CN115354793A - 一种配置三角锥桁架筋的预制陶粒泡沫混凝土复合剪力墙及其制备方法 - Google Patents
一种配置三角锥桁架筋的预制陶粒泡沫混凝土复合剪力墙及其制备方法 Download PDFInfo
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Abstract
一种配置三角锥桁架筋的预制陶粒泡沫混凝土复合剪力墙及其制备方法属于结构工程领域,通过三角锥双面双向桁架钢筋网骨架将混凝土结构层、陶粒泡沫混凝土保温层连接成一体的复合墙体;三角锥双面双向桁架钢筋网骨架由左右平面钢筋网片和中间一片三角锥双面双向钢筋网片焊接组成。保温层是一种无机轻质保温可循环利用的绿色材料,置于混凝土结构层的中间并通过分层浇筑与其紧密结合,在有效降低墙体自重、提升保温性能的同时可保障墙体承载力和耐久性。三角锥双面双向桁架钢筋网骨架除了包含传统钢筋混凝土剪力墙的水平分布筋、竖向分布筋外,其中的三角锥双面双向钢筋网片还以其独特形式增强了拉结效果,更好地实现墙体各部分协同工作。
Description
技术领域
本发明涉及一种预制陶粒泡沫混凝土夹层复合剪力墙,特别涉及一种配置三角锥桁架筋的预制陶粒泡沫混凝土复合剪力墙,属于结构工程技术领域。
背景技术
陶粒泡沫混凝土是一种兼具质轻、保温、耐火、隔音等优良性能的绿色建筑材料,将其用于装配式建筑的主体结构的保温层符合国家建筑工业化和节能减排等绿色发展的战略要求。但受传统观念和技术水平的影响,目前陶粒泡沫混凝土主要应用于建筑隔墙和带有外保护的围护结构,鲜有用于对承载力要求较大、受力较复杂的主体结构。
传统建筑保温技术采用的低导热系数保温材料因与墙体连接不当常会产生脱落、空鼓等维修和安全问题,且不能做到与主体结构同寿命,还存在大量防火安全隐患;目前多应用于复合剪力墙结构夹芯部位的保温材料强度往往较低,要实现内外侧混凝土墙板协同工作,对拉结件要求非常高,造成较大的工程难题。
发明内容
本发明针对现有技术的不足,提供一种配置三角锥桁架筋的预制陶粒泡沫混凝土复合剪力墙,将陶粒泡沫混凝土用于剪力墙夹层部位,实现了保温承重一体的目标,同时解决了陶粒泡沫混凝土作为保温材料用于复合结构中时与混凝土结构层协同工作的问题。
本发明采用的技术方案如下:
本发明的配置三角锥桁架筋的预制陶粒泡沫混凝土复合剪力墙,包括第一混凝土结构层、陶粒泡沫混凝土保温层、第二混凝土结构层及三角锥双面双向桁架钢筋网骨架;三角锥双面双向桁架钢筋网骨架包括数榀单排三角锥钢筋焊接形成的三角锥双面双向钢筋网片和通过按剪力墙构造要求配置的水平分布筋和竖向分布筋绑扎或焊接制成的第一平面钢筋网片、第二平面钢筋网片;单排三角锥钢筋由两根钢筋弯折而成的波形钢筋通过一定角度将波峰焊接在一起形成,并使每个焊接在一起的波峰与第二平面钢筋网片中水平分布筋和竖向分布筋的交点通过焊接连接,同时波形钢筋相邻两个波底的间距应和与之焊接的第一平面钢筋网片所配置的钢筋间距相同,每个波底与第一平面钢筋网片中水平分布筋和竖向分布筋的交点通过焊接连接。
所述的第一平面钢筋网片、第二平面钢筋网片中的水平分布筋和竖向分布筋,钢筋间距不小于100mm,不大于200mm。
所述的第一混凝土结构层、第二混凝土结构层为普通商品混凝土,第一混凝土结构层或第二混凝土结构层的浇筑厚度均不小于50mm,不大于80mm。
所述的陶粒泡沫混凝土保温层为免振捣陶粒泡沫混凝土,强度不小于2MPa,不大于 10MPa,陶粒可以是黏土陶粒、页岩陶粒、火山灰陶粒、固废陶粒中的任意一种。
所述的配置三角锥桁架筋的预制陶粒泡沫混凝土复合剪力墙的制备方法,包括以下步骤:
第一步,在水平放置的模具内定位三角锥双面双向桁架钢筋网骨架;
第二步,均匀浇筑第一混凝土结构层,使第一平面钢筋网片能够嵌入其中,并使混凝土保护层厚度不小于15mm且不大于30mm,进行第一次振捣,使其密实平整;
第三步,在下层普通混凝土初凝前,均匀浇筑陶粒泡沫混凝土保温层,应避免振捣以防止陶粒泡沫混凝土中的陶粒骨料上浮和泡沫破裂;
第四步,在陶粒泡沫混凝土初凝前,均匀浇筑第二混凝土结构层,使第二平面钢筋网片嵌入其中,并使混凝土保护层厚度不小于15mm且不大于30mm,进行振捣,再将表面刮平;
第五步,浇筑好的试件进行带模养护,达到目标强度后,拆除模板,即可得到配置三角锥桁架筋的预制陶粒泡沫混凝土复合剪力墙。
本发明的有益效果是:
(1)本发明中剪力墙以轻质、隔热的陶粒泡沫混凝土为中间保温层,置于混凝土结构层中间,既能减轻剪力墙结构构件的自重又能保证强度和耐久性。
(2)本发明中剪力墙的混凝土结构层和陶粒泡沫混凝土保温层在初凝前浇筑,使不同混凝土材料层相互密实结合,保证界面间粘结性能的可靠性,还可以使得保温材料与主体结构同寿命。
(3)本发明中三角锥双面双向桁架钢筋网骨架包括了传统钢筋混凝土剪力墙的水平分布筋、竖向分布筋,并且三角锥桁架加强了拉结效果,实现空间内双面双向受力,更好地实现墙体各部分协同工作。
(4)本发明制备的配置三角锥桁架筋的预制陶粒泡沫混凝土复合剪力墙,可实现保温承重一体化,具有自重轻、隔热性好、施工简便的等优点。
附图说明
图1是复合剪力墙结构三维示意图
图2是复合剪力墙结构剖面示意图
图3是单排三角锥钢筋示意图
图4是波形钢筋示意图
图5是三角锥双面双向钢筋网片结构示意图
图6是平面钢筋网片结构示意图
图7是三角锥双面双向桁架钢筋网骨架展开示意图
其中,上述附图包括以下附记:1为第一混凝土结构层,2为陶粒泡沫混凝土保温层, 3为第二混凝土结构层,4为三角锥双面双向桁架钢筋网骨架,5为三角锥双面双向钢筋网片,6为第一平面钢筋网片,7为第二平面钢筋网片,8为单排三角锥钢筋,9为波形钢筋,901为波峰,902为波底。
具体实施方式
下面结合附图及实施例对本发明做进一步详细说明:
一种配置三角锥桁架筋的预制陶粒泡沫混凝土复合剪力墙,其特征在于:包括第一混凝土结构层1、陶粒泡沫混凝土保温层2、第二混凝土结构层3及三角锥双面双向桁架钢筋网骨架4,如图1、2所示。三角锥双面双向桁架钢筋网骨架4包括数榀单排三角锥钢筋 8焊接形成的三角锥双面双向钢筋网片5和通过按剪力墙构造要求配置的水平分布筋和竖向分布筋绑扎或焊接制成的第一平面钢筋网片6、第二平面钢筋网片7,如图6、7所示。单排三角锥钢筋8由两根钢筋弯折而成的波形钢筋9通过一定角度将波峰901焊接在一起形成,如图3、4、5所示,并使每个焊接在一起的波峰901与第二平面钢筋网片7中水平分布筋和竖向分布筋的交点通过焊接连接,同时波形钢筋9相邻两个波底902的间距应和与之焊接的第一平面钢筋网片6所配置的钢筋间距相同,每个波底902与第一平面钢筋网片6中水平分布筋和竖向分布筋的交点通过焊接连接,如图1所示。
所述的第一平面钢筋网片6、第二平面钢筋网片7中的水平分布筋和竖向分布筋,钢筋间距为150mm。
在此实施例中,所述的第一混凝土结构层、第二混凝土结构层为普通商品混凝土,第一混凝土结构层、第二混凝土结构层的浇筑厚度均为50mm。
在此实施例中,所述的陶粒泡沫混凝土保温层为免振捣陶粒泡沫混凝土,强度为5MPa,陶粒采用固废陶粒。
下面以使用普通陶粒泡沫混凝土的配置三角锥桁架筋的预制陶粒泡沫混凝土复合剪力墙为例,描述制备步骤:
第一步,依据剪力墙尺寸要求支设水平放置的模板;
第二步,将焊接好的三角锥双面双向桁架钢筋网骨架放置在模具中进行定位和固定;
第三步,均匀浇筑第一混凝土结构层,使三角锥双面双向桁架钢筋网骨架中的第一平面钢筋网片可以嵌入其中,进行第一次振捣,使混凝土表面平整并达到50mm厚度,即得到下层普通混凝土;
第三步,在第一混凝土结构层初凝前,均匀浇筑陶粒泡沫混凝土保温层,浇筑完成后应避免振捣,以防止陶粒泡沫混凝土中的陶粒骨料上浮和泡沫破裂;
第四步,在陶粒泡沫混凝土保温层初凝前,第二次均匀浇筑第二混凝土结构层,使三角锥双面双向桁架钢筋网骨架中的第二平面钢筋网片嵌入其中,进行第二次振捣,再将表面刮平整使其达到50mm厚度,。
第五步,浇筑好的试件进行带模养护,达到目标强度后,拆除模板,即可得到配置三角锥桁架筋的预制陶粒泡沫混凝土复合剪力墙,如图1所示。
本实施例中剪力墙以轻质、隔热的陶粒泡沫混凝土为中间保温层,置于混凝土结构层中间,既能减轻剪力墙结构构件的自重又能保证强度和耐久性。混凝土结构层和陶粒泡沫混凝土保温层在初凝前浇筑在一起,使不同混凝土材料层相互密实结合,保证界面间粘结性能的可靠性,还可以使得保温材料与主体结构同寿命。
本实施例中三角锥双面双向桁架钢筋网骨架包括了传统钢筋混凝土剪力墙的水平分布筋、竖向分布筋及拉结筋,桁架中的锥形单元可以实现空间内双面双向受力,更好地实现墙体各部分协同工作。
本实施例中的剪力墙轻质保温、抗震性能优良,整体工艺较为简单,易实现工业化生产,可用于装配式建筑的主体结构。
在本实施例的描述中,需要说明的是,术语“内”、“外”、“上”、“下”等所指示的位置关系为附图所示的位置关系,因此不能理解为对本发明的限制。
上述内容仅举例性说明了本发明的优选实施例,而非用于限制本发明。任何本领域的技术人士皆可对上述实施例进行修饰或更改。因此凡在未脱离本发明所揭示的精神与技术思想下所完成的一切等效修饰或更改,仍在本发明的保护范围之内。
Claims (5)
1.一种配置三角锥桁架筋的预制陶粒泡沫混凝土复合剪力墙,其特征在于:包括第一混凝土结构层(1)、陶粒泡沫混凝土保温层(2)、第二混凝土结构层(3)及三角锥双面双向桁架钢筋网骨架(4);三角锥双面双向桁架钢筋网骨架(4)包括数榀单排三角锥钢筋(8)焊接形成的三角锥双面双向钢筋网片(5)、水平分布筋和竖向分布筋绑扎或焊接制成的第一平面钢筋网片(6)及第二平面钢筋网片(7);单排三角锥钢筋(8)由两根钢筋弯折而成的波形钢筋(9)通过一定角度将波峰(901)焊接在一起形成,并使每个焊接在一起的波峰(901)与第二平面钢筋网片(7)中水平分布筋和竖向分布筋的交点通过焊接连接,同时波形钢筋(9)相邻两个波底(902)的间距应和与之焊接的第一平面钢筋网片(6)所配置的钢筋间距相同,每个波底(902)与第一平面钢筋网片(6)中水平分布筋和竖向分布筋的交点通过焊接连接。
2.根据权利要求1所述的配置三角锥桁架筋的预制陶粒泡沫混凝土复合剪力墙,其特征在于:第一平面钢筋网片(6)、第二平面钢筋网片(7)中的水平分布筋和竖向分布筋的钢筋间距不小于100mm,不大于200mm。
3.根据权利要求1所述的配置三角锥桁架筋的预制陶粒泡沫混凝土复合剪力墙,其特征在于:第一混凝土结构层(1)、第二混凝土结构层(3)为普通商品混凝土,第一混凝土结构层(1)或第二混凝土结构层(3)的浇筑厚度均不小于50mm,不大于80mm。
4.根据权利要求1所述的配置三角锥桁架筋的预制陶粒泡沫混凝土复合剪力墙,其特征在于:陶粒泡沫混凝土保温层(2)为免振捣陶粒泡沫混凝土,强度不小于2MPa,不大于10MPa,陶粒是黏土陶粒、页岩陶粒、火山灰陶粒、固废陶粒中的任意一种。
5.根据权利要求1所述的配置三角锥桁架筋的预制陶粒泡沫混凝土复合剪力墙的制备方法,其特征在于,包括以下步骤:
第一步,在水平放置的模具内定位三角锥双面双向桁架钢筋网骨架(4);
第二步,均匀浇筑第一混凝土结构层(1),使第一平面钢筋网片(6)能够嵌入其中,并使混凝土保护层厚度不小于15mm且不大于30mm,进行第一次振捣,使其密实平整;
第三步,在下层普通混凝土初凝前,均匀浇筑陶粒泡沫混凝土保温层(2),应避免振捣以防止陶粒泡沫混凝土中的陶粒骨料上浮和泡沫破裂;
第四步,在陶粒泡沫混凝土初凝前,均匀浇筑第二混凝土结构层(3),使第二平面钢筋网片(7)嵌入其中,并使混凝土保护层厚度不小于15mm且不大于30mm,进行振捣,再将表面刮平;
第五步,浇筑好的试件进行带模养护,达到目标强度后,拆除模板,即可得到配置三角锥桁架筋的预制陶粒泡沫混凝土复合剪力墙。
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