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序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
141 Cable stayed bridge construction US541821 1990-06-21 US5060332A 1991-10-29 David R. Webster
A cable stayed bridge which includes a pair of towers on either side of a gap and a roadway deck extending across the gap between the towers and cable stays fanning out from the top of each tower to separate longitudinally spaced load-bearing points on the decks such that a pair of cable stays extends from each load-bearing point on the deck to the tops of the respective towers with a span between towers 10 to 20 times tower height above the deck.
142 Sulfur removal process US91485 1987-08-31 US4784754A 1988-11-15 Howard L. Fong; David A. Van Kleeck
Froth or foam sulfur particle accumulation during the recovery of sulfur particles from a zone containing regenerated redox solution is reduced by agitating and removing the sulfur slurry in a plurality of streams, including at least one stream at a short distance from the top of the solution in the zone and at least one stream from the bottom of the zone and optionally recombining the streams after removal.
143 Method of forming a composite structural member US915900 1986-10-06 US4710994A 1987-12-08 Hiroo Kishida; Hirofumi Takenaka
A composite structural member is formed by fixedly mounting a prestressed concrete slab having compressive stress acting along pc steel wires buried therein on a beam. The compressive stress is thereafter released from the prestressed concrete slab by loosening a turnbuckle or the like provided in the prestressed concrete slab, so as to produce in the beam a tensile force acting in the same direction as the direction of the compressive stress acting in the prestressed concrete slab and a bending moment.The slabs, placed in a side by side and end to end configuration, have undulated end surfaces spaced apart on a beam. The ends abut dowels fixed to the main beam. The space defined by the end surfaces with the dowels is filled with mortar to integrally fix the slab to the beam.
144 Concrete train paving apparatus and method US917784 1986-10-10 US4706317A 1987-11-17 Eugene A. Horstketter
Apparatus and method for pouring concrete on a bridge is disclosed employing rail-mounted pouring and related equipment and separate rail-mounted rolling pipe for attachment to a concrete source system located on an approach to the area to be poured. The equipment rail and rolling pipe rail are both mounted on stable overhang brackets located outboard of the area to be poured. A power tractor is also mounted in the approach area on the rolling pipe rail and straddles the vertical reinforcing members located on the outside edges of the bridge deck. The tractor pushes the rolling pipe and permits a flexible hose connection to a stationary concrete pump located on the approach. A spring-loaded telescoping channel connection allows the trolleys on the tractor and the idler trolleys supporting the rolling pipe to be clamped securely to the rail.
145 Method for erecting a bridge superstructure of prestressed concrete and launching girder for performing the same US885411 1986-07-14 US4692955A 1987-09-15 Horst Kinkel
A method is described for the sectional erection of a superstructure of prestressed concrete for a bridge with a launching girder carrying the formwork for the superstructure and being movable from one concreting section to the other. The process is characterized by a movement of the launching girder to the next concreting section while the previously concreted and prestressed superstructure is supported via bearings by the launching girder, which in turn is supported by the bridge supports via further bearings.
146 Method for erecting a bridge superstructure of prestressed concrete and launching girder for performing the same US635798 1984-07-30 US4660243A 1987-04-28 Horst Kinkel
A method is described for the sectional erection of a superstructure of prestressed concrete for a bridge with a launching girder carrying the formwork for the superstructure and being movable from one concreting section to the other. The process is characterized by a movement of the launching girder to the next concreting section while the previously concreted and prestressed superstructure is supported via bearings by the launching girder, which in turn is supported by the bridge supports via further bearings.
147 Method and apparatus for constructing elevated structures US704500 1985-02-22 US4647257A 1987-03-03 Alces P. Robishaw
A method and apparatus for forming elevated structures. A first construction component is emplaced at a construction site, supported by an underlying earth formation. A second construction component is locked in cantilevered relation to the first such component. A support is extended downwardly from the second component, distal the first component, into load bearing engagement with the earth formation, whereafter the second component is interlocked to the support. The ends of the longitudinal components have improved locks in which a connector of the male lock can be passed through a receiving bore in a female lock only if oriented in a particular angular position, whereafter, if rotated to a different angular position, it cannot be withdrawn from the receiving bore. Similar locks are provided for interconnecting such longitudinal components in side-by-side relation via transom components. At least some of the ends of the longitudinal components have guides for the supports, with an improved manner of interassociating such guides with the remainders of the components.
148 Bridge truss, bridge span including such trusses, and method of constructing the truss US679554 1984-12-07 US4642830A 1987-02-17 Pierre Richard
A prefabricated three-dimensional truss structure for a bridge, or the like, the truss formed from bars arranged to define triangular or rectangular patterns. The bars are formed from prestressed, high-strength concrete that are connected at their ends with assembly blocks that are prestressed, the prestress being preferably provided by the cables that prestress the bars, and which terminate at the blocks. A plurality of such unit trusses can be assembled to provide a truss structure for a bridge span, and the trusses can assume a wide variety of configurations.
149 Adjustable formwork for concrete structures US711614 1985-03-14 US4624440A 1986-11-25 Wilhelm Buchler
An adjustable formwork for forming the corner surfaces of concrete structural members includes a first and a second formwork unit. Each formwork unit extends transversely of the other and has a surface which forms one of the concrete surfaces of the concrete structural members and these surfaces define a corner junction line about which the formwork units can be pivotally adjusted relative to one another. One of the formwork units is provided with a circular-arc shaped guide slot and the other has a pair of spaced guide pins secured to it with the pins being movably guided in the slot. The center point of the arc of the slot is located on the corner junction line. The interengagement of the pins with the slot affords a link type guidance between the formwork units. As a result, forces are transmitted at the corner junction line only in the assembly state so that the line lies practically in the plane of the formwork surface which define the concrete surfaces. The forces which occur during loading of the formwork units are transmitted in the region of the junction line between the formwork supports whereby the forces are carried away along the shortest path.
150 Apparatus for mounting rails on a rigid rail beam US419425 1982-09-17 US4512560A 1985-04-23 Peter Molzer; Jurgen Pollner; Nicola Topic; Gregor Trummer; Rudolf Zurek
An apparatus for mounting relatively small and deformable elongated rails on a relatively large, generally horizontal, and nondeformable elongated rail beam has a stiff but limitedly elastically deformable elongated jig. A plurality of clamps spaced longitudinally along the jig are engageable with the rail for locking onto the rail at respective longitudinally spaced locations. Respective vertical and horizontal jacks transversely engage between the clamps and the jig for elastically deforming the jig into a desired shape relative to the rail beam. Holders and the like are provided on the jig for securing the deformable rails to the rail beam in predetermined positions relative to the deformed jig. If the rail section is to be curved in any direction the jig is appropriately deformed relative to the rail beam so its various holders and mounting fixtures lie on the appropriate curve. Such elastic deformation of the jig therefore perfectly positions these rail holders. The clamps include respective horizontal and transverse clamp beams at the locations, respective jaws on the beams, and respective hydraulic actuators for locking the jaws on the rail beam at the respective locations and thereby solidly arresting the transverse beams on the rail beam at the respective locations.
151 Method and device for erecting building structures such as bridges, using pre-fabricated concrete beams US389083 1982-06-16 US4497153A 1985-02-05 Eberhard Muller
Proposed is a method for the erection of structures, such as bridges, that display pre-fabricated concrete beams, according to which the individual pre-fabricated beams are produced, on the spot, on a feed rigging within the corresponding work area of the structure, in a heated and laterally tiltable form. After removal from the form, the thusly produced pre-fabricated beams are transferred sidewardly into their final position by means of gantry cranes. During concretizing of the individual pre-fabricated beams, flexure of the feed rigging carrying the form is equalized in continuous fashion, in correspondence with the progressing, concretizing process, by transfer pumping of ballast liquid. Correspondingly with progression of construction, the feed rigging displaying a freely suspended cantilever is transferred in progressive fashion onto support girders of the structure that have been prepared beforehand, just like the gantry cranes, which can be pretransported from the support girders supporting it to the next support girders. Also capable of being equalized are different inclinations of the support girders, such as curvatures in the ground plane of the structure, for example the access to bridges.
152 Mobile platform or platform to be used as floating workshop US181242 1980-08-25 US4362120A 1982-12-07 Cornelis Dekkers
The invention relates to a platform (1) having a platform (1) and at least three legs (2) movable in vertical direction with respect to the platform (1), the legs (2) being connected to the platform (1) by a lifting and locking mechanism (8,9,17,18,14) having locking bars (8,9) for holding the platform (1) with respect to the legs (2) and lifting jacks (17,18,14) for moving the legs (2) with respect to the platform (1) both locking bars and lifting jacks having elements (8,9,17,18) which can move in and out of engagement with the legs with clearance in vertical direction in recesses (11), safety structure being provided to check the completion of the movements of the elements, the safety structure having a time relay (t.sub.1,t.sub.2) in the control circuit of the jack system which relay (t.sub.1,t.sub.2) interrupts the circuit when after a set time which is shorter than the time needed to traverse the clearance in recesses (11), said elements ( 8,9,17,18) have not reached their final positions, while a recorder (12,13,19,20) of all final positions of the elements (8,9,17,18) also interrupts the circuit when the elements (8,9,17,18) have reached their final positions and also switches off the time relay (t.sub.1,t.sub.2).
153 Method of erecting a bridge girder US55320 1979-07-06 US4320548A 1982-03-23 Hiroshi Tada; Wataru Abe; Toshiro Nozu; Keizo Ishikawa
This invention relates to a method of bridge erection i.e., an arrangement for erecting a bridge girder. More particularly, it is concerned with an erection method, in which a bridge girder is smoothly extruded, together with a movable member, on a temporary support member which is disposed on an upper shoe until the girder reaches a position near the installation position, whereupon a coupling member for connecting the upper shoe with a sole plate which is pre-fixed to the girder, is attached to the sole plate, then in this condition the girder is again moved forward up to the installation position while pushing the end portion of the temporary support member on the upper shoe by the coupling member so as to displace the temporary support member and the movable member by the coupling member, whereby the bridge girder and the support structure are fixed in engagement with each other without the need to lift the bridge girder.
154 Concrete vibrator machine US86416 1979-10-19 US4256415A 1981-03-17 Murray A. Rowe; Robert T. Conway; Herbert C. Glesmann; Richard W. Kruse
A concrete vibrator machine wherein the vibrators thereof are mounted on individual supporting structures that are adjustable longitudinally of the main frame of the machine, and wherein the vibrators are raised and lowered on their individual supporting structures in such a manner that if the vibrators strike an obstruction during lowering thereof, lowering of the vibrators may stop without damaging stress being placed thereon.
155 Method of constructing reinforced concrete bridges US859529 1977-12-12 US4192120A 1980-03-11 Andre J. Richard; Philippe M. Delmotte; Pierre A. Parthoens
In a method of constructing a reinforced concrete bridge a supporting archs erected which comprises a cocked center part of which forms a supporting reinforcement intended to be incorporated in the concrete of the final bridge structure. Shuttering is placed in position on the arch and the concrete poured to embody the supporting reinforcement and constitute the deck of the bridge. The resultant deck is formed by a ribbed slab, by girders connected by a slab, or by at least one box. After the concrete has hardened the remaining exterior part of the arch is removed, and if required additional reinforcement may be embodied in the concrete.
156 Method and apparatus for erecting a bridge structure US796723 1977-05-13 US4141668A 1979-02-27 David J. Engel
An apparatus for erecting a bridge structure which is adapted to be disposed above a body of water includes an elongated bridge member and a support tower pivotably mounted upon the bridge member. The support tower includes a caisson which has a jacking member telescopically mounted therein at its upper end and the support tower is further provided with a plurality of pile sleeves mounted upon its lower end, such that the support tower may be anchored to the surface underlying the body of water. The bridge structure has a gas flare line and a gas flare tip associated therewith.A method for erecting a bridge structure above a body of water includes the steps of transporting a prefabricated bridge structure to a location adjacent an existing structure, pivoting a support tower associated with the bridge structure until it is substantially perpendicular to the longitudinal axis of the bridge structure, connecting one end of the bridge structure to the existing structure while the support tower is still in a spaced relationship with respect to the surface underlying the body of water, extending the support tower until it is in contact with the surface underlying the body of water, and then anchoring the support tower to the underwater surface. A gas flare line and gas flare tip is installed on the bridge structure.
157 Self-propelled concrete vibrator apparatus US851361 1977-11-14 US4128359A 1978-12-05 Charles R. Cooper, Jr.; Charles K. Ellis; David Starcher
A self-propelled concrete vibrator machine adapted for movement along a pair of spaced-apart guide rails which are positioned on the bridge centering upon which the concrete is to be poured. The concrete vibrator machine is adapted to be moved along the guide rails closely adjacent the forward end of a concrete finishing machine. The vibrator machine comprises first and second drive units mounted on the guide rails for selective movement on the guide rails in either forward or reverse directions. A truss assembly is secured to the rearward ends of the drive units and extends therebetween over the area upon which the concrete is being poured. A plurality of vertically disposed and horizontally spaced hydraulic vibrators are mounted on the rearward end of the truss assembly. The hydraulic vibrators are vertically movably mounted relative to the truss assembly so that the hydraulic vibrators may be moved from an upper position above the concrete to a lowered position wherein the hydraulic vibrators are positioned in the concrete. Apparatus is provided for controlling the vibrational speed of the hydraulic vibrators as well as the length of time the vibrators are in the concrete. The hydraulic vibrators may be also moved horizontally when in their upper position so that a reduced number of hydraulic vibrators may be employed. The vibrator machine is moved along the guide rails closely adjacent the forward end of the finishing machine so that the concrete may be vibrated at predetermined spacings for predetermined lengths of time immediately prior to the concrete being finished by the finishing machine.
158 Stage construction of an elevated box girder and roadway structure US789223 1977-04-20 US4123485A 1978-10-31 Man-Chung Tang
An elongated elevated box girder and roadway structure is constructed in a number of individual elongated sections with the support structure and formwork being reused, in turn, for each section. Each section is constructed in a number of stages. Initially, a support structure is built up from grade or is mounted on permanent upright members of the structure being formed, such as piers or abutments. Formwork for the bottom slab and the upright outside webs of the box girders are placed upon the support structure. Concrete is poured into the formwork for the bottom slab and webs and, after being allowed to set for a given period, and posttensioned, if necessary, the formwork is stripped and the support structure is removed. The support structure and formwork are then moved and set up for the next section to be constructed. The roadway slab includes the top slab of the box girder and cantilever sections extending laterally outwardly from each side of the top slab. The roadway slab is supported from the previously poured bottom slab and webs It can be poured in one or two steps, pouring the entire roadway at one time or first pouring the top slab and then, after supporting the formwork of the cantilever sections from the top slab, pouring the cantilever sections. After the concrete for the roadway sets for a given period, its formwork is stripped, moved and set up for pouring the next section.
159 Improvements in concrete roadway-slab forming and form-elevation adjusting means US802564 1977-06-01 US4123031A 1978-10-31 Robert W. Hyre
Concrete-slab forming means and more particularly improvements in means for supporting and adjusting the elevation of the forms for concrete roadway slabs which bridge the space between spaced-apart pairs of in-place girders. The forming means per se comprises a preferably plywood deck or decking disposed at a predetermined elevation and which extends between the girder pairs and is laid directly on joists in turn supported on purlins, (preferably "split" or spaced-apart purlins), extending between said girders. The supporting means therefor which also must support the concrete deck load comprises a plurality of form supporting assemblies disposed at predetermined spacings from one another along the length of the girders of the pairs thereof, and which are so constructed as to be capable, by extending substantially vertically between the foot flanges of each two parallel girders and the ends of the purlins, of supporting and adjusting the elevation of said purlins, joists, plywood deck and and thereby of the concrete deck load.
160 Arrangement for the sectional cantilever projection of multi-panel bridge supporting structures of steel or prestressed concrete US769729 1977-02-17 US4103861A 1978-08-01 Wilhelm Buchler; Gotthard Muller; Hans-Joachim Mende
This invention relates to an arrangement for projecting cantilever sections of multi-sectional bridge supporting structures of steel or prestressed concrete forming the superstructure of the bridge which is supported on bridge piles. The arrangement includes at least one traveling auxiliary beam movably carried on and arranged above the superstructure for spanning between superstructure sections. Two concreting scaffolds each comprising a supporting part having crossbeams and rollers are arranged above the superstructure and carry a platform which is arranged below the superstructure for carrying casings to extend the projecting superstructure sections. A transport device is movably carried on the auxiliary beam and supports the concreting scaffolds for transport between superstructure sections and from the end of a completed section to a bridge pile for beginning construction of a new section. The supporting part of each of the concreting scaffolds has longitudinal girders arranged adjacent the auxiliary beam and crossbars connected to the girders arranged below the auxiliary beam. A pair of supporting blocks for supporting the auxiliary beam on the next succeeding pile are arranged so as to be alternately retractable to allow the supporting part of the scaffolds to pass the bridge pile, and the platform of the scaffolds comprises a bending resistant lattice of crossbeams and girders with means for forming openings therein to allow the platform to pass the pile as the scaffold is transported to the next section.
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