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Structural Calculations

(Proposed Anchor Bolts Connections

Analysis and Design)

For Emergency Walkway Inside Of Curve In Bored Tunnel

Cross Section At Curve Track of Project Mass Rapid Transit

Lembah Kelang Jajaran Sungai Buloh, Kajang, Selangor

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Content

1. Introduction

2. Design Information

3. Calculations

4. Conclusion

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Introduction

This report is to illustrate whether anchor bolt connection detail of the handrail to the

concrete wall inside the bored tunnel at walkway column is acceptable and complied

with BS standard code.

Tunnel wall is made of concrete with reinforcement and have a thickness of 275mm.

Handrail is bolted to the concrete wall at 2.4m spacing centers. Top chord of handrail

is made of 50x1.2mm thick SS304 tube 2B polished while bottom chord of handrail

is made of 50x1.2mm thick 90 SS304 tube Elbow 2B polished. Handrail is bolted

to the wall using 5mm thick x 75mm(H) x 100mm(W) SS304 plate and 2 number of

Hilti drop in galvanized anchor bolts M12x100mm(L).

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Design Information

1. BS5950: 1:2000 Structural Use of Steelwork in Building

2. BS6399: Code of Practice for Dead and Imposed Loads

Refer to Table 4 Horizontal loads on parapet and balustrades

Horizontal load is 3KN/m UDL loads

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Calculations

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Conclusion

It is concluded that using 2 numbers of M12 Hilti anchor bolts and SS 304 plate 5mm

thick x 75mm height x 100mm wide is acceptable.