欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
为了揭示砌体填充墙的抗爆破坏机理，在野外实验中，测得了爆炸条件下砌体填充墙上的爆炸荷载及位移，得到了墙的抗爆性能、破坏模式以及碎片的飞散和分布情况。实验结果表明，墙体的破坏模式与荷载的大小有关，其破坏主要由灰缝的破坏引起。结合实验现象，采用分离式建模的精细化数值模拟方法，得到了不同荷载条件下裂缝的发展过程、墙体的边界条件对墙体的破坏模式的影响，确定了墙体不同破坏等级时的药量，进一步说明本文中数值模拟方法的合理性。
英文摘要：
The field tests were conducted to investigate the failure mechanism of the masonry infill wall under blast loading. The blast loads and the displacements of the wall under shock waves were meas- ured. And the failure modes of the wall were obtained as well as the ejection and distribution of the wall fragments. The experimental results indicate that the failure modes of the wall are dependent mainly on the amplitudes of the blast loads and the collapse of the wall is leaded by the failure of the cement linings. Based on the above tests, the separated numerical models were established by using LS-DYNA to simulate the dynamic response and the damage of the masonry infill wall under blast loading. And the spreads of the cracks in the wall under different blast loads were obtained and the charge weights corresponding to the different failure modes were confirmed. The numerical results a- gree quite well with the test data. The boundary conditions can obviously affect the failure modes of the wall.
同期刊论文项目
同项目期刊论文
Responses of Masonry Infill Walls Retrofitted with CFRP, Steel Wire Mesh and Laminated Bars to Blast
Numerical Analysis on theBehavior of Autoclaved Concrete Block Infilled Wall Subjected to Gas Explos
A New Elasto-Viscoplastic Damage Model Combined with the Generalized Hoek-Brown Failure Criterion fo
Non-euclidean continuum model of the zonal disintegration of surrounding rocks around a deep circula
Experimental study on the Crack Initial Stress and the Crack Damage Stress of Red Sandstone Under Di
Dynamic Analysis for Collision Between a Plate and Supports Subjected to Instantaneous Protection St
A numerical method to determine the steady state distribution of passive contaminant in generic vent
Experimental Study on PC Beams Dynamic Performance of Prestress Degree under the Plane Charge Loadin
Effects of the axial in situ stresses on the zonal disintegration phenomenon in the surrounding rock
Dynamic responses of buried arch structure subjected to subsurface localized impulsive loading: Expe
Dynamic anti-crushing behaviors of woven textile sandwich composites: multilayer and gradient effect
Experimental Study on the Impermeability of Concrete Construction Joints with Different Geometric Sh
Zonal disintegration mechanism of cross-anisotropic rock mass around a deep circular tunnel under dy
Elastic responses of underground circular arches considering dynamic soil-structure interaction: A t
Failure mechanisms of sandwich composites with orthotropic integrated woven corrugated cores: Experi
A new elasto-viscoplastic damage model combing with generalized Hoek-Brown failure criterion for the
The non-Euclidean model of failure of the deep rock masses under the deformation incompatibilty cond
3D numerical modelling of projectile penetration into rock-rubble overlays accounting for random dis
Three-dimensional modelling of steel fiber reinforced concrete material under intense dynamic loadin
Experimental research on the dynamic buffering performance of the honeycomb paperboard filled with p
Experimental research on the dynamic energy absorbing capacity of the honeycomb paperboard filled wi
Quantitative analysis of potential rockburst of microcrack-weakened Surrounding rock mass in deep tu
Different crack sizes analyzed for surrounding rock mass around underground caverns in Jinping I hyd
Responses of masonry infill walls retrofitted with CFRP, steel mesh and steel bars to blast loadings
期刊信息
位置：