CN105064543A - Formwork-free constructional column and construction method - Google Patents
Formwork-free constructional column and construction method Download PDFInfo
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- CN105064543A CN105064543A CN201510570071.XA CN201510570071A CN105064543A CN 105064543 A CN105064543 A CN 105064543A CN 201510570071 A CN201510570071 A CN 201510570071A CN 105064543 A CN105064543 A CN 105064543A
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Abstract
The invention discloses a formwork-free constructional column and a construction method. The constructional column is arranged between two adjacent walls. The side faces of the two adjacent walls are connected through formwork building blocks. The formwork building blocks are laid layer by layer in the height direction of the constructional column. A steel reinforcement cage is arranged inside a columnar cavity defined by the formwork building blocks and the walls. The steel reinforcement cage and the walls are fixed through tying of tying pieces. Concrete is poured into the columnar cavity. The formwork building blocks and building blocks on the two walls are constructed at the same time. Combed joints need to be reserved when the first formwork building blocks are laid, the combined joints are retreated and enter successively, and the height of the combined joints is the height of the wall building blocks. Cleaning holes are reserved in one sides of the first formwork building blocks, and second and other formwork building blocks are laid according to the common construction method. The formwork building blocks are used for replacing a traditional formwork, and the working procedures of formwork erecting and disassembling are omitted; the formwork building blocks and the concrete of the constructional column can be firmly combined into a whole to bear stress jointly.
Description
Technical field
The present invention relates to building construction technology, particularly relate to Constructional Col-umn Construction technology.
Background technology
Along with the deep enforcement of national energy-saving policy, in building, the consumption of various building block is very large, has to save to plough, lightweight, good heat insulating, easy construction, build the advantages such as work efficiency is high, integration engineering cost is low by laying bricks or stones, is widely applied just gradually.In masonry shearwalls, arrange constructional column is improve wall integrity, strengthens the major measure of body of wall anti-seismic performance, has obtained and generally applied.
The traditional construction method of constructional column need install template, there is construction trouble, easily runs the problem such as mould, spillage, in order to prevent and treat spillage, needing sticking two-faced adhesive tape, adding working procedure; Some engineering adopts building-block in the position of constructional column, build stem stem to replace constructional column, but stem stem can only insert vertical reinforcement, can not arrange stirrup, the shear resistance of constructional column is reduced a lot of than traditional constructional column.
Summary of the invention
Technical problem to be solved by this invention is just to provide one and exempts from formwork constructional column and construction method, facilitates the construction of constructional column, and can ensure the intensity of constructional column.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: exempt from formwork constructional column, this constructional column is located between adjacent two bodies of wall, connected by template building block between each side of adjacent two bodies of wall, described template building block is built by laying bricks or stones along the layering of constructional column short transverse, reinforcing cage is provided with in the cylindrical cavity that template building block and body of wall surround, fixed by tension member drawknot between reinforcing cage and body of wall, concreting in described cylindrical cavity, and is built into a single integrated structure with reinforcing cage, template building block and body of wall.
Preferably, described template building block comprises the building block of plane wall form and the building block of corner wall form, plane body of wall constructional column both sides are located in the building block of described plane wall form, corner wall structure post both sides are located in the building block of described corner wall form, the building block of described plane wall form is tabular, and the building block of described corner wall form is L-type structure.
Preferably, the end face of described body of wall is provided with the tongue-and-groove structure coordinated with template building block.
Preferably, described tension member adopts the steel tie of Φ 6.5mm or the connector of L shape, and described tension member is arranged along wall height interval 500 ~ 600mm, and the length that steel tie level is goed deep in body of wall is greater than or equal to 1m.
Preferably, described template building block splits short fiber by resistance, cement, fine active mineral admixture, cement-base infiltration crystallization, concrete composite synergist, accelerating admixture, water reducing agent, river sand, rubble, water mixes and build and form.
Present invention also offers the above-mentioned construction method exempting from formwork constructional column, comprise the steps:
Step one, by straight for constructional column joint bar process pre-buried in constructional column upper and lower sides floor, and colligation constructional column reinforcing cage, reinforcing cage be embedded in the joint bar in upper and lower sides floor and the tension member be embedded in body of wall is fixed;
Step 2, build template building block by laying bricks or stones, template building block and both sides walling unit are constructed simultaneously, 60mm horse tooth trough position to be reserved building the first skin template building block by laying bricks or stones, horse tooth trough first step back into, horse tooth trough height is the height of walling unit, and the side of wherein the first skin template building block reserves clean-out hatch, the second skin with cope match-plate pattern building block routinely construction method build by laying bricks or stones;
Step 3, concreting, before building, removes foreign material from clean-out hatch, then uses the dull and stereotyped shutoff clean-out hatch of pea gravel concreten.
Preferably, between the building block of template building block levels, arrange split bolt, this split bolt fixes the building block of levels template simultaneously.
Preferably, for plane body of wall constructional column, along each vertical setting in plane wall form building block centre position, both sides one flitch, be strained and fixed by split bolt between the flitch of both sides.Wherein split bolt is arranged on larger L-type building block place of width, and every alternating floor is arranged together.
Preferably, for corner wall structure post, corner wall form building block corner inside corner is vertically provided with one flitch, each vertical setting in corner wall form building block corner both sides one flitch outside corner, is strained and fixed between the flitch outside in corner by split bolt.
Preferably, in step 3, first build the cement mortar that 50mm is thick, then concreting.
The building block of the present invention's template replaces traditional template, first colligation constructional column reinforcing cage during construction, template building block is built by laying bricks or stones with body of wall, and the building block of concreting rear pattern plate and concrete are combined together to form a constructional column entirety, without form removal, eliminate formwork and form removal operation; And template building block can and constructional column concrete combine securely, formed overall, jointly stressed, energy guaranteed strength, also safer.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the invention will be further described:
Fig. 1 exempts from formwork pillar structure schematic diagram in the embodiment of the present invention 1;
Fig. 2 is body of wall and plane wall form building block syndeton schematic diagram in the embodiment of the present invention 1;
Fig. 3 is the first skin block structure schematic diagram in the embodiment of the present invention 1;
Fig. 4 is the second skin block structure schematic diagram in the embodiment of the present invention 1;
Fig. 5 is the 3rd skin block structure schematic diagram in the embodiment of the present invention 1;
Fig. 6 exempts from formwork constructional column upper (lower) layer cross-sectional configuration schematic diagram one in the embodiment of the present invention 1;
Fig. 7 exempts from formwork constructional column upper (lower) layer cross-sectional configuration schematic diagram two in the embodiment of the present invention 1;
Fig. 8 is that in the embodiment of the present invention 1, split bolt arranges plan view;
Fig. 9 is that in the embodiment of the present invention 1, split bolt arranges elevation;
Figure 10 exempts from formwork pillar structure schematic diagram in the embodiment of the present invention 2;
Figure 11 is body of wall and corner wall form building block syndeton schematic diagram in the embodiment of the present invention 2;
Figure 12 is the first skin block structure schematic diagram in the embodiment of the present invention 2;
Figure 13 is the second skin block structure schematic diagram in the embodiment of the present invention 2;
Figure 14 is the 3rd skin block structure schematic diagram in the embodiment of the present invention 2;
Figure 15 exempts from formwork constructional column upper (lower) layer cross-sectional configuration schematic diagram one in the embodiment of the present invention 2;
Figure 16 exempts from formwork constructional column upper (lower) layer cross-sectional configuration schematic diagram two in the embodiment of the present invention 2;
Figure 17 is that in the embodiment of the present invention 2, split bolt arranges plan view;
Figure 18 is that in the embodiment of the present invention 2, split bolt arranges elevation.
Detailed description of the invention
As shown in Fig. 1 to Figure 18, formwork constructional column of exempting from of the present invention is located between adjacent two bodies of wall, connected by template building block between each side of adjacent two bodies of wall, body of wall is built by laying bricks or stones by walling unit and is formed, template building block layering together with walling unit is built by laying bricks or stones, wherein template building block comprises the building block of plane wall form and the building block of corner wall form, the building block of plane wall form is used for the constructional column between two adjacent plane bodies of wall, the building block of corner wall form is used for the constructional column between two adjacent corner bodies of wall, template building block is built by laying bricks or stones along the layering of constructional column short transverse, reinforcing cage is provided with in the cylindrical cavity that template building block and body of wall surround, fixed by tension member drawknot between reinforcing cage and body of wall, joint bar is embedded with in constructional column upper and lower sides floor, concreting is in described cylindrical cavity, and and reinforcing cage, joint bar, tension member, template building block and body of wall are built into a single integrated structure.
Below in conjunction with specific embodiment the present invention made and illustrating.
The embodiment of the present invention 1, relate to the constructional column between two adjacent plane bodies of wall, as shown in Figures 1 to 9, this constructional column is located between adjacent two plane bodies of wall, connected by plane wall form building block 2 between each opposite flank of adjacent two plane bodies of wall, plane wall form building block 2 is tabular, and body of wall 1 is provided with walling unit 11 end face of constructional column joint the tongue-and-groove structure 111 coordinated with plane wall form building block 2.
Reinforcing cage 4 is provided with in the cylindrical cavity that plane wall form building block 2 and body of wall 1 surround, fixed by tension member drawknot between reinforcing cage 4 and body of wall 1, concreting in described cylindrical cavity, and is built into a single integrated structure with reinforcing cage 4, template building block and body of wall 1.
Tension member wherein adopts the steel tie of Φ 6.5mm or the connector of L shape, and tension member is arranged along wall height interval 500 ~ 600mm, and the length that steel tie level is goed deep in body of wall is greater than or equal to 1m.
Owing to replacing constructional column template with template building block, the clean thickness of constructional column can reduce to some extent, and because this constructional column is mainly in order to improve the anti-seismic performance of body of wall, bear horizontal loading, in principle in order to not affect the effect of constructional column, according to constructional column section area equal principle, correspondingly need to increase the width of constructional column, its shear-carrying capacity of guarantee and formerly design equivalence.Therefore in order to avoid template building block on the impact of constructional column performance as far as possible, template building block is as far as possible thin, but will ensure its cracking resistance simultaneously, with concrete binding ability and comprehensive intensity.Therefore the present invention makes the formula of template building block and optimizing and revising.
Specifically, template building block splits short fiber by resistance, cement, fine active mineral admixture, cement-base infiltration crystallization, concrete composite synergist, accelerating admixture, water reducing agent, river sand, rubble, water mix and builds and form, and every cubic metre of template building block is made up of the raw material of following mass parts:
2 ~ 4 parts, short fiber, cement 365 ~ 410 parts, fine active mineral admixture 73 ~ 82 parts, cement-base infiltration crystallization 3 ~ 5 parts, concrete composite synergist 4 ~ 5 parts, accelerating admixture 13 ~ 19 parts, water reducing agent 4 ~ 5 parts, 900 ~ 925 parts, river sand, rubble 785 ~ 815 parts, 170 ~ 185 parts, water are split in resistance.
Resistance is split short fiber and is adopted propylene resistance to split short fiber, and to improve its cracking resistance, prevent concrete from watering in the process of smashing and ftracture, propylene resistance is split short fiber and adopted tree-shaped monofilament.
Fine active mineral admixture is made up of the raw material of following mass parts: 36 ~ 41 parts, flyash, slag micropowder 18 ~ 20 parts, metakaolin 19 ~ 21 parts.Aquation calcium oxide generation chemical reaction in flyash, slag micropowder and cement, generates the compound with hydraulic gelling property, reduces concrete porosity, improve concrete homogeneity and compactness, enhance concrete structural strength.Thin metakaolin can reduce Chloride Diffusion Coefficient in Concrete, improves Concrete Resist Reinforcing Sulfate Corrosion ability, stops the possibility of concrete generation alkali-aggregate reaction, improves concrete durability.
Cement-base infiltration crystallization is the cement-base infiltration crystallization pulverulent material adapting to concrete structure.Its distinctive active chemistry infiltrates inside concrete with water, the concrete heat evolution velocity of catalysis, generates hydrated calcium silicate gel body and insoluble crystalline solid.Concrete composite synergist is CTF composite synergist, and described accelerating admixture is 711 type accelerating admixtures, and described water reducing agent is poly carboxylic acid series water reducer.Mix CTF composite synergist, hydrone is fully contacted with cement granules, strengthen the indissoluble cement granules in aquation concrete, reduce concrete pore and Zang Shui thereof, reduce the possibility of concrete freeze thawing expansion damage under cryogenic; Meanwhile, because the effective cement granules in unit volume increases to some extent, thus improve the ability of its anti-carbonization.Mix 711 type accelerating admixtures, impel concrete rapid hardening hard soon, improve early strength, strengthen the compliance in wet environment.Mix poly carboxylic acid series water reducer, under the condition keeping concrete flowability, water/binder ratio can be reduced significantly.
Further, the fineness modulus of described river sand is greater than 2.5, and in the sand of river, particle diameter is greater than 5mm and the river sand summation that is less than 0.075mm is no more than 20% of river sand gross mass; Described ballast grain sizes is at 5mm ~ 15mm.
Therefore, the pea gravel concreten template building block of above-mentioned formula not only self cracking resistance, intensity and other better performances, and the most important thing is its can and constructional column concrete combine securely, form entirety, jointly stressed.
Exempt from formwork Constructional Col-umn Construction method, comprise the steps:
Step one, by straight for constructional column joint bar process pre-buried in constructional column upper and lower sides floor, and colligation constructional column reinforcing cage, reinforcing cage be embedded in the joint bar in upper and lower sides floor and the tension member be embedded in body of wall is fixed;
Step 2, build template building block by laying bricks or stones, as shown in Figures 3 to 5, template building block and both sides walling unit are constructed simultaneously, 60mm horse tooth trough position to be reserved building the first skin template building block by laying bricks or stones, horse tooth trough first step back into, horse tooth trough height is the height of walling unit, wherein the side of the first skin template building block reserves clean-out hatch, the second skin with cope match-plate pattern building block routinely construction method build by laying bricks or stones;
Step 3, concreting, before building, removes foreign material from clean-out hatch, then uses the dull and stereotyped shutoff clean-out hatch of pea gravel concreten.
In step 3, first build the cement mortar that 50mm is thick, then concreting.Rotten of constructional column can be avoided.Flitch and split bolt is removed after maintenance.
As shown in Figure 6 and Figure 7, plane wall form building block 2 width of upper and lower two adjacent layers is different, and the face wall form building block 2 of two kinds of different in width is crisscross arranged along short transverse layering.
As shown in Figure 8 and Figure 9, between the building block of plane wall form building block 2 levels, arrange split bolt 5, this split bolt 5 fixes levels plane wall form building block 2 simultaneously.Split bolt 5 magnitude setting can be saved, ensure the good fixing of plane wall form building block 2 simultaneously.
Further, for plane body of wall constructional column, along each vertical setting in plane wall form building block 2 centre position, both sides one flitch, can be strained and fixed by split bolt between the flitch of both sides, after adding flitch, more firm to fixing of plane wall form building block 2.
The embodiment of the present invention 2, relate to the constructional column between two adjacent corner bodies of wall, as shown in Figure 10 to Figure 18, be that the structure of template building block is different from the different of embodiment 1, template building block adopts corner wall form building block 3, corner wall structure post both sides are located in corner wall form building block 3, and corner wall form builds 3 pieces for L-type structure.
Except above-mentioned difference, the constructional column between corner body of wall, also has following different.
As shown in Figure 12 to Figure 14, clean-out hatch will be reserved equally outside first skin corner wall form building block corner, but the corner wall form building block at this place is made up of two pieces of tabular building blocks, it is not one piece of complete L-type building block, and corner wall form building block 3 width of neighbouring layer is different outside corner, corner wall form building block 3 inside corner is that one deck is arranged, and adjacent layer is not arranged, with formed with neighboring walls building block 11 good fit (because corner outside corner wall form building block 3 and adjacent layer walling unit 11 between formed width end interlock structure, note: outside first floor, corner establishes two pieces of template building blocks, to stay clean-out hatch, support the corner formwork building block of the second layer).
As shown in FIG. 15 to 18, for corner wall structure post, corner wall form building block corner inside corner is vertically provided with one flitch 6, the each vertical setting in corner wall form building block corner both sides one flitch 6 outside corner, is strained and fixed by split bolt 5 between the flitch outside in corner.So every alternating floor arranges one split bolt, because corner wall form building block 3 rigidity is comparatively large, not yielding, so arranges the stability that can ensure building block.
After adopting the embodiment of technique scheme to carry out enforcement work, stop Constructional Col-umn Construction and run mould, spillage problem.Current building block binding material is generally supporting adhesive special, and because mortar joint is little, smooth by the surface of wall of the method construction, surface of wall, can directly Puttying without the need to plastering, and effectively reduces the latency of rendering layer cracking, saving plastering material.And template building block makes simple, transport, stacking are conveniently, not fragile.
In addition, masonry shearwalls is widely used in construction work, and wall structure post consumption is very big, instant invention overcomes the defect of traditional Constructional Col-umn Construction, can produce good economic benefit and social benefit.
Claims (10)
1. exempt from formwork constructional column, this constructional column is located between adjacent two bodies of wall, it is characterized in that: connected by template building block between each side of adjacent two bodies of wall, described template building block is built by laying bricks or stones along the layering of constructional column short transverse, reinforcing cage is provided with in the cylindrical cavity that template building block and body of wall surround, fixed by tension member drawknot between reinforcing cage and body of wall, concreting in described cylindrical cavity, and is built into a single integrated structure with reinforcing cage, template building block and body of wall.
2. according to claim 1ly exempt from formwork constructional column, it is characterized in that: described template building block comprises the building block of plane wall form and the building block of corner wall form, plane body of wall constructional column both sides are located in the building block of described plane wall form, corner wall structure post both sides are located in the building block of described corner wall form, the building block of described plane wall form is tabular, and the building block of described corner wall form is L-type structure.
3. according to claim 2ly exempt from formwork constructional column, it is characterized in that: the end face of described body of wall is provided with the tongue-and-groove structure coordinated with template building block.
4. according to claim 1ly exempt from formwork constructional column, it is characterized in that: described tension member adopts the steel tie of Φ 6.5mm or the connector of L shape, described tension member is arranged along wall height interval 500 ~ 600mm, and the length that steel tie level is goed deep in body of wall is greater than or equal to 1m.
5. according to claim 1ly exempt from formwork constructional column, it is characterized in that: described template building block splits short fiber by resistance, cement, fine active mineral admixture, cement-base infiltration crystallization, concrete composite synergist, accelerating admixture, water reducing agent, river sand, rubble, water mix to build and forms.
6. exempt from formwork Constructional Col-umn Construction method, it is characterized in that comprising the steps:
Step one, by straight for constructional column joint bar process pre-buried in constructional column upper and lower sides floor, and colligation constructional column reinforcing cage, reinforcing cage be embedded in the joint bar in upper and lower sides floor and the tension member be embedded in body of wall is fixed;
Step 2, build template building block by laying bricks or stones, template building block and both sides walling unit are constructed simultaneously, build the first skin template building block by laying bricks or stones and will reserve 60mm horse tooth trough position, horse tooth trough first step back into, horse tooth trough height is the height of walling unit, and the side of wherein the first skin template building block reserves clean-out hatch, the second skin with cope match-plate pattern building block routinely construction method build by laying bricks or stones;
Step 3, concreting, before building, removes foreign material from clean-out hatch, then uses the dull and stereotyped shutoff clean-out hatch of pea gravel concreten.
7. according to claim 6ly exempt from formwork Constructional Col-umn Construction method, it is characterized in that: between the building block of template building block levels, arrange split bolt, this split bolt fixes the building block of levels template simultaneously.
8. according to claim 6ly exempt from formwork Constructional Col-umn Construction method, it is characterized in that: for plane body of wall constructional column, along each vertical setting in plane wall form building block centre position, both sides one flitch, be strained and fixed by split bolt between the flitch of both sides.
9. according to claim 6ly exempt from formwork Constructional Col-umn Construction method, it is characterized in that: for corner wall structure post, corner wall form building block corner inside corner is vertically provided with one flitch, the each vertical setting in corner wall form building block corner both sides one flitch outside corner, is strained and fixed by split bolt between the flitch outside in corner.
10. according to claim 6ly exempt from formwork Constructional Col-umn Construction method, it is characterized in that: in step 3, first build the cement mortar that 50mm is thick, then concreting.
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Application publication date: 20151118 |