Structechnique is a provider of low-cost Excel spreadsheet solutions for civil and structural engineering elements and design related issues. Structural elements include retaining walls, pre-stressed beams and box culverts designed in accordance with relevant Eurocodes. Design issues addressed include buckling, elastic impact, dynamics and tuned mass dampers and differential temperature effects.

Grillage models* based on stiffness matrix analysis are available for 4-, 6- and 8-beam normal or skewed bridge single-span decks, deck slab, abutment and wing walls. Integral or ‘ladder’ type decks can also be analysed using rotational springs or by omitting supports. Results have been verified by a commercially available structural analysis software program.

Structural elements include retaining walls, pre-stressed beams, steel and concrete composite bridges and box culverts designed in accordance with relevant Eurocodes. Design issues addressed include buckling, elastic impact, dynamics and tuned mass dampers and differential temperature effects.

Spreadsheets include theoretical formulations and explanations of methodologies and allow access to all cell data and formulae (except stiffness matrices). A brief summary and a list of contents is given for each spreadsheet and a pdf copy of calculation extracts is also available.

* Requires Excel 2016

Box culverts

'Box culverts' includes analyses of all relevant load cases by moment distribution and compilations of load combination bending moments and…

Bridge abutment free-standing

‘Bridge abutment free-standing’ provides design calculations for free-standing bridge abutments in accordance with Eurocode 7 and PD 6694-1, including bearing…

Buckling

'Buckling' calculates critical buckling loads for pinned, fixed and spring supported struts. It also includes calculations for stepped, tapered and…

Cantilever retaining walls

'Retaining walls' provides design calculations for gravity retaining walls with variable sloping backfill in accordance with Eurocode 7, including bearing…

Differential temperature effects for precast beam & slab bridges

This spreadsheet calculates non-linear residual differential temperature effects for pre-stressed beam and slab bridge decks, including graphical representations of results. Contents…

Differential temperature effects for solid slab and beam infill

This spreadsheet calculates non-linear residual differential temperature effects for solid slab and precast beam infill bridge decks, including graphical representations…

Differential temperature effects for steel beams and slab bridge

This spreadsheet calculates non-linear residual differential temperature effects for pre-stressed beam and slab bridge decks, including graphical representations of results. Contents…

Elastic impact

'Elastic impact' provides calculations of the effects of dropped weights and slow moving vehicles on a range of simply supported…

Grillage for 4 beam 2 span bridge

A grillage analysis for 4 main beams supported on pinned or rotational springs over 2 spans using a stiffness matrix…

Grillage for 4 beam 2 span skew bridge

This spreadsheet provides a grillage analysis for 4 main skewed beams supported on pinned or rotational springs over 2 spans…

Grillage for 4 beam 3 span bridge

A grillage analysis for 4 main beams supported on pinned or rotational springs over 3 spans using a stiffness matrix…

Grillage for 4 beam bridge

A grillage analysis for a single span bridge comprising 4 main beams supported on pinned or rotational springs using a…

Grillage for 4 beam skew bridge

This spreadsheet provides a grillage analysis for a single span bridge comprising 4 main skewed beams supported on pinned or…

Grillage for 6 beam 2 span bridge

A grillage analysis for 6 main beams supported on pinned or rotational springs over 2 spans using a stiffness matrix…

Grillage for 6 beam 2 span skew bridge

A grillage analysis for 6 main skewed beams supported on pinned or rotational springs over 2 spans using a stiffness…

Grillage for 6 beam 3 span bridge

A grillage analysis for 6 main beams supported on pinned or rotational springs over 3 spans using a stiffness matrix…

Grillage for 6 beam bridge

A grillage analysis for a single span bridge comprising 6 main beams supported on pinned or rotational springs using a…

Grillage for 6 beam skew bridge

A grillage analysis for 6 main skewed beams supported on pinned or rotational springs using a stiffness matrix (short and…

Grillage for 8 beam 2 span bridge

A grillage analysis for 8 main beams supported on pinned or rotational springs over 2 spans using a stiffness matrix…

Grillage for 8 beam 2 span skew bridge

A grillage analysis for 8 main skewed beams supported on pinned or rotational springs over 2 spans using a stiffness…

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