STRUCTURAL CONCEPT STEEL STRUCTURE DESIGN

Foundation Element

3 piles group is selected as the foundation element for the structure.

The dimension of pile is 200mm x 200mm. Each pile has working load value of 450kN. However, 80% of the working load is used as the pile bearing capacity (0.8 x 450kN = 360kN). the soil bearing capacity is assumed as 200 3

Note: All dimension in cm

Source: OKA REINFORCED CONCRETE SQUARE PILES

Steel Structure Design

Drawings

Steel Structure Design

Detailed Drawings

Tree House Structural Design

GERMAN TREEHOUSE SCREW –“GTS ALLstar” it can take enormous loads:

● up to 2500 kg in softwood

● up to 4500 kg in hardwood

STATIC SUPPORT

The Static Support is screwed to the underside of the wooden beam and pushed onto the shaft of the GTS.

JAPANESE CEDAR TREE

Japanese cedar is a woody, needled evergreen tree that is indigenous to central and southern Japan as well as China. It is a member of the Cupressaceae (cypress) family. It may be conical to pyramidal in shape, 50 to 70 feet tall, and 20 to 30 feet wide.

Distance Rings are used to determine the exact position and the distance to the tree.

Tree House Platform

Due to the high tension in the bridge cables, they should be fixed to a sufficiently strong point on the tree.

Eye bolts in the style of lag bolts (ie a 6-8" threaded section), should be fitted at 45-90° to the direction of pull. This lowers the risk of the bolt pulling out under load.

Long bolts passing all the way through the tree can take much higher loads because they can be lined up with the cable.

Tree House Structural Design

Spiral Staircase

Spiral Staircase Modelling Result

Tree House Structural Design

Modellingusingstaadpro

Column To Column

Inter-column connection

The connections include an additional steel plate and resilient layers to provide improved ductility and seismic energy dissipation. The ability to dismantle the connection and separate the modules is one benefit of employing bolted connections in steel modular structures.

Steel connector plate

Since the connector plate and column end plates do not come into touch with one another to create friction, the main method of weight transfer in this connection is through bolt bearing. This extra plate is expected to deform and contribute to the connection's overall energy dissipation, which will significantly lessen the seismic energy that is sent to the modules.

Resilient material

Between the steel connector plate and steel column plates is an elastic material with a shear modulus of 0.3 MPa, such as rubber. This connection can be categorised as a friction-type connection since the connector plate and resilient layers experience force transmission as a result of the resulting friction. The system will receive additional dampening from the robust layers, reducing the need for significant connector plate deformation.

Main Steel Frame

Modular Joint In Truss System

The modular joint is a prefabricated built-up section composed of a flat web plate welded to flat and curved flange plates as shown in

Summary Of Structural Design

Space Frame Structure (70m x 43m)

Design Code EN 1993-1-1: Eurocode 3: Design of steel structures

Steel Column UKC 356x406x340 (2m x 2m spacing)

Steel Beam UKB 305x127x48

Steel Hall Structure

Design Code EN 1993-1-1: Eurocode 3: Design of steel structures

Steel Column CHS 355.6mm (8.0mm thk), CHS 457.0 (8.0mm thk)

Steel Beam UKB 356x171x57, UKB 406x178x67, UKB 406x178x74

Diagonal Member RHS 200x100x60 Unequal Angle 80x40x5

Slab Steel Composite Slab (250mm thk)

Bondek Sheet 1.25mm thk

Tree house structure

Platform

Bridge

German Treehouse Screw – “Gts Allstar” Static Support

Distance Rins

Main cable - 6x19 Fibre Core Galvanized

Steel Wire rope

Rope Net

12” x 6 Wood Beam

10mm dia. MS Pipe

Spiral staircase

150mm dia. MS pipe

RHS 25mm x 50mm