Presenter, specialized roof steel deck

Presenter, specialized roof steel deck

The activities of the cohesive collection, the following breakdown is: 1) forming sheet steel deck with step 65 and 75 mm 2) trading and selling hardware for installation 3) Services, installation and implementation of the specialized sheets of steel deck, along with all hardware (گلمیخ and میخوپرچ ...) 4) storage sheet related to customers, which complements wage, have collaborated 5) specialized consultation and detailed calculations

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Book characteristics of the The implementation of ceiling, composite steel deck : Ceiling, composite steel deck, in total, contains four types of materials that include : A) Steel Sheet B) برشگیر C) armature D) concrete Here, according to their profile, we will : A) Steel Sheet (Steel Sheet ) Steel sheet of most materials, this type of roof is to build it galvanized steel sheet with a thickness of, 0٫8تا 1٫2 mm by means of devices Roll Formingبه, cold rolling mill, Cold Forming mode, and the corrugated shaping them so that in a cross section of the sheet obtained each wave the shape of a trapezoid. To calculate the characteristics of geometrical cross section must also observe the terms of the existing height ذوزنقهها (عمقکنگره) maximum 75میلیمتر and also average width of Congresses, filled with concrete, don't have less than 50میلیمترباشد . These sheets must be in their lives (part of inclined plate) has فرورفتگیها and برجستگیهایی the conflict Interlock between steel and concrete to create . During the process of loading, carrying and دپوی these sheets must be carefully necessary to avoid deformation, Deformation of them . B) برشگیر (Stud Shear Connector ) برشگیرها or flowers, it is certain that this type of roof is used to the direction of the type of materials and methods specific run one دیگرازنقاط strengths this type of roof can be considered. The diameter of this برشگیرها maximum 20 mm and their height depending on the shape of the steel sheet varies, and, finally, the minimum height گلمیخ after installing that from the top of the sheet, trapezoid measured should not be less than 40میلیمتر . This flower, other garden supplies (by welding machines, Arc certain that the Stud Welder is read to wing beams, structural welding. This welding process can be used also directly on the wing, shooting games, musical instruments, done Direct Attach Welding of the steel sheet be done Through the Sheet Welding prior to placement گلمیخ a ring of ceramic in place of welding is used up from the pond melt created at the moment of creation electric arc protection . C)reinforcement ( Reinforcement ) Armature in four cases, the following should be implemented :

1. resist the anchor negative in the mouths of the continuous and the console
2. loads concentrated or open شوها
3. armature thermal
4. resist the anchor, positive if the yield-tensile steel sheet, regardless. آرماتوربندی the ceiling if using bars, ribbed, trendy and available in the market be somewhat time-wasting (relative to the other stages of the implementation of this type of roof) will be, but if you use the meshes آمادهFabric Reinforcement this stage of the implementation of the ceiling is also quickly acceptable the case will admit, of course, this meshes ready, must comply with the standards related ... carry and install are . D) concrete Resistance, compressive strength of concrete used with respect to the lightweight concrete or regular concrete used can be 200 up 300 kg / cm square variable. that according to the type of loading and the profile of the openings will determine the . When calculating the profile, the geometric cross-section should be to the direction of the congresses, steel sheet compared to the TIR instruments available accuracy.Because in the case of the perpendicular being represented on the rafters, etc. from existing concrete below the upper surface of the sheet, trapezoid should be, regardless . The thickness of the concrete slab at the top of Congress sheet trapezoid should not be 50میلیمتر less.With regard to the issue in case of using steel sheet with the height of the maximum 75میلیمتر the sum of the thickness of the roof 125میلیمترخواهد . Another approach to accelerate the implementation of this ceiling is the use of concrete, fibers, polymer or steel Fiber Reinforced concrete is used it can be آرماتوربندی in most parts of the steel deck removed, of which, of course, preparing, carrying and pouring, it must be with a certain accuracy based on the ritual mailings relevant . The steps run: 1 – skeleton ready AsBuilt can be prepared to exact measurements. 2 – sheets of raw first has been rolled out and according to the size of the existing cut, package and send. 3 – due to the performance compound this roof in connection with structures and also components, integral roof connecting these roof structures into the intermediary برشگیر some. Now two superior technology in connection with the installation of برشگیر there. 3 - 1 - In this method, the plate with Shear Connectors (برشگیرهای) and the special Stud, and seasoned to the rafters beat the sub and Main is sewn. 3 - 2 - in this method, the sheets form given by گلمیخ (برشگیر with induction welding) is a device for Stud Welding to beams, main and sub-ممدوج been connected 4 - to avoid ترکخوردگی and جمعشدگی concrete should be of wire mesh, thermal fibers or polypropylene is used. Grid reinforcement with the smallest size can be used as reinforcement of fire resistant also. 5 – بتنریزی at this stage, with the supervision of Engineers., the amendment, the lining is shed by the male butterfly to accelerate the operation of flooring manufacture is that the design of the standard BS1 has the least compressive strength 28روزه, etc. sample cubic 250کیلوگرم per cubic centimeter should be. Steps to install: Install steel plates with high speed is performed because it is sufficient, after picking up the sheets and cover band ... aided devices nailer ... sheets in place, the living room, on the beams of the instruments proved after this step that must be simultaneous or immediately after the picking sheets. گلمیخها install and then آرماتوربندی and finally بتنریزی will be done. As mentioned, the implementation of this ceiling, one after another with high speed is performed, and according to this thread that for the implementation of the ceiling, composite steel deck does not need to شمعبندی not (span 3 km) there is a possibility that several of the ceiling simultaneously after the install, sheets, etc. ثابتکردن them and install flower other garden supplies (and enforcement آرماتوربندی and بتنریزی. this has caused is up in tall buildings en masse, which is usually the installation structure, more quickly are the other with the problem of low speed run ceilings faced before. What is here to be noted is that in some projects, construction, structures based on the type of roof, the other is designed so the beams subsidiary must be new and according to the technical specifications of the ceiling, composite steel deck design ... the roof normally spans 3 km without the need to شمعبندی the ability to run there which means that دهانهای to the length of the 6متر without the need for plugs, and just installed a TIR sub by this type of ceiling will not be applicable. Usually, for the mouths of the over 3متر of شمعبندی temporary Temporary Propping is used, which, depending on the needs and conditions of one or two rows of piles will be used. Topics technical : Methods design : Basically, the two methods, the overall bypass design, this kind of ceiling there are A) The steel sheet as a template, viable (Permanet Shuttering ) B) steel sheet, as elements tensile ( Tensile Component ) A third method, the other is also there; that the design based on the results obtained from a series of experiments the standard of conduct, accepts that this requires the construction of examples with high precision and then do the tests mentioned with the lotion, and the specific algorithm and finally getting outputs usable from them. A ) The steel sheet as a template viable In this method, the design, functionality, tensile strength sheet steel cross-section regardless. in other words, the steel sheet as a template, the look, and they must be able to withstand live loads (instruments and personnel) available to step بتنریزی also weight concrete, wet and dry, which is, of course, after the setting of concrete does not need to دکفراژ not until the end of the lifetime of the building will remain. In this case, in fact, from performance, Contribution, musical instruments, sheet steel overlook, and the roof as a slab of reinforced concrete is considered the How to design, causes the amount of reinforcement of the computational cross-section more because that must be to place the steel sheet also bearing stretch students participate. Designers in this mode, usually this آرماتورهای stretching the درکف meetings of the Central Committee and put them آرماتورهای longitudinal Longitudinal Reinforcement call . B) steel sheet, as the elements of tensile In this method, the steel sheet as the elements of the tensile cross-section is considered and the cross section of the resulting form of the compound Compositeعمل. in fact, in this mode, The Clash, concrete and steel sheet to an extent sufficient that during the resistance against the anchors are used and the cuts available with each other acted and suffered a slip, relative to each other are not. Designed with the use of these assumptions اقتصادیترین the roof to die, because that reduces the reinforcement of the computational cross-section will be. Though in terms of getting properly, these assumptions are subject to having detailed information of the geometrical parameters of the sheet and the behavior of the joint Interaction of concrete and steel sheet industry. In the calculations related to the steel deck, the following consider take:

• According to the discussion of moment of inertia, volume, concrete consumption and the weight of the roof اقتصادیترین to cut and bend the sheet is determined. The deck as the steel in the cross section of reinforced concrete.
• Compared to determine the location of the تارخنثی and the equation of balance of relevant and guess the initial thickness of the appropriate sheet action. It should be noted that due to the shape of the cross section of the entire thickness of the interior not filled completely, the volume is about 49درصد is that this problem in the calculation of the steel deck and the situation of Burberry it determines.
• After taking the amount of concrete on the deck, The weight of the concrete instruments will be calculated and according to that deck from the abutment in a continuous passes, or vice versa, at the time of setting the initial concrete maximum stresses peaks and troughs is computed (the maximum tensile stress to fy0.6 and the maximum tensile stress for 0.2 fy, and maximum Skip to the L/180 limit is).
• In case of suitability of these cases, the thickness of the in try initial approved have been otherwise, should be increased, and again the above control.
• Control the load caused by the weight of the workers at the time بتنریزی ( apply 120کبلوگرم focused in the middle of the span), be sure to consider the will be).
• At a later stage, control of the maximum steel allowed cross-section (ρmax = 0.025), which is, if required, the height of the concrete is increased, we. Then the load of the roof and calculate the deck after setting of the concrete will be, namely, after determining the times the dead and the living roof and the use of the combinations of loading 1.7 LL + 1.4 DL, and calculate the moment of the resistant cross-section concrete., the ratio of moment-resistant deck to the moment incurred, the ratio larger than one. Finally control, skip the deck after setting concrete, contains no caused by live loads are short duration, skip caused by loads dead after setting of the concrete in the long term and the sum of them. It is noted that control at least cover the concrete slab with respect to the duration time of a fire to the extent of at least 90 minutes doing the dumping. Method of stud stuffing: In this method, the plates form given by برشگیرهای for that size them according to the design, carried out the calculation and reliable choice is with the stud and the stuffing for the beams, the main and subsidiary is sewn. Unfortunately, the lack of attention to the Brand of choice of stud, stuffing (Chinese, Taiwan,...) by anchors غیرفنی cause the lack of available in a test cut required is. All Stud and condiments used in industrial and commercial پایادک all have the Certificate. Method of induction welding In this system, the plates form given by برشگیرهای for that size them according to the design, carried out the calculation and can be selected. by the induction welding to beams, the main and the sub-matching global standards AWS-D. 1.1 attached and each of the cutting گیرهای attached 10تن ability to tolerate the cutting without change of form and having that sample tested in the CD accompanying folder, are considerable. Roll Forming: Group صنعتیبازرگانی پایادک with the use of updated technology and use the experiences of 30-year-old professionals attempted to build the device, Roll Forming has now provided with rolled differently. for ceilings متادک, etc. ready to provide the best rolling in qualitative terms and quantification, to colleagues and employers. Software The direction of modeling and designer ceilings, composite steel deck software ETABS and software for the design of this roof that the capability of modeling the roof in different positions and in considering the elements variable, the ceiling (the thickness and shape of the steel sheet, شمعبندی or without شمعبندی, thickness دالبتنی in. rebar, etc., stud, etc.) have is used.