CN104963295A - Support frame for non-ground internal-force balanced cast-in-place beam and construction method thereof - Google Patents
Support frame for non-ground internal-force balanced cast-in-place beam and construction method thereof Download PDFInfo
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- CN104963295A CN104963295A CN201510445571.0A CN201510445571A CN104963295A CN 104963295 A CN104963295 A CN 104963295A CN 201510445571 A CN201510445571 A CN 201510445571A CN 104963295 A CN104963295 A CN 104963295A
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Abstract
The invention relates to a support frame for a non-ground internal-force balanced cast-in-place beam and a construction method thereof, pertaining to the technical field of cast-in-place continuous beam false work. The support frame comprises bearing platforms, pre-embedded steel plates of the bearing platforms, pier bodies, pre-buried steel plates of the pier bodies, vertical rods, unloading steel supports, oblique support rods, a horizontal bracing rod, a horizontal pull rod, double-bonded joist steel, bailey beams, horizontal tie rods, tie rods, square wood and a bamboo glued plate. The support frame for the non-ground internal-force balanced cast-in-place beam is flexible in structure and convenient in assembly and disassembly. Material of the support frame can be utilized repeatedly such that construction progress can be greatly quickened and construction cost is decreased. The construction method does not comprise the step of foundation treatment in order to reduce construction cost and diminish the risk of construction safety. By removing the limitations that superfluous shearing force is generated on the bearing platforms and the pier bodies and the inclination angle of the oblique support rods cannot be above 45 degrees, operation is performed more flexibly and conveniently; an equivalent-load grid division method is adopted during primary distribution of design of the bailey beams so that stress is more uniform and reasonable; and compared with machining of sand buckets, the unloading steel supports are applied more easily and have larger height adjustability and are safe and reliable.
Description
Technical field
The invention belongs to cast-in-situ continuous beam falsework technical field, particularly relate to a kind of non-internal force balance formula Cast-in-situ Beam bracing frame and construction method thereof of landing.
Background technology
Along with the development of modern bridge Construction Technology, prestressing force is widely used in bridge, causes large span ultra-wide cast-in-situ continuous beam to be applied in more and more widely in highway, railroad bridge.In falsework method beam body cast-in-place construction, main method has scaffold and steel tube frame two kinds.And these two kinds of method great majority need original ground process or arrange temporary base, while causing waste of material, add the quality of construction and the risk of construction safety.
In " a kind of large-span non-floor type cast-in-place beam falsework and construction method thereof " patent No. CN201320250546, take the lead in proposing non-design concept of landing cast-in-place falsework, but its design has the following disadvantages:
1. inclined support bar structure stress is unreasonable.
Bearing diagonal rod member is stretch bending rod member, greatly reduces the enabling capabilities of steel pipe, affects structural safety and stability.Do not arrange triatic stay and pull bar at the upper and lower two ends of brace, making pier bear unnecessary horizontal shear affects structural safety, and be subject to can not the restriction at super many 45 ° of angle of inclination, limits the range of application of support.
2. Euler's formula is understood inaccurate.
Euler's formula is understood and is inaccurately shown that the inaccurate and brace in pier shaft pre-embedded steel slab position arranges incorrect two aspects, because brace is longer than the free compressed length of vertical rod, so the tie-rod quantity of brace is greater than the tie-rod quantity equaling vertical rod, the tie-rod of his vertical rod arranges 3, the tie-rod of brace arranges 2, obviously incorrect to the deciphering of axial compression Euler's formula.
3. primary distribution beam Bailey beam is not according to waiting load to distribute, and shine into waste of material, construction cost increases, and stress deformation is uneven.
4. sand bucket taked by the frame that falls, and sand bucket processing technology is complicated, highly non-adjustable, uses dumb.
Therefore need badly in the middle of prior art and want a kind of novel technical scheme to solve this problem.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of non-internal force balance formula Cast-in-situ Beam bracing frame and construction method thereof of landing, with solving, bridge construction large-span continuous beam difficulty of construction under complex geological condition is large, construction cost is high, quality difficulty control and pier shaft horizontal shear strength poor; In " a kind of large-span non-floor type cast-in-place beam falsework and construction method thereof " patent No. CN201320250546, take the lead in proposing non-design concept of landing cast-in-place falsework, but but there is the technical problems such as many defects in its design.
A kind of non-internal force balance formula Cast-in-situ Beam bracing frame that lands, it is characterized in that: comprise cushion cap, cushion cap pre-embedded steel slab, pier shaft, pier shaft pre-embedded steel slab, vertical rod, unloading steel support, inclined support bar, triatic stay, girt, Two bors d's oeuveres i iron, Bailey beam, inter-tie, tie-rod, the lumps of wood, bamboo slab rubber, described cushion cap pre-embedded steel slab is fixedly connected with the top of cushion cap by stone bolt, is provided with the gap being not less than 50mm between cushion cap pre-embedded steel slab and the top of cushion cap; Described pier shaft pre-embedded steel slab is fixedly connected with the sidewall of pier shaft by stone bolt, is provided with the gap being not less than 50mm between pier shaft pre-embedded steel slab and the sidewall of pier shaft; One end of described vertical rod is fixedly connected with cushion cap pre-embedded steel slab, the other end of vertical rod is connected with unloading steel support, and vertical rod has two row, and the quantity of often row vertical rod is more than 3 or 3, often row vertical rod is evenly distributed on corresponding cushion cap, and two row vertical rod one_to_one corresponding are arranged simultaneously; One end of described inclined support bar is fixedly connected with cushion cap pre-embedded steel slab, and the other end of inclined support bar is connected with unloading steel support, and inclined support bar has two row, and often the quantity of row inclined support bar and installation site are all arranged with the vertical rod one_to_one corresponding on same cushion cap; Corresponding with two the respectively inclined support bar in the two ends of described triatic stay is fixedly connected with the one end unloading steel support and is fixedly connected with; One end that corresponding with two the respectively inclined support bar in the two ends of described girt is fixedly connected with cushion cap pre-embedded steel slab is fixedly connected with; The bottom of described Two bors d's oeuveres i iron is connected with unloading steel support, and described Bailey beam is fixedly mounted on the top of Two bors d's oeuveres i iron; Described inter-tie is fixedly connected with vertical rod, inclined support bar and pier shaft pre-embedded steel slab in the horizontal direction respectively; Described tie-rod is fixedly connected with vertical rod, inclined support bar and inter-tie respectively; The described lumps of wood is laid on the top of Bailey beam, and the quantity of the lumps of wood is more than 2 or 2, and the spacing between adjacent two lumps of wood is 40 ~ 60cm; Described bamboo slab rubber is laid on the top of the lumps of wood.
A non-construction method of landing internal force balance formula Cast-in-situ Beam bracing frame, is characterized in that: comprise the following steps,
Step one, build cushion cap and pier shaft
Fixed bearing platform mould and pier shaft mould are installed, and pre-buried cushion cap pre-embedded steel slab and pier shaft pre-embedded steel slab in cushion cap mould and pier shaft mould respectively, make between cushion cap pre-embedded steel slab and the top of cushion cap, to leave the gap being not less than 50mm, the gap being not less than 50mm is left between pier shaft pre-embedded steel slab and the sidewall of pier shaft
Concreting cushion cap and concrete pier shaft, concrete strength removes cushion cap mould and pier shaft mould after arriving and requiring;
Step 2, mounting bracket
Vertical rod is uprightly placed on cushion cap pre-embedded steel slab, by welding or being fixedly connected with vertical rod and cushion cap pre-embedded steel slab by flange connected mode, makes vertical rod perpendicular to cushion cap pre-embedded steel slab, weld horizontal tie-rod between pier shaft pre-embedded steel slab and vertical rod,
Crane is sling the top of inclined support bar, bottom surface and the cushion cap pre-embedded steel slab of inclined support bar pass through to weld or be fixedly connected with by flange connected mode, the upper end of inclined support bar is connected with triatic stay by welding or flange connected mode, the lower end of inclined support bar is connected with girt by welding or flange connected mode, triatic stay, girt and two mutual corresponding inclined support bars form isosceles trapezoidal structure, weld horizontal tie-rod between vertical rod and inclined support bar
The top of vertical rod and the top fixed installation unloading steel support of inclined support bar,
The top fixed installation Two bors d's oeuveres i iron of unloading steel support,
The top fixed installation Bailey beam of Two bors d's oeuveres i iron;
Step 3, repetition step 2 more than twice or twice;
Step 4, the laying lumps of wood and bamboo slab rubber
The lumps of wood is laid on the top of Bailey beam, and the spacing between adjacent two lumps of wood is 40 ~ 60cm,
The top laying depth of the lumps of wood is the bamboo slab rubber of 2cm, and non-construction of landing internal force balance formula Cast-in-situ Beam bracing frame completes.
The mode that is fixedly connected with of described vertical rod and cushion cap pre-embedded steel slab is for weld or flange is connected.
The mode that is fixedly connected with of described inclined support bar and cushion cap pre-embedded steel slab is for weld or flange is connected.
The quantity of the tie-rod of described connection inclined support bar is more than or equal to the quantity of the tie-rod of connecting upright pole.
By above-mentioned design scheme, the present invention can bring following beneficial effect:
1, flexible structure of the present invention, easy accessibility, can greatly accelerating construction progress;
2, material used in the present invention can reuse, and economizes on resources, and reduces construction cost;
3, the present invention is used for, in cast-in-situ continuous beam and continuous steel frame construction, can not carrying out basement process, reducing the security risk in construction cost and construction;
4, the present invention is suitable for being applied in some special geology or construction environment, the place of bearing frame method construction could be adopted after maybe must adopting basement process for Full space support construction can not be adopted, can effectively avoid the construction period long, construction cost be large, the problems such as the wasting of resources.
5, above inclined support bar, triatic stay is set, below inclined support bar, girt is set, form internal force balance system, eliminate the restriction that the angle of inclination producing unnecessary shearing and inclined support bar to cushion cap and pier shaft can not be greater than 45 °, use more flexible.
The load grid split plot design such as the employings during design of 6, primary distribution Bailey beam, stressed evenly reasonable;
7, unload steel support application than sand bucket processing simple, height adjustability is large, safe and reliable.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further illustrated:
Fig. 1 is that the non-internal force balance formula Cast-in-situ Beam bracing frame that lands of the present invention is at structural representation along the bridge.
Fig. 2 is the non-structural representation of internal force balance formula Cast-in-situ Beam bracing frame in cross-bridges direction that land of the present invention.
Fig. 3 is the FB(flow block) of the non-construction method of landing internal force balance formula Cast-in-situ Beam bracing frame of the present invention.
In figure, 1-cushion cap, 2-cushion cap pre-embedded steel slab, 3-pier shaft, 4-pier shaft pre-embedded steel slab, 5-vertical rod, 6-unload steel support, 7-inclined support bar, 8-triatic stay, 9-girt, 10-Two bors d's oeuveres i iron, 11-Bailey beam, 12-inter-tie, 13-tie-rod, the 14-lumps of wood, 15-bamboo slab rubber.
Detailed description of the invention
As shown in the figure, a kind of non-internal force balance formula Cast-in-situ Beam bracing frame that lands, it is characterized in that: comprise cushion cap 1, cushion cap pre-embedded steel slab 2, pier shaft 3, pier shaft pre-embedded steel slab 4, vertical rod 5, unloading steel support 6, inclined support bar 7, triatic stay 8, girt 9, Two bors d's oeuveres i iron 10, Bailey beam 11, inter-tie 12, tie-rod 13, the lumps of wood 14, bamboo slab rubber 15, described cushion cap pre-embedded steel slab 2 is fixedly connected with by the top of stone bolt with cushion cap 1, is provided with the gap being not less than 50mm between the top of cushion cap pre-embedded steel slab 2 and cushion cap 1; Described pier shaft pre-embedded steel slab 4 is fixedly connected with by the sidewall of stone bolt with pier shaft 3, is provided with the gap being not less than 50mm between the sidewall of pier shaft pre-embedded steel slab 4 and pier shaft 3; One end of described vertical rod 5 is fixedly connected with cushion cap pre-embedded steel slab 2, the other end of vertical rod 5 is connected with unloading steel support 6, and vertical rod 5 has two row, and the quantity of often row vertical rod 5 is more than 3 or 3, often row vertical rod 5 is evenly distributed on corresponding cushion cap 1, and two row vertical rod 5 one_to_one corresponding are arranged simultaneously; One end of described inclined support bar 7 is fixedly connected with cushion cap pre-embedded steel slab 2, the other end of inclined support bar 7 is connected with unloading steel support 6, inclined support bar 7 has two row, and often the quantity of row inclined support bar 7 and installation site are all arranged with vertical rod 5 one_to_one corresponding on same cushion cap 1; Corresponding with two the respectively inclined support bar 7 in the two ends of described triatic stay 8 is fixedly connected with the one end unloading steel support 6 and is fixedly connected with; One end that corresponding with two the respectively inclined support bar 7 in the two ends of described girt 9 is fixedly connected with cushion cap pre-embedded steel slab 2 is fixedly connected with; The bottom of described Two bors d's oeuveres i iron 10 is connected with unloading steel support 6, and described Bailey beam 11 is fixedly mounted on the top of Two bors d's oeuveres i iron 10; Described inter-tie 12 is fixedly connected with vertical rod 5, inclined support bar 7 and pier shaft pre-embedded steel slab 4 in the horizontal direction respectively; Described tie-rod 13 is fixedly connected with vertical rod 5, inclined support bar 7 and inter-tie 12 respectively; The described lumps of wood 14 is laid on the top of Bailey beam 11, and the quantity of the lumps of wood 14 is more than 2 or 2, and the spacing between adjacent two lumps of wood 14 is 40 ~ 60cm; Described bamboo slab rubber 15 is laid on the top of the lumps of wood 14.
A non-construction method of landing internal force balance formula Cast-in-situ Beam bracing frame, is characterized in that: comprise the following steps,
Step one, build cushion cap 1 and pier shaft 3
Fixed bearing platform 1 mould and pier shaft 3 mould are installed, and pre-buried cushion cap pre-embedded steel slab 2 and pier shaft pre-embedded steel slab 4 in cushion cap 1 mould and pier shaft 3 mould respectively, make between the top of cushion cap pre-embedded steel slab 2 and cushion cap 1, to leave the gap being not less than 50mm, the gap being not less than 50mm is left between the sidewall of pier shaft pre-embedded steel slab 4 and pier shaft 3
Concreting cushion cap 11 and concrete pier shaft 13, concrete strength removes cushion cap 1 mould and pier shaft 3 mould after arriving and requiring;
Step 2, mounting bracket
Vertical rod 5 is uprightly placed on cushion cap pre-embedded steel slab 2, is fixedly connected with vertical rod 5 and cushion cap pre-embedded steel slab 2, makes vertical rod 5 perpendicular to cushion cap pre-embedded steel slab 2, weld horizontal tie-rod 12 between pier shaft pre-embedded steel slab 4 and vertical rod 5 by welding or by flange connected mode,
Crane is sling the top of inclined support bar 7, the bottom surface of inclined support bar 7 passes through to weld or be fixedly connected with by flange connected mode with cushion cap pre-embedded steel slab 2, the upper end of inclined support bar 7 is connected with triatic stay 8 by welding or flange connected mode, the lower end of inclined support bar 7 is connected with girt 9 by welding or flange connected mode, triatic stay 8, girt 9 and two mutual corresponding inclined support bars 7 form isosceles trapezoidal structure, weld horizontal tie-rod 12 between vertical rod 5 and inclined support bar 7
The top of vertical rod 5 and the top fixed installation unloading steel support 6 of inclined support bar 7,
The top fixed installation Two bors d's oeuveres i iron 10 of unloading steel support 6,
The top fixed installation Bailey beam 11 of Two bors d's oeuveres i iron 10;
Step 3, repetition step 2 more than twice or twice;
Step 4, the laying lumps of wood 14 and bamboo slab rubber 15
The lumps of wood 14 is laid on the top of Bailey beam 11, and the spacing between adjacent two lumps of wood 14 is 40 ~ 60cm,
The top laying depth of the lumps of wood 14 is the bamboo slab rubber 15 of 2cm, and non-construction of landing internal force balance formula Cast-in-situ Beam bracing frame completes.
The mode that is fixedly connected with of described vertical rod 5 and cushion cap pre-embedded steel slab 2 is for weld or flange is connected.
The mode that is fixedly connected with of described inclined support bar 7 and cushion cap pre-embedded steel slab 2 is for weld or flange is connected.
The quantity of the tie-rod 13 of described connection inclined support bar 7 is more than or equal to the quantity of the tie-rod 13 of connecting upright pole 5.
The present invention is non-, and the design feature of landing internal force balance formula Cast-in-situ Beam bracing frame is: on the both sides cushion cap 1 for supporting Cast-in-situ Beam and pier shaft 3, being symmetrical arranged two side stands, not arranging temporary base;
The form of structure of described two side stands is:
At the top of the cushion cap 1 of concreting, cushion cap pre-embedded steel slab 2 is set by stone bolt;
The sidepiece differing heights position of the pier shaft 3 of concreting arranges pier shaft pre-embedded steel slab 4 respectively by stone bolt;
Described cushion cap pre-embedded steel slab 2 props up vertical rod 5 and inclined support bar 7 respectively;
Differing heights position between described each pier shaft pre-embedded steel slab 4 and vertical rod 5 is connected with inter-tie 12;
Between two symmetrically arranged two inclined support bars 7, upper end arranges triatic stay 8, and lower end arranges girt 9;
Arrange unloading steel support 6 respectively at the top of described vertical rod 5 and inclined support bar 7, described unloading steel support 6 arranges Two bors d's oeuveres i iron 10, and Bailey beam 11 is arranged on Two bors d's oeuveres i iron 10.
The thickness of described cushion cap pre-embedded steel slab 2 and pier shaft pre-embedded steel slab 4 is 20mm.
The present invention is non-, and the design feature of landing internal force balance formula Cast-in-situ Beam bracing frame is also:
Described inclined support bar 7 forms balance sysmte inside with the triatic stay 8 of upper end and the girt 9 of lower end, does not produce unnecessary horizontal shear, evaded the weakness of concrete structure shear behavior difference to cushion cap 1 and pier shaft 3; .
Described vertical rod 5 with between cushion cap pre-embedded steel slab 2, between inclined support bar 7 with cushion cap pre-embedded steel slab 2 and described inter-tie 12 with between pier shaft pre-embedded steel slab 4 all by weld or flange is connected, reduce free compressed length to reach, improve the object of bearing capacity.
In the centre of described vertical rod 5, the centre of inclined support bar 7 is all connected with pier shaft pre-embedded steel slab 4 by inter-tie 12, the free compressed length L of vertical rod 5 and inclined support bar 7 is made to be reduced to original 1/2, by Euler's formula, the bearing power increase of known vertical rod 5 and inclined support bar 74 times;
Described unloading steel support 6 makes simply, safety factor is high, adjustability is large;
During described Bailey beam 11 transverse distribution, the load grid split plot design such as to have employed and ensure that all support loads of every sheet Bailey beam 11 are impartial, thus can guarantee that support system uniform force, compressive strain are even, ensure bracket stable safety.The present invention tries out especially in the cast-in-situ continuous beam cast-in-place construction of ultra-wide variable cross-section.
Claims (5)
1. the non-internal force balance formula Cast-in-situ Beam bracing frame that lands, it is characterized in that: comprise cushion cap (1), cushion cap pre-embedded steel slab (2), pier shaft (3), pier shaft pre-embedded steel slab (4), vertical rod (5), unloading steel support (6), inclined support bar (7), triatic stay (8), girt (9), Two bors d's oeuveres i iron (10), Bailey beam (11), inter-tie (12), tie-rod (13), the lumps of wood (14), bamboo slab rubber (15), described cushion cap pre-embedded steel slab (2) is fixedly connected with by the top of stone bolt with cushion cap (1), the gap being not less than 50mm is provided with between the top of cushion cap pre-embedded steel slab (2) and cushion cap (1), described pier shaft pre-embedded steel slab (4) is fixedly connected with by the sidewall of stone bolt with pier shaft (3), is provided with the gap being not less than 50mm between the sidewall of pier shaft pre-embedded steel slab (4) and pier shaft (3), one end of described vertical rod (5) is fixedly connected with cushion cap pre-embedded steel slab (2), the other end of vertical rod (5) is connected with unloading steel support (6), vertical rod (5) has two row, the quantity of often row vertical rod (5) is more than 3 or 3, often row vertical rod (5) is evenly distributed on corresponding cushion cap (1), and two row vertical rod (5) one_to_one corresponding are arranged simultaneously, one end of described inclined support bar (7) is fixedly connected with cushion cap pre-embedded steel slab (2), the other end of inclined support bar (7) is connected with unloading steel support (6), inclined support bar (7) has two row, and often the quantity of row inclined support bar (7) and installation site are all arranged with vertical rod (5) one_to_one corresponding on same cushion cap (1), corresponding with two the respectively inclined support bar (7) in the two ends of described triatic stay (8) is fixedly connected with the one end unloading steel support (6) and is fixedly connected with, one end that corresponding with two the respectively inclined support bar (7) in the two ends of described girt (9) is fixedly connected with cushion cap pre-embedded steel slab (2) is fixedly connected with, the bottom of described Two bors d's oeuveres i iron (10) is connected with unloading steel support (6), and described Bailey beam (11) is fixedly mounted on the top of Two bors d's oeuveres i iron (10), described inter-tie (12) is fixedly connected with vertical rod (5), inclined support bar (7) and pier shaft pre-embedded steel slab (4) in the horizontal direction respectively, described tie-rod (13) is fixedly connected with vertical rod (5), inclined support bar (7) and inter-tie (12) respectively, the described lumps of wood (14) is laid on the top of Bailey beam (11), and the quantity of the lumps of wood (14) is more than 2 or 2, and the spacing between adjacent two lumps of wood (14) is 40 ~ 60cm, described bamboo slab rubber (15) is laid on the top of the lumps of wood (14).
2. a non-construction method of landing internal force balance formula Cast-in-situ Beam bracing frame, is characterized in that: comprise the following steps,
Step one, build cushion cap (1) and pier shaft (3)
Fixed bearing platform (1) mould and pier shaft (3) mould are installed, and pre-buried cushion cap pre-embedded steel slab (2) and pier shaft pre-embedded steel slab (4) in cushion cap (1) mould and pier shaft (3) mould respectively, make to leave the gap being not less than 50mm between the top of cushion cap pre-embedded steel slab (2) and cushion cap (1), the gap being not less than 50mm is left between the sidewall of pier shaft pre-embedded steel slab (4) and pier shaft (3)
Concreting cushion cap (11) and concrete pier shaft (13), concrete strength removes cushion cap (1) mould and pier shaft (3) mould after arriving and requiring;
Step 2, mounting bracket
Vertical rod (5) is uprightly placed on cushion cap pre-embedded steel slab (2), vertical rod (5) and cushion cap pre-embedded steel slab (2) is fixedly connected with by welding or by flange connected mode, make vertical rod (5) perpendicular to cushion cap pre-embedded steel slab (2), weld horizontal tie-rod (12) between pier shaft pre-embedded steel slab (4) and vertical rod (5)
Crane is sling the top of inclined support bar (7), bottom surface and the cushion cap pre-embedded steel slab (2) of inclined support bar (7) pass through to weld or be fixedly connected with by flange connected mode, the upper end of inclined support bar (7) is connected with triatic stay (8) by welding or flange connected mode, the lower end of inclined support bar (7) is connected with girt (9) by welding or flange connected mode, triatic stay (8), girt (9) and two mutual corresponding inclined support bars (7) form isosceles trapezoidal structure, weld horizontal tie-rod (12) between vertical rod (5) and inclined support bar (7),
The top of vertical rod (5) and top fixed installation unloading steel support (6) of inclined support bar (7),
Top fixed installation Two bors d's oeuveres i iron (10) of unloading steel support (6),
Top fixed installation Bailey beam (11) of Two bors d's oeuveres i iron (10);
Step 3, repetition step 2 more than twice or twice;
Step 4, the laying lumps of wood (14) and bamboo slab rubber (15)
The lumps of wood (14) is laid on the top of Bailey beam (11), and the spacing between adjacent two lumps of wood (14) is 40 ~ 60cm,
The top laying depth of the lumps of wood (14) is the bamboo slab rubber (15) of 2cm, and non-construction of landing internal force balance formula Cast-in-situ Beam bracing frame completes.
3. the non-internal force balance formula Cast-in-situ Beam bracing frame that lands according to claim 1, is characterized in that: the mode that is fixedly connected with of described vertical rod (5) and cushion cap pre-embedded steel slab (2) is for weld or flange is connected.
4. the non-internal force balance formula Cast-in-situ Beam bracing frame that lands according to claim 1, is characterized in that: the mode that is fixedly connected with of described inclined support bar (7) and cushion cap pre-embedded steel slab (2) is for weld or flange is connected.
5. the non-internal force balance formula Cast-in-situ Beam bracing frame that lands according to claim 1, is characterized in that: the quantity of the tie-rod (13) of described connection inclined support bar (7) is more than or equal to the quantity of the tie-rod (13) of connecting upright pole (5).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510445571.0A CN104963295A (en) | 2015-07-27 | 2015-07-27 | Support frame for non-ground internal-force balanced cast-in-place beam and construction method thereof |
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| CN201510445571.0A CN104963295A (en) | 2015-07-27 | 2015-07-27 | Support frame for non-ground internal-force balanced cast-in-place beam and construction method thereof |
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| CN106049288A (en) * | 2016-06-27 | 2016-10-26 | 广州市第二市政工程有限公司 | Graded casting construction method for cast-in-place annular cantilever pier stud |
| CN106087746A (en) * | 2016-06-14 | 2016-11-09 | 江苏燕宁建设工程有限公司 | A kind of cast-in-situ box girder falsework construction method and bridge |
| CN107190986A (en) * | 2017-05-02 | 2017-09-22 | 郑楚英 | A kind of construction method of concrete structure |
| CN110565528A (en) * | 2019-08-08 | 2019-12-13 | 中铁五局集团有限公司 | Novel assembled cast in situ concrete support |
| CN113186836A (en) * | 2021-06-01 | 2021-07-30 | 中铁七局集团第三工程有限公司 | Construction method of brand-new prestress integral bridge falsework |
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