CN115726392B - Pile cap and section steel beam steel bar arrangement structure and construction method - Google Patents
Pile cap and section steel beam steel bar arrangement structure and construction method Download PDFInfo
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- CN115726392B CN115726392B CN202310017275.5A CN202310017275A CN115726392B CN 115726392 B CN115726392 B CN 115726392B CN 202310017275 A CN202310017275 A CN 202310017275A CN 115726392 B CN115726392 B CN 115726392B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 203
- 239000010959 steel Substances 0.000 title claims abstract description 203
- 238000010276 construction Methods 0.000 title claims abstract description 52
- 239000004567 concrete Substances 0.000 claims abstract description 51
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 48
- 238000004873 anchoring Methods 0.000 claims abstract description 27
- 230000002787 reinforcement Effects 0.000 claims abstract description 12
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 15
- 238000010009 beating Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 8
- 238000005452 bending Methods 0.000 claims description 7
- 238000003466 welding Methods 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 5
- 210000003205 muscle Anatomy 0.000 description 10
- 230000003014 reinforcing effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The invention relates to the field of steel structure construction of a shaped steel beam and a pile cap, in particular to a pile cap and a shaped steel beam steel bar arrangement structure and a construction method, wherein the steel bar arrangement structure comprises pile longitudinal ribs, cap bottom ribs and beam bottom longitudinal ribs which are sequentially arranged in an anchoring manner between the outer side surface of the lower part among reinforced concrete piles, concrete steel beams and the pile cap and a steel bar shear key; and the construction of the reinforcement arrangement at the joint of the optimized section steel beam and the pile cap is eliminated, the sleeve connection of the reinforcement sleeve of the pile cap and the double-sided welding of the longitudinal reinforcement at the bottom of the beam are eliminated, and the problem that the reinforcement is easy to fall off in the hoisting process is solved.
Description
Technical Field
The invention relates to the field of steel structure construction of a section steel beam and a pile cap, in particular to a pile cap, section steel beam and steel bar arrangement structure and a construction method.
Background
The shaped steel beam is generally used for bearing larger force or used for converting the column above the supporting floor, so that the joint of the shaped steel beam and the pile cap is complex in force and more in reinforcement. For example, the conversion beam is generally connected with a frame column or a shear wall during the design, and is generally a concrete beam or a prestressed concrete beam. The column above the floor is supported by the conversion type steel beam, so that the node stress is larger, the reinforcement is more, the node reinforcement at the pile and the bearing platform is more complex in arrangement, the type steel beam is larger, the field welding is caused, the installation construction surface is limited, the situation that the reinforcement arrangement is not opened and the steel bars are framed (namely, the arrangement of the reinforcement is interfered with the type steel beam or the steel bar shear key) often occurs, the construction quality is difficult to guarantee, and the construction requirement cannot be met.
In traditional construction scheme, in the region that the reinforcing bar was beaten the frame, generally can take reserved sleeve and on-the-spot welded connected form to solve, after the normal shaped steel roof beam equipment welding was accomplished, the beam bottom indulges the muscle and passes through connecting plate double-sided welding, and the cushion cap end muscle uses sleeve welding on shaped steel shear key, and the stake is indulged the muscle and is used sleeve welding on the shear key, lies in the cushion cap reinforcing bar of shaped steel roof beam bottom and lays earlier, and the beam end muscle and the shaped steel roof beam hoist and mount together that the ligature is accomplished.
However, in the construction process, particularly in the construction process of a basement part, the construction surface for installation and welding is limited, the complex construction of the joints is inconvenient, and the joint is inconvenient, and the sleeve and the connecting plate of the part cannot be welded without working surfaces, so that the steel bars are easy to fall off during hoisting, potential safety hazards exist, the construction quality is difficult to guarantee, and the construction requirement cannot be met.
Disclosure of Invention
The invention provides a pile cap and section steel beam steel bar arrangement structure and a construction method, which aim to solve the technical problems that the installation and welding construction surfaces are limited, the complex construction of joints is inconvenient, and the welding work of partial sleeves and connecting plates cannot be carried out.
The technical problems of the invention are realized by the following technical scheme: a pile cap and section steel beam steel bar arrangement structure comprises a reinforced concrete pile arranged in the vertical direction, a concrete steel beam arranged in the horizontal direction and a pile cap positioned between the upper part of the reinforced concrete pile and the concrete steel beam; the pile is characterized in that a steel bar shear key is arranged in the pile cap, a reinforced concrete pile is connected to the lower anchor of the steel bar shear key, a section steel beam is connected to the side part of the steel bar shear key, the section steel beam is poured in the concrete steel beam, pile longitudinal ribs, bearing cap bottom ribs and beam bottom longitudinal ribs are sequentially arranged between the lower outer side surface among the reinforced concrete pile, the concrete steel beam and the pile cap and the steel bar shear key in an anchor manner, the pile longitudinal ribs and the bearing cap bottom ribs of the section steel beam frame-beating part are not connected with the section steel beam, and the beam bottom longitudinal ribs of the section steel bar shear key frame-beating part are not connected with the steel bar shear key.
Preferably, the pile longitudinal bar is anchored in a reinforced concrete pile, the upper end of the pile longitudinal bar is bent in the horizontal direction to form a longitudinal bar anchoring part, and the longitudinal bar anchoring part is anchored and connected in a concrete steel beam.
Preferably, the bearing platform bottom ribs comprise vertical bottom ribs and transverse bottom ribs, the vertical bottom ribs are connected with the reinforced concrete pile and the pile platform in an anchoring mode along the vertical direction, and the transverse bottom ribs are connected with the pile platform and the concrete steel beam in an anchoring mode along the horizontal direction.
Preferably, the beam bottom longitudinal ribs comprise vertical bottom longitudinal ribs and transverse bottom longitudinal ribs, the vertical bottom longitudinal ribs are connected with reinforced concrete piles and pile caps in an anchoring manner, and the transverse bottom longitudinal ribs are connected with concrete steel beams and pile caps in an anchoring manner.
The invention also provides a construction method for arranging the pile cap and the section steel beams, which comprises the following construction steps:
Step one, according to the size design of the section steel beam, treating the pile longitudinal ribs at the top of the reinforced concrete pile;
Step two, according to the size design of the profile steel shear key, processing the bearing platform bottom rib at the bearing platform of the pile;
And thirdly, according to the size design of the profile steel shear key, the beam bottom longitudinal bars are anchored in the reinforced concrete piles in a bending mode, and a three-layer reinforced bar arrangement structure is formed.
Step four, after the bottom ribs of the bearing platform and the longitudinal ribs of the beam bottom are paved in sequence, fixing the section steel beam with the section steel shear key into the reinforced concrete pile through hoisting installation;
And fifthly, binding the rest reinforcing steel bar main bodies after the hoisting of the section steel beam is completed, so as to form a reinforcing steel bar framework whole.
Preferably, the concrete construction steps for treating the pile longitudinal ribs at the top of the reinforced concrete pile in the first step comprise the following steps: the pile longitudinal rib and the section steel beam frame beating part are anchored in the concrete steel beam in a bending way along the horizontal direction, and the pile longitudinal rib and the section steel beam avoiding part are directly anchored in the concrete steel beam.
Preferably, the specific construction steps for processing the bearing platform bottom rib at the bearing platform of the pile in the second step comprise the following steps: the pile cap bottom rib and the section steel beam avoiding part surround the pile cap in a ring form, the pile cap bottom rib and the section steel shear key frame-beating part, and the pile cap bottom rib is disconnected and connected with the reinforced concrete pile through the bent anchor; the edge steel bars of the pile cap are directly anchored in the concrete steel beam.
Preferably, the anchoring length of the beam bottom longitudinal bar bending anchor in the reinforced concrete pile in the step three is not less than 35d.
Preferably, after the section steel beam is hoisted, binding the rest part of the steel bar main body to form a steel bar framework, wherein the concrete construction steps of the whole steel bar framework comprise:
Binding a reinforcing steel bar main body of the pile cap, and fixing the reinforcing steel bar main body of the pile cap and a reinforcing steel bar main body of the concrete girder by stirrups to form a closed loop;
And the stirrups are used for fixing the reinforced concrete piles, the pile caps and the reinforced main body of the concrete steel beam to form a closed loop, so that the reinforced skeleton forms a whole.
Preferably, the three-layer steel bar arrangement structure in the second step comprises pile longitudinal bars of the bottom layer, bearing platform bottom bars of the middle layer and beam bottom longitudinal bars of the upper layer.
In summary, the invention has the following beneficial effects:
The pile cap and the section steel beam steel bar arrangement structure adopt a three-layer steel bar anchoring mode, and the steel bars at the reinforced concrete pile, the concrete steel beam and the pile cap are bent and anchored, so that the structural design of a sleeve and a connecting plate is replaced, and the situations that the pile cap and the section steel beam steel bars are arranged without opening, the section steel beam and the steel bars are framed, and no working surface exists during installation and welding are eliminated.
According to the construction method for arranging the reinforcing steel bars of the pile cap and the section steel beams, the arrangement construction of the reinforcing steel bars at the section steel beams and the pile cap nodes is optimized, the sleeve connection of the reinforcing steel bars of the pile cap and the double-sided welding of the longitudinal reinforcing steel bars at the bottom of the pile cap are canceled, the problem that the reinforcing steel bars are easy to fall off in the hoisting process is solved, a feasible scheme is provided for the construction of the pile cap of a basement part, the construction quality and the safety coefficient in hoisting are improved while the construction is facilitated, the construction progress of project key nodes is smoothly advanced, the construction period delay is avoided, the installation efficiency is improved, the construction period is shortened, and the construction quality is guaranteed.
Drawings
FIG. 1 is a flow chart of the construction of arranging pile cap and section steel beams and reinforcing steel bars;
fig. 2 is a structural diagram of the pile cap and section steel beam rebar arrangement according to example 1;
FIG. 3 is an enlarged schematic view of the structure of FIG. 2 at A;
FIG. 4 is a diagram of a conventional construction pile cap and section steel beam rebar arrangement;
fig. 5 is a schematic diagram of a conventional construction node B' arrangement of reinforcing bars.
Reference numerals illustrate:
1. reinforced concrete piles; 2. a concrete steel girder; 3. pile cap; 4. shear key of the section steel; 5. a section steel beam; 6. pile longitudinal ribs; 61. a longitudinal rib anchoring portion; 7. a bearing platform bottom rib; 71. vertical bottom ribs; 72. transverse bottom ribs; 8. longitudinal ribs at the bottom of the beam; 81. vertical bottom longitudinal ribs; 82. transverse bottom longitudinal ribs; 9. a sleeve; 10. a connecting plate; 4', prototype steel shear keys; 5', prototype steel girder; 6', pile steel bars; 7', a bearing platform rib; 8', beam bottom ribs.
Detailed Description
In order that the above objects, features and advantages of the invention will be more clearly understood, a further description of the invention will be rendered by reference to the appended drawings and examples.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced otherwise than as described herein, and therefore the present invention is not limited to the specific embodiments of the disclosure that follow.
In the construction scheme of the conventional pile cap and section steel beam reinforcement arrangement structure, as shown in fig. 4 and 5, pile reinforcement 6 'and prototype steel beam 5' are connected through a reserved sleeve 9; the bearing platform rib 7 'is connected with the frame-forming part of the prototype steel girder 5' through a reserved sleeve 9; the beam bottom rib 8 'and the prototype steel shear key 4' are framed and welded on both sides through a connecting plate 10; the beam bottom rib 8 'and the prototype steel beam 5' are hoisted together after being bound by stirrups.
Examples
As shown in fig. 2 and 3, a pile cap and section steel beam steel bar arrangement structure comprises a reinforced concrete pile 1 arranged in a vertical direction, a concrete steel beam 2 arranged in a horizontal direction, and a pile cap 3 positioned between the upper part of the reinforced concrete pile 1 and the concrete steel beam 2; all are cast concrete with steel structure main bodies; the steel section shear keys 4 are arranged in the pile cap 3, and the steel section shear keys 4 are used for fixing the steel section beams 5, so that the steel section beams can realize self-standing capability before pouring, overturning is avoided, and meanwhile, the toughness of the nodes is increased; the reinforced concrete pile 1 is connected in the lower part anchor of shaped steel shear key 4, the lateral part of shaped steel shear key 4 is connected with shaped steel roof beam 5, shaped steel roof beam 5 pour in the concrete girder 2, in the concrete structure between the concrete main body structure of lower part lateral surface between reinforced concrete pile 1, concrete girder 2 and pile cap 3 and shaped steel shear key 4 from outside to inside anchor in proper order and be provided with pile longitudinal rib 6, cushion cap end rib 7 and beam bottom longitudinal rib 8, pile longitudinal rib 6, cushion cap end rib 7 and beam bottom longitudinal rib 8 in this embodiment be with the reinforced structure of shaped steel shear key 4 and shaped steel roof beam 5 frame-beating part. The pile longitudinal rib 6 and the bearing platform bottom rib 7 of the section steel beam 5 are not connected with the section steel beam 5, the beam bottom longitudinal rib 8 of the section steel shear key 4 is not connected with the section steel shear key 4, the structural design of a sleeve and a connecting plate is canceled, and the problem that the steel bar is easy to fall off when being lifted is solved, so that the construction difficulty condition that the steel bar is not arranged, the section steel beam is installed, the steel bar is lifted and no working surface exists during welding is avoided.
Wherein, in the pile longitudinal bar 6 anchor setting reinforced concrete pile 1, the upper end of pile longitudinal bar 6 and with the reinforcing bar of the section steel beam 5 frame punching part buckle along the horizontal direction and form longitudinal bar anchor portion 61, longitudinal bar anchor portion 61 anchor connection concrete girder 2 and reinforced concrete pile 1.
Wherein, the cushion cap end muscle 7 includes vertical end muscle 71 and horizontal end muscle 72, and vertical end muscle 71 is along vertical direction anchor connection reinforced concrete pile 1 and pile cap 3, and horizontal end muscle 72 is buckled anchor connection pile cap 3 and concrete girder steel 2 along the horizontal direction by the upper portion of vertical end muscle 71.
The beam bottom longitudinal ribs 8 comprise vertical bottom longitudinal ribs 81 and transverse bottom longitudinal ribs 82, the vertical bottom longitudinal ribs 81 are connected with the reinforced concrete pile 1 and the pile cap 3 along the vertical anchoring, and the transverse bottom longitudinal ribs 82 are connected with the concrete steel beam 2 and the pile cap 3 along the horizontal anchoring.
Example 2: the embodiment also provides a construction method for arranging the pile cap and the steel bars of the section steel beams in the embodiment 1, which mainly comprises the following construction steps as shown in figures 1-3:
firstly, treating pile longitudinal ribs 6 at the top of a reinforced concrete pile 1 according to the size design of a section steel beam 5; firstly, breaking the top of a reinforced concrete pile 1 along the broken pile head side line according to construction requirements, forming a longitudinal rib anchoring part 61 by bending the pile longitudinal rib 6 at the frame beating part of the pile longitudinal rib 6 and the section steel beam 5, and anchoring the pile longitudinal rib 6 in the concrete steel beam 2 along the horizontal direction, wherein the anchoring length meets the requirements of 35d (d is the diameter of a steel bar) and laE; the other pile longitudinal ribs 6 and the shaped steel beam 5 do not interfere with each other and are vertically and directly anchored in the concrete steel beam 2, and the anchoring length also meets the requirements of 35d and laE.
Step two, according to the size design of the profile steel shear key 4, processing the bearing platform bottom rib 7 at the position of the pile bearing platform 3; the avoidance part of the bearing platform bottom rib 7 and the section steel beam 5 surrounds the pile platform 3 in a ring-shaped form, the bearing platform bottom rib 7 and the frame beating part of the section steel shear key 4 are required to be disconnected and anchored in the reinforced concrete pile 1 for 15d; the edge steel bars of the pile cap 3 are directly anchored in the concrete steel beam 2, and the anchoring length is 15d.
Step three, according to the size design of the profile steel shear key 4, the beam bottom longitudinal ribs 8 are bent and anchored in the reinforced concrete pile 1 to form a three-layer reinforced bar arrangement structure: the anchoring length of the vertical bottom longitudinal ribs 81 of the beam bottom longitudinal ribs 8 in the reinforced concrete pile 1 is not less than 35d. Thereby forming three layers of steel bar arrangement structures which are respectively a pile longitudinal rib 6 at the bottom layer, a bearing platform bottom rib 7 at the middle layer and a beam bottom longitudinal rib 8 at the upper layer, and are anchored in the reinforced concrete pile 1 and the concrete steel beam 2.
Step four, after the bearing platform bottom ribs 7 and the beam bottom longitudinal ribs 8 are paved in sequence, fixing the section steel beam 5 with the section steel shear key 4 into the reinforced concrete pile 1 through hoisting installation; the section steel shear key 4 plays a role in fixing the section steel beam 5, so that the section steel beam 5 has self-standing capability before pouring, and the section steel beam 5 is prevented from overturning and meanwhile the toughness of the node is increased.
Step five, after the hoisting of the section steel beam 5 is completed, binding the rest reinforcing steel bar main bodies to form a reinforcing steel bar framework, wherein the method specifically comprises the following steps:
1) Binding the steel bar main body of the pile cap 3 and other steel bar structural main bodies, fixing the steel bar main body of the pile cap 3 and the steel bar main body of the concrete steel beam 2 by stirrups, and forming a closed loop by surrounding the bottom bars 7, liang Yao bars and the beam top bars of the pile cap;
2) The reinforced concrete pile 1, the pile cap 3 and the reinforced main body of the concrete steel beam 2 are fixed by stirrups, the stirrups encircle the pile longitudinal bars 6, the cap bottom bars 7, liang Yao bars and the beam top bars to form a closed loop, the reinforced concrete skeleton forms a whole, and then the template is supported to pour concrete to form a concrete main body structure.
The present invention is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification and equivalent changes to the above-mentioned embodiments according to the technical substance of the present invention are still within the protection scope of the technical solution of the present invention.
Claims (7)
1. A pile cap and profiled steel beam reinforcement arrangement structure comprises a reinforced concrete pile (1) arranged in the vertical direction, a concrete steel beam (2) arranged in the horizontal direction, and a pile cap (3) positioned between the upper part of the reinforced concrete pile (1) and the concrete steel beam (2); be provided with shaped steel shear key (4) in pile cap (3), reinforced concrete stake (1) are connected in the lower part anchor of shaped steel shear key (4), the lateral part of shaped steel shear key (4) is connected with shaped steel roof beam (5), shaped steel roof beam (5) pour in concrete girder steel (2), its characterized in that: pile longitudinal ribs (6), bearing platform bottom ribs (7) and beam bottom longitudinal ribs (8) are sequentially arranged between the outer side face of the lower part between the reinforced concrete pile (1), the concrete steel beam (2) and the pile bearing platform (3) and the section steel shear key (4) in an anchoring manner, the pile longitudinal ribs (6) and the bearing platform bottom ribs (7) of the section steel beam (5) frame-beating part are not connected with the section steel beam (5), and the beam bottom longitudinal ribs (8) of the section steel shear key (4) frame-beating part are not connected with the section steel shear key (4); the pile longitudinal ribs (6) are anchored in the reinforced concrete pile (1), the upper ends of the pile longitudinal ribs (6) are bent in the horizontal direction to form longitudinal rib anchoring parts (61), and the longitudinal rib anchoring parts (61) are anchored and connected in the concrete steel beam (2); the pile cap bottom ribs (7) comprise vertical bottom ribs (71) and transverse bottom ribs (72), the vertical bottom ribs (71) are connected with the reinforced concrete pile (1) and the pile cap (3) in an anchoring mode along the vertical direction, and the transverse bottom ribs (72) are connected with the pile cap (3) and the concrete steel beam (2) in an anchoring mode along the horizontal direction; the beam bottom longitudinal ribs (8) comprise vertical bottom longitudinal ribs (81) and transverse bottom longitudinal ribs (82), the vertical bottom longitudinal ribs (81) are connected with the reinforced concrete pile (1) and the pile cap (3) in an anchoring mode, and the transverse bottom longitudinal ribs (82) are connected with the concrete steel beam (2) and the pile cap (3) in an anchoring mode.
2. A construction method of a pile cap and section steel beam rebar arrangement according to claim 1, comprising the following construction steps:
Firstly, treating pile longitudinal ribs (6) at the top of a reinforced concrete pile (1) according to the size design of a section steel beam (5);
Step two, according to the size design of the profile steel shear key (4), processing a bearing platform bottom rib (7) at the position of the pile bearing platform (3);
Thirdly, bending and anchoring the beam bottom longitudinal ribs (8) in the reinforced concrete piles (1) according to the size design of the profile steel shear keys (4) to form a three-layer reinforced bar arrangement structure;
Step four, after the bearing platform bottom ribs (7) and the beam bottom longitudinal ribs (8) are paved in sequence, fixing the section steel beam (5) with the section steel shear key (4) into the reinforced concrete pile (1) through hoisting installation;
and fifthly, binding the rest reinforcing steel bar main bodies after the hoisting of the section steel beam (5) is completed, so as to form a reinforcing steel bar framework whole.
3. The construction method of the pile cap and section steel beam steel bar arrangement structure according to claim 2, wherein the concrete construction step of treating the pile longitudinal bars (6) at the top of the reinforced concrete pile (1) in the first step comprises the following steps: and the pile longitudinal rib (6) and the section steel beam (5) are anchored in the concrete steel beam (2) in a bending way along the horizontal direction, the pile longitudinal rib (6) and the section steel beam (5) are avoided, and the pile longitudinal rib is directly anchored in the concrete steel beam (2).
4. The construction method of the pile cap and section steel beam steel bar arrangement structure according to claim 2, wherein the concrete construction step of treating the cap bottom bar (7) at the pile cap (3) in the second step comprises the following steps: the avoidance part of the bearing platform bottom rib (7) and the section steel beam (5) surrounds the pile cap (3) in a ring form, the bearing platform bottom rib (7) and the section steel shear key (4) are framed, and the disconnected bending anchor of the bearing platform bottom rib (7) is connected with the reinforced concrete pile (1); the edge steel bars of the pile cap (3) are directly anchored in the concrete steel beam (2).
5. The construction method of the pile cap and section steel beam steel bar arrangement structure according to claim 2, wherein: and thirdly, the anchoring length of the beam bottom longitudinal ribs (8) in the reinforced concrete pile (1) is not less than 35d.
6. The construction method of the pile cap and section steel beam steel bar arrangement structure according to claim 2, wherein: step five, after the hoisting of the section steel beam (5) is completed, binding the rest part of the steel bar main body to form the whole concrete construction steps of the steel bar framework include:
1) Binding a steel bar main body of the pile cap (3), and fixing the steel bar main body of the pile cap (3) and the steel bar main body of the concrete steel beam (2) by stirrups to form a closed loop;
2) The reinforced concrete pile (1), the pile cap (3) and the reinforced main body of the concrete steel beam (2) are fixed by stirrups to form a closed loop, so that the reinforced skeleton forms a whole.
7. The construction method of the pile cap and section steel beam steel bar arrangement structure according to claim 2, wherein: and in the second step, the three-layer steel bar arrangement structure comprises a pile longitudinal bar (6) at the bottom layer, a bearing platform bottom bar (7) at the middle layer and a beam bottom longitudinal bar (8) at the upper layer.
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| CN202310017275.5A CN115726392B (en) | 2023-01-06 | 2023-01-06 | Pile cap and section steel beam steel bar arrangement structure and construction method |
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| KR100694763B1 (en) * | 2004-09-11 | 2007-03-14 | (주)엠씨에스공법 | Construction methods of underground structure adopting concrete-composite crossbeam |
| CN103669866B (en) * | 2013-12-20 | 2015-08-26 | 广东省第四建筑工程公司 | The construction method of basement reinforced concrete post node connecting structure |
| CN104895197B (en) * | 2015-05-29 | 2017-04-05 | 重庆大学 | A kind of profile steel concrete column reinforced beam joint connecting method |
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| CN107965056A (en) * | 2018-01-12 | 2018-04-27 | 上海城乡建筑设计院有限公司 | A kind of improved profile steel concrete column beam connecting node and its improved method |
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