CN105386447A - Construction method for replacement support of post-cast strip in construction site - Google Patents
Construction method for replacement support of post-cast strip in construction site Download PDFInfo
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- CN105386447A CN105386447A CN201510560542.9A CN201510560542A CN105386447A CN 105386447 A CN105386447 A CN 105386447A CN 201510560542 A CN201510560542 A CN 201510560542A CN 105386447 A CN105386447 A CN 105386447A
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Abstract
The invention relates to a construction method for a replacement support of a post-cast strip in a construction site, and belongs to the technical field of buildings. The problems that existing structural steel replacement support needs to be lifted, welded and positioned, so that the construction period is long, the construction difficulty is large, the construction cost is high, and the peripheral environment is polluted are solved. The construction method for the replacement support of the post-cast strip in the construction site comprises the steps that firstly, a mold plate bent frame of basement structural floors is erected on the construction site; secondly, steel bars are laid on the replacement support position of the planned construction post-cast strip, and therefore the two ends of the steel bars are anchored into the basement structural floors on the two sides respectively; rapid and easy closing nets are arranged on the two sides of the replacement support position of the planed construction post-cast strip; and finally, concrete is synchronously casted to form a concrete post-cast strip replacement support and a basement structure.
Description
Technical field
The present invention relates to technical field of building construction, particularly the construction method of ater-casting, a kind of job site support replacement.
Background technology
In Deep foundation Pit excavation, when vibrational power flow ater-casting, should arrange reliable Force transmission parts at ater-casting place, crack leaks to cause basement structure to occur generation malformation if deal with improperly, seriously can affect structure and normally use the construction safety even jeopardizing deep foundation ditch.Current job site mainly adopts shaped steel as ater-casting support replacement.
Shaped steel support replacement form is adopted to have following shortcoming:
First, shaped steel support replacement transports on-site hoisting to after generally wanting prefabrication, scene utilizes tower crane that shaped steel support replacement is hung in foundation ditch, but the region that scene often has tower crane radius to cover, now can only lean on a dead lift, a root type bracing members weight, at 80kg-150kg, needs 2-3 workmans to carry on the template framed bent being paved with reinforcing bar, electric welder is also needed to position embedded part after in place, very inconvenient for site operation.
The second, compared with concrete, price of steel product is more expensive, and type steel support part is anchored in floor, and assembling reinforcement around, cut off difficulty greatly, the rate of recovery is not high, thus consider that shaped steel support replacement recycles value low, generally do not cut off, and shaped steel support replacement construction cost is larger.
3rd, need tower crane to transport during shaped steel support replacement location, workers carry and electric welder location, these operations add the hidden danger of construction, and environmental pollution is larger.
The information being disclosed in this background technology part is only intended to increase the understanding to general background of the present invention, and should not be considered as admitting or imply in any form that this information is the known prior aries of persons skilled in the art.
Summary of the invention
The object of the present invention is to provide the construction method of ater-casting, a kind of job site support replacement, adopt concrete as ater-casting support replacement material, fast-easy closing-up net enclosing is adopted to re-lay reinforcing bar at the side of support changing structure for use, make ater-casting support replacement and jointly build with layer basement structure, difficulty of construction reduces, reduce spillage of material, environmental protection.
For solving the problems of the technologies described above, technical scheme of the present invention is as follows:
A construction method for ater-casting, job site support replacement, described ater-casting support replacement is used for basement structure construction, comprises the steps:
Step one, set up the template framed bent of described basement structure floor at the construction field (site);
Step 2, plan to build support replacement position, ater-casting lay reinforcing bar, make the two ends of described reinforcing bar anchor in the described basement structure floor of both sides respectively;
Step 3, fast-easy closing-up net is set in described both sides of planning to build ater-casting support replacement; And
Step 4, concrete synchronous are built and are formed late poured band support replacement and described basement structure.
Further, the template framed bent in described step one is for landing template framed bent or overhanging type steel framed bent.
Further, described reinforcing bar anchors into 30-40 times that the degree of depth in described basement structure floor is bar diameter.
Further, also comprise step 5, certain hour after whole described basement structure binds, sets up template framed bent, completes the pouring construction of ater-casting.
Further, described certain hour is 50-60 days.
Further, in the structural beams that in described step 2, the two ends of reinforcing bar anchor into basement structure floor or plate.
Compared with prior art, the technique effect that the present invention is useful is: the construction method of ater-casting, job site provided by the invention support replacement, sets up the template framed bent of described basement structure floor first at the construction field (site); Secondly planning to build support replacement position, ater-casting laying reinforcing bar, the two ends of reinforcing bar are made to anchor in the basement structure floor of both sides respectively; Then fast-easy closing-up net is set in the both sides of planning to build ater-casting support replacement; Last concrete synchronous is built and is formed late poured band support replacement and basement structure.Compared with shaped steel support replacement, adopt concrete support replacement, not only reduce the transport of material, processing cost and site operation cost, the Costco Wholesale of concrete material lower than the price of shaped steel, concrete material convenient transportation, site operation is convenient, and late poured band support replacement is built jointly with this layer concrete structure, decrease carrying and the manpower and materials of welding, without the need to processing and transport separately outside the venue, simplify construction technology, shorten construction period.In addition, late poured band support replacement and this layer concrete structure one-time-concreting shaping, when carrying out post empiricism after building overall structure binds, without the need to dismantling concrete ater-casting support replacement, environmental protection.Therefore, the invention provides a kind of reasonably ater-casting support replacement mode, under the prerequisite meeting support replacement safety, control
Cost, reduces difficulty of construction, and reduces spillage of material, have good promotional value.
Accompanying drawing explanation
Fig. 1 is the structural representation of the ater-casting support replacement of one embodiment of the invention.
Main Reference Numerals illustrates:
1-reinforcing bar; 2-basement structure; 3-late poured band support replacement.
Detailed description of the invention
Be described in further detail below in conjunction with the construction method of the drawings and specific embodiments to ater-casting, the job site support replacement that the present invention proposes.According to the following describes and claims, advantages and features of the invention will be clearer.It should be noted that, accompanying drawing all adopts the form that simplifies very much and all uses non-ratio accurately, only in order to object that is convenient, the aid illustration embodiment of the present invention lucidly.For sake of convenience, hereinafter described " on ", D score is consistent with the upper and lower direction of accompanying drawing, but this can not become the restriction of technical solution of the present invention.
The invention provides the construction method of ater-casting, job site support replacement, for solving, existing shaped steel support replacement difficulty of construction is large, the cycle is long, cost is high, the problem of contaminated environment.
The construction method of ater-casting, job site of the present invention support replacement is described in detail below in conjunction with Fig. 1.
Embodiment one
As shown in Figure 1, the construction method of ater-casting, a kind of job site support replacement, ater-casting support replacement is used for basement structure construction, comprises the steps:
S001: the template framed bent setting up basement structure floor at the construction field (site);
S002: planning to build support replacement position, ater-casting laying reinforcing bar 1, make the two ends of reinforcing bar 1 anchor in the basement structure floor 2 of both sides respectively;
S003: fast-easy closing-up net is set in the both sides of planning to build ater-casting support replacement;
S004: concrete synchronous is built and formed late poured band support replacement 3 and basement structure.
Specifically, the present invention adopts concrete as the material of ater-casting support replacement, first template framed bent is set up, planning to build concrete support replacement position, ater-casting laying reinforcing bar 1, and substituting with fast-easy closing-up net concrete side to plan to build side from late poured band support replacement to template enclosing, the floor of last concrete support replacement and basement structure is synchronously built, and one-time-concreting is shaping, thus without the need to cutting off the late poured band support replacement of rear concrete for making, environmental protection during construction in later period ater-casting.Compared with shaped steel support replacement, adopt concrete support replacement, decrease the transport of material, processing cost and site operation cost; The Costco Wholesale of concrete material is lower than the price of shaped steel, and concrete material convenient transportation, site operation is convenient.And late poured band support replacement is built jointly with this layer concrete structure, compared with shaped steel support replacement, decrease carrying and the manpower and materials of welding, without the need to processing and transport separately outside the venue, simplify construction technology, shorten construction period.
Especially, the template framed bent in step S001 for landing template framed bent or overhanging type steel framed bent, its intensity and highly meet basement structure construction.
Certainly, according to diameter and the quantity of late poured band support replacement axle power determination concrete support replacement section area and arrangement of reinforcement (i.e. reinforcing bar 1), the degree of depth that reinforcing bar 1 anchors into both sides basement structure meets the requirement of structure design to reinforcing bar antidetonation anchorage length.Preferably, reinforcing bar 1 anchors into 30-40 times that the degree of depth in basement structure floor 2 is bar diameter.Such as, the anchorage length of reinforcing bar 1 is 35d, d is bar diameter.The diameter d of reinforcing bar is generally 12mm.
Further, whole basement structure needs to build ater-casting after binding.That is, late poured band support replacement also comprises S005 after having built: the certain hour after whole basement structure binds, and sets up template framed bent, completes the pouring construction of ater-casting.Certainly, according to job specfication, aforementioned certain hour is 50-60 days.In addition, without the need to dismantling concrete ater-casting support replacement before pouring construction ater-casting, and only need the rubbish removing late poured band support replacement place, then concreting forms ater-casting.
Specifically, the particular location of the basement structure floor that the reinforcing bar 1 for making late poured band support replacement anchors into is structural beams or the plate of basement structure floor, makes late poured band support replacement and underground
Cell structure beam slab is built and is integrated, thus ensures stability under loading, plays a supporting role.
In sum, the construction method of ater-casting, job site of the present invention support replacement, late poured band support replacement is adopted to replace shaped steel support replacement, and use fast-easy closing-up net to replace the side template of late poured band support replacement, in the beam simultaneously making the reinforcing bar of late poured band support replacement anchor into basement structure or plate, then late poured band support replacement and same layer basement structure are synchronously built.Compared with shaped steel support replacement, adopt late poured band support replacement, there is some advantage following: transport, the processing cost being the reduction of material; Two is price advantages of concrete material itself, and it is cheaper that concrete material compares steel price; Three is that support replacement concrete uses material identical with structure, is convenient to site operation; Four is that shaped steel support replacement needs lifting, welding, location, add construction hidden danger, and late poured band support replacement and this layer concrete structure are built jointly, decrease carrying and the manpower and materials of welding, without the need to processing and transport separately outside the venue, simplify construction technology, shorten construction period, decrease potential safety hazard; Five is that late poured band support replacement and this layer concrete structure one-time-concreting are shaping, when carrying out post empiricism after building overall structure binds, without the need to dismantling concrete ater-casting support replacement, and environmental protection.
Foregoing description is only the description to present pre-ferred embodiments, any restriction not to the scope of the invention, and any change that the those of ordinary skill in field of the present invention does according to above-mentioned disclosure, modification, all belong to the protection domain of claims.
Claims (6)
1. a construction method for ater-casting, job site support replacement, described ater-casting support replacement is used for basement structure construction, it is characterized in that, comprises the steps:
Step one, set up the template framed bent of described basement structure floor at the construction field (site);
Step 2, plan to build support replacement position, ater-casting lay reinforcing bar, make the two ends of described reinforcing bar anchor in the described basement structure floor of both sides respectively;
Step 3, fast-easy closing-up net is set in described both sides of planning to build ater-casting support replacement; And
Step 4, concrete synchronous are built and are formed late poured band support replacement and described basement structure.
2. the construction method of ater-casting, job site as claimed in claim 1 support replacement, it is characterized in that, the template framed bent in described step one is for landing template framed bent or overhanging type steel framed bent.
3. the construction method of ater-casting, job site as claimed in claim 2 support replacement, is characterized in that, the described reinforcing bar degree of depth anchored in described basement structure floor is 30-40 times of bar diameter.
4. the construction method of ater-casting, job site as claimed in claim 1 support replacement, it is characterized in that, also comprise step 5, certain hour after whole described basement structure binds, sets up template framed bent, completes the pouring construction of ater-casting.
5. the construction method of ater-casting, job site as claimed in claim 4 support replacement, it is characterized in that, described certain hour is 50-60 days.
6. the construction method of ater-casting, job site as claimed in claim 1 support replacement, is characterized in that, in the structural beams that in described step 2, the two ends of reinforcing bar anchor into basement structure floor or plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510560542.9A CN105386447A (en) | 2015-09-06 | 2015-09-06 | Construction method for replacement support of post-cast strip in construction site |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510560542.9A CN105386447A (en) | 2015-09-06 | 2015-09-06 | Construction method for replacement support of post-cast strip in construction site |
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| CN105386447A true CN105386447A (en) | 2016-03-09 |
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| CN201510560542.9A Pending CN105386447A (en) | 2015-09-06 | 2015-09-06 | Construction method for replacement support of post-cast strip in construction site |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499199A (en) * | 2016-12-14 | 2017-03-15 | 上海建工二建集团有限公司 | Close on the interim support replacement of subway ultra-deep foundation pit mid-board and its construction method |
| CN108166531A (en) * | 2017-12-26 | 2018-06-15 | 中国建筑第七工程局有限公司 | Basic alter-pouring strips mould plate and the construction method for pouring post-cast strip |
| CN110130355A (en) * | 2018-02-08 | 2019-08-16 | 中国二十冶集团有限公司 | Base plate of foundation pit post-cast strip force transferring structure and its construction method |
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| JP2005171488A (en) * | 2003-12-08 | 2005-06-30 | Sumitomo Metal Ind Ltd | Connection structure between steel wall and reinforced concrete plate |
| CN102587420A (en) * | 2012-02-13 | 2012-07-18 | 中天建设集团有限公司 | Supporter exchanging method for stage construction basement using cast-in-situ bored piles as separation palisade |
| CN103741716A (en) * | 2013-12-30 | 2014-04-23 | 上海建工二建集团有限公司 | Method for foundation pit connecting channel construction under semi-reverse construction method and connecting auxiliary structure |
| CN104452825A (en) * | 2014-10-13 | 2015-03-25 | 华东交通大学 | Post-cast strip replacing supporting structure used for disassembling building envelope support |
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2015
- 2015-09-06 CN CN201510560542.9A patent/CN105386447A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005171488A (en) * | 2003-12-08 | 2005-06-30 | Sumitomo Metal Ind Ltd | Connection structure between steel wall and reinforced concrete plate |
| CN102587420A (en) * | 2012-02-13 | 2012-07-18 | 中天建设集团有限公司 | Supporter exchanging method for stage construction basement using cast-in-situ bored piles as separation palisade |
| CN103741716A (en) * | 2013-12-30 | 2014-04-23 | 上海建工二建集团有限公司 | Method for foundation pit connecting channel construction under semi-reverse construction method and connecting auxiliary structure |
| CN104452825A (en) * | 2014-10-13 | 2015-03-25 | 华东交通大学 | Post-cast strip replacing supporting structure used for disassembling building envelope support |
Non-Patent Citations (1)
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| 朱士云等: "混凝土后浇带设计与施工技术", 《施工技术》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499199A (en) * | 2016-12-14 | 2017-03-15 | 上海建工二建集团有限公司 | Close on the interim support replacement of subway ultra-deep foundation pit mid-board and its construction method |
| CN108166531A (en) * | 2017-12-26 | 2018-06-15 | 中国建筑第七工程局有限公司 | Basic alter-pouring strips mould plate and the construction method for pouring post-cast strip |
| CN110130355A (en) * | 2018-02-08 | 2019-08-16 | 中国二十冶集团有限公司 | Base plate of foundation pit post-cast strip force transferring structure and its construction method |
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