Multi-storey steel frame structure consist of beams and columns from welded H-shaped steel, hot-rolled H-shaped steel. In this frames, the beam and column system takes the gravity load such as dead and live loads. Now steel frame structure is mostly used for residential, commercial, institutional buildings all over the world.

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The advantages of using steel frame in the construction of multi-storey buildings are listed below:

• Steel, by virtue of its high strength to weight ratio enables large spans and light weight construction.
• Steel frames can have a variety of structural forms like braced frames and moment resistant frames suitable to meet the specific requirements.
• Steel frames are faster to erect compared with reinforced concrete frames resulting in economy.
• The elements of framework are usually prefabricated in the factory under effective quality control thus enabling a better product.
• Subsequent alterations or strengthening of floors are relatively easy in steel frames compared with concrete frames.
• The steel frame construction is more suitable to withstand lateral loads caused by wind or earthquake.

What is a Multi Storey Building?

A multi storey building, just like what its name suggests is a building consisting of multiple storeys or multiple floors. It comes with stairs or lifts. Some buildings also incorporate ramps. Unlike a single storey building, there are more considerations when it comes to building a multi storey building including its points of access and air circulation. Contractors or builders also need to take fire safety, light, maintenance, evacuation, and cleaning into consideration.

There are different kinds of multi storey buildings. First is the low-rise building. From its name, it&#;s a kind of multi-storey building consisting only of a few floors, usually 4 or less. A mid-rise building is one that comes with 5-10 storeys and comes with a lift. A high-rise building is one that has 7-10 storey. There are also skyscrapers consisting of 40 or more storeys, supertall buildings that go over 300m and megatall buildings going as high as 600m.

How Do You Make a Multi Storey Building?

There are different steps to follow when it comes to making a multi storey building and here are the ones use by builders:

Design Process

This process usually involves the use of software or programs to ensure the safety and feasibility of the design. It starts with creating the formwork. Licensed professionals will have to design the formwork. The staircase design is also a part of the design process since this is going to be a major part of the multi storey building. Additionally, it will also include designs for the slabs and the deep beams.

Foundation

Laying out the foundation is a crucial part of the process since it will handle most of the lateral weight of the building. First, excavation should be done. It involves digging trenches and holes as well as leveling the ground. Some contractors already have excavation equipment while others might have to outsource it to other companies that will charge on an hourly basis.

Once the excavation is done, the surface will be &#;dressed&#; or leveled. PCC will then be poured over the dressed surface and then foundations and columns will be laid out.

Casting the Columns

Laying out the columns involves the use of link bars and column ties. This depends on the size of the structure. There are specific requirements for each size of the building. An L Bar is used to displace the main bars included. Contractors will need to check the height of the cast. It should be accurate. They also need to check that the formwork plumb is good.

After this comes the laying out of the beam bottom and the checking of the slabs.

How Do Multi-Level Steel Buildings Work?

The building process starts with the design. Even when the original plan is only for a single-storey building, it should be considered as if you are building a multi-level steel building to ensure flexibility and stability.

Multi-level steel building process depends greatly on the ground circumstances. If there is higher wind loading, the price for structural frame increases per floor area.

But steel is the most suitable material for providing stability to a multi-level building. It prevents frame sway thanks to the beams and columns as well as the spatial continuity between them. Steel braced frames can also be used to provide resistance to torsional load as well as lateral load.

What are the Advantages of Multi Storeyed Buildings?

Why go for multi storeyed buildings? The vertical structure of multi storeyed buildings offers a lot of advantages, primarily, additional space without taking up more square footage. There is more storage space for warehouses and it makes it easier to move materials, thanks to lifts.

In the case of service facilities, multi storeyed buildings are also good because of their enhanced efficiency. With multi storey designs suitable for service facilities, the costs of heating can be reduced. There are extra measures done to prevent heat loss in a multi storey building, thereby reducing the electrical costs.

It also creates a nice place to work in. Multi storey buildings enjoy an aerial view, which can help boost morale in the workplace.

There is also better productivity. Multi storey buildings are designed properly with ventilation, lighting heating, and access in mind. That means it creates a space that is more conducive to productivity.

How Many Tons of Steel Are in a Multi Storey Building?

Most commercial buildings will require 20-30 pieces of steel every day for the duration of the building process. That equates to about 10-12 tons of steel. But this will also depend on a lot of things including the design. There is no specific amount of steel for each type of building because it will depend on design and size.

If the structure is load bearing, something that is common when said structure is installed in a rural area, the building can require structural steel amounting to up to 1.5 metric tons for every square feet of space. This will also include parts such as roof slab, lintels, beams, and shades. The minimum requirement is 1.2 metric tons.

Components & Accessories

A multi storey steel building can be composed of the following parts and accessories:

Frame

The main or primary frame is made up of two types of members: hot rolled and built-up. Built-up members usually make up the 90% of the overall weight of the frame while hot rolled members make up the rest.

Secondary

Purlins and eave struts are some of the secondary members included in prefab buildings. They are generally used in building warehouses, sheds, and even canopies. That is because of their lightweight and economical properties. Eave struts, particularly, provide additional support for the frame and the roof.

Roofing

Roofing is an indispensable element to multi storey steel buildings. They bring lightweight features to the table Because of their excellent weight ratio and weather proof functionality, they can be relied on not to succumb tt corrosion easily.

They can be used alongside roofing sheets that are also durable. Three types of roofing sheets commonly used for multi storey steel building purposes are tiled, corrugated, and troughed. They are all long-lasting and offer excellent fire-resistant properties. Their lightweight features make them easier to install.

Trims/Flashing

Eave gutter and trim, gable trim, downspouts, flashing, and curved eave panels make up a multi store building as well. They are usually made from steel, albeit coated with Aluzinc.  They can also be made from aluminum sheets. These are pliable enough to be shaped in any form using folding machines and presses. These trims and flashings help make the building more resistant to harsh weather conditions and they also contribute to the neat appearance of a building.

Some of the accessories that are used in multi storey buildings included doors, insulation, windows, ventilators, and louvers. These can be sourced from third party providers or can be manufactured in-house.

The accessories and trims used in a building will depend on the design, so each building will require different kinds of trims and accessories.

Multi-Story Steel Structure

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The multi story steel structure consists of welded H-beams and hot-rolled H-beams and columns. In this framework, the beam-column system is subjected to gravity loads, such as static and live loads. Now multi story steel structures are mainly used in residential, commercial and institutional buildings around the world.

Multi-Story Steel Structure Parameter

Product name

Multi-Story Steel Structure

Main Steel Frame

Column

Q235, Q345 Welded H Section Steel

Beam

Q235, Q345 Welded H Section Steel

Secondary Frame

Purlin

Q235 C and Z purlin

Knee brace

Q235 Angle Steel

Tie Rod

Q235 Circular Steel Pipe

Brace

Yunsheng supply professional and honest service.

Q235 Round Bar

Vertical and Horizontal Support

Q235 Angle Steel, Round Bar or Steel Pipe

Maintenance system

Roof Panel

EPS Sandwich Panel /Glass Fiber Sandwich Panel /

Rock Wool Sandwich Panel / Pu Sandwich Panel /Steel Sheet

Wall Panel

Sandwich Panel / Corrugated Steel Sheet

Accessories

Window

Aluminiumn Alloy Window / PVC Window / Sandwich Panel Window

Door

Sliding Sandwich Panel Door / Rolling Metal Door / Personal Door

Rainspout

PVC

Live load on Roof

In 120kg/Sqm (Color steel panel surrounded)

Wind Resistance Grade

12 Grades

Earthquake-resistance

8 Grades

Structure Usage

Up to 50 years

Temperature

Suitable temperature.-50°C~+50°C

Finishing Options

Vast array of colors and textures available

Paint Options

Alkyd paiting, two primary painting, two finish painting(gray paint, red paint, white paint, epoxy zinc etc.) Or Galvanized.

Multi Story Steel Structure Features

1.Good ductility of steel, good seismic performance of multi storey steel frame

2.Light weight: multi storey steel buildings weight is about 60% of the concrete structure, can greatly reduce the cost of foundation and structure.

3.Short construction period: multi story steel structure due to high decomposition degree, construction speed is about 1.5 times faster than reinforced concrete structure.

4.Small structure area: steel column area is about 1/3 of concrete column, so multi storey steel buildings saving building area at around 3%.

5.The height is low: the steel beam section is generally shorter than concrete, and the pipeline can pass through the steel beam web.In the same height, multi story steel building allows more floors to be designed to increase floor space.

Multi Storey Steel Frame Advantages
Steel, with its high strength-to-weight ratio, can achieve long spans and lightweight structures. Multi storey steel frames can take a variety of structural forms, such as support frames and flexural frames, which are suitable to meet specific requirements. Multi storey steel frames can be installed faster and therefore more economically than reinforced concrete frames. The elements of the multi story steel structure are usually prefabricated in a factory and subject to effective quality control, resulting in a better product. It is relatively easy to make subsequent alterations or reinforce floors with multi storey steel frames compared to concrete frames. Multi story steel structures are better suited to withstand lateral loads caused by wind or earthquakes.

The Advantages of Using Steel Frames in Multi-storey Building Construction Are As Follows

Multi-Story Steel Structure Applications

In the construction of residential buildings, the multi-storey steel structure provides a flexible, reliable and cost-effective solution because of its use of slender floor beams and light multi storey steel frame with steel-filled walls. Multi story steel structures are widely used in the construction of high-rise towers and row houses.

For commercial buildings, multi-storey steel structures offer plenty of flexibility in terms of design and aesthetics. Smaller and smaller columns can create more space and also make the foundation lighter. Multi storey steel frames are commonly used in multi story steel buildings, such as multi-storey car parks, high-rise commercial buildings, airports and coat hangers, sports stadiums, subway stations and train stations.

Institutional buildings such as hospitals and schools often have specific requirements, such as ramps or equipment and machinery areas. These needs can be met by installing multi-storey steel buildings that offer design flexibility, low maintenance, durability, and faster construction times.

Multi-Story Steel Building Display

Multi-Story Steel Structure Description

Our multi story steel building is a building whose structure consists of steel components and fittings. All components and accessories of the multi storey steel buildings are manufactured in our factory, cutting, welding and drilling in strict accordance with the manufacturing drawings to ensure that the tolerance is less than 2mm. Compared with traditional concrete buildings, more concrete pouring and more labor are required during the construction process, which can significantly reduce the customer&#;s installation costs.

The assembly of multi story steel building is simple and easy. We will provide detailed manufacturing drawings for producing structural parts in our factory. You can choose professional or do-it-yourself installation to build your home according to your preference.

Multi-Story Steel Building Roof And Siding
Roof panels and wall panels of multi-storey steel buildings are divided into two types: corrugated veneer and sandwich panels. Single-color panels are usually used in buildings without thermal insulation requirements, relying on purlins or wall hoops to form roof and wall enclosure structures.

Sandwich panels are mainly used in buildings that require thermal insulation. The core material of the sandwich panel mainly includes polystyrene, polyurethane foam, rock wool, glass wool, etc., and the suitable core material is selected according to different needs.

Multi Story Steel Structure FAQs
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What are the steps of multi story steel structure design?

1. Judging whether the structure is suitable for steel structure, 2. Structural type selection and structural layout, 3. Estimated section, 4. Structural analysis, 5. Engineering judgment, 6. Component design, 7. Node design

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What are the four types of multi story steel structure?

Which foundation is used for multi story steel structure?

How to pack the products?

Why Choose Speed Steel As Your Multi Story Steel Structure Manufacturer?
Why Choose Speed Steel As Your Multi Story Steel Structure Manufacturer?
Experience
More than 20 years of rich experience in multi story steel structure, with strong technical development and product design capabilities.

Why Choose Speed Steel As Your Multi Story Steel Structure Manufacturer?
Design
Professional and efficient design team to provide excellent design for your multi storey steel frame project.

Why Choose Speed Steel As Your Multi Story Steel Structure Manufacturer?
Service
Perfect after-sales service to ensure quick solution of customer problems.

Why Choose Speed Steel As Your Multi Story Steel Structure Manufacturer?
Price
Favorable price, large-scale production, on time delivery, for you to save costs.

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