CN207363251U - A kind of track-type facilities for being used to control the pitched roof gradient and thickness - Google Patents

A kind of track-type facilities for being used to control the pitched roof gradient and thickness Download PDF

Info

Publication number
CN207363251U
CN207363251U CN201720886793.0U CN201720886793U CN207363251U CN 207363251 U CN207363251 U CN 207363251U CN 201720886793 U CN201720886793 U CN 201720886793U CN 207363251 U CN207363251 U CN 207363251U
Authority
CN
China
Prior art keywords
pitched roof
reinforcement
track
guiding rail
thickness
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201720886793.0U
Other languages
Chinese (zh)
Inventor
李岩
李超刚
钱瑞荣
刘鑫
邱正清
刘家奇
马烽杰
章健
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Urban Construction Yuandong Construction Investment Group Co Ltd
Original Assignee
Beijing Urban Construction Yuandong Construction Investment Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Urban Construction Yuandong Construction Investment Group Co Ltd filed Critical Beijing Urban Construction Yuandong Construction Investment Group Co Ltd
Priority to CN201720886793.0U priority Critical patent/CN207363251U/en
Application granted granted Critical
Publication of CN207363251U publication Critical patent/CN207363251U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)

Abstract

The utility model provides a kind of track-type facilities for being used to control the pitched roof gradient and thickness, applied to pitched roof cast-in-place concrete, the track-type facilities for controlling the pitched roof gradient and thickness include pitched roof template, reinforcement, plate face reinforcing bar, guiding rail, guide supporting and cushion block;Reinforcement is laid on above pitched roof template, multiple cushion blocks are equipped between reinforcement and pitched roof template, plate face reinforcing bar is placed in the top of reinforcement, plate face reinforcing bar is fixed by the bracket on reinforcement is stated, guiding rail is placed in the top of plate face reinforcing bar, guiding rail is fixed on reinforcement or/and plate face reinforcing bar by guide supporting, and guiding rail absolute altitude is concrete surface absolute altitude.The track-type facilities for being used to control the pitched roof gradient and thickness of the utility model, it is ensured that roofing Forming Quality, avoids doing over again and secondary levelling, saved duration, fee of material, labour cost, reduced difficulty of construction.Avoid the phenomenon that roofing seeps water from occurring, do not cause damages to owner.

Description

A kind of track-type facilities for being used to control the pitched roof gradient and thickness
Technical field
Technical field of buildings is the utility model is related to, more particularly to a kind of guide rail for being used to control the pitched roof gradient and thickness Device.
Background technology
In recent years, China's building trade all have from technical merit, construction quality it is larger leap, wherein building Traditional flat roof deck is also slowly substituted due to the backwardness of thermal and insulating performance by pitched roof.Showed in architectural design many new Unique, the colorful sloping roof structure to appear of grain husk, makes the function of house add different color, but what should not be ignored is the emerging of pitched roof Rise and also bring certain influence and hidden danger to roofing construction quality.
Cast-in-place concrete pitched roof difficulty of construction is big, and integral construction quality is difficult to control, and quality easily occurs more for construction Difficulties Problem.These difficult points are primarily present in absolute altitude control, flatness, compactness and the process of vibrating of concrete.Understanding these After construction technology difficult point, engineering staff gives a series of counter-measure by constantly work and summary.
1. pitched roof concrete absolute altitude and flatness control
Control of the absolute altitude of pitched roof concrete than flat roof deck is got up, and difficulty is much bigger, and construction wrong easily makes slope surface coagulation Native upper-thin-lower-thick, to ensure roofing absolute altitude, can weld the steel bar end of a diameter 12mm, upper brush in ridge and eaves gutter per 2m Red paint, the absolute altitude that concrete is carried out using the relief of structure are controlled.
2. pitched roof concrete density and process of vibrating control
The cast-in-place concrete slope roof surface board bottom horizontal reinforcing bar marking is often high-visible, while the nearly top of transverse plate muscle is closeer It is real, and nearly lower part concrete relative loose.General pitched roof concrete is shaken method construction using point, and point method of shaking is exactly to be hung down with vibrating spear A kind of method directly vibrated in template in face of roofing concrete, vibrations area is small, and a step is vibrated in place, improves concrete Compactness;It is short the time required to vibrating, reduce the loss of concrete, concrete is finished up to vibrating, and is struck off with big shoulder, according to plate top Absolute altitude draws control line, is rubbed with the hands with trowel high to plate top mark.
The defects of above-mentioned background technology be primarily present in it is following some:
(1) using the method that red paint measurement concrete plate surface absolute altitude is brushed on steel bar end, error is larger, difficult in casting process It is inconvenient accurately to control.
(2) process of vibrating be easy to cause concrete and largely flows, it is difficult to ensures concrete density.
Utility model content
In view of the present situation of the prior art, is used to control the pitched roof gradient and thickness the purpose of this utility model is to provide one kind The track-type facilities of degree, it ensures roofing Forming Quality, avoids doing over again and secondary levelling, saved duration, fee of material, labour cost, Reduce difficulty of construction;Avoid the phenomenon that roofing seeps water from occurring, do not cause damages to owner.To achieve the above object, this practicality New technical solution is as follows:
A kind of track-type facilities for being used to control the pitched roof gradient and thickness, applied to pitched roof cast-in-place concrete, the use Include pitched roof template, reinforcement in the track-type facilities of the control pitched roof gradient and thickness, plate face reinforcing bar, guiding rail, lead Rail supports and cushion block;The reinforcement is laid on above the pitched roof template, the reinforcement and the pitched roof Multiple cushion blocks are provided between template, the plate face reinforcing bar is placed in the top of the reinforcement, and the plate face reinforcing bar leads to Cross stent to be fixed on the reinforcement, the guiding rail is placed in the top of the plate face reinforcing bar, and the guiding rail leads to Cross guide supporting to be fixed on the reinforcement or/and the plate face reinforcing bar, the guiding rail absolute altitude is concrete surface Absolute altitude.
Preferably, the guiding rail is a plurality of that a plurality of guiding rail is arranged in parallel.
Preferably, it is smaller than between the adjacent guiding rail equal to 2 meters.
Preferably, the guiding rail uses a diameter of 9 millimeters of cold rolled reinforcing steel bar with ribs.
Preferably, the every guiding rail is at least supported by 3 guide supportings, the two neighboring guide supporting Between spacing be 800 millimeters.
Preferably, it is described to be used to control the track-type facilities of the pitched roof gradient and thickness to further include multiple tracks Cut-off net, described section Drift net and the pitched roof template are perpendicular, and the pitched roof template is divided into and a plurality of pours band by Cut-off net described in multiple tracks.
Preferably, between eaves and ridge, the horizontal step pitch L1 between the Cut-off net that adjacent twice are laterally set For 2 meters, the Cut-off net uses steel wire of the mesh for 15*15 millimeters of specifications, and every pours band horizontal length L2 and is less than or equal to 6 Rice.
The beneficial effects of the utility model are:
The track-type facilities for being used to control the pitched roof gradient and thickness of the utility model, take guide rail control floor elevation Measure can ensure roofing Forming Quality, avoid doing over again and secondary levelling, saved duration, fee of material, labour cost, reduced and apply Work difficulty.Avoid the phenomenon that roofing seeps water from occurring, do not cause damages to owner.The method for taking roofing to be laid with guiding rail, adds Reinforced concrete floor elevation controls, so as to improve cast-in-place concrete pitched roof flatness, compactness, ensures roofing thickness and prevents Crack, with the quality assurance duration, good reference and foundation are provided for other same type project constructions.
Brief description of the drawings
Fig. 1 is the track-type facilities schematic diagram for being used to control the pitched roof gradient and thickness of an embodiment of the utility model;
Fig. 2 is to pour to promote according to " S " type route in band work surface at every to pour schematic diagram;
Description of reference numerals:
1- templates;2- reinforcements;3- plate face reinforcing bars;4- guiding rails;5- guide supportings;6- cushion blocks;
7- first pours band;8- the 3rd pours band;9- second pours band;10- the 4th pours band;
11- highest point ridge lines;12- Cut-off nets.
Embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation Example is to the utility model for controlling the track-type facilities of the pitched roof gradient and thickness to be further elaborated.It should manage Solution, specific embodiment described herein are only used for explaining the utility model, are not used to limit the utility model.
Referring to Figures 1 and 2, the track-type facilities for being used to control the pitched roof gradient and thickness of one embodiment of the utility model, Applied to pitched roof cast-in-place concrete, it is characterised in that including pitched roof template 1, reinforcement 2, plate face reinforcing bar 3, lead Rail 4, guide supporting 5 and cushion block 6.
Reinforcement 2 is laid on above pitched roof template 1, is provided between reinforcement 2 and pitched roof template 1 multiple Cushion block 6, plate face reinforcing bar 3 are placed in the top of reinforcement 2, and plate face reinforcing bar 3 is fixed by the bracket on reinforcement 2, the stent Supporting steel bar can be used.Guiding rail 4 is placed in the top of plate face reinforcing bar 3, and guiding rail 4 is fixed on plate bottom steel by guide supporting 5 On muscle 2 or/and plate face reinforcing bar 3,4 absolute altitude of guiding rail is concrete surface absolute altitude.
In the present embodiment, guiding rail 4 is a plurality of, and a plurality of guiding rail 4 is arranged in parallel.Between adjacent guiding rail 4 It is smaller than being equal to 2 meters.Guiding rail 4 uses a diameter of 9 millimeters of cold rolled reinforcing steel bar with ribs.Guide rail reinforcing bar upper surface is coagulation Native face.On vertical pitched roof slope aspect direction, the distance between guide rail reinforcing bar upper surface and pitched roof template 1 h are concrete Thickness.Guide supporting 5 must not be higher by the guide pass of guiding rail 4, not interfere with the flatness of concrete surface so.
It is preferred that every guiding rail 4 is at least supported by 3 guide supportings 5, between two neighboring guide supporting 5 between Away from for 800 millimeters.Guide supporting 5 can use class herringbone structure, and guide supporting 5 includes two blunt angular structures, first obtuse angle The a line of shape structure is connected with a line of second obtuse angle shape, and two blunt angular structures form a class herringbone structure. The top of such herringbone structure is used to connect guiding rail 4.Such stability is good, easy to be welded and fixed.
As a kind of preferable mode, the track-type facilities for controlling the pitched roof gradient and thickness further include multiple tracks Cut-off net 12, Cut-off net 12 and pitched roof template 1 are perpendicular, and pitched roof template 1 is divided into and a plurality of pours band, Fig. 2 by multiple tracks Cut-off net 12 In, pitched roof template, which is trapped net 12 and is divided into 4, pours band, is respectively first to pour band 7, second pour band the 9, the 3rd and pour Band the 8, the 4th pours band 10.
Between eaves and ridge, the horizontal step pitch L1 between the Cut-off net 12 that adjacent twice are laterally set is 2 meters, is cut Drift net 12 uses steel wire of the mesh for 15*15 millimeters of specifications, and every pours band horizontal length L2 and is less than or equal to 6 meters.Steel wire It is fixed on using silk is tied up on beam reinforced steel bar, when concreting takes block placement.Wherein, beam reinforced steel bar includes reinforcement 2 With plate face reinforcing bar 3.
Using the pitched roof cast-in-place concrete for being used to control the track-type facilities of the pitched roof gradient and thickness of above example Construction method, comprises the following steps:
Step 1:Reinforcement 2 is laid with the pitched roof template 1 set up, and in reinforcement 2 and pitched roof template 1 Between place for load-bearing cushion block 6;
Step 2:Multiple stents are fixed in 2 top surface of reinforcement laid, and plate face reinforcing bar 3, plate are laid with stent Face reinforcing bar 3 is oppositely arranged with reinforcement 2;
Step 3:Guide supporting 5 is fixed on reinforcement 2 or/and plate face reinforcing bar 3, in the guide supporting 5 set up Top surface is laid with guiding rail 4, and guiding rail 4 is welded on guide supporting 5, on vertical slope aspect direction, the outer surface of guiding rail 4 Ultimate range between pitched roof template 1 is more than the ultimate range between 5 top surface of guide supporting and pitched roof template 1, guiding 4 absolute altitude of guide rail is concrete surface absolute altitude, and guiding rail 4 is a plurality of, and a plurality of guiding rail 4 is arranged in parallel;
Step 4:Cut-off net 12 is installed, the vertical pitched roof template 1 of Cut-off net 12, a plurality of pour is divided into by pitched roof template 1 Build band;
Step 5:Pitched roof concrete is poured, casting concrete is carried out using the hopper with guiding tube, is poured at eaves Start, construct from lower past ridge, and be symmetry axis with highest point ridge line 11, the symmetrical casting concrete in both sides, is poured at every Build to promote according to " S " type route in band work surface and pour;" S " type route in Fig. 2 as second poured shown in curve in band 9, arrow Direction represents to pour direct of travel.Concreting is constructed since at eaves from lower past ridge, and with highest point ridge line For symmetry axis, the symmetrical casting concrete in both sides.Poured using the hopper with guiding tube, pressure pump concrete can be avoided straight Connecing and be delivered to inclined roof, feeding speed is too fast, under the screening of pumping pressure and bar-mat reinforcement, aggregate separated, slope foot side coarse aggregate It is serious to concentrate, it is not easy scattered and it is difficult to vibration compacting.Guiding tube is added effectively to reduce the speed that concrete freely lands, control is made Industry face ensures that " S " type sequentially promotes the realization poured.Every piece pour band horizontal width be no more than 6m, by " S " type sequentially by down toward On to ridge promote.
Step 6:Concrete-face closure, is vibrated with pouring, completion of vibrating is used using poker vibrator and vibration board It is levelling that floating rule highly receives face along guiding rail 4, controls concrete surface elevation, until pouring construction is completed.
Further, after the completion of levelling in once receipts face in step 6, also pressed second time with plasterer's trowel, it is desirable to closely knit not leak Pressure, also carries out the 3rd time press polish before final set.To ensure concrete pouring quality and compactness, 4 poker vibrators are configured, 2 Platform vibration board, vibrates with pouring, and the completion 3m floating rules that vibrate receive face along rail height;Once after the completion of receipts face, concrete Condense extremely can above people but not sink when, you can with plasterer's trowel press second time, it is desirable to it is closely knit, do not leak pressure;The 3rd is carried out before final set All over press polish.
In the present embodiment, between eaves and ridge, the horizontal step pitch between the Cut-off net 12 that adjacent twice are laterally set L1 is 2 meters, and Cut-off net 12 uses steel wire of the mesh for 15*15 millimeters of specifications, and every pours band horizontal length L2 and is less than or equal to 6 Rice.
Further, guide supporting 5 is fixed on reinforcement 2 or/and plate face reinforcing bar 3 in step 3, what is set up 5 top surface of guide supporting is laid with guiding rail 4, and guiding rail 4 is welded on guide supporting 5, including:
Before guiding rail 4 is laid with, by the coagulation of survey engineer measurement ridge, each negative and positive angle of roofing and ditch inner edge Native face absolute altitude, and concrete surface absolute altitude is identified with guide supporting 5 under the cooperation of welder, guide supporting 5, which is fixed on, have been bound Reinforcement 2 or/and plate face reinforcing bar 3 on, mark spacing be not more than 4 meters, first weld room according to the concrete absolute altitude identified Guiding rail 4 at ridge and negative and positive angle, 4 spacing of guiding rail are set by 2 meters, and absolute altitude is checked by survey crew after installation is complete, Be allowed for access after absolute altitude qualification next procedure, wherein, guiding rail 4 using 9 millimeters of diameter cold rolled reinforcing steel bar with ribs.
After acceptance(check) is completed in the binding of roofing beam slab reinforcing bar, by survey engineer measurement ridge, each negative and positive angle of roofing and water The concrete surface absolute altitude of ditch inner edge, and concrete surface absolute altitude can be identified with steel bar end under the cooperation of welder, steel bar end is fixed on On the beam reinforced steel bar bound, mark spacing is not more than 4m, and ridge and negative and positive are first welded according to the concrete absolute altitude identified Guide rail reinforcing bar at angle, guide rail spacing are set by 2m, and absolute altitude is checked by survey crew after installation is complete.
Various embodiments above be used for control the track-type facilities of the pitched roof gradient and thickness and pitched roof cast-in-place concrete to apply Work method, roofing Forming Quality can be ensured by taking the measure of guide rail control floor elevation, avoided doing over again and secondary levelling, saved Duration, fee of material, labour cost, reduce difficulty of construction.Avoid the phenomenon that roofing seeps water from occurring, do not cause damages to owner. The method for taking roofing to be laid with guiding rail, strengthens the control of concrete plate surface absolute altitude, is put down so as to improve cast-in-place concrete pitched roof Whole degree, compactness, ensure roofing thickness and prevent from crack, with the quality assurance duration, providing for other same type project constructions good Good reference and foundation.
It should be noted that in the case where there is no conflict, the feature in various embodiments above and embodiment can be mutual group Close.
Embodiment described above only expresses the several embodiments of the utility model, its description is more specific and detailed, But it should not be interpreted as limiting the scope of the present invention.It should be pointed out that for the common of this area For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to In the scope of protection of the utility model.

Claims (6)

1. a kind of track-type facilities for being used to control the pitched roof gradient and thickness, applied to pitched roof cast-in-place concrete, its feature exists In, including pitched roof template (1), reinforcement (2), plate face reinforcing bar (3), guiding rail (4), guide supporting (5) and cushion block (6);The reinforcement (2) is laid on above the pitched roof template (1), the reinforcement (2) and the pitched roof Multiple cushion blocks (6) are provided between template (1), the plate face reinforcing bar (3) is placed in the top of the reinforcement (2), institute State plate face reinforcing bar (3) to be fixed by the bracket on the reinforcement (2), the guiding rail (4) is placed in the plate face reinforcing bar (3) top, the guiding rail (4) are fixed on the reinforcement (2) or/and the plate face steel by guide supporting (5) On muscle (3), guiding rail (4) absolute altitude is concrete surface absolute altitude;
The guide supporting (5) includes two blunt angular structures, a line of first blunt angular structure and second obtuse angle shape A line be connected, two blunt angular structures form a class herringbone structure;
The track-type facilities further include multiple tracks Cut-off net (12), and the Cut-off net (12) and the pitched roof template (1) are perpendicular, The pitched roof template (1) is divided into a plurality of pour with (7,8,9,10) by Cut-off net described in multiple tracks (12).
2. the track-type facilities according to claim 1 for being used to control the pitched roof gradient and thickness, it is characterised in that described to draw Guide rail (4) is a plurality of, and a plurality of guiding rail (4) is arranged in parallel.
3. the track-type facilities according to claim 2 for being used to control the pitched roof gradient and thickness, it is characterised in that adjacent institute State between guiding rail (4) be smaller than be equal to 2 meters.
4. the track-type facilities according to claim 2 for being used to control the pitched roof gradient and thickness, it is characterised in that described to draw Guide rail (4) uses a diameter of 9 millimeters of cold rolled reinforcing steel bar with ribs.
5. the track-type facilities according to claim 1 for being used to control the pitched roof gradient and thickness, it is characterised in that every institute State guiding rail (4) at least to be supported by 3 guide supportings (5), the spacing between the two neighboring guide supporting (5) is 800 millimeters.
6. the track-type facilities according to claim 1 for being used to control the pitched roof gradient and thickness, it is characterised in that in eaves Between ridge, the horizontal step pitch L1 between the Cut-off net (12) that adjacent twice are laterally set is 2 meters, the Cut-off net (12) steel wire of the mesh for 15*15 millimeters of specifications is used, every pours band horizontal length L2 and is less than or equal to 6 meters.
CN201720886793.0U 2017-07-20 2017-07-20 A kind of track-type facilities for being used to control the pitched roof gradient and thickness Active CN207363251U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720886793.0U CN207363251U (en) 2017-07-20 2017-07-20 A kind of track-type facilities for being used to control the pitched roof gradient and thickness

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720886793.0U CN207363251U (en) 2017-07-20 2017-07-20 A kind of track-type facilities for being used to control the pitched roof gradient and thickness

Publications (1)

Publication Number Publication Date
CN207363251U true CN207363251U (en) 2018-05-15

Family

ID=62421689

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720886793.0U Active CN207363251U (en) 2017-07-20 2017-07-20 A kind of track-type facilities for being used to control the pitched roof gradient and thickness

Country Status (1)

Country Link
CN (1) CN207363251U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107476567A (en) * 2017-07-20 2017-12-15 北京城建远东建设投资集团有限公司 It is a kind of to control the pitched roof gradient and the construction method and track-type facilities of thickness
CN110067389A (en) * 2019-05-22 2019-07-30 河南西艾尔墙体科技有限公司 A kind of dedicated cast-in-place concrete separator of CL
CN110388061A (en) * 2019-07-26 2019-10-29 深圳市建工集团股份有限公司 Structure and building look for slope sizing receipts face method
CN114033107A (en) * 2021-12-15 2022-02-11 山西五建集团有限公司 Slope roof concrete pouring method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107476567A (en) * 2017-07-20 2017-12-15 北京城建远东建设投资集团有限公司 It is a kind of to control the pitched roof gradient and the construction method and track-type facilities of thickness
CN110067389A (en) * 2019-05-22 2019-07-30 河南西艾尔墙体科技有限公司 A kind of dedicated cast-in-place concrete separator of CL
CN110388061A (en) * 2019-07-26 2019-10-29 深圳市建工集团股份有限公司 Structure and building look for slope sizing receipts face method
CN110388061B (en) * 2019-07-26 2021-07-06 深圳市建工集团股份有限公司 Structure and building slope finding, shaping and face collecting method
CN114033107A (en) * 2021-12-15 2022-02-11 山西五建集团有限公司 Slope roof concrete pouring method
CN114033107B (en) * 2021-12-15 2023-04-18 山西五建集团有限公司 Slope roof concrete pouring method

Similar Documents

Publication Publication Date Title
CN207363251U (en) A kind of track-type facilities for being used to control the pitched roof gradient and thickness
CN107476567A (en) It is a kind of to control the pitched roof gradient and the construction method and track-type facilities of thickness
CN106437142A (en) Construction method and double-layer formwork structure for cast-in-situ slope roof
CN103615110B (en) Random oblique netted nine-squares beam Hyperbolic Roof construction method
CN103590602B (en) The construction method of cast-in-place concrete hollow building roof
CN201649459U (en) Slope roof cast-in-place concrete structure
CN105544873B (en) Construction method of wave-shaped hollow roof
CN108330835A (en) The construction method of setting bracket
CN108457243B (en) Construction method of assembled concrete breakwater
CN109235891A (en) A kind of Large Span Prestressed Beam concrete pitched roof jump storehouse method construction method
CN108532466A (en) A kind of bridge pier over-form construction technique
CN205444887U (en) Slope roofing template system
CN106436732B (en) A kind of strip footing is replaced as the reinforcement means and ruggedized construction of raft foundation
CN209907694U (en) Ribbed steel mesh hollow-out cast-in-situ concrete T-shaped section hollow floor structure
CN103410269A (en) Unbonded prestress cast-in-place reinforced concrete hollow slab construction structure and method
CN113202222A (en) Construction method for assembled type superposed beam slab
CN110080454A (en) LPM light filling body Construction of Cast-in-situ Concrete Hollow
CN208280003U (en) A kind of bridge pier over-form construction system
CN110593477B (en) Construction method of cast-in-situ reinforced concrete special-shaped inclined plate
CN110528524A (en) Volume of concrete foundation unit cellular-type construction method
CN104846745B (en) Urban high-pier support-free formwork turnover construction method
CN110219422A (en) Anti-seismic concrete staircase design method
CN206245730U (en) A kind of cast-in-place pitched roof double template structure
CN106758852B (en) Across foundation pit enclosure to the trestle construction technology of support beam
CN103216102A (en) Construction method for tremie guiding pouring inside steel pipe column

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant