601 results about "Joist" patented technology

A deck clip that may be used in the construction of a deck and a method of using the same is provided. The deck clip may include a grip and a spacer. Portions of both the grip and the spacer may be received within the grooves of deck boards used in decks. Thus, the deck clip may be selectively affixed to deck boards. Further, the deck clip may be configured to receive a fastener for anchoring the deck clip to joists. Thus, the deck clip may be used to couple deck boards to joists. Advantageously, the deck clip may be used to construct a deck without exposed fasteners, the geometry of the spacer may assist with creating a consistent gap between adjacent deck boards, and the grip may comprise saw-tooth shaped surfaces for improved retention of the deck boards.

The present invention provides a support assembly and a tunnel boring machine. The support assembly is applied to the tunnel boring machine and includes: a base; a drive assembly, one end of which is connected to the tunnel boring machine and the other end of which is connected to the base, for driving the base to move; a support plate, which is arranged on the base and is used to support the anchor net; and a support beam assembly, which is arranged on the base and is used to lift and support the top beam. The present application integrates the support beam assembly on the support assembly, improves the functional integration of the tunnel boring machine, saves equipment space, improves the production efficiency of the equipment, and saves the production cost of the equipment. In addition, the support plate and the support beam assembly share a set of drive assemblies, thus saving a set of drive assemblies. Compared with the separate arrangement of temporary support and support beam device, the number of components is greatly simplified, and the contradiction that the temporary support and support beam device cannot be installed on the tunnel boring machine at the same time due to the overlapping installation positions of the temporary support and the support beam device is resolved, providing more operating space for the anchoring operation and beam erection operation of the tunnel boring machine.

A structural support device for supporting a joist relative to a support includes a joist engagement portion configured to engage the joist and be secured directly to the joist. A support engagement portion extends from the joist engagement portion and is configured to engage the support and be secured directly to the support. At least one hook extends from one of the joist engagement portion and support engagement portion and is configured to locate and hold the structural support device on the support prior to securing the support engagement portion to the support with a fastener.

The present invention discloses a support system for a roof slab bottom formwork containing beams, including a roof slab bottom formwork support part and a beam bottom support part. The roof slab bottom formwork support part is composed of a main beam, a secondary beam and an adjustable support column to form a beam support structure, and the beam bottom support part has a beam bottom formwork support beam; the beam bottom formwork support beam forms a hanger structure through two screw-type hangers distributed at both ends thereof, and the beam bottom support part is also supported by the adjustable support column. The beneficial effects of the present invention are that the workload of erecting the support system is significantly reduced, the erection cost is saved, and the erection efficiency is improved; and by taking advantage of being closer to the top surface of the roof slab bottom formwork support, the convenience of height adjustment operation of the beam bottom formwork support part and the construction efficiency are effectively improved, thereby achieving the purpose of reducing construction costs from two aspects.

A deck frame includes at least one perimeter support member that supports a plurality of support joists. A post blocking assembly is disposed between adjacent support joists and supports a railing post. The post blocking assembly includes an angle bar, a first side plate secured to a first end of the angle bar and a second side plate secured to a second end of the angle bar opposite the first end. A first nut is threaded to a first bolt that extends through the first side plate, and a second nut is threaded to a second bolt that extends through the second side plate. The first side plate defines a first anti-rotation through hole and the second side plate defining a second anti-rotation through hole.

A fastening assembly for decking having a plurality of joists with planks positioned on the joists includes a spacer for positioning on a joist between adjacent planks, the spacer having a predetermined overall thickness so that the spacer serves to maintain a desired spacing between the planks. The fastening assembly includes at least one gripping member, the gripping member including opposed arms and a web that interconnects the arms, with the spacer being receivable between the arms, the spacer and the arms being configured so that when the spacer is received between the arms, the arms are driven away from each other so that free ends of the arms bear against respective adjacent sides of said adjacent planks to secure the planks to the spacer.

A modular decking system comprising at least one extendable joist, at least two extendable beams each connected to the at least one extendable joist, and at least one extendable bearer supporting the at least one extendable joist and the at least two extendable beams. The at least one extendable bearer is connected to the at least one extendable joist. Each extendable joist, each extendable beam, and each extendable bearer are extendable and retractable relative to one another.

The utility model relates to the technical field of bridge construction, discloses an auxiliary device for pushing, sliding and falling a steel box girder, and solves the problem that the pushing precision is influenced by impact force generated when the steel box girder is hoisted to pushing and sliding equipment. When the steel box girder is hoisted through the cushion block, the damping spring, the hydraulic cylinder and the hydraulic rod, the steel box girder is aligned to the upper portion of the cushion block and then gradually moves downwards, after the steel box girder makes contact with the cushion block, the damping spring absorbs most of energy firstly, and therefore impact force directly transmitted to the joist is reduced, and when the impact force exceeds the natural shock absorption capacity of the damping spring, the joist is lifted. The hydraulic cylinder and the hydraulic rod start to play a role, extra energy is absorbed by controlling the pressure of the hydraulic system, it is guaranteed that the steel box girder falls more softly, displacement caused by impact force is avoided, and precise abutting joint of pushing is achieved.

The utility model discloses an anti-shake double-channel steel joist structure, which comprises a horizontally arranged support beam, the support beam comprises two channel steels of which webs are vertically arranged and openings are opposite, and opposite semicircular grooves are correspondingly formed in flanges on the upper and lower sides of the two channel steels; opposite first connecting holes are formed in the positions, corresponding to the two sides of the semicircular groove, of webs of the two steel channels. A dragging and supporting lead screw is vertically arranged between the semicircular grooves of the two steel channels, a disc adjusting nut is installed on the dragging and supporting lead screw in a threaded fit mode, and the disc adjusting nut abuts against the upper side of the supporting beam. Lead screw fastening bolts are arranged in the first connecting holes in a penetrating mode, under the fastening effect of the lead screw fastening bolts, the flanges of the two pieces of channel steel can be close to each other, and the groove walls of the semicircular grooves of the two pieces of channel steel are tightly attached to the dragging and supporting lead screw. The supporting structure is simple in structure and convenient to construct, and has good supporting stability and safety.

The utility model discloses a concrete frame column formwork fastening system capable of being rapidly assembled and disassembled. Convenient, accurate and programmed erecting of a square hoop is achieved. Four I-shaped steel fastening drag hook rods are in lap joint end to end in a staggered mode to form a square hoop of a concrete frame column formwork, and a flange plate on one side of each I-shaped steel fastening drag hook rod is connected to a wooden ridge of the formwork in an abutting mode. A positioning pin is inserted into a pair of through holes with internal threads correspondingly formed in an upper web plate and a lower web plate of a head hook body of one fastening hook rod and a long-strip-shaped bolt hole formed in a tail web plate of the other corresponding fastening hook rod, and preliminary positioning of the four I-shaped steel fastening hook rods at the formwork fastening position is achieved. Long-strip-shaped conical wedges are synchronously beaten into long-strip-shaped bolt holes in the outer sides of the lap joint positions of the two fastening drag hook rods in the diagonal direction; and finally, the positioning pin at the head of the hook is taken out, and an upper jackscrew and a lower jackscrew are screwed into the threaded through hole in the head of the hook, so that the lap joint of the two fastening drag hook rods is fixed in a propping manner.

The invention relates to a guy cable type bracket for 0 # block construction of a single-tower wide tower beam consolidation area. The guy cable type bracket comprises two trusses, a plurality of main bailey beams, a guy cable anchor box, a plurality of guy cables and a plurality of distribution beams. The two trusses are fixedly arranged on the two side walls of the bridge tower in the bridge direction respectively, the multiple main bailey beams are erected on the two trusses on the two sides of the bridge tower in the transverse bridge direction respectively, and the joists are welded between the bottom faces of the ends of the main bailey beams on the two sides of the bridge tower in the bridge direction respectively in the bridge direction. The inhaul cable anchor box is fixedly arranged at the top of the bridge tower; and an inhaul cable is connected between each of the two ends of each joist and the anchor box. The inhaul cable is arranged to buckle and hang the bracket cantilever, the bracket structure is good in balance and stability, the construction safety can be guaranteed, the cable force of the inhaul cable can be adjusted in real time according to the load change and deformation condition of the bracket in the construction process, and the linear precision of the 0 # block can be guaranteed.

A textured barrier substrate includes a substrate having a first side and a second side opposing the first side. One or more protrusions extend from the second side. The first side is configured for securing to a first building structure, such as a joist, and the protrusions are configured to contact and support a second building material, such as flooring.

A joist assembly system that is structured for dynamic retrieval of components, dynamic and precise positioning and location of retrieved components, assembly of the components to form a joist, and delivery of the assembled joist. The joist assembly system has a plurality of material handling systems, a plurality of welding systems, and a rigging table system. The material handling systems are structured to load and position the components such as chords and webs onto the rigging table. The rigging table in turn supports the chords or webs. Subsequently, the plurality of welding systems weld the webs to the chords to form the joist.

The invention discloses a prestressed composite beam structure and a mounting method, and relates to the technical field of bridge construction. The device comprises a bridge concrete abutment, a plurality of top beams are evenly and fixedly connected to the bottom of the bridge concrete abutment, supporting columns are symmetrically and fixedly connected to the bottoms of the top beams, triangular tables are fixedly connected to the opposite sides of every two adjacent supporting columns, and a prestressed concrete abutment is erected on the tops of the triangular tables. When the load received by the bridge concrete abutment is transmitted to the prestressed concrete abutment through the top beam and the diagonal bracing steel beam, part of the load borne by the prestressed concrete abutment is counteracted through tensioning of the prestressed tendons; and meanwhile, the stress rod is pushed to drive the supporting plate to convert partial load borne by the supporting beam into collision force between the supporting plate and the prestressed concrete base station, so that the load applied externally can be conveniently and effectively dispersed to the supporting columns, the prestressed tendons and the supporting plate for bearing, and the bearing stability of the device is effectively improved.

The utility model discloses a connecting structure of a ceiling joist, which relates to the technical field of ceiling decoration and comprises a first joist and a second joist which are perpendicular to each other in a horizontal plane. The connecting structure comprises a profile steel base body, a first clamping piece body and a second clamping piece body. One end of the profile steel base body is clamped in the second keel; a first clamping piece body is arranged at the top of the other end of the profile steel base body, a second clamping piece body is arranged at the bottom of the other end of the profile steel base body, and the second keel is located between the first clamping piece body and the second clamping piece body. During use, one end of the profile steel base body is clamped in the second keel, then the first keel is clamped in the first clamping piece body and the second clamping piece body, connection between the ceiling keels perpendicular to each other can be directly achieved, mounting and dismounting are faster and more efficient, and the labor cost is saved; meanwhile, the quick connection structure can be used for quick connection of two prefabricated suspended ceiling modules.

Fastener-free deck clips, methods of use, and associated installation tools. The clips use a gripping element to secure the clip to a joist and do not require the use of a separate screw or other fastener, simplifying the installation process. The clip has a central body with lateral wings extending to an endpoint, where the gripping element is located. The gripping element may include puncturing elements to adhere better to the joist. Likewise, the main body may have tabs that can be depressed to further adhere to the joist. The clips may be installed by use of a handheld tool.

A connector, a connection and a method of making the connection that allows for the connection of a supported member to a supporting member and the supported member is a structural, fire-rated member to which joist hangers that support joists are attached, and the supported member protects the supporting member from fire damage.

An anchoring bracket that secures a safety line includes a pair of anchoring plates, a ridge cap member, and at least one D-ring connector. Each of the anchoring plates is hingedly connected the ridge cap member on opposite sides thereof and the D-ring connection member is rotatably connected to a top side member of the ridge cap member. Each of the anchoring plates includes first and second leg members having a plurality of boreholes therethrough. The anchoring plates may be opened to be placed on a flat roof or over a roof peak and secured to one or more structural members of the roof, e.g., roof rafters, trusses, joists, or Z-purlins, as well as portions of the roof decking, using appropriate fasteners in accordance with one or more safety regulations or protocols, e.g., local, OSHA, ANSI.

The present invention relates to the technical field of building construction, specifically a post-cast strip support structure and construction method, comprising a formwork, joists, and adjustable uprights. Multiple formwork is positioned between two rows of joists, with second support plates fixed on both sides of the joists to support the formwork. Adjacent joists in the same row are detachably connected via top supports, and the tops of the adjustable uprights are connected to the top supports. When cleaning the post-cast strip, the formwork and joists are removed from the adjustable uprights. The present invention enables the formwork to be removed from the uprights, thereby facilitating the cleaning of debris within the formwork and achieving a technical effect.

A method of assembling a deck board by using a step clip fastening device is disclosed. The method comprising the steps of fastening the step clip fastening device onto a joist by using a plurality of fastening tools; sliding a first end of the deck board into an inner cavity of a step clip attached at a first end of the step clip fastening device; and snapping a second end of the deck board into an inner cavity of a corresponding step clip facing the step clip attached at the first end of the step clip fastening device to form a mating relationship between the deck board and the step clip fastening device.

The invention relates to the technical field of light steel keel cutting, and provides a cutting device for light steel keel production, the cutting device is used for cutting a light steel keel into sections, a bearing platform and a rotating clamp, and the rotating clamp is rotationally arranged on the bearing platform and used for clamping the end of the light steel keel to be cut; one end of the supporting rod is arranged in the rotating clamp, the other end of the supporting rod extends to the outer side of the rotating clamp, and the peripheral wall of the supporting rod is attached to the inner wall of the light steel keel and used for being lapped with the light steel keel to be cut. The sliding seat is arranged on the bearing platform in a sliding mode, the sliding seat is provided with a horizontally-through containing space allowing the light steel joist to enter, and a plurality of cutting-up cutters are arranged on the inner circumference of the containing space and used for abutting against the outer circumferential wall of the light steel joist; the rotary clamp can drive the light steel keel to rotate so that the light steel keel can be cut through the cutting knife. The technical problem that in the prior art, after the light steel joist is cut, burrs and deformation can appear on the cut portion of the light steel joist is solved.

To provide a heat insulating material support that can construct an underfloor heat insulation structure not having heat insulating loss with excellent workability.SOLUTION: A heat insulating material support 1 receives and supports, from the lower surface side, both of a first heat insulating material 30 placed between columnar objects 10, 20 and a second heat insulating material 40 placed directly below a small floor joist 20. The heat insulating material support has side pieces 2 and support pieces 3 and is formed to be lockable to the small floor joist 20. The support piece 3 has a first support piece 3A extended from the side piece 2 and stretching to the arrangement space side of the first heat insulating material 30 and a second support piece 3B extended from the side piece and stretching to the arrangement space side of the second heat insulating material 40.SELECTED DRAWING: Figure 7

The utility model discloses a stable light steel joist connecting structure which comprises a bottom plate, a first light steel joist is arranged on one side of the top of the bottom plate, a second light steel joist attached to the top of the bottom plate is arranged on one side of the first light steel joist, and two clamping plates are installed on the top of the bottom plate. The inner walls of the two clamping plates are movably connected with the outer walls of the first light steel keel and the second light steel keel correspondingly. The utility model relates to the technical field of light steel keels, and the stable light steel keel connecting structure can improve the connecting stability of two light steel keels through the matching of the bottom plate, the clamping plate, the threaded rod, the sleeve, the gasket, the vertical plate and the bent plate, and avoids the phenomenon that the light steel keels are damaged and deformed due to large stress at the connecting position. Meanwhile, when the light steel keel needs to be dismantled, due to the fact that the light steel keel does not deform, the light steel keel can be rapidly dismantled by workers, and then the workers can use the light steel keel conveniently.

The present application relates to a kind of roof mounting process and joggle device of rail vehicle body, comprising the following steps: S1, four roof joists are fixedly connected on the installation reference surface of joggle device by bolt, form quadrilateral overall frame;S2, after pre-grouping, roof joist is together with joggle and falls into the main structure of car body;S3, roof joist is fixed with the main structure of car body by welding;S4, after welding, joggle is removed from roof joist;S5, roof is fallen into the roof joist of installation completion, and roof is fixedly connected with roof joist by bolt.The present application can realize quick, accurate installation roof, and it is favorable to promote operation efficiency, reduce operation cost.

The present invention relates to a structure comprising a first level and a second level, wherein the second level is a mezzanine. The structure includes a first structural insulated panel (SIP) forming a portion of a wall or a supporting wall of the mezzanine, and a second SIP forming a wall of an open space adjacent to the mezzanine. The second SIP has a height at least twice that of the first SIP. A third SIP forms at least a portion of a floor of the mezzanine. The first and second SIPs include columns and stress and load-bearing insulators adhered between the columns. The third SIP includes joists and stress and load-bearing insulators adhered between the joists. The second SIP further includes a girder integrated at the height of the mezzanine to support additional joists.

The utility model relates to the technical field of indoor decoration, and provides an access ceiling joist device which comprises an access ceiling plate and ceiling assemblies distributed on the two sides of the access ceiling plate. The suspended ceiling assembly comprises a lead screw and a keel assembly. The keel assembly comprises a first connecting piece and a first keel; the first connecting piece is connected with the first keel in a buckled mode, and a supporting rib is arranged at the side end of the first keel. A rabbet is formed in the side end of the access ceiling plate, and the supporting ribs are embedded into the rabbet. The screw rod is in threaded connection with the keel assembly, so that the height of the keel assembly is adjustable, and different mounting requirements can be met; and the supporting ribs are embedded into the rabbets of the access ceiling plate to support the access ceiling plate, so that the access ceiling plate is quickly and conveniently mounted.

The present invention concerns, in a first aspect, a support joist (1) for lightweight roof formwork systems, defined by a longitudinal body provided with a smooth upper surface, its length being equal to the length of the panels of the formwork systems, and its height at the longitudinal ends and in the central area (11) equal to the height of said panels. The support joist comprises at least one reinforcement portion (12) defined on the lower surface and configured to reinforce the longitudinal body between the central area (11) and at least one of the longitudinal ends of the longitudinal body, said at least one reinforcement portion (12) comprising a lower coupling (13) configured to couple with the end of a prop. A second aspect of the invention concerns a formwork system comprising said support joist (1).

The utility model relates to the field of coal mine equipment, in particular to a support top beam and joist connecting device which comprises a top beam, a joist and a ring beam sleeve, the joist is located below the top beam, the joist and the top beam are in a perpendicular crossing state on the horizontal plane, a plurality of connecting blocks are fixedly installed at the bottom end of the top beam, and the ring beam sleeve is sleeved with the joist. A plurality of inserting grooves are formed in the two side walls of the joist, the ring beam sleeve is in a U shape and annularly sleeves the outer wall of the joist, the top end of the ring beam sleeve is connected with the connecting block through bolts and nuts, connecting holes corresponding to the inserting grooves are formed in the ring beam sleeve, and connecting rods are slidably installed in the connecting holes. And the connecting rod is inserted and embedded in the slot. The device has the effect of facilitating movement of the top beam.

Thermally insulating and moisture and mold resistant subfloors include: a subfloor support structure that includes a subfloor framework comprising joists, beams, furring strips, and / or foam sheets, and optionally an intermediate underlayment comprising sheathing fastened to or applied over the subfloor framework, and lightweight composite underlayment panels fastened to the subfloor support structure. Lightweight composite panels include a foam core and fiber reinforced cementitious (or other protective) layers formed on the foam core surfaces. The subfloor support structure may include sheathing, wherein the lightweight composite panels are fastened to the sheathing to form the subfloor underlayment. In other cases, the subfloor support structure may omit sheathing, wherein the lightweight composite panels are fastened directly to the subfloor framework to form the subfloor underlayment. An optional ceiling structure of a lower floor can be formed by fastening lightweight composite ceiling panels under the subfloor framework of the subfloor.

The invention discloses an anti-sideslip curtain wall self-adaptive switching assembly and a curtain wall structure, and relates to the technical field of curtain walls, the curtain wall self-adaptive switching assembly comprises a supporting piece, a guiding piece and a connecting piece, the supporting piece is provided with a top side and a bottom side which are arranged back to back, and the bottom side is provided with a first limiting part and a second limiting part which are arranged at an included angle; the guide piece is rotationally connected to the top side of the supporting piece; the connecting piece penetrates through the supporting piece and the guiding piece. The anti-sideslip curtain wall self-adaptive switching assembly provided by the invention can be used for connecting a main body structure and a ceiling joist of a curtain wall. The connecting piece can be regarded as a bolt, and the guiding piece and the supporting piece can rotate relatively, so that even if the main body structure or the ceiling joist is in an inclined state at a certain angle, the guiding piece and the supporting piece can compensate the inclined angle through relative rotation, and the connecting piece can still smoothly penetrate through the guiding piece, the supporting piece and the ceiling joist to complete connection work; installation is simple and working efficiency is high.