stringer beam size
I'm building deck stairs with 12 treads, 2 notched plus 2 closed stringers. They are usually inclined secondary beams stemming from primary beams and their basic function is to convert distributed loadings from a slab into point loads which is transferred back to the primary beams or supports. A better option is to drill a 1/4-inch hole at the corner of the notch and cut to the hole. The following analysis demonstrates results of a typical wood-framed stair stringer configuration as well as several similar configurations. Imagine drawing a straight line that would connect the corner of each notch in the stair. If you want a deeper tread, youll have to cut deeper into the board, creating a larger notch and reducing the size of the throat. C channel sizes: stainless steel standard dimensions chart Asia . A lintel is an element of construction used to span or bridge a gap between two structural supports (commonly vertical columns). Most homes use standard-sized I-beams - on the smaller side - and support them with posts. Steve I'd like to see a photo, but yes it's quite possible that someone felt that the stairs were not adequately supported by the stringers so added a post at mid-span. Aluminum and glass will cost far more than a pine railing with pine balusters. 2) Design a waist slab type staircase comprising of a straight flight of steps supported between two stringer beams along the two sides. . The steel stringer ordinarily makes use of steel beams created by passing a steel bar between rollers to create an I-shaped section. Consult the decking manufacturers specifications when using synthetic decking for treads; many require stringers to be spaced no more than 12 inches or 10 inches apart, and some even require spacing as close as 8 inches. - PDF Document from NI, [12] Slips, Trips, Missteps and Their Consequences, Second Edition, Gary M. Bakken, H. Harvey Cohen,A. For the throat to be strong enough to support this load, it should be at least 3.5 inches wide, the same width as a 24. Precast TYE Beam. Notched stair stringers are widely used and are acceptable if sufficient supporting strength is provided. Cut stringers can be spaced no more than 18 inches apart, thus a 3-foot-wide staircase has three stringers, and a little broader set of stairs (say 3 feet 6 inches) requires four stringers. Deck staircases are normally constructed of 2 x 12 stringers spaced 12 to 16 inches apart. More than that, Wellmade is able to open new moulds to produce according to your Aluma Beam design. The steel beam sizes shown are the height in mm (the web) x the width in mm (the flange) x the weight per metre in kilograms, the height and width are measured as if looking at a capital I, hence also being known as I beam. Cut stringers can be spaced no more than 18 inches apart, thus a 3-foot-wide staircase has three stringers, and a little broader set of stairs (say 3 feet 6 inches) requires four stringers. So in the true sense, 28 beams can be used as doubles or triples and are much better and yielding than the 26 beams. 4 (2004). Given how critical the structural integrity of stair stringers is, it almost always makes sense to err on the side of caution and go with 212 lumber. The style of lift size you want will depend on the shape of your hull (V-Hull, Pontoon, V-Drive, etc.) We have all types and shapes of Aluma Beams for Your Primary Formwork Stringer and Secondary Formwork Joints. What Size Screws to Use for Decking Boards, Frame, Railings? A. Do not use deck board screw, use structural screws sold specifically sized to work with structural connectors. Aghayere, Abi, and Jason Vigil. For example, you may want to use stringers that are smaller in size to provide additional structural support where there is an aesthetic need. Raker beams and Seating Units TYPICAL SECTION ALONG PC RAKER BEAM Structural Precast Concrete Contractors Hazelhatch Road, Newcastle, Co.Dublin Email: info@concast.ie Seating Units. Note: appearance of your Comment below may be delayed: if your comment contains an image, photograph, web link, or text that looks to the software as if it might be a web link, your posting will appear after it has been approved by a moderator. Instead, cut to the line with the circular saw, then use a hand saw to finish the cut. 2. The Company distributes steel products and conducts its distribution business in three principal business segments: metals service centres; energy products and steel distributors. Its important to understand that while this treatment makes the wood more resistant to weather and pests, it does not make the lumber structurally stronger. They include risers (also known as toe kicks), treads, and railings. 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The stair waste itself require steel bars at the top in-order to accommodate the imposed tensile stresses on the cantilever. Permanent action includes the weight of the stair waste, weight of steps, load from finishes and balustrades. My reason to want the pvc on the bottom is to prevent wood rot of acq pressure treated lumber on a concrete slab in constant rainThank you. "Design of a Glass Stair." | Uses of Papercrete | Advantages and Disadvantages of Papercrete, Construction Calculator: Simplified Construction Cost Calculator, What is Stringer Beam? PhD diss., Milwaukee School of Engineering, 2010. Even with this connection, reflective cracking can occur in the overlay pavement. Multiple stringers use multiple stringer beams that are bolted or screwed to the riser and tread joints. How should stair support stringers be constructed and connected, what alternative materials can be used & what are the stair stringer building code specifications for strength & load bearing requirements. Versa-Lam laminated veneer lumber (LVL) beams and headers lead the industry in bending strength and E-value, offering better performance and longer spans. Roof Rafter Spacing and Sizing: Complete Guide - Plasticine House Common industry spacing for rafters is 12", 16", 19.2", and 24" on-center with other spacing used where design, climate conditions, and Engineers identify them. An open stringer is a stringer without any riser and tread. Other articles where stringer is discussed: beam: loaded longitudinal beams are the stringers; the heavier, transverse members are called floor beams. but the stringer cutouts are not at 90 degrees. The width of the stair can be up to 42 in this design without additional steel support under the tread. I-Beams Design The Aret team uses FRP I-beams for the stringer bridge design. Some companies also offer engineered wood that can be used for stringers, which also offer better strength qualities. The Ultimate Pergola Size Guide - Structureworks Interchangeable for left or right applications LSCSS features a Stainless Steel coating for additional corrosion protection. Calculate Fill in dimensions, mm: Opening height: Y Opening length: X Width of staircase: Stair thickness: Z Stair nosing: F Stringer thickness: A Supports thickness: B Above stringer stair height H Dimension: D Angle: U Amount of stairs: C Top stair is below the floor: SP Drawing in black and white: Change staircase direction: LR Calculate document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); 845-765-8600 Field slopeable to all common stair stringer pitches, the LSCZ connector is suitable for either solid or notched stringers. A. Stringer beams are typically made from steel, aluminum, or wood. STAIR STRINGER SPECIFICATIONS at InspectApedia.com - online encyclopedia of building & environmental inspection, testing, diagnosis, repair, & problem prevention advice. Is it to code to cut 5/8" off the bottom of stair stringers and affix a 5/8" thick piece of pvc to keep the wood up off the wet pavement? Tabs on the LSC must be positioned to the inside of the stairs. OSHA estimates that there are 24,882 injuries and as many as 36 fatalities per year due to falls from stairways and ladders used in construction. In fact, I live downstream from the property . The stair tread plates are pre-drilled with countersunk holes for the cleanest appearance on the underside. Your email address will not be published. can you buy doxycycline over the counter in nz, Designing a Beam Strip Raft Foundation | Worked Example, Engineering Ethics- Developing a Fee Proposal, Cellular Raft Foundation | Worked Example, Do Engineers learn from Structural Failures or were a Weird Bunch, Designing a Reinforced Concrete Retaining Wall. Beams are supported by the columns and run the width of a pergola or shade structure. PDF Detailing Stairs - Aisc Wood stair stringers are a popular choice for commercial or residential stairs because of their relatively low cost and ease of fabrication. Whether the beams are called "stringers" or "girders" has more to do with the general size of the members. More details are given below on this page and also, Watch out: see stair stringer and stair tread cleat or other stair tread support defects & hazards detailed Staircases are made up of an inclined slab called as the Waste and a sequence of connecting steps that connect one floor to the next. 1-1/2" fasteners installed into 1-1/4" LSL stringer will protrude from the opposite side. Routed stair Stringer or Housed Stair Stringer: Product Catalog. These are installed in the field using traditional methods such as hoisting, or by using a traveling crane with special equipment. Stair Stringer (Rolled Steel) Size in Inches Weight Per Ft. Lbs . Yes. Many of the materials used to make stringers are available for about the same price or sometimes cheaper than steel. 2650 Stair Stringer Guide - LVL-E2015: Product . Pole Barn Loftframing size questions - TractorByNet A. Stringer beams are typically assembled with a welded joint at each connection point, but there are other ways that you can attach your stringer to its foundation. More importantly, they show that compliance with OSHA's requirements for the safe use of ladders and stairways could have prevented many of these injuries. Aluminum is a popular choice for stair stringers because of its light weight, excellent corrosion resistance, and ease of fabrication. Nous desservons la grande rgion de Sherbrooke en Estrie, la Montrgie, la grande rgion de Montral et de Qubec. We had no idea there was so much to consider when purchasing stairs! All Concast catalogs and technical brochures. This could make a difference if you have a functional open area under your stairs. What screws to use to install your pull-up rig / pull-up bar to a wall A 210 12-foot board will cost you about $20 at Home Depot, while a 212 12-foot board will cost you about $28. |Stringer Beam Staircase Details | Different Types of Staircase Stringers, Stringer Beam Staircase Details | Steel Stair Stringers |Wood, Stair Stringers |Alluminium Stair Stringers |, How Much do Stairs Stringers Cost? c. Individual stair treads shall be designed for the uniformly distributed live load or a 300-pound concentrated load acting over an area of 4 square inches, whichever produces the greater stresses. This may work in cases where youre using just a few stairs for a single room with multiple levels, such as a sunken living room. 2016 Davibois | Design et programmation du site web: Imacom Communications |, 1 500, Maurice-Bachand Street, Windsor QC J1S0J1 Canadainfo@davibois.ca Or, you may want to use longer and wider board style stringer beams to create a more ornate look for your staircase. How to Build Deck Stairs & Steps | Decks.com First, place the framing square near the end of the board, leaving a few inches at the end. If a stair stringer adjustment makes one of the steps shorter than the others then that'd be a trip hazard and would be improper. The main components of Ford's bridge includes [1] concrete abutment, [2] steel I-beams, [3] pressure-treated 412 stringers, [4]pressure-treated 412 decking, [5] pressure-treated 212 runners and [6] pressure-treated 46 curbs. This stair may be improper in another regard: the total rise or number of steps without an intermediate landing may exceed local building codes. Mono stringers have one stringer cast into a stair tread. When failures do occur with stairs, the size of the notch cut into the stringer is often the culprit. A splice plate is an integral part of construction that is used to make strong, long-lasting joints between two steel members. [43] International Building Code, Stairway Provisions, Section 1009: Stairways and Handrails, retrieved 8/29/12, original source: http://www.amezz.com/ibc-stairs-code.htm [copy on file as IBC Stairs Code.pdf], [44] Model Building Code, Chapter 10, Means of Egress, retrieved 8/29/12, original source: http://www2.iccsafe.org/states/newjersey/NJ_Building/PDFs/NJ_Bldg_Chapter10.pdf, [copy on file as NJ_Bldg_Chapter10.pdf] adopted, for example by New Jersey. If you're going to use guideposts on the lift, you'll want at least a ten-inch cushion. The stringers are already cut and are 12' long. Looking at the chart, if the joists span 10 feet, you can use a 4-by-8 beam with posts spaced 8 feet apart, or a 4-by-12 beam with posts spaced 12 feet apart. You can also make your own Knife by naming a group "theKnife". 819 845-5950. Thanks again, Rich, My house in Westminster CO is just out of warranty and one of the staircase risers has started to visibly deflect (and squeak) when traversing the stairs. W-Beams - American Wide Flange Beams - Engineering ToolBox It is acceptable and within building code guidelines to use either 210 or 212 dimensional lumber to create a set of stairs; however, a stair stringer should not be less than 3.5 inches wide at its narrowest point to provide adequate strength for the load the stairs will be supporting. The single stringer staircase can have a high-tech style when combined with stainless steel hardware and stainless steel railings. The staircase strings or stair stringers are mainly three types cut stringers, closed stringers, and mono stringers. Aluma Beam, Aluminium Beam & Stringer for Formwork System&Shoring Each stringer can be independently supported. A longer set of stairs may not fit in the available space. Consider one-way slab in transversal direction to the edge beam and then the edge beam transferred the reaction force to the landing beam. This modern stair can have a high-tech look with glass treads and stainless-steel rails, or a more industrial appearance with diamond plate steps and wrought iron railing. We are very happy with Acadias services and would recommend them to friends without hesitation.. Kenan Thompson Family,
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I'm building deck stairs with 12 treads, 2 notched plus 2 closed stringers. They are usually inclined secondary beams stemming from primary beams and their basic function is to convert distributed loadings from a slab into point loads which is transferred back to the primary beams or supports. A better option is to drill a 1/4-inch hole at the corner of the notch and cut to the hole. The following analysis demonstrates results of a typical wood-framed stair stringer configuration as well as several similar configurations. Imagine drawing a straight line that would connect the corner of each notch in the stair. If you want a deeper tread, youll have to cut deeper into the board, creating a larger notch and reducing the size of the throat. C channel sizes: stainless steel standard dimensions chart Asia . A lintel is an element of construction used to span or bridge a gap between two structural supports (commonly vertical columns). Most homes use standard-sized I-beams - on the smaller side - and support them with posts. Steve I'd like to see a photo, but yes it's quite possible that someone felt that the stairs were not adequately supported by the stringers so added a post at mid-span. Aluminum and glass will cost far more than a pine railing with pine balusters. 2) Design a waist slab type staircase comprising of a straight flight of steps supported between two stringer beams along the two sides. . The steel stringer ordinarily makes use of steel beams created by passing a steel bar between rollers to create an I-shaped section. Consult the decking manufacturers specifications when using synthetic decking for treads; many require stringers to be spaced no more than 12 inches or 10 inches apart, and some even require spacing as close as 8 inches. - PDF Document from NI, [12] Slips, Trips, Missteps and Their Consequences, Second Edition, Gary M. Bakken, H. Harvey Cohen,A. For the throat to be strong enough to support this load, it should be at least 3.5 inches wide, the same width as a 24. Precast TYE Beam. Notched stair stringers are widely used and are acceptable if sufficient supporting strength is provided. Cut stringers can be spaced no more than 18 inches apart, thus a 3-foot-wide staircase has three stringers, and a little broader set of stairs (say 3 feet 6 inches) requires four stringers. Deck staircases are normally constructed of 2 x 12 stringers spaced 12 to 16 inches apart. More than that, Wellmade is able to open new moulds to produce according to your Aluma Beam design. The steel beam sizes shown are the height in mm (the web) x the width in mm (the flange) x the weight per metre in kilograms, the height and width are measured as if looking at a capital I, hence also being known as I beam. Cut stringers can be spaced no more than 18 inches apart, thus a 3-foot-wide staircase has three stringers, and a little broader set of stairs (say 3 feet 6 inches) requires four stringers. So in the true sense, 28 beams can be used as doubles or triples and are much better and yielding than the 26 beams. 4 (2004). Given how critical the structural integrity of stair stringers is, it almost always makes sense to err on the side of caution and go with 212 lumber. The style of lift size you want will depend on the shape of your hull (V-Hull, Pontoon, V-Drive, etc.) We have all types and shapes of Aluma Beams for Your Primary Formwork Stringer and Secondary Formwork Joints. What Size Screws to Use for Decking Boards, Frame, Railings? A. Do not use deck board screw, use structural screws sold specifically sized to work with structural connectors. Aghayere, Abi, and Jason Vigil. For example, you may want to use stringers that are smaller in size to provide additional structural support where there is an aesthetic need. Raker beams and Seating Units TYPICAL SECTION ALONG PC RAKER BEAM Structural Precast Concrete Contractors Hazelhatch Road, Newcastle, Co.Dublin Email: info@concast.ie Seating Units. Note: appearance of your Comment below may be delayed: if your comment contains an image, photograph, web link, or text that looks to the software as if it might be a web link, your posting will appear after it has been approved by a moderator. Instead, cut to the line with the circular saw, then use a hand saw to finish the cut. 2. The Company distributes steel products and conducts its distribution business in three principal business segments: metals service centres; energy products and steel distributors. Its important to understand that while this treatment makes the wood more resistant to weather and pests, it does not make the lumber structurally stronger. They include risers (also known as toe kicks), treads, and railings. 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The stair waste itself require steel bars at the top in-order to accommodate the imposed tensile stresses on the cantilever. Permanent action includes the weight of the stair waste, weight of steps, load from finishes and balustrades. My reason to want the pvc on the bottom is to prevent wood rot of acq pressure treated lumber on a concrete slab in constant rainThank you. "Design of a Glass Stair." | Uses of Papercrete | Advantages and Disadvantages of Papercrete, Construction Calculator: Simplified Construction Cost Calculator, What is Stringer Beam? PhD diss., Milwaukee School of Engineering, 2010. Even with this connection, reflective cracking can occur in the overlay pavement. Multiple stringers use multiple stringer beams that are bolted or screwed to the riser and tread joints. How should stair support stringers be constructed and connected, what alternative materials can be used & what are the stair stringer building code specifications for strength & load bearing requirements. Versa-Lam laminated veneer lumber (LVL) beams and headers lead the industry in bending strength and E-value, offering better performance and longer spans. Roof Rafter Spacing and Sizing: Complete Guide - Plasticine House Common industry spacing for rafters is 12", 16", 19.2", and 24" on-center with other spacing used where design, climate conditions, and Engineers identify them. An open stringer is a stringer without any riser and tread. Other articles where stringer is discussed: beam: loaded longitudinal beams are the stringers; the heavier, transverse members are called floor beams. but the stringer cutouts are not at 90 degrees. The width of the stair can be up to 42 in this design without additional steel support under the tread. I-Beams Design The Aret team uses FRP I-beams for the stringer bridge design. Some companies also offer engineered wood that can be used for stringers, which also offer better strength qualities. The Ultimate Pergola Size Guide - Structureworks Interchangeable for left or right applications LSCSS features a Stainless Steel coating for additional corrosion protection. Calculate Fill in dimensions, mm: Opening height: Y Opening length: X Width of staircase: Stair thickness: Z Stair nosing: F Stringer thickness: A Supports thickness: B Above stringer stair height H Dimension: D Angle: U Amount of stairs: C Top stair is below the floor: SP Drawing in black and white: Change staircase direction: LR Calculate document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); 845-765-8600 Field slopeable to all common stair stringer pitches, the LSCZ connector is suitable for either solid or notched stringers. A. Stringer beams are typically made from steel, aluminum, or wood. STAIR STRINGER SPECIFICATIONS at InspectApedia.com - online encyclopedia of building & environmental inspection, testing, diagnosis, repair, & problem prevention advice. Is it to code to cut 5/8" off the bottom of stair stringers and affix a 5/8" thick piece of pvc to keep the wood up off the wet pavement? Tabs on the LSC must be positioned to the inside of the stairs. OSHA estimates that there are 24,882 injuries and as many as 36 fatalities per year due to falls from stairways and ladders used in construction. In fact, I live downstream from the property . The stair tread plates are pre-drilled with countersunk holes for the cleanest appearance on the underside. Your email address will not be published. can you buy doxycycline over the counter in nz, Designing a Beam Strip Raft Foundation | Worked Example, Engineering Ethics- Developing a Fee Proposal, Cellular Raft Foundation | Worked Example, Do Engineers learn from Structural Failures or were a Weird Bunch, Designing a Reinforced Concrete Retaining Wall. Beams are supported by the columns and run the width of a pergola or shade structure. PDF Detailing Stairs - Aisc Wood stair stringers are a popular choice for commercial or residential stairs because of their relatively low cost and ease of fabrication. Whether the beams are called "stringers" or "girders" has more to do with the general size of the members. More details are given below on this page and also, Watch out: see stair stringer and stair tread cleat or other stair tread support defects & hazards detailed Staircases are made up of an inclined slab called as the Waste and a sequence of connecting steps that connect one floor to the next. 1-1/2" fasteners installed into 1-1/4" LSL stringer will protrude from the opposite side. Routed stair Stringer or Housed Stair Stringer: Product Catalog. These are installed in the field using traditional methods such as hoisting, or by using a traveling crane with special equipment. Stair Stringer (Rolled Steel) Size in Inches Weight Per Ft. Lbs . Yes. Many of the materials used to make stringers are available for about the same price or sometimes cheaper than steel. 2650 Stair Stringer Guide - LVL-E2015: Product . Pole Barn Loftframing size questions - TractorByNet A. Stringer beams are typically assembled with a welded joint at each connection point, but there are other ways that you can attach your stringer to its foundation. More importantly, they show that compliance with OSHA's requirements for the safe use of ladders and stairways could have prevented many of these injuries. Aluminum is a popular choice for stair stringers because of its light weight, excellent corrosion resistance, and ease of fabrication. Nous desservons la grande rgion de Sherbrooke en Estrie, la Montrgie, la grande rgion de Montral et de Qubec. We had no idea there was so much to consider when purchasing stairs! All Concast catalogs and technical brochures. This could make a difference if you have a functional open area under your stairs. What screws to use to install your pull-up rig / pull-up bar to a wall A 210 12-foot board will cost you about $20 at Home Depot, while a 212 12-foot board will cost you about $28. |Stringer Beam Staircase Details | Different Types of Staircase Stringers, Stringer Beam Staircase Details | Steel Stair Stringers |Wood, Stair Stringers |Alluminium Stair Stringers |, How Much do Stairs Stringers Cost? c. Individual stair treads shall be designed for the uniformly distributed live load or a 300-pound concentrated load acting over an area of 4 square inches, whichever produces the greater stresses. This may work in cases where youre using just a few stairs for a single room with multiple levels, such as a sunken living room. 2016 Davibois | Design et programmation du site web: Imacom Communications |, 1 500, Maurice-Bachand Street, Windsor QC J1S0J1 Canadainfo@davibois.ca Or, you may want to use longer and wider board style stringer beams to create a more ornate look for your staircase. How to Build Deck Stairs & Steps | Decks.com First, place the framing square near the end of the board, leaving a few inches at the end. If a stair stringer adjustment makes one of the steps shorter than the others then that'd be a trip hazard and would be improper. The main components of Ford's bridge includes [1] concrete abutment, [2] steel I-beams, [3] pressure-treated 412 stringers, [4]pressure-treated 412 decking, [5] pressure-treated 212 runners and [6] pressure-treated 46 curbs. This stair may be improper in another regard: the total rise or number of steps without an intermediate landing may exceed local building codes. Mono stringers have one stringer cast into a stair tread. When failures do occur with stairs, the size of the notch cut into the stringer is often the culprit. A splice plate is an integral part of construction that is used to make strong, long-lasting joints between two steel members. [43] International Building Code, Stairway Provisions, Section 1009: Stairways and Handrails, retrieved 8/29/12, original source: http://www.amezz.com/ibc-stairs-code.htm [copy on file as IBC Stairs Code.pdf], [44] Model Building Code, Chapter 10, Means of Egress, retrieved 8/29/12, original source: http://www2.iccsafe.org/states/newjersey/NJ_Building/PDFs/NJ_Bldg_Chapter10.pdf, [copy on file as NJ_Bldg_Chapter10.pdf] adopted, for example by New Jersey. If you're going to use guideposts on the lift, you'll want at least a ten-inch cushion. The stringers are already cut and are 12' long. Looking at the chart, if the joists span 10 feet, you can use a 4-by-8 beam with posts spaced 8 feet apart, or a 4-by-12 beam with posts spaced 12 feet apart. You can also make your own Knife by naming a group "theKnife". 819 845-5950. Thanks again, Rich, My house in Westminster CO is just out of warranty and one of the staircase risers has started to visibly deflect (and squeak) when traversing the stairs. W-Beams - American Wide Flange Beams - Engineering ToolBox It is acceptable and within building code guidelines to use either 210 or 212 dimensional lumber to create a set of stairs; however, a stair stringer should not be less than 3.5 inches wide at its narrowest point to provide adequate strength for the load the stairs will be supporting. The single stringer staircase can have a high-tech style when combined with stainless steel hardware and stainless steel railings. The staircase strings or stair stringers are mainly three types cut stringers, closed stringers, and mono stringers. Aluma Beam, Aluminium Beam & Stringer for Formwork System&Shoring Each stringer can be independently supported. A longer set of stairs may not fit in the available space. Consider one-way slab in transversal direction to the edge beam and then the edge beam transferred the reaction force to the landing beam. This modern stair can have a high-tech look with glass treads and stainless-steel rails, or a more industrial appearance with diamond plate steps and wrought iron railing. We are very happy with Acadias services and would recommend them to friends without hesitation..
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Brownsville Police Department Inmate List 2021,
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