Formwork shuttering design tables for designing of Formwork System

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Formwork shuttering design tables for designing of Formwork System
Based on the principles outlined so far, safe spans for many timber and plywood formwork components have been calculated and arranged in tables
for use by formwork designer.
The tables cover single span beams, two-span beams, and beams continuous over three or more spans carrying a uniform distributed load.
The tables can be used to develop a preliminary design for cases where rigorous structural analysis is required for formwork design.

Four sets of allowable (adjusted) stresses are included in the tables.
Adjusted stresses for long term and short term loading stresses for formwork made of No. 2 grade Southern Pine and Douglas Fir-Larch.
Adjusted stresses for both short term and long term loading of No. 2 Spruce-Pine-Fir and No. 2 Hem-Fir.
Table 7-1 shows the expressions which are used to calculate the safe support spacing's (spans).
Forwork design table 7-1.png

Table 7-2 through 7-4 for plywood sheathing
Nominal lumber sizes are shown in the tables.
All calculations are based on lumber finished on all four surfaces (S4S).
Actual thicknesses are shown for plywood.
In each table, it is shown whether the safe span is controlled by bending, deflection of shear.
Tables 7-2, 7-3, and 7-4 were calculated for both long term and short term loading using the information from Table 4-2, for face grain parallel and perpendicular to direction of the span.
Tables 7-2 through 7-4 are applicable to plywood sheathing for columns, slabs, and walls.
They cover plywood supports as a single span beam, two span beam, or a beam continuous over three or more spans.
Theoretical deflection of spans in these tables do not exceed 1/16 in.

Tables 7-5 through 7-7 for joists, studs, stringers or any other beam components of the formwork where framing members are used singly
Tables 7-5, 7-6, and 7-7 are applicable to joists, studs, or any other form members loaded uniformly as a beam.
Tables 7-5.1 through 7-5.4 are beams continuous over three or more spans with the following adjusted (allowable) stresses
Tables 7-6 and 7-7 are like Table 7-5, except that span length are calculated for simply supported and two-span rather than continuous beams.

Tables 7-8 through 7-10 for wales or other formwork components where the members are used double
Tables 7-8, 7-9 and 7-10 are similar to Tables 7-5, 7-6, and 7-7 in terms of allowable (adjusted) stresses and general layout, but they cover double members which are commonly used for wales and frequently for stringers.
Spans are calculated on the basis of these members side by side with their longer dimension as the depth of the beam.

Table 7-11 and 7-12 for shore loading and bearing checks
Table 7-11 shows allowable loads on wood shores for some of the more commonly used timber sizes, with base value of compression parallel to the grain Fc ranging from 1100 to 1600 psi, with modulus of elasticity values from 1,200,000 psi to 1,600,000 psi.
Table 7-11 shows no load when l /d exceeds the recommended limit of 50.

All Formwork Design Calculations are shown in attached document for;
Flat slab Formwork Design
Wall Formwork Design

You can download the document of Design tables for shuttering formwork system design from below attachment and with the help of given examples of design, you can design your own formwork system.
 

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Formwork shuttering design tables for designing of Formwork System
Based on the principles outlined so far, safe spans for many timber and plywood formwork components have been calculated and arranged in tables
for use by formwork designer.
The tables cover single span beams, two-span beams, and beams continuous over three or more spans carrying a uniform distributed load.
The tables can be used to develop a preliminary design for cases where rigorous structural analysis is required for formwork design.

Four sets of allowable (adjusted) stresses are included in the tables.
Adjusted stresses for long term and short term loading stresses for formwork made of No. 2 grade Southern Pine and Douglas Fir-Larch.
Adjusted stresses for both short term and long term loading of No. 2 Spruce-Pine-Fir and No. 2 Hem-Fir.
Table 7-1 shows the expressions which are used to calculate the safe support spacing's (spans).
View attachment 2783

Table 7-2 through 7-4 for plywood sheathing
Nominal lumber sizes are shown in the tables.
All calculations are based on lumber finished on all four surfaces (S4S).
Actual thicknesses are shown for plywood.
In each table, it is shown whether the safe span is controlled by bending, deflection of shear.
Tables 7-2, 7-3, and 7-4 were calculated for both long term and short term loading using the information from Table 4-2, for face grain parallel and perpendicular to direction of the span.
Tables 7-2 through 7-4 are applicable to plywood sheathing for columns, slabs, and walls.
They cover plywood supports as a single span beam, two span beam, or a beam continuous over three or more spans.
Theoretical deflection of spans in these tables do not exceed 1/16 in.

Tables 7-5 through 7-7 for joists, studs, stringers or any other beam components of the formwork where framing members are used singly
Tables 7-5, 7-6, and 7-7 are applicable to joists, studs, or any other form members loaded uniformly as a beam.
Tables 7-5.1 through 7-5.4 are beams continuous over three or more spans with the following adjusted (allowable) stresses
Tables 7-6 and 7-7 are like Table 7-5, except that span length are calculated for simply supported and two-span rather than continuous beams.

Tables 7-8 through 7-10 for wales or other formwork components where the members are used double
Tables 7-8, 7-9 and 7-10 are similar to Tables 7-5, 7-6, and 7-7 in terms of allowable (adjusted) stresses and general layout, but they cover double members which are commonly used for wales and frequently for stringers.
Spans are calculated on the basis of these members side by side with their longer dimension as the depth of the beam.

Table 7-11 and 7-12 for shore loading and bearing checks
Table 7-11 shows allowable loads on wood shores for some of the more commonly used timber sizes, with base value of compression parallel to the grain Fc ranging from 1100 to 1600 psi, with modulus of elasticity values from 1,200,000 psi to 1,600,000 psi.
Table 7-11 shows no load when l /d exceeds the recommended limit of 50.

All Formwork Design Calculations are shown in attached document for;
Flat slab Formwork Design
Wall Formwork Design

You can download the document of Design tables for shuttering formwork system design from below attachment and with the help of given examples of design, you can design your own formwork system.
Thank you very much dear friend
 
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