steel) tube pier column which comprises a square steel tube, a circular steel tube, four stiffening rib plate groups and a concrete structure, wherein the circular steel tube is mounted in the square steel tube in a sleeving manner; the four stiffening rib plate groups are arranged on four inner side walls of the square steel tube respectively; the concrete structure is formed by pouring concrete filled in a cavity between the square steel tube and the circular steel tube; each stiffening rib plate group comprises a plurality of longitudinal stiffening ribs that are arranged in parallel; the longitudinal stiffening ribs are perpendicular to the inner side walls of the square steel tube where the longitudinal stiffening ribs are located respectively; all the longitudinal stiffening ribs in the four stiffening rib plate groups have identical structures and sizes; the square steel tube and the circular steel tube are arranged coaxially; and the transverse width of each longitudinal stiffening rib is less than a distance between the square steel tube and the circular steel tube where the longitudinal stiffening rib is arranged. The pier column is simple in structure, reasonable in design, convenient to construct, lower in construction cost, good in mechanical property and good in use effect, and can effectively solve the problems existing in the existing square concrete-filled steel tube structure.

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 a steel pipe-profile steel special-shaped column with double corrugated plates and a side-resistant double-column bearing function, and belongs to the technical field of structural engineering. The column comprises a square steel pipe column, a profile steel column, and corrugated plates. The welding part of the special-shaped column is completed in a factory, so that the welding quality is easy to control; and only the prefabricated special-shaped column needs to be hoisted and connected with other elements on a construction site. The corrugated plates can provide enough out-of-plane rigidity with low thickness in the manufacturing, transportation and construction processes of the special-shaped column, so that the steel consumption of components is effectively reduced, and the economy is improved. According to the steel pipe-profile steel special-shaped column with the double corrugated plates and the side-resistant double-column bearing function, the special-shaped column has the advantages of mechanical property and practical property at the same time: in the aspect of the mechanical property, the height of the anti-side section of the special-shaped column is increased by adopting a double-corrugated-plate structure, so that the anti-side capacity of the special-shaped column is improved; and in the aspect of the practical property, the problem of protruding columns in a house can be effectively solved.

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 discloses an SCS (square concrete-filled steel) tube pier column which comprises a square steel tube, a circular steel tube, four stiffening rib plate groups and a concrete structure, wherein the circular steel tube is mounted in the square steel tube in a sleeving manner; the four stiffening rib plate groups are arranged on four inner side walls of the square steel tube respectively; the concrete structure is formed by pouring concrete filled in a cavity between the square steel tube and the circular steel tube; each stiffening rib plate group comprises a plurality of longitudinal stiffening ribs that are arranged in parallel; the longitudinal stiffening ribs are perpendicular to the inner side walls of the square steel tube where the longitudinal stiffening ribs are located respectively; all the longitudinal stiffening ribs in the four stiffening rib plate groups have identical structures and sizes; the square steel tube and the circular steel tube are arranged coaxially; and the transverse width of each longitudinal stiffening rib is less than a distance between the square steel tube and the circular steel tube where the longitudinal stiffening rib is arranged. The pier column is simple in structure, reasonable in design, convenient to construct, lower in construction cost, good in mechanical property and good in use effect, and can effectively solve the problems existing in the existing square concrete-filled steel tube structure.

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.

The invention discloses a steel structure cooling tower with a cross plane truss system. A tower body of the cooling tower is formed by connecting plane trusses in a combined mode, and the plane trusses include inclined trusses in two directions and horizontal trusses; the horizontal trusses and the inclined trusses in the two directions form a series of isosceles triangular grids, and out-of- plane supports of the plane trusses are arranged in the isosceles triangular grids; reinforcing ring trusses are arranged on the inner side of the tower body at certain height intervals; and widening platform trusses are arranged on the outer side of the lower part of the tower body. Compared with a traditional cooling tower with a steel bar and reinforced concrete structure, the cooling tower with the cross plane truss system and the steel structure has advantages that the force performance is good, the self-weight is low, construction is convenient, the construction period is short, and the construction cost is low; in addition, the cooling tower with the cross plane truss system and the steel structure makes full use of the in-of-plane rigidity of the plane trusses, thus the tower body ofthe cooling tower has good out-of-plane stability; by arranging supports in the out-of-plane direction of the plane trusses, the stability in out-of-plane of trusses can be improved, and the computinglength of out-of-planes of truss chord members is decreased; and through reasonable structure arrangement, the mechanical property of structure parts is fully exerted.