This document discusses bamboo-steel composite structural members for use in construction. It describes the natural strengths of bamboo, including high compressive strength and tensile strength close to steel. It then discusses different types of bamboo-steel composite members, including walls, slabs, columns, and beams. The composite members combine bamboo and steel materials to take advantage of the strengths of both. Experimental results showed the members provide good strength, stiffness, ductility, and seismic resistance. The document concludes bamboo-steel composites are suitable for use as lightweight, high-strength building materials.

1. Bamboo-Steel Composite
Structural Member
BOX SECTION
BAMBOO-STEELCOMPOSITE MEMBERS
MAHMUD SAIFULLAH 王方 L163330114
Composite Structure Design 23-12-2019

2. Natural Properties of Bamboo
▪ Bamboo has very strong fiber character.
▪ The compressive strength of bamboo is two times higher
than concrete, while the tensile strength is close to steel.
▪ Bamboo fiber has a shear stress that is higher than wood
▪ Bamboo has wider span than wood.

3. Old Usage of Bamboo in Building
Construction

4. BAMBOO-STEEL COMPOSITE STRUCTURAL MEMBERS
▪ COMPOSITEWALLS
bamboo-steel composite walls are
made from profiled steel sheet and
bamboo plywood, which are combined
to an integral whole by structural
adhesive. There are cavities in the walls.
Therefore, thermally insulating and
soundproof materials such as EPS
particles and pipelines such as electrical
wire can be placed in the wall.
There is an excellent composite effect
between the profiled steel sheet and
bamboo plywood to provide upper
bearing capacity and stiffness.
The walls are excellent in ductility

5. BAMBOO-STEEL COMPOSITE STRUCTURAL MEMBERS
▪ COMPOSITE SLABS
The results of experiments indicate that
the service behavior as a whole of the
bamboo-steel slabs is fine
There is the excellent composite effect
between bamboo plywood and profiled
steel sheet to provide upper bearing
capacity and stiffness
The mechanical properties of the
composite slabs can meet the
requirement of building floor slabs

6. BAMBOO-STEEL COMPOSITE STRUCTURAL MEMBERS
▪ Composite columns
The column is combined by two C
steel as a keel and four pieces of
bamboo plywood stuck on the steel
surfaces used structural adhesive.
The experimental results indicate:
the columns can provide superior
bearing capacity and wonderful
performance under axial
compression
The bamboo-steel column
possesses the excellent seismic
capacity and is a kind of ordinary
civil building structure suitable to
be used in earthquake zones.

7. BAMBOO-STEEL COMPOSITE STRUCTURAL MEMBERS
▪ COMPOSITE BEAMS
I-section bamboo-steel composite
beam is made of 2 cold-formed thin-
wall U-shaped steel plates and 3
bamboo plywood boards
The experimental results indicate
that the composite beams can form
an excellent composite cross-section
and have a good whole work
performance, which is an effective
way to utilize the materials.
They have higher bearing capacities
and larger deformations.

8. Strength & Stiffness
▪ Bamboo has great potential to be used in building construction as a structural
material
▪ In construction and concluded the bamboo could be used as a sustainable
building material for western countries within certain boundary conditions.

9. CONNECTION
▪ To connect the bamboo-steel
composite structure members,
regular steel connectors for wood
and steel structures can be used.
To strengthen the stiffness of the
joint, a steel tube was designed
by welding four steel plates
around the core of the column
and beam connection.
▪ Two steel “T” connectors were
used to bolt the beam with the
column

10. Energy Consumption During Construction
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Energy Consumption During Construction
Energy Consuption Chart
Concrete Structure Wood Structure Bamboo Structure

11. Limitations and drawbacks
Few considerations currently limit the use of bamboo as a universally
applicable construction material
ø Jointing techniques - Although many traditional joint types exist, their
structural efficiency is low. Considerable research has been directed at the
development of more effective methods.
ø Flammability - Bamboo structures are not fire-resistant, and the cost of
treatment, where available, is relatively high.
ø Lack of design guidance and codification - The engineering design of
bamboo structures has not yet been fully addressed. There is little or no data
containing specifications of bamboo.

12. CONCLUSION
▪ As a new-type bamboo-steel composite structural member,
box section bamboo-steel composite beams not only fully
utilize the excellent bending property of bamboo plywood, but
also overcome the instability of the cold-formed thin-wall steel.
▪ It is proper for this kind of composite walls to be used as
structural components for its lightweight, high strength, good
energy-saving, strong resistance of earthquake.

13. REFERENCES
▪ [1] Renjie Zhao and Yunshui Yu: Technology of Bamboo-Based Panels, China
Forestry Press(2002).
▪ [2] Kuihong Wang, Qing Li, and Xiaohui Gao: Present Utilizational Situation and
Deep Exploitation of Bamboo Resources, Journal of Bamboo Research, 19(4):72-
75(2000).
▪ [3] Qisheng Zhang and Fengwen Sun： Bamboo Compound Structure Is Scientific
and Reasonable to Use Bamboo Resources in an Effective Way，Forest Product
Industry, 22(6):4-6(1995).
▪ [4] Xuhong Zhou, Yu Shi and Tianhua Zhou, The Cold Bending Thin-Walled Steel
Structure Low-Rise Housing System, Journal of Architecture and Civil Engineering,
22(2):1-14(2005).
▪ [5] Wei Shan, Yushun Li, Junhua Li, et al. Quasi-Static Test on Profiled Steel Sheet-
bamboo Plywood Composite Walls: Journal of Harbin Institute of Technology Vol.
41, p. 125-129(2009).
▪ [6] Yushun Li, Wei Shan, Tianshi Han, et al. Experimental Study on Mechanical
Behavior of Cold-Formed Thin-Walled Steel Bamboo Plywood Composite Slabs,
Journal of Harbin Institute of Technology Vol. 41, p. 101-105(2009).

14. THANK YOU