Sommer Informatik GmbH Manual GlasGlobal Sommer Informatik GmbH Sepp-Heindl-Str.5 83026 Rosenheim Tel. 08031 / 24881 Fax 08031 / 24882 www.Sommer-Informatik.de [email protected] Manual GlasGlobal v6.1 Sommer Informatik GmbH, Sepp-Heindl-Str.5. 13, 83026 Rosenheim, Tel. 08031–24 881 Page - 1 - Sommer Informatik GmbH Manual GlasGlobal 1 IMPORT DATABASE GLASGLOBAL V2.5 (PROJECTS, USERS) .................................................. 4 2 TOOLBAR ........................................................................................................................................... 5 3 PROJECT DATA ................................................................................................................................. 6 4 NAVIGATION - PROCESSES ............................................................................................................. 6 5 SPECIFICATIONS ............................................................................................................................... 6 5.1 5.2 5.3 CHARACTERISTIC STRENGTH .......................................................................................................... 7 LIMIT OF DEFLECTION..................................................................................................................... 8 COUNTRY SETTING FOR WIND AND SNOW LOAD ............................................................................... 8 6 PROJECT DETAILS............................................................................................................................ 9 7 GEOMETRY ...................................................................................................................................... 10 7.1 7.2 7.3 7.4 7.5 7.6 8 PANE .......................................................................................................................................... 10 INSTALLATION ANGLE ................................................................................................................... 10 SHAPE (GEOMETRY) .................................................................................................................... 10 SUPPORT .................................................................................................................................... 11 MEASURES.................................................................................................................................. 11 MEMBRANE STRESS ..................................................................................................................... 11 SECURING GLAZING ....................................................................................................................... 12 8.1 CATEGORY A .............................................................................................................................. 12 8.2 CATEGORY B .............................................................................................................................. 13 8.2.1 Restrictions ........................................................................................................................... 13 8.2.2 Proof failure element ............................................................................................................. 13 8.3 CATEGORY C1 ............................................................................................................................ 14 8.4 CATEGORY C2 ............................................................................................................................ 15 8.5 CATEGORY C3 ............................................................................................................................ 15 8.6 PROOF OF SHOCK RESISTANCE .................................................................................................... 16 8.6.1 Tabular method (DIN 18008-4, attachment B) ..................................................................... 16 8.6.2 Simplified verification procedure (DIN 18008-4, attachment C.2) ........................................ 17 9 DEFINE STRUCTURE - PRODUCT ................................................................................................. 18 9.1 DEFINE PANE............................................................................................................................... 19 9.1.1 Type of glass......................................................................................................................... 19 9.1.2 Single glazing........................................................................................................................ 19 9.1.3 LSG ....................................................................................................................................... 20 9.1.4 Basis glass ............................................................................................................................ 21 9.2 DEFINE GD ................................................................................................................................. 23 9.3 SEARCH PRODUCT ....................................................................................................................... 24 9.4 SAVE STRUCTURE AS PRODUCT (ONLY ADMIN) .............................................................................. 24 10 WIND AND SNOW LOAD ................................................................................................................. 25 10.1 GENERAL .................................................................................................................................... 25 10.1.1 Wind loads according to EN 1991-1-4.............................................................................. 25 10.1.2 Snow loads according to EN 1991-1-3 ............................................................................. 26 10.2 MODULE CALL ............................................................................................................................. 27 10.3 INSTALLATION PLACE ................................................................................................................... 27 10.3.1 Load influence area .......................................................................................................... 27 10.3.2 Location information ......................................................................................................... 28 10.3.3 Terrain categories............................................................................................................. 30 10.3.4 Snow load zones .............................................................................................................. 31 10.4 BUILDINGS .................................................................................................................................. 32 10.5 UNIT/ROOF .................................................................................................................................. 32 10.6 ANALYSIS .................................................................................................................................... 34 10.6.1 Manual input ..................................................................................................................... 34 10.6.2 Superposition wind outside and inside ............................................................................. 35 11 CLIMATE STRESS............................................................................................................................ 36 12 ALTITUDE ......................................................................................................................................... 37 Sommer Informatik GmbH, Sepp-Heindl-Str.5. 13, 83026 Rosenheim, Tel. 08031–24 881 Page - 2 - Sommer Informatik GmbH Manual GlasGlobal 13 UNIFORM LOAD ............................................................................................................................... 38 14 LOAD CASE COMBINATIONS ........................................................................................................ 39 15 RESULT ............................................................................................................................................. 40 16 STRING SHORTENING .................................................................................................................... 41 17 TENSILE STRESS AT THE EDGE BOND ....................................................................................... 42 18 PROPOSAL MODULE ...................................................................................................................... 42 18.1 18.2 19 GLASS THICKNESSES ................................................................................................................... 42 SIZE OF MATRIX .......................................................................................................................... 43 PROJECT MANAGEMENT ............................................................................................................... 44 19.1 19.2 19.3 19.4 19.5 19.6 19.7 CHANGE BUILDING PROJECT ......................................................................................................... 44 CHANGE PROJECT ....................................................................................................................... 45 GENERATE NEW POSITION ............................................................................................................ 45 COPY CURRENT POSITION ............................................................................................................ 45 DELETE POSITION ........................................................................................................................ 45 RENAME PROJECT ....................................................................................................................... 46 NEW BUILDING PROJECT .............................................................................................................. 46 Sommer Informatik GmbH, Sepp-Heindl-Str.5. 13, 83026 Rosenheim, Tel. 08031–24 881 Page - 3 - Sommer Informatik GmbH 1 Manual GlasGlobal Import database GlasGlobal v2.5 (projects, users) To undertake projects and users from GlasGlobal (v2.5) to SommerGlobal (v6.1), proceed as follows, whereby the procedure only must be made once: 1. Menu “Project” -> “Import database GlasGlobal v2.5 (projects, users)” 2. Selection of the old database of GlasGlobal: 3. “OK” starts the import. After terminating the process, you receive a prompt about the number of the imported datasets. Already existing projects resp. users will be ignored. Sommer Informatik GmbH, Sepp-Heindl-Str.5. 13, 83026 Rosenheim, Tel. 08031–24 881 Page - 4 - Sommer Informatik GmbH Manual GlasGlobal 2 Toolbar Functions (from the left to the right) New Clears the canvas and creates a new position, that is added to the recent building project Search Opens the project search Save Saves the recent project including PDF as proof Print Prints the displayed report PDF export Exports the displayed report as PDF Calculate Accomplishes the calculation First step Goes back to the project details Step back Previous processing step Next step Next processing step Last step Goes to the result Help Activates this help Quit Quits the editor and saves the recent project Sommer Informatik GmbH, Sepp-Heindl-Str.5. 13, 83026 Rosenheim, Tel. 08031–24 881 Page - 5 - Sommer Informatik GmbH Manual GlasGlobal 3 Project data The project’s specifications are made here. Projects are summarized per building project. 4 Navigation - processes With a click in the navigation bar you get to the particular processes. Display of the subentries of the particular process Display all subentries Display only gists 5 Specifications Menu „settings“ “Specifications” opens a window for the definition of Specifications. The displayed specifications pertain the user. The change of the user saves the settings for the particular user. Resets the specifications to default. Sommer Informatik GmbH, Sepp-Heindl-Str.5. 13, 83026 Rosenheim, Tel. 08031–24 881 Page - 6 - Sommer Informatik GmbH 5.1 Manual GlasGlobal Characteristic strength Values varying from standard are marked red. Thereby the default will be quoted in parentheses. Values, which are not regulated in the norm, are marked with *. Sommer Informatik GmbH, Sepp-Heindl-Str.5. 13, 83026 Rosenheim, Tel. 08031–24 881 Page - 7 - Sommer Informatik GmbH 5.2 Manual GlasGlobal Limit of deflection Zero means that the deflection is not relevant for the proof. 5.3 Country setting for wind and snow load For the determination of the wind and snow loads the settings of the defined country are used. The same holds true for the postcode register for the determination of sea levels, wind and snow load zones. Sommer Informatik GmbH, Sepp-Heindl-Str.5. 13, 83026 Rosenheim, Tel. 08031–24 881 Page - 8 - Sommer Informatik GmbH Manual GlasGlobal 6 Project details The deposited data appears in the heading of the proof: Sommer Informatik GmbH, Sepp-Heindl-Str.5. 13, 83026 Rosenheim, Tel. 08031–24 881 Page - 9 - Sommer Informatik GmbH Manual GlasGlobal 7 Geometry 7.1 Pane Number of panes. The setting can also be modified under „product“: 7.2 Installation angle Horizontal glazing Vertical glazing Overhang 7.3 Angle 0° to 79° Angle 80° to 100° Securing glazing and distributed load are only available for vertical glazing. Angle 101° to 180° Shape (geometry) Shape of the glass Sommer Informatik GmbH, Sepp-Heindl-Str.5. 13, 83026 Rosenheim, Tel. 08031–24 881 Page - 10 - Sommer Informatik GmbH Manual GlasGlobal Please note For distributed load only rectangle is available For membrane stress only rectangle is available 7.4 Support Type of support Please note “Clamped below“ available only for single panes Securing glazing according to category B is always “clamped below” 7.5 Measures Depending on the form the different masses have to be quoted in mm. 7.6 Membrane stress The calculation with membrane stress is only available under the following requirements and approved according to DIN 18008-1: Addon „membrane stress“ was activated Shape rectangle Four-sided support No taking into account shear coupling with laminated safety glass The consideration of the membrane stress is quoted in the proof: : Sommer Informatik GmbH, Sepp-Heindl-Str.5. 13, 83026 Rosenheim, Tel. 08031–24 881 Page - 11 - Sommer Informatik GmbH Manual GlasGlobal 8 Securing glazing Here the specifications for the proof of securing glazing will be made according to DIN 18008-4. The chosen category appears on the first page of the proof: 8.1 Category A Restrictions: 1. Single glazing has to consist of laminated security glass. 2. For the impact side (attack side) of insulating glass units it is only admitted to use laminated security glass, toughened glass or laminated glass consisting of toughened glass. 3. Generally at least one pane of an insulating glass unit has to consist of laminated security glass. 4. Insulating glass units with toughened glass at the attack side may contain roughly breaking types of glass (e.g. float glass) immediately behind this pane, if there does not occur a breakage of glass of the attack sided toughened glass pane at the pendulum impact test. Sommer Informatik GmbH, Sepp-Heindl-Str.5. 13, 83026 Rosenheim, Tel. 08031–24 881 Page - 12 - Sommer Informatik GmbH 8.2 Manual GlasGlobal Category B 8.2.1 Restrictions 1. Only laminated security glass usable 2. Only single panes 3. Support is always “clamped below“ 8.2.2 Proof failure element According to DIN 18008-4, 6.1.2 for category B the failure of a random element of the glass balustrades has to be additionally proved. Please note: γm from specifications fk with taking into account factors IAW DIN 18008-1, 8.3.8 and 8.3.9 γG/Q = 1 Laminated security glass is calculated without bond Only loading case distributed load will be proved At the protected edges only the failure of a laminated security glass layer has to be proved. The proof of the remaining laminated security glass layer(s) will be accomplished with the quoted distributed load. Sommer Informatik GmbH, Sepp-Heindl-Str.5. 13, 83026 Rosenheim, Tel. 08031–24 881 Page - 13 - Sommer Informatik GmbH Manual GlasGlobal At the unprotected edges the failure of the whole element has to be proved. The neighboring pane, that must also carry the additional load resulting from the failure, has the same structure Proof for an efficient width beff = 0,5 m Proof with additional load qz = distributed load * widthfailure / beff Neighboring element has to carry whole failure load q(Proof) = qz * (1 + widthfailure / beff) Neighboring element has to carry only half the failure load q(Proof) = qz * (1 + widthfailure / (2 * beff)) 8.3 Category C1 Restrictions: 1. Only laminated security glass usable 2. Only single panes Sommer Informatik GmbH, Sepp-Heindl-Str.5. 13, 83026 Rosenheim, Tel. 08031–24 881 Page - 14 - Sommer Informatik GmbH 8.4 Manual GlasGlobal Category C2 Restrictions: 1. All single glazing has to be accomplished with laminated security glass. Differing herefrom four-sided linear stored single glazing of the category C2 may be accomplished with toughened glass, too. 2. For insulating glass units of the category C2 for the impact side only laminated security glass, toughened glass or laminated glass consisting of toughened glass has to be used. 8.5 Category C3 Restrictions: 1. All single glazing has to be accomplished with laminated security glass. 2. For glazing of the category C3 concerning the usable glass products the requirements of category A pertain. Sommer Informatik GmbH, Sepp-Heindl-Str.5. 13, 83026 Rosenheim, Tel. 08031–24 881 Page - 15 - Sommer Informatik GmbH 8.6 Manual GlasGlobal Proof of shock resistance For the proof of the shock resistance the following procedure pertains: 1. Proof according to DIN 18008-4, attachment B 2. Proof according to DIN 18008-4, attachment C.2, if attachment B is not fulfilled 3. If neither attachment B nor C.2 are fulfilled, an appropriate hint will be made under the result: 8.6.1 Tabular method (DIN 18008-4, attachment B) Requirements: Geometry is inside of the admissible deviation of rectangular shape according to attachment B Min GD = 12mm Max GD = 20 mm No enameling The structure suits the values in DIN 18008-4, table B.1 Please note: Please remember that the direction from attack to crash side is defined by the setting according to „distributed load“: Output at the editor: Output at the proof: Sommer Informatik GmbH, Sepp-Heindl-Str.5. 13, 83026 Rosenheim, Tel. 08031–24 881 Page - 16 - Sommer Informatik GmbH Manual GlasGlobal 8.6.2 Simplified verification procedure (DIN 18008-4, attachment C.2) Requirements: Geometry is inside of the admissible deviation from rectangular shape to attachment B Min GD = 12mm Only two-, three- and four-sided support -> not possible for category B Glass thicknesses: min. 1 x 6 mm, max. 2 x 19 mm Four-sided: maximal b = 2,0 m; h = 4,0 m Two-/three-sided: only cat. C, min. b = 0,7m; max. b = h = 2,0 m Please note: γG/Q = 1 Rd = kmod * fk / γm fk without taking into account factors IAW DIN 18008-1, 8.3.8 and 8.3.9 kmod from table C.1 (DIN 18008-4) γm = 1 Laminated security glass will be calculated with total bond Proof of load capacity with point load P = 8,5 kN on an area of 20 x 20 cm in slab middle Output at the editor: Output at the proof (result, 1. side): Output at the proof (after the loading cases, last side): Sommer Informatik GmbH, Sepp-Heindl-Str.5. 13, 83026 Rosenheim, Tel. 08031–24 881 Page - 17 - Sommer Informatik GmbH Manual GlasGlobal 9 Define structure - product Single glazing, double and triple insulating glazing Edit of the marked layer (glass or GD) Alternatively double-click on the line in list or the layer in the drawing Search predefined products. On choosing a product the whole structure will be replaced. See chapter „Error! Reference source not found. Search product“ Saves recent structure as product See chapter “9.4 Save structure as product (only admin)“ By right-clicking on a layer of the drawing you get this context menu. The menu entries correspond to the points described above. Additionally there is the possibility to modify the thickness of the marked glass resp. GDs by choosing the feature „change thickness“, whereby the new thickness can be typed in directly: Sommer Informatik GmbH, Sepp-Heindl-Str.5. 13, 83026 Rosenheim, Tel. 08031–24 881 Page - 18 - Sommer Informatik GmbH 9.1 Manual GlasGlobal Define pane 9.1.1 Type of glass Set the type of glass here. For laminated security glass only float, TSG (float) and TVG are available. 9.1.2 Single glazing Specification of the thickness in mm Sommer Informatik GmbH, Sepp-Heindl-Str.5. 13, 83026 Rosenheim, Tel. 08031–24 881 Page - 19 - Sommer Informatik GmbH Manual GlasGlobal 9.1.3 LSG General Specification of the thickness for the single glazing panes in mm Thickness and type of interlayer Number of glass panes and the consequent LSG structure Substitute thicknesses for the calculation of the deflection (dw*) and the stress (ds*) Schubverbund at LSG When the hook is set, the specification of the Schubmodul of the interlayer in N/mm² can be made. Requirements: Only rectangle No membrane stress Number LSG panes =2 Please note Additional to “total bond” and “without bond” the LSG will be calculated “with Schubmodul”. The calculation “with Schubmodul” has no influence on the results of verification (OK, stress/deflection too big). In individual cases the user has to decide, if a fulfilled proof “with Schubmodul” replaces a not fulfilled proof „without bond“. Sommer Informatik GmbH, Sepp-Heindl-Str.5. 13, 83026 Rosenheim, Tel. 08031–24 881 Page - 20 - Sommer Informatik GmbH Manual GlasGlobal Output at the proof: 9.1.4 Basis glass The basis glass functions among other things as definition of the producer. At it the spectral data of the quoted basis glass will be used. Refreshes search result in accordance with justified filter Resets filter and refreshes search result Deletes marked basis glass (only user-defined, only admin) Edit basis glass (only user-defined, only admin) Define new basis glass. The input will be made with the following interface: Sommer Informatik GmbH, Sepp-Heindl-Str.5. 13, 83026 Rosenheim, Tel. 08031–24 881 Page - 21 - Sommer Informatik GmbH Manual GlasGlobal Spectral data SLT Link to existing basis glass, whose spectral data is supposed to be used for a later calculation in the SLT module. Type of glass preallocation The type of glass will be preallocated with the value defined here on choice of this basis glass. Sommer Informatik GmbH, Sepp-Heindl-Str.5. 13, 83026 Rosenheim, Tel. 08031–24 881 Page - 22 - Sommer Informatik GmbH 9.2 Manual GlasGlobal Define GD Thickness GD in mm Choice of the gas from predefined mixtures of gases Specification of the maximally admissible tensile stress at the edge bond. By using the button you directly get to the interface called “Specifications” to change this value. Height of the secondary seal in mm This specification has no influence on the proof and acts only as an information. Sommer Informatik GmbH, Sepp-Heindl-Str.5. 13, 83026 Rosenheim, Tel. 08031–24 881 Page - 23 - Sommer Informatik GmbH Manual GlasGlobal For the calculation in the module WinUw the spacer settled here will be used. 9.3 Search product Refreshes search result in accordance with appointed filter Resets filter and refreshes search result Deletes marked product (only user-defined, only admin) Edit of the product data (only user-defined, only admin) Replaces recent structure with marked product. 9.4 Save structure as product (only admin) Using this feature the recent structure can be saved as a product. Sommer Informatik GmbH, Sepp-Heindl-Str.5. 13, 83026 Rosenheim, Tel. 08031–24 881 Page - 24 - Sommer Informatik GmbH Manual GlasGlobal SLT Product is available under SLT GlasGlobal Product is available under GlasGlobal IDENT Clear specific value for the product. Is specified by the program. 10 Wind and snow load 10.1 General 10.1.1 Wind loads according to EN 1991-1-4 Please note: Restriction to building up to a maximal height of 300 m and vibratory buildings (up to a height of 25 m (generally not prone to vibrations) Transgression probability: 2 % Return period: 50 years Dependences: Geographic situation (wind zone), terrain conditions (terrain category) and wind velocity Layout of the building Height of the building Location of the subarea in the building Sommer Informatik GmbH, Sepp-Heindl-Str.5. 13, 83026 Rosenheim, Tel. 08031–24 881 Page - 25 - Sommer Informatik GmbH Manual GlasGlobal Wind direction Opening in the building Wind load 𝑤 = 𝑐𝑝 ∙ 𝑞(𝑧) in kN/m² With: 𝑤 = wind load in kN/m² 𝑐𝑝 = aerodynamic coefficient (Depending on: area of the unit, location of the unit in the building, relation between height and depth of the building downwind, roof pitch, wind direction) 𝑞= Dynamic pressure (Depending on: wind zone, terrain category, datum level) 𝑧= Datum level (Depending on: Relation between height and width of the building across the wind direction, installation height of the unit) 10.1.2 Snow loads according to EN 1991-1-3 Please note: Counts for edificial constructions, generally up to 1500 m above sea level Transgression probability: 2 % Return period: 50 years Dependences: Place with the local clime and the topographic height Construction geometry Snow load: 𝑠𝑖 = 𝜇𝑖 ∙ 𝑠𝑘 With: 𝑠𝑖 = Snow load in kN/m² 𝜇𝑖 = Shape parameter of the snow load (Describes the relation between the amount of snow on top of the roof and the fallen amount of snow) 𝑠𝑘 = characteristic value of the snow load on the ground in kN/m² Sommer Informatik GmbH, Sepp-Heindl-Str.5. 13, 83026 Rosenheim, Tel. 08031–24 881 Page - 26 - Sommer Informatik GmbH Manual GlasGlobal 10.2 Module call The invocation is made in the tree with “wind- / snow-load”: Please note: The in the following described features are only available, if the Addon “wind- / snowload” has been activated. Otherwise the functionality is limited to a manual input of the resulting wind and snow loads. 10.3 Installation place 10.3.1 Load influence area The load influence area A will be preallocated corresponding to the glass dimensions typed in under “Geometry”. DIN EN 1991-1-4, 7.2.1 The external pressure coefficients cpe for buildings and sections of buildings depend on the size of the load influence area A. They will be quoted in the decisive tables for load Sommer Informatik GmbH, Sepp-Heindl-Str.5. 13, 83026 Rosenheim, Tel. 08031–24 881 Page - 27 - Sommer Informatik GmbH Manual GlasGlobal influence areas from 1 m² and from 10 m² as cpe,1 resp. cpe,10 that correspond to the building form. For 1 m² < A < 10 m² is valid: cpe = cpe,1 - (cpe,1 -cpe,10) log10 A 10.3.2 Location information Sets street, post code and city from the project details and subsequently retrieves the related data in the location information. Opens the post code register. At it, wind zone, snow load zone, local altitude above sea level and indicators for North German Plain will be detected. Sommer Informatik GmbH, Sepp-Heindl-Str.5. 13, 83026 Rosenheim, Tel. 08031–24 881 Page - 28 - Sommer Informatik GmbH Manual GlasGlobal Retrieves the quoted address with Google Maps Displays the quoted address with Google Earth. Requirement is the installation of Google Earth. In Google Earth the local altitude above sea level can be read: Sommer Informatik GmbH, Sepp-Heindl-Str.5. 13, 83026 Rosenheim, Tel. 08031–24 881 Page - 29 - Sommer Informatik GmbH Manual GlasGlobal 10.3.3 Terrain categories Terrain category I High seas; Seas with at least 5 km free area downwind; smooth flat land without obstacles 𝑧0 = 0,01 𝑚 Terrain category II Terrain with hedges, single homesteads, houses or trees, like e.g. agricultural territory 𝑧0 = 0,05 𝑚 Terrain category III Suburbs, industrial or commercial area; woods 𝑧0 = 0,30 𝑚 Terrain category IV Urban areas, where at least 15 % of the surface is built on with buildings, whose average height transgresses 15 m 𝑧0 = 1,00 𝑚 Sommer Informatik GmbH, Sepp-Heindl-Str.5. 13, 83026 Rosenheim, Tel. 08031–24 881 Page - 30 - Sommer Informatik GmbH Manual GlasGlobal 10.3.4 Snow load zones Opens map to the manual choice of the snow load zone: Sommer Informatik GmbH, Sepp-Heindl-Str.5. 13, 83026 Rosenheim, Tel. 08031–24 881 Page - 31 - Sommer Informatik GmbH Manual GlasGlobal 10.4 Buildings Building dimensions Determination the building dimensions Internal pressure The internal pressure will only be considered, if it is a hall-like building. Please quote the amount of apertures on the walls 1 to 4 each time under “Wall open”. With “Opening height Zi” you quote the reference height for the calculation of the internal pressure. When you choose “Hall-like building”, there appears an additional result window for the internal pressure on the tab “Analysis”. 10.5 Unit/roof Unit Here you choose the unit, in which the window will be built into. Sommer Informatik GmbH, Sepp-Heindl-Str.5. 13, 83026 Rosenheim, Tel. 08031–24 881 Page - 32 - Sommer Informatik GmbH Manual GlasGlobal The roof pitch will be equaled the installation angle from “Geometry”. Position of installation Position of the glazing inside the unit Jump in height Specifications to the determination of the snow load at jumps in height at roofs according to DIN EN 1991-1-4, 5.3.6. b1 Width tall part of the building b2 Width low part of the building b3 Width of the load from that the snow can slip down to the low part of the building hH Height of the height difference αH Roof pitch of the taller part of the building ls Length of the drifting ls = 2 * hH whereby 5 ≤ ls ≤ 15 m µ1 = 0,8 µs Shape parameter for slipping snow µw Shape parameter for snow taking account of wind µ2 = µs + µw Calculating µs αH ≤ 15°: µs = 0 αH > 15°: µs has to be calculated by means of an additional load of 50% of the largest entire snow load on the bordering roof pitch of the upper roof area. This entire snow load will be steadily set with µ1 = 0,8, also for roof pitches >30°, so that there will not be calculated a load, where several parts of the snow load are already slipped down. It is accordingly clear: 0,5 * b3 * 0,8 * sK = 0,5 * µs * sK * ls And herefrom: µs = 0,8 * b3 / ls Calculating µw HH ≤ 0,5 m µw = 0 HH > 0,5 m µw = (b1 + b2) / 2hH ≤ 2hH / sK - µs Margin µ2 Generally: For b2 ≤ 3 m: For sK > 3,0 kN/m²: North Ger. Plain 0,8 ≤ µ2 ≤ 2,4 0,8 ≤ µ2 ≤ 2 1,2 ≤ µ2 ≤ 6,45 / sK0,9 2,3 * µ2 ≤ 4 which indicates µ2 ≤ 1,74 Sommer Informatik GmbH, Sepp-Heindl-Str.5. 13, 83026 Rosenheim, Tel. 08031–24 881 Page - 33 - Sommer Informatik GmbH Manual GlasGlobal 10.6 Analysis The parameters for the wind and snow loads will be summarized here. Snow si = µ * sk si * cos² quotes the value for the snow load on the roof snow load on the roof multiplied with the cos² for considering the effective snow load of the roof Wind Resulting loads for the loading cases pressure and suction 10.6.1 Manual input When the hooks at “Manual input” are set according to the foregoing values, the snow and wind loads can be typed in manually. Sommer Informatik GmbH, Sepp-Heindl-Str.5. 13, 83026 Rosenheim, Tel. 08031–24 881 Page - 34 - Sommer Informatik GmbH Manual GlasGlobal 10.6.2 Superposition wind outside and inside The superposition of outside and inside will be made according to following schema: 1. Loading case pressure a. Determination maximal pressure outside b. Determination related suction inside 2. Loading case suction a. Determination maximal suction outside b. Determination related pressure inside Output at “Experts term”, example double: Sommer Informatik GmbH, Sepp-Heindl-Str.5. 13, 83026 Rosenheim, Tel. 08031–24 881 Page - 35 - Sommer Informatik GmbH Manual GlasGlobal 11 Climate stress Without particular specifications there have to be used the default values. Sommer Informatik GmbH, Sepp-Heindl-Str.5. 13, 83026 Rosenheim, Tel. 08031–24 881 Page - 36 - Sommer Informatik GmbH Manual GlasGlobal 12 Altitude Without No loads Default attributes Without knowing the production amount and installation height, the default attributes have to be used Producing amount known Determination of the production amount with location info Height of installation known Determination of the installation height with location info Both heights known Determination of the production amount and installation height with location info Sommer Informatik GmbH, Sepp-Heindl-Str.5. 13, 83026 Rosenheim, Tel. 08031–24 881 Page - 37 - Sommer Informatik GmbH Manual GlasGlobal 13 Uniform load Restrictions Only for vertical glazing Only for rectangles Entries Attack height in m Load in kN/m Side of the load application (inner or outer pane) Sommer Informatik GmbH, Sepp-Heindl-Str.5. 13, 83026 Rosenheim, Tel. 08031–24 881 Page - 38 - Sommer Informatik GmbH Manual GlasGlobal 14 Load case combinations Display of the load cases for the procedure of furnishing proof: Adds a user-defined load case. The input will be made on the following interface: Deletes the selected load case (only user-defined) Edit marked load case (only user-defined) Sommer Informatik GmbH, Sepp-Heindl-Str.5. 13, 83026 Rosenheim, Tel. 08031–24 881 Page - 39 - Sommer Informatik GmbH Manual GlasGlobal Resets load cases to default (or double-click on line) Load case Print yes/no Sets all load cases on Print = Yes Sets all load cases on Print = No 15 Result Above the workspace the overall result is displayed: The tab “Result” displays the preview of the detailed report. The output will be made with following buttons in the toolbar: Output on printer Export as PDF file Proof (without sketches) Static proof including the list of the particular load cases without sketches Proof (deflection sketches) Static proof including the list of the particular load cases, each time with deflection sketch Sommer Informatik GmbH, Sepp-Heindl-Str.5. 13, 83026 Rosenheim, Tel. 08031–24 881 Page - 40 - Sommer Informatik GmbH Manual GlasGlobal Result detail Overview about the particular load cases All green lines are in the admissible area, all red lines exceed the maximally admissible values. Result printing - loading capacity Detailed assembly of the particular load cases for stress analysis Result printing - usability Detailed assembly of the particular load cases for deflection analysis 16 String shortening Please note: Will be calculated automatically Specification of the load case whereby the maximal deflection and therefore the maximal string shortening occurs. max. string shortening = 8 * fmax² / (3 * supporting width) Output at the proof (result, 1. site): Sommer Informatik GmbH, Sepp-Heindl-Str.5. 13, 83026 Rosenheim, Tel. 08031–24 881 Page - 41 - Sommer Informatik GmbH Manual GlasGlobal 17 Tensile stress at the edge bond The definition of the edge seal happens using the interface “Disk space”. See chapter “Error! Reference source not found. Define GD” Maximum tensile stress The maximally admissible value for the tensile stress at the edge bond will be set under the specifications (Menu “Settings” -> “Specifications”): Output at the proof (after the loading cases, last site): 18 Proposal module 18.1 Glass thicknesses Here the possible glazing thicknesses outside and inside will be detected, for whom the static proof with the recently lodged loads is fulfilled. For LSG is the thickness of the individual disk specified. Sommer Informatik GmbH, Sepp-Heindl-Str.5. 13, 83026 Rosenheim, Tel. 08031–24 881 Page - 42 - Sommer Informatik GmbH Manual GlasGlobal Thicker pane preferably outside resp. on top Both panes same thickness Thicker pane preferably inside resp. below Glass thicknesses, for whom the proof is not fulfilled, will not be diplayed Take over glass thicknesses and accomplish proof 18.2 Size of Matrix Here the results (utilization in %) for the recently lodged loads depending on width and height will be displayed. Values <= 100% green Values > 100% red resp. orange Matrix for stress (load capacity) Sommer Informatik GmbH, Sepp-Heindl-Str.5. 13, 83026 Rosenheim, Tel. 08031–24 881 Page - 43 - Sommer Informatik GmbH Manual GlasGlobal Matrix for deflection (usability) Colour gradient from green via orange to red Colours only green and red Take over dimensions and accomplish proof Exports displayed matrix to Excel 19 Project management The projects will be summarized as positions for a building project. Building Project, position and denomination correspond to the project data: 19.1 Change building project 1. Button in the toolbar 2. Choice of the building project using the following interface Sommer Informatik GmbH, Sepp-Heindl-Str.5. 13, 83026 Rosenheim, Tel. 08031–24 881 Page - 44 - Sommer Informatik GmbH Manual GlasGlobal Refreshes search result according to justified filter Resets filter and refreshes search result Deletes marked building project incl. all projects resp. the marked project (only admin) 3. Confirm with OK 19.2 Change project The change in-between the projects happens by clicking on the requested project on the list. 19.3 Generate new position Generates a new empty position 19.4 Copy current position Generates a new position as a copy of the current position 19.5 Delete position Deletes current position Sommer Informatik GmbH, Sepp-Heindl-Str.5. 13, 83026 Rosenheim, Tel. 08031–24 881 Page - 45 - Sommer Informatik GmbH Manual GlasGlobal 19.6 Rename project Changes the denomination for the current building project for all related projects: 19.7 New building project Generates a new building project with quoted denomination: Sommer Informatik GmbH, Sepp-Heindl-Str.5. 13, 83026 Rosenheim, Tel. 08031–24 881 Page - 46 -
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