# Trusses+

> Pre-design and verification tool for large span steel trusses per European standards. (iPhone/iPad app by Conception Consulting Engineering Solutions P.C..)

- Source: https://appshunter.io/ios/app/trusses-plus/id1160188287 (this page in markdown: same URL + `.md`)
- Developer: [Conception Consulting Engineering Solutions P.C.](https://appshunter.io/developer/1606748104)
- Category: Productivity, Utilities
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 11.0 · 11 MB
- Languages: English
- Released: 2016-10-03
- Data updated: 2026-07-07
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/trusses-plus/id1160188287/reviews.md

## What is Trusses+?

Trusses+ is dedicated to the pre-design of Large Span Trusses in conformity with the European rules for steel structures (EN1993-1-1:2005)
The software can be used as an automatic pre-design tool.

Verification: based on sections imposed by the user, Trusses+  checks the design criteria of each member of a truss (upper and lower chords, bracings)

Optimization: from basic data supplied by the user (main geometry, lateral restraints and loadings), the software estimates the dimensions of the cross-section of elements of the structure

The field of application of Trusses+ is:
2 dimensional truss model, simply supported, with user defined positions of lateral restraints
Truss configurations: N-, V-, A-truss, Warren, Pratt, Warren plus, Pratt lattice & Warren lattice

Geometrical limits:
Length = min: 5m, max: 100m
Height = min: 0.2m, max: 10m
Height/Length ratio = min 1/30, max: 1/10

Program sales of ArcelorMittal for I, H, double L, and U-sections

Steel grades and standards : EN 10025-2 & 4, EN 1993-1-1, HISTAR S355&S460

Multiple loading cases with definitions of:
Distributed loads: Permanent, Imposed, Wind and Snow loads
Concentrated loads: Permanent and Imposed loads
 
The calculations performed according to Eurocodes are:
Automatic load combination of the elementary load cases for Ultimate Limit States (ULS) and Servicability Limit States (SLS)
Classification of sections
Verification of cross-section resistance
Verfication of the member stability: flexural buckling in-plane and out-of plane
Verification of deflection limits and estimation of natural frequencies (SLS)

The results are provided as:
vizualisation on the software interface
3 levels of details of Preliminary Design Notes, with:
Data of the truss and calculation parameters
Analysis results (reaction at supports, node displacements, internal forces)
Verification results (ULS and SLS)

## Key features

- Automatic pre-design of large span trusses
- Verification of structural member design criteria
- Optimization of cross-section dimensions
- Support for various truss configurations (N, V, A, Warren, Pratt)
- Detailed analysis and verification results
- Visualization of truss models


## Frequently asked questions about Trusses+

### What European rules does Trusses+ conform to?

Trusses+ conforms to the European rules for steel structures, specifically EN1993-1-1:2005. It performs calculations according to Eurocodes, including automatic load combinations for Ultimate Limit States (ULS) and Serviceability Limit States (SLS).

### What types of loads can Trusses+ handle?

The software supports multiple loading cases, including distributed loads (Permanent, Imposed, Wind, Snow) and concentrated loads (Permanent, Imposed). It also handles automatic load combinations for ULS and SLS.

### What are the geometrical limits for trusses designed with Trusses+?

Trusses+ supports trusses with lengths ranging from 5m to 100m and heights from 0.2m to 10m. The height-to-length ratio must be between 1/30 and 1/10.

### What truss configurations are supported by Trusses+?

The app supports various 2-dimensional truss configurations, including N-, V-, and A-trusses, as well as Warren, Pratt, Warren plus, Pratt lattice, and Warren lattice configurations.

### What kind of results does Trusses+ provide?

Results are provided through visualization on the software interface and three levels of detail in Preliminary Design Notes. These include truss data, calculation parameters, analysis results (reactions, displacements, internal forces), and verification results (ULS and SLS).

### What steel grades and sections are supported by Trusses+?

Trusses+ supports steel grades EN 10025-2 & 4, EN 1993-1-1, and HISTAR S355&S460. It is compatible with ArcelorMittal's program sales for I, H, double L, and U-sections.

### How often is Trusses+ updated?

The latest version of Trusses+ is 2.1, which was last updated on March 21, 2022. This indicates a release cycle of approximately every 1-2 years.

### What devices is Trusses+ available on?

Trusses+ is currently supported on iPads. It is not available for other devices like iPhones or Android tablets.

## Version history (last 1 release)

### 2.1 — 2022-03-21

Calculation errors corrected

New database version 2022

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