1022 results about "Purlin" patented technology

The invention relates to the technical field of foundation pit supports, in particular to a repeatable assembly type steel support for foundation pit construction, which comprises an extension steel support, a butt joint steel support, a main steel support, an axial force supplement steel support, two jacks and two steel enclosing purlins, the butt joint steel support is fixedly connected with the main steel support, and the axial force supplement steel support is slidably connected with the inner wall of the main steel support; the two ends of the axial force supplementing steel support and the two ends of the extension steel support are fixedly connected with the jacks respectively. The quick dismounting and mounting mechanism is arranged to be linked with the anti-deformation mechanism, the axis of the extension steel support is limited, and the situation that when the axial force is insufficient, the joint of the extension steel support and the butt joint steel support collapses due to the gravity effect is prevented. Meanwhile, the gravity direction of the steel support is changed through a fixing plate on the gravity compensation axial force mechanism, the gravity of the steel support acts on a hinged plate downwards all the time, then a sliding plate and the axial force compensation steel support are driven to abut against the foundation pit, the installation time is shortened through the design, and the self-weight influence of the steel support is effectively controlled.

The invention discloses a wind-proof photovoltaic support and a construction method thereof, and relates to the technical field of photovoltaic power generation, the wind-proof photovoltaic support comprises a support assembly and a sealing plate, the support assembly comprises a plurality of longitudinal beams, a plurality of purlines and a plurality of waterproof strips, the sealing plate is arranged on the periphery of a roof surface in a surrounding mode, and the sealing plate is arranged on the periphery of the roof surface. The sealing plate is further connected with the photovoltaic panel located on the edge of the roof face in a sealed mode so that the sealing plate can seal a gap between the photovoltaic panel located on the edge of the roof face and the roof face. The gap between the photovoltaic panel located at the edge of the roof surface and the roof surface is sealed by arranging the sealing plate, and airflow is prevented from entering the space between the roof surface and the photovoltaic panel from the gap, so that the probability that the photovoltaic panel is lifted by wind is effectively reduced, and the wind resistance of the photovoltaic panel is effectively improved.

The invention belongs to the technical field of bridge engineering, and particularly relates to a deepwater lock catch steel pipe pile cofferdam construction method which comprises the following steps: construction preparation: delimiting a steel pipe pile cofferdam area; drilling and groove milling are carried out along the steel pipe pile cofferdam area to form a cofferdam groove, and sandy soil is backfilled in the cofferdam groove; a guide device is lowered along the bored pile steel casing, and steel pipe piles are inserted one by one to form a steel pipe pile cofferdam; a plurality of inner supporting systems are assembled; a covering layer is excavated on the inner side of the steel pipe pile cofferdam to the designed elevation; underwater grouting is conducted on the inner sides and the outer sides of the steel pipe piles located in the cofferdam grooves; the multiple inner supporting systems are sequentially lowered to the designed elevation; a gap between each enclosing purlin structure and the steel pipe pile is checked; the bottom of the foundation pit is cleaned, water is pumped layer by layer, and concrete is poured between the enclosing purlin structure and the steel pipe piles till water pumping in the cofferdam is completed; the bearing platform / pier body is constructed, and backwater of the corresponding inner supporting systems is sequentially removed along with construction of the bearing platform / pier body till water flows out of the bearing platform / pier body; and dismantling the steel pipe pile cofferdam.

The invention belongs to the technical field of foundation pit construction, and particularly relates to a foundation pit supporting structure and a construction method thereof.The foundation pit supporting structure comprises a plurality of steel pipe piles arranged in the circumferential direction of a foundation pit at intervals, first lock catches are fixed to the outer sides of the steel pipe piles, Larsen steel sheet piles are arranged between the steel pipe piles, and second lock catches are fixed to the two sides of each Larsen steel sheet pile; the adjacent steel pipe piles and Larsen steel sheet piles are connected in a clamped mode through corresponding first lock catches and second lock catches, surrounding purlins are fixed to the inner sides of the multiple steel pipe piles, and concrete supporting pieces are arranged between the surrounding purlins and the corresponding Larsen steel sheet piles. The steel pipe piles are matched with the Larsen steel sheet piles, so that the rigidity of a supporting system is guaranteed while rapid supporting is guaranteed, and less garbage is generated after dismantling.

The utility model provides an auxiliary hoisting device for a roof purline module, which belongs to the technical field of steel structure installation and comprises a hoisting frame, a purline module fixing mechanism and a frame hoisting mechanism. The hoisting frame comprises an I-shaped foundation frame and reinforcing ribs; first lower lifting lugs are respectively arranged at two ends of the bottom surface of the I-shaped foundation frame in the length direction; a first upper lifting lug and a second upper lifting lug are respectively arranged at two ends of the top surface of the I-shaped foundation frame in the length direction; the purline module fixing mechanism comprises a first main rope body detachably connected with the first lower lifting lug, a first branch rope body and a second branch rope body, wherein the first branch rope body and the second branch rope body are detachably connected with the lower portion of the first main rope body. The first branch rope body and the second branch rope body are detachably fixed to the two ends of the side purline of the purline module respectively. By utilizing the auxiliary hoisting tool, the problems that in the prior art, an auxiliary hoisting tool directly hoists a single purline through a hook and is mostly used for hoisting a small-span roof, the purline rotates and shakes, the hoisting speed is low and the like can be solved.

The present application relates to steel structure erection technical field, concretely is a kind of steel beam jacking equipment for steel structure factory building assembly.It includes mainframe, adjusting assembly, adjusting track group;The adjusting assembly of the present application can effectively fix steel purlin and support it on roof, and the adjusting assembly of the present application can adjust the front and back positions of steel purlin, can rotate steel purlin by a certain angle to avoid interference with roof frame during jacking process, can also tilt purlin in a row by a certain angle to adapt to the angle of roof frame, under the support of adjusting assembly, workers only need to adjust purlin to installation position to start installation, and can install multiple purlin at a time, it is convenient and fast, greatly improve installation efficiency;The adjusting track group of the present application can use the support column of original building as reference to accurately position the whole system;The adjusting assembly of the present application can move front and back purlin along its length direction, make its head and tail connection without gap, to ensure its installation accuracy.

The invention relates to the technical field of Larsen steel sheet pile construction, and discloses a Larsen steel sheet pile cofferdam construction method suitable for a deepwater area, which comprises the following construction steps: 1) arranging a construction platform; (2) four positioning piles are driven into the construction position to form a construction area; 3) arranging a guide frame in the construction area, wherein the guide frame is provided with a guide arm; (4) a plurality of Larsen steel sheet piles are driven along the guide arms, the bottoms of the Larsen steel sheet piles extend into the solid soil layer, and adjacent Larsen steel sheet piles are arranged in a sealed mode; (5) enclosing purlins are arranged on the pile rows, and steel supports are arranged between the enclosing purlins to form an inner supporting structure; (6) water and sludge in the construction area are sucked till the solid soil layer is exposed at the bottom, and the Larsen steel sheet pile cofferdam is formed by the multiple Larsen steel sheet piles and the multiple inner supporting structures; the bottoms of the Larsen steel sheet piles extend to a solid soil layer and are arranged in a sealed mode, and a plurality of inner supporting structures are arranged, so that the water stopping performance of the cofferdam is improved, and meanwhile the stability and the water flow impact resistance are enhanced.

The present invention belongs to the technical field of foundation pit support, and in particular relates to an anti-collapse support structure for a deep foundation pit, comprising a foundation pit, a plurality of cast-in-place piles fixedly provided at the bottom of the foundation pit, a plurality of purlins fixedly connected to the side walls of each cast-in-place pile, a plurality of inclined anchor rods fixedly connected to each purlin and the side walls of the foundation pit, a retaining wall fixedly connected to the bottom of the foundation pit, and a plurality of active support mechanisms fixedly installed between the retaining wall and the plurality of cast-in-place piles. The present invention can improve the stability of the pile-anchor support, and can actively strengthen the support according to the pressure of soil collapse, thereby improving the anti-collapse performance of the support. At the same time, it can also be automatically triggered in stages to perform collapse buffering protection at the inner outer edge of the foundation pit, which can not only alert on-site personnel, but also reduce the degree of collapse risk and improve safety.

The invention discloses an angle-adjustable steel supporting structure which comprises a steel enclosing purlin horizontally arranged on a steel sheet pile on the inner side of a foundation pit; the steel support is arranged between the steel enclosing purlins on the two sides; the adjusting seats are arranged at the two ends of the steel support; the adjusting seat comprises a fixed seat and a movable seat, the fixed seat is connected with the steel enclosing purlin, the movable seat is rotationally connected to the fixed seat through a hinge shaft, a plurality of layers of arc-shaped adjusting pipes are arranged on the movable seat, an adjusting rod connected to the adjusting pipes in a sliding mode is arranged on the fixed seat, and a U-shaped locking rod is vertically connected to the adjusting pipes in an inserted mode; the adjusting rod is provided with a locking hole for the locking rod to penetrate through. The steel support has the following advantages and effects that the angle-adjustable adjusting seats are arranged at the two ends of the steel support, the included angle between the steel enclosing purlins on the two sides is made up, the steel support can be stably connected with the steel enclosing purlins through the adjusting seats, brackets do not need to be welded or cushion blocks do not need to be installed, rapid construction of the steel support is guaranteed, and the construction efficiency is improved.

The invention relates to a comprehensive construction method for a Larsen steel sheet pile cofferdam of an anti-typhoon cross-sea bridge. The comprehensive construction method comprises the steps that firstly, BIM and VR application is conducted; 2, construction preparation is conducted; thirdly, a first enclosing purlin is installed, and steel sheet piles are driven in an inserted mode; fourthly, steel enclosing purlins and water stops are installed; 5, bottom sealing concrete is constructed; sixthly, the elevator cage is installed; seventhly, a bearing platform is constructed; eighthly, dismantling construction is conducted; ninthly, the steel sheet piles are recycled; and step 10, intelligent monitoring application. The construction challenges caused by complex landforms at the bottom of the foundation are effectively overcome by adopting targeted construction measures, the resistance to typhoon and storm impact is enhanced, corresponding improvement measures are integrated in all construction processes, and positive effects are achieved.

The invention discloses a method and a system for detecting the connection strength of a C-shaped steel purline connecting piece, and relates to the technical field of photovoltaic equipment detection, and the method comprises the following steps: carrying out a connection strength test on an integral structure formed by two C-shaped steel purlines and a steel connecting piece through an external material test end; undetectable internal damages such as subfissure, fatigue and the like of the steel connecting piece are continuously detected through ultrasonic waves in the test process, multiple groups of ultrasonic test data are formed by changing the bolt torque of the steel connecting piece, and data expansion is performed based on the corresponding relation between torque and ultrasonic signals through linear regression in the data processing stage; the full-series corresponding relation between the torque and the ultrasonic signal can be obtained by analyzing the regression coefficient of the corresponding relation, and finally, the occurrence time consumption of the first abnormal wave crest of the ultrasonic signal with the waveform characteristics of subfissure, fatigue and the like is obtained, and the torque corresponding to the first abnormal wave crest with the longest time consumption in all the occurrence time consumption is searched. The torque is the optimal torque of the steel connecting piece.

The embodiment of the invention provides an automatic embracing welding system which comprises a turnover mechanism, a conveying mechanism and welding equipment, the turnover mechanism is provided with a first station and a second station on one side of the first station, and the turnover mechanism can turn a C-shaped purline on the first station to the second station. The conveying mechanism comprises a grabbing assembly which is arranged above the turnover mechanism and can move transversely and a conveying assembly located on one side of the turnover mechanism, the conveying assembly is provided with a stacking station, and the grabbing assembly can grab the C-shaped purline on the first station to the stacking station or can grab the C-shaped purline on the second station to the stacking station. The grabbing assembly can grab the C-shaped purlins on the second station to be stacked on the C-shaped purlins on the stacking station. The welding equipment corresponds to the conveying assembly and can drive the stacked C-shaped purlins to move and conduct welding. The turnover mechanism is in butt joint with manufacturing equipment of the C-shaped purline, the manufactured C-shaped purline is directly conveyed to the automatic embracing welding system, so that the C-shaped purline can be automatically machined into an embracing welding assembly after being produced, the labor cost is saved, and the efficiency is high.

The utility model discloses an integrated structure for vertically arranging steel frame photovoltaic modules on a support, which comprises a fixed column, purlines are arranged at the upper end and the lower end of the fixed column, stand columns are connected to the left sides and the right sides of the purlines and the middle of the fixed column, and purline connecting plates are fixedly connected to the sides, away from each other, of the upper end and the lower end of each stand column. The other end of the purline connecting plate is fixedly connected to the purline; through the purlines, the stand columns, the purline connecting plates, the assembly connecting plates and the steel frames, compared with a traditional aluminum alloy frame, the solar cell pieces can be completely not shielded, the assemblies are vertically arranged on the assembly connecting plates of the stand columns, meanwhile, the assembly connecting plates do not shield the solar cell pieces, and therefore the back faces of the photovoltaic assemblies are completely not shielded; the device can be conveniently driven to adjust the height, so that the power generation efficiency of the photovoltaic module during vertical installation is improved, the device can conveniently penetrate into the ground to be fixed through the spiral ground pile, and the fixing effect of the device and the ground installation is ensured.

The present invention provides a fusion mirror roof panel, a roofing structure, and a building. The fusion mirror roof panel comprises: a waterproof plate layer, comprising a first metal plate layer and a first waterproof layer attached to the outer side of the first metal plate layer along the thickness direction of the fusion mirror roof panel; a second metal plate layer, located on the inner side of the waterproof plate layer and arranged opposite to the waterproof plate layer, wherein the second metal plate layer is provided with multiple ribs protruding toward the inside, the ribs extend in a second direction, the multiple ribs are arranged at intervals in a first direction, the first direction is perpendicular to the second direction, and the ribs are used for being in contact with purlins; and a thermal insulation layer, sandwiched between the waterproof plate layer and the second metal plate layer. The fusion mirror roof panel provided by the present invention can be produced and assembled in a factory, thereby reducing the construction procedure, lowering the on-site installation costs, and increasing the on-site construction speed.

The invention relates to an automatic monitoring and adjusting type foundation pit supporting system. Comprising a pump station, a control center, enclosure walls arranged on the four walls of a foundation pit, enclosing purlins arranged on the inner side walls of the enclosure walls, a plurality of horizontal supporting beams oppositely supported between the enclosing purlins, vertical supporting frames arranged in the foundation pit and supported in the middles of the horizontal supporting beams, and displacement sensors arranged in the enclosure walls and used for detecting the displacement amount of the foundation pit walls. The supporting beam comprises a beam body and two hydraulic jacks which are arranged at the two ends of the beam body and stretch out and draw back in the extending direction of the beam body, the hydraulic jacks are connected with the pump station, and the pump station and the displacement sensor are connected with the control center. The prefabricated high-strength supporting beam has the advantages that the supporting axial force can be automatically monitored and adjusted, the prefabricated high-strength supporting beam is provided, and the problems that an existing foundation pit supporting system cannot be monitored and adjusted in real time, and the supporting beam cannot have the advantage of high-strength prefabrication at the same time are solved.

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 invention discloses a light-weight high-strength corrosion-resistant composite material photovoltaic support, and relates to the technical field of new materials and new energy, the light-weight high-strength corrosion-resistant composite material photovoltaic support comprises a front stand column and a rear stand column, the front stand column and the rear stand column are pre-buried in a concrete pile to be fixed, the top end is provided with an oblique beam, the oblique beam and the stand columns adopt triangular connecting pieces with partition plate sleeves, and a plurality of purlines are arranged on the oblique beam in parallel; the purlins are fixed to the oblique beams through purlin supports. In order to improve the stability of the support, a front inclined strut and a rear inclined strut are additionally arranged between the stand column and the oblique beam, the inclined struts and the stand column as well as the inclined struts and the oblique beam are connected through triangular connecting pieces with partition plate sleeves, gaskets are additionally arranged at the connecting positions of the stand column, and the triangular connecting pieces for connecting the inclined struts and the oblique beam and purlin supports share a pair of long holes penetrating through the oblique beam. The triangular connecting piece with the partition plate sleeve and the gasket is utilized, so that the pressure-bearing contact surfaces of components such as the stand column and the inclined strut are changed from bolt holes to end total sections, and the pressure-resisting axial force of the inclined beam, the stand column and the inclined strut is greatly improved.

The invention relates to the technical field of pit foundation supporting, in particular to an open cut culvert foundation pit supporting structure. Comprising two columns of fences which are horizontally and oppositely arranged; the two columns of hanging plates are correspondingly matched with the two columns of fences, and the multiple hanging plates in each column are sequentially distributed and connected to the top ends of the single columns of fences in a lap joint mode; a plurality of groups of inner support assemblies are arranged, and one group of inner support assembly is connected between every two scraper blades, which are horizontally opposite to each other, in the two rows of hanging plates; two groups of enclosing purlin assemblies; the enclosing purlin assembly comprises a plurality of enclosing purlin plates which are horizontally inserted into the end pieces in a one-to-one correspondence and sliding mode, the adjacent enclosing purlin plates are matched in an inserted mode, and locking and clamping pieces used for connecting the adjacent enclosing purlin plates in series and locking the adjacent enclosing purlin plates are inserted between the adjacent enclosing purlin plates; according to the foundation pit supporting structure provided by the invention, the convenience and rapidness of supporting assembly lap joint and disassembly are improved, the difficulty of assembly and disassembly is reduced, meanwhile, the integrity and flexibility of the supporting structure are improved, damage and deformation of the supporting structure are avoided or reduced, and the reusable rate of the supporting structure is ensured.

The utility model discloses a lifting appliance for rapidly lifting wall surface purlines, which belongs to the technical field of house building construction, a plurality of purlines are arranged along the height direction of the wall surface, the lifting appliance comprises a hanging rope, a plurality of lifting points are arranged on the hanging rope along the length direction, and the hanging rope is connected with lifting equipment; the hanging point is arranged on the hanging rope, the fixed end of the hanging assembly is connected with the hanging point, the movable end of the hanging assembly is detachably connected with the purline, and the two hanging assemblies which are symmetrically arranged relative to the center of the hanging rope are used for hanging one purline. According to the lifting appliance, the purlines are bound through the movable ends of the hanging assemblies on the hanging rope, the two hanging assemblies symmetrically arranged about the center of the hanging rope are used for hanging one purline, the lifting appliance is used for hanging multiple purlines at a time, the lifting appliance is used in cooperation with hoisting equipment, and safe, efficient and low-cost lifting of the wall purlines is achieved.

The utility model relates to photovoltaic support technical field, concretely is a kind of photovoltaic support roof waterproof type fixed buckle, it includes: purlin, the top surface of purlin is equipped with C-shaped frame, the top surface of C-shaped frame is equipped with photovoltaic board;Clasp structure is installed on the purlin, the clasp structure includes U-shaped frame, the bottom end outside of purlin is sleeved in U-shaped frame, the upper end of U-shaped frame is equipped with L-shaped clamping slot, the inside top surface of U-shaped frame is integrally formed with positioning ring, the outside of positioning ring is equipped with corrugated rubber sleeve.The utility model sets up corrugated rubber sleeve and metal sleeve, can be set in the outside of abutting bolt, and the upper end of corrugated rubber sleeve abuts to the bottom surface of purlin, rainwater on the surface of purlin cannot drip to the outside of abutting bolt and U-shaped frame junction, can make between abutting bolt and U-shaped frame keep smooth, prolong the service life of clasp structure, guarantee the dismounting convenience of clasp structure.

The present application relates to the technical field of photovoltaic panel assembly installation, and particularly relates to a combined device facilitating the fixed installation of a photovoltaic panel and a structural purlin, comprising an upper pressing block, a U-shaped bolt and a lower back pressing plate, the upper pressing block comprises an L-shaped block, an inclined wing plate and an edge pressing block, the inclined wing plate is fixed on the top end sidewall of the L-shaped block, the edge pressing block is fixed on the bottom end sidewall of the L-shaped block, the inclined wing plate is located on one side of the L-shaped block, and the edge pressing block is located on the other side of the L-shaped block; two long holes are formed in the bottom plate of the L-shaped block, two round holes are formed in the lower back pressing plate, the two round holes correspond to the two long holes one by one, the two ends of the U-shaped bolt pass through the corresponding long holes and round holes respectively, and the two ends of the U-shaped bolt are both threadedly connected with nuts. The present application solves the problem that the long bolt in the prior art leads to poor stability and easy damage to the edges of photovoltaic components, and improves the installation reliability and safety of the photovoltaic panel on an inclined surface.

The utility model belongs to the technical field of greenhouse building structures, and particularly relates to a greenhouse wind-resistant building steel structure which comprises a greenhouse foundation, a main steel frame column is installed at the upper end of the greenhouse foundation through bolts, a main steel frame beam is installed on the back face of the main steel frame column through bolts, and an end wall purline is welded to the front face of the main steel frame column. A wind-resistant stand column is installed at the upper end of the greenhouse foundation through a bolt, and the wind-resistant stand column is connected with an end wall purline in a welded mode or in a bolted mode. According to the scheme, through cooperative use of the wind-resistant stand columns, the horizontal pressure beams, the inclined horizontal pull rods and other structures, the stability of the whole structure is enhanced, the wind-resistant capacity of the multi-span greenhouse end wall is effectively improved, safe use of the greenhouse under the severe weather condition is guaranteed, sunlight shielding is reduced through the small end wall purline section, and the service life of the greenhouse is prolonged. The lighting amount of the greenhouse is increased, more sufficient lighting conditions are provided for growth of crops in the greenhouse, and the yield and quality of the crops are improved.

The application relates to the technical field of rectangular pipe construction, in particular to a construction device for rectifying deviation of a rectangular pipe after the pipe is penetrated, which comprises Larsen steel sheet piles, the Larsen steel piles are arranged on opposite sides of a pipe joint, a dewatering well is arranged outside the two steel sheet piles, a steel enclosing purlin is fixedly connected to one side of the Larsen steel sheet pile close to the pipe joint, steel supports are arranged between the steel enclosing purlins on the same horizontal plane, the two ends of the steel support are respectively connected to the steel enclosing purlins located at the two ends of the steel support, a bracket is welded below the steel enclosing purlin, a concrete limiting block is arranged at a lower chamfered corner of the pipe joint, a concrete cushion beam is arranged on the side of the pipe joint away from the concrete limiting block and close to the upper side, a second steel enclosing purlin is arranged between the concrete cushion beam and the pipe joint, a jack is arranged between the second steel enclosing purlin and the concrete cushion beam, and a steel sheet pad is arranged between the jack and the concrete cushion beam, so that the problem of pipe joint rotation correction after the rectangular pipe construction is completed in an underground pipe joint project is solved.

A lightning protection system for an aluminum-magnesium-manganese upright lockrand metal roof comprises a lightning protection copper strip and a Z-shaped metal guide sheet, and is characterized in that the lightning protection copper strip is fixed on a secondary purlin and a purlin support; one end of the Z-shaped metal guide piece is installed on the aluminum alloy support, the other end of the Z-shaped metal guide piece is fixed to the secondary purline, the conductive effect from the aluminum alloy support to the secondary purline is guaranteed, the lightning protection folding piece is covered with the cut TPO waterproof roll, and water leakage is prevented. The lightning protection system for the aluminum-magnesium-manganese upright lockrand metal roof has the advantages that during installation of the secondary purlins of the roof, the lightning protection copper strips are installed between the secondary purlins and the purlin supports, and the conductive metal blocks are installed on the aluminum alloy supports of the roof panels, so that a large conductive section is formed, the conductive effect is enhanced, and the service life of the roof is prolonged. The problems of time-consuming, labor-consuming and high-cost lightning protection measures of frequent lightning protection construction are solved, and the lightning protection requirement is effectively ensured.

The present invention discloses a gutter connection structure between a skylight and a metal roof, comprising a gutter, a skylight, and a curved roof panel. The bottom end of the gutter is arranged on the main purlin, and side wall square tubes are arranged on both sides of the gutter. The bottom ends of the side wall square tubes are welded to the main purlin, and the edges of the gutter overlap the top surfaces of the side wall square tubes. A full-length fixing piece is provided on the inner wall of the gutter, and the full-length fixing piece is connected to a shedding plate via a full-length aluminum alloy buckle strip. The lower end of the shedding plate is bent inwardly into an acute angle, and the upper end of the shedding plate cooperates with the skylight or the curved roof panel. The gutter connection structure between the skylight and the metal roof of the present invention is ingeniously designed and highly waterproof. It effectively solves the problem that when the gutter is located between the skylight and the metal roof, rainwater accumulates and easily leaks, causing rainwater to flow back into the insulation layer of the roof or the lower end of the curtain wall glass of the skylight, causing damage to the building.

The utility model discloses a concrete roof distributed photovoltaic module fixing device, which relates to photovoltaic module auxiliary installation equipment, comprises a pressing block used for fixedly connecting a distributed photovoltaic module and a wingceltis bar, and is characterized by further comprising a fixing plate comprising a first connecting part and a second connecting part which are integrally formed, the first connecting part is positioned on the left or right of the second connecting part; the top surface of the first connecting part is flush with the top surface of the second connecting part; the front side and the rear side of the second connecting part extend downwards and are used for being matched with wingceltis strips in an inserted mode, and the second connecting part is provided with a connecting hole penetrating through the second connecting part vertically. And the first connecting part is used for pressing the outer frame of the distributed photovoltaic module. The concrete roof distributed photovoltaic assembly fixing device disclosed by the utility model can improve the safety of the photovoltaic assembly, realizes secondary protection of the photovoltaic assembly, and greatly reduces the risk of falling of the photovoltaic assembly.

The invention discloses a parallel septic tank construction method applied to double-layer deep and thick sludge geology, and relates to the technical field of building construction, the method comprises the following steps: S1, construction preparation; s2, supporting construction; s3, foundation reinforcement construction; s4, implanting a core pile: vertically pressing the core pile into the center of the stirring pile before initial setting of the stirring pile; s5, inner supports are installed, specifically, enclosing purlins and steel supports are constructed; s6, layered excavation is conducted, specifically, after the stirring piles reach the design strength, earthwork layered excavation is conducted till the foundation is reached; s7, pouring a support changing plate: pouring a reinforced concrete support changing plate at the bottom of the foundation pit; s8, parallel septic tank foundation construction is conducted, specifically, reinforcing steel bars are bound on the support changing plate, a formwork is erected, and a septic tank foundation is poured; s9, dismantling the inner support: dismantling the enclosing purlin and the steel support after the support plate to be replaced and the parallel septic tank foundation reach the design strength; s10, mounting a septic tank: hoisting the prefabricated septic tank in place; s11, the steel sheet piles are dismantled; and S12, septic tank backfilling construction is conducted. The construction method has the effect of improving the construction quality.

The utility model provides a prestress-adjustable web member for supporting a foundation pit string truss, the bottom of the web member is provided with a movable head, and the left side and the right side between a movable end and a fixed end of the movable head are respectively provided with a jack; the bottom of the jack is fixed to the base of the fixed end, and a piston rod of the jack abuts against the surface of the bottom plate of the movable end. The jack is installed on the adjustable head at the bottom of the web member, the elongation of the adjustable head is adjusted through the jack, and therefore adjustment of prestress can be achieved in the installation stage or the use stage, and effective supporting is provided for the foundation pit enclosing purlin. Furthermore, the base and the bottom plate are connected through a locking mechanism. After the jack is pressurized, locking and pressure maintaining are conducted through the locking mechanism, the jack can be removed after pressure maintaining, operation is convenient and accurate, and the pressure is controllable.

The invention relates to the technical field of ocean engineering, and discloses a special-shaped steel pipe pile combined structure for complex seabed terrains, which comprises a plurality of steel pipe pile bodies and a seabed detector, and lock catch connecting mechanisms are arranged on the side surfaces of the plurality of steel pipe pile bodies; the lock catch connecting mechanisms are used for connecting and locking every two of the multiple steel pipe pile bodies, purlin frames are arranged on the inner sides of the multiple steel pipe pile bodies, a detection system is arranged in the seabed detector, and the detection system comprises a multi-beam sounding module used for obtaining three-dimensional topographic data of the seabed; the acoustic disturbance transmitting module is used for transmitting an acoustic disturbance pulse to a target point of the seabed; and the tracking imaging sonar module is used for collecting a seabed dynamic response image sequence triggered by the acoustic disturbance pulse. According to the method, in-situ fine investigation and structure differentiation design are combined, engineering materials are distributed according to needs, and on the premise that the structure safety is guaranteed, the engineering cost is reduced, and the construction efficiency is improved.

The utility model relates to an anti-overturning structure of a steel cofferdam, the steel cofferdam comprises cofferdam piles, enclosing purlins are arranged on the inner walls of the cofferdam piles, anti-overturning piles are inserted into the inner sides and the outer sides of a plurality of cofferdam piles at certain intervals, and the insertion depth of the anti-overturning piles is larger than that of the cofferdam piles. The upper ends of the anti-overturning piles are higher than the top elevation of the cofferdam pile, the anti-overturning piles on the inner side are tightly attached to surrounding purlins on the inner wall of the cofferdam pile, a certain distance is formed between the anti-overturning piles on the outer side and the cofferdam pile, and the upper ends of the two opposite anti-overturning piles on the inner side and the outer side of the cofferdam pile are tensioned through a pull rod. The whole anti-overturning performance of the cofferdam can be guaranteed under the condition that the cofferdam piles cannot reach the designed buried depth.