33results about How to "Reduce horizontal load" patented technology

The invention discloses a flexible hanging type module building structure which comprises a vertical core cylinder structure. A conversion layer is arranged at the upper end of the core cylinder structure. A plurality of modules with certain spaces reserved in between are hung below the conversion layer. Every two modules adjacent in the vertical direction are connected through a set of hanging rods. The upper end of each hanging rod is movably connected to a ceiling beam of the corresponding upper module. The lower end of each hanging rod is movably connected to a ceiling beam of the corresponding lower module. The hanging rod arranged on the uppermost module is movably connected with the conversion layer. Dampers are arranged between floors of all the modules and the core cylinder structure. By means of the hanging shock absorption technology, the horizontal loads input by the modules to the core cylinder structure are remarkably reduced, and the material consumption of the core cylinder structure is saved. A module building allows substructure interlayer displacement, non-structural elements are prevented from damage, the limit value of substructure interlayer displacement is loosened, and then energy dissipation and shock absorption efficiency is improved. Through the combination of a limiting and buffering device, relative movement between the modules is controlled, and collision is avoided.

The invention provides a synchronous towing, pushing and tunneling device of underground box culvert or pipeline construction, relating the technical field of building construction machinery. The invention solves the technical problems of increasing suitability for a construction field, tunneling length and construction work efficiency. The synchronous towing, pushing and tunneling device comprises a push jack set, a tunneling machine head, a pull jack set and a plurality of cables, wherein the push jack set is arranged in a starting well, a cable reactive wall is arranged in a receiving well, the pull jack set is arranged on the cable reactive wall, at least four horizontal directional holes are drilled between the starting well and the receiving well along a designed axis direction, the cables are respectively laid into the horizontal directional holes, one end of each cable is connected and fixedly locked with the pull jack set in the receiving well, the other end of each cable is fixedly connected with the head of the tunneling machine head, and a cable self-locking mechanism which is used for stopping the cables is arranged on the pull jack set. The synchronous towing, pushing and tunneling device of underground box culvert or pipeline construction is suitable for various sizes of reinforced concrete or steel structure culverts or pipelines with rectangular and circular sections.

A method for constructing prestressed tubular pile includes burying prefabricated pile pointer with mud jacking valve and guide coil at certain depth of underground and connecting prestressed tubular piles to press said pile pointer up to desired depth, connecting mud jacking pipe with said valve and jacketing clasp at top of pile body, using triplet to connect mud jack with said pipe to carry out mud jacking, disassembling triplet and lifting out said pipe, placing precast reinforced concrete cap at top of pile body and connecting it.

The invention is a means to eliminate thermal or pressure walking of a subset pipeline by applying a constant axial force to the pipeline through the interposition of a constant-thrust device between a point fixed to the pipeline and a point on a foundation, which pair of points are otherwise unconstrained relative to each other in the longitudinal direction of the pipeline.

The invention discloses a movable water inlet with a head positioned by adopting an upright post and a buoy. The movable water inlet comprises a pipeline system, a positioning system, a buoy system and a tunnel plugging section, wherein the pipeline system comprises a water taking head, a floating pipe and a flange joint, and is a main water delivery structure for extending the water inlet to a reservoir for taking water; the positioning system is positioned at the front end of the pipeline system, comprises the upright post, a cast-in-place pile, an upright post expansion foundation, an O-shaped steel buoy, a steel frame and a positioning wheel, and is used for fixing the water taking head at the front end of the pipeline system on a plane and at an elevation; the buoy system comprises the buoy, a steel wire rope and a balancing weight, and is used for fixing the floating pipe at a certain depth below the water surface; and the tunnel plugging section is positioned at the tail end ofthe pipeline system, is a water retaining structure, and is also an overflowing channel for water in the pipeline system to flow to a downstream water delivery tunnel along a built-in fixed pipeline of the tunnel plugging section. The movable water inlet has the advantages of flexible water taking point and water taking elevation, good wind wave resistance of a system structure, high automatic degree along with water level rise and fall, and suitability for water diversion and supply projects with high requirements on water quality.

The invention discloses a foundation pit support and construction road integrated structure and a construction method. The integrated structure is an integral structure formed by a foundation pit support structure and a construction road, wherein the foundation pit support structure comprises a plurality of rows of steel pipe piles; the steel pipe piles are inserted into a soil body around a foundation pit; the upper portions of the adjacent steel pipe piles are connected through a structural layer of the construction road; and the upper portions of the steel pipe piles and the structural layer of the construction road form the integral structure. The construction method comprises the steps that firstly, a site is leveled; secondly, surveying and setting out are carried out; thirdly, the steel pipe piles are driven in; fourthly, a first sleeve is sleeved; fifthly, a cover plate and a second sleeve are installed; sixthly, the structural layer of the construction road is poured; and seventhly, a top cover is arranged in a covering manner. The foundation pit support and construction road integrated structure and the construction method have the beneficial effects that the operation form of support excavation is adopted in construction, and the construction period can be effectively shortened. The adopted steel pipe piles, the sleeves, the cover plate and the concrete top cover areall detachable, easy to manufacture and convenient to transport, and development of adjacent underground space is not affected.

The invention relates to an absorption tower, a chimney and a chimney bracket in a flue gas desulfurization device. A combination body of the absorption tower and the chimney is a whole which is formed by connecting and combining the absorption tower, the chimney and the chimney bracket; the chimney is superposed on the top part of the absorption tower; cylindrical shell sections of the chimney are flexibly connected with each other; pipe nipples on the top of the absorption tower are flexibly connected with the cylindrical shell sections of the chimney; the weights of the cylindrical shell sections in the chimney are borne by sections of the chimney bracket; and an upright post of the chimney bracket is connected with a barrel of the absorption tower in positioning connecting modes, such as welding, threading and pivoting and the like into a whole. Compared with a device in which the chimney and the absorption tower are arranged separately, the combination body of the absorption tower and the chimney can reduce the floor area needed by the arrangement of the absorption tower and the chimney and reduce the construction investment and maintenance cost of the combination body of the absorption tower and the chimney.

The invention discloses a fabricated building tower crane attached external suspension type auxiliary supporting structure and a construction method thereof.The fabricated building tower crane attached external suspension type auxiliary supporting structure comprises a main beam, the main beam is welded to the outer surface of a building and connected with a tower crane through a connecting piece, and a horizontal inclined supporting beam is fixedly welded to the side edge of the main beam in the horizontal direction, a vertical inclined supporting beam is fixedly welded to the bottom of the main beam, and the horizontal inclined supporting beam and the vertical inclined supporting beam are fixedly connected with the outer surface of a building. The method has the beneficial effects that the bidirectional triangular statically indeterminate structure is utilized, the tower crane is attached to the horizontal direction and the vertical direction to form bidirectional support, the triangular stable structure is utilized to decompose the stress of the overhanging profile steel of the supporting component, part of the stress is transmitted to the profile steel inclined strut, the profile steel deflection change and the horizontal load are reduced, and therefore the attachment supporting requirement is met.

Disclosed is a flushing method with separated sets for type 5 Link State Advertisement (LSA) in the Open Shortest Path First (OSPF) protocol. All LSAs originated in a network device are separated into S sets with a mapping method in advance. Only one set of LSAs are flushed at first; then another set of LSAs are flushed in order at a flushing interval. The method reduces the instantaneous traffic impact on a network by the LSAs greatly, so the network keeps a low level load. Furthermore, the method guarantees that all LSAs are flushed once every network flush interval, so the OSPF protocol can be implemented normally.

A novel offshore pile anti-stormy-wave device comprises a rubber plate body, a plate body internal inflation matched device, a circular thin-walled steel sleeve and a screw. The rubber plate body comprises a rubber upper plate and a rubber lower plate. The lower surface of the circular edge of the rubber upper plate and the upper surface of the circular edge of the rubber lower plate are connectedinto a whole. The rubber plate body air cavity inflation matched device comprises an inflation nozzle, an eight-square screw nut, an air guide pipe, an air valve switch, an air pressure gauge and aninflation air pump. The novel offshore pile anti-stormy-wave device has the advantages that when a pile body generates great displacement and deformation under the action of horizontal loads, the lower surface of the plate body makes contact with silt and a vacuum negative pressure effect is generated, the anti-stormy-wave device has a stabilizing effect for allowing a high-pile marine building toresist horizontal loads, horizontal displacement is reduced, and compared with other methods, construction operation is rapid and construction cost is low.

The invention relates to a roller type low friction vertical loading system with a tracking function. The roller type low friction vertical loading system comprises a beam, two pulling rods, a hydraulic jack, an actuator, two lower hinging seats. The roller type low friction vertical loading system is characterized in that two upper hinging seats which are respectively hinged to upper ends of thepulling rods are arranged above the beam; each of the two lower hinging seat includes a guide block and a first pin shaft; the lower ends of the two pulling rods are hinged to the first pin shafts ofthe corresponding lower hinging seats; roller mounting brackets are arranged on upper and lower ends of the guiding blocks and two sides of the first pin shafts; a group of rolling shafts are arrangedin each roller mounting bracket; two guide bottom seats are provided; the lower hinging seats are arranged in space between two pressing beams and a bottom beam; the two groups of rollers on an upperpart contact lower ends of the two pressing beams; the two groups of rollers on a lower part contact an upper end of the bottom beam. In the system, when a test component pulls the beam to horizontally shift under the action of a horizontal load, the bottom ends of the pulling rods can follow up the tops of the pulling rods, so that the pulling rods are basically vertical during the test.

The invention provides a spiral cable support. The spiral cable support comprises an upper seat plate, an upper sliding plate, a spherical crown liner plate, a lower spherical sliding plate, a lower seat plate and spiral cables. The upper sliding plate is disposed between the upper seat plate and the spherical crown liner plate, and the upper and lower surfaces of the upper sliding plate are separately matched with the bottom of the upper seat plate and the top of the spherical crown liner plate. The lower spherical sliding plate is disposed between the spherical crown liner plate and the lower seat plate, and the upper and lower surfaces of the lower spherical sliding plate are separately matched with the bottom of the spherical crown liner plate and the top of the lower seat plate. The spiral cables are separately connected with the upper seat plate and the lower seat plate, and the spiral cables are horizontally disposed between the upper seat plate and the lower seat plate. Shear resistant baffle blocks are disposed at the bottom of the upper seat plate, and the spiral cables are in contact with the shear resistant baffle blocks in the axial direction. The space occupancy rateis small, the installation is convenient, the structure is simple, and the inspection and replacement are easy, so that the structure can be simplified and the weight can be reduced by the upper seatplate and the lower seat plate of the support.