Basement is encorbelmented, and base plate is inverse to make structure
Technical field
This utility model is related to a kind of basement and encorbelments that base plate is inverse to make structure, it is adaptable to which outer wall of basement chooses larger knot
Structure position is constructed, and integrally chooses including basement or the partly position construction such as the larger ventilation shaft of protrusion, equipment raise.
Background technology
In recent years, with the fast development of China's building trade, cast-in-situ steel reinforced concrete cantilevered structure industry with civilian
Apply in building quite varied, by planning, the factor such as practical, attractive in appearance affected and restriction, the modern times that are in picturesque disorder, showing characteristic especially
Architectural image makes structure treatment increasingly tend to complicate, and application of the cantilevered structure in engineering construction is also more and more wider therewith
General.How cantilevered structure is rationally set, it is ensured that the practical safety of structure, more and more causes everybody concern.Encorbelment balcony, verandah,
Cornice, rain cover etc. is common version in construction project.
" encorbelmenting " structure is very common in architectural engineering, deals with nor too complicated, but occurs in ground when " encorbelmenting "
During lower portion, such as:One layer above basement outwards chooses a part than following one layer or outer wall of basement protrusion is larger
Ventilation shaft, equipment raise situations such as, its difficulty of construction will be than much more complex on the ground.Because at its underground position, being related to
Basement waterproofing below cantilever part, backfill are closely knit, the impact that cantilever part bankets with the sedimentation of main building basic synchronization to ground
Problem.
In sum, although existing basement is encorbelmented, construction of bottom plates method has achieved good effect in construction
Really, but in the larger situation difficulty of construction of reply cantilever part span than larger, at the same operability, structural strengthening, cost,
The aspects such as efficiency of construction still have improvable place.In consideration of it, needing a kind of Stability Analysis of Structures of utility model, construction party at present badly
Just, the excellent basement of economic benefit is encorbelmented the construction method of base plate.Being encorbelmented using basement of the present utility model, base plate is inverse to be made
Structure is constructed, easy construction and cheap, and most of part is reusable, with certain economic technology benefit.
Utility model content
The purpose of this utility model is that providing a kind of basement encorbelments base plate against structure is made, and makes every effort to ensureing overall structure
Optimizing construction technique, the effect of simplified construction process while compliant is required, and with outstanding economic benefit, improve
Project benefit and efficiency.
For realizing that above-mentioned technical purpose, this utility model employ technical scheme below:
Basement is encorbelmented, and base plate is inverse to make structure, sole plate, high-pressure rotary jet grouting pile, Prefabricated Concrete lateral retaining wall, high-pressure rotary-spray piling wall,
Deformation adjustment layer, predetermined level plate, floor plates of encorbelmenting formwork system and under cast-in-place exterior wall single side formwork system;Mark at blotter bottom
Eminence sets high-pressure rotary jet grouting pile and high-pressure rotary-spray piling wall, the pre-buried anti-float anchor rod of high-pressure rotary jet grouting pile stake top;High-pressure rotary-spray piling wall is arranged
Under at cast-in-place exterior wall, insertion Prefabricated Concrete lateral retaining wall before initial set, Prefabricated Concrete lateral retaining wall are provided with wall rib and tongue and groove;On blotter
Portion arranges deformation adjustment layer, up and down bed course respectively on concrete underlayer and concrete, installs predetermined level plate on concrete at the top of bed course;Prefabricated
Bar shaped notch is left in horizontal plate, and has overhanging reserved dowel, respectively with pre-buried straight thread in the wall body structure of both sides
Sleeve is connected;Joint strengthening upper steel plate is arranged in the middle part of predetermined level plate, and joint strengthening lower steel plate is arranged on bed course on concrete, anchor pole
Connecting plate is arranged on predetermined level top of the plate portion, is provided with rubber support on anchor pole connecting plate.
As preferred:Under cast-in-place exterior wall single side formwork system by adjustable frames, transverse connecting rod and oblique connecting rod group
Into.
The characteristics of this utility model has following and beneficial effect:
(1) structure construction stage cantilevered structure position beam, wall press normal procedure construction with other portion structures indoor, wait to lead
Base plate adverse construction method is poured after encorbelmenting after building foundation deformation settlement stability, malformation is stable.
(2) the deformation adjustment layer adjustment structure deformation for being combined using blotter and styrofoam, effectively solving underground
Room exterior wall chooses filling position sedimentation velocity below structure if greater than building settlement speed, and waterproof layer may be caused to depart from
Concrete slab, the member stress situation shape if filling position sedimentation velocity is if greater than building settlement speed to end of encorbelmenting
Into adverse effect problem.
(3) during exterior wall of encorbelmenting under is using Prefabricated Concrete lateral retaining wall insertion high-pressure rotary-spray piling wall with ribbing, and by wherein pre-buried
Straight screw sleeve connection template, realize single side formwork system, high construction efficiency, convenience.
(4) encorbelment, strengthen node, while both sides exterior wall is equal
Overhanging dowel is reserved with, being connected firmly of make to encorbelment base plate and both sides exterior wall, stable.
Description of the drawings
Fig. 1 is that this utility model basement encorbelments that base plate is inverse to make structural representation.
Fig. 2 is drawing A;
Fig. 3 is A-A sectional drawings;
Fig. 4 is single side formwork system schematic diagram;
Fig. 5 is main structure construction figure;
Fig. 6 is this utility model process chart;
In figure:1- sole plates, 2- pile foundations, 3- high-pressure rotary jet grouting piles, 4- anti-float anchor rods, under 5-, cast-in-place exterior wall, encorbelments on 6-
Exterior wall, 7- are encorbelmented base plate, and 8- encorbelments floor plates, external wall waterproof layer under 9-, external wall waterproof layer of encorbelmenting on 10-, and 11- base plates of encorbelmenting are prevented
Water layer, 12- high-pressure rotary-spray piling walls, 13- Prefabricated Concrete lateral retaining walls, 14- wall ribs, 15- tongue and grooves, 16- screw rod branch sleeves, 17- is to drawing
Screw rod, exterior wall side form under 18-, 19- single side formwork systems, 20- shelve platform, the pre-buried straight screw sleeves of 21-, 22- backfills,
23- blotters, 24- concrete underlayers, 25- deformation adjustment layers, bed course on 26- concretes, 27- predetermined level plates, 28- bar shaped notches,
29- reserves dowel, 30- joint strengthening upper steel plates, 31- joint strengthening lower steel plates, 32- anchor pole connecting plates, 33- rubber supports,
34- sole plate absolute altitudes, 35- blotter absolute altitudes, 36- are encorbelmented floor plates formwork system, 37- screw rods, 38- adjustable frames,
39- transverse connecting rods, the oblique connecting rods of 40-
Specific embodiment
Present embodiment light plate solder technology, high-pressure rotary jet grouting pile piling technique, installation of embedded parts rule of operation, concrete
The conventional construction technical requirements etc. such as pour to repeat no more, emphasis is illustrated the basement that this utility model is related to encorbelment base plate is inverse and made knots
The embodiment of structure construction.
Basement shown in reference picture 1-5 is encorbelmented, and base plate is inverse to make structure, sets high-pressure rotary jet grouting pile at the absolute altitude of blotter bottom
3rd, high-pressure rotary-spray piling wall 12, the pre-buried anti-float anchor rod 4 of high-pressure rotary jet grouting pile stake top.
High-pressure rotary-spray piling wall is arranged on down at cast-in-place exterior wall 5, insertion Prefabricated Concrete lateral retaining wall 13, Prefabricated Concrete lateral retaining wall before initial set
It is provided with wall rib 14, tongue and groove 15.
Blotter top arranges deformation adjustment layer, up and down bed course 26, bed course top on concrete respectively on concrete underlayer 24, concrete
Portion is installed by predetermined level plate 27.
Bar shaped notch 28 is left in predetermined level plate, and has overhanging reserved dowel 29, tie with the body of wall of both sides respectively
Pre-buried straight screw sleeve 21 in structure is connected.
Inverse three node layer of structure setting of making strengthens steel plate, and joint strengthening upper steel plate 30 is arranged in the middle part of predetermined level plate, is saved
Point is strengthened lower steel plate and is arranged on bed course on concrete, and anchor pole connecting plate 32 is arranged on predetermined level top of the plate portion, arranges on anchor pole connecting plate
There is rubber support 33.
Under cast-in-place exterior wall single side formwork system be made up of adjustable frames 38, transverse connecting rod 39, oblique connecting rod 40.
As shown in fig. 6, basement is encorbelmented, the inverse construction procedure for making structure of base plate is as follows:
1) foundation excavation and pile foundation construction:Excavation of foundation pit to blotter absolute altitude 35, high-pressure rotary jet grouting pile 3 of constructing, diameter 2-
3m, is provided with anti-float anchor rod 4 in high-pressure rotary jet grouting pile, anchor pole is 20mm diameter reinforcing bars, and length is 5m, overhangs stake top 50cm;High
12 synchronous construction of pressure rotary-spraying piling wall, the same high-pressure rotary jet grouting pile of diameter, position are arranged on down at cast-in-place exterior wall 5, are inserted before concrete initial set
Enter Prefabricated Concrete lateral retaining wall 13, Prefabricated Concrete lateral retaining wall band wall rib 14, tongue and groove 15, and be embedded with screw rod branch sleeve 16.
2) cast-in-place external wall construction under cantilever part:Treat that high-pressure rotary jet grouting pile 3, high-pressure rotary-spray piling wall 12 reach design code intensity
Afterwards, excavation pit is to foundation slab structure bottom absolute altitude 34, under cast-in-place exterior wall lateral surface along 13 vertical cut of Prefabricated Concrete lateral retaining wall, open
Trailing flank cleaning is dug, pre-buried 16 exposing surface of screw rod branch sleeve is made.Screw arbor with nut at both-ends 17 is installed, Screw arbor with nut at both-ends is 45mm, single
Collateral mould pours down cast-in-place exterior wall;Pour and complete, carry out down the construction of waterproof layer of cast-in-place exterior wall, inner side is using spray film waterproof.
3) Cantilever Beams construction:When reserved cantilevered plate position reinforcing bar is reserved, the joint location of reinforcing bar, intermediate plate colligation is controlled
Shi Caiyong one end gas pressure welding, one end overlap welding connection;Cantilever Beams together carry out cantilever part beam concrete casting with agent structure
Construction.
4) deformation adjustment layer construction:Bottom board concrete underlayer 24 of encorbelmenting first is poured, and 50mm thickness pea gravel concretens are done on bed course
Bed course, superficial compaction troweling lay blotter 23, subsequently lay base plate waterproofing 11 of encorbelmenting, conserve simultaneously in blinding concrete
Paving SBS coil waterproof layers after drying, waterproof layer plate surrounding Liang Shangyu original ready-made on return to stations water layer overlapping 25cm
To Bars In Poured Concrete Slab bottom;On waterproof layer, 200 thick polystyrene board protecting layer of laying, forms Combined changeable regulating course.
5) predetermined level plate is installed:After the construction of deformation adjustment layer 25 is finished, bed course 26 on concrete are poured, flattened, subsequently lifted
Predetermined level plate 27.Adjustment position, makes anti-float anchor rod 4 through the preformed hole on predetermined level plate;Under cast-in-place exterior wall side dowel
On the outside of cast-in-place exterior wall, reserved steel bar links together with.
6) normal host construction is to top:Inner side of outer wall of encorbelmenting is arranged reserved dowel and is connected with predetermined level plate 27, is encorbelmented
, on predetermined level plate, after reinforcing bar colligation, form for seal, one-piece casting is to top for floor plates formwork erection.
7) encorbelment:Predetermined level plate both sides are connected by reinforcing bar colligation with the body of wall of first molding respectively,
Embedding rubber water-proof bar, arrangement, straightening, the reserved slab of cleaning original construction are filled out between pouring concrete plate and first pouring concrete beam afterwards
Muscle, and colligation, adopt the concrete casting of design load after formwork.