Restoration of Darbar Hall at University College for Women, Koti, Hyderabad Phase I
Phase I Conservation
Works
Former British Residency,
University College for
Women, Koti, Hyderabad
Progress Report
July 2016
WORLD
MONUMENTS
FUND
Restoration of Darbar Hall at University College for Women, Koti, Hyderabad Phase I
CONSULTANTS
Ar. Ravi Gundu Rao
Ar. B. Sarath Chandra
Ar. Anuradha Naik
Ar. Tapan Mittal Deshpande
Ar. Apoorva Pillay
Ar. Anshul Rawat
JEERNODHAR CONSERAVTORS PVT. LTD.
Nilesh Thakkar
Gautam Ramesh
WORLD
MONUMENTS
FUND
STATE ARCHAEOLOGY DEPARTMENT
N.R. Visalatchy, Director
Raheem Shah, Deputy Director
OSMANIA UNIVERSITY
UNIVERSITY COLLEGE FOR WOMEN
Prof. B.T. Seetha, Principal
Prof. Y.L. Srinivas, PRO
BUILDING DIVISION
B.L.N. Reddy, Consulting Chief Engineer
Srinivas Reddy, Executive Engineer (EE)
V. Devapriya, Dy EE
D. Anjali, AEE
PROJECT TEAM
Restoration of Darbar Hall at University College for Women, Koti, Hyderabad Phase I
Items of Work
1. Clearance & Dismantling works
Item No. 16 Dismantling madras terrace in western balcony
Item No. 11 Clean removal of old plaster from walls
2. Structural consolidation
Item No. 5 Restoration of wooden structural system in Darbar hall balcony
Item No. 23 Restoration of old deteriorated gutter channel on terrace
Item No. 24 Provision of teakwood for structural restoration
Item No. 46 Recycling old wood dismantled from the building for restoration purposes
3. Consolidation works
Item No. 39 Stitching of cracks using stone lintels (50x150x1000mm)
Item No. 40 Stitching of cracks using SS clippings in western balcony
4. Protection & Finishing works
Item No. 26 Providing Anti termite treatment as per IS 6315
Item No. 30 Providing and applying steel protection coating
Item No. 35 Plastering with Lime Surkhi plaster of thickness 25mm including preparation of mortar
Item No. 36 Additional thickness of 20mm of Lime plaster as per the original thickness of the plaster
Restoration of Darbar Hall at University College for Women, Koti, Hyderabad Phase I BAR CHART SHOWING STATUS OF WORK
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Finished items of work
Restoration of Darbar Hall at University College for Women, Koti, Hyderabad Phase I
STAGES OF WORK → 2
After the structural consolidation of the arch .Traditional lime plaster (1:3) in the room of roughplaster of 1.5” thickness applied after.
LOWER GROUND FLOOR
STAGES OF WORK → 1
STRUCTURAL CONSOLIDATION: CRACK STITCHING
Mason putting in the SS clip
CONSOLIDATION: LIME PLASTERING
The south eastern Basement room had majorcracks in the arch. This was addressed bystitching using SS clipping rod which has a12mm dia. and is 2’ long. The rods are appliedwith a layer of anti-corrosive paint. The ends ofthe rod are bent 6’’ each to be inserted into themasonry.
Restoration of Darbar Hall at University College for Women, Koti, Hyderabad Phase I
CONSOLIDATION: LIME PLASTERING
LOWER GROUND FLOOR
STAGES OF WORK → 1
Traditional lime plaster(1:3) 1 inch thick on thecircular staircase walls afterthe careful removal of olddecayed plaster.
Restoration of Darbar Hall at University College for Women, Koti, Hyderabad Phase I
STAGES OF WORK → 1
Duration of work: 1 weekStatus: ongoing
STRUCTURAL CONSOLIDATION- CRACK OPENING
STAGES OF WORK → 2
UPPER GROUND FLOOR
Removing theplaster inUGSER toassess thecracks in themasonry.
• The cracks wereconsolidated byremoving theplaster.
• Inserting granitelintels(50mmx150mmx1000mm) in thecracks.
• At an interval of1-1.2m to ensurethat there’s nofurther growthof crack.
Crackstitching inthe billiardsroom.Usinggranitestone lintel
Restoration of Darbar Hall at University College for Women, Koti, Hyderabad Phase I
STAGES OF WORK → 1
Duration of work: 2 daysStatus: completed
WESTERN YARD
INSPECTION: BUILDING FOUNDATION
The earth on the north west cornerof western balcony, was excavatedto establish the original ground leveland to examine the foundation
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A trench of 0.9m X 1.8m X1.8m was dug adjacent to thewall of western balcony.The excavation exposed theoriginal ground level andfoundation.A cast iron pipe was alsodiscovered near the northwest corner of the balcony.
Restoration of Darbar Hall at University College for Women, Koti, Hyderabad Phase I FIRST FLOOR
STAGES OF WORK → 1
Starting of work: 2.07.2016Status: complete
2
After replacing the wooden structural member the new wooden planks(1” thick)were relayed on the balcony as the older ones were decayedand deteriorated.
STRUCTURAL CONSOLIDATION- DARBAR HALL BALCONY
The old plankswere reused infront of theentrances toadjacent andopenings to thebalcony, otherarea of thebalcony wereredone using thenew wood of 1inch thickness
Faulty and decayedstructural woodenmembers werereplaced wherevernecessary.Black japan wasapplied to the portionembedded into thewall.
Relayed old wood at the entrance
Restoration of Darbar Hall at University College for Women, Koti, Hyderabad Phase I FIRST FLOOR
STRUCTURAL CONSOLIDATION- CIRCULAR BALCONY
STAGES OF WORK → 1 2
The decayed rafters in the circular balcony were replace bynew wood. Matching the size and joinery details of the olderwood (4” X 6”) The rafters were inserted inside the wall till itsentire thickness, i.e. 3 feet.
The new and reused wood in the balcony is treated withanti-termite solution the portion of the rafter inside thewall is painted with black japan.
Status: ongoing
The joints on the circular balcony were strengthened using SS L- shaped plates, after which the new wooden planks were re-laid on the balcony screwing them to the rafters. Wooden strips were used along the circular balcony to give it a circular look.
Restoration of Darbar Hall at University College for Women, Koti, Hyderabad Phase I
STAGES OF WORK → 1 2
The red oxide flooring of western balcony wasremoved exposing deteriorated madras terrace. Theexposed madras terrace has cracks and the rafterwere deteriorated.
Status: ongoing
Cracks and decayed wooden member in the terrace.
STRUCTURAL CONSOLIDATION- CIRCULAR BALCONY
FIRST FLOOR
The load on the madrasterrace was kept for aperiod of 1 weak.
Deteriorated wooden rafters
Area under major distress in the western balcony
To examine the strength ofmadras terrace roof a uniformload of 400 kg was put on thecritical area of the terrace. Theload on the madras terrace waskept for a period of 1 week.
Restoration of Darbar Hall at University College for Women, Koti, Hyderabad Phase I
STAGES OF WORK → 1 2
A groove was made in thee wall adjacent to the gutterchannel to insert the lead sheet, in order to prevent anywater percolation along the edges of the lead sheetadjacent to the wall
After inserting the lead sheet in the groove the jointswould be soldered and sealed with another piece of leadStarting of work: 05.07.2016
Status: On-going
TERRACE
STRUCTURAL CONSOLIDATION- GUTTER
Restoration of Darbar Hall at University College for Women, Koti, Hyderabad Phase I
STAGES OF WORK → 1 2
The skylight in the dome was inspected. Thewood along the lining of the opening wasdeteriorated due to moisture ingress, whichwas removed carefully.After removing the wooden pieces it wasfound that the dome had wooden structuralsystem with a layer of madras terrace aboveit.The wood inside the dome is proposed to beexamined using endoscopy.
Starting of work: 20.07.2016Status: ongoing
TERRACE
CONDITION ASSESSMENT: DOME SKYLIGHT
Decayed wooden members inside the dome
New wooden pieces were installed (temporarily) toprevent any further damage in the wooden membersof the dome
Wooden tie beams
wooden ribs