Siding Stone (podium part) construction program

I. Project Overview :

Building prestressed reinforced concrete frame structure belongs to which one or two layers of the podium . Choice of materials of natural granite slabs about 30-38mm thick, size control in 1200x630mm range.

Second, the construction process :

( A ) hanging decorative stone facades of the construction process is as follows :

Structure of the surface structure of clean pop vertical lines → → → Bighorn site linked to two vertical wires hanging horizontal position → Receiving → ​​stone saws tank → → posted back gluing flexible reinforcing material support bottom plate bracket → → Place the bottom plate with its positioning → adjustment and temporarily fixed irrigation M20 mortar → → → structure located drain plug bolt holes and stainless steel fasteners → → inlay filling with adhesive on the lower wall needle inserted into the connector hole → → poured into the upper wall of the adhesive next → temporarily fixed upper hole drilled into the wall → → inlaid stainless steel expansion bolt fasteners → → wallboard panels inlaid top seam sealant layer overlay → finishes scrubbing agent → final acceptance.

( Two ) , the construction process live :

1 ) construction and material preparation

( A ) construction teams and equipment ready :

Stone wall plate installation is the final product installation link in the pre-construction work to be fully prepared . Prepare all the necessary tools such as power, saw and saw blades . And in accordance with the actual situation and the progress of the project engineering requirements grouping lined personnel .

( 2 ) steel iron fittings preparation: different styles sizes of stainless steel yards ; HILTI-HSA M10 stainless steel expansion screws ; stainless steel wall screws ; L50Χ50Χ5 galvanized angle ; stainless steel welded branch . Materials approach to determine sample submission meets the design requirements.

2 ) substrate preparation :

Subject to the completion of renovation tower walls above , to ensure that without the use of scaffolding , will be part of the scaffolding tower dismantled scaffolding on the podium to conduct a comprehensive clean-up inspection and adjustment of reinforcement, hanging stone construction to ensure there is enough space and to ensure that the construction construction safety. After removal of the temporary safety net for actinomycetes using theodolite positioning, re- positioning completion actinomycetes tie . Clean up the structure of the pre- made ​​decorative stone surface , simultaneously hanging straight , set square , find the rules , the pop-up vertical and horizontal lines . And in accordance with design drawings and the actual needs of the location of the pop-up lines and installation of stone block line .

3 ) Hanging wire :

According to design drawings , stone before installation in advance with theodolite vertical plane hit bighorn two control lines , playing the horn 20cm away from the position, so always check the accuracy of the vertical hanging wire , to ensure a smooth installation. Vertical line ends hang hang hang on a dedicated rack angle , angle steel frame with expansion bolts at the top of the building bighorn , be sure to hang on a solid , accurate, and easy to disturb the place , and we need to protect and often checks. In the control line , the lower the marking .

4 ) supporting the underlying steel support brackets decorative panel :

( 1 ) hanging stone force principle: hanging stone weight , suffered wind and vibration forces → stainless steel galvanized angle bracket → → → stainless Peng expansion Luo bolt main structure .

( 2 ) steel support bracket structure: This project is a reinforced concrete frame structure , exterior walls of sand-lime brick . Exterior load bearing angle by the standards laid , laid on the construction of the main nodes , each node supporting the main frame came together loads every other node in the vertical direction 2m laid a concrete structure surface Luo Peng expansion bolt with stainless steel , brick walls with stainless steel wall Luo bolt .

( 3 ) Construction of steel support bracket :

A basic situation: As the steel support bracket hanging stone exterior finishes that affect the quality and safety critical projects , so the construction must be in strict construction specifications and construction process for construction. Before installing the bottom support bracket must ensure that the materials used have passed the test .

B steel frame construction :

a) Node Fixed: punch holes in the RC envelope next expansion bolts : playing well in the horizontal surface of the structure , according to design drawings and stone materials drilling position , accurate bombs in the building envelope wall and well marked , and then press point punch , punch with the impact of drilling , drilling with a sharp chisel when the first bomb in advance a good point chisel a point, and then use the drill hole , in the case of structural steel , it can be holes in the horizontal direction move or raise up , when you want to connect using the adjustable iron remaining amount transferred back again . Requirements and structure into the hole perpendicular to the surface , into the hole after the hole Asher took a spoon with a small hook and put expansion bolts, appropriate to the level required for all bolts in place . After each node at supervision and acceptance.

b) Main frame installation: node is complete, review the parting grid line, axis markers on the node indicated by the mark according to design requirements in the vertical direction, the same two nodes set aside the same side of the force L100Χ30Χ8-100 plated zinc angle position, and with two fixed spot , put [100Χ50Χ5 galvanized channel in place , the temporary fixed spot check whether standards and vertical deviation , if the deviation is re- adjusted and fixed spot until the axis of accurate calibration , channel level , upright meet the requirement. Channel positioning and then welded on the other side of the force galvanized angle , according to design all the nodes to be fully welded . Other parts of the channel construction ibid., complete newspaper supervision review and acceptance.

When installing the first welding L50Χ50Χ5-100 galvanized angle welded to the main channel , the solder height lower than the horizontal 5mm, ensuring long segment L50Χ50Χ5 galvanized angle after lap remain at the same level, as in the vertical hanging stone veneer adjustable direction displacement space is very small, so very important to control the overall level degree ; M10Χ35 stainless Luo bolt with the long and the short segment segment galvanized angle galvanized angle temporarily fixed , after reviewing adjustments to ensure the correct position and then tighten fully welded stainless steel Luo suppository .

Primary and secondary rack installation is complete, install lightning protection design drawings welding band, the self- reported supervision after passing the acceptance procedures designed , and then all welds rust corrosion treatment , and then at the design supervision covert acceptance.

5 ) hanging sheet rock installation:

Connected to the iron : stainless steel bolts with design requirements will be fixed on galvanized angle steel pendant on . Adjustment stainless steel pendant position.

Stone plate pumping pits : According to the design position pendant set stone slab pumping pit locations. All pumping pit workshop will be according to the design drawings .

An hanging plate : Sheet steel pendant reach test standard installation and adjustment , vertical position , remove the plate, will have special adhesive pre-prepared stone into the bottom groove with a beat that will hang onto the plate stainless steel pendant , adjust the position to ensure flat plate level , vertical , sub-lattice seam straight, fixed stainless steel pendant , with a torque wrench to tighten the multi remaining adhesive erase. Other empathy , to be in place with all the layers panel , check whether the standard of each plate in a line , if you want to adjust uneven ; wedge pad level low availability ; highly appropriate exit point can be gently wood wedge , and retreated to the panel until the catchy in a horizontal line ; first adjust the level and vertical panel , then check the slab , plate 6mm slot width should meet all the requirements of the design .

An underlying sealing plate hanging : the iron well connected to the side , you can rely on the bottom corner of a panel in place , the installation method and the same with the ordinary plate Ann hanging . After installation plate with 1:3 cement and sand mortar prepared mortar paint additives must be added in order to strengthen its viscosity , filling in the bottom panel 20cm high, the mortar set on the surface drains.

On the top panel hanging : the top panel of the last layer of the normal slate installation requirements, installation and adjustment after the gap in the structure and slate hanging a long pass thick strips of wood , strips of wood hanging after a good , ie the gap between the stone and the wall inside Cypriots put polystyrene board, polystyrene slats slightly wider than the gap so tight packing to prevent leakage of slurry grouting , causing cellular , holes , etc., filling the mouth next to the slate roof boards 20mm as pressure purposes.

6 ) Article pollution stickers , caulking :

All plates were hanged completed, after passing through self- acceptance procedures at supervision . After acceptance of anti-fouling strip along the edge of the panel stickers should be used around 4cm tape type adhesive tape , edge to snap , stickers strict gaps between boards in granite inlay elastic backing strip , and finally embedded in the backing strip Topical neutral silicone seam gun into the seam . Slate inlay bottom seam , be careful not to block the flow tube . According slate color can be added in the amount of plastic mineral pigments .

7 ) cleaning granite surfaces , brush overlay agent:

The granite surface fouling strip ripped off , wipe with a cotton thread to slate , if glue or other adhesive solid debris, gently surgery can eradicate , wipe with a cotton yarn dipped in acetone to clean. Overlay agent in the brush before the construction of knowledge and understanding of weather trends should , rainy days and four or more windy day not construction , pollution prevention film ; Overlay agent by mixing ratio in the brush for a good half an hour before , pay attention to the difference between primer and finish , the best phased operation. Overlay agent formulated to mix , to prevent uneven film formation . Brushing use wool brush , dip paint should not be too much to prevent the flow of technology , as little as possible back to the brush in order to avoid brush marks , requiring no bubbles, no leakage brush, flat brush should be shiny.

8 ) a comprehensive inspection on the hanging wall imperfections timely follow-up treatment, self- reported supervision after passing the acceptance procedures .