CN103711201A - Large-span prestressed concrete beam board frame structural system - Google Patents
Large-span prestressed concrete beam board frame structural system Download PDFInfo
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- CN103711201A CN103711201A CN201310745724.4A CN201310745724A CN103711201A CN 103711201 A CN103711201 A CN 103711201A CN 201310745724 A CN201310745724 A CN 201310745724A CN 103711201 A CN103711201 A CN 103711201A
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- 239000011513 prestressed concrete Substances 0.000 title claims description 19
- 238000005452 bending Methods 0.000 claims abstract description 30
- 239000004567 concrete Substances 0.000 claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 34
- 239000010959 steel Substances 0.000 claims description 34
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 3
- 238000005728 strengthening Methods 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 210000003205 muscle Anatomy 0.000 claims 11
- 230000000452 restraining effect Effects 0.000 claims 1
- 238000010008 shearing Methods 0.000 claims 1
- 238000009491 slugging Methods 0.000 claims 1
- 230000002787 reinforcement Effects 0.000 abstract description 15
- 238000007796 conventional method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009415 formwork Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
Description
一、所属技术领域:建筑工程领域1. Technical field: construction engineering field
二、背景技术2. Background technology
大跨度预应力混凝土梁板用于框架结构,目前尚无与之匹配的结构体系,而无法使用,拟框架梁造价也较大,尤其是横向架立筋太多、太长、造价太大,且高空支撑模板繁琐,并且相当多的专家质疑以为不可靠,且对2.4米宽的板柱网必须是5米、7.5米、9.9米固定框距与许多厂房工艺要求不相符。Large-span prestressed concrete beams and slabs are used in frame structures. At present, there is no matching structural system, so they cannot be used. The proposed frame beams are also expensive, especially because there are too many horizontal ribs, too long, and the cost is too high. And the high-altitude support formwork is cumbersome, and quite a few experts questioned that it is unreliable, and the fixed frame spacing of 5 meters, 7.5 meters, and 9.9 meters must be fixed for the 2.4-meter-wide plate-column net, which does not meet the process requirements of many factories.
三、发明内容3. Contents of the invention
本发明提供一种大跨度预应力混凝土梁板框架结构以解决上述弊端。The invention provides a large-span prestressed concrete beam-slab frame structure to solve the above disadvantages.
大跨度预应力混凝土梁板框架结构,包括:框架柱、框架纵梁或柱上牛腿,大跨度预应力混凝土梁板,包括双T板、单T梁板、槽形板、燕形板、矩行梁、桥梁板、多T箱型梁和空心板,其特征在于:把梁板肋对应放置在柱上牛腿上或柱前纵梁上,在混凝土梁板上部,尤其是肋上部增加受弯钢筋,与柱上钢筋连接,梁板肋两端底部有铁埋件与框架纵梁或框架柱牛腿上钢或埋件进行焊接,从而形成一种大跨度预应力混凝土梁板框架结构体系。Large-span prestressed concrete beam-slab frame structure, including: frame columns, frame longitudinal beams or corbels on columns, long-span prestressed concrete beam-slabs, including double T-slabs, single T-slabs, channel-shaped slabs, swallow-shaped slabs, Rectangular beams, bridge slabs, multi-T box girders and hollow slabs are characterized in that: the ribs of the beams and slabs are placed on the corbels on the columns or on the longitudinal beams in front of the columns, and the upper part of the concrete beams and slabs, especially the upper part of the ribs, is increased Bending steel bars are connected with the steel bars on the columns. There are iron embedded parts at the bottom of both ends of the beam and slab ribs, which are welded with the steel or embedded parts on the frame longitudinal beams or frame column corbels, thus forming a large-span prestressed concrete beam-slab frame structure system .
进一步把无翼缘的槽形板肋与柱对应放置,其上部受弯钢筋与柱Further place the ribs without flanges corresponding to the columns, and the upper bending steel bars and the columns
上钢筋连接或把肋加强后上部受弯钢筋与柱钢筋连接或把2个相临的肋合并在一起,或加强后合并在一起,中间灌缝,与柱对应放置,上部受弯钢筋与柱钢筋连接;把有翼缘的双T板的单肋与柱对应放置,梁板上受弯钢筋与柱钢筋连接,也可以把2个相临的去掉对应翼缘的肋连在一起,中间灌缝,与柱对应放置,两板上部尤其两肋上部受弯钢筋一起与柱上钢连接或把两肋或其中一个肋加强后中间灌缝,两板上部尤其两肋上部受弯钢筋一起与柱上钢连接而成。Connect the upper steel bar or connect the upper bending steel bar with the column steel bar after strengthening the ribs or combine two adjacent ribs together, or merge them together after strengthening, fill the middle joint, and place it correspondingly to the column, and the upper bending steel bar and the column Reinforcement connection; place the single rib of the double T plate with flange corresponding to the column, connect the bending reinforcement on the beam plate to the column reinforcement, or connect two adjacent ribs without the corresponding flange, and pour in the middle The upper part of the two plates, especially the upper part of the two ribs, is connected with the steel on the column, or the two ribs or one of the ribs are strengthened, and the joint is filled in the middle, and the upper parts of the two plates, especially the upper part of the two ribs, are connected together with the column Made of steel connections.
进一步大跨度预应力混凝土梁板中受弯钢筋向下部混凝土中设有插筋,端部设有锚筋。Further, the bending reinforcement in the large-span prestressed concrete beam slab is provided with inserting reinforcement in the lower concrete, and an anchor reinforcement is provided at the end.
进一步大跨度预应力混凝土梁板上受弯钢筋量两端多中间少。Further, the amount of bending reinforcement on the large-span prestressed concrete beam slab is more at both ends and less at the middle.
进一步所述的上部设有受弯钢筋的双T板可以去掉一侧翼缘,也可以肋移边部,板宽基本不变,有效面积基本不变,而成“F”板。Further, the double T-slab with bending steel bars on the upper part can remove one side flange, or the ribs can be moved to the side, and the width and effective area of the slab remain basically unchanged, forming an "F" slab.
进一步利用梁板肋下埋件与梁上或牛腿梁上的埋件焊接提供的剪力,小于等于梁板上受弯钢筋与柱上钢筋连接形成的拉力,根据板肋高度形成约束弯矩,从而形成钢接框梁结构。Further use the shear force provided by the welding of the embedded parts under the beam slab rib and the embedded parts on the beam or on the corbel beam, which is less than or equal to the tension formed by the connection of the bending reinforcement on the beam slab and the reinforcement on the column, and form a restraint bending moment according to the height of the slab rib , thus forming a steel-jointed frame-beam structure.
进一步所述的大跨度预应力混凝土梁板在受弯钢筋的大跨度预应力混凝土梁板沿受弯钢筋向上下混凝土中设置插筋,端头部位设置锚筋。Further, in the long-span prestressed concrete beam slab, the large-span prestressed concrete beam slab of the bending steel bar is provided with inserting bars up and down the concrete along the bending steel bar, and the anchor bars are set at the ends.
四、附图说明:4. Description of drawings:
图1-1为大跨度预应力梁板框架结构体系示意图正立面图Figure 1-1 is a schematic diagram of the long-span prestressed beam-slab frame structure system, front and elevation
图1-2为大跨度预应力梁板框架结构体系示意图侧立面图Figure 1-2 is a schematic side elevation view of the long-span prestressed beam-slab frame structure system
图2-1为预应力槽形板框架结构体系示意图正立面图Figure 2-1 is the front elevation view of the schematic diagram of the prestressed channel plate frame structure system
图2—2为预应力槽形板框架结构体系示意图侧立面图Figure 2-2 is a schematic side elevation view of the prestressed channel plate frame structure system
1为框架柱;2为框架纵梁。3为去掉一侧翼缘的上部增加受弯钢筋的双T板;;4为板上受弯钢筋;1 is the frame column; 2 is the frame stringer. 3 is the double T-slab that removes the upper part of one flange and adds bending reinforcement; 4 is the bending reinforcement on the plate;
五、具体实施方式:5. Specific implementation methods:
以双T板为例,如图1所示:用常规方法建框架柱1和柱上牛腿梁2,把两个去掉对应翼缘的双T板3设置在双T板两端框架柱1的牛腿上,把板上部受弯钢筋4与柱1上的钢筋连接,可以在双T板3端头部位设置角钢,与柱1上钢焊接,板下部预埋件与牛腿2上的埋件连接,上面再做二次浇层。此方案,只增加了受弯钢筋和重量较轻的插筋、锚筋、端头角钢,造价非常低,免去了拟框架梁的高空支模板的巨额费用和又粗又长又密的横向架立钢筋,(穿双T板的4个肋为2个×2.4米宽双T板-不穿过的2个×一侧翼缘0.5米=3.8米长),以及审图、设计专家、多半不认可的认为拟框架不是框架梁而是待进一步试验体系的弊端,Taking the double T plate as an example, as shown in Figure 1: the
以槽形板为例:如图2所示:Take the grooved plate as an example: as shown in Figure 2:
1、用常规方法建造框架柱1及柱上牛腿2,牛腿2上预留埋件1. Construct the
2、把上部带受弯钢筋4的槽形板3与柱1对应放置,把两端受弯钢筋4与两端柱1上钢筋连接,把槽形板3端头下部埋件与牛腿2上的埋件连接而成。2. Place the channel-
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CN201310745724.4A CN103711201B (en) | 2013-09-13 | 2013-12-26 | A long-span prestressed concrete beam-slab frame structure system |
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CN201310721930.1A Pending CN103741797A (en) | 2013-09-13 | 2013-12-24 | Prestressed concrete beam plate with upper portion provided with flexural steel bars and frame structure system |
CN201310745724.4A Active CN103711201B (en) | 2013-09-13 | 2013-12-26 | A long-span prestressed concrete beam-slab frame structure system |
CN201310756960.6A Pending CN103711202A (en) | 2013-09-13 | 2013-12-28 | Prestressed concrete beam and slab assembly with upper portion provided with flexural reinforcing steel bars and frame structure |
CN201410028883.7A Pending CN103774749A (en) | 2013-09-13 | 2014-01-07 | Large-span prestressed concrete F plate frame structure system |
CN201410268431.6A Pending CN104018581A (en) | 2013-09-13 | 2014-06-16 | Prestress concrete F slab and framework structure system |
CN201410268701.3A Active CN104018582B (en) | 2013-09-13 | 2014-06-16 | Top is with pedestal at the restressed beam slab and frame structure of restraining moment flexual reinforcement |
CN201410432554.9A Pending CN104234192A (en) | 2013-09-13 | 2014-08-25 | Prestress concrete groove type plate with bent steel bars at upper part and framework structure system |
CN201420522075.1U Expired - Fee Related CN204225273U (en) | 2013-09-13 | 2014-09-05 | A kind of large-span prestressed groove type plate of upper bands bending steel muscle and frame construction |
CN201410462269.1A Pending CN104712058A (en) | 2013-09-13 | 2014-09-05 | Prestressed concrete groove-shaped plate with upper portion provided with flexural steel bars and frame structure system |
CN201410462434.3A Pending CN104264895A (en) | 2013-09-13 | 2014-09-05 | Prestressed concrete F slab and frame structure system |
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CN201310756960.6A Pending CN103711202A (en) | 2013-09-13 | 2013-12-28 | Prestressed concrete beam and slab assembly with upper portion provided with flexural reinforcing steel bars and frame structure |
CN201410028883.7A Pending CN103774749A (en) | 2013-09-13 | 2014-01-07 | Large-span prestressed concrete F plate frame structure system |
CN201410268431.6A Pending CN104018581A (en) | 2013-09-13 | 2014-06-16 | Prestress concrete F slab and framework structure system |
CN201410268701.3A Active CN104018582B (en) | 2013-09-13 | 2014-06-16 | Top is with pedestal at the restressed beam slab and frame structure of restraining moment flexual reinforcement |
CN201410432554.9A Pending CN104234192A (en) | 2013-09-13 | 2014-08-25 | Prestress concrete groove type plate with bent steel bars at upper part and framework structure system |
CN201420522075.1U Expired - Fee Related CN204225273U (en) | 2013-09-13 | 2014-09-05 | A kind of large-span prestressed groove type plate of upper bands bending steel muscle and frame construction |
CN201410462269.1A Pending CN104712058A (en) | 2013-09-13 | 2014-09-05 | Prestressed concrete groove-shaped plate with upper portion provided with flexural steel bars and frame structure system |
CN201410462434.3A Pending CN104264895A (en) | 2013-09-13 | 2014-09-05 | Prestressed concrete F slab and frame structure system |
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CN104018581A (en) | 2014-09-03 |
CN104712058A (en) | 2015-06-17 |
CN104264895A (en) | 2015-01-07 |
CN104018582A (en) | 2014-09-03 |
CN103774749A (en) | 2014-05-07 |
CN104018582B (en) | 2018-11-23 |
CN103711201B (en) | 2019-02-19 |
CN103741797A (en) | 2014-04-23 |
CN204225273U (en) | 2015-03-25 |
CN103711202A (en) | 2014-04-09 |
CN104234192A (en) | 2014-12-24 |
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