CN203654993U

CN203654993U - Concrete structure cantilever bay window board

Info

Publication number: CN203654993U
Application number: CN201320836575.8U
Authority: CN
Inventors: 韩建成; 高文光; 王晓刚; 索志方
Original assignee: Beijing Urban Construction Sixth Group Co Ltd
Current assignee: Beijing Urban Construction Sixth Group Co Ltd
Priority date: 2013-12-18
Filing date: 2013-12-18
Publication date: 2014-06-18
Anticipated expiration: 2023-12-18

Abstract

The utility model relates to a concrete structure cantilever bay window board which comprises an upper bay window board and a lower bay window board, wherein the upper bay window board is wholly placed and molded with concrete for a window upper connecting beam and an upper floor slab, and the inner end of an upper bay window board steel bar of the upper bay window board extends into the window upper connecting beam to be anchored; the lower bay window board is wholly placed and molded with concrete at the upper part of a window lower connecting beam, and the inner end of a lower bay window board steel bar of the lower bay window board extends into the window lower connecting beam to be anchored. The concrete structure cantilever bay window board has the beneficial effects that through reserving the position of the bay window board in the construction of a concrete wall body, the upper bay window board, the window upper connecting beam and the upper floor slab are simultaneously placed, and the lower bay window board and the upper part of the window lower connecting beam are simultaneously placed; the integrity is better; the cracking at the root of the bay window board and the leakage and the potential safety hazards caused by the cracking are effectively eliminated; the later maintenance and treatment expense of a bay window is reduced; the cantilever bay window board can be widely applied to the construction of non-French bay windows for cast-in-situ concrete shear wall structure residences.

Description

The concrete structure luffer boards that waft of encorbelmenting

Technical field

The utility model relates to a kind of cast-in-situ concrete floating window structure of encorbelmenting.

Background technology

In order to pursue the permeability in building room, form the space that widens the vision, improve the livable quality of Urban House, the window that wafts obtains using more and more widely as a kind of special building design form in residential project.Waft window upper and lower plates as cast-in-situ concrete cantilevered structure, and when conventional construction method generally adopts wall construction, reserved or pre-buried cantilevered plate horizontal reinforcement, after walls concrete has been built, then builds separately overhanging component, as shown in Figure 1.This construction technology exists that embedded bar position is inaccurate, horizontal reinforcement repeatedly bends, constuction joint is vertically retained in buttress portion, constuction joint picks the problems such as cutter is not in place, the bearing capacity and the durability that have reduced to a certain extent cantilevered plate, even form seepage and potential safety hazard.

Utility model content

The utility model provides a kind of concrete structure luffer boards that waft of encorbelmenting, and solve existing floating window structure bearing capacity and poor durability, the technical problem that efficiency of construction is low.

The utility model solves the technical scheme that its technical problem adopts:

This concrete structure luffer boards that waft of encorbelmenting, comprise waft luffer boards and under the luffer boards that waft, the concrete monobloc cast moulding of coupling beam and upper strata floor on waft on described luffer boards and window, the interior anchoring of coupling beam on window is stretched in the luffer boards reinforcing bar the inner of wafing on the luffer boards that above waft;

Waft under the described concrete monobloc cast moulding on coupling beam top under luffer boards and window, under waft luffer boards under the luffer boards reinforcing bar the inner of wafing stretch into anchoring in coupling beam under window.

The luffer boards reinforcing bar that wafts on described is positioned at the luffer boards top of wafing.

The luffer boards top of wafing under the luffer boards reinforcing bar that wafts under described is positioned at.

Feature of the present utility model and beneficial effect are as follows:

1, the utility model by reserving the luffer boards position of wafing in concrete wall work progress, by on waft coupling beam and upper strata floor on luffer boards and window build simultaneously, under the coupling beam top under luffer boards and window of wafing build simultaneously, the vertical constuction joint that changes traditional luffer boards root that wafts is horizontal construction joint, globality is better, has effectively eliminated the luffer boards root cracking that wafts, and the seepage causing thus and potential safety hazard, obtain good mass effect, reduced the expense of the window later period maintenance processing of wafing.

2, the luffer boards reinforcing bar that wafts of the present utility model just carries out colligation after the window formwork erection that wafts, and makes number of steel bars and position accurate, can ensure that cantilevered plate cage of reinforcement size is correct, effectively guarantees that the bearing capacity of cantilevered structure meets design requirement.

3, the coupling beam bed die on luffer boards and window that wafts on of the present utility model is the same system that installs, and the faulting of slab ends wafing between luffer boards and reservation window hole that while having stopped to build due to body of wall, window hole displacement, distortion cause, for later stage decoration construction creates good conditions.

The Social benefit and economic benefit the utlity model has is as follows:

The encorbelment luffer boards monobloc cast construction that wafts of concrete has fundamentally solved the common fault of the luffer boards root cracking of wafing, seepage, the luffer boards reinforcement location that wafts can effectively be ensured, also greatly improved the stress performance of cantilevered plate, make structure safer, for waft luffer boards construction of residential project provides a kind of new construction method, can provide reference to similar engineering construction, there is good promotional value.

The encorbelment luffer boards monobloc cast construction that wafts of concrete has been eliminated the luffer boards crack problem that wafts, can ensure the accuracy of window hole and the luffer boards relative position that wafts simultaneously, reduce in work progress that cutter is reprocessed expense and engineering hands over by rear leakage maintaining expense due to window hole and the luffer boards relative position that wafts picking in a large number of being forbidden to cause, there is good economic benefit.

The utility model can be widely used in the waft window construction of the non-console mode of cast-in-place concrete shear wall structure house.

Brief description of the drawings

Below in conjunction with drawings and Examples, the utility model is further illustrated.

Fig. 1 is traditional floating window structure schematic diagram.

Fig. 2 is the schematic diagram of luffer boards reinforcing bar binding of wafing.

Fig. 3 is the schematic diagram of concreting.

Fig. 4 be pre-buried filler and under the pre-buried drawing of site of luffer boards reinforcing bar that wafts.

Fig. 5 is the installation drawing of luffer boards template of wafing.

Reference numeral: luffer boards waft on 1-, luffer boards reinforcing bar wafts on 1.1-, luffer boards waft under 2-, luffer boards reinforcing bar wafts under 2.1-, coupling beam on 3-window, coupling beam reinforcing bar on 3.1-window, coupling beam under 4-window, coupling beam reinforcing bar under 4.1-window, 5-upper strata floor, 6-lower floor floor, 7-window hole, 8-filler, 9-window hole molding board, 10-support system, 11-constuction joint, 12-body of wall, on 13-window coupling beam and on the luffer boards bed die that wafts, coupling beam side form on 14-window, 15-upper strata floor bottom mould, luffer boards bed die wafts under 16-.

Detailed description of the invention

Embodiment is referring to shown in Fig. 2, Fig. 3, this concrete structure luffer boards that waft of encorbelmenting, comprise waft luffer boards 1 and under the luffer boards 2 that waft, the concrete monobloc cast moulding of the coupling beam 3 and upper strata floor 5 on luffer boards 1 and window of wafing on described, the interior anchoring of coupling beam 3 on window is stretched in luffer boards reinforcing bar 1.1 the inners of wafing on the luffer boards 1 that above waft;

Waft under the described concrete monobloc cast moulding on coupling beam 4 tops under luffer boards 2 and window, under waft luffer boards 2 under luffer boards reinforcing bar 2.1 the inners of wafing stretch into the interior anchoring of coupling beam 4 under window.

The luffer boards reinforcing bar 1.1 that wafts on described is positioned at luffer boards 1 top of wafing.

Luffer boards 2 tops of wafing under the luffer boards reinforcing bar 2.1 that wafts under described is positioned at.

Shown in Fig. 2～5, this construction method of luffer boards concrete monobloc cast structure of wafing of encorbelmenting, construction sequence is as follows:

Step 1, check structural working drawing and architectural working drawing, determine size and the position of the luffer boards that waft, carry out plane unwrapping wire and absolute altitude is copied survey according to the luffer boards position of wafing of design drawing mark, machine by design drawing waft luffer boards reinforcing bar 1.1 and under the luffer boards reinforcing bar 2.1(that wafts only process 90 ° of ends crotch);

Step 2, after wall steel bar colligation completes, carries out hidden examination;

Step 3, at the window hole 7 pre-buried fillers 8 in hitch position, both sides, top, and with window on 3.1 colligations of coupling beam reinforcing bar firm, this filler can be the square block of wrapping up in adhesive tape outward and make 300mm × thickness of wall body × (on window coupling beam high-floor thickness of slab) with polyphenyl; The pre-buried filler 8 of coupling beam 4 upper position under window, and with window under 4.1 colligations of coupling beam reinforcing bar firm, this packing size under being, waft luffer boards length × thickness of wall body × under the luffer boards thickness of slab that wafts;

Under window after pre-buried the completing of filler 8 on coupling beam 4 tops, will under luffer boards reinforcing bar 2.1 the inners of wafing be embedded in advance under window in coupling beam 4, under waft luffer boards reinforcing bar 2.1 under the part of wafing in luffer boards 2 temporarily vertically stretch into window hole molding board 9 inboards, in the time of step 8, then carry out in-site measurement location and will under the luffer boards reinforcing bar 2.1 that wafts bend 90 and spend to level;

Step 4, window hole molding board 9 is installed, and when window hole molding board 9 is installed, window hole molding board adopts wooden model or punching block to be made into gate-type shape, window hole molding board bottom is on-the-spot installs the lumps of wood or steel pipe is shored as bottom, and fixes luffer boards reinforcing bar 2.1 positions of wafing under pre-buried simultaneously;

Step 5, installs wall form, builds walls concrete;

Step 6, after wall form is removed, filler 8 is cleaned out, and under reserved hitch and window, coupling beam upper position carries out treatment of construction joints; When treatment of construction joints, according to coupling beam tip position snap the line on body of wall under reserved hitch and window, adopt machine for working stone cutting 8～10mm degree of depth along the line, then carry out constuction joint and pick cutter;

Step 7, the luffer boards template of wafing is installed, coupling beam 3 and upper strata floor 5 formwork simultaneously on above waft luffer boards 1 and window, support system 10 is linked to be entirety; On window at the bottom of coupling beam with on the absolute altitude that wafts at the bottom of luffer boards identical, on window coupling beam and on the luffer boards bed die 13 that wafts adopt same template, guarantee that absolute altitude is consistent, there is not faulting of slab ends;

Step 8, waft luffer boards reinforcement installation and examination;

Step 9, concreting, on above waft luffer boards 1 and window, the concrete monobloc cast moulding of coupling beam 3 and upper strata floor 5, first builds the luffer boards 1 that waft, then builds coupling beam 3 on window, finally builds upper strata floor 5; Under the waft concrete monobloc cast moulding on coupling beam 4 tops under luffer boards 2 and window;

Step 10, concrete curing, the luffer boards concrete curing mode of wafing is identical with floorslab concrete maintenance method, adopts covered with plastic film, water seasoning under normal temperature, and curing time is no less than 14d;

Step 11, form removal, the luffer boards bed die that wafts is removed and should be met concrete crushing strength and reach more than 100% (by concrete with the judgement of condition test specimen cubic compressive strength).

Claims

1. the concrete structure luffer boards that waft of encorbelmenting, comprise the luffer boards that waft (1) and under the luffer boards (2) that waft, it is characterized in that:

The concrete monobloc cast moulding of the coupling beam (3) and upper strata floor (5) on luffer boards (1) and window of wafing on described, the interior anchoring of coupling beam on window (3) is stretched in luffer boards reinforcing bar (1.1) the inner of wafing on the luffer boards (1) that above waft;

Waft under the described concrete monobloc cast moulding on coupling beam (4) top under luffer boards (2) and window, under waft luffer boards (2) under luffer boards reinforcing bar (2.1) the inner of wafing stretch into the interior anchoring of coupling beam under window (4).

2. the concrete structure according to claim 1 luffer boards that waft of encorbelmenting, is characterized in that: the luffer boards reinforcing bar (1.1) that wafts on described is positioned at the luffer boards that waft (1) top.

3. the concrete structure according to claim 1 luffer boards that waft of encorbelmenting, is characterized in that: luffer boards (2) top of wafing under the luffer boards reinforcing bar (2.1) that wafts under described is positioned at.