不同地区村镇住宅混凝土自保温砌块砌体的设计与研究
发布时间：2018-07-22 17:25
【摘要】：结合当今我国农村的实际：普遍存在围护结构保温性能差、能耗大、抗震性能差等问题；另外,在城市建设中以及遭遇重大地震灾害后,都会产生巨量的建筑垃圾需要处理,若对其进行妥善地资源化利用、变废为宝,则生态意义和经济意义突出。本文围绕国家科技支撑计划课题《不同地区村镇建筑适宜性抗震关键技术研究与示范》,选择拥有40%人口、占50%国内生产总值的夏热冬冷地区和对保温要求最高的严寒地区的墙体砌块开展系统研究,设计出适合各地区的农村房屋新型节能自保温混凝土承重砌块,并分别对各砌块墙体的热工性能、砌体基本力学性能和抗震性能进行一系列试验和理论研究,主要研究工作和成果如下：夏热冬冷地区：1、再生混凝土砌块配合比设计研究对再生骨料的制备流程和物理性能进行试验研究；提出再生混凝土自保温砌块的配合比设计方法,提出再生骨料最佳取代率。2、再生混凝土自保温砌块砌体基本力学性能试验研究对再生混凝土自保温砌块分别开展了砌体抗压性能试验、沿通缝抗剪性能试验和剪压复合抗剪性能试验研究,获得了该类型砌体的基本力学性能指标,掌握了该类型砌体破坏的基本特征。提出了抗压强度平均值计算公式、沿通缝抗剪强度平均值计算公式；绘制出了实测剪压相关曲线,给出剪压复合抗剪破坏特征的建议界限值,并提出以纯剪强度为对比参数的该类型砌体剪压复合抗剪承载力理论公式,首次把纯压、纯剪和剪压复合强度统一到一个计算公式中,实现了平滑过渡。3、“自携式”再生混凝土自保温承重砌块砌体振动台试验研究结合“自携式”构造柱-圈梁体系,对单层单跨足尺再生混凝土自保温承重砌块房屋模1型进行振动台试验研究,分析模型结构的破坏特征、动力特性及测点反应,对模型结构的抗震能力进行评价,提出“自携式”再生混凝土自保温砌块砌体抗震抗剪承载力公式,为进一步推广应用再生混凝土砌块和该结构体系提供理论依据。严寒地区：1、新型节能混凝土自保温砌块块型设计对节能混凝土自保温砌块热工、力学性能和容重进行多目标综合优化分析,开发出只需280mm墙厚即可满足严寒地区节能要求的新型自保温承重砌块块型,节约了原材料,降低了成本。提出孔洞“外厚内窄,,非均匀对称排列的节能保温设计建议、提出“相邻孔洞整插保温板”的节能保温措施建议。2、新型节能混凝土自保温砌块砌体基本力学性能试验研究突破规范提出“强砂浆弱砌块”匹配原则,并就此对新型节能自保温砌块开展了砌体抗压性能试验、沿通缝抗剪性能试验,获得了该类型砌体的基本力学性能指标,掌握了该类砌体破坏的基本特征。并给出该类型砌体抗压强度、抗剪强度平均值公式。3、新型节能混凝土自保温承重砌块砌体抗震性能试验研究结合“自携式”体系和“强砂浆弱砌块”的匹配原则,对新型砌块墙体进行低周反复荷载试验,分析了该类型墙体破坏特征,并对各项抗震性能指标进行了详细分析,最后提出了“自携式”新型砌块墙体抗震抗剪承载力建议公式。为该类型砌块、该结构形式的推广应用及突破规范提出的“强砂浆弱砌块”匹配原则提供理论依据。
[Abstract]:Combined with the actual situation in the rural areas of our country, the problems of poor insulation performance, large energy consumption and poor seismic performance are common in the enclosure structure. In addition, huge amount of construction waste will be needed to be treated in urban construction and after major earthquake disasters. This paper focuses on the research and demonstration of the national science and technology support program, the key technology for the suitability of village and town buildings in different areas, and chooses a 40% population, a hot winter cold area with 50% gross domestic product and the wall block of the cold area with the highest heat preservation requirements, and the design of rural housing suitable for various areas. A new type of energy saving and self insulating concrete bearing block, and a series of experimental and theoretical studies on the thermal performance of each block wall, the basic mechanical properties and the seismic performance of masonry are carried out. The main research work and results are as follows: 1, the preparation process of regenerated concrete block mix design for recycled aggregate and the preparation process of recycled aggregate The physical properties are tested, the mix ratio design method of reclaimed concrete self insulation block is put forward, the optimum replacement rate of recycled aggregate.2 is put forward, and the experimental research on the basic mechanical properties of reclaimed concrete self insulation masonry is carried out on the masonry compression performance test of the reclaimed concrete self insulation block, and the shear performance test along the through joint and the shear performance test are carried out. The basic mechanical properties of this type of masonry are obtained and the basic characteristics of this type of masonry are obtained. The formula for calculating the average value of the compressive strength is put forward, and the formula is calculated along the average value of the shear strength along the joint. The measured shear pressure correlation curve is drawn and the shear pressure composite shear failure characteristics are given. The boundary value is proposed and the shear compressive strength theory formula of this type of masonry shear pressure is put forward with the YISHION shear strength as the contrast parameter. For the first time, the pure pressure, pure shear and shear compressive strength are unified into one calculation formula, and the smooth transition.3 is realized, and the "self portable" regenerative concrete weight bearing block masonry vibration table test is combined with "the self carrying" regenerative concrete. The self carrying "structure column and beam system" is used to study the shaking table test of single layer and single span full scale regenerative concrete weight bearing block housing model 1. The damage characteristics, dynamic characteristics and test point response of the model structure are analyzed, and the anti-seismic ability of the model structure is evaluated, and the self portable regenerative concrete self insulation masonry block is proposed. The formula of earthquake shear bearing capacity provides a theoretical basis for further popularization and application of recycled concrete block and the structure system. 1, a new type of energy-saving concrete self insulation block design is designed for the multi-objective comprehensive optimization analysis of the heat, mechanical properties and bulk density of the self insulation block of energy-saving concrete, which only needs the thickness of 280mm wall. A new type of self insulated and load-bearing block block, which meets the requirements of energy saving in severe cold region, saves raw materials and reduces the cost. It puts forward the design proposal of energy saving and insulation design of "inner and narrow outer thickness", and asymmetrical symmetry arrangement, and puts forward the energy saving heat preservation measures of "adjacent hole whole inserting insulation board".2, the new type of energy-saving concrete self insulation masonry masonry is basic. The principle of "strong mortar and weak block" was put forward by the mechanical performance test research, and the masonry compression performance test was carried out on the new type of energy saving self insulation block. The basic mechanical properties of this type of masonry were obtained along the shear performance test of the joint. The basic characteristics of this type of masonry were mastered. And the masonry type of this type was given. The compressive strength and the mean value formula of shear strength.3, the experimental study on the aseismic performance of the new type energy saving concrete block masonry is combined with the "self carrying" system and the matching principle of "strong mortar weak block". The low cycle cyclic loading test of the new block wall is carried out, and the damage characteristics of this type of wall are analyzed, and the various seismic performance of the wall is analyzed. The index is analyzed in detail. Finally, the proposed formula for the anti shear capacity of the new type of masonry wall is proposed, which provides the theoretical basis for the type of block, the popularization and application of the structure form and the principle of "strong mortar weak block" matching proposed by the breakthroughs.
【学位授予单位】：东南大学
【学位级别】：博士
【学位授予年份】：2016
【分类号】：TU364;TU522.3
本文编号：2138206
[Abstract]:Combined with the actual situation in the rural areas of our country, the problems of poor insulation performance, large energy consumption and poor seismic performance are common in the enclosure structure. In addition, huge amount of construction waste will be needed to be treated in urban construction and after major earthquake disasters. This paper focuses on the research and demonstration of the national science and technology support program, the key technology for the suitability of village and town buildings in different areas, and chooses a 40% population, a hot winter cold area with 50% gross domestic product and the wall block of the cold area with the highest heat preservation requirements, and the design of rural housing suitable for various areas. A new type of energy saving and self insulating concrete bearing block, and a series of experimental and theoretical studies on the thermal performance of each block wall, the basic mechanical properties and the seismic performance of masonry are carried out. The main research work and results are as follows: 1, the preparation process of regenerated concrete block mix design for recycled aggregate and the preparation process of recycled aggregate The physical properties are tested, the mix ratio design method of reclaimed concrete self insulation block is put forward, the optimum replacement rate of recycled aggregate.2 is put forward, and the experimental research on the basic mechanical properties of reclaimed concrete self insulation masonry is carried out on the masonry compression performance test of the reclaimed concrete self insulation block, and the shear performance test along the through joint and the shear performance test are carried out. The basic mechanical properties of this type of masonry are obtained and the basic characteristics of this type of masonry are obtained. The formula for calculating the average value of the compressive strength is put forward, and the formula is calculated along the average value of the shear strength along the joint. The measured shear pressure correlation curve is drawn and the shear pressure composite shear failure characteristics are given. The boundary value is proposed and the shear compressive strength theory formula of this type of masonry shear pressure is put forward with the YISHION shear strength as the contrast parameter. For the first time, the pure pressure, pure shear and shear compressive strength are unified into one calculation formula, and the smooth transition.3 is realized, and the "self portable" regenerative concrete weight bearing block masonry vibration table test is combined with "the self carrying" regenerative concrete. The self carrying "structure column and beam system" is used to study the shaking table test of single layer and single span full scale regenerative concrete weight bearing block housing model 1. The damage characteristics, dynamic characteristics and test point response of the model structure are analyzed, and the anti-seismic ability of the model structure is evaluated, and the self portable regenerative concrete self insulation masonry block is proposed. The formula of earthquake shear bearing capacity provides a theoretical basis for further popularization and application of recycled concrete block and the structure system. 1, a new type of energy-saving concrete self insulation block design is designed for the multi-objective comprehensive optimization analysis of the heat, mechanical properties and bulk density of the self insulation block of energy-saving concrete, which only needs the thickness of 280mm wall. A new type of self insulated and load-bearing block block, which meets the requirements of energy saving in severe cold region, saves raw materials and reduces the cost. It puts forward the design proposal of energy saving and insulation design of "inner and narrow outer thickness", and asymmetrical symmetry arrangement, and puts forward the energy saving heat preservation measures of "adjacent hole whole inserting insulation board".2, the new type of energy-saving concrete self insulation masonry masonry is basic. The principle of "strong mortar and weak block" was put forward by the mechanical performance test research, and the masonry compression performance test was carried out on the new type of energy saving self insulation block. The basic mechanical properties of this type of masonry were obtained along the shear performance test of the joint. The basic characteristics of this type of masonry were mastered. And the masonry type of this type was given. The compressive strength and the mean value formula of shear strength.3, the experimental study on the aseismic performance of the new type energy saving concrete block masonry is combined with the "self carrying" system and the matching principle of "strong mortar weak block". The low cycle cyclic loading test of the new block wall is carried out, and the damage characteristics of this type of wall are analyzed, and the various seismic performance of the wall is analyzed. The index is analyzed in detail. Finally, the proposed formula for the anti shear capacity of the new type of masonry wall is proposed, which provides the theoretical basis for the type of block, the popularization and application of the structure form and the principle of "strong mortar weak block" matching proposed by the breakthroughs.
【学位授予单位】：东南大学
【学位级别】：博士
【学位授予年份】：2016
【分类号】：TU364;TU522.3
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