Precast reinforced concrete wall install
1 scope
This technology is applicable in civil
construction of non-load-bearing partition installation.
2 construction preparation
2.1 materials and equipment:
2.1.1 precast concrete wall panels: quality
must conform to the precast reinforced concrete quality inspection and
evaluation standards, factory certificate. Should be marked on the wall plate
model and positive and negative numbers, stamped with the inspection.
2.1.2 electrode: E43 electrodes should have
a factory certificate.
2.1.3 connection plate: plain 40x60x40x4
(mm).
2.1.4 connection bars: the diameter must
not be less than 10, the long 100~120 (mm).
2.1.5 cement: No. 425, No. 525.
2.1.6 major equipment: the use of structure
hoisting machinery and tools.
2.2 operating conditions:
2.2.1 according to the construction site
layout shown on store wall storage site should be smooth, solid, prevents
stagnant water, sink. Hold wall plate insert should be strong and stable.
Partition Board type storage.
2.2.2 according to design drawings,
verification and verification of embedded iron parts on the Board are complete
and clean up the debris, rust, above. The rings on the wall to complete a
solid.
2.2.3 Installing floor mounting area is
clean and play on the wall adjacent to the main structure wall panel
installation position vertical line of position. On the floor playing the wall
plate line. Wall panel installation position of model number written on the
floor outside.
2.2.4 checking wall buried parts of the
partition Board and floor connections are complete, the location is correct.
Missing punch again laid up.
3 operational processes
3.1 process:
Installation inspection, correction,
support, reinforcement →
→ welding → seams
3.2 installation in place: wall
installation there are two ways, one is with the construction in front of the
buckle the floor plate into hanging with installation, welding; the other is in
front of the buckle the floor room into the wall of the room against the wall
safe, manually after installation.
3.3 check correction: check when installing
models to prevent the occurrence of an error. Installed already on the floor
when playing line put wedges, stand walls, fixtures on the rings sites on the
wall plate for temporary support in prison. Review the installation location,
offset, perpendicular to the support Board for correction.
3.4 shore reinforcement: partition Board
after correction of horizontal position and vertical position, adding support
site in the ring, will be bottom of the wedge rolling back tight, preventing
displacement, Askew. Plate joints under high 20~30mm is appropriate. No wall is
located directly on the floor doing swing floating shelf, without any
processing.
3.5 welding fixed: corrected partition
Board location, Board structure and embedded parts of walls (or between the
wall) connector plates for submerged parts of solid welding, you must do
three-sided welding, embedded not protruding structural walls.
3.6 seams: wall plate welding after the
sound, around the side of the gap are made of 1:2.5 cement mortar twist compact
mortar of cement dosage 10% in 107 adhesive, concrete joints wider than 30mm
C20 bean filled twist reality. When joints mortar has some strength, then exit
the wedge, the wedge holes filled. Seam mortar should be dense, smooth, Yin Kok
straight, to facilitate the renovation.
4 quality criteria
4.1 project:
4.1.1 use of raw materials should comply
with the design requirements and the provisions of the code, and has a factory
certificate.
4.1.2 components of type, location and
connection fixed-node procedure must meet the design requirements. Partition
wall board factory "certification".
4.1.3 made of pea stone concrete or mortar
joints, measure accurately, filling to compact, careful conservation. Its
strength shall meet the design requirements.
4.2 Basic project:
4.2.1 widget locations, joints,
connections, anchoring practices should comply with the design requirements.
4.2.2 connection plate should face full
welding, welds full ripple even, clean slag and spatter.
4.2.3 splices meets the design requirements
of length and thickness of weld, welds smooth surface, no Burns, dents, welding
tumor, cracks, undercut, porosity and slag inclusion defects.
4.3 allowable deviation, as shown in table
4-42.
Table 4-42
Project tolerance (mm) method
1 vertical-3 2m supporting plate
2 axis offset 3 foot check
3 wall plate slot 5 using a ruler, a
wedge-shaped feeler Gage check
± 4 elevation level or standard of inspection
5 finished product protection
5.1 partition Board pile site should be
smooth, solid, no water or sink. Boards should be inserted within the State,
under wood or timber to prevent breaking or bending.
5.2 partition Board, transport, and
unloading in the process, measures should be taken to prevent jackknifing.
5.3 installation equipment piping to be on
the Board when punching through the wall is strictly prohibited with
sledgehammers pounding the walls, badly damaged wall panels should not be used.
5.4 wall after the correction, the welding
seams in a timely manner, before being seams, wall panels and end wedges wedge
shall not be loosened to prevent wall displacement.
6 quality problems to be noticed
6.1 embedded displacement: the production
of wall panels without careful control, cause difficulties for construction.
6.2 partition Board loading and unloading,
transport, stacking does not pay attention to product protection board short
cord off the wall angle: wall damage, 1:2.5 cement mortar and D% 107 adhesive
patch.
6.3 low component production end of Chi
Qiang, wall deflection.
6.4 welded fence panels as required when
using prepared steel plate connections, prevent welding is not in prison.
Connect with the buried parts should not be missing, prevent points is not
enough.
6.5 wall installation, pulp, seams to
prevent floating shelves of a pendulum.
7 quality records
This standard shall meet the following
quality records:
7.1 component product certification.
7.2 components, model inspection records.
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