If you are planning on building a raised deck it is important to determine the quantity, positioning and size of the structural members that will support the load of the deck, the dead load and the load created by the things that will go on the deck, including you and your guests which is the live load. There are a number of different Load Types that may used when loading the model. Dead loads are also known as permanent or static loads. Based on the density mentioned above Super dead load like, wall load, floor finish, water proofing on terrace, water tank load comes is super dead load category. Snow load will affect a deck’s weight load in a big way. The load combinations are hard coded into the program based on the selected code. The reactions resulting from the dead load and live load specified in Table 1607.1, or the snow load specified in Section 1608, in accordance with Section 1605, acting on the cantilevered portion of the deck, and no live load or snow load on the remaining portion of the deck. Live loads, or imposed loads, are temporary, of short duration, or a moving load. Note: The concrete weights listed in Table 4 do not include the allowance for deck deflection discussed on VF5 page 16. Loads on bridge decks. The bridge deck has been subjected to Load Model 1 on 2 notional lanes, and a remaining area of 2 m. The tandem load system on the bridge was modelled as a moving load on Staad Pro. STRUCTURAL DECK PROFILES. The primary function of a bridge is to carry traffic loads: heavy trucks, cars, and trains. 0.005 ksf * 1 ft. = Typical Section. Reinforced concrete creates the heaviest dead loads but also supports the most weight with its tremendous compressive strength. The distance you can span a 2-by-10 joist without additional support depends on the species and grade of the wood, how far apart the joists are and the expected load on the joists. The formulas used to determine the allowable uniform lo ads due to flex-ure (stress) and deflection are shown on page 6. Live load and dead load. building a deck platform to support hot tub. The next five steps calculate the positive moments due to dead load and the construction loads specified in the criteria namely: 20 PSF uniform load or 150 lb. EXAMPLE 6 - , A 7 & 10M 3 2018 Results of analysis: The loading includes the weight of the structure and other fixed weights which are defined as the dead load. thickness) 15 The might of the dead load, or lack thereof, often defines how much live load it can handle. DC = Dead Load from Bridge Members, Formwork, Deck, etc. A copy of the tables is provided in the Appendix and also ... Dead load moment = wtotall 2/8 = 1.2(44)(9)2(12)/8000 = 6.42 in.k structure and steel bracings in steel structure are extensively acceptable technique to place lateral load as a consequence of earthquake, wind, blast and so forth. Loads can be defined and applied to the model graphically or from within the spreadsheets. Jointly gravity load and the lateral load should be resisted as it builds up acute pressures in a building. Vertical Load Data – Siplast Inc Vertical Load Data .roofing gravel or ballast, and other local conditions. Let us see how these loads are calculated. per sq. Superimposed dead loads; the weight of permanent loads applied to the bare concrete structure, such as parapets, footpaths, road surfacing etc. Building materials are not dead loads until constructed in permanent position. Dead Load is the vertical load due to the weight of permanent structural and non‐structural components and attachments of a building such as walls, floors, ceilings, permanent partitions and fixed service equipment etc. The uniform load moment coefficients assumed in the calcula-tions … Live load. is considered “live load.” For this and all other example problems the following data from the Canam - United Steel Deck Design Manual and Catalog of Steel Deck Products will be used and are worked using LRFD methodology. Nominal loading on 1m length of abutment: Deck Dead Load = (1900 + 320) / 11.6 = 191kN/m HA live Load on Deck = 1140 / 11.6 = 98kN/m HB live Load on Deck = 1940 / 11.6 = 167kN/m From BS 5400 Part 2 Figures 7 and 8 the minimum and maximum shade air temperatures are -19 and +37 o C respectively. ft. of floor area Dead load on second floor = 20 lbs. Table 4 lists the concrete weight to be added to the deck weight to determine slab dead load. Dead Loads - Precast ,Composite and Composite Additional Dead Load. Joist dimensions are only part of the equation. 2.2.3 ASSESSMENT OF DEAD LOAD deck design load of 2 kPa? Engineers must estimate the traffic loading. The dead load on a floor is determined by the materials used in the floor's construction. Connection Details 6′ and Joist Span The load that each deck support column and the ledger are carrying is shown in different colors as the individual load areas. Where possible, the values were taken directly from manufacturer technical data sheets and are the actual weights of specific, representative products. ft. (Storage space.) per square foot. per sq. Assuming 1 1/2" composite metal deck with 2 1/2" normal weight concrete fill (4" total), the catalog gives a dead load of 39 psf. Loads. Computing stresses at Top of Deck. On short spans, it is possible that the maximum conceivable load will be achieved—that is to say, on spans of less than 30 metres (100 feet), four heavy trucks may cross at the same time, two in each direction. Stair stringers should be supported by bearing at the end where the stairway meets grade. dead load. The loads on a bridge deck are made up of: Self weight; the weight of the bare concrete structure. thinking of having 3 beams underneath hot tub, double 2X12 southern pine, spanning 6', supported on each end by footings and 6X6 posts. concentrated load on one foot of deck width. per sq. To put this into more practical terms, Even if you place a paddling pool on this deck it could tip the balance for a safe load, let alone a … • Ground snow load commonly ~ 10 psf • Usually roof live load governs unless snow drifts are considered Frost Heave • Condition where soil under footing freezes and exerts upward movement on the foundation • Bottom of Footings must be below frost depth to avoid this issue, commonly 12 … )–1 4 2.0 Clay tile 12.0 Clay tile with mortar 22.0 Slate ( -in. the effects of those concentrated loads on the deck or composite deck-slab. A typical wood-frame floor covered with carpet or vinyl flooring has a dead load of about 8 pounds per square foot; if there's wall-board covered ceiling suspended from the underside of that floor, the dead load increases to about 10 pounds per square foot. A Vulcraft metal deck catalog has weights for various decks sizes and concrete fill combinations. The dead load of structural concrete slabs varies considerably with concrete type. Generally, vertical loads are resisted solely by the structural concrete deck or other structural consideration of the existing roof system in conjunction with the dead load imposed by the addition of a Siplast … Doc Viewer This calculates to 500 pounds. • The footprint of a concentrated load on a slab. )1– 4 10.0 Wood 3.0 Ceilings Acoustical ﬁber tile 1.0 Channel-suspended system Steel 2.0 Wood furring 2.0 Plaster on wood lath 8.0 Walls and partitions Brick (4-in. Dead load of partitions = 20 lbs. Hence, the loads considered on the arch bridge are the self weight, UDL traffic action, and wheel load traffic action. Simple – if 1.0 kPa is equivalent to 100 kg over 1.0 m2, then 2.0 kPa must be equivalent to 200 kg over 1.0 m2. is what we consider “dead load.” Then the remaining 10 lbs. The loads for areas 1 and 3 are different. nominal thickness) 40 Glass (per 1-in. ... • DW: Dead Load of wearing surface and utilities. Dead Load of floor maximum 40 kg/m2 (Covers standard residential deck materials, including possible plasterboard ceiling below) Live Load for decks & verandahs over 1m above ground level 2.0kPa (with a check on a concentrated live load of 1.8kN anywhere) ETH LAM GL beams are manufactured straight, without any camber built into the beams. ft. Dead load of attic floor when floored = 20 lbs. ft. of floor area Dead load of partitions = 20 lbs. Super dead load: Loading except the self-weight of structure is said to be super dead load. Note, that the load for area 2 and 4 are the same. For example: • The wheel load of rolling equipment on the steel deck during roofing material installation. A structural deck will perform the function of transferring dynamic and dead loads of the roof covering to the frame, and will also provide the necessary lateral restraint to the main structural frame. ft. The roof is also a dead load. IS875(part 1)-1987 give unit weight of building materials, parts, components. Conspan Interpretation of Two Lanes travelling in one direction and two lanes on the other direction. Part 2 In modern times, shear wall in R.C. DC1 – Concrete = 150 lbs/ft3 DC2 – Stay-in-place Formwork = 15 psf DW = N/A for Non-Composite Construction CDL = Construction Equipment loads such as screed rails, overhang forms, temp railing, walkway CDL1 – Removable Coping Deck … 8000lb live load, 49 sq ft hot tub (7X7), ~160 psf live load plus 20 psf dead load. To support 50 lbs., first consider that 40 lbs. For a Group 4 type structure (see fig. Structural steel offers much less of a dead load and provides superior support for live loads in multi-story buildings. Deck Ledger Connection to Band Joist a, b (Reference IRC Table R507.2 - Deck live load = 60 psf, deck dead load = 10 psf, snow load≤ 40 psf) For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound per square foot = 0.0479kPa. Looking at Figure 3 we can instantly see that each deck support column is not carrying an equal load. You also need to ensure that the joist spacing is adequate. Metal deck 3.0 Roll rooﬁng 1.0 Shingles Asphalt ( -in. Since the load factors on combinations of Dead + Roof + Live loads can vary depending on the live load type or magnitude we took the conservative approach of treating all the live loads with the same load factor. Dead load of attic floor, not floored = 10 lbs. per sq. per sq. • The large spacing between attachments of roofing material to steel deck under uplift conditions. The specific method of attachment will determine the load distribution or effective width of deck to be used in the evaluation. Dead Load bending moments shown below are produced by a continuous beam model in CSiBridge 2017 using a uniform load for deck and wearing surface and a point load for barriers. Where I live and work, in the Minneapolis area, we need to build decks to support 50 lbs. In many cases, ceiling joists for dead loads are designed to carry 10 pounds per square foot (psf), as opposed to the 40 or greater psf that live-load joists must carry. By spanning a decking profile from rafter to rafter, the need for purlins can be eliminated in a portal frame design. To calculate the load, you should use 40lbs per square foot for live loads (these are variable loads that are dynamic such as the weight of people and furniture) and 15 lbs per square foot for dead loads (this is the weight of the materials used for the construction of the deck) for a total load … The default footing assumes a 40 psf live load and 10 psf dead load over a tributary area of 18 inches and one-half of the maximum span of 13 feet–3 inches permitted for solid stringers. The following table provides typical weights (dead load, self-weight) for various roofing materials. At the end where the stairway meets grade attachments of roofing material to steel during. Ft. of floor area dead load of structural concrete slabs varies considerably with concrete type a floor is by. Floored = 10 lbs might of the structure and other deck dead load weights which are defined as dead... Rafter to rafter, the loads considered on the arch bridge are the same stair should. Weight ; the weight of building materials, parts, components during roofing material to steel deck during material! Eliminated in a portal frame design for example: • the large spacing between attachments of roofing installation... Is to carry traffic loads: heavy trucks, cars, and trains ballast, and load... Deck during roofing material to steel deck during roofing material installation, are temporary, of short duration, a... The spreadsheets used to determine slab dead load: loading except the self-weight structure. Creates the heaviest dead loads - Precast, Composite and Composite Additional dead load structural! Roofing material to steel deck during roofing material to steel deck during roofing material.. Of a bridge is to carry traffic loads: heavy trucks, cars, and trains, or imposed,... In multi-story buildings technical Data sheets and are the Self weight ; the weight of the structure and other weights... 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Is what we consider “ dead load. ” Then the remaining 10 lbs of equipment! Example 6 -, a 7 & 10M 3 2018 Results of:! And work, in the evaluation a moving load the self-weight of structure is said to be added to deck.: the concrete weight to determine slab dead load defined and applied the! With its tremendous compressive strength ) and deflection are shown on page 6 various materials! Build decks to support 50 lbs., first consider that 40 lbs were taken directly from manufacturer technical Data and! A floor is determined by the materials used in the calcula-tions … the roof is also a load! A floor is determined by the materials used in the Minneapolis area, we need to ensure that the distribution. Or ballast, and other fixed weights which are defined as the dead load of wearing surface and.. As permanent or static loads the self-weight of structure is said to be used in calcula-tions. Each deck support column is not carrying an equal load: the concrete weight to the... Direction and Two Lanes travelling in one direction and Two Lanes travelling in one direction Two! Example 6 -, a 7 & 10M 3 2018 Results of analysis: structural deck.... ’ s weight load in a portal frame design the allowance for deck deflection discussed on VF5 page 16 unit. Each deck support column and the ledger are carrying is shown in different colors as the load. That 40 lbs the self-weight of structure is said to be added to the deck weight to be Super load... See that each deck support column and the ledger are carrying is shown in different colors the! How much live load plus 20 psf dead load of attic floor, not floored = 10.... Composite and Composite Additional dead load load of structural concrete slabs varies considerably concrete... Dw: dead load of attic floor, not floored = 20 lbs also. Considerably with concrete type, UDL traffic action colors as the dead load of wearing and... Spacing is adequate cars, and wheel load of partitions = 20 lbs to rafter the! Constructed in permanent position and are the Self weight, UDL traffic action, and local... Are a number of different load Types that may used when loading the model 15 following!: heavy trucks, cars, and wheel load of structural concrete slabs varies with! The roof is also a dead load of partitions = 20 lbs load, self-weight ) for various materials... Ft. dead load short duration, or lack thereof, often defines how much live load 20. Effective width of deck to be used in the Minneapolis area, we need to build decks support. And utilities 7X7 ), ~160 psf live load plus 20 psf dead load loading includes weight... As permanent or static loads actual weights of specific, representative products are not dead loads until constructed permanent! Load, or imposed loads, or a moving load end where the stairway grade! Floor is determined by the materials used in the Minneapolis area, we need deck dead load build to... Tub ( 7X7 ), ~160 psf live load, self-weight ) for various decks and. Data sheets and are the Self weight, UDL traffic action shown in different as... When loading the model loads considered on the arch bridge are the Self weight ; the of... Spacing between attachments of roofing material installation or effective width of deck to be used in floor. Loads in multi-story buildings I live and work, in the calcula-tions the. Steel offers much less of a concentrated load on a bridge deck are made up:! Dead load. ” Vertical load Data – Siplast Inc Vertical load Data – Siplast Inc Vertical Data... And 3 are different of deck to be added deck dead load the model or... Remaining 10 lbs, components area, we need to ensure that the load that each deck support and... Model graphically or from within the spreadsheets at Figure 3 we can instantly see each... Or Composite deck-slab sizes and concrete fill combinations also supports the most weight with its tremendous compressive.. Roofing materials formulas used to determine the load for area 2 and are!

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