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Prefabricated Steel Buildings Detailed Installation

07/17/2024
Prefabricated steel building detailed installation
1. Building system
1-1. Portal rigid frame system
1-1-1.Basic component diagram

1-1-2.Illustrate
Mechanical principles
The portal rigid frame structure uses a transverse rigid frame composed of columns and beams as the main stress-bearing structure, and the rigid frame is a planar stress-bearing system. To ensure longitudinal stability, column supports and roof supports are provided.
Rigid frame
The rigid frame columns and beams are made of H-section steel, and various loads are transmitted to the foundation through the columns and beams.
Support, tie rod
The rigid support is made of hot-rolled steel, usually angle steel. The flexible support is round steel. The tie rod is a pressure-bearing round steel pipe, which forms a stress-bearing closed system with the support.
Roof purlins, wall beams
Generally, they are C-shaped steel and Z-shaped steel. Resists the forces transmitted from the roof and wall panels and transfers the forces to the columns and beams.
1-1-3.The basic form of portal frame
a.Typical portal frame

b.Gantry frame with crane

c. Portal frame with partial second floor

1-1-4.basic node
a. Column foot node

b. Beam and column nodes

Local second-story nodes refer to the multi-layer frame system.
1-1-5.Rigid frame derivative form


Cranes and partial second floors can be arranged in derived form rigid frames.
The essence of the gable rigid frame is also a multi-span rigid frame, but the middle column and the rigid frame column are rotated 90 degrees compared to the cross section.
1-2. Multi-layer framework system
1-2-1.Frame icon

1-2-2.
Illustrate:mechanical model
a. Purely rigidly connected frame: A rigidly connected frame is used in both vertical and horizontal directions.
b. Rigid connection-support frame: Rigid connection is used in the transverse direction, hinged connection is used in the longitudinal direction, and supports are provided in the longitudinal direction to transmit horizontal forces.
c. Supported frame: It is hinged both vertically and horizontally, and supports are provided in both directions to transmit horizontal forces.
d. Sometimes to ensure sufficient stiffness, supports are also provided in the rigid frame.
Frame column
Frame columns can adopt H-shaped sections, box-shaped sections, cross-shaped sections, circular tube-shaped sections, etc. All superstructure forces are transferred to the foundation through the frame columns.
Frame beam
Frame beams generally adopt H-shaped sections. The forces on the floor and roof are transferred to the frame columns through the frame beams.
Support
The support is generally made of hot-rolled steel. Its function is to transmit inter-layer horizontal forces and ensure the stiffness of the structure.
1-2-3.Basic node
a.Column foot node
The column foot nodes are the same as the portal frame system.
b. Column and beam nodes


2.Support,Tie rod
2-1.Illustration

Flexible support between columns Rigid support between columns.
2-2.Illustration
Supports are divided into two types: flexible supports and rigid supports. The flexible support is made of round steel and must be tensioned during installation. It is mainly used in portal rigid frame structures. Rigid supports are made of section steel and are used in structures with high stiffness requirements such as multi-layer frames and lower section supports of crane beams.
The tie rods and supports work together to form a closed force-bearing system. In the case where the support end has rigid components and transmits pressure, there is no need to set tie bars.
The roof horizontal support method is the same as the column support method.
Depending on the needs, the support can also be in the form of herringbone, figure-eight, K-shaped, V-shaped, door-shaped, L-shaped, Y-shaped, single inclined rod, etc.
3.Purlin support
3-1.Illustration

3-2.Illustration
The corner brace is set based on the out-of-plane calculated length of the beam or column compression flange. Corner braces can be made of angle steel or pressed into flat steel.
In multi-layer frame systems, horizontal corner braces are often installed where beams and columns are rigidly connected.

4.Crane beam
4-1.Illustration

Crane beam side span structure


Crane beam intermediate span structure

Standard crane beam diagram
4-2.Illustration
The crane beam is the load-bearing component of the crane and is welded from steel plates.
Deformation joint position processing refers to the side span structure.
When the crane has a large tonnage, a brake truss or brake beam is installed to resist the lateral horizontal load.
5.Canopy

The profiled steel plates for awnings are made of HV-197TD-788 panel and HV-205TD-820 panel.
6.Purlins,wall beams
6-1.C type cold-formed thin-walled steel
6-1-1.Sectional properties of section steel

6-1-2.Install node graph

6-2.Z-type cold-formed thin-walled steel
6-2-1.Sectional properties of section steel

6-2-2.Install node graph

7.Roof and wall profiled steel plates
7-1.HV-203KL-406 panel
7-1-1.Panel drawing

7-1-2.Connection nodes


7-2.HV-380SF-760 Panel
7-2-1.Panel drawing

7-2-2.Connection nodes


7-3.HV-475SF-475 Panel
7-3-1.Panel drawing


7-3-2.Connection nodes

7-4.HV-197TD-788 Panel
7-4-1.Panel drawing

7-4-2.Connection nodes

Illustrate:
The waterproof cavity can prevent water seepage caused by capillary phenomena.
This plate type can be used for roof panels and wall panels, using self-tapping screws to connect to roof purlins or wall beams.
When used as a roof panel, the screws pass through the crest and fixed to the roof purlin; when used as a wall panel, the screws are fixed to the wall beam in the straight section of the trough close to the crest.
7-5.HV-205TD-820 Panel
7-5-1.Panel drawing

7-5-2.Connection nodes

Illustrate:
The waterproof cavity can prevent water seepage caused by capillary phenomena.
This plate type can be used for roof panels and wall panels, using self-tapping screws to connect to roof purlins or wall beams.
When used as a roof panel, the screws pass through the crest and fixed to the roof purlin; when used as a wall panel, the screws are fixed to the wall beam in the straight section of the trough close to the crest.
7-6.HV-225TD-900 Panel
7-6-1.Panel drawing

7-6-2.Connection nodes

Illustrate:
The waterproof cavity can prevent water seepage caused by capillary phenomena.
This plate type is used for wall panels and is connected to roof purlins or wall beams using self-tapping screws; the screws are fixed to the wall beams at the straight section of the trough close to the crest.
7-7.HV-360YC-360 Panel
7-7-1.Panel drawing

7-7-2.Connection nodes
Illustrate
Self-tapping screws pass through the plate and are directly connected to the wall beam.
7-8.HV-300YC-300 Panel
7-8-1.Panel drawing
7-8-2.Connection nodes

Illustrate
Self-tapping screws pass through the plate and are directly connected to the wall beam.
7-9.HV-1000HP-1000 Panel
7-9-1.Panel drawing

7-9-2.Connection nodes

8.Daylight panel
8-1.CV-203-406 Panel

Illustrate
This lighting panel type is used with HV-203KL-406 panel
8-2.CV-380-760 Panel

Illustrate
This lighting panel type is used with HV-380SF-760 panel.
8-3.CV-475-475 Panel

Illustrate
This lighting panel type is used with HV-475SF-475 panel.
8-4.CV-197-788 Panel
Illustrate
This lighting panel type is used with HV-197TD-788 panel.
8-5.CV-205-820 Panel


Illustrate
This lighting panel type is used with HV-205TD-820 panel.
8-6.CV-225-900 Panel

Illustrate
This lighting panel type is used with HV-225TD-900 panel.
8-7.Connection nodes
8-7-1.CV-475-475 Panel Connection nodes

8-7-2.Other panel type connection nodes


Illustrate
The picture above shows the connection node diagram of CV-203-406 plate; self-tapping screws penetrate the lighting plate (and profiled steel plate) and connect to the purlin.
Except for CV-475-475, other lighting panels should be processed as shown in the figure above.
9.Floor support plate
9-1.HG-344-688 Panel



9-3.Connection nodes

Connection nodes

Illustrate
For HG-240-720 plate connection, refer to the HG-344-688 floor bearing plate connection diagram.
10.Special tools are used to weld the shear bolts and frame
10-1.Gutter details


10-2.Steel plate inner gutter
10-2-1.Sectional view

Illustrate
Gutters are formed by folding steel plates; according to the material and coating of the steel plates,
They can be divided into three categories: ordinary steel plate gutters, galvanized steel plate gutters, and stainless steel plate gutters.
11.Ventilation
11-1.Ridge natural ventilator


Illustrate
The ventilator is divided into four specifications: 1m, 1.5m, 2m, and 2.5m according to the throat width Wm. The length is determined according to the required air exchange volume and the length of the house.
The top profiled steel plate can be replaced by a lighting plate as needed.
The frame is set up every 1.5m and is connected to the roof purlins or special beams through the lower connection holes.
11-2. Point ventilator
11-2-1, Φ500 unpowered ventilator


Illustrate:
The waterproof treatment between the ventilator and the roof profiled steel plate can also be treated with steel cover.
12.Door
12-1.Color plate sliding door

Illustrate
Color plate sliding doors can be made into three forms: single-layer color plate, double-layer color plate, and sandwich panel according to needs.
12-2.Color plate double doors

Illustrate
Color plate double doors can be made into three forms: single-layer color board, double-layer color board, and sandwich board according to needs.
12-3. Hollow metal door

Illustrate
Hollow metal doors are used in offices and other rooms in civil buildings and industrial buildings.
13.Window
Illustrate
On the facade, you can choose independent windows or long strip windows.
Window sashes can be fixed sashes or sliding sashes.
Profiles can be selected from aluminum and Upvc.

14.Waterproof cover, decorative cover

Illustrate
W1 takes different values
Due to different internal wall profiled steel plates;
W2 takes different values
Based on differences in brick walls and wall beams.
14-2.The joint between brick wall and profiled steel wall

Illustrate
W1.W2 dimensions vary according to the profiled steel plate shape.
14-3.Top of wall

Illustrate
W value varies according to wall beams and profiled steel plates.
14-4.The junction between gable and roof
14-4-1.Wall protrudes from roof

Illustrate
W1.W2 dimensions vary depending on the outer laminated steel plate of the roof.
14-4-2.The wall is flush with the roof

Illustrate
W1.W2 dimensions vary depending on the outer laminated steel plate of the roof.
14-5.Roof ridge

Illustrate
W1.W2 dimensions vary according to different roof profiled steel plates.
14-6.Hole in wall