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KVPT’s Patan Darbar Earthquake Response Campaign - Work to Date - September 2016

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Left (Top and Bot<strong>to</strong>m)<br />

Structural improvements <strong>to</strong> masonry<br />

walls created by tying the inner<br />

and outer wall plates <strong>to</strong>gether <strong>to</strong><br />

introduce continuity and <strong>to</strong> hold<br />

walls <strong>to</strong>gether, at Radha Krishna<br />

temple project (upper and lower<br />

left).<br />

Right<br />

Upper right sketch shows stainless<br />

steel corner reinforcement between<br />

adjacent plates at Uma Mahesvara<br />

(upper right).<br />

Sketches by Rohit Ranjitkar, 1992<br />

the masons and carpenters <strong>to</strong> identify places <strong>to</strong> add unobtrusive<br />

or concealed strengthening.<br />

and Radha Krishna, was reviewed by the visiting Wood<br />

Conservation Mission of ICOMOS, who described it as<br />

exemplary of how high quality res<strong>to</strong>ration and repair<br />

projects could be achieved in the the Kathmandu Valley.<br />

The development of additional and innovative ways <strong>to</strong><br />

strengthen timber joints and make vertical connections<br />

was an important advance in the general measures <strong>to</strong> improve<br />

connections in repairs and rebuilding. Ranjitkar’s<br />

achievement, notably, followed from his having spent<br />

many hours on the building scaffolding working with<br />

Among these measures were the extension of inner wall<br />

plates, the inclusion of additional timber joints <strong>to</strong> connect<br />

the inner and outer wall plates, and steel reinforcing<br />

angles <strong>to</strong> add stiffness and continuity <strong>to</strong> the structure at<br />

the <strong>to</strong>p of brick masonry walls (eg, at Uma Maheshvara<br />

temple). The addition of timber corner posts extending<br />

down from these stiffened wall plates also added vertical<br />

continuity <strong>to</strong> the timber framing, helping reinforce<br />

the brick masonry and increasing the adaptability of the<br />

structure by adding some redundancy <strong>to</strong> the load path.<br />

Innovative thinking, largely spurred by the difficulties of<br />

procuring lead and stainless steel in the Nepali market,<br />

also led <strong>to</strong> the use of copper sheeting as a damp proof<br />

course during preservation work at Ayuguthi Sattal.<br />

Since chemical treatment and reinforced concrete damp<br />

proof courses were unprecedented in Nepal at the time,<br />

the use of copper sheeting <strong>to</strong> separate timber elements<br />

from masonry elements <strong>to</strong> inhibit water flow was implemented.<br />

71

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