1 scope
This standard is mainly used in industrial and civil
construction bricks outside the outer mold, die, all in-situ shear wall structure installation and removal of the template.
2 construction preparation
2.1 materials and equipment:
2.1.1 supporting formwork: mold, die, including bolts and pads, wall bolts and casing, body bars, ladders and platforms,
and so on.
2.1.2 release agent: methyl silicone and water
based release agent.
2.1.3 the General should have a hammer, AX, drill drill, monkey
wrench, hand saw. Spirit level, wire pendant, crowbar, lifting and rigging etc.
2.2 operating conditions:
2.2.1 the design of engineering structure template design to ensure strength, rigidity and stability.
2.2.2 floor wall elasticity and good lines, door hole location and elevation lines.
2.2.3 finished wall reinforcement, electricity boxes, embedded, embedded finished jambs, check the thickness should meet the requirements, go through acceptance
ofconcealed work procedures.
Wanting to run pulp 2.2.4 in order to prevent large template, before you install the template better mortar screed, screed cannot extend into the walls.
2.2.5 brick internal model structure on the installation template, to clean ash composite columns on a wall at the tongue, cast in
place structures for hanging out the wall shelf template action.
2.2.6 installation template before the template should
be surface cleaned, brush barrier (not allowed in a template in
place brush release agent to prevent pollution of interface between reinforcement and concrete, painted in uniform shall
not be missed area).
3 operational processes
3.1 internal model structure installed templates:
3.1.1 technological
process:
Preparations → templates → Setup → wall panel, Yasumasa catchy → template → fixed templates, an anti-pre-clearance
3.1.2 vertical wall installation order after the first wall, a water plus templates using cranes hanging in order to install in
place, position line adjust the template with a crowbar by wall, symmetrical adjustment template for a
pair of anchor bolts or tilt-rodbolts. Measuring vertical elevation correction with the supporting plate, squareness, level, levels of templates meet the design requirements, tighten bolts at once.
3.1.3 install siding, with baskets bolts or clamps to the upper
and lower ends of Rachel fixed.
3.1.4 checked before clamping bars, utilities embedded pipe
fittings, door hole template, wall bushing is missing, location is accurate, solid installation, weakening sections, clean template before, against a wall of debris.
3.1.5 installed templates, after correction of vertical, wall bolt to lock the two template.
3.1.6 the pros
and cons template after installation, check the wall and die, templatesand floor stairwell wall clearances must
be carefully to prevent leakage, the phenomenon of dislocation. Check each wall and catchy is straight, two with fasteners or bolts templates easy to fix. Finished testing template project, and pouring concrete.
3.2 brick internal model structure installed templates:
3.2.1 the process
flow:
Exterior brickwork → installation and against large templates → Setup → die pre-screening
3.2.3 installed templates, pros
and cons, and die within the same.
3.2.4 concrete exterior wall intersection angle mode, to prevent a poured wall concrete, composite columns outside the brick
walls of bulging should be brick walls withvertical 5cm plank and transverse reinforcement, through wall of steel in Rachel, increases wall rigidity.
3.3 all in-situ structure installed templates:
3.3.1 processes:
Preparations → → foreign shelf within an inner vertical walls, wall templates → Templates → plug templates →
An outer wall inside templates → clamping bars before an exterior side, hidden check → template → pre-screening
3.3.2 in the external wall of
the lower the concrete strength of not less
than 7.5MPa, use an outer wall hanging bolt holes under mounted stainless steel triangular platform.
3.3.3 Installing wall, the inner vertical walls within the templates (installation methodof internal model structure and external installation).
3.3.4 in interior wall template template installation activities of
the outer ends of theplug, it can be made with wooden or iron according to wall thickness, the template closely to prevent when poured wall concrete, concrete flow from the outside end of
the site.
3.3.5 installed inside the wall template, press line template in
place on the floor, and then install the jambs the template.
3.3.6 template before steel, utilities and
other embedded pipe hidden test.
3.3.7 Installing exterior side templates, templates in a metal triangle on the platform, the template is in
place, worn bolt correct, note that templates of construction joints joints must
be tight, solid and reliable, and prevent dislocation and the leakage ofmixture.
3.4 removing templates
3.4.l in at room
temperature conditions Xia, wall body concrete strength must up 1MPa, winter
period construction outside Board within die structure, and outside brick
within die structure, wall body concrete strength up 4MPa only associate split
die, full now poured structure outside wall concrete strength in 7.5MPa, within
wall concrete strength in 5MPa only associate split die, split die Shi should
to with conditions conservation try block compressive strength for associate.
3.4.2 removing templates and templates are installed in
the order in reverse order, first remove split wall after Wall template template, first remove wall bolts, and then release the bolt, making the template back and wall opening. If the template does
not leave with concrete wall surface adsorption or binding used crowbars to move the template out, may
not be catchy to pry the wall template, or use a sledgehammer template. Should ensure
that the removal does not shake when concrete walls, especially split Windows cannot use a sledgehammer when a hole template template.
3.4.3 remove all in-situ structure templates, external walls should
be outside of the template, and then dismantled inside the template.
3.4.4 clear template clutter on the platform, check whether the template hook Pocket trip places, adjusting the Tower arm above the template to be removed and hoisted out the template.
3.4.5 template when hanging to the location, you
must stand, at a steady angle to 75 ° ~80 °, surface cleaning, coating release agent to prevent adhesion of
the mortar.
3.4.6 template should conduct
regular inspection and maintenance to ensure quality.
4 quality criteria
4.1 project: template and bracket must have sufficient strength, rigidity and stability.Area of the supporting part of the bracket should
be adequately supported.
4.2 basic item: out of large templates and template and die at the seams to
be tight,no leakage. Template seams, seam the maximum width should not exceed the specified template contact surfaces should
be cleaned with concrete. Release agent brush evenly.
4.3 allowable deviation is shown in table 4-4.
Cast templates allow deviation for shear wall structure in table 4-4
Tolerance (mm)
Multi-mode high mode
Axis displacement 5 3 feet of wall, check
Elevation ± 5 ± 5 level or cable and check
Wall section dimensions ± 2 ± 2 standard checks
2m 3 3 vertical layer of care with Board examination
Two adjacent surface height difference of 2 2 with a ruler and the ruler check
Surface roughness 2 2 2m
m on foot and wedged feeler Gage check
Displacement of center line of embedded steel
plates 3 3
Displacement of embedded pipe, set
aside the hole Center lines of 3 3
Center line 2 2
Exposed length +10 0 +10 0
Linear displacement of
the Centre of 10 10
Section size +10 0 +10 0
5 finished
product protection
5.1 equipment parts keep the template itself is clean and complete, lifting to prevent collision wall, piling
up reasonable, keeping no deformation of the plate surface. Winter construction of insulation on
the back of the template should be kept intact.
5.2 lifting template in
place to smooth, accurate, and shall not touch hit the floor and he had finished construction parts, not hanging bar. Pry the root when
you adjust the template, be careful of templates the following screed of mortar.
5.3 when the template is removed according to
the procedures, prohibit the use of the hammer struck to prevent concrete cracks on walls, Windows
and doors at the entrance.
5.4 templates and wall surface bond, prohibit the use of tower
cranes Crane die, prevent wall cracking.
5.5 concrete construction in winter to prevent freezing, when the concrete reaches standard rear stripping stripping strength, otherwise it will affect the quality of concrete.
6 quality problems to be noticed
6.1 super thick wall: wall wire errors is too large, template in
position adjustments are not serious, wall bolts do
not all put together, tighten.
6.2 wall and catchy too large: die head clamp without clamping according to designrequirements.
6.3 concrete wall surface adhesion: because of
the bad template cleanup, uneven coating release agent, removal of mould caused by premature.
6.4 die gap is too large to run pulp with a big template: a template is assembled gap is too large, connecting fixed measures are not foolproof, should step up
its inspection and deal with.
6.5 die wall depth: mold die with Recessed floor connections too
much or not secure. Die methods should be improved.
6.6 door hole concrete; Assembly and door hole template and the template is fixed firmly. To portal template must
be carefully designed to ensure size, ease of Assembly and disassembly.
6.7 control template upper elevations.
7 quality records
This standard shall meet the following quality records:
7.1 templates section pre inspection records.
7.2 template project quality assessment information.
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