Документация SkyCiv

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Проектирование стальных соединений с использованием AS 4100:2020

Стальные соединения, перечисленные в этой статье, разработаны в соответствии с австралийским стандартом. КАК 4100:2020, Справочник по подключению Австралийского института стали 1, и Руководства по проектированию Австралийского института стали 1-5.

Scope of the AS 4100 модуль

Before going through the connection types, it is worth being clear about what the module covers under AS 4100.

КАК 4100:2020 design in SkyCiv is for shear connections between I-sections, in metric units. Моментные соединения, splices and bracing connections are outside the current AS 4100 scope.

Универсальная балка к универсальной колонне

Beam to column connections are among the most common connection types in steel design. The AS connections in SkyCiv are built around a supported beam framing into a supporting member, and the orientation can be set to a column flange support, a column web support, or a beam web support.

That third orientation means the same four connection types can also be used beam to beam, not only beam to column.

Only one connection to a node can be designed at a time. При работе с обратными соединениями, рекомендуется принимать консервативные предположения о пути нагрузки.

Соединения на сдвиг

Срезное соединение – это простое соединение.. It is detailed to carry the beam end reaction and to rotate at the joint rather than to carry end moment, which is what separates it from a moment connection. In the AS module it is designed for shear alone, with no concurrent axial load.

Для дизайна АС, the following shear connection types are available:

Each of the four is available beam to column flange, beam to column web, and beam to beam web.

The design of the above shear connections was based mainly on ASI Design Guides 3, 4 и 5. The reference formulas were taken from the AS 4100:2020 руководство, while the rest of the calculations and criteria were taken from the ASI Connection Handbook 1.

Коэффициент группы болтов

Для гибкости в расположении болтов и расстоянии между болтами, SkyCiv адаптировала метод ICOR и неупругий анализ для определения коэффициента группы болтов C., which is then used to calculate the bolt group shear capacity and bolt bearing capacity.

The Instantaneous Centre of Rotation Method (ИКОР) использует итерацию, чтобы найти IC группы болтов. SkyCiv использует собственный решатель для этих итераций.. Расположение ИК включено в расчеты, but the iterations are not shown, to keep the report concise and readable.

The equation used to calculate the force per bolt using the inelastic analysis is based on AISC Eq. (7-1) на странице 7-7 Руководства AISC 15-го издания. Уравнение показано ниже.

[math] R = R_{ult}\left(1-e^{-10\Delta}\right)^{0.55} [math]

This is a method borrowed for the bolt group solver, not a change of design code. The capacities themselves are still checked to AS 4100:2020.

Поскольку емкость затворной группы адаптирована к методу AISC, the provisions for determining the design bolt eccentricity of the bolt group also follow Table 10-9 15-го изд. AISC. This applies to SkyCiv’s AS Web Side Plate connection.

Eccentricity is handled differently for each type. Для одноугловых соединений, both the NSL and OSL legs are designed with load eccentricity. Для двойных угловых соединений, only the NSL leg is designed with eccentricity, since the OSL leg is symmetrically balanced about the line of force. For Flexible End Plate connections there is no eccentricity either, as the load acts directly on the centre of the bolt group. Every bolt group without eccentricity takes the bolt coefficient C as the total number of bolts in the group.

Типы светильников

Each interface can be set as a bolted or a welded fixture, at the beam and at the support.

For the bolted case, см. документацию по болты; for the welded case, видеть сварные швы.

Ограничения детализации

Detailing limitations, the fit-up checks on the connections, are included in the AS connection design. Most of them are based on ASI Design Guides 3-5, while some follow an intuitive engineering approach.

These checks catch the connection that satisfies every strength calculation and still cannot be built or erected, which is a failure mode that strength checks alone will not find.

A pass or fail result for the detailing limitations appears on the Results tab, so it can be identified quickly. В отчете о расчетах также создается таблица, показано ниже, so the item that needs to be modified is easy to pick out.

Detailing limitation check table for a web side plate connection

Другие типы подключения

Should you wish to see more connection types added under AS 4100, вы можете связаться Поддержка SkyCiv.

Попробуйте сейчас

Pick a web side plate, гибкая торцевая пластина, single angle or double angle, enter your beam, support and loads, and the module returns every check with its utilization ratio and the reference behind it, along with the detailing limitation table. Он запускается в браузере, нечего устанавливать, and you can do it without an account.

You can also reach it through the Бесплатный калькулятор проектирования стальных соединений.

Регистрация в бесплатной учетной записи

A free account lets you save and reload your connection files, which the free tool does not. It also gives you access to the rest of SkyCiv’s структурное программное обеспечение, включая Structural 3D.

Автономный проект подключения

Хотите использовать только модуль проектирования соединений? Нажмите на кнопку ниже, чтобы узнать цену за отдельную плату.

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